Merge branch 'master' of ssh://git.openslx.org/openslx-ng/tutor-module

Conflicts:
	Dozentenmodul/src/GUI/SearchImage_GUI.java
	Dozentenmodul/src/Models/person.java
	Dozentenmodul/src/Models/vm.java

11 files changed, 5576 insertions, 2 deletions

diff --git a/Dozentenmodul/src/thrift/AuthenticationError.java b/Dozentenmodul/src/thrift/AuthenticationError.java
new file mode 100644
index 00000000..7d543832
--- /dev/null
+++ b/Dozentenmodul/src/thrift/AuthenticationError.java
@@ -0,0 +1,51 @@
+/**
+ * Autogenerated by Thrift Compiler (0.9.1)
+ *
+ * DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING
+ *  @generated
+ */
+package thrift;
+
+
+import java.util.Map;
+import java.util.HashMap;
+import org.apache.thrift.TEnum;
+
+public enum AuthenticationError implements org.apache.thrift.TEnum {
+  GENERIC_ERROR(0),
+  INVALID_CREDENTIALS(1),
+  ACCOUNT_SUSPENDED(2),
+  BANNED_NETWORK(3);
+
+  private final int value;
+
+  private AuthenticationError(int value) {
+    this.value = value;
+  }
+
+  /**
+   * Get the integer value of this enum value, as defined in the Thrift IDL.
+   */
+  public int getValue() {
+    return value;
+  }
+
+  /**
+   * Find a the enum type by its integer value, as defined in the Thrift IDL.
+   * @return null if the value is not found.
+   */
+  public static AuthenticationError findByValue(int value) { 
+    switch (value) {
+      case 0:
+        return GENERIC_ERROR;
+      case 1:
+        return INVALID_CREDENTIALS;
+      case 2:
+        return ACCOUNT_SUSPENDED;
+      case 3:
+        return BANNED_NETWORK;
+      default:
+        return null;
+    }
+  }
+}
diff --git a/Dozentenmodul/src/thrift/AuthenticationException.java b/Dozentenmodul/src/thrift/AuthenticationException.java
new file mode 100644
index 00000000..d416cacf
--- /dev/null
+++ b/Dozentenmodul/src/thrift/AuthenticationException.java
@@ -0,0 +1,504 @@
+/**
+ * Autogenerated by Thrift Compiler (0.9.1)
+ *
+ * DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING
+ *  @generated
+ */
+package thrift;
+
+import org.apache.thrift.scheme.IScheme;
+import org.apache.thrift.scheme.SchemeFactory;
+import org.apache.thrift.scheme.StandardScheme;
+
+import org.apache.thrift.scheme.TupleScheme;
+import org.apache.thrift.protocol.TTupleProtocol;
+import org.apache.thrift.protocol.TProtocolException;
+import org.apache.thrift.EncodingUtils;
+import org.apache.thrift.TException;
+import org.apache.thrift.async.AsyncMethodCallback;
+import org.apache.thrift.server.AbstractNonblockingServer.*;
+import java.util.List;
+import java.util.ArrayList;
+import java.util.Map;
+import java.util.HashMap;
+import java.util.EnumMap;
+import java.util.Set;
+import java.util.HashSet;
+import java.util.EnumSet;
+import java.util.Collections;
+import java.util.BitSet;
+import java.nio.ByteBuffer;
+import java.util.Arrays;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class AuthenticationException extends TException implements org.apache.thrift.TBase<AuthenticationException, AuthenticationException._Fields>, java.io.Serializable, Cloneable, Comparable<AuthenticationException> {
+  private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("AuthenticationException");
+
+  private static final org.apache.thrift.protocol.TField NUMBER_FIELD_DESC = new org.apache.thrift.protocol.TField("number", org.apache.thrift.protocol.TType.I32, (short)1);
+  private static final org.apache.thrift.protocol.TField MESSAGE_FIELD_DESC = new org.apache.thrift.protocol.TField("message", org.apache.thrift.protocol.TType.STRING, (short)2);
+
+  private static final Map<Class<? extends IScheme>, SchemeFactory> schemes = new HashMap<Class<? extends IScheme>, SchemeFactory>();
+  static {
+    schemes.put(StandardScheme.class, new AuthenticationExceptionStandardSchemeFactory());
+    schemes.put(TupleScheme.class, new AuthenticationExceptionTupleSchemeFactory());
+  }
+
+  /**
+   * 
+   * @see AuthenticationError
+   */
+  public AuthenticationError number; // required
+  public String message; // required
+
+  /** The set of fields this struct contains, along with convenience methods for finding and manipulating them. */
+  public enum _Fields implements org.apache.thrift.TFieldIdEnum {
+    /**
+     * 
+     * @see AuthenticationError
+     */
+    NUMBER((short)1, "number"),
+    MESSAGE((short)2, "message");
+
+    private static final Map<String, _Fields> byName = new HashMap<String, _Fields>();
+
+    static {
+      for (_Fields field : EnumSet.allOf(_Fields.class)) {
+        byName.put(field.getFieldName(), field);
+      }
+    }
+
+    /**
+     * Find the _Fields constant that matches fieldId, or null if its not found.
+     */
+    public static _Fields findByThriftId(int fieldId) {
+      switch(fieldId) {
+        case 1: // NUMBER
+          return NUMBER;
+        case 2: // MESSAGE
+          return MESSAGE;
+        default:
+          return null;
+      }
+    }
+
+    /**
+     * Find the _Fields constant that matches fieldId, throwing an exception
+     * if it is not found.
+     */
+    public static _Fields findByThriftIdOrThrow(int fieldId) {
+      _Fields fields = findByThriftId(fieldId);
+      if (fields == null) throw new IllegalArgumentException("Field " + fieldId + " doesn't exist!");
+      return fields;
+    }
+
+    /**
+     * Find the _Fields constant that matches name, or null if its not found.
+     */
+    public static _Fields findByName(String name) {
+      return byName.get(name);
+    }
+
+    private final short _thriftId;
+    private final String _fieldName;
+
+    _Fields(short thriftId, String fieldName) {
+      _thriftId = thriftId;
+      _fieldName = fieldName;
+    }
+
+    public short getThriftFieldId() {
+      return _thriftId;
+    }
+
+    public String getFieldName() {
+      return _fieldName;
+    }
+  }
+
+  // isset id assignments
+  public static final Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> metaDataMap;
+  static {
+    Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> tmpMap = new EnumMap<_Fields, org.apache.thrift.meta_data.FieldMetaData>(_Fields.class);
+    tmpMap.put(_Fields.NUMBER, new org.apache.thrift.meta_data.FieldMetaData("number", org.apache.thrift.TFieldRequirementType.DEFAULT, 
+        new org.apache.thrift.meta_data.EnumMetaData(org.apache.thrift.protocol.TType.ENUM, AuthenticationError.class)));
+    tmpMap.put(_Fields.MESSAGE, new org.apache.thrift.meta_data.FieldMetaData("message", org.apache.thrift.TFieldRequirementType.DEFAULT, 
+        new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.STRING)));
+    metaDataMap = Collections.unmodifiableMap(tmpMap);
+    org.apache.thrift.meta_data.FieldMetaData.addStructMetaDataMap(AuthenticationException.class, metaDataMap);
+  }
+
+  public AuthenticationException() {
+  }
+
+  public AuthenticationException(
+    AuthenticationError number,
+    String message)
+  {
+    this();
+    this.number = number;
+    this.message = message;
+  }
+
+  /**
+   * Performs a deep copy on <i>other</i>.
+   */
+  public AuthenticationException(AuthenticationException other) {
+    if (other.isSetNumber()) {
+      this.number = other.number;
+    }
+    if (other.isSetMessage()) {
+      this.message = other.message;
+    }
+  }
+
+  public AuthenticationException deepCopy() {
+    return new AuthenticationException(this);
+  }
+
+  @Override
+  public void clear() {
+    this.number = null;
+    this.message = null;
+  }
+
+  /**
+   * 
+   * @see AuthenticationError
+   */
+  public AuthenticationError getNumber() {
+    return this.number;
+  }
+
+  /**
+   * 
+   * @see AuthenticationError
+   */
+  public AuthenticationException setNumber(AuthenticationError number) {
+    this.number = number;
+    return this;
+  }
+
+  public void unsetNumber() {
+    this.number = null;
+  }
+
+  /** Returns true if field number is set (has been assigned a value) and false otherwise */
+  public boolean isSetNumber() {
+    return this.number != null;
+  }
+
+  public void setNumberIsSet(boolean value) {
+    if (!value) {
+      this.number = null;
+    }
+  }
+
+  public String getMessage() {
+    return this.message;
+  }
+
+  public AuthenticationException setMessage(String message) {
+    this.message = message;
+    return this;
+  }
+
+  public void unsetMessage() {
+    this.message = null;
+  }
+
+  /** Returns true if field message is set (has been assigned a value) and false otherwise */
+  public boolean isSetMessage() {
+    return this.message != null;
+  }
+
+  public void setMessageIsSet(boolean value) {
+    if (!value) {
+      this.message = null;
+    }
+  }
+
+  public void setFieldValue(_Fields field, Object value) {
+    switch (field) {
+    case NUMBER:
+      if (value == null) {
+        unsetNumber();
+      } else {
+        setNumber((AuthenticationError)value);
+      }
+      break;
+
+    case MESSAGE:
+      if (value == null) {
+        unsetMessage();
+      } else {
+        setMessage((String)value);
+      }
+      break;
+
+    }
+  }
+
+  public Object getFieldValue(_Fields field) {
+    switch (field) {
+    case NUMBER:
+      return getNumber();
+
+    case MESSAGE:
+      return getMessage();
+
+    }
+    throw new IllegalStateException();
+  }
+
+  /** Returns true if field corresponding to fieldID is set (has been assigned a value) and false otherwise */
+  public boolean isSet(_Fields field) {
+    if (field == null) {
+      throw new IllegalArgumentException();
+    }
+
+    switch (field) {
+    case NUMBER:
+      return isSetNumber();
+    case MESSAGE:
+      return isSetMessage();
+    }
+    throw new IllegalStateException();
+  }
+
+  @Override
+  public boolean equals(Object that) {
+    if (that == null)
+      return false;
+    if (that instanceof AuthenticationException)
+      return this.equals((AuthenticationException)that);
+    return false;
+  }
+
+  public boolean equals(AuthenticationException that) {
+    if (that == null)
+      return false;
+
+    boolean this_present_number = true && this.isSetNumber();
+    boolean that_present_number = true && that.isSetNumber();
+    if (this_present_number || that_present_number) {
+      if (!(this_present_number && that_present_number))
+        return false;
+      if (!this.number.equals(that.number))
+        return false;
+    }
+
+    boolean this_present_message = true && this.isSetMessage();
+    boolean that_present_message = true && that.isSetMessage();
+    if (this_present_message || that_present_message) {
+      if (!(this_present_message && that_present_message))
+        return false;
+      if (!this.message.equals(that.message))
+        return false;
+    }
+
+    return true;
+  }
+
+  @Override
+  public int hashCode() {
+    return 0;
+  }
+
+  @Override
+  public int compareTo(AuthenticationException other) {
+    if (!getClass().equals(other.getClass())) {
+      return getClass().getName().compareTo(other.getClass().getName());
+    }
+
+    int lastComparison = 0;
+
+    lastComparison = Boolean.valueOf(isSetNumber()).compareTo(other.isSetNumber());
+    if (lastComparison != 0) {
+      return lastComparison;
+    }
+    if (isSetNumber()) {
+      lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.number, other.number);
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+    }
+    lastComparison = Boolean.valueOf(isSetMessage()).compareTo(other.isSetMessage());
+    if (lastComparison != 0) {
+      return lastComparison;
+    }
+    if (isSetMessage()) {
+      lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.message, other.message);
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+    }
+    return 0;
+  }
+
+  public _Fields fieldForId(int fieldId) {
+    return _Fields.findByThriftId(fieldId);
+  }
+
+  public void read(org.apache.thrift.protocol.TProtocol iprot) throws org.apache.thrift.TException {
+    schemes.get(iprot.getScheme()).getScheme().read(iprot, this);
+  }
+
+  public void write(org.apache.thrift.protocol.TProtocol oprot) throws org.apache.thrift.TException {
+    schemes.get(oprot.getScheme()).getScheme().write(oprot, this);
+  }
+
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder("AuthenticationException(");
+    boolean first = true;
+
+    sb.append("number:");
+    if (this.number == null) {
+      sb.append("null");
+    } else {
+      sb.append(this.number);
+    }
+    first = false;
+    if (!first) sb.append(", ");
+    sb.append("message:");
+    if (this.message == null) {
+      sb.append("null");
+    } else {
+      sb.append(this.message);
+    }
+    first = false;
+    sb.append(")");
+    return sb.toString();
+  }
+
+  public void validate() throws org.apache.thrift.TException {
+    // check for required fields
+    // check for sub-struct validity
+  }
+
+  private void writeObject(java.io.ObjectOutputStream out) throws java.io.IOException {
+    try {
+      write(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(out)));
+    } catch (org.apache.thrift.TException te) {
+      throw new java.io.IOException(te);
+    }
+  }
+
+  private void readObject(java.io.ObjectInputStream in) throws java.io.IOException, ClassNotFoundException {
+    try {
+      read(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(in)));
+    } catch (org.apache.thrift.TException te) {
+      throw new java.io.IOException(te);
+    }
+  }
+
+  private static class AuthenticationExceptionStandardSchemeFactory implements SchemeFactory {
+    public AuthenticationExceptionStandardScheme getScheme() {
+      return new AuthenticationExceptionStandardScheme();
+    }
+  }
+
+  private static class AuthenticationExceptionStandardScheme extends StandardScheme<AuthenticationException> {
+
+    public void read(org.apache.thrift.protocol.TProtocol iprot, AuthenticationException struct) throws org.apache.thrift.TException {
+      org.apache.thrift.protocol.TField schemeField;
+      iprot.readStructBegin();
+      while (true)
+      {
+        schemeField = iprot.readFieldBegin();
+        if (schemeField.type == org.apache.thrift.protocol.TType.STOP) { 
+          break;
+        }
+        switch (schemeField.id) {
+          case 1: // NUMBER
+            if (schemeField.type == org.apache.thrift.protocol.TType.I32) {
+              struct.number = AuthenticationError.findByValue(iprot.readI32());
+              struct.setNumberIsSet(true);
+            } else { 
+              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+            }
+            break;
+          case 2: // MESSAGE
+            if (schemeField.type == org.apache.thrift.protocol.TType.STRING) {
+              struct.message = iprot.readString();
+              struct.setMessageIsSet(true);
+            } else { 
+              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+            }
+            break;
+          default:
+            org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+        }
+        iprot.readFieldEnd();
+      }
+      iprot.readStructEnd();
+
+      // check for required fields of primitive type, which can't be checked in the validate method
+      struct.validate();
+    }
+
+    public void write(org.apache.thrift.protocol.TProtocol oprot, AuthenticationException struct) throws org.apache.thrift.TException {
+      struct.validate();
+
+      oprot.writeStructBegin(STRUCT_DESC);
+      if (struct.number != null) {
+        oprot.writeFieldBegin(NUMBER_FIELD_DESC);
+        oprot.writeI32(struct.number.getValue());
+        oprot.writeFieldEnd();
+      }
+      if (struct.message != null) {
+        oprot.writeFieldBegin(MESSAGE_FIELD_DESC);
+        oprot.writeString(struct.message);
+        oprot.writeFieldEnd();
+      }
+      oprot.writeFieldStop();
+      oprot.writeStructEnd();
+    }
+
+  }
+
+  private static class AuthenticationExceptionTupleSchemeFactory implements SchemeFactory {
+    public AuthenticationExceptionTupleScheme getScheme() {
+      return new AuthenticationExceptionTupleScheme();
+    }
+  }
+
+  private static class AuthenticationExceptionTupleScheme extends TupleScheme<AuthenticationException> {
+
+    @Override
+    public void write(org.apache.thrift.protocol.TProtocol prot, AuthenticationException struct) throws org.apache.thrift.TException {
+      TTupleProtocol oprot = (TTupleProtocol) prot;
+      BitSet optionals = new BitSet();
+      if (struct.isSetNumber()) {
+        optionals.set(0);
+      }
+      if (struct.isSetMessage()) {
+        optionals.set(1);
+      }
+      oprot.writeBitSet(optionals, 2);
+      if (struct.isSetNumber()) {
+        oprot.writeI32(struct.number.getValue());
+      }
+      if (struct.isSetMessage()) {
+        oprot.writeString(struct.message);
+      }
+    }
+
+    @Override
+    public void read(org.apache.thrift.protocol.TProtocol prot, AuthenticationException struct) throws org.apache.thrift.TException {
+      TTupleProtocol iprot = (TTupleProtocol) prot;
+      BitSet incoming = iprot.readBitSet(2);
+      if (incoming.get(0)) {
+        struct.number = AuthenticationError.findByValue(iprot.readI32());
+        struct.setNumberIsSet(true);
+      }
+      if (incoming.get(1)) {
+        struct.message = iprot.readString();
+        struct.setMessageIsSet(true);
+      }
+    }
+  }
+
+}
+
diff --git a/Dozentenmodul/src/thrift/AuthorizationError.java b/Dozentenmodul/src/thrift/AuthorizationError.java
new file mode 100644
index 00000000..443be4f4
--- /dev/null
+++ b/Dozentenmodul/src/thrift/AuthorizationError.java
@@ -0,0 +1,48 @@
+/**
+ * Autogenerated by Thrift Compiler (0.9.1)
+ *
+ * DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING
+ *  @generated
+ */
+package thrift;
+
+
+import java.util.Map;
+import java.util.HashMap;
+import org.apache.thrift.TEnum;
+
+public enum AuthorizationError implements org.apache.thrift.TEnum {
+  GENERIC_ERROR(0),
+  NOT_AUTHENTICATED(1),
+  NO_PERMISSION(2);
+
+  private final int value;
+
+  private AuthorizationError(int value) {
+    this.value = value;
+  }
+
+  /**
+   * Get the integer value of this enum value, as defined in the Thrift IDL.
+   */
+  public int getValue() {
+    return value;
+  }
+
+  /**
+   * Find a the enum type by its integer value, as defined in the Thrift IDL.
+   * @return null if the value is not found.
+   */
+  public static AuthorizationError findByValue(int value) { 
+    switch (value) {
+      case 0:
+        return GENERIC_ERROR;
+      case 1:
+        return NOT_AUTHENTICATED;
+      case 2:
+        return NO_PERMISSION;
+      default:
+        return null;
+    }
+  }
+}
diff --git a/Dozentenmodul/src/thrift/AuthorizationException.java b/Dozentenmodul/src/thrift/AuthorizationException.java
new file mode 100644
index 00000000..0d5320c2
--- /dev/null
+++ b/Dozentenmodul/src/thrift/AuthorizationException.java
@@ -0,0 +1,504 @@
+/**
+ * Autogenerated by Thrift Compiler (0.9.1)
+ *
+ * DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING
+ *  @generated
+ */
+package thrift;
+
+import org.apache.thrift.scheme.IScheme;
+import org.apache.thrift.scheme.SchemeFactory;
+import org.apache.thrift.scheme.StandardScheme;
+
+import org.apache.thrift.scheme.TupleScheme;
+import org.apache.thrift.protocol.TTupleProtocol;
+import org.apache.thrift.protocol.TProtocolException;
+import org.apache.thrift.EncodingUtils;
+import org.apache.thrift.TException;
+import org.apache.thrift.async.AsyncMethodCallback;
+import org.apache.thrift.server.AbstractNonblockingServer.*;
+import java.util.List;
+import java.util.ArrayList;
+import java.util.Map;
+import java.util.HashMap;
+import java.util.EnumMap;
+import java.util.Set;
+import java.util.HashSet;
+import java.util.EnumSet;
+import java.util.Collections;
+import java.util.BitSet;
+import java.nio.ByteBuffer;
+import java.util.Arrays;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class AuthorizationException extends TException implements org.apache.thrift.TBase<AuthorizationException, AuthorizationException._Fields>, java.io.Serializable, Cloneable, Comparable<AuthorizationException> {
+  private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("AuthorizationException");
+
+  private static final org.apache.thrift.protocol.TField NUMBER_FIELD_DESC = new org.apache.thrift.protocol.TField("number", org.apache.thrift.protocol.TType.I32, (short)1);
+  private static final org.apache.thrift.protocol.TField MESSAGE_FIELD_DESC = new org.apache.thrift.protocol.TField("message", org.apache.thrift.protocol.TType.STRING, (short)2);
+
+  private static final Map<Class<? extends IScheme>, SchemeFactory> schemes = new HashMap<Class<? extends IScheme>, SchemeFactory>();
+  static {
+    schemes.put(StandardScheme.class, new AuthorizationExceptionStandardSchemeFactory());
+    schemes.put(TupleScheme.class, new AuthorizationExceptionTupleSchemeFactory());
+  }
+
+  /**
+   * 
+   * @see AuthorizationError
+   */
+  public AuthorizationError number; // required
+  public String message; // required
+
+  /** The set of fields this struct contains, along with convenience methods for finding and manipulating them. */
+  public enum _Fields implements org.apache.thrift.TFieldIdEnum {
+    /**
+     * 
+     * @see AuthorizationError
+     */
+    NUMBER((short)1, "number"),
+    MESSAGE((short)2, "message");
+
+    private static final Map<String, _Fields> byName = new HashMap<String, _Fields>();
+
+    static {
+      for (_Fields field : EnumSet.allOf(_Fields.class)) {
+        byName.put(field.getFieldName(), field);
+      }
+    }
+
+    /**
+     * Find the _Fields constant that matches fieldId, or null if its not found.
+     */
+    public static _Fields findByThriftId(int fieldId) {
+      switch(fieldId) {
+        case 1: // NUMBER
+          return NUMBER;
+        case 2: // MESSAGE
+          return MESSAGE;
+        default:
+          return null;
+      }
+    }
+
+    /**
+     * Find the _Fields constant that matches fieldId, throwing an exception
+     * if it is not found.
+     */
+    public static _Fields findByThriftIdOrThrow(int fieldId) {
+      _Fields fields = findByThriftId(fieldId);
+      if (fields == null) throw new IllegalArgumentException("Field " + fieldId + " doesn't exist!");
+      return fields;
+    }
+
+    /**
+     * Find the _Fields constant that matches name, or null if its not found.
+     */
+    public static _Fields findByName(String name) {
+      return byName.get(name);
+    }
+
+    private final short _thriftId;
+    private final String _fieldName;
+
+    _Fields(short thriftId, String fieldName) {
+      _thriftId = thriftId;
+      _fieldName = fieldName;
+    }
+
+    public short getThriftFieldId() {
+      return _thriftId;
+    }
+
+    public String getFieldName() {
+      return _fieldName;
+    }
+  }
+
+  // isset id assignments
+  public static final Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> metaDataMap;
+  static {
+    Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> tmpMap = new EnumMap<_Fields, org.apache.thrift.meta_data.FieldMetaData>(_Fields.class);
+    tmpMap.put(_Fields.NUMBER, new org.apache.thrift.meta_data.FieldMetaData("number", org.apache.thrift.TFieldRequirementType.DEFAULT, 
+        new org.apache.thrift.meta_data.EnumMetaData(org.apache.thrift.protocol.TType.ENUM, AuthorizationError.class)));
+    tmpMap.put(_Fields.MESSAGE, new org.apache.thrift.meta_data.FieldMetaData("message", org.apache.thrift.TFieldRequirementType.DEFAULT, 
+        new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.STRING)));
+    metaDataMap = Collections.unmodifiableMap(tmpMap);
+    org.apache.thrift.meta_data.FieldMetaData.addStructMetaDataMap(AuthorizationException.class, metaDataMap);
+  }
+
+  public AuthorizationException() {
+  }
+
+  public AuthorizationException(
+    AuthorizationError number,
+    String message)
+  {
+    this();
+    this.number = number;
+    this.message = message;
+  }
+
+  /**
+   * Performs a deep copy on <i>other</i>.
+   */
+  public AuthorizationException(AuthorizationException other) {
+    if (other.isSetNumber()) {
+      this.number = other.number;
+    }
+    if (other.isSetMessage()) {
+      this.message = other.message;
+    }
+  }
+
+  public AuthorizationException deepCopy() {
+    return new AuthorizationException(this);
+  }
+
+  @Override
+  public void clear() {
+    this.number = null;
+    this.message = null;
+  }
+
+  /**
+   * 
+   * @see AuthorizationError
+   */
+  public AuthorizationError getNumber() {
+    return this.number;
+  }
+
+  /**
+   * 
+   * @see AuthorizationError
+   */
+  public AuthorizationException setNumber(AuthorizationError number) {
+    this.number = number;
+    return this;
+  }
+
+  public void unsetNumber() {
+    this.number = null;
+  }
+
+  /** Returns true if field number is set (has been assigned a value) and false otherwise */
+  public boolean isSetNumber() {
+    return this.number != null;
+  }
+
+  public void setNumberIsSet(boolean value) {
+    if (!value) {
+      this.number = null;
+    }
+  }
+
+  public String getMessage() {
+    return this.message;
+  }
+
+  public AuthorizationException setMessage(String message) {
+    this.message = message;
+    return this;
+  }
+
+  public void unsetMessage() {
+    this.message = null;
+  }
+
+  /** Returns true if field message is set (has been assigned a value) and false otherwise */
+  public boolean isSetMessage() {
+    return this.message != null;
+  }
+
+  public void setMessageIsSet(boolean value) {
+    if (!value) {
+      this.message = null;
+    }
+  }
+
+  public void setFieldValue(_Fields field, Object value) {
+    switch (field) {
+    case NUMBER:
+      if (value == null) {
+        unsetNumber();
+      } else {
+        setNumber((AuthorizationError)value);
+      }
+      break;
+
+    case MESSAGE:
+      if (value == null) {
+        unsetMessage();
+      } else {
+        setMessage((String)value);
+      }
+      break;
+
+    }
+  }
+
+  public Object getFieldValue(_Fields field) {
+    switch (field) {
+    case NUMBER:
+      return getNumber();
+
+    case MESSAGE:
+      return getMessage();
+
+    }
+    throw new IllegalStateException();
+  }
+
+  /** Returns true if field corresponding to fieldID is set (has been assigned a value) and false otherwise */
+  public boolean isSet(_Fields field) {
+    if (field == null) {
+      throw new IllegalArgumentException();
+    }
+
+    switch (field) {
+    case NUMBER:
+      return isSetNumber();
+    case MESSAGE:
+      return isSetMessage();
+    }
+    throw new IllegalStateException();
+  }
+
+  @Override
+  public boolean equals(Object that) {
+    if (that == null)
+      return false;
+    if (that instanceof AuthorizationException)
+      return this.equals((AuthorizationException)that);
+    return false;
+  }
+
+  public boolean equals(AuthorizationException that) {
+    if (that == null)
+      return false;
+
+    boolean this_present_number = true && this.isSetNumber();
+    boolean that_present_number = true && that.isSetNumber();
+    if (this_present_number || that_present_number) {
+      if (!(this_present_number && that_present_number))
+        return false;
+      if (!this.number.equals(that.number))
+        return false;
+    }
+
+    boolean this_present_message = true && this.isSetMessage();
+    boolean that_present_message = true && that.isSetMessage();
+    if (this_present_message || that_present_message) {
+      if (!(this_present_message && that_present_message))
+        return false;
+      if (!this.message.equals(that.message))
+        return false;
+    }
+
+    return true;
+  }
+
+  @Override
+  public int hashCode() {
+    return 0;
+  }
+
+  @Override
+  public int compareTo(AuthorizationException other) {
+    if (!getClass().equals(other.getClass())) {
+      return getClass().getName().compareTo(other.getClass().getName());
+    }
+
+    int lastComparison = 0;
+
+    lastComparison = Boolean.valueOf(isSetNumber()).compareTo(other.isSetNumber());
+    if (lastComparison != 0) {
+      return lastComparison;
+    }
+    if (isSetNumber()) {
+      lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.number, other.number);
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+    }
+    lastComparison = Boolean.valueOf(isSetMessage()).compareTo(other.isSetMessage());
+    if (lastComparison != 0) {
+      return lastComparison;
+    }
+    if (isSetMessage()) {
+      lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.message, other.message);
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+    }
+    return 0;
+  }
+
+  public _Fields fieldForId(int fieldId) {
+    return _Fields.findByThriftId(fieldId);
+  }
+
+  public void read(org.apache.thrift.protocol.TProtocol iprot) throws org.apache.thrift.TException {
+    schemes.get(iprot.getScheme()).getScheme().read(iprot, this);
+  }
+
+  public void write(org.apache.thrift.protocol.TProtocol oprot) throws org.apache.thrift.TException {
+    schemes.get(oprot.getScheme()).getScheme().write(oprot, this);
+  }
+
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder("AuthorizationException(");
+    boolean first = true;
+
+    sb.append("number:");
+    if (this.number == null) {
+      sb.append("null");
+    } else {
+      sb.append(this.number);
+    }
+    first = false;
+    if (!first) sb.append(", ");
+    sb.append("message:");
+    if (this.message == null) {
+      sb.append("null");
+    } else {
+      sb.append(this.message);
+    }
+    first = false;
+    sb.append(")");
+    return sb.toString();
+  }
+
+  public void validate() throws org.apache.thrift.TException {
+    // check for required fields
+    // check for sub-struct validity
+  }
+
+  private void writeObject(java.io.ObjectOutputStream out) throws java.io.IOException {
+    try {
+      write(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(out)));
+    } catch (org.apache.thrift.TException te) {
+      throw new java.io.IOException(te);
+    }
+  }
+
+  private void readObject(java.io.ObjectInputStream in) throws java.io.IOException, ClassNotFoundException {
+    try {
+      read(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(in)));
+    } catch (org.apache.thrift.TException te) {
+      throw new java.io.IOException(te);
+    }
+  }
+
+  private static class AuthorizationExceptionStandardSchemeFactory implements SchemeFactory {
+    public AuthorizationExceptionStandardScheme getScheme() {
+      return new AuthorizationExceptionStandardScheme();
+    }
+  }
+
+  private static class AuthorizationExceptionStandardScheme extends StandardScheme<AuthorizationException> {
+
+    public void read(org.apache.thrift.protocol.TProtocol iprot, AuthorizationException struct) throws org.apache.thrift.TException {
+      org.apache.thrift.protocol.TField schemeField;
+      iprot.readStructBegin();
+      while (true)
+      {
+        schemeField = iprot.readFieldBegin();
+        if (schemeField.type == org.apache.thrift.protocol.TType.STOP) { 
+          break;
+        }
+        switch (schemeField.id) {
+          case 1: // NUMBER
+            if (schemeField.type == org.apache.thrift.protocol.TType.I32) {
+              struct.number = AuthorizationError.findByValue(iprot.readI32());
+              struct.setNumberIsSet(true);
+            } else { 
+              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+            }
+            break;
+          case 2: // MESSAGE
+            if (schemeField.type == org.apache.thrift.protocol.TType.STRING) {
+              struct.message = iprot.readString();
+              struct.setMessageIsSet(true);
+            } else { 
+              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+            }
+            break;
+          default:
+            org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+        }
+        iprot.readFieldEnd();
+      }
+      iprot.readStructEnd();
+
+      // check for required fields of primitive type, which can't be checked in the validate method
+      struct.validate();
+    }
+
+    public void write(org.apache.thrift.protocol.TProtocol oprot, AuthorizationException struct) throws org.apache.thrift.TException {
+      struct.validate();
+
+      oprot.writeStructBegin(STRUCT_DESC);
+      if (struct.number != null) {
+        oprot.writeFieldBegin(NUMBER_FIELD_DESC);
+        oprot.writeI32(struct.number.getValue());
+        oprot.writeFieldEnd();
+      }
+      if (struct.message != null) {
+        oprot.writeFieldBegin(MESSAGE_FIELD_DESC);
+        oprot.writeString(struct.message);
+        oprot.writeFieldEnd();
+      }
+      oprot.writeFieldStop();
+      oprot.writeStructEnd();
+    }
+
+  }
+
+  private static class AuthorizationExceptionTupleSchemeFactory implements SchemeFactory {
+    public AuthorizationExceptionTupleScheme getScheme() {
+      return new AuthorizationExceptionTupleScheme();
+    }
+  }
+
+  private static class AuthorizationExceptionTupleScheme extends TupleScheme<AuthorizationException> {
+
+    @Override
+    public void write(org.apache.thrift.protocol.TProtocol prot, AuthorizationException struct) throws org.apache.thrift.TException {
+      TTupleProtocol oprot = (TTupleProtocol) prot;
+      BitSet optionals = new BitSet();
+      if (struct.isSetNumber()) {
+        optionals.set(0);
+      }
+      if (struct.isSetMessage()) {
+        optionals.set(1);
+      }
+      oprot.writeBitSet(optionals, 2);
+      if (struct.isSetNumber()) {
+        oprot.writeI32(struct.number.getValue());
+      }
+      if (struct.isSetMessage()) {
+        oprot.writeString(struct.message);
+      }
+    }
+
+    @Override
+    public void read(org.apache.thrift.protocol.TProtocol prot, AuthorizationException struct) throws org.apache.thrift.TException {
+      TTupleProtocol iprot = (TTupleProtocol) prot;
+      BitSet incoming = iprot.readBitSet(2);
+      if (incoming.get(0)) {
+        struct.number = AuthorizationError.findByValue(iprot.readI32());
+        struct.setNumberIsSet(true);
+      }
+      if (incoming.get(1)) {
+        struct.message = iprot.readString();
+        struct.setMessageIsSet(true);
+      }
+    }
+  }
+
+}
+
diff --git a/Dozentenmodul/src/thrift/ImageServer.java b/Dozentenmodul/src/thrift/ImageServer.java
new file mode 100644
index 00000000..410f437b
--- /dev/null
+++ b/Dozentenmodul/src/thrift/ImageServer.java
@@ -0,0 +1,2871 @@
+/**
+ * Autogenerated by Thrift Compiler (0.9.1)
+ *
+ * DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING
+ *  @generated
+ */
+package thrift;
+
+import org.apache.thrift.scheme.IScheme;
+import org.apache.thrift.scheme.SchemeFactory;
+import org.apache.thrift.scheme.StandardScheme;
+
+import org.apache.thrift.scheme.TupleScheme;
+import org.apache.thrift.protocol.TTupleProtocol;
+import org.apache.thrift.protocol.TProtocolException;
+import org.apache.thrift.EncodingUtils;
+import org.apache.thrift.TException;
+import org.apache.thrift.async.AsyncMethodCallback;
+import org.apache.thrift.server.AbstractNonblockingServer.*;
+import java.util.List;
+import java.util.ArrayList;
+import java.util.Map;
+import java.util.HashMap;
+import java.util.EnumMap;
+import java.util.Set;
+import java.util.HashSet;
+import java.util.EnumSet;
+import java.util.Collections;
+import java.util.BitSet;
+import java.nio.ByteBuffer;
+import java.util.Arrays;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class ImageServer {
+
+  public interface Iface {
+
+    public boolean ping() throws org.apache.thrift.TException;
+
+    public SessionData authenticate(String username, String password) throws AuthenticationException, org.apache.thrift.TException;
+
+    public UserInfo getUserFromToken(String token) throws InvalidTokenException, org.apache.thrift.TException;
+
+  }
+
+  public interface AsyncIface {
+
+    public void ping(org.apache.thrift.async.AsyncMethodCallback resultHandler) throws org.apache.thrift.TException;
+
+    public void authenticate(String username, String password, org.apache.thrift.async.AsyncMethodCallback resultHandler) throws org.apache.thrift.TException;
+
+    public void getUserFromToken(String token, org.apache.thrift.async.AsyncMethodCallback resultHandler) throws org.apache.thrift.TException;
+
+  }
+
+  public static class Client extends org.apache.thrift.TServiceClient implements Iface {
+    public static class Factory implements org.apache.thrift.TServiceClientFactory<Client> {
+      public Factory() {}
+      public Client getClient(org.apache.thrift.protocol.TProtocol prot) {
+        return new Client(prot);
+      }
+      public Client getClient(org.apache.thrift.protocol.TProtocol iprot, org.apache.thrift.protocol.TProtocol oprot) {
+        return new Client(iprot, oprot);
+      }
+    }
+
+    public Client(org.apache.thrift.protocol.TProtocol prot)
+    {
+      super(prot, prot);
+    }
+
+    public Client(org.apache.thrift.protocol.TProtocol iprot, org.apache.thrift.protocol.TProtocol oprot) {
+      super(iprot, oprot);
+    }
+
+    public boolean ping() throws org.apache.thrift.TException
+    {
+      send_ping();
+      return recv_ping();
+    }
+
+    public void send_ping() throws org.apache.thrift.TException
+    {
+      ping_args args = new ping_args();
+      sendBase("ping", args);
+    }
+
+    public boolean recv_ping() throws org.apache.thrift.TException
+    {
+      ping_result result = new ping_result();
+      receiveBase(result, "ping");
+      if (result.isSetSuccess()) {
+        return result.success;
+      }
+      throw new org.apache.thrift.TApplicationException(org.apache.thrift.TApplicationException.MISSING_RESULT, "ping failed: unknown result");
+    }
+
+    public SessionData authenticate(String username, String password) throws AuthenticationException, org.apache.thrift.TException
+    {
+      send_authenticate(username, password);
+      return recv_authenticate();
+    }
+
+    public void send_authenticate(String username, String password) throws org.apache.thrift.TException
+    {
+      authenticate_args args = new authenticate_args();
+      args.setUsername(username);
+      args.setPassword(password);
+      sendBase("authenticate", args);
+    }
+
+    public SessionData recv_authenticate() throws AuthenticationException, org.apache.thrift.TException
+    {
+      authenticate_result result = new authenticate_result();
+      receiveBase(result, "authenticate");
+      if (result.isSetSuccess()) {
+        return result.success;
+      }
+      if (result.failure != null) {
+        throw result.failure;
+      }
+      throw new org.apache.thrift.TApplicationException(org.apache.thrift.TApplicationException.MISSING_RESULT, "authenticate failed: unknown result");
+    }
+
+    public UserInfo getUserFromToken(String token) throws InvalidTokenException, org.apache.thrift.TException
+    {
+      send_getUserFromToken(token);
+      return recv_getUserFromToken();
+    }
+
+    public void send_getUserFromToken(String token) throws org.apache.thrift.TException
+    {
+      getUserFromToken_args args = new getUserFromToken_args();
+      args.setToken(token);
+      sendBase("getUserFromToken", args);
+    }
+
+    public UserInfo recv_getUserFromToken() throws InvalidTokenException, org.apache.thrift.TException
+    {
+      getUserFromToken_result result = new getUserFromToken_result();
+      receiveBase(result, "getUserFromToken");
+      if (result.isSetSuccess()) {
+        return result.success;
+      }
+      if (result.failure != null) {
+        throw result.failure;
+      }
+      throw new org.apache.thrift.TApplicationException(org.apache.thrift.TApplicationException.MISSING_RESULT, "getUserFromToken failed: unknown result");
+    }
+
+  }
+  public static class AsyncClient extends org.apache.thrift.async.TAsyncClient implements AsyncIface {
+    public static class Factory implements org.apache.thrift.async.TAsyncClientFactory<AsyncClient> {
+      private org.apache.thrift.async.TAsyncClientManager clientManager;
+      private org.apache.thrift.protocol.TProtocolFactory protocolFactory;
+      public Factory(org.apache.thrift.async.TAsyncClientManager clientManager, org.apache.thrift.protocol.TProtocolFactory protocolFactory) {
+        this.clientManager = clientManager;
+        this.protocolFactory = protocolFactory;
+      }
+      public AsyncClient getAsyncClient(org.apache.thrift.transport.TNonblockingTransport transport) {
+        return new AsyncClient(protocolFactory, clientManager, transport);
+      }
+    }
+
+    public AsyncClient(org.apache.thrift.protocol.TProtocolFactory protocolFactory, org.apache.thrift.async.TAsyncClientManager clientManager, org.apache.thrift.transport.TNonblockingTransport transport) {
+      super(protocolFactory, clientManager, transport);
+    }
+
+    public void ping(org.apache.thrift.async.AsyncMethodCallback resultHandler) throws org.apache.thrift.TException {
+      checkReady();
+      ping_call method_call = new ping_call(resultHandler, this, ___protocolFactory, ___transport);
+      this.___currentMethod = method_call;
+      ___manager.call(method_call);
+    }
+
+    public static class ping_call extends org.apache.thrift.async.TAsyncMethodCall {
+      public ping_call(org.apache.thrift.async.AsyncMethodCallback resultHandler, org.apache.thrift.async.TAsyncClient client, org.apache.thrift.protocol.TProtocolFactory protocolFactory, org.apache.thrift.transport.TNonblockingTransport transport) throws org.apache.thrift.TException {
+        super(client, protocolFactory, transport, resultHandler, false);
+      }
+
+      public void write_args(org.apache.thrift.protocol.TProtocol prot) throws org.apache.thrift.TException {
+        prot.writeMessageBegin(new org.apache.thrift.protocol.TMessage("ping", org.apache.thrift.protocol.TMessageType.CALL, 0));
+        ping_args args = new ping_args();
+        args.write(prot);
+        prot.writeMessageEnd();
+      }
+
+      public boolean getResult() throws org.apache.thrift.TException {
+        if (getState() != org.apache.thrift.async.TAsyncMethodCall.State.RESPONSE_READ) {
+          throw new IllegalStateException("Method call not finished!");
+        }
+        org.apache.thrift.transport.TMemoryInputTransport memoryTransport = new org.apache.thrift.transport.TMemoryInputTransport(getFrameBuffer().array());
+        org.apache.thrift.protocol.TProtocol prot = client.getProtocolFactory().getProtocol(memoryTransport);
+        return (new Client(prot)).recv_ping();
+      }
+    }
+
+    public void authenticate(String username, String password, org.apache.thrift.async.AsyncMethodCallback resultHandler) throws org.apache.thrift.TException {
+      checkReady();
+      authenticate_call method_call = new authenticate_call(username, password, resultHandler, this, ___protocolFactory, ___transport);
+      this.___currentMethod = method_call;
+      ___manager.call(method_call);
+    }
+
+    public static class authenticate_call extends org.apache.thrift.async.TAsyncMethodCall {
+      private String username;
+      private String password;
+      public authenticate_call(String username, String password, org.apache.thrift.async.AsyncMethodCallback resultHandler, org.apache.thrift.async.TAsyncClient client, org.apache.thrift.protocol.TProtocolFactory protocolFactory, org.apache.thrift.transport.TNonblockingTransport transport) throws org.apache.thrift.TException {
+        super(client, protocolFactory, transport, resultHandler, false);
+        this.username = username;
+        this.password = password;
+      }
+
+      public void write_args(org.apache.thrift.protocol.TProtocol prot) throws org.apache.thrift.TException {
+        prot.writeMessageBegin(new org.apache.thrift.protocol.TMessage("authenticate", org.apache.thrift.protocol.TMessageType.CALL, 0));
+        authenticate_args args = new authenticate_args();
+        args.setUsername(username);
+        args.setPassword(password);
+        args.write(prot);
+        prot.writeMessageEnd();
+      }
+
+      public SessionData getResult() throws AuthenticationException, org.apache.thrift.TException {
+        if (getState() != org.apache.thrift.async.TAsyncMethodCall.State.RESPONSE_READ) {
+          throw new IllegalStateException("Method call not finished!");
+        }
+        org.apache.thrift.transport.TMemoryInputTransport memoryTransport = new org.apache.thrift.transport.TMemoryInputTransport(getFrameBuffer().array());
+        org.apache.thrift.protocol.TProtocol prot = client.getProtocolFactory().getProtocol(memoryTransport);
+        return (new Client(prot)).recv_authenticate();
+      }
+    }
+
+    public void getUserFromToken(String token, org.apache.thrift.async.AsyncMethodCallback resultHandler) throws org.apache.thrift.TException {
+      checkReady();
+      getUserFromToken_call method_call = new getUserFromToken_call(token, resultHandler, this, ___protocolFactory, ___transport);
+      this.___currentMethod = method_call;
+      ___manager.call(method_call);
+    }
+
+    public static class getUserFromToken_call extends org.apache.thrift.async.TAsyncMethodCall {
+      private String token;
+      public getUserFromToken_call(String token, org.apache.thrift.async.AsyncMethodCallback resultHandler, org.apache.thrift.async.TAsyncClient client, org.apache.thrift.protocol.TProtocolFactory protocolFactory, org.apache.thrift.transport.TNonblockingTransport transport) throws org.apache.thrift.TException {
+        super(client, protocolFactory, transport, resultHandler, false);
+        this.token = token;
+      }
+
+      public void write_args(org.apache.thrift.protocol.TProtocol prot) throws org.apache.thrift.TException {
+        prot.writeMessageBegin(new org.apache.thrift.protocol.TMessage("getUserFromToken", org.apache.thrift.protocol.TMessageType.CALL, 0));
+        getUserFromToken_args args = new getUserFromToken_args();
+        args.setToken(token);
+        args.write(prot);
+        prot.writeMessageEnd();
+      }
+
+      public UserInfo getResult() throws InvalidTokenException, org.apache.thrift.TException {
+        if (getState() != org.apache.thrift.async.TAsyncMethodCall.State.RESPONSE_READ) {
+          throw new IllegalStateException("Method call not finished!");
+        }
+        org.apache.thrift.transport.TMemoryInputTransport memoryTransport = new org.apache.thrift.transport.TMemoryInputTransport(getFrameBuffer().array());
+        org.apache.thrift.protocol.TProtocol prot = client.getProtocolFactory().getProtocol(memoryTransport);
+        return (new Client(prot)).recv_getUserFromToken();
+      }
+    }
+
+  }
+
+  public static class Processor<I extends Iface> extends org.apache.thrift.TBaseProcessor<I> implements org.apache.thrift.TProcessor {
+    private static final Logger LOGGER = LoggerFactory.getLogger(Processor.class.getName());
+    public Processor(I iface) {
+      super(iface, getProcessMap(new HashMap<String, org.apache.thrift.ProcessFunction<I, ? extends org.apache.thrift.TBase>>()));
+    }
+
+    protected Processor(I iface, Map<String,  org.apache.thrift.ProcessFunction<I, ? extends  org.apache.thrift.TBase>> processMap) {
+      super(iface, getProcessMap(processMap));
+    }
+
+    private static <I extends Iface> Map<String,  org.apache.thrift.ProcessFunction<I, ? extends  org.apache.thrift.TBase>> getProcessMap(Map<String,  org.apache.thrift.ProcessFunction<I, ? extends  org.apache.thrift.TBase>> processMap) {
+      processMap.put("ping", new ping());
+      processMap.put("authenticate", new authenticate());
+      processMap.put("getUserFromToken", new getUserFromToken());
+      return processMap;
+    }
+
+    public static class ping<I extends Iface> extends org.apache.thrift.ProcessFunction<I, ping_args> {
+      public ping() {
+        super("ping");
+      }
+
+      public ping_args getEmptyArgsInstance() {
+        return new ping_args();
+      }
+
+      protected boolean isOneway() {
+        return false;
+      }
+
+      public ping_result getResult(I iface, ping_args args) throws org.apache.thrift.TException {
+        ping_result result = new ping_result();
+        result.success = iface.ping();
+        result.setSuccessIsSet(true);
+        return result;
+      }
+    }
+
+    public static class authenticate<I extends Iface> extends org.apache.thrift.ProcessFunction<I, authenticate_args> {
+      public authenticate() {
+        super("authenticate");
+      }
+
+      public authenticate_args getEmptyArgsInstance() {
+        return new authenticate_args();
+      }
+
+      protected boolean isOneway() {
+        return false;
+      }
+
+      public authenticate_result getResult(I iface, authenticate_args args) throws org.apache.thrift.TException {
+        authenticate_result result = new authenticate_result();
+        try {
+          result.success = iface.authenticate(args.username, args.password);
+        } catch (AuthenticationException failure) {
+          result.failure = failure;
+        }
+        return result;
+      }
+    }
+
+    public static class getUserFromToken<I extends Iface> extends org.apache.thrift.ProcessFunction<I, getUserFromToken_args> {
+      public getUserFromToken() {
+        super("getUserFromToken");
+      }
+
+      public getUserFromToken_args getEmptyArgsInstance() {
+        return new getUserFromToken_args();
+      }
+
+      protected boolean isOneway() {
+        return false;
+      }
+
+      public getUserFromToken_result getResult(I iface, getUserFromToken_args args) throws org.apache.thrift.TException {
+        getUserFromToken_result result = new getUserFromToken_result();
+        try {
+          result.success = iface.getUserFromToken(args.token);
+        } catch (InvalidTokenException failure) {
+          result.failure = failure;
+        }
+        return result;
+      }
+    }
+
+  }
+
+  public static class AsyncProcessor<I extends AsyncIface> extends org.apache.thrift.TBaseAsyncProcessor<I> {
+    private static final Logger LOGGER = LoggerFactory.getLogger(AsyncProcessor.class.getName());
+    public AsyncProcessor(I iface) {
+      super(iface, getProcessMap(new HashMap<String, org.apache.thrift.AsyncProcessFunction<I, ? extends org.apache.thrift.TBase, ?>>()));
+    }
+
+    protected AsyncProcessor(I iface, Map<String,  org.apache.thrift.AsyncProcessFunction<I, ? extends  org.apache.thrift.TBase, ?>> processMap) {
+      super(iface, getProcessMap(processMap));
+    }
+
+    private static <I extends AsyncIface> Map<String,  org.apache.thrift.AsyncProcessFunction<I, ? extends  org.apache.thrift.TBase,?>> getProcessMap(Map<String,  org.apache.thrift.AsyncProcessFunction<I, ? extends  org.apache.thrift.TBase, ?>> processMap) {
+      processMap.put("ping", new ping());
+      processMap.put("authenticate", new authenticate());
+      processMap.put("getUserFromToken", new getUserFromToken());
+      return processMap;
+    }
+
+    public static class ping<I extends AsyncIface> extends org.apache.thrift.AsyncProcessFunction<I, ping_args, Boolean> {
+      public ping() {
+        super("ping");
+      }
+
+      public ping_args getEmptyArgsInstance() {
+        return new ping_args();
+      }
+
+      public AsyncMethodCallback<Boolean> getResultHandler(final AsyncFrameBuffer fb, final int seqid) {
+        final org.apache.thrift.AsyncProcessFunction fcall = this;
+        return new AsyncMethodCallback<Boolean>() { 
+          public void onComplete(Boolean o) {
+            ping_result result = new ping_result();
+            result.success = o;
+            result.setSuccessIsSet(true);
+            try {
+              fcall.sendResponse(fb,result, org.apache.thrift.protocol.TMessageType.REPLY,seqid);
+              return;
+            } catch (Exception e) {
+              LOGGER.error("Exception writing to internal frame buffer", e);
+            }
+            fb.close();
+          }
+          public void onError(Exception e) {
+            byte msgType = org.apache.thrift.protocol.TMessageType.REPLY;
+            org.apache.thrift.TBase msg;
+            ping_result result = new ping_result();
+            {
+              msgType = org.apache.thrift.protocol.TMessageType.EXCEPTION;
+              msg = (org.apache.thrift.TBase)new org.apache.thrift.TApplicationException(org.apache.thrift.TApplicationException.INTERNAL_ERROR, e.getMessage());
+            }
+            try {
+              fcall.sendResponse(fb,msg,msgType,seqid);
+              return;
+            } catch (Exception ex) {
+              LOGGER.error("Exception writing to internal frame buffer", ex);
+            }
+            fb.close();
+          }
+        };
+      }
+
+      protected boolean isOneway() {
+        return false;
+      }
+
+      public void start(I iface, ping_args args, org.apache.thrift.async.AsyncMethodCallback<Boolean> resultHandler) throws TException {
+        iface.ping(resultHandler);
+      }
+    }
+
+    public static class authenticate<I extends AsyncIface> extends org.apache.thrift.AsyncProcessFunction<I, authenticate_args, SessionData> {
+      public authenticate() {
+        super("authenticate");
+      }
+
+      public authenticate_args getEmptyArgsInstance() {
+        return new authenticate_args();
+      }
+
+      public AsyncMethodCallback<SessionData> getResultHandler(final AsyncFrameBuffer fb, final int seqid) {
+        final org.apache.thrift.AsyncProcessFunction fcall = this;
+        return new AsyncMethodCallback<SessionData>() { 
+          public void onComplete(SessionData o) {
+            authenticate_result result = new authenticate_result();
+            result.success = o;
+            try {
+              fcall.sendResponse(fb,result, org.apache.thrift.protocol.TMessageType.REPLY,seqid);
+              return;
+            } catch (Exception e) {
+              LOGGER.error("Exception writing to internal frame buffer", e);
+            }
+            fb.close();
+          }
+          public void onError(Exception e) {
+            byte msgType = org.apache.thrift.protocol.TMessageType.REPLY;
+            org.apache.thrift.TBase msg;
+            authenticate_result result = new authenticate_result();
+            if (e instanceof AuthenticationException) {
+                        result.failure = (AuthenticationException) e;
+                        result.setFailureIsSet(true);
+                        msg = result;
+            }
+             else 
+            {
+              msgType = org.apache.thrift.protocol.TMessageType.EXCEPTION;
+              msg = (org.apache.thrift.TBase)new org.apache.thrift.TApplicationException(org.apache.thrift.TApplicationException.INTERNAL_ERROR, e.getMessage());
+            }
+            try {
+              fcall.sendResponse(fb,msg,msgType,seqid);
+              return;
+            } catch (Exception ex) {
+              LOGGER.error("Exception writing to internal frame buffer", ex);
+            }
+            fb.close();
+          }
+        };
+      }
+
+      protected boolean isOneway() {
+        return false;
+      }
+
+      public void start(I iface, authenticate_args args, org.apache.thrift.async.AsyncMethodCallback<SessionData> resultHandler) throws TException {
+        iface.authenticate(args.username, args.password,resultHandler);
+      }
+    }
+
+    public static class getUserFromToken<I extends AsyncIface> extends org.apache.thrift.AsyncProcessFunction<I, getUserFromToken_args, UserInfo> {
+      public getUserFromToken() {
+        super("getUserFromToken");
+      }
+
+      public getUserFromToken_args getEmptyArgsInstance() {
+        return new getUserFromToken_args();
+      }
+
+      public AsyncMethodCallback<UserInfo> getResultHandler(final AsyncFrameBuffer fb, final int seqid) {
+        final org.apache.thrift.AsyncProcessFunction fcall = this;
+        return new AsyncMethodCallback<UserInfo>() { 
+          public void onComplete(UserInfo o) {
+            getUserFromToken_result result = new getUserFromToken_result();
+            result.success = o;
+            try {
+              fcall.sendResponse(fb,result, org.apache.thrift.protocol.TMessageType.REPLY,seqid);
+              return;
+            } catch (Exception e) {
+              LOGGER.error("Exception writing to internal frame buffer", e);
+            }
+            fb.close();
+          }
+          public void onError(Exception e) {
+            byte msgType = org.apache.thrift.protocol.TMessageType.REPLY;
+            org.apache.thrift.TBase msg;
+            getUserFromToken_result result = new getUserFromToken_result();
+            if (e instanceof InvalidTokenException) {
+                        result.failure = (InvalidTokenException) e;
+                        result.setFailureIsSet(true);
+                        msg = result;
+            }
+             else 
+            {
+              msgType = org.apache.thrift.protocol.TMessageType.EXCEPTION;
+              msg = (org.apache.thrift.TBase)new org.apache.thrift.TApplicationException(org.apache.thrift.TApplicationException.INTERNAL_ERROR, e.getMessage());
+            }
+            try {
+              fcall.sendResponse(fb,msg,msgType,seqid);
+              return;
+            } catch (Exception ex) {
+              LOGGER.error("Exception writing to internal frame buffer", ex);
+            }
+            fb.close();
+          }
+        };
+      }
+
+      protected boolean isOneway() {
+        return false;
+      }
+
+      public void start(I iface, getUserFromToken_args args, org.apache.thrift.async.AsyncMethodCallback<UserInfo> resultHandler) throws TException {
+        iface.getUserFromToken(args.token,resultHandler);
+      }
+    }
+
+  }
+
+  public static class ping_args implements org.apache.thrift.TBase<ping_args, ping_args._Fields>, java.io.Serializable, Cloneable, Comparable<ping_args>   {
+    private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("ping_args");
+
+
+    private static final Map<Class<? extends IScheme>, SchemeFactory> schemes = new HashMap<Class<? extends IScheme>, SchemeFactory>();
+    static {
+      schemes.put(StandardScheme.class, new ping_argsStandardSchemeFactory());
+      schemes.put(TupleScheme.class, new ping_argsTupleSchemeFactory());
+    }
+
+
+    /** The set of fields this struct contains, along with convenience methods for finding and manipulating them. */
+    public enum _Fields implements org.apache.thrift.TFieldIdEnum {
+;
+
+      private static final Map<String, _Fields> byName = new HashMap<String, _Fields>();
+
+      static {
+        for (_Fields field : EnumSet.allOf(_Fields.class)) {
+          byName.put(field.getFieldName(), field);
+        }
+      }
+
+      /**
+       * Find the _Fields constant that matches fieldId, or null if its not found.
+       */
+      public static _Fields findByThriftId(int fieldId) {
+        switch(fieldId) {
+          default:
+            return null;
+        }
+      }
+
+      /**
+       * Find the _Fields constant that matches fieldId, throwing an exception
+       * if it is not found.
+       */
+      public static _Fields findByThriftIdOrThrow(int fieldId) {
+        _Fields fields = findByThriftId(fieldId);
+        if (fields == null) throw new IllegalArgumentException("Field " + fieldId + " doesn't exist!");
+        return fields;
+      }
+
+      /**
+       * Find the _Fields constant that matches name, or null if its not found.
+       */
+      public static _Fields findByName(String name) {
+        return byName.get(name);
+      }
+
+      private final short _thriftId;
+      private final String _fieldName;
+
+      _Fields(short thriftId, String fieldName) {
+        _thriftId = thriftId;
+        _fieldName = fieldName;
+      }
+
+      public short getThriftFieldId() {
+        return _thriftId;
+      }
+
+      public String getFieldName() {
+        return _fieldName;
+      }
+    }
+    public static final Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> metaDataMap;
+    static {
+      Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> tmpMap = new EnumMap<_Fields, org.apache.thrift.meta_data.FieldMetaData>(_Fields.class);
+      metaDataMap = Collections.unmodifiableMap(tmpMap);
+      org.apache.thrift.meta_data.FieldMetaData.addStructMetaDataMap(ping_args.class, metaDataMap);
+    }
+
+    public ping_args() {
+    }
+
+    /**
+     * Performs a deep copy on <i>other</i>.
+     */
+    public ping_args(ping_args other) {
+    }
+
+    public ping_args deepCopy() {
+      return new ping_args(this);
+    }
+
+    @Override
+    public void clear() {
+    }
+
+    public void setFieldValue(_Fields field, Object value) {
+      switch (field) {
+      }
+    }
+
+    public Object getFieldValue(_Fields field) {
+      switch (field) {
+      }
+      throw new IllegalStateException();
+    }
+
+    /** Returns true if field corresponding to fieldID is set (has been assigned a value) and false otherwise */
+    public boolean isSet(_Fields field) {
+      if (field == null) {
+        throw new IllegalArgumentException();
+      }
+
+      switch (field) {
+      }
+      throw new IllegalStateException();
+    }
+
+    @Override
+    public boolean equals(Object that) {
+      if (that == null)
+        return false;
+      if (that instanceof ping_args)
+        return this.equals((ping_args)that);
+      return false;
+    }
+
+    public boolean equals(ping_args that) {
+      if (that == null)
+        return false;
+
+      return true;
+    }
+
+    @Override
+    public int hashCode() {
+      return 0;
+    }
+
+    @Override
+    public int compareTo(ping_args other) {
+      if (!getClass().equals(other.getClass())) {
+        return getClass().getName().compareTo(other.getClass().getName());
+      }
+
+      int lastComparison = 0;
+
+      return 0;
+    }
+
+    public _Fields fieldForId(int fieldId) {
+      return _Fields.findByThriftId(fieldId);
+    }
+
+    public void read(org.apache.thrift.protocol.TProtocol iprot) throws org.apache.thrift.TException {
+      schemes.get(iprot.getScheme()).getScheme().read(iprot, this);
+    }
+
+    public void write(org.apache.thrift.protocol.TProtocol oprot) throws org.apache.thrift.TException {
+      schemes.get(oprot.getScheme()).getScheme().write(oprot, this);
+    }
+
+    @Override
+    public String toString() {
+      StringBuilder sb = new StringBuilder("ping_args(");
+      boolean first = true;
+
+      sb.append(")");
+      return sb.toString();
+    }
+
+    public void validate() throws org.apache.thrift.TException {
+      // check for required fields
+      // check for sub-struct validity
+    }
+
+    private void writeObject(java.io.ObjectOutputStream out) throws java.io.IOException {
+      try {
+        write(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(out)));
+      } catch (org.apache.thrift.TException te) {
+        throw new java.io.IOException(te);
+      }
+    }
+
+    private void readObject(java.io.ObjectInputStream in) throws java.io.IOException, ClassNotFoundException {
+      try {
+        read(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(in)));
+      } catch (org.apache.thrift.TException te) {
+        throw new java.io.IOException(te);
+      }
+    }
+
+    private static class ping_argsStandardSchemeFactory implements SchemeFactory {
+      public ping_argsStandardScheme getScheme() {
+        return new ping_argsStandardScheme();
+      }
+    }
+
+    private static class ping_argsStandardScheme extends StandardScheme<ping_args> {
+
+      public void read(org.apache.thrift.protocol.TProtocol iprot, ping_args struct) throws org.apache.thrift.TException {
+        org.apache.thrift.protocol.TField schemeField;
+        iprot.readStructBegin();
+        while (true)
+        {
+          schemeField = iprot.readFieldBegin();
+          if (schemeField.type == org.apache.thrift.protocol.TType.STOP) { 
+            break;
+          }
+          switch (schemeField.id) {
+            default:
+              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+          }
+          iprot.readFieldEnd();
+        }
+        iprot.readStructEnd();
+
+        // check for required fields of primitive type, which can't be checked in the validate method
+        struct.validate();
+      }
+
+      public void write(org.apache.thrift.protocol.TProtocol oprot, ping_args struct) throws org.apache.thrift.TException {
+        struct.validate();
+
+        oprot.writeStructBegin(STRUCT_DESC);
+        oprot.writeFieldStop();
+        oprot.writeStructEnd();
+      }
+
+    }
+
+    private static class ping_argsTupleSchemeFactory implements SchemeFactory {
+      public ping_argsTupleScheme getScheme() {
+        return new ping_argsTupleScheme();
+      }
+    }
+
+    private static class ping_argsTupleScheme extends TupleScheme<ping_args> {
+
+      @Override
+      public void write(org.apache.thrift.protocol.TProtocol prot, ping_args struct) throws org.apache.thrift.TException {
+        TTupleProtocol oprot = (TTupleProtocol) prot;
+      }
+
+      @Override
+      public void read(org.apache.thrift.protocol.TProtocol prot, ping_args struct) throws org.apache.thrift.TException {
+        TTupleProtocol iprot = (TTupleProtocol) prot;
+      }
+    }
+
+  }
+
+  public static class ping_result implements org.apache.thrift.TBase<ping_result, ping_result._Fields>, java.io.Serializable, Cloneable, Comparable<ping_result>   {
+    private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("ping_result");
+
+    private static final org.apache.thrift.protocol.TField SUCCESS_FIELD_DESC = new org.apache.thrift.protocol.TField("success", org.apache.thrift.protocol.TType.BOOL, (short)0);
+
+    private static final Map<Class<? extends IScheme>, SchemeFactory> schemes = new HashMap<Class<? extends IScheme>, SchemeFactory>();
+    static {
+      schemes.put(StandardScheme.class, new ping_resultStandardSchemeFactory());
+      schemes.put(TupleScheme.class, new ping_resultTupleSchemeFactory());
+    }
+
+    public boolean success; // required
+
+    /** The set of fields this struct contains, along with convenience methods for finding and manipulating them. */
+    public enum _Fields implements org.apache.thrift.TFieldIdEnum {
+      SUCCESS((short)0, "success");
+
+      private static final Map<String, _Fields> byName = new HashMap<String, _Fields>();
+
+      static {
+        for (_Fields field : EnumSet.allOf(_Fields.class)) {
+          byName.put(field.getFieldName(), field);
+        }
+      }
+
+      /**
+       * Find the _Fields constant that matches fieldId, or null if its not found.
+       */
+      public static _Fields findByThriftId(int fieldId) {
+        switch(fieldId) {
+          case 0: // SUCCESS
+            return SUCCESS;
+          default:
+            return null;
+        }
+      }
+
+      /**
+       * Find the _Fields constant that matches fieldId, throwing an exception
+       * if it is not found.
+       */
+      public static _Fields findByThriftIdOrThrow(int fieldId) {
+        _Fields fields = findByThriftId(fieldId);
+        if (fields == null) throw new IllegalArgumentException("Field " + fieldId + " doesn't exist!");
+        return fields;
+      }
+
+      /**
+       * Find the _Fields constant that matches name, or null if its not found.
+       */
+      public static _Fields findByName(String name) {
+        return byName.get(name);
+      }
+
+      private final short _thriftId;
+      private final String _fieldName;
+
+      _Fields(short thriftId, String fieldName) {
+        _thriftId = thriftId;
+        _fieldName = fieldName;
+      }
+
+      public short getThriftFieldId() {
+        return _thriftId;
+      }
+
+      public String getFieldName() {
+        return _fieldName;
+      }
+    }
+
+    // isset id assignments
+    private static final int __SUCCESS_ISSET_ID = 0;
+    private byte __isset_bitfield = 0;
+    public static final Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> metaDataMap;
+    static {
+      Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> tmpMap = new EnumMap<_Fields, org.apache.thrift.meta_data.FieldMetaData>(_Fields.class);
+      tmpMap.put(_Fields.SUCCESS, new org.apache.thrift.meta_data.FieldMetaData("success", org.apache.thrift.TFieldRequirementType.DEFAULT, 
+          new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.BOOL)));
+      metaDataMap = Collections.unmodifiableMap(tmpMap);
+      org.apache.thrift.meta_data.FieldMetaData.addStructMetaDataMap(ping_result.class, metaDataMap);
+    }
+
+    public ping_result() {
+    }
+
+    public ping_result(
+      boolean success)
+    {
+      this();
+      this.success = success;
+      setSuccessIsSet(true);
+    }
+
+    /**
+     * Performs a deep copy on <i>other</i>.
+     */
+    public ping_result(ping_result other) {
+      __isset_bitfield = other.__isset_bitfield;
+      this.success = other.success;
+    }
+
+    public ping_result deepCopy() {
+      return new ping_result(this);
+    }
+
+    @Override
+    public void clear() {
+      setSuccessIsSet(false);
+      this.success = false;
+    }
+
+    public boolean isSuccess() {
+      return this.success;
+    }
+
+    public ping_result setSuccess(boolean success) {
+      this.success = success;
+      setSuccessIsSet(true);
+      return this;
+    }
+
+    public void unsetSuccess() {
+      __isset_bitfield = EncodingUtils.clearBit(__isset_bitfield, __SUCCESS_ISSET_ID);
+    }
+
+    /** Returns true if field success is set (has been assigned a value) and false otherwise */
+    public boolean isSetSuccess() {
+      return EncodingUtils.testBit(__isset_bitfield, __SUCCESS_ISSET_ID);
+    }
+
+    public void setSuccessIsSet(boolean value) {
+      __isset_bitfield = EncodingUtils.setBit(__isset_bitfield, __SUCCESS_ISSET_ID, value);
+    }
+
+    public void setFieldValue(_Fields field, Object value) {
+      switch (field) {
+      case SUCCESS:
+        if (value == null) {
+          unsetSuccess();
+        } else {
+          setSuccess((Boolean)value);
+        }
+        break;
+
+      }
+    }
+
+    public Object getFieldValue(_Fields field) {
+      switch (field) {
+      case SUCCESS:
+        return Boolean.valueOf(isSuccess());
+
+      }
+      throw new IllegalStateException();
+    }
+
+    /** Returns true if field corresponding to fieldID is set (has been assigned a value) and false otherwise */
+    public boolean isSet(_Fields field) {
+      if (field == null) {
+        throw new IllegalArgumentException();
+      }
+
+      switch (field) {
+      case SUCCESS:
+        return isSetSuccess();
+      }
+      throw new IllegalStateException();
+    }
+
+    @Override
+    public boolean equals(Object that) {
+      if (that == null)
+        return false;
+      if (that instanceof ping_result)
+        return this.equals((ping_result)that);
+      return false;
+    }
+
+    public boolean equals(ping_result that) {
+      if (that == null)
+        return false;
+
+      boolean this_present_success = true;
+      boolean that_present_success = true;
+      if (this_present_success || that_present_success) {
+        if (!(this_present_success && that_present_success))
+          return false;
+        if (this.success != that.success)
+          return false;
+      }
+
+      return true;
+    }
+
+    @Override
+    public int hashCode() {
+      return 0;
+    }
+
+    @Override
+    public int compareTo(ping_result other) {
+      if (!getClass().equals(other.getClass())) {
+        return getClass().getName().compareTo(other.getClass().getName());
+      }
+
+      int lastComparison = 0;
+
+      lastComparison = Boolean.valueOf(isSetSuccess()).compareTo(other.isSetSuccess());
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+      if (isSetSuccess()) {
+        lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.success, other.success);
+        if (lastComparison != 0) {
+          return lastComparison;
+        }
+      }
+      return 0;
+    }
+
+    public _Fields fieldForId(int fieldId) {
+      return _Fields.findByThriftId(fieldId);
+    }
+
+    public void read(org.apache.thrift.protocol.TProtocol iprot) throws org.apache.thrift.TException {
+      schemes.get(iprot.getScheme()).getScheme().read(iprot, this);
+    }
+
+    public void write(org.apache.thrift.protocol.TProtocol oprot) throws org.apache.thrift.TException {
+      schemes.get(oprot.getScheme()).getScheme().write(oprot, this);
+      }
+
+    @Override
+    public String toString() {
+      StringBuilder sb = new StringBuilder("ping_result(");
+      boolean first = true;
+
+      sb.append("success:");
+      sb.append(this.success);
+      first = false;
+      sb.append(")");
+      return sb.toString();
+    }
+
+    public void validate() throws org.apache.thrift.TException {
+      // check for required fields
+      // check for sub-struct validity
+    }
+
+    private void writeObject(java.io.ObjectOutputStream out) throws java.io.IOException {
+      try {
+        write(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(out)));
+      } catch (org.apache.thrift.TException te) {
+        throw new java.io.IOException(te);
+      }
+    }
+
+    private void readObject(java.io.ObjectInputStream in) throws java.io.IOException, ClassNotFoundException {
+      try {
+        // it doesn't seem like you should have to do this, but java serialization is wacky, and doesn't call the default constructor.
+        __isset_bitfield = 0;
+        read(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(in)));
+      } catch (org.apache.thrift.TException te) {
+        throw new java.io.IOException(te);
+      }
+    }
+
+    private static class ping_resultStandardSchemeFactory implements SchemeFactory {
+      public ping_resultStandardScheme getScheme() {
+        return new ping_resultStandardScheme();
+      }
+    }
+
+    private static class ping_resultStandardScheme extends StandardScheme<ping_result> {
+
+      public void read(org.apache.thrift.protocol.TProtocol iprot, ping_result struct) throws org.apache.thrift.TException {
+        org.apache.thrift.protocol.TField schemeField;
+        iprot.readStructBegin();
+        while (true)
+        {
+          schemeField = iprot.readFieldBegin();
+          if (schemeField.type == org.apache.thrift.protocol.TType.STOP) { 
+            break;
+          }
+          switch (schemeField.id) {
+            case 0: // SUCCESS
+              if (schemeField.type == org.apache.thrift.protocol.TType.BOOL) {
+                struct.success = iprot.readBool();
+                struct.setSuccessIsSet(true);
+              } else { 
+                org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+              }
+              break;
+            default:
+              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+          }
+          iprot.readFieldEnd();
+        }
+        iprot.readStructEnd();
+
+        // check for required fields of primitive type, which can't be checked in the validate method
+        struct.validate();
+      }
+
+      public void write(org.apache.thrift.protocol.TProtocol oprot, ping_result struct) throws org.apache.thrift.TException {
+        struct.validate();
+
+        oprot.writeStructBegin(STRUCT_DESC);
+        if (struct.isSetSuccess()) {
+          oprot.writeFieldBegin(SUCCESS_FIELD_DESC);
+          oprot.writeBool(struct.success);
+          oprot.writeFieldEnd();
+        }
+        oprot.writeFieldStop();
+        oprot.writeStructEnd();
+      }
+
+    }
+
+    private static class ping_resultTupleSchemeFactory implements SchemeFactory {
+      public ping_resultTupleScheme getScheme() {
+        return new ping_resultTupleScheme();
+      }
+    }
+
+    private static class ping_resultTupleScheme extends TupleScheme<ping_result> {
+
+      @Override
+      public void write(org.apache.thrift.protocol.TProtocol prot, ping_result struct) throws org.apache.thrift.TException {
+        TTupleProtocol oprot = (TTupleProtocol) prot;
+        BitSet optionals = new BitSet();
+        if (struct.isSetSuccess()) {
+          optionals.set(0);
+        }
+        oprot.writeBitSet(optionals, 1);
+        if (struct.isSetSuccess()) {
+          oprot.writeBool(struct.success);
+        }
+      }
+
+      @Override
+      public void read(org.apache.thrift.protocol.TProtocol prot, ping_result struct) throws org.apache.thrift.TException {
+        TTupleProtocol iprot = (TTupleProtocol) prot;
+        BitSet incoming = iprot.readBitSet(1);
+        if (incoming.get(0)) {
+          struct.success = iprot.readBool();
+          struct.setSuccessIsSet(true);
+        }
+      }
+    }
+
+  }
+
+  public static class authenticate_args implements org.apache.thrift.TBase<authenticate_args, authenticate_args._Fields>, java.io.Serializable, Cloneable, Comparable<authenticate_args>   {
+    private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("authenticate_args");
+
+    private static final org.apache.thrift.protocol.TField USERNAME_FIELD_DESC = new org.apache.thrift.protocol.TField("username", org.apache.thrift.protocol.TType.STRING, (short)1);
+    private static final org.apache.thrift.protocol.TField PASSWORD_FIELD_DESC = new org.apache.thrift.protocol.TField("password", org.apache.thrift.protocol.TType.STRING, (short)2);
+
+    private static final Map<Class<? extends IScheme>, SchemeFactory> schemes = new HashMap<Class<? extends IScheme>, SchemeFactory>();
+    static {
+      schemes.put(StandardScheme.class, new authenticate_argsStandardSchemeFactory());
+      schemes.put(TupleScheme.class, new authenticate_argsTupleSchemeFactory());
+    }
+
+    public String username; // required
+    public String password; // required
+
+    /** The set of fields this struct contains, along with convenience methods for finding and manipulating them. */
+    public enum _Fields implements org.apache.thrift.TFieldIdEnum {
+      USERNAME((short)1, "username"),
+      PASSWORD((short)2, "password");
+
+      private static final Map<String, _Fields> byName = new HashMap<String, _Fields>();
+
+      static {
+        for (_Fields field : EnumSet.allOf(_Fields.class)) {
+          byName.put(field.getFieldName(), field);
+        }
+      }
+
+      /**
+       * Find the _Fields constant that matches fieldId, or null if its not found.
+       */
+      public static _Fields findByThriftId(int fieldId) {
+        switch(fieldId) {
+          case 1: // USERNAME
+            return USERNAME;
+          case 2: // PASSWORD
+            return PASSWORD;
+          default:
+            return null;
+        }
+      }
+
+      /**
+       * Find the _Fields constant that matches fieldId, throwing an exception
+       * if it is not found.
+       */
+      public static _Fields findByThriftIdOrThrow(int fieldId) {
+        _Fields fields = findByThriftId(fieldId);
+        if (fields == null) throw new IllegalArgumentException("Field " + fieldId + " doesn't exist!");
+        return fields;
+      }
+
+      /**
+       * Find the _Fields constant that matches name, or null if its not found.
+       */
+      public static _Fields findByName(String name) {
+        return byName.get(name);
+      }
+
+      private final short _thriftId;
+      private final String _fieldName;
+
+      _Fields(short thriftId, String fieldName) {
+        _thriftId = thriftId;
+        _fieldName = fieldName;
+      }
+
+      public short getThriftFieldId() {
+        return _thriftId;
+      }
+
+      public String getFieldName() {
+        return _fieldName;
+      }
+    }
+
+    // isset id assignments
+    public static final Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> metaDataMap;
+    static {
+      Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> tmpMap = new EnumMap<_Fields, org.apache.thrift.meta_data.FieldMetaData>(_Fields.class);
+      tmpMap.put(_Fields.USERNAME, new org.apache.thrift.meta_data.FieldMetaData("username", org.apache.thrift.TFieldRequirementType.DEFAULT, 
+          new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.STRING)));
+      tmpMap.put(_Fields.PASSWORD, new org.apache.thrift.meta_data.FieldMetaData("password", org.apache.thrift.TFieldRequirementType.DEFAULT, 
+          new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.STRING)));
+      metaDataMap = Collections.unmodifiableMap(tmpMap);
+      org.apache.thrift.meta_data.FieldMetaData.addStructMetaDataMap(authenticate_args.class, metaDataMap);
+    }
+
+    public authenticate_args() {
+    }
+
+    public authenticate_args(
+      String username,
+      String password)
+    {
+      this();
+      this.username = username;
+      this.password = password;
+    }
+
+    /**
+     * Performs a deep copy on <i>other</i>.
+     */
+    public authenticate_args(authenticate_args other) {
+      if (other.isSetUsername()) {
+        this.username = other.username;
+      }
+      if (other.isSetPassword()) {
+        this.password = other.password;
+      }
+    }
+
+    public authenticate_args deepCopy() {
+      return new authenticate_args(this);
+    }
+
+    @Override
+    public void clear() {
+      this.username = null;
+      this.password = null;
+    }
+
+    public String getUsername() {
+      return this.username;
+    }
+
+    public authenticate_args setUsername(String username) {
+      this.username = username;
+      return this;
+    }
+
+    public void unsetUsername() {
+      this.username = null;
+    }
+
+    /** Returns true if field username is set (has been assigned a value) and false otherwise */
+    public boolean isSetUsername() {
+      return this.username != null;
+    }
+
+    public void setUsernameIsSet(boolean value) {
+      if (!value) {
+        this.username = null;
+      }
+    }
+
+    public String getPassword() {
+      return this.password;
+    }
+
+    public authenticate_args setPassword(String password) {
+      this.password = password;
+      return this;
+    }
+
+    public void unsetPassword() {
+      this.password = null;
+    }
+
+    /** Returns true if field password is set (has been assigned a value) and false otherwise */
+    public boolean isSetPassword() {
+      return this.password != null;
+    }
+
+    public void setPasswordIsSet(boolean value) {
+      if (!value) {
+        this.password = null;
+      }
+    }
+
+    public void setFieldValue(_Fields field, Object value) {
+      switch (field) {
+      case USERNAME:
+        if (value == null) {
+          unsetUsername();
+        } else {
+          setUsername((String)value);
+        }
+        break;
+
+      case PASSWORD:
+        if (value == null) {
+          unsetPassword();
+        } else {
+          setPassword((String)value);
+        }
+        break;
+
+      }
+    }
+
+    public Object getFieldValue(_Fields field) {
+      switch (field) {
+      case USERNAME:
+        return getUsername();
+
+      case PASSWORD:
+        return getPassword();
+
+      }
+      throw new IllegalStateException();
+    }
+
+    /** Returns true if field corresponding to fieldID is set (has been assigned a value) and false otherwise */
+    public boolean isSet(_Fields field) {
+      if (field == null) {
+        throw new IllegalArgumentException();
+      }
+
+      switch (field) {
+      case USERNAME:
+        return isSetUsername();
+      case PASSWORD:
+        return isSetPassword();
+      }
+      throw new IllegalStateException();
+    }
+
+    @Override
+    public boolean equals(Object that) {
+      if (that == null)
+        return false;
+      if (that instanceof authenticate_args)
+        return this.equals((authenticate_args)that);
+      return false;
+    }
+
+    public boolean equals(authenticate_args that) {
+      if (that == null)
+        return false;
+
+      boolean this_present_username = true && this.isSetUsername();
+      boolean that_present_username = true && that.isSetUsername();
+      if (this_present_username || that_present_username) {
+        if (!(this_present_username && that_present_username))
+          return false;
+        if (!this.username.equals(that.username))
+          return false;
+      }
+
+      boolean this_present_password = true && this.isSetPassword();
+      boolean that_present_password = true && that.isSetPassword();
+      if (this_present_password || that_present_password) {
+        if (!(this_present_password && that_present_password))
+          return false;
+        if (!this.password.equals(that.password))
+          return false;
+      }
+
+      return true;
+    }
+
+    @Override
+    public int hashCode() {
+      return 0;
+    }
+
+    @Override
+    public int compareTo(authenticate_args other) {
+      if (!getClass().equals(other.getClass())) {
+        return getClass().getName().compareTo(other.getClass().getName());
+      }
+
+      int lastComparison = 0;
+
+      lastComparison = Boolean.valueOf(isSetUsername()).compareTo(other.isSetUsername());
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+      if (isSetUsername()) {
+        lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.username, other.username);
+        if (lastComparison != 0) {
+          return lastComparison;
+        }
+      }
+      lastComparison = Boolean.valueOf(isSetPassword()).compareTo(other.isSetPassword());
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+      if (isSetPassword()) {
+        lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.password, other.password);
+        if (lastComparison != 0) {
+          return lastComparison;
+        }
+      }
+      return 0;
+    }
+
+    public _Fields fieldForId(int fieldId) {
+      return _Fields.findByThriftId(fieldId);
+    }
+
+    public void read(org.apache.thrift.protocol.TProtocol iprot) throws org.apache.thrift.TException {
+      schemes.get(iprot.getScheme()).getScheme().read(iprot, this);
+    }
+
+    public void write(org.apache.thrift.protocol.TProtocol oprot) throws org.apache.thrift.TException {
+      schemes.get(oprot.getScheme()).getScheme().write(oprot, this);
+    }
+
+    @Override
+    public String toString() {
+      StringBuilder sb = new StringBuilder("authenticate_args(");
+      boolean first = true;
+
+      sb.append("username:");
+      if (this.username == null) {
+        sb.append("null");
+      } else {
+        sb.append(this.username);
+      }
+      first = false;
+      if (!first) sb.append(", ");
+      sb.append("password:");
+      if (this.password == null) {
+        sb.append("null");
+      } else {
+        sb.append(this.password);
+      }
+      first = false;
+      sb.append(")");
+      return sb.toString();
+    }
+
+    public void validate() throws org.apache.thrift.TException {
+      // check for required fields
+      // check for sub-struct validity
+    }
+
+    private void writeObject(java.io.ObjectOutputStream out) throws java.io.IOException {
+      try {
+        write(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(out)));
+      } catch (org.apache.thrift.TException te) {
+        throw new java.io.IOException(te);
+      }
+    }
+
+    private void readObject(java.io.ObjectInputStream in) throws java.io.IOException, ClassNotFoundException {
+      try {
+        read(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(in)));
+      } catch (org.apache.thrift.TException te) {
+        throw new java.io.IOException(te);
+      }
+    }
+
+    private static class authenticate_argsStandardSchemeFactory implements SchemeFactory {
+      public authenticate_argsStandardScheme getScheme() {
+        return new authenticate_argsStandardScheme();
+      }
+    }
+
+    private static class authenticate_argsStandardScheme extends StandardScheme<authenticate_args> {
+
+      public void read(org.apache.thrift.protocol.TProtocol iprot, authenticate_args struct) throws org.apache.thrift.TException {
+        org.apache.thrift.protocol.TField schemeField;
+        iprot.readStructBegin();
+        while (true)
+        {
+          schemeField = iprot.readFieldBegin();
+          if (schemeField.type == org.apache.thrift.protocol.TType.STOP) { 
+            break;
+          }
+          switch (schemeField.id) {
+            case 1: // USERNAME
+              if (schemeField.type == org.apache.thrift.protocol.TType.STRING) {
+                struct.username = iprot.readString();
+                struct.setUsernameIsSet(true);
+              } else { 
+                org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+              }
+              break;
+            case 2: // PASSWORD
+              if (schemeField.type == org.apache.thrift.protocol.TType.STRING) {
+                struct.password = iprot.readString();
+                struct.setPasswordIsSet(true);
+              } else { 
+                org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+              }
+              break;
+            default:
+              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+          }
+          iprot.readFieldEnd();
+        }
+        iprot.readStructEnd();
+
+        // check for required fields of primitive type, which can't be checked in the validate method
+        struct.validate();
+      }
+
+      public void write(org.apache.thrift.protocol.TProtocol oprot, authenticate_args struct) throws org.apache.thrift.TException {
+        struct.validate();
+
+        oprot.writeStructBegin(STRUCT_DESC);
+        if (struct.username != null) {
+          oprot.writeFieldBegin(USERNAME_FIELD_DESC);
+          oprot.writeString(struct.username);
+          oprot.writeFieldEnd();
+        }
+        if (struct.password != null) {
+          oprot.writeFieldBegin(PASSWORD_FIELD_DESC);
+          oprot.writeString(struct.password);
+          oprot.writeFieldEnd();
+        }
+        oprot.writeFieldStop();
+        oprot.writeStructEnd();
+      }
+
+    }
+
+    private static class authenticate_argsTupleSchemeFactory implements SchemeFactory {
+      public authenticate_argsTupleScheme getScheme() {
+        return new authenticate_argsTupleScheme();
+      }
+    }
+
+    private static class authenticate_argsTupleScheme extends TupleScheme<authenticate_args> {
+
+      @Override
+      public void write(org.apache.thrift.protocol.TProtocol prot, authenticate_args struct) throws org.apache.thrift.TException {
+        TTupleProtocol oprot = (TTupleProtocol) prot;
+        BitSet optionals = new BitSet();
+        if (struct.isSetUsername()) {
+          optionals.set(0);
+        }
+        if (struct.isSetPassword()) {
+          optionals.set(1);
+        }
+        oprot.writeBitSet(optionals, 2);
+        if (struct.isSetUsername()) {
+          oprot.writeString(struct.username);
+        }
+        if (struct.isSetPassword()) {
+          oprot.writeString(struct.password);
+        }
+      }
+
+      @Override
+      public void read(org.apache.thrift.protocol.TProtocol prot, authenticate_args struct) throws org.apache.thrift.TException {
+        TTupleProtocol iprot = (TTupleProtocol) prot;
+        BitSet incoming = iprot.readBitSet(2);
+        if (incoming.get(0)) {
+          struct.username = iprot.readString();
+          struct.setUsernameIsSet(true);
+        }
+        if (incoming.get(1)) {
+          struct.password = iprot.readString();
+          struct.setPasswordIsSet(true);
+        }
+      }
+    }
+
+  }
+
+  public static class authenticate_result implements org.apache.thrift.TBase<authenticate_result, authenticate_result._Fields>, java.io.Serializable, Cloneable, Comparable<authenticate_result>   {
+    private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("authenticate_result");
+
+    private static final org.apache.thrift.protocol.TField SUCCESS_FIELD_DESC = new org.apache.thrift.protocol.TField("success", org.apache.thrift.protocol.TType.STRUCT, (short)0);
+    private static final org.apache.thrift.protocol.TField FAILURE_FIELD_DESC = new org.apache.thrift.protocol.TField("failure", org.apache.thrift.protocol.TType.STRUCT, (short)1);
+
+    private static final Map<Class<? extends IScheme>, SchemeFactory> schemes = new HashMap<Class<? extends IScheme>, SchemeFactory>();
+    static {
+      schemes.put(StandardScheme.class, new authenticate_resultStandardSchemeFactory());
+      schemes.put(TupleScheme.class, new authenticate_resultTupleSchemeFactory());
+    }
+
+    public SessionData success; // required
+    public AuthenticationException failure; // required
+
+    /** The set of fields this struct contains, along with convenience methods for finding and manipulating them. */
+    public enum _Fields implements org.apache.thrift.TFieldIdEnum {
+      SUCCESS((short)0, "success"),
+      FAILURE((short)1, "failure");
+
+      private static final Map<String, _Fields> byName = new HashMap<String, _Fields>();
+
+      static {
+        for (_Fields field : EnumSet.allOf(_Fields.class)) {
+          byName.put(field.getFieldName(), field);
+        }
+      }
+
+      /**
+       * Find the _Fields constant that matches fieldId, or null if its not found.
+       */
+      public static _Fields findByThriftId(int fieldId) {
+        switch(fieldId) {
+          case 0: // SUCCESS
+            return SUCCESS;
+          case 1: // FAILURE
+            return FAILURE;
+          default:
+            return null;
+        }
+      }
+
+      /**
+       * Find the _Fields constant that matches fieldId, throwing an exception
+       * if it is not found.
+       */
+      public static _Fields findByThriftIdOrThrow(int fieldId) {
+        _Fields fields = findByThriftId(fieldId);
+        if (fields == null) throw new IllegalArgumentException("Field " + fieldId + " doesn't exist!");
+        return fields;
+      }
+
+      /**
+       * Find the _Fields constant that matches name, or null if its not found.
+       */
+      public static _Fields findByName(String name) {
+        return byName.get(name);
+      }
+
+      private final short _thriftId;
+      private final String _fieldName;
+
+      _Fields(short thriftId, String fieldName) {
+        _thriftId = thriftId;
+        _fieldName = fieldName;
+      }
+
+      public short getThriftFieldId() {
+        return _thriftId;
+      }
+
+      public String getFieldName() {
+        return _fieldName;
+      }
+    }
+
+    // isset id assignments
+    public static final Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> metaDataMap;
+    static {
+      Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> tmpMap = new EnumMap<_Fields, org.apache.thrift.meta_data.FieldMetaData>(_Fields.class);
+      tmpMap.put(_Fields.SUCCESS, new org.apache.thrift.meta_data.FieldMetaData("success", org.apache.thrift.TFieldRequirementType.DEFAULT, 
+          new org.apache.thrift.meta_data.StructMetaData(org.apache.thrift.protocol.TType.STRUCT, SessionData.class)));
+      tmpMap.put(_Fields.FAILURE, new org.apache.thrift.meta_data.FieldMetaData("failure", org.apache.thrift.TFieldRequirementType.DEFAULT, 
+          new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.STRUCT)));
+      metaDataMap = Collections.unmodifiableMap(tmpMap);
+      org.apache.thrift.meta_data.FieldMetaData.addStructMetaDataMap(authenticate_result.class, metaDataMap);
+    }
+
+    public authenticate_result() {
+    }
+
+    public authenticate_result(
+      SessionData success,
+      AuthenticationException failure)
+    {
+      this();
+      this.success = success;
+      this.failure = failure;
+    }
+
+    /**
+     * Performs a deep copy on <i>other</i>.
+     */
+    public authenticate_result(authenticate_result other) {
+      if (other.isSetSuccess()) {
+        this.success = new SessionData(other.success);
+      }
+      if (other.isSetFailure()) {
+        this.failure = new AuthenticationException(other.failure);
+      }
+    }
+
+    public authenticate_result deepCopy() {
+      return new authenticate_result(this);
+    }
+
+    @Override
+    public void clear() {
+      this.success = null;
+      this.failure = null;
+    }
+
+    public SessionData getSuccess() {
+      return this.success;
+    }
+
+    public authenticate_result setSuccess(SessionData success) {
+      this.success = success;
+      return this;
+    }
+
+    public void unsetSuccess() {
+      this.success = null;
+    }
+
+    /** Returns true if field success is set (has been assigned a value) and false otherwise */
+    public boolean isSetSuccess() {
+      return this.success != null;
+    }
+
+    public void setSuccessIsSet(boolean value) {
+      if (!value) {
+        this.success = null;
+      }
+    }
+
+    public AuthenticationException getFailure() {
+      return this.failure;
+    }
+
+    public authenticate_result setFailure(AuthenticationException failure) {
+      this.failure = failure;
+      return this;
+    }
+
+    public void unsetFailure() {
+      this.failure = null;
+    }
+
+    /** Returns true if field failure is set (has been assigned a value) and false otherwise */
+    public boolean isSetFailure() {
+      return this.failure != null;
+    }
+
+    public void setFailureIsSet(boolean value) {
+      if (!value) {
+        this.failure = null;
+      }
+    }
+
+    public void setFieldValue(_Fields field, Object value) {
+      switch (field) {
+      case SUCCESS:
+        if (value == null) {
+          unsetSuccess();
+        } else {
+          setSuccess((SessionData)value);
+        }
+        break;
+
+      case FAILURE:
+        if (value == null) {
+          unsetFailure();
+        } else {
+          setFailure((AuthenticationException)value);
+        }
+        break;
+
+      }
+    }
+
+    public Object getFieldValue(_Fields field) {
+      switch (field) {
+      case SUCCESS:
+        return getSuccess();
+
+      case FAILURE:
+        return getFailure();
+
+      }
+      throw new IllegalStateException();
+    }
+
+    /** Returns true if field corresponding to fieldID is set (has been assigned a value) and false otherwise */
+    public boolean isSet(_Fields field) {
+      if (field == null) {
+        throw new IllegalArgumentException();
+      }
+
+      switch (field) {
+      case SUCCESS:
+        return isSetSuccess();
+      case FAILURE:
+        return isSetFailure();
+      }
+      throw new IllegalStateException();
+    }
+
+    @Override
+    public boolean equals(Object that) {
+      if (that == null)
+        return false;
+      if (that instanceof authenticate_result)
+        return this.equals((authenticate_result)that);
+      return false;
+    }
+
+    public boolean equals(authenticate_result that) {
+      if (that == null)
+        return false;
+
+      boolean this_present_success = true && this.isSetSuccess();
+      boolean that_present_success = true && that.isSetSuccess();
+      if (this_present_success || that_present_success) {
+        if (!(this_present_success && that_present_success))
+          return false;
+        if (!this.success.equals(that.success))
+          return false;
+      }
+
+      boolean this_present_failure = true && this.isSetFailure();
+      boolean that_present_failure = true && that.isSetFailure();
+      if (this_present_failure || that_present_failure) {
+        if (!(this_present_failure && that_present_failure))
+          return false;
+        if (!this.failure.equals(that.failure))
+          return false;
+      }
+
+      return true;
+    }
+
+    @Override
+    public int hashCode() {
+      return 0;
+    }
+
+    @Override
+    public int compareTo(authenticate_result other) {
+      if (!getClass().equals(other.getClass())) {
+        return getClass().getName().compareTo(other.getClass().getName());
+      }
+
+      int lastComparison = 0;
+
+      lastComparison = Boolean.valueOf(isSetSuccess()).compareTo(other.isSetSuccess());
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+      if (isSetSuccess()) {
+        lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.success, other.success);
+        if (lastComparison != 0) {
+          return lastComparison;
+        }
+      }
+      lastComparison = Boolean.valueOf(isSetFailure()).compareTo(other.isSetFailure());
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+      if (isSetFailure()) {
+        lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.failure, other.failure);
+        if (lastComparison != 0) {
+          return lastComparison;
+        }
+      }
+      return 0;
+    }
+
+    public _Fields fieldForId(int fieldId) {
+      return _Fields.findByThriftId(fieldId);
+    }
+
+    public void read(org.apache.thrift.protocol.TProtocol iprot) throws org.apache.thrift.TException {
+      schemes.get(iprot.getScheme()).getScheme().read(iprot, this);
+    }
+
+    public void write(org.apache.thrift.protocol.TProtocol oprot) throws org.apache.thrift.TException {
+      schemes.get(oprot.getScheme()).getScheme().write(oprot, this);
+      }
+
+    @Override
+    public String toString() {
+      StringBuilder sb = new StringBuilder("authenticate_result(");
+      boolean first = true;
+
+      sb.append("success:");
+      if (this.success == null) {
+        sb.append("null");
+      } else {
+        sb.append(this.success);
+      }
+      first = false;
+      if (!first) sb.append(", ");
+      sb.append("failure:");
+      if (this.failure == null) {
+        sb.append("null");
+      } else {
+        sb.append(this.failure);
+      }
+      first = false;
+      sb.append(")");
+      return sb.toString();
+    }
+
+    public void validate() throws org.apache.thrift.TException {
+      // check for required fields
+      // check for sub-struct validity
+      if (success != null) {
+        success.validate();
+      }
+    }
+
+    private void writeObject(java.io.ObjectOutputStream out) throws java.io.IOException {
+      try {
+        write(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(out)));
+      } catch (org.apache.thrift.TException te) {
+        throw new java.io.IOException(te);
+      }
+    }
+
+    private void readObject(java.io.ObjectInputStream in) throws java.io.IOException, ClassNotFoundException {
+      try {
+        read(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(in)));
+      } catch (org.apache.thrift.TException te) {
+        throw new java.io.IOException(te);
+      }
+    }
+
+    private static class authenticate_resultStandardSchemeFactory implements SchemeFactory {
+      public authenticate_resultStandardScheme getScheme() {
+        return new authenticate_resultStandardScheme();
+      }
+    }
+
+    private static class authenticate_resultStandardScheme extends StandardScheme<authenticate_result> {
+
+      public void read(org.apache.thrift.protocol.TProtocol iprot, authenticate_result struct) throws org.apache.thrift.TException {
+        org.apache.thrift.protocol.TField schemeField;
+        iprot.readStructBegin();
+        while (true)
+        {
+          schemeField = iprot.readFieldBegin();
+          if (schemeField.type == org.apache.thrift.protocol.TType.STOP) { 
+            break;
+          }
+          switch (schemeField.id) {
+            case 0: // SUCCESS
+              if (schemeField.type == org.apache.thrift.protocol.TType.STRUCT) {
+                struct.success = new SessionData();
+                struct.success.read(iprot);
+                struct.setSuccessIsSet(true);
+              } else { 
+                org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+              }
+              break;
+            case 1: // FAILURE
+              if (schemeField.type == org.apache.thrift.protocol.TType.STRUCT) {
+                struct.failure = new AuthenticationException();
+                struct.failure.read(iprot);
+                struct.setFailureIsSet(true);
+              } else { 
+                org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+              }
+              break;
+            default:
+              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+          }
+          iprot.readFieldEnd();
+        }
+        iprot.readStructEnd();
+
+        // check for required fields of primitive type, which can't be checked in the validate method
+        struct.validate();
+      }
+
+      public void write(org.apache.thrift.protocol.TProtocol oprot, authenticate_result struct) throws org.apache.thrift.TException {
+        struct.validate();
+
+        oprot.writeStructBegin(STRUCT_DESC);
+        if (struct.success != null) {
+          oprot.writeFieldBegin(SUCCESS_FIELD_DESC);
+          struct.success.write(oprot);
+          oprot.writeFieldEnd();
+        }
+        if (struct.failure != null) {
+          oprot.writeFieldBegin(FAILURE_FIELD_DESC);
+          struct.failure.write(oprot);
+          oprot.writeFieldEnd();
+        }
+        oprot.writeFieldStop();
+        oprot.writeStructEnd();
+      }
+
+    }
+
+    private static class authenticate_resultTupleSchemeFactory implements SchemeFactory {
+      public authenticate_resultTupleScheme getScheme() {
+        return new authenticate_resultTupleScheme();
+      }
+    }
+
+    private static class authenticate_resultTupleScheme extends TupleScheme<authenticate_result> {
+
+      @Override
+      public void write(org.apache.thrift.protocol.TProtocol prot, authenticate_result struct) throws org.apache.thrift.TException {
+        TTupleProtocol oprot = (TTupleProtocol) prot;
+        BitSet optionals = new BitSet();
+        if (struct.isSetSuccess()) {
+          optionals.set(0);
+        }
+        if (struct.isSetFailure()) {
+          optionals.set(1);
+        }
+        oprot.writeBitSet(optionals, 2);
+        if (struct.isSetSuccess()) {
+          struct.success.write(oprot);
+        }
+        if (struct.isSetFailure()) {
+          struct.failure.write(oprot);
+        }
+      }
+
+      @Override
+      public void read(org.apache.thrift.protocol.TProtocol prot, authenticate_result struct) throws org.apache.thrift.TException {
+        TTupleProtocol iprot = (TTupleProtocol) prot;
+        BitSet incoming = iprot.readBitSet(2);
+        if (incoming.get(0)) {
+          struct.success = new SessionData();
+          struct.success.read(iprot);
+          struct.setSuccessIsSet(true);
+        }
+        if (incoming.get(1)) {
+          struct.failure = new AuthenticationException();
+          struct.failure.read(iprot);
+          struct.setFailureIsSet(true);
+        }
+      }
+    }
+
+  }
+
+  public static class getUserFromToken_args implements org.apache.thrift.TBase<getUserFromToken_args, getUserFromToken_args._Fields>, java.io.Serializable, Cloneable, Comparable<getUserFromToken_args>   {
+    private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("getUserFromToken_args");
+
+    private static final org.apache.thrift.protocol.TField TOKEN_FIELD_DESC = new org.apache.thrift.protocol.TField("token", org.apache.thrift.protocol.TType.STRING, (short)1);
+
+    private static final Map<Class<? extends IScheme>, SchemeFactory> schemes = new HashMap<Class<? extends IScheme>, SchemeFactory>();
+    static {
+      schemes.put(StandardScheme.class, new getUserFromToken_argsStandardSchemeFactory());
+      schemes.put(TupleScheme.class, new getUserFromToken_argsTupleSchemeFactory());
+    }
+
+    public String token; // required
+
+    /** The set of fields this struct contains, along with convenience methods for finding and manipulating them. */
+    public enum _Fields implements org.apache.thrift.TFieldIdEnum {
+      TOKEN((short)1, "token");
+
+      private static final Map<String, _Fields> byName = new HashMap<String, _Fields>();
+
+      static {
+        for (_Fields field : EnumSet.allOf(_Fields.class)) {
+          byName.put(field.getFieldName(), field);
+        }
+      }
+
+      /**
+       * Find the _Fields constant that matches fieldId, or null if its not found.
+       */
+      public static _Fields findByThriftId(int fieldId) {
+        switch(fieldId) {
+          case 1: // TOKEN
+            return TOKEN;
+          default:
+            return null;
+        }
+      }
+
+      /**
+       * Find the _Fields constant that matches fieldId, throwing an exception
+       * if it is not found.
+       */
+      public static _Fields findByThriftIdOrThrow(int fieldId) {
+        _Fields fields = findByThriftId(fieldId);
+        if (fields == null) throw new IllegalArgumentException("Field " + fieldId + " doesn't exist!");
+        return fields;
+      }
+
+      /**
+       * Find the _Fields constant that matches name, or null if its not found.
+       */
+      public static _Fields findByName(String name) {
+        return byName.get(name);
+      }
+
+      private final short _thriftId;
+      private final String _fieldName;
+
+      _Fields(short thriftId, String fieldName) {
+        _thriftId = thriftId;
+        _fieldName = fieldName;
+      }
+
+      public short getThriftFieldId() {
+        return _thriftId;
+      }
+
+      public String getFieldName() {
+        return _fieldName;
+      }
+    }
+
+    // isset id assignments
+    public static final Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> metaDataMap;
+    static {
+      Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> tmpMap = new EnumMap<_Fields, org.apache.thrift.meta_data.FieldMetaData>(_Fields.class);
+      tmpMap.put(_Fields.TOKEN, new org.apache.thrift.meta_data.FieldMetaData("token", org.apache.thrift.TFieldRequirementType.DEFAULT, 
+          new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.STRING          , "Token")));
+      metaDataMap = Collections.unmodifiableMap(tmpMap);
+      org.apache.thrift.meta_data.FieldMetaData.addStructMetaDataMap(getUserFromToken_args.class, metaDataMap);
+    }
+
+    public getUserFromToken_args() {
+    }
+
+    public getUserFromToken_args(
+      String token)
+    {
+      this();
+      this.token = token;
+    }
+
+    /**
+     * Performs a deep copy on <i>other</i>.
+     */
+    public getUserFromToken_args(getUserFromToken_args other) {
+      if (other.isSetToken()) {
+        this.token = other.token;
+      }
+    }
+
+    public getUserFromToken_args deepCopy() {
+      return new getUserFromToken_args(this);
+    }
+
+    @Override
+    public void clear() {
+      this.token = null;
+    }
+
+    public String getToken() {
+      return this.token;
+    }
+
+    public getUserFromToken_args setToken(String token) {
+      this.token = token;
+      return this;
+    }
+
+    public void unsetToken() {
+      this.token = null;
+    }
+
+    /** Returns true if field token is set (has been assigned a value) and false otherwise */
+    public boolean isSetToken() {
+      return this.token != null;
+    }
+
+    public void setTokenIsSet(boolean value) {
+      if (!value) {
+        this.token = null;
+      }
+    }
+
+    public void setFieldValue(_Fields field, Object value) {
+      switch (field) {
+      case TOKEN:
+        if (value == null) {
+          unsetToken();
+        } else {
+          setToken((String)value);
+        }
+        break;
+
+      }
+    }
+
+    public Object getFieldValue(_Fields field) {
+      switch (field) {
+      case TOKEN:
+        return getToken();
+
+      }
+      throw new IllegalStateException();
+    }
+
+    /** Returns true if field corresponding to fieldID is set (has been assigned a value) and false otherwise */
+    public boolean isSet(_Fields field) {
+      if (field == null) {
+        throw new IllegalArgumentException();
+      }
+
+      switch (field) {
+      case TOKEN:
+        return isSetToken();
+      }
+      throw new IllegalStateException();
+    }
+
+    @Override
+    public boolean equals(Object that) {
+      if (that == null)
+        return false;
+      if (that instanceof getUserFromToken_args)
+        return this.equals((getUserFromToken_args)that);
+      return false;
+    }
+
+    public boolean equals(getUserFromToken_args that) {
+      if (that == null)
+        return false;
+
+      boolean this_present_token = true && this.isSetToken();
+      boolean that_present_token = true && that.isSetToken();
+      if (this_present_token || that_present_token) {
+        if (!(this_present_token && that_present_token))
+          return false;
+        if (!this.token.equals(that.token))
+          return false;
+      }
+
+      return true;
+    }
+
+    @Override
+    public int hashCode() {
+      return 0;
+    }
+
+    @Override
+    public int compareTo(getUserFromToken_args other) {
+      if (!getClass().equals(other.getClass())) {
+        return getClass().getName().compareTo(other.getClass().getName());
+      }
+
+      int lastComparison = 0;
+
+      lastComparison = Boolean.valueOf(isSetToken()).compareTo(other.isSetToken());
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+      if (isSetToken()) {
+        lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.token, other.token);
+        if (lastComparison != 0) {
+          return lastComparison;
+        }
+      }
+      return 0;
+    }
+
+    public _Fields fieldForId(int fieldId) {
+      return _Fields.findByThriftId(fieldId);
+    }
+
+    public void read(org.apache.thrift.protocol.TProtocol iprot) throws org.apache.thrift.TException {
+      schemes.get(iprot.getScheme()).getScheme().read(iprot, this);
+    }
+
+    public void write(org.apache.thrift.protocol.TProtocol oprot) throws org.apache.thrift.TException {
+      schemes.get(oprot.getScheme()).getScheme().write(oprot, this);
+    }
+
+    @Override
+    public String toString() {
+      StringBuilder sb = new StringBuilder("getUserFromToken_args(");
+      boolean first = true;
+
+      sb.append("token:");
+      if (this.token == null) {
+        sb.append("null");
+      } else {
+        sb.append(this.token);
+      }
+      first = false;
+      sb.append(")");
+      return sb.toString();
+    }
+
+    public void validate() throws org.apache.thrift.TException {
+      // check for required fields
+      // check for sub-struct validity
+    }
+
+    private void writeObject(java.io.ObjectOutputStream out) throws java.io.IOException {
+      try {
+        write(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(out)));
+      } catch (org.apache.thrift.TException te) {
+        throw new java.io.IOException(te);
+      }
+    }
+
+    private void readObject(java.io.ObjectInputStream in) throws java.io.IOException, ClassNotFoundException {
+      try {
+        read(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(in)));
+      } catch (org.apache.thrift.TException te) {
+        throw new java.io.IOException(te);
+      }
+    }
+
+    private static class getUserFromToken_argsStandardSchemeFactory implements SchemeFactory {
+      public getUserFromToken_argsStandardScheme getScheme() {
+        return new getUserFromToken_argsStandardScheme();
+      }
+    }
+
+    private static class getUserFromToken_argsStandardScheme extends StandardScheme<getUserFromToken_args> {
+
+      public void read(org.apache.thrift.protocol.TProtocol iprot, getUserFromToken_args struct) throws org.apache.thrift.TException {
+        org.apache.thrift.protocol.TField schemeField;
+        iprot.readStructBegin();
+        while (true)
+        {
+          schemeField = iprot.readFieldBegin();
+          if (schemeField.type == org.apache.thrift.protocol.TType.STOP) { 
+            break;
+          }
+          switch (schemeField.id) {
+            case 1: // TOKEN
+              if (schemeField.type == org.apache.thrift.protocol.TType.STRING) {
+                struct.token = iprot.readString();
+                struct.setTokenIsSet(true);
+              } else { 
+                org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+              }
+              break;
+            default:
+              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+          }
+          iprot.readFieldEnd();
+        }
+        iprot.readStructEnd();
+
+        // check for required fields of primitive type, which can't be checked in the validate method
+        struct.validate();
+      }
+
+      public void write(org.apache.thrift.protocol.TProtocol oprot, getUserFromToken_args struct) throws org.apache.thrift.TException {
+        struct.validate();
+
+        oprot.writeStructBegin(STRUCT_DESC);
+        if (struct.token != null) {
+          oprot.writeFieldBegin(TOKEN_FIELD_DESC);
+          oprot.writeString(struct.token);
+          oprot.writeFieldEnd();
+        }
+        oprot.writeFieldStop();
+        oprot.writeStructEnd();
+      }
+
+    }
+
+    private static class getUserFromToken_argsTupleSchemeFactory implements SchemeFactory {
+      public getUserFromToken_argsTupleScheme getScheme() {
+        return new getUserFromToken_argsTupleScheme();
+      }
+    }
+
+    private static class getUserFromToken_argsTupleScheme extends TupleScheme<getUserFromToken_args> {
+
+      @Override
+      public void write(org.apache.thrift.protocol.TProtocol prot, getUserFromToken_args struct) throws org.apache.thrift.TException {
+        TTupleProtocol oprot = (TTupleProtocol) prot;
+        BitSet optionals = new BitSet();
+        if (struct.isSetToken()) {
+          optionals.set(0);
+        }
+        oprot.writeBitSet(optionals, 1);
+        if (struct.isSetToken()) {
+          oprot.writeString(struct.token);
+        }
+      }
+
+      @Override
+      public void read(org.apache.thrift.protocol.TProtocol prot, getUserFromToken_args struct) throws org.apache.thrift.TException {
+        TTupleProtocol iprot = (TTupleProtocol) prot;
+        BitSet incoming = iprot.readBitSet(1);
+        if (incoming.get(0)) {
+          struct.token = iprot.readString();
+          struct.setTokenIsSet(true);
+        }
+      }
+    }
+
+  }
+
+  public static class getUserFromToken_result implements org.apache.thrift.TBase<getUserFromToken_result, getUserFromToken_result._Fields>, java.io.Serializable, Cloneable, Comparable<getUserFromToken_result>   {
+    private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("getUserFromToken_result");
+
+    private static final org.apache.thrift.protocol.TField SUCCESS_FIELD_DESC = new org.apache.thrift.protocol.TField("success", org.apache.thrift.protocol.TType.STRUCT, (short)0);
+    private static final org.apache.thrift.protocol.TField FAILURE_FIELD_DESC = new org.apache.thrift.protocol.TField("failure", org.apache.thrift.protocol.TType.STRUCT, (short)1);
+
+    private static final Map<Class<? extends IScheme>, SchemeFactory> schemes = new HashMap<Class<? extends IScheme>, SchemeFactory>();
+    static {
+      schemes.put(StandardScheme.class, new getUserFromToken_resultStandardSchemeFactory());
+      schemes.put(TupleScheme.class, new getUserFromToken_resultTupleSchemeFactory());
+    }
+
+    public UserInfo success; // required
+    public InvalidTokenException failure; // required
+
+    /** The set of fields this struct contains, along with convenience methods for finding and manipulating them. */
+    public enum _Fields implements org.apache.thrift.TFieldIdEnum {
+      SUCCESS((short)0, "success"),
+      FAILURE((short)1, "failure");
+
+      private static final Map<String, _Fields> byName = new HashMap<String, _Fields>();
+
+      static {
+        for (_Fields field : EnumSet.allOf(_Fields.class)) {
+          byName.put(field.getFieldName(), field);
+        }
+      }
+
+      /**
+       * Find the _Fields constant that matches fieldId, or null if its not found.
+       */
+      public static _Fields findByThriftId(int fieldId) {
+        switch(fieldId) {
+          case 0: // SUCCESS
+            return SUCCESS;
+          case 1: // FAILURE
+            return FAILURE;
+          default:
+            return null;
+        }
+      }
+
+      /**
+       * Find the _Fields constant that matches fieldId, throwing an exception
+       * if it is not found.
+       */
+      public static _Fields findByThriftIdOrThrow(int fieldId) {
+        _Fields fields = findByThriftId(fieldId);
+        if (fields == null) throw new IllegalArgumentException("Field " + fieldId + " doesn't exist!");
+        return fields;
+      }
+
+      /**
+       * Find the _Fields constant that matches name, or null if its not found.
+       */
+      public static _Fields findByName(String name) {
+        return byName.get(name);
+      }
+
+      private final short _thriftId;
+      private final String _fieldName;
+
+      _Fields(short thriftId, String fieldName) {
+        _thriftId = thriftId;
+        _fieldName = fieldName;
+      }
+
+      public short getThriftFieldId() {
+        return _thriftId;
+      }
+
+      public String getFieldName() {
+        return _fieldName;
+      }
+    }
+
+    // isset id assignments
+    public static final Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> metaDataMap;
+    static {
+      Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> tmpMap = new EnumMap<_Fields, org.apache.thrift.meta_data.FieldMetaData>(_Fields.class);
+      tmpMap.put(_Fields.SUCCESS, new org.apache.thrift.meta_data.FieldMetaData("success", org.apache.thrift.TFieldRequirementType.DEFAULT, 
+          new org.apache.thrift.meta_data.StructMetaData(org.apache.thrift.protocol.TType.STRUCT, UserInfo.class)));
+      tmpMap.put(_Fields.FAILURE, new org.apache.thrift.meta_data.FieldMetaData("failure", org.apache.thrift.TFieldRequirementType.DEFAULT, 
+          new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.STRUCT)));
+      metaDataMap = Collections.unmodifiableMap(tmpMap);
+      org.apache.thrift.meta_data.FieldMetaData.addStructMetaDataMap(getUserFromToken_result.class, metaDataMap);
+    }
+
+    public getUserFromToken_result() {
+    }
+
+    public getUserFromToken_result(
+      UserInfo success,
+      InvalidTokenException failure)
+    {
+      this();
+      this.success = success;
+      this.failure = failure;
+    }
+
+    /**
+     * Performs a deep copy on <i>other</i>.
+     */
+    public getUserFromToken_result(getUserFromToken_result other) {
+      if (other.isSetSuccess()) {
+        this.success = new UserInfo(other.success);
+      }
+      if (other.isSetFailure()) {
+        this.failure = new InvalidTokenException(other.failure);
+      }
+    }
+
+    public getUserFromToken_result deepCopy() {
+      return new getUserFromToken_result(this);
+    }
+
+    @Override
+    public void clear() {
+      this.success = null;
+      this.failure = null;
+    }
+
+    public UserInfo getSuccess() {
+      return this.success;
+    }
+
+    public getUserFromToken_result setSuccess(UserInfo success) {
+      this.success = success;
+      return this;
+    }
+
+    public void unsetSuccess() {
+      this.success = null;
+    }
+
+    /** Returns true if field success is set (has been assigned a value) and false otherwise */
+    public boolean isSetSuccess() {
+      return this.success != null;
+    }
+
+    public void setSuccessIsSet(boolean value) {
+      if (!value) {
+        this.success = null;
+      }
+    }
+
+    public InvalidTokenException getFailure() {
+      return this.failure;
+    }
+
+    public getUserFromToken_result setFailure(InvalidTokenException failure) {
+      this.failure = failure;
+      return this;
+    }
+
+    public void unsetFailure() {
+      this.failure = null;
+    }
+
+    /** Returns true if field failure is set (has been assigned a value) and false otherwise */
+    public boolean isSetFailure() {
+      return this.failure != null;
+    }
+
+    public void setFailureIsSet(boolean value) {
+      if (!value) {
+        this.failure = null;
+      }
+    }
+
+    public void setFieldValue(_Fields field, Object value) {
+      switch (field) {
+      case SUCCESS:
+        if (value == null) {
+          unsetSuccess();
+        } else {
+          setSuccess((UserInfo)value);
+        }
+        break;
+
+      case FAILURE:
+        if (value == null) {
+          unsetFailure();
+        } else {
+          setFailure((InvalidTokenException)value);
+        }
+        break;
+
+      }
+    }
+
+    public Object getFieldValue(_Fields field) {
+      switch (field) {
+      case SUCCESS:
+        return getSuccess();
+
+      case FAILURE:
+        return getFailure();
+
+      }
+      throw new IllegalStateException();
+    }
+
+    /** Returns true if field corresponding to fieldID is set (has been assigned a value) and false otherwise */
+    public boolean isSet(_Fields field) {
+      if (field == null) {
+        throw new IllegalArgumentException();
+      }
+
+      switch (field) {
+      case SUCCESS:
+        return isSetSuccess();
+      case FAILURE:
+        return isSetFailure();
+      }
+      throw new IllegalStateException();
+    }
+
+    @Override
+    public boolean equals(Object that) {
+      if (that == null)
+        return false;
+      if (that instanceof getUserFromToken_result)
+        return this.equals((getUserFromToken_result)that);
+      return false;
+    }
+
+    public boolean equals(getUserFromToken_result that) {
+      if (that == null)
+        return false;
+
+      boolean this_present_success = true && this.isSetSuccess();
+      boolean that_present_success = true && that.isSetSuccess();
+      if (this_present_success || that_present_success) {
+        if (!(this_present_success && that_present_success))
+          return false;
+        if (!this.success.equals(that.success))
+          return false;
+      }
+
+      boolean this_present_failure = true && this.isSetFailure();
+      boolean that_present_failure = true && that.isSetFailure();
+      if (this_present_failure || that_present_failure) {
+        if (!(this_present_failure && that_present_failure))
+          return false;
+        if (!this.failure.equals(that.failure))
+          return false;
+      }
+
+      return true;
+    }
+
+    @Override
+    public int hashCode() {
+      return 0;
+    }
+
+    @Override
+    public int compareTo(getUserFromToken_result other) {
+      if (!getClass().equals(other.getClass())) {
+        return getClass().getName().compareTo(other.getClass().getName());
+      }
+
+      int lastComparison = 0;
+
+      lastComparison = Boolean.valueOf(isSetSuccess()).compareTo(other.isSetSuccess());
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+      if (isSetSuccess()) {
+        lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.success, other.success);
+        if (lastComparison != 0) {
+          return lastComparison;
+        }
+      }
+      lastComparison = Boolean.valueOf(isSetFailure()).compareTo(other.isSetFailure());
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+      if (isSetFailure()) {
+        lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.failure, other.failure);
+        if (lastComparison != 0) {
+          return lastComparison;
+        }
+      }
+      return 0;
+    }
+
+    public _Fields fieldForId(int fieldId) {
+      return _Fields.findByThriftId(fieldId);
+    }
+
+    public void read(org.apache.thrift.protocol.TProtocol iprot) throws org.apache.thrift.TException {
+      schemes.get(iprot.getScheme()).getScheme().read(iprot, this);
+    }
+
+    public void write(org.apache.thrift.protocol.TProtocol oprot) throws org.apache.thrift.TException {
+      schemes.get(oprot.getScheme()).getScheme().write(oprot, this);
+      }
+
+    @Override
+    public String toString() {
+      StringBuilder sb = new StringBuilder("getUserFromToken_result(");
+      boolean first = true;
+
+      sb.append("success:");
+      if (this.success == null) {
+        sb.append("null");
+      } else {
+        sb.append(this.success);
+      }
+      first = false;
+      if (!first) sb.append(", ");
+      sb.append("failure:");
+      if (this.failure == null) {
+        sb.append("null");
+      } else {
+        sb.append(this.failure);
+      }
+      first = false;
+      sb.append(")");
+      return sb.toString();
+    }
+
+    public void validate() throws org.apache.thrift.TException {
+      // check for required fields
+      // check for sub-struct validity
+      if (success != null) {
+        success.validate();
+      }
+    }
+
+    private void writeObject(java.io.ObjectOutputStream out) throws java.io.IOException {
+      try {
+        write(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(out)));
+      } catch (org.apache.thrift.TException te) {
+        throw new java.io.IOException(te);
+      }
+    }
+
+    private void readObject(java.io.ObjectInputStream in) throws java.io.IOException, ClassNotFoundException {
+      try {
+        read(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(in)));
+      } catch (org.apache.thrift.TException te) {
+        throw new java.io.IOException(te);
+      }
+    }
+
+    private static class getUserFromToken_resultStandardSchemeFactory implements SchemeFactory {
+      public getUserFromToken_resultStandardScheme getScheme() {
+        return new getUserFromToken_resultStandardScheme();
+      }
+    }
+
+    private static class getUserFromToken_resultStandardScheme extends StandardScheme<getUserFromToken_result> {
+
+      public void read(org.apache.thrift.protocol.TProtocol iprot, getUserFromToken_result struct) throws org.apache.thrift.TException {
+        org.apache.thrift.protocol.TField schemeField;
+        iprot.readStructBegin();
+        while (true)
+        {
+          schemeField = iprot.readFieldBegin();
+          if (schemeField.type == org.apache.thrift.protocol.TType.STOP) { 
+            break;
+          }
+          switch (schemeField.id) {
+            case 0: // SUCCESS
+              if (schemeField.type == org.apache.thrift.protocol.TType.STRUCT) {
+                struct.success = new UserInfo();
+                struct.success.read(iprot);
+                struct.setSuccessIsSet(true);
+              } else { 
+                org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+              }
+              break;
+            case 1: // FAILURE
+              if (schemeField.type == org.apache.thrift.protocol.TType.STRUCT) {
+                struct.failure = new InvalidTokenException();
+                struct.failure.read(iprot);
+                struct.setFailureIsSet(true);
+              } else { 
+                org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+              }
+              break;
+            default:
+              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+          }
+          iprot.readFieldEnd();
+        }
+        iprot.readStructEnd();
+
+        // check for required fields of primitive type, which can't be checked in the validate method
+        struct.validate();
+      }
+
+      public void write(org.apache.thrift.protocol.TProtocol oprot, getUserFromToken_result struct) throws org.apache.thrift.TException {
+        struct.validate();
+
+        oprot.writeStructBegin(STRUCT_DESC);
+        if (struct.success != null) {
+          oprot.writeFieldBegin(SUCCESS_FIELD_DESC);
+          struct.success.write(oprot);
+          oprot.writeFieldEnd();
+        }
+        if (struct.failure != null) {
+          oprot.writeFieldBegin(FAILURE_FIELD_DESC);
+          struct.failure.write(oprot);
+          oprot.writeFieldEnd();
+        }
+        oprot.writeFieldStop();
+        oprot.writeStructEnd();
+      }
+
+    }
+
+    private static class getUserFromToken_resultTupleSchemeFactory implements SchemeFactory {
+      public getUserFromToken_resultTupleScheme getScheme() {
+        return new getUserFromToken_resultTupleScheme();
+      }
+    }
+
+    private static class getUserFromToken_resultTupleScheme extends TupleScheme<getUserFromToken_result> {
+
+      @Override
+      public void write(org.apache.thrift.protocol.TProtocol prot, getUserFromToken_result struct) throws org.apache.thrift.TException {
+        TTupleProtocol oprot = (TTupleProtocol) prot;
+        BitSet optionals = new BitSet();
+        if (struct.isSetSuccess()) {
+          optionals.set(0);
+        }
+        if (struct.isSetFailure()) {
+          optionals.set(1);
+        }
+        oprot.writeBitSet(optionals, 2);
+        if (struct.isSetSuccess()) {
+          struct.success.write(oprot);
+        }
+        if (struct.isSetFailure()) {
+          struct.failure.write(oprot);
+        }
+      }
+
+      @Override
+      public void read(org.apache.thrift.protocol.TProtocol prot, getUserFromToken_result struct) throws org.apache.thrift.TException {
+        TTupleProtocol iprot = (TTupleProtocol) prot;
+        BitSet incoming = iprot.readBitSet(2);
+        if (incoming.get(0)) {
+          struct.success = new UserInfo();
+          struct.success.read(iprot);
+          struct.setSuccessIsSet(true);
+        }
+        if (incoming.get(1)) {
+          struct.failure = new InvalidTokenException();
+          struct.failure.read(iprot);
+          struct.setFailureIsSet(true);
+        }
+      }
+    }
+
+  }
+
+}
diff --git a/Dozentenmodul/src/thrift/InvalidTokenException.java b/Dozentenmodul/src/thrift/InvalidTokenException.java
new file mode 100644
index 00000000..914199b5
--- /dev/null
+++ b/Dozentenmodul/src/thrift/InvalidTokenException.java
@@ -0,0 +1,280 @@
+/**
+ * Autogenerated by Thrift Compiler (0.9.1)
+ *
+ * DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING
+ *  @generated
+ */
+package thrift;
+
+import org.apache.thrift.scheme.IScheme;
+import org.apache.thrift.scheme.SchemeFactory;
+import org.apache.thrift.scheme.StandardScheme;
+
+import org.apache.thrift.scheme.TupleScheme;
+import org.apache.thrift.protocol.TTupleProtocol;
+import org.apache.thrift.protocol.TProtocolException;
+import org.apache.thrift.EncodingUtils;
+import org.apache.thrift.TException;
+import org.apache.thrift.async.AsyncMethodCallback;
+import org.apache.thrift.server.AbstractNonblockingServer.*;
+import java.util.List;
+import java.util.ArrayList;
+import java.util.Map;
+import java.util.HashMap;
+import java.util.EnumMap;
+import java.util.Set;
+import java.util.HashSet;
+import java.util.EnumSet;
+import java.util.Collections;
+import java.util.BitSet;
+import java.nio.ByteBuffer;
+import java.util.Arrays;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class InvalidTokenException extends TException implements org.apache.thrift.TBase<InvalidTokenException, InvalidTokenException._Fields>, java.io.Serializable, Cloneable, Comparable<InvalidTokenException> {
+  private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("InvalidTokenException");
+
+
+  private static final Map<Class<? extends IScheme>, SchemeFactory> schemes = new HashMap<Class<? extends IScheme>, SchemeFactory>();
+  static {
+    schemes.put(StandardScheme.class, new InvalidTokenExceptionStandardSchemeFactory());
+    schemes.put(TupleScheme.class, new InvalidTokenExceptionTupleSchemeFactory());
+  }
+
+
+  /** The set of fields this struct contains, along with convenience methods for finding and manipulating them. */
+  public enum _Fields implements org.apache.thrift.TFieldIdEnum {
+;
+
+    private static final Map<String, _Fields> byName = new HashMap<String, _Fields>();
+
+    static {
+      for (_Fields field : EnumSet.allOf(_Fields.class)) {
+        byName.put(field.getFieldName(), field);
+      }
+    }
+
+    /**
+     * Find the _Fields constant that matches fieldId, or null if its not found.
+     */
+    public static _Fields findByThriftId(int fieldId) {
+      switch(fieldId) {
+        default:
+          return null;
+      }
+    }
+
+    /**
+     * Find the _Fields constant that matches fieldId, throwing an exception
+     * if it is not found.
+     */
+    public static _Fields findByThriftIdOrThrow(int fieldId) {
+      _Fields fields = findByThriftId(fieldId);
+      if (fields == null) throw new IllegalArgumentException("Field " + fieldId + " doesn't exist!");
+      return fields;
+    }
+
+    /**
+     * Find the _Fields constant that matches name, or null if its not found.
+     */
+    public static _Fields findByName(String name) {
+      return byName.get(name);
+    }
+
+    private final short _thriftId;
+    private final String _fieldName;
+
+    _Fields(short thriftId, String fieldName) {
+      _thriftId = thriftId;
+      _fieldName = fieldName;
+    }
+
+    public short getThriftFieldId() {
+      return _thriftId;
+    }
+
+    public String getFieldName() {
+      return _fieldName;
+    }
+  }
+  public static final Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> metaDataMap;
+  static {
+    Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> tmpMap = new EnumMap<_Fields, org.apache.thrift.meta_data.FieldMetaData>(_Fields.class);
+    metaDataMap = Collections.unmodifiableMap(tmpMap);
+    org.apache.thrift.meta_data.FieldMetaData.addStructMetaDataMap(InvalidTokenException.class, metaDataMap);
+  }
+
+  public InvalidTokenException() {
+  }
+
+  /**
+   * Performs a deep copy on <i>other</i>.
+   */
+  public InvalidTokenException(InvalidTokenException other) {
+  }
+
+  public InvalidTokenException deepCopy() {
+    return new InvalidTokenException(this);
+  }
+
+  @Override
+  public void clear() {
+  }
+
+  public void setFieldValue(_Fields field, Object value) {
+    switch (field) {
+    }
+  }
+
+  public Object getFieldValue(_Fields field) {
+    switch (field) {
+    }
+    throw new IllegalStateException();
+  }
+
+  /** Returns true if field corresponding to fieldID is set (has been assigned a value) and false otherwise */
+  public boolean isSet(_Fields field) {
+    if (field == null) {
+      throw new IllegalArgumentException();
+    }
+
+    switch (field) {
+    }
+    throw new IllegalStateException();
+  }
+
+  @Override
+  public boolean equals(Object that) {
+    if (that == null)
+      return false;
+    if (that instanceof InvalidTokenException)
+      return this.equals((InvalidTokenException)that);
+    return false;
+  }
+
+  public boolean equals(InvalidTokenException that) {
+    if (that == null)
+      return false;
+
+    return true;
+  }
+
+  @Override
+  public int hashCode() {
+    return 0;
+  }
+
+  @Override
+  public int compareTo(InvalidTokenException other) {
+    if (!getClass().equals(other.getClass())) {
+      return getClass().getName().compareTo(other.getClass().getName());
+    }
+
+    int lastComparison = 0;
+
+    return 0;
+  }
+
+  public _Fields fieldForId(int fieldId) {
+    return _Fields.findByThriftId(fieldId);
+  }
+
+  public void read(org.apache.thrift.protocol.TProtocol iprot) throws org.apache.thrift.TException {
+    schemes.get(iprot.getScheme()).getScheme().read(iprot, this);
+  }
+
+  public void write(org.apache.thrift.protocol.TProtocol oprot) throws org.apache.thrift.TException {
+    schemes.get(oprot.getScheme()).getScheme().write(oprot, this);
+  }
+
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder("InvalidTokenException(");
+    boolean first = true;
+
+    sb.append(")");
+    return sb.toString();
+  }
+
+  public void validate() throws org.apache.thrift.TException {
+    // check for required fields
+    // check for sub-struct validity
+  }
+
+  private void writeObject(java.io.ObjectOutputStream out) throws java.io.IOException {
+    try {
+      write(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(out)));
+    } catch (org.apache.thrift.TException te) {
+      throw new java.io.IOException(te);
+    }
+  }
+
+  private void readObject(java.io.ObjectInputStream in) throws java.io.IOException, ClassNotFoundException {
+    try {
+      read(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(in)));
+    } catch (org.apache.thrift.TException te) {
+      throw new java.io.IOException(te);
+    }
+  }
+
+  private static class InvalidTokenExceptionStandardSchemeFactory implements SchemeFactory {
+    public InvalidTokenExceptionStandardScheme getScheme() {
+      return new InvalidTokenExceptionStandardScheme();
+    }
+  }
+
+  private static class InvalidTokenExceptionStandardScheme extends StandardScheme<InvalidTokenException> {
+
+    public void read(org.apache.thrift.protocol.TProtocol iprot, InvalidTokenException struct) throws org.apache.thrift.TException {
+      org.apache.thrift.protocol.TField schemeField;
+      iprot.readStructBegin();
+      while (true)
+      {
+        schemeField = iprot.readFieldBegin();
+        if (schemeField.type == org.apache.thrift.protocol.TType.STOP) { 
+          break;
+        }
+        switch (schemeField.id) {
+          default:
+            org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+        }
+        iprot.readFieldEnd();
+      }
+      iprot.readStructEnd();
+
+      // check for required fields of primitive type, which can't be checked in the validate method
+      struct.validate();
+    }
+
+    public void write(org.apache.thrift.protocol.TProtocol oprot, InvalidTokenException struct) throws org.apache.thrift.TException {
+      struct.validate();
+
+      oprot.writeStructBegin(STRUCT_DESC);
+      oprot.writeFieldStop();
+      oprot.writeStructEnd();
+    }
+
+  }
+
+  private static class InvalidTokenExceptionTupleSchemeFactory implements SchemeFactory {
+    public InvalidTokenExceptionTupleScheme getScheme() {
+      return new InvalidTokenExceptionTupleScheme();
+    }
+  }
+
+  private static class InvalidTokenExceptionTupleScheme extends TupleScheme<InvalidTokenException> {
+
+    @Override
+    public void write(org.apache.thrift.protocol.TProtocol prot, InvalidTokenException struct) throws org.apache.thrift.TException {
+      TTupleProtocol oprot = (TTupleProtocol) prot;
+    }
+
+    @Override
+    public void read(org.apache.thrift.protocol.TProtocol prot, InvalidTokenException struct) throws org.apache.thrift.TException {
+      TTupleProtocol iprot = (TTupleProtocol) prot;
+    }
+  }
+
+}
+
diff --git a/Dozentenmodul/src/thrift/MasterThriftConnection.java b/Dozentenmodul/src/thrift/MasterThriftConnection.java
new file mode 100644
index 00000000..ecbc689c
--- /dev/null
+++ b/Dozentenmodul/src/thrift/MasterThriftConnection.java
@@ -0,0 +1,38 @@
+package thrift;
+
+import org.apache.thrift.protocol.TBinaryProtocol;
+import org.apache.thrift.protocol.TProtocol;
+import org.apache.thrift.transport.TSocket;
+import org.apache.thrift.transport.TTransport;
+import org.apache.thrift.transport.TTransportException;
+
+import thrift.ImageServer.Client;
+
+
+
+public class MasterThriftConnection {
+	final TTransport transport = new TSocket("132.230.4.16", 9090);
+	public Client getMasterThriftConnection()
+	{
+		
+		try {
+			transport.open();
+		} catch (TTransportException e) {
+			System.out.println("Keine Verbindung möglich!");
+			return null;
+		}
+
+		final TProtocol protocol = new TBinaryProtocol(transport);
+		final Client client = new Client(protocol);
+
+		
+		System.out.println("Der Server läuft!");
+		
+		return client;
+	}
+
+	public void closeMasterThriftConnection()
+	{
+		transport.close();
+	}
+}
diff --git a/Dozentenmodul/src/thrift/SessionData.java b/Dozentenmodul/src/thrift/SessionData.java
new file mode 100644
index 00000000..51f0f80b
--- /dev/null
+++ b/Dozentenmodul/src/thrift/SessionData.java
@@ -0,0 +1,588 @@
+/**
+ * Autogenerated by Thrift Compiler (0.9.1)
+ *
+ * DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING
+ *  @generated
+ */
+package thrift;
+
+import org.apache.thrift.scheme.IScheme;
+import org.apache.thrift.scheme.SchemeFactory;
+import org.apache.thrift.scheme.StandardScheme;
+
+import org.apache.thrift.scheme.TupleScheme;
+import org.apache.thrift.protocol.TTupleProtocol;
+import org.apache.thrift.protocol.TProtocolException;
+import org.apache.thrift.EncodingUtils;
+import org.apache.thrift.TException;
+import org.apache.thrift.async.AsyncMethodCallback;
+import org.apache.thrift.server.AbstractNonblockingServer.*;
+import java.util.List;
+import java.util.ArrayList;
+import java.util.Map;
+import java.util.HashMap;
+import java.util.EnumMap;
+import java.util.Set;
+import java.util.HashSet;
+import java.util.EnumSet;
+import java.util.Collections;
+import java.util.BitSet;
+import java.nio.ByteBuffer;
+import java.util.Arrays;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class SessionData implements org.apache.thrift.TBase<SessionData, SessionData._Fields>, java.io.Serializable, Cloneable, Comparable<SessionData> {
+  private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("SessionData");
+
+  private static final org.apache.thrift.protocol.TField SESSION_ID_FIELD_DESC = new org.apache.thrift.protocol.TField("sessionId", org.apache.thrift.protocol.TType.STRING, (short)1);
+  private static final org.apache.thrift.protocol.TField AUTH_TOKEN_FIELD_DESC = new org.apache.thrift.protocol.TField("authToken", org.apache.thrift.protocol.TType.STRING, (short)2);
+  private static final org.apache.thrift.protocol.TField SERVER_ADDRESS_FIELD_DESC = new org.apache.thrift.protocol.TField("serverAddress", org.apache.thrift.protocol.TType.STRING, (short)3);
+
+  private static final Map<Class<? extends IScheme>, SchemeFactory> schemes = new HashMap<Class<? extends IScheme>, SchemeFactory>();
+  static {
+    schemes.put(StandardScheme.class, new SessionDataStandardSchemeFactory());
+    schemes.put(TupleScheme.class, new SessionDataTupleSchemeFactory());
+  }
+
+  public String sessionId; // required
+  public String authToken; // required
+  public String serverAddress; // required
+
+  /** The set of fields this struct contains, along with convenience methods for finding and manipulating them. */
+  public enum _Fields implements org.apache.thrift.TFieldIdEnum {
+    SESSION_ID((short)1, "sessionId"),
+    AUTH_TOKEN((short)2, "authToken"),
+    SERVER_ADDRESS((short)3, "serverAddress");
+
+    private static final Map<String, _Fields> byName = new HashMap<String, _Fields>();
+
+    static {
+      for (_Fields field : EnumSet.allOf(_Fields.class)) {
+        byName.put(field.getFieldName(), field);
+      }
+    }
+
+    /**
+     * Find the _Fields constant that matches fieldId, or null if its not found.
+     */
+    public static _Fields findByThriftId(int fieldId) {
+      switch(fieldId) {
+        case 1: // SESSION_ID
+          return SESSION_ID;
+        case 2: // AUTH_TOKEN
+          return AUTH_TOKEN;
+        case 3: // SERVER_ADDRESS
+          return SERVER_ADDRESS;
+        default:
+          return null;
+      }
+    }
+
+    /**
+     * Find the _Fields constant that matches fieldId, throwing an exception
+     * if it is not found.
+     */
+    public static _Fields findByThriftIdOrThrow(int fieldId) {
+      _Fields fields = findByThriftId(fieldId);
+      if (fields == null) throw new IllegalArgumentException("Field " + fieldId + " doesn't exist!");
+      return fields;
+    }
+
+    /**
+     * Find the _Fields constant that matches name, or null if its not found.
+     */
+    public static _Fields findByName(String name) {
+      return byName.get(name);
+    }
+
+    private final short _thriftId;
+    private final String _fieldName;
+
+    _Fields(short thriftId, String fieldName) {
+      _thriftId = thriftId;
+      _fieldName = fieldName;
+    }
+
+    public short getThriftFieldId() {
+      return _thriftId;
+    }
+
+    public String getFieldName() {
+      return _fieldName;
+    }
+  }
+
+  // isset id assignments
+  public static final Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> metaDataMap;
+  static {
+    Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> tmpMap = new EnumMap<_Fields, org.apache.thrift.meta_data.FieldMetaData>(_Fields.class);
+    tmpMap.put(_Fields.SESSION_ID, new org.apache.thrift.meta_data.FieldMetaData("sessionId", org.apache.thrift.TFieldRequirementType.DEFAULT, 
+        new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.STRING        , "ID")));
+    tmpMap.put(_Fields.AUTH_TOKEN, new org.apache.thrift.meta_data.FieldMetaData("authToken", org.apache.thrift.TFieldRequirementType.DEFAULT, 
+        new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.STRING        , "Token")));
+    tmpMap.put(_Fields.SERVER_ADDRESS, new org.apache.thrift.meta_data.FieldMetaData("serverAddress", org.apache.thrift.TFieldRequirementType.DEFAULT, 
+        new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.STRING)));
+    metaDataMap = Collections.unmodifiableMap(tmpMap);
+    org.apache.thrift.meta_data.FieldMetaData.addStructMetaDataMap(SessionData.class, metaDataMap);
+  }
+
+  public SessionData() {
+  }
+
+  public SessionData(
+    String sessionId,
+    String authToken,
+    String serverAddress)
+  {
+    this();
+    this.sessionId = sessionId;
+    this.authToken = authToken;
+    this.serverAddress = serverAddress;
+  }
+
+  /**
+   * Performs a deep copy on <i>other</i>.
+   */
+  public SessionData(SessionData other) {
+    if (other.isSetSessionId()) {
+      this.sessionId = other.sessionId;
+    }
+    if (other.isSetAuthToken()) {
+      this.authToken = other.authToken;
+    }
+    if (other.isSetServerAddress()) {
+      this.serverAddress = other.serverAddress;
+    }
+  }
+
+  public SessionData deepCopy() {
+    return new SessionData(this);
+  }
+
+  @Override
+  public void clear() {
+    this.sessionId = null;
+    this.authToken = null;
+    this.serverAddress = null;
+  }
+
+  public String getSessionId() {
+    return this.sessionId;
+  }
+
+  public SessionData setSessionId(String sessionId) {
+    this.sessionId = sessionId;
+    return this;
+  }
+
+  public void unsetSessionId() {
+    this.sessionId = null;
+  }
+
+  /** Returns true if field sessionId is set (has been assigned a value) and false otherwise */
+  public boolean isSetSessionId() {
+    return this.sessionId != null;
+  }
+
+  public void setSessionIdIsSet(boolean value) {
+    if (!value) {
+      this.sessionId = null;
+    }
+  }
+
+  public String getAuthToken() {
+    return this.authToken;
+  }
+
+  public SessionData setAuthToken(String authToken) {
+    this.authToken = authToken;
+    return this;
+  }
+
+  public void unsetAuthToken() {
+    this.authToken = null;
+  }
+
+  /** Returns true if field authToken is set (has been assigned a value) and false otherwise */
+  public boolean isSetAuthToken() {
+    return this.authToken != null;
+  }
+
+  public void setAuthTokenIsSet(boolean value) {
+    if (!value) {
+      this.authToken = null;
+    }
+  }
+
+  public String getServerAddress() {
+    return this.serverAddress;
+  }
+
+  public SessionData setServerAddress(String serverAddress) {
+    this.serverAddress = serverAddress;
+    return this;
+  }
+
+  public void unsetServerAddress() {
+    this.serverAddress = null;
+  }
+
+  /** Returns true if field serverAddress is set (has been assigned a value) and false otherwise */
+  public boolean isSetServerAddress() {
+    return this.serverAddress != null;
+  }
+
+  public void setServerAddressIsSet(boolean value) {
+    if (!value) {
+      this.serverAddress = null;
+    }
+  }
+
+  public void setFieldValue(_Fields field, Object value) {
+    switch (field) {
+    case SESSION_ID:
+      if (value == null) {
+        unsetSessionId();
+      } else {
+        setSessionId((String)value);
+      }
+      break;
+
+    case AUTH_TOKEN:
+      if (value == null) {
+        unsetAuthToken();
+      } else {
+        setAuthToken((String)value);
+      }
+      break;
+
+    case SERVER_ADDRESS:
+      if (value == null) {
+        unsetServerAddress();
+      } else {
+        setServerAddress((String)value);
+      }
+      break;
+
+    }
+  }
+
+  public Object getFieldValue(_Fields field) {
+    switch (field) {
+    case SESSION_ID:
+      return getSessionId();
+
+    case AUTH_TOKEN:
+      return getAuthToken();
+
+    case SERVER_ADDRESS:
+      return getServerAddress();
+
+    }
+    throw new IllegalStateException();
+  }
+
+  /** Returns true if field corresponding to fieldID is set (has been assigned a value) and false otherwise */
+  public boolean isSet(_Fields field) {
+    if (field == null) {
+      throw new IllegalArgumentException();
+    }
+
+    switch (field) {
+    case SESSION_ID:
+      return isSetSessionId();
+    case AUTH_TOKEN:
+      return isSetAuthToken();
+    case SERVER_ADDRESS:
+      return isSetServerAddress();
+    }
+    throw new IllegalStateException();
+  }
+
+  @Override
+  public boolean equals(Object that) {
+    if (that == null)
+      return false;
+    if (that instanceof SessionData)
+      return this.equals((SessionData)that);
+    return false;
+  }
+
+  public boolean equals(SessionData that) {
+    if (that == null)
+      return false;
+
+    boolean this_present_sessionId = true && this.isSetSessionId();
+    boolean that_present_sessionId = true && that.isSetSessionId();
+    if (this_present_sessionId || that_present_sessionId) {
+      if (!(this_present_sessionId && that_present_sessionId))
+        return false;
+      if (!this.sessionId.equals(that.sessionId))
+        return false;
+    }
+
+    boolean this_present_authToken = true && this.isSetAuthToken();
+    boolean that_present_authToken = true && that.isSetAuthToken();
+    if (this_present_authToken || that_present_authToken) {
+      if (!(this_present_authToken && that_present_authToken))
+        return false;
+      if (!this.authToken.equals(that.authToken))
+        return false;
+    }
+
+    boolean this_present_serverAddress = true && this.isSetServerAddress();
+    boolean that_present_serverAddress = true && that.isSetServerAddress();
+    if (this_present_serverAddress || that_present_serverAddress) {
+      if (!(this_present_serverAddress && that_present_serverAddress))
+        return false;
+      if (!this.serverAddress.equals(that.serverAddress))
+        return false;
+    }
+
+    return true;
+  }
+
+  @Override
+  public int hashCode() {
+    return 0;
+  }
+
+  @Override
+  public int compareTo(SessionData other) {
+    if (!getClass().equals(other.getClass())) {
+      return getClass().getName().compareTo(other.getClass().getName());
+    }
+
+    int lastComparison = 0;
+
+    lastComparison = Boolean.valueOf(isSetSessionId()).compareTo(other.isSetSessionId());
+    if (lastComparison != 0) {
+      return lastComparison;
+    }
+    if (isSetSessionId()) {
+      lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.sessionId, other.sessionId);
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+    }
+    lastComparison = Boolean.valueOf(isSetAuthToken()).compareTo(other.isSetAuthToken());
+    if (lastComparison != 0) {
+      return lastComparison;
+    }
+    if (isSetAuthToken()) {
+      lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.authToken, other.authToken);
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+    }
+    lastComparison = Boolean.valueOf(isSetServerAddress()).compareTo(other.isSetServerAddress());
+    if (lastComparison != 0) {
+      return lastComparison;
+    }
+    if (isSetServerAddress()) {
+      lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.serverAddress, other.serverAddress);
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+    }
+    return 0;
+  }
+
+  public _Fields fieldForId(int fieldId) {
+    return _Fields.findByThriftId(fieldId);
+  }
+
+  public void read(org.apache.thrift.protocol.TProtocol iprot) throws org.apache.thrift.TException {
+    schemes.get(iprot.getScheme()).getScheme().read(iprot, this);
+  }
+
+  public void write(org.apache.thrift.protocol.TProtocol oprot) throws org.apache.thrift.TException {
+    schemes.get(oprot.getScheme()).getScheme().write(oprot, this);
+  }
+
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder("SessionData(");
+    boolean first = true;
+
+    sb.append("sessionId:");
+    if (this.sessionId == null) {
+      sb.append("null");
+    } else {
+      sb.append(this.sessionId);
+    }
+    first = false;
+    if (!first) sb.append(", ");
+    sb.append("authToken:");
+    if (this.authToken == null) {
+      sb.append("null");
+    } else {
+      sb.append(this.authToken);
+    }
+    first = false;
+    if (!first) sb.append(", ");
+    sb.append("serverAddress:");
+    if (this.serverAddress == null) {
+      sb.append("null");
+    } else {
+      sb.append(this.serverAddress);
+    }
+    first = false;
+    sb.append(")");
+    return sb.toString();
+  }
+
+  public void validate() throws org.apache.thrift.TException {
+    // check for required fields
+    // check for sub-struct validity
+  }
+
+  private void writeObject(java.io.ObjectOutputStream out) throws java.io.IOException {
+    try {
+      write(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(out)));
+    } catch (org.apache.thrift.TException te) {
+      throw new java.io.IOException(te);
+    }
+  }
+
+  private void readObject(java.io.ObjectInputStream in) throws java.io.IOException, ClassNotFoundException {
+    try {
+      read(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(in)));
+    } catch (org.apache.thrift.TException te) {
+      throw new java.io.IOException(te);
+    }
+  }
+
+  private static class SessionDataStandardSchemeFactory implements SchemeFactory {
+    public SessionDataStandardScheme getScheme() {
+      return new SessionDataStandardScheme();
+    }
+  }
+
+  private static class SessionDataStandardScheme extends StandardScheme<SessionData> {
+
+    public void read(org.apache.thrift.protocol.TProtocol iprot, SessionData struct) throws org.apache.thrift.TException {
+      org.apache.thrift.protocol.TField schemeField;
+      iprot.readStructBegin();
+      while (true)
+      {
+        schemeField = iprot.readFieldBegin();
+        if (schemeField.type == org.apache.thrift.protocol.TType.STOP) { 
+          break;
+        }
+        switch (schemeField.id) {
+          case 1: // SESSION_ID
+            if (schemeField.type == org.apache.thrift.protocol.TType.STRING) {
+              struct.sessionId = iprot.readString();
+              struct.setSessionIdIsSet(true);
+            } else { 
+              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+            }
+            break;
+          case 2: // AUTH_TOKEN
+            if (schemeField.type == org.apache.thrift.protocol.TType.STRING) {
+              struct.authToken = iprot.readString();
+              struct.setAuthTokenIsSet(true);
+            } else { 
+              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+            }
+            break;
+          case 3: // SERVER_ADDRESS
+            if (schemeField.type == org.apache.thrift.protocol.TType.STRING) {
+              struct.serverAddress = iprot.readString();
+              struct.setServerAddressIsSet(true);
+            } else { 
+              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+            }
+            break;
+          default:
+            org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+        }
+        iprot.readFieldEnd();
+      }
+      iprot.readStructEnd();
+
+      // check for required fields of primitive type, which can't be checked in the validate method
+      struct.validate();
+    }
+
+    public void write(org.apache.thrift.protocol.TProtocol oprot, SessionData struct) throws org.apache.thrift.TException {
+      struct.validate();
+
+      oprot.writeStructBegin(STRUCT_DESC);
+      if (struct.sessionId != null) {
+        oprot.writeFieldBegin(SESSION_ID_FIELD_DESC);
+        oprot.writeString(struct.sessionId);
+        oprot.writeFieldEnd();
+      }
+      if (struct.authToken != null) {
+        oprot.writeFieldBegin(AUTH_TOKEN_FIELD_DESC);
+        oprot.writeString(struct.authToken);
+        oprot.writeFieldEnd();
+      }
+      if (struct.serverAddress != null) {
+        oprot.writeFieldBegin(SERVER_ADDRESS_FIELD_DESC);
+        oprot.writeString(struct.serverAddress);
+        oprot.writeFieldEnd();
+      }
+      oprot.writeFieldStop();
+      oprot.writeStructEnd();
+    }
+
+  }
+
+  private static class SessionDataTupleSchemeFactory implements SchemeFactory {
+    public SessionDataTupleScheme getScheme() {
+      return new SessionDataTupleScheme();
+    }
+  }
+
+  private static class SessionDataTupleScheme extends TupleScheme<SessionData> {
+
+    @Override
+    public void write(org.apache.thrift.protocol.TProtocol prot, SessionData struct) throws org.apache.thrift.TException {
+      TTupleProtocol oprot = (TTupleProtocol) prot;
+      BitSet optionals = new BitSet();
+      if (struct.isSetSessionId()) {
+        optionals.set(0);
+      }
+      if (struct.isSetAuthToken()) {
+        optionals.set(1);
+      }
+      if (struct.isSetServerAddress()) {
+        optionals.set(2);
+      }
+      oprot.writeBitSet(optionals, 3);
+      if (struct.isSetSessionId()) {
+        oprot.writeString(struct.sessionId);
+      }
+      if (struct.isSetAuthToken()) {
+        oprot.writeString(struct.authToken);
+      }
+      if (struct.isSetServerAddress()) {
+        oprot.writeString(struct.serverAddress);
+      }
+    }
+
+    @Override
+    public void read(org.apache.thrift.protocol.TProtocol prot, SessionData struct) throws org.apache.thrift.TException {
+      TTupleProtocol iprot = (TTupleProtocol) prot;
+      BitSet incoming = iprot.readBitSet(3);
+      if (incoming.get(0)) {
+        struct.sessionId = iprot.readString();
+        struct.setSessionIdIsSet(true);
+      }
+      if (incoming.get(1)) {
+        struct.authToken = iprot.readString();
+        struct.setAuthTokenIsSet(true);
+      }
+      if (incoming.get(2)) {
+        struct.serverAddress = iprot.readString();
+        struct.setServerAddressIsSet(true);
+      }
+    }
+  }
+
+}
+
diff --git a/Dozentenmodul/src/thrift/ThriftConnection.java b/Dozentenmodul/src/thrift/ThriftConnection.java
index 21baff96..311125f5 100644
--- a/Dozentenmodul/src/thrift/ThriftConnection.java
+++ b/Dozentenmodul/src/thrift/ThriftConnection.java
@@ -10,7 +10,8 @@ import server.Server;
 import server.Server.Client;
 
 public class ThriftConnection {
-	final TTransport transport = new TSocket("141.79.128.121", 9090);
+	//final TTransport transport = new TSocket("141.79.128.121", 9090);
+	final TTransport transport = new TSocket("141.79.128.102", 9090);
 	public Client getThriftConnection()
 	{
 		
@@ -25,13 +26,14 @@ public class ThriftConnection {
 		final Server.Client client = new Server.Client(protocol);
 
 		
-		System.out.println("Der Server läuft!");
+		System.out.println("Verbindung wurde aufgebaut.");
 		
 		return client;
 	}
 
 	public void closeThriftConnection()
 	{
+		System.out.println("Verbindung wird geplant getrennt...");
 		transport.close();
 	}
 }
diff --git a/Dozentenmodul/src/thrift/UserInfo.java b/Dozentenmodul/src/thrift/UserInfo.java
new file mode 100644
index 00000000..56678646
--- /dev/null
+++ b/Dozentenmodul/src/thrift/UserInfo.java
@@ -0,0 +1,688 @@
+/**
+ * Autogenerated by Thrift Compiler (0.9.1)
+ *
+ * DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING
+ *  @generated
+ */
+package thrift;
+
+import org.apache.thrift.scheme.IScheme;
+import org.apache.thrift.scheme.SchemeFactory;
+import org.apache.thrift.scheme.StandardScheme;
+
+import org.apache.thrift.scheme.TupleScheme;
+import org.apache.thrift.protocol.TTupleProtocol;
+import org.apache.thrift.protocol.TProtocolException;
+import org.apache.thrift.EncodingUtils;
+import org.apache.thrift.TException;
+import org.apache.thrift.async.AsyncMethodCallback;
+import org.apache.thrift.server.AbstractNonblockingServer.*;
+import java.util.List;
+import java.util.ArrayList;
+import java.util.Map;
+import java.util.HashMap;
+import java.util.EnumMap;
+import java.util.Set;
+import java.util.HashSet;
+import java.util.EnumSet;
+import java.util.Collections;
+import java.util.BitSet;
+import java.nio.ByteBuffer;
+import java.util.Arrays;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class UserInfo implements org.apache.thrift.TBase<UserInfo, UserInfo._Fields>, java.io.Serializable, Cloneable, Comparable<UserInfo> {
+  private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("UserInfo");
+
+  private static final org.apache.thrift.protocol.TField USER_ID_FIELD_DESC = new org.apache.thrift.protocol.TField("userId", org.apache.thrift.protocol.TType.STRING, (short)1);
+  private static final org.apache.thrift.protocol.TField FIRST_NAME_FIELD_DESC = new org.apache.thrift.protocol.TField("firstName", org.apache.thrift.protocol.TType.STRING, (short)2);
+  private static final org.apache.thrift.protocol.TField LAST_NAME_FIELD_DESC = new org.apache.thrift.protocol.TField("lastName", org.apache.thrift.protocol.TType.STRING, (short)3);
+  private static final org.apache.thrift.protocol.TField E_MAIL_FIELD_DESC = new org.apache.thrift.protocol.TField("eMail", org.apache.thrift.protocol.TType.STRING, (short)4);
+
+  private static final Map<Class<? extends IScheme>, SchemeFactory> schemes = new HashMap<Class<? extends IScheme>, SchemeFactory>();
+  static {
+    schemes.put(StandardScheme.class, new UserInfoStandardSchemeFactory());
+    schemes.put(TupleScheme.class, new UserInfoTupleSchemeFactory());
+  }
+
+  public String userId; // required
+  public String firstName; // required
+  public String lastName; // required
+  public String eMail; // required
+
+  /** The set of fields this struct contains, along with convenience methods for finding and manipulating them. */
+  public enum _Fields implements org.apache.thrift.TFieldIdEnum {
+    USER_ID((short)1, "userId"),
+    FIRST_NAME((short)2, "firstName"),
+    LAST_NAME((short)3, "lastName"),
+    E_MAIL((short)4, "eMail");
+
+    private static final Map<String, _Fields> byName = new HashMap<String, _Fields>();
+
+    static {
+      for (_Fields field : EnumSet.allOf(_Fields.class)) {
+        byName.put(field.getFieldName(), field);
+      }
+    }
+
+    /**
+     * Find the _Fields constant that matches fieldId, or null if its not found.
+     */
+    public static _Fields findByThriftId(int fieldId) {
+      switch(fieldId) {
+        case 1: // USER_ID
+          return USER_ID;
+        case 2: // FIRST_NAME
+          return FIRST_NAME;
+        case 3: // LAST_NAME
+          return LAST_NAME;
+        case 4: // E_MAIL
+          return E_MAIL;
+        default:
+          return null;
+      }
+    }
+
+    /**
+     * Find the _Fields constant that matches fieldId, throwing an exception
+     * if it is not found.
+     */
+    public static _Fields findByThriftIdOrThrow(int fieldId) {
+      _Fields fields = findByThriftId(fieldId);
+      if (fields == null) throw new IllegalArgumentException("Field " + fieldId + " doesn't exist!");
+      return fields;
+    }
+
+    /**
+     * Find the _Fields constant that matches name, or null if its not found.
+     */
+    public static _Fields findByName(String name) {
+      return byName.get(name);
+    }
+
+    private final short _thriftId;
+    private final String _fieldName;
+
+    _Fields(short thriftId, String fieldName) {
+      _thriftId = thriftId;
+      _fieldName = fieldName;
+    }
+
+    public short getThriftFieldId() {
+      return _thriftId;
+    }
+
+    public String getFieldName() {
+      return _fieldName;
+    }
+  }
+
+  // isset id assignments
+  public static final Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> metaDataMap;
+  static {
+    Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> tmpMap = new EnumMap<_Fields, org.apache.thrift.meta_data.FieldMetaData>(_Fields.class);
+    tmpMap.put(_Fields.USER_ID, new org.apache.thrift.meta_data.FieldMetaData("userId", org.apache.thrift.TFieldRequirementType.DEFAULT, 
+        new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.STRING)));
+    tmpMap.put(_Fields.FIRST_NAME, new org.apache.thrift.meta_data.FieldMetaData("firstName", org.apache.thrift.TFieldRequirementType.DEFAULT, 
+        new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.STRING)));
+    tmpMap.put(_Fields.LAST_NAME, new org.apache.thrift.meta_data.FieldMetaData("lastName", org.apache.thrift.TFieldRequirementType.DEFAULT, 
+        new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.STRING)));
+    tmpMap.put(_Fields.E_MAIL, new org.apache.thrift.meta_data.FieldMetaData("eMail", org.apache.thrift.TFieldRequirementType.DEFAULT, 
+        new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.STRING)));
+    metaDataMap = Collections.unmodifiableMap(tmpMap);
+    org.apache.thrift.meta_data.FieldMetaData.addStructMetaDataMap(UserInfo.class, metaDataMap);
+  }
+
+  public UserInfo() {
+  }
+
+  public UserInfo(
+    String userId,
+    String firstName,
+    String lastName,
+    String eMail)
+  {
+    this();
+    this.userId = userId;
+    this.firstName = firstName;
+    this.lastName = lastName;
+    this.eMail = eMail;
+  }
+
+  /**
+   * Performs a deep copy on <i>other</i>.
+   */
+  public UserInfo(UserInfo other) {
+    if (other.isSetUserId()) {
+      this.userId = other.userId;
+    }
+    if (other.isSetFirstName()) {
+      this.firstName = other.firstName;
+    }
+    if (other.isSetLastName()) {
+      this.lastName = other.lastName;
+    }
+    if (other.isSetEMail()) {
+      this.eMail = other.eMail;
+    }
+  }
+
+  public UserInfo deepCopy() {
+    return new UserInfo(this);
+  }
+
+  @Override
+  public void clear() {
+    this.userId = null;
+    this.firstName = null;
+    this.lastName = null;
+    this.eMail = null;
+  }
+
+  public String getUserId() {
+    return this.userId;
+  }
+
+  public UserInfo setUserId(String userId) {
+    this.userId = userId;
+    return this;
+  }
+
+  public void unsetUserId() {
+    this.userId = null;
+  }
+
+  /** Returns true if field userId is set (has been assigned a value) and false otherwise */
+  public boolean isSetUserId() {
+    return this.userId != null;
+  }
+
+  public void setUserIdIsSet(boolean value) {
+    if (!value) {
+      this.userId = null;
+    }
+  }
+
+  public String getFirstName() {
+    return this.firstName;
+  }
+
+  public UserInfo setFirstName(String firstName) {
+    this.firstName = firstName;
+    return this;
+  }
+
+  public void unsetFirstName() {
+    this.firstName = null;
+  }
+
+  /** Returns true if field firstName is set (has been assigned a value) and false otherwise */
+  public boolean isSetFirstName() {
+    return this.firstName != null;
+  }
+
+  public void setFirstNameIsSet(boolean value) {
+    if (!value) {
+      this.firstName = null;
+    }
+  }
+
+  public String getLastName() {
+    return this.lastName;
+  }
+
+  public UserInfo setLastName(String lastName) {
+    this.lastName = lastName;
+    return this;
+  }
+
+  public void unsetLastName() {
+    this.lastName = null;
+  }
+
+  /** Returns true if field lastName is set (has been assigned a value) and false otherwise */
+  public boolean isSetLastName() {
+    return this.lastName != null;
+  }
+
+  public void setLastNameIsSet(boolean value) {
+    if (!value) {
+      this.lastName = null;
+    }
+  }
+
+  public String getEMail() {
+    return this.eMail;
+  }
+
+  public UserInfo setEMail(String eMail) {
+    this.eMail = eMail;
+    return this;
+  }
+
+  public void unsetEMail() {
+    this.eMail = null;
+  }
+
+  /** Returns true if field eMail is set (has been assigned a value) and false otherwise */
+  public boolean isSetEMail() {
+    return this.eMail != null;
+  }
+
+  public void setEMailIsSet(boolean value) {
+    if (!value) {
+      this.eMail = null;
+    }
+  }
+
+  public void setFieldValue(_Fields field, Object value) {
+    switch (field) {
+    case USER_ID:
+      if (value == null) {
+        unsetUserId();
+      } else {
+        setUserId((String)value);
+      }
+      break;
+
+    case FIRST_NAME:
+      if (value == null) {
+        unsetFirstName();
+      } else {
+        setFirstName((String)value);
+      }
+      break;
+
+    case LAST_NAME:
+      if (value == null) {
+        unsetLastName();
+      } else {
+        setLastName((String)value);
+      }
+      break;
+
+    case E_MAIL:
+      if (value == null) {
+        unsetEMail();
+      } else {
+        setEMail((String)value);
+      }
+      break;
+
+    }
+  }
+
+  public Object getFieldValue(_Fields field) {
+    switch (field) {
+    case USER_ID:
+      return getUserId();
+
+    case FIRST_NAME:
+      return getFirstName();
+
+    case LAST_NAME:
+      return getLastName();
+
+    case E_MAIL:
+      return getEMail();
+
+    }
+    throw new IllegalStateException();
+  }
+
+  /** Returns true if field corresponding to fieldID is set (has been assigned a value) and false otherwise */
+  public boolean isSet(_Fields field) {
+    if (field == null) {
+      throw new IllegalArgumentException();
+    }
+
+    switch (field) {
+    case USER_ID:
+      return isSetUserId();
+    case FIRST_NAME:
+      return isSetFirstName();
+    case LAST_NAME:
+      return isSetLastName();
+    case E_MAIL:
+      return isSetEMail();
+    }
+    throw new IllegalStateException();
+  }
+
+  @Override
+  public boolean equals(Object that) {
+    if (that == null)
+      return false;
+    if (that instanceof UserInfo)
+      return this.equals((UserInfo)that);
+    return false;
+  }
+
+  public boolean equals(UserInfo that) {
+    if (that == null)
+      return false;
+
+    boolean this_present_userId = true && this.isSetUserId();
+    boolean that_present_userId = true && that.isSetUserId();
+    if (this_present_userId || that_present_userId) {
+      if (!(this_present_userId && that_present_userId))
+        return false;
+      if (!this.userId.equals(that.userId))
+        return false;
+    }
+
+    boolean this_present_firstName = true && this.isSetFirstName();
+    boolean that_present_firstName = true && that.isSetFirstName();
+    if (this_present_firstName || that_present_firstName) {
+      if (!(this_present_firstName && that_present_firstName))
+        return false;
+      if (!this.firstName.equals(that.firstName))
+        return false;
+    }
+
+    boolean this_present_lastName = true && this.isSetLastName();
+    boolean that_present_lastName = true && that.isSetLastName();
+    if (this_present_lastName || that_present_lastName) {
+      if (!(this_present_lastName && that_present_lastName))
+        return false;
+      if (!this.lastName.equals(that.lastName))
+        return false;
+    }
+
+    boolean this_present_eMail = true && this.isSetEMail();
+    boolean that_present_eMail = true && that.isSetEMail();
+    if (this_present_eMail || that_present_eMail) {
+      if (!(this_present_eMail && that_present_eMail))
+        return false;
+      if (!this.eMail.equals(that.eMail))
+        return false;
+    }
+
+    return true;
+  }
+
+  @Override
+  public int hashCode() {
+    return 0;
+  }
+
+  @Override
+  public int compareTo(UserInfo other) {
+    if (!getClass().equals(other.getClass())) {
+      return getClass().getName().compareTo(other.getClass().getName());
+    }
+
+    int lastComparison = 0;
+
+    lastComparison = Boolean.valueOf(isSetUserId()).compareTo(other.isSetUserId());
+    if (lastComparison != 0) {
+      return lastComparison;
+    }
+    if (isSetUserId()) {
+      lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.userId, other.userId);
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+    }
+    lastComparison = Boolean.valueOf(isSetFirstName()).compareTo(other.isSetFirstName());
+    if (lastComparison != 0) {
+      return lastComparison;
+    }
+    if (isSetFirstName()) {
+      lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.firstName, other.firstName);
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+    }
+    lastComparison = Boolean.valueOf(isSetLastName()).compareTo(other.isSetLastName());
+    if (lastComparison != 0) {
+      return lastComparison;
+    }
+    if (isSetLastName()) {
+      lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.lastName, other.lastName);
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+    }
+    lastComparison = Boolean.valueOf(isSetEMail()).compareTo(other.isSetEMail());
+    if (lastComparison != 0) {
+      return lastComparison;
+    }
+    if (isSetEMail()) {
+      lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.eMail, other.eMail);
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+    }
+    return 0;
+  }
+
+  public _Fields fieldForId(int fieldId) {
+    return _Fields.findByThriftId(fieldId);
+  }
+
+  public void read(org.apache.thrift.protocol.TProtocol iprot) throws org.apache.thrift.TException {
+    schemes.get(iprot.getScheme()).getScheme().read(iprot, this);
+  }
+
+  public void write(org.apache.thrift.protocol.TProtocol oprot) throws org.apache.thrift.TException {
+    schemes.get(oprot.getScheme()).getScheme().write(oprot, this);
+  }
+
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder("UserInfo(");
+    boolean first = true;
+
+    sb.append("userId:");
+    if (this.userId == null) {
+      sb.append("null");
+    } else {
+      sb.append(this.userId);
+    }
+    first = false;
+    if (!first) sb.append(", ");
+    sb.append("firstName:");
+    if (this.firstName == null) {
+      sb.append("null");
+    } else {
+      sb.append(this.firstName);
+    }
+    first = false;
+    if (!first) sb.append(", ");
+    sb.append("lastName:");
+    if (this.lastName == null) {
+      sb.append("null");
+    } else {
+      sb.append(this.lastName);
+    }
+    first = false;
+    if (!first) sb.append(", ");
+    sb.append("eMail:");
+    if (this.eMail == null) {
+      sb.append("null");
+    } else {
+      sb.append(this.eMail);
+    }
+    first = false;
+    sb.append(")");
+    return sb.toString();
+  }
+
+  public void validate() throws org.apache.thrift.TException {
+    // check for required fields
+    // check for sub-struct validity
+  }
+
+  private void writeObject(java.io.ObjectOutputStream out) throws java.io.IOException {
+    try {
+      write(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(out)));
+    } catch (org.apache.thrift.TException te) {
+      throw new java.io.IOException(te);
+    }
+  }
+
+  private void readObject(java.io.ObjectInputStream in) throws java.io.IOException, ClassNotFoundException {
+    try {
+      read(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(in)));
+    } catch (org.apache.thrift.TException te) {
+      throw new java.io.IOException(te);
+    }
+  }
+
+  private static class UserInfoStandardSchemeFactory implements SchemeFactory {
+    public UserInfoStandardScheme getScheme() {
+      return new UserInfoStandardScheme();
+    }
+  }
+
+  private static class UserInfoStandardScheme extends StandardScheme<UserInfo> {
+
+    public void read(org.apache.thrift.protocol.TProtocol iprot, UserInfo struct) throws org.apache.thrift.TException {
+      org.apache.thrift.protocol.TField schemeField;
+      iprot.readStructBegin();
+      while (true)
+      {
+        schemeField = iprot.readFieldBegin();
+        if (schemeField.type == org.apache.thrift.protocol.TType.STOP) { 
+          break;
+        }
+        switch (schemeField.id) {
+          case 1: // USER_ID
+            if (schemeField.type == org.apache.thrift.protocol.TType.STRING) {
+              struct.userId = iprot.readString();
+              struct.setUserIdIsSet(true);
+            } else { 
+              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+            }
+            break;
+          case 2: // FIRST_NAME
+            if (schemeField.type == org.apache.thrift.protocol.TType.STRING) {
+              struct.firstName = iprot.readString();
+              struct.setFirstNameIsSet(true);
+            } else { 
+              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+            }
+            break;
+          case 3: // LAST_NAME
+            if (schemeField.type == org.apache.thrift.protocol.TType.STRING) {
+              struct.lastName = iprot.readString();
+              struct.setLastNameIsSet(true);
+            } else { 
+              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+            }
+            break;
+          case 4: // E_MAIL
+            if (schemeField.type == org.apache.thrift.protocol.TType.STRING) {
+              struct.eMail = iprot.readString();
+              struct.setEMailIsSet(true);
+            } else { 
+              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+            }
+            break;
+          default:
+            org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+        }
+        iprot.readFieldEnd();
+      }
+      iprot.readStructEnd();
+
+      // check for required fields of primitive type, which can't be checked in the validate method
+      struct.validate();
+    }
+
+    public void write(org.apache.thrift.protocol.TProtocol oprot, UserInfo struct) throws org.apache.thrift.TException {
+      struct.validate();
+
+      oprot.writeStructBegin(STRUCT_DESC);
+      if (struct.userId != null) {
+        oprot.writeFieldBegin(USER_ID_FIELD_DESC);
+        oprot.writeString(struct.userId);
+        oprot.writeFieldEnd();
+      }
+      if (struct.firstName != null) {
+        oprot.writeFieldBegin(FIRST_NAME_FIELD_DESC);
+        oprot.writeString(struct.firstName);
+        oprot.writeFieldEnd();
+      }
+      if (struct.lastName != null) {
+        oprot.writeFieldBegin(LAST_NAME_FIELD_DESC);
+        oprot.writeString(struct.lastName);
+        oprot.writeFieldEnd();
+      }
+      if (struct.eMail != null) {
+        oprot.writeFieldBegin(E_MAIL_FIELD_DESC);
+        oprot.writeString(struct.eMail);
+        oprot.writeFieldEnd();
+      }
+      oprot.writeFieldStop();
+      oprot.writeStructEnd();
+    }
+
+  }
+
+  private static class UserInfoTupleSchemeFactory implements SchemeFactory {
+    public UserInfoTupleScheme getScheme() {
+      return new UserInfoTupleScheme();
+    }
+  }
+
+  private static class UserInfoTupleScheme extends TupleScheme<UserInfo> {
+
+    @Override
+    public void write(org.apache.thrift.protocol.TProtocol prot, UserInfo struct) throws org.apache.thrift.TException {
+      TTupleProtocol oprot = (TTupleProtocol) prot;
+      BitSet optionals = new BitSet();
+      if (struct.isSetUserId()) {
+        optionals.set(0);
+      }
+      if (struct.isSetFirstName()) {
+        optionals.set(1);
+      }
+      if (struct.isSetLastName()) {
+        optionals.set(2);
+      }
+      if (struct.isSetEMail()) {
+        optionals.set(3);
+      }
+      oprot.writeBitSet(optionals, 4);
+      if (struct.isSetUserId()) {
+        oprot.writeString(struct.userId);
+      }
+      if (struct.isSetFirstName()) {
+        oprot.writeString(struct.firstName);
+      }
+      if (struct.isSetLastName()) {
+        oprot.writeString(struct.lastName);
+      }
+      if (struct.isSetEMail()) {
+        oprot.writeString(struct.eMail);
+      }
+    }
+
+    @Override
+    public void read(org.apache.thrift.protocol.TProtocol prot, UserInfo struct) throws org.apache.thrift.TException {
+      TTupleProtocol iprot = (TTupleProtocol) prot;
+      BitSet incoming = iprot.readBitSet(4);
+      if (incoming.get(0)) {
+        struct.userId = iprot.readString();
+        struct.setUserIdIsSet(true);
+      }
+      if (incoming.get(1)) {
+        struct.firstName = iprot.readString();
+        struct.setFirstNameIsSet(true);
+      }
+      if (incoming.get(2)) {
+        struct.lastName = iprot.readString();
+        struct.setLastNameIsSet(true);
+      }
+      if (incoming.get(3)) {
+        struct.eMail = iprot.readString();
+        struct.setEMailIsSet(true);
+      }
+    }
+  }
+
+}
+
diff --git a/Dozentenmodul/src/thrift/communicate.thrift b/Dozentenmodul/src/thrift/communicate.thrift
deleted file mode 100644
index e69de29b..00000000
--- a/Dozentenmodul/src/thrift/communicate.thrift
+++ /dev/null