b

3 files changed, 960 insertions, 15 deletions

diff --git a/Dozentenmodulserver/src/server/Server.java b/Dozentenmodulserver/src/server/Server.java
index 82124b7b..d1d17435 100644
--- a/Dozentenmodulserver/src/server/Server.java
+++ b/Dozentenmodulserver/src/server/Server.java
@@ -68,6 +68,8 @@ public class Server {
 
     public boolean deleteImageServer(String id, String version) throws org.apache.thrift.TException;
 
+    public boolean connectedToLecture(String id, String version) throws org.apache.thrift.TException;
+
   }
 
   public interface AsyncIface {
@@ -104,6 +106,8 @@ public class Server {
 
     public void deleteImageServer(String id, String version, org.apache.thrift.async.AsyncMethodCallback resultHandler) throws org.apache.thrift.TException;
 
+    public void connectedToLecture(String id, String version, org.apache.thrift.async.AsyncMethodCallback resultHandler) throws org.apache.thrift.TException;
+
   }
 
   public static class Client extends org.apache.thrift.TServiceClient implements Iface {
@@ -539,6 +543,30 @@ public class Server {
       throw new org.apache.thrift.TApplicationException(org.apache.thrift.TApplicationException.MISSING_RESULT, "deleteImageServer failed: unknown result");
     }
 
+    public boolean connectedToLecture(String id, String version) throws org.apache.thrift.TException
+    {
+      send_connectedToLecture(id, version);
+      return recv_connectedToLecture();
+    }
+
+    public void send_connectedToLecture(String id, String version) throws org.apache.thrift.TException
+    {
+      connectedToLecture_args args = new connectedToLecture_args();
+      args.setId(id);
+      args.setVersion(version);
+      sendBase("connectedToLecture", args);
+    }
+
+    public boolean recv_connectedToLecture() throws org.apache.thrift.TException
+    {
+      connectedToLecture_result result = new connectedToLecture_result();
+      receiveBase(result, "connectedToLecture");
+      if (result.isSetSuccess()) {
+        return result.success;
+      }
+      throw new org.apache.thrift.TApplicationException(org.apache.thrift.TApplicationException.MISSING_RESULT, "connectedToLecture 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> {
@@ -1204,6 +1232,41 @@ public class Server {
       }
     }
 
+    public void connectedToLecture(String id, String version, org.apache.thrift.async.AsyncMethodCallback resultHandler) throws org.apache.thrift.TException {
+      checkReady();
+      connectedToLecture_call method_call = new connectedToLecture_call(id, version, resultHandler, this, ___protocolFactory, ___transport);
+      this.___currentMethod = method_call;
+      ___manager.call(method_call);
+    }
+
+    public static class connectedToLecture_call extends org.apache.thrift.async.TAsyncMethodCall {
+      private String id;
+      private String version;
+      public connectedToLecture_call(String id, String version, 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.id = id;
+        this.version = version;
+      }
+
+      public void write_args(org.apache.thrift.protocol.TProtocol prot) throws org.apache.thrift.TException {
+        prot.writeMessageBegin(new org.apache.thrift.protocol.TMessage("connectedToLecture", org.apache.thrift.protocol.TMessageType.CALL, 0));
+        connectedToLecture_args args = new connectedToLecture_args();
+        args.setId(id);
+        args.setVersion(version);
+        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_connectedToLecture();
+      }
+    }
+
   }
 
   public static class Processor<I extends Iface> extends org.apache.thrift.TBaseProcessor<I> implements org.apache.thrift.TProcessor {
@@ -1233,6 +1296,7 @@ public class Server {
       processMap.put("deleteImageData", new deleteImageData());
       processMap.put("updateLecturedata", new updateLecturedata());
       processMap.put("deleteImageServer", new deleteImageServer());
+      processMap.put("connectedToLecture", new connectedToLecture());
       return processMap;
     }
 
@@ -1564,6 +1628,27 @@ public class Server {
       }
     }
 
+    public static class connectedToLecture<I extends Iface> extends org.apache.thrift.ProcessFunction<I, connectedToLecture_args> {
+      public connectedToLecture() {
+        super("connectedToLecture");
+      }
+
+      public connectedToLecture_args getEmptyArgsInstance() {
+        return new connectedToLecture_args();
+      }
+
+      protected boolean isOneway() {
+        return false;
+      }
+
+      public connectedToLecture_result getResult(I iface, connectedToLecture_args args) throws org.apache.thrift.TException {
+        connectedToLecture_result result = new connectedToLecture_result();
+        result.success = iface.connectedToLecture(args.id, args.version);
+        result.setSuccessIsSet(true);
+        return result;
+      }
+    }
+
   }
 
   public static class AsyncProcessor<I extends AsyncIface> extends org.apache.thrift.TBaseAsyncProcessor<I> {
@@ -1593,6 +1678,7 @@ public class Server {
       processMap.put("deleteImageData", new deleteImageData());
       processMap.put("updateLecturedata", new updateLecturedata());
       processMap.put("deleteImageServer", new deleteImageServer());
+      processMap.put("connectedToLecture", new connectedToLecture());
       return processMap;
     }
 
@@ -2420,6 +2506,58 @@ public class Server {
       }
     }
 
+    public static class connectedToLecture<I extends AsyncIface> extends org.apache.thrift.AsyncProcessFunction<I, connectedToLecture_args, Boolean> {
+      public connectedToLecture() {
+        super("connectedToLecture");
+      }
+
+      public connectedToLecture_args getEmptyArgsInstance() {
+        return new connectedToLecture_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) {
+            connectedToLecture_result result = new connectedToLecture_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;
+            connectedToLecture_result result = new connectedToLecture_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, connectedToLecture_args args, org.apache.thrift.async.AsyncMethodCallback<Boolean> resultHandler) throws TException {
+        iface.connectedToLecture(args.id, args.version,resultHandler);
+      }
+    }
+
   }
 
   public static class getFtpUser_args implements org.apache.thrift.TBase<getFtpUser_args, getFtpUser_args._Fields>, java.io.Serializable, Cloneable, Comparable<getFtpUser_args>   {
@@ -18492,4 +18630,812 @@ public class Server {
 
   }
 
+  public static class connectedToLecture_args implements org.apache.thrift.TBase<connectedToLecture_args, connectedToLecture_args._Fields>, java.io.Serializable, Cloneable, Comparable<connectedToLecture_args>   {
+    private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("connectedToLecture_args");
+
+    private static final org.apache.thrift.protocol.TField ID_FIELD_DESC = new org.apache.thrift.protocol.TField("id", org.apache.thrift.protocol.TType.STRING, (short)-1);
+    private static final org.apache.thrift.protocol.TField VERSION_FIELD_DESC = new org.apache.thrift.protocol.TField("version", 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 connectedToLecture_argsStandardSchemeFactory());
+      schemes.put(TupleScheme.class, new connectedToLecture_argsTupleSchemeFactory());
+    }
+
+    public String id; // required
+    public String version; // 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 {
+      ID((short)-1, "id"),
+      VERSION((short)-2, "version");
+
+      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: // ID
+            return ID;
+          case -2: // VERSION
+            return VERSION;
+          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.ID, new org.apache.thrift.meta_data.FieldMetaData("id", org.apache.thrift.TFieldRequirementType.DEFAULT, 
+          new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.STRING)));
+      tmpMap.put(_Fields.VERSION, new org.apache.thrift.meta_data.FieldMetaData("version", 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(connectedToLecture_args.class, metaDataMap);
+    }
+
+    public connectedToLecture_args() {
+    }
+
+    public connectedToLecture_args(
+      String id,
+      String version)
+    {
+      this();
+      this.id = id;
+      this.version = version;
+    }
+
+    /**
+     * Performs a deep copy on <i>other</i>.
+     */
+    public connectedToLecture_args(connectedToLecture_args other) {
+      if (other.isSetId()) {
+        this.id = other.id;
+      }
+      if (other.isSetVersion()) {
+        this.version = other.version;
+      }
+    }
+
+    public connectedToLecture_args deepCopy() {
+      return new connectedToLecture_args(this);
+    }
+
+    @Override
+    public void clear() {
+      this.id = null;
+      this.version = null;
+    }
+
+    public String getId() {
+      return this.id;
+    }
+
+    public connectedToLecture_args setId(String id) {
+      this.id = id;
+      return this;
+    }
+
+    public void unsetId() {
+      this.id = null;
+    }
+
+    /** Returns true if field id is set (has been assigned a value) and false otherwise */
+    public boolean isSetId() {
+      return this.id != null;
+    }
+
+    public void setIdIsSet(boolean value) {
+      if (!value) {
+        this.id = null;
+      }
+    }
+
+    public String getVersion() {
+      return this.version;
+    }
+
+    public connectedToLecture_args setVersion(String version) {
+      this.version = version;
+      return this;
+    }
+
+    public void unsetVersion() {
+      this.version = null;
+    }
+
+    /** Returns true if field version is set (has been assigned a value) and false otherwise */
+    public boolean isSetVersion() {
+      return this.version != null;
+    }
+
+    public void setVersionIsSet(boolean value) {
+      if (!value) {
+        this.version = null;
+      }
+    }
+
+    public void setFieldValue(_Fields field, Object value) {
+      switch (field) {
+      case ID:
+        if (value == null) {
+          unsetId();
+        } else {
+          setId((String)value);
+        }
+        break;
+
+      case VERSION:
+        if (value == null) {
+          unsetVersion();
+        } else {
+          setVersion((String)value);
+        }
+        break;
+
+      }
+    }
+
+    public Object getFieldValue(_Fields field) {
+      switch (field) {
+      case ID:
+        return getId();
+
+      case VERSION:
+        return getVersion();
+
+      }
+      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 ID:
+        return isSetId();
+      case VERSION:
+        return isSetVersion();
+      }
+      throw new IllegalStateException();
+    }
+
+    @Override
+    public boolean equals(Object that) {
+      if (that == null)
+        return false;
+      if (that instanceof connectedToLecture_args)
+        return this.equals((connectedToLecture_args)that);
+      return false;
+    }
+
+    public boolean equals(connectedToLecture_args that) {
+      if (that == null)
+        return false;
+
+      boolean this_present_id = true && this.isSetId();
+      boolean that_present_id = true && that.isSetId();
+      if (this_present_id || that_present_id) {
+        if (!(this_present_id && that_present_id))
+          return false;
+        if (!this.id.equals(that.id))
+          return false;
+      }
+
+      boolean this_present_version = true && this.isSetVersion();
+      boolean that_present_version = true && that.isSetVersion();
+      if (this_present_version || that_present_version) {
+        if (!(this_present_version && that_present_version))
+          return false;
+        if (!this.version.equals(that.version))
+          return false;
+      }
+
+      return true;
+    }
+
+    @Override
+    public int hashCode() {
+      return 0;
+    }
+
+    @Override
+    public int compareTo(connectedToLecture_args other) {
+      if (!getClass().equals(other.getClass())) {
+        return getClass().getName().compareTo(other.getClass().getName());
+      }
+
+      int lastComparison = 0;
+
+      lastComparison = Boolean.valueOf(isSetId()).compareTo(other.isSetId());
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+      if (isSetId()) {
+        lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.id, other.id);
+        if (lastComparison != 0) {
+          return lastComparison;
+        }
+      }
+      lastComparison = Boolean.valueOf(isSetVersion()).compareTo(other.isSetVersion());
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+      if (isSetVersion()) {
+        lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.version, other.version);
+        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("connectedToLecture_args(");
+      boolean first = true;
+
+      sb.append("id:");
+      if (this.id == null) {
+        sb.append("null");
+      } else {
+        sb.append(this.id);
+      }
+      first = false;
+      if (!first) sb.append(", ");
+      sb.append("version:");
+      if (this.version == null) {
+        sb.append("null");
+      } else {
+        sb.append(this.version);
+      }
+      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 connectedToLecture_argsStandardSchemeFactory implements SchemeFactory {
+      public connectedToLecture_argsStandardScheme getScheme() {
+        return new connectedToLecture_argsStandardScheme();
+      }
+    }
+
+    private static class connectedToLecture_argsStandardScheme extends StandardScheme<connectedToLecture_args> {
+
+      public void read(org.apache.thrift.protocol.TProtocol iprot, connectedToLecture_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: // ID
+              if (schemeField.type == org.apache.thrift.protocol.TType.STRING) {
+                struct.id = iprot.readString();
+                struct.setIdIsSet(true);
+              } else { 
+                org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+              }
+              break;
+            case -2: // VERSION
+              if (schemeField.type == org.apache.thrift.protocol.TType.STRING) {
+                struct.version = iprot.readString();
+                struct.setVersionIsSet(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, connectedToLecture_args struct) throws org.apache.thrift.TException {
+        struct.validate();
+
+        oprot.writeStructBegin(STRUCT_DESC);
+        if (struct.version != null) {
+          oprot.writeFieldBegin(VERSION_FIELD_DESC);
+          oprot.writeString(struct.version);
+          oprot.writeFieldEnd();
+        }
+        if (struct.id != null) {
+          oprot.writeFieldBegin(ID_FIELD_DESC);
+          oprot.writeString(struct.id);
+          oprot.writeFieldEnd();
+        }
+        oprot.writeFieldStop();
+        oprot.writeStructEnd();
+      }
+
+    }
+
+    private static class connectedToLecture_argsTupleSchemeFactory implements SchemeFactory {
+      public connectedToLecture_argsTupleScheme getScheme() {
+        return new connectedToLecture_argsTupleScheme();
+      }
+    }
+
+    private static class connectedToLecture_argsTupleScheme extends TupleScheme<connectedToLecture_args> {
+
+      @Override
+      public void write(org.apache.thrift.protocol.TProtocol prot, connectedToLecture_args struct) throws org.apache.thrift.TException {
+        TTupleProtocol oprot = (TTupleProtocol) prot;
+        BitSet optionals = new BitSet();
+        if (struct.isSetId()) {
+          optionals.set(0);
+        }
+        if (struct.isSetVersion()) {
+          optionals.set(1);
+        }
+        oprot.writeBitSet(optionals, 2);
+        if (struct.isSetId()) {
+          oprot.writeString(struct.id);
+        }
+        if (struct.isSetVersion()) {
+          oprot.writeString(struct.version);
+        }
+      }
+
+      @Override
+      public void read(org.apache.thrift.protocol.TProtocol prot, connectedToLecture_args struct) throws org.apache.thrift.TException {
+        TTupleProtocol iprot = (TTupleProtocol) prot;
+        BitSet incoming = iprot.readBitSet(2);
+        if (incoming.get(0)) {
+          struct.id = iprot.readString();
+          struct.setIdIsSet(true);
+        }
+        if (incoming.get(1)) {
+          struct.version = iprot.readString();
+          struct.setVersionIsSet(true);
+        }
+      }
+    }
+
+  }
+
+  public static class connectedToLecture_result implements org.apache.thrift.TBase<connectedToLecture_result, connectedToLecture_result._Fields>, java.io.Serializable, Cloneable, Comparable<connectedToLecture_result>   {
+    private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("connectedToLecture_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 connectedToLecture_resultStandardSchemeFactory());
+      schemes.put(TupleScheme.class, new connectedToLecture_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(connectedToLecture_result.class, metaDataMap);
+    }
+
+    public connectedToLecture_result() {
+    }
+
+    public connectedToLecture_result(
+      boolean success)
+    {
+      this();
+      this.success = success;
+      setSuccessIsSet(true);
+    }
+
+    /**
+     * Performs a deep copy on <i>other</i>.
+     */
+    public connectedToLecture_result(connectedToLecture_result other) {
+      __isset_bitfield = other.__isset_bitfield;
+      this.success = other.success;
+    }
+
+    public connectedToLecture_result deepCopy() {
+      return new connectedToLecture_result(this);
+    }
+
+    @Override
+    public void clear() {
+      setSuccessIsSet(false);
+      this.success = false;
+    }
+
+    public boolean isSuccess() {
+      return this.success;
+    }
+
+    public connectedToLecture_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 connectedToLecture_result)
+        return this.equals((connectedToLecture_result)that);
+      return false;
+    }
+
+    public boolean equals(connectedToLecture_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(connectedToLecture_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("connectedToLecture_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 connectedToLecture_resultStandardSchemeFactory implements SchemeFactory {
+      public connectedToLecture_resultStandardScheme getScheme() {
+        return new connectedToLecture_resultStandardScheme();
+      }
+    }
+
+    private static class connectedToLecture_resultStandardScheme extends StandardScheme<connectedToLecture_result> {
+
+      public void read(org.apache.thrift.protocol.TProtocol iprot, connectedToLecture_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, connectedToLecture_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 connectedToLecture_resultTupleSchemeFactory implements SchemeFactory {
+      public connectedToLecture_resultTupleScheme getScheme() {
+        return new connectedToLecture_resultTupleScheme();
+      }
+    }
+
+    private static class connectedToLecture_resultTupleScheme extends TupleScheme<connectedToLecture_result> {
+
+      @Override
+      public void write(org.apache.thrift.protocol.TProtocol prot, connectedToLecture_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, connectedToLecture_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);
+        }
+      }
+    }
+
+  }
+
 }
diff --git a/Dozentenmodulserver/src/server/ServerHandler.java b/Dozentenmodulserver/src/server/ServerHandler.java
index a67f1e05..8a88a0bf 100644
--- a/Dozentenmodulserver/src/server/ServerHandler.java
+++ b/Dozentenmodulserver/src/server/ServerHandler.java
@@ -397,12 +397,14 @@ public class ServerHandler implements Server.Iface {
 		return sql.deleteImage(con, id, version);
 	}
 
-
-	/*@Override
-	public boolean connectedToEvents(String imageid, String imageversion)
+	@Override
+	public boolean connectedToLecture(String id, String version)
 			throws TException {
-		
-		return sql.connectedToEvents(con, imageid, imageversion);
-	}*/
+		// TODO Auto-generated method stub
+		return sql.connectedToLecture(con, id, version);
+	}
+
+
+
 
 }
diff --git a/Dozentenmodulserver/src/sql/SQL.java b/Dozentenmodulserver/src/sql/SQL.java
index a68e20a2..f03e2c84 100644
--- a/Dozentenmodulserver/src/sql/SQL.java
+++ b/Dozentenmodulserver/src/sql/SQL.java
@@ -507,22 +507,19 @@ public class SQL {
 

 	}

 

-	public boolean connectedToEvents(Connection con, String id, String version) {

+	public boolean connectedToLecture(Connection con, String id, String version) {

 

 		try {

 

 			Statement stm = con.createStatement();

 

 			ResultSet rs = stm

-					.executeQuery("SELECT ...VERANSTALTUNG_VERKNÜPFUNG... FROM "

-							+ "bwLehrpool.m_VLData_imageInfo where GUID_imageID = '"

-							+ id

-							+ "' "

-							+ "AND imageVersion = '"

-							+ version

-							+ "';");

+					.executeQuery("SELECT lectureID FROM "

+							+ "bwLehrpool.m_VLDatalecture where imageID = '"

+							+ id + "' " + "AND imageVersion = '"

+							+ version + "';");

 

-			return !rs.wasNull();

+			return rs.first();

 

 		} catch (SQLException e) {

 			// TODO Auto-generated catch block