small changes

4 files changed, 2047 insertions, 13 deletions

diff --git a/src/main/java/org/openslx/imagemaster/thrift/iface/AuthenticationError.java b/src/main/java/org/openslx/imagemaster/thrift/iface/AuthenticationError.java
index 849989d..2fd9fcf 100644
--- a/src/main/java/org/openslx/imagemaster/thrift/iface/AuthenticationError.java
+++ b/src/main/java/org/openslx/imagemaster/thrift/iface/AuthenticationError.java
@@ -7,6 +7,9 @@
 package org.openslx.imagemaster.thrift.iface;
 
 
+import java.util.Map;
+import java.util.HashMap;
+import org.apache.thrift.TEnum;
 
 public enum AuthenticationError implements org.apache.thrift.TEnum {
   GENERIC_ERROR(0),
diff --git a/src/main/java/org/openslx/imagemaster/thrift/iface/AuthenticationException.java b/src/main/java/org/openslx/imagemaster/thrift/iface/AuthenticationException.java
index 24883c9..5efc66c 100644
--- a/src/main/java/org/openslx/imagemaster/thrift/iface/AuthenticationException.java
+++ b/src/main/java/org/openslx/imagemaster/thrift/iface/AuthenticationException.java
@@ -6,19 +6,31 @@
  */
 package org.openslx.imagemaster.thrift.iface;
 
-import java.util.BitSet;
-import java.util.Collections;
-import java.util.EnumMap;
-import java.util.EnumSet;
-import java.util.HashMap;
-import java.util.Map;
-
-import org.apache.thrift.TException;
-import org.apache.thrift.protocol.TTupleProtocol;
 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");
diff --git a/src/main/java/org/openslx/imagemaster/thrift/iface/ImageServer.java b/src/main/java/org/openslx/imagemaster/thrift/iface/ImageServer.java
index 2751dd6..6b863c3 100644
--- a/src/main/java/org/openslx/imagemaster/thrift/iface/ImageServer.java
+++ b/src/main/java/org/openslx/imagemaster/thrift/iface/ImageServer.java
@@ -50,6 +50,10 @@ public class ImageServer {
 
     public boolean finshedUpload(String ftpUser, ImageData imageDescription) throws ImageDataException, org.apache.thrift.TException;
 
+    public FtpCredentials getImage(String uuid, String serverSessionId) throws AuthorizationException, ImageDataException, org.apache.thrift.TException;
+
+    public boolean finishedDownload(String ftpUser) throws org.apache.thrift.TException;
+
   }
 
   public interface AsyncIface {
@@ -68,6 +72,10 @@ public class ImageServer {
 
     public void finshedUpload(String ftpUser, ImageData imageDescription, org.apache.thrift.async.AsyncMethodCallback resultHandler) throws org.apache.thrift.TException;
 
+    public void getImage(String uuid, String serverSessionId, org.apache.thrift.async.AsyncMethodCallback resultHandler) throws org.apache.thrift.TException;
+
+    public void finishedDownload(String ftpUser, org.apache.thrift.async.AsyncMethodCallback resultHandler) throws org.apache.thrift.TException;
+
   }
 
   public static class Client extends org.apache.thrift.TServiceClient implements Iface {
@@ -275,6 +283,59 @@ public class ImageServer {
       throw new org.apache.thrift.TApplicationException(org.apache.thrift.TApplicationException.MISSING_RESULT, "finshedUpload failed: unknown result");
     }
 
+    public FtpCredentials getImage(String uuid, String serverSessionId) throws AuthorizationException, ImageDataException, org.apache.thrift.TException
+    {
+      send_getImage(uuid, serverSessionId);
+      return recv_getImage();
+    }
+
+    public void send_getImage(String uuid, String serverSessionId) throws org.apache.thrift.TException
+    {
+      getImage_args args = new getImage_args();
+      args.setUuid(uuid);
+      args.setServerSessionId(serverSessionId);
+      sendBase("getImage", args);
+    }
+
+    public FtpCredentials recv_getImage() throws AuthorizationException, ImageDataException, org.apache.thrift.TException
+    {
+      getImage_result result = new getImage_result();
+      receiveBase(result, "getImage");
+      if (result.isSetSuccess()) {
+        return result.success;
+      }
+      if (result.failure != null) {
+        throw result.failure;
+      }
+      if (result.failure2 != null) {
+        throw result.failure2;
+      }
+      throw new org.apache.thrift.TApplicationException(org.apache.thrift.TApplicationException.MISSING_RESULT, "getImage failed: unknown result");
+    }
+
+    public boolean finishedDownload(String ftpUser) throws org.apache.thrift.TException
+    {
+      send_finishedDownload(ftpUser);
+      return recv_finishedDownload();
+    }
+
+    public void send_finishedDownload(String ftpUser) throws org.apache.thrift.TException
+    {
+      finishedDownload_args args = new finishedDownload_args();
+      args.setFtpUser(ftpUser);
+      sendBase("finishedDownload", args);
+    }
+
+    public boolean recv_finishedDownload() throws org.apache.thrift.TException
+    {
+      finishedDownload_result result = new finishedDownload_result();
+      receiveBase(result, "finishedDownload");
+      if (result.isSetSuccess()) {
+        return result.success;
+      }
+      throw new org.apache.thrift.TApplicationException(org.apache.thrift.TApplicationException.MISSING_RESULT, "finishedDownload 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> {
@@ -526,6 +587,73 @@ public class ImageServer {
       }
     }
 
+    public void getImage(String uuid, String serverSessionId, org.apache.thrift.async.AsyncMethodCallback resultHandler) throws org.apache.thrift.TException {
+      checkReady();
+      getImage_call method_call = new getImage_call(uuid, serverSessionId, resultHandler, this, ___protocolFactory, ___transport);
+      this.___currentMethod = method_call;
+      ___manager.call(method_call);
+    }
+
+    public static class getImage_call extends org.apache.thrift.async.TAsyncMethodCall {
+      private String uuid;
+      private String serverSessionId;
+      public getImage_call(String uuid, String serverSessionId, 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.uuid = uuid;
+        this.serverSessionId = serverSessionId;
+      }
+
+      public void write_args(org.apache.thrift.protocol.TProtocol prot) throws org.apache.thrift.TException {
+        prot.writeMessageBegin(new org.apache.thrift.protocol.TMessage("getImage", org.apache.thrift.protocol.TMessageType.CALL, 0));
+        getImage_args args = new getImage_args();
+        args.setUuid(uuid);
+        args.setServerSessionId(serverSessionId);
+        args.write(prot);
+        prot.writeMessageEnd();
+      }
+
+      public FtpCredentials getResult() throws AuthorizationException, ImageDataException, 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_getImage();
+      }
+    }
+
+    public void finishedDownload(String ftpUser, org.apache.thrift.async.AsyncMethodCallback resultHandler) throws org.apache.thrift.TException {
+      checkReady();
+      finishedDownload_call method_call = new finishedDownload_call(ftpUser, resultHandler, this, ___protocolFactory, ___transport);
+      this.___currentMethod = method_call;
+      ___manager.call(method_call);
+    }
+
+    public static class finishedDownload_call extends org.apache.thrift.async.TAsyncMethodCall {
+      private String ftpUser;
+      public finishedDownload_call(String ftpUser, 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.ftpUser = ftpUser;
+      }
+
+      public void write_args(org.apache.thrift.protocol.TProtocol prot) throws org.apache.thrift.TException {
+        prot.writeMessageBegin(new org.apache.thrift.protocol.TMessage("finishedDownload", org.apache.thrift.protocol.TMessageType.CALL, 0));
+        finishedDownload_args args = new finishedDownload_args();
+        args.setFtpUser(ftpUser);
+        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_finishedDownload();
+      }
+    }
+
   }
 
   public static class Processor<I extends Iface> extends org.apache.thrift.TBaseProcessor<I> implements org.apache.thrift.TProcessor {
@@ -546,6 +674,8 @@ public class ImageServer {
       processMap.put("serverAuthenticate", new serverAuthenticate());
       processMap.put("submitImage", new submitImage());
       processMap.put("finshedUpload", new finshedUpload());
+      processMap.put("getImage", new getImage());
+      processMap.put("finishedDownload", new finishedDownload());
       return processMap;
     }
 
@@ -717,6 +847,53 @@ public class ImageServer {
       }
     }
 
+    public static class getImage<I extends Iface> extends org.apache.thrift.ProcessFunction<I, getImage_args> {
+      public getImage() {
+        super("getImage");
+      }
+
+      public getImage_args getEmptyArgsInstance() {
+        return new getImage_args();
+      }
+
+      protected boolean isOneway() {
+        return false;
+      }
+
+      public getImage_result getResult(I iface, getImage_args args) throws org.apache.thrift.TException {
+        getImage_result result = new getImage_result();
+        try {
+          result.success = iface.getImage(args.uuid, args.serverSessionId);
+        } catch (AuthorizationException failure) {
+          result.failure = failure;
+        } catch (ImageDataException failure2) {
+          result.failure2 = failure2;
+        }
+        return result;
+      }
+    }
+
+    public static class finishedDownload<I extends Iface> extends org.apache.thrift.ProcessFunction<I, finishedDownload_args> {
+      public finishedDownload() {
+        super("finishedDownload");
+      }
+
+      public finishedDownload_args getEmptyArgsInstance() {
+        return new finishedDownload_args();
+      }
+
+      protected boolean isOneway() {
+        return false;
+      }
+
+      public finishedDownload_result getResult(I iface, finishedDownload_args args) throws org.apache.thrift.TException {
+        finishedDownload_result result = new finishedDownload_result();
+        result.success = iface.finishedDownload(args.ftpUser);
+        result.setSuccessIsSet(true);
+        return result;
+      }
+    }
+
   }
 
   public static class AsyncProcessor<I extends AsyncIface> extends org.apache.thrift.TBaseAsyncProcessor<I> {
@@ -737,6 +914,8 @@ public class ImageServer {
       processMap.put("serverAuthenticate", new serverAuthenticate());
       processMap.put("submitImage", new submitImage());
       processMap.put("finshedUpload", new finshedUpload());
+      processMap.put("getImage", new getImage());
+      processMap.put("finishedDownload", new finishedDownload());
       return processMap;
     }
 
@@ -1140,6 +1319,120 @@ public class ImageServer {
       }
     }
 
+    public static class getImage<I extends AsyncIface> extends org.apache.thrift.AsyncProcessFunction<I, getImage_args, FtpCredentials> {
+      public getImage() {
+        super("getImage");
+      }
+
+      public getImage_args getEmptyArgsInstance() {
+        return new getImage_args();
+      }
+
+      public AsyncMethodCallback<FtpCredentials> getResultHandler(final AsyncFrameBuffer fb, final int seqid) {
+        final org.apache.thrift.AsyncProcessFunction fcall = this;
+        return new AsyncMethodCallback<FtpCredentials>() { 
+          public void onComplete(FtpCredentials o) {
+            getImage_result result = new getImage_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;
+            getImage_result result = new getImage_result();
+            if (e instanceof AuthorizationException) {
+                        result.failure = (AuthorizationException) e;
+                        result.setFailureIsSet(true);
+                        msg = result;
+            }
+            else             if (e instanceof ImageDataException) {
+                        result.failure2 = (ImageDataException) e;
+                        result.setFailure2IsSet(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, getImage_args args, org.apache.thrift.async.AsyncMethodCallback<FtpCredentials> resultHandler) throws TException {
+        iface.getImage(args.uuid, args.serverSessionId,resultHandler);
+      }
+    }
+
+    public static class finishedDownload<I extends AsyncIface> extends org.apache.thrift.AsyncProcessFunction<I, finishedDownload_args, Boolean> {
+      public finishedDownload() {
+        super("finishedDownload");
+      }
+
+      public finishedDownload_args getEmptyArgsInstance() {
+        return new finishedDownload_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) {
+            finishedDownload_result result = new finishedDownload_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;
+            finishedDownload_result result = new finishedDownload_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, finishedDownload_args args, org.apache.thrift.async.AsyncMethodCallback<Boolean> resultHandler) throws TException {
+        iface.finishedDownload(args.ftpUser,resultHandler);
+      }
+    }
+
   }
 
   public static class ping_args implements org.apache.thrift.TBase<ping_args, ping_args._Fields>, java.io.Serializable, Cloneable, Comparable<ping_args>   {
@@ -7145,4 +7438,1729 @@ public class ImageServer {
 
   }
 
+  public static class getImage_args implements org.apache.thrift.TBase<getImage_args, getImage_args._Fields>, java.io.Serializable, Cloneable, Comparable<getImage_args>   {
+    private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("getImage_args");
+
+    private static final org.apache.thrift.protocol.TField UUID_FIELD_DESC = new org.apache.thrift.protocol.TField("uuid", org.apache.thrift.protocol.TType.STRING, (short)1);
+    private static final org.apache.thrift.protocol.TField SERVER_SESSION_ID_FIELD_DESC = new org.apache.thrift.protocol.TField("serverSessionId", 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 getImage_argsStandardSchemeFactory());
+      schemes.put(TupleScheme.class, new getImage_argsTupleSchemeFactory());
+    }
+
+    public String uuid; // required
+    public String serverSessionId; // 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 {
+      UUID((short)1, "uuid"),
+      SERVER_SESSION_ID((short)2, "serverSessionId");
+
+      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: // UUID
+            return UUID;
+          case 2: // SERVER_SESSION_ID
+            return SERVER_SESSION_ID;
+          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.UUID, new org.apache.thrift.meta_data.FieldMetaData("uuid", org.apache.thrift.TFieldRequirementType.DEFAULT, 
+          new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.STRING          , "UUID")));
+      tmpMap.put(_Fields.SERVER_SESSION_ID, new org.apache.thrift.meta_data.FieldMetaData("serverSessionId", 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(getImage_args.class, metaDataMap);
+    }
+
+    public getImage_args() {
+    }
+
+    public getImage_args(
+      String uuid,
+      String serverSessionId)
+    {
+      this();
+      this.uuid = uuid;
+      this.serverSessionId = serverSessionId;
+    }
+
+    /**
+     * Performs a deep copy on <i>other</i>.
+     */
+    public getImage_args(getImage_args other) {
+      if (other.isSetUuid()) {
+        this.uuid = other.uuid;
+      }
+      if (other.isSetServerSessionId()) {
+        this.serverSessionId = other.serverSessionId;
+      }
+    }
+
+    public getImage_args deepCopy() {
+      return new getImage_args(this);
+    }
+
+    @Override
+    public void clear() {
+      this.uuid = null;
+      this.serverSessionId = null;
+    }
+
+    public String getUuid() {
+      return this.uuid;
+    }
+
+    public getImage_args setUuid(String uuid) {
+      this.uuid = uuid;
+      return this;
+    }
+
+    public void unsetUuid() {
+      this.uuid = null;
+    }
+
+    /** Returns true if field uuid is set (has been assigned a value) and false otherwise */
+    public boolean isSetUuid() {
+      return this.uuid != null;
+    }
+
+    public void setUuidIsSet(boolean value) {
+      if (!value) {
+        this.uuid = null;
+      }
+    }
+
+    public String getServerSessionId() {
+      return this.serverSessionId;
+    }
+
+    public getImage_args setServerSessionId(String serverSessionId) {
+      this.serverSessionId = serverSessionId;
+      return this;
+    }
+
+    public void unsetServerSessionId() {
+      this.serverSessionId = null;
+    }
+
+    /** Returns true if field serverSessionId is set (has been assigned a value) and false otherwise */
+    public boolean isSetServerSessionId() {
+      return this.serverSessionId != null;
+    }
+
+    public void setServerSessionIdIsSet(boolean value) {
+      if (!value) {
+        this.serverSessionId = null;
+      }
+    }
+
+    public void setFieldValue(_Fields field, Object value) {
+      switch (field) {
+      case UUID:
+        if (value == null) {
+          unsetUuid();
+        } else {
+          setUuid((String)value);
+        }
+        break;
+
+      case SERVER_SESSION_ID:
+        if (value == null) {
+          unsetServerSessionId();
+        } else {
+          setServerSessionId((String)value);
+        }
+        break;
+
+      }
+    }
+
+    public Object getFieldValue(_Fields field) {
+      switch (field) {
+      case UUID:
+        return getUuid();
+
+      case SERVER_SESSION_ID:
+        return getServerSessionId();
+
+      }
+      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 UUID:
+        return isSetUuid();
+      case SERVER_SESSION_ID:
+        return isSetServerSessionId();
+      }
+      throw new IllegalStateException();
+    }
+
+    @Override
+    public boolean equals(Object that) {
+      if (that == null)
+        return false;
+      if (that instanceof getImage_args)
+        return this.equals((getImage_args)that);
+      return false;
+    }
+
+    public boolean equals(getImage_args that) {
+      if (that == null)
+        return false;
+
+      boolean this_present_uuid = true && this.isSetUuid();
+      boolean that_present_uuid = true && that.isSetUuid();
+      if (this_present_uuid || that_present_uuid) {
+        if (!(this_present_uuid && that_present_uuid))
+          return false;
+        if (!this.uuid.equals(that.uuid))
+          return false;
+      }
+
+      boolean this_present_serverSessionId = true && this.isSetServerSessionId();
+      boolean that_present_serverSessionId = true && that.isSetServerSessionId();
+      if (this_present_serverSessionId || that_present_serverSessionId) {
+        if (!(this_present_serverSessionId && that_present_serverSessionId))
+          return false;
+        if (!this.serverSessionId.equals(that.serverSessionId))
+          return false;
+      }
+
+      return true;
+    }
+
+    @Override
+    public int hashCode() {
+      return 0;
+    }
+
+    @Override
+    public int compareTo(getImage_args other) {
+      if (!getClass().equals(other.getClass())) {
+        return getClass().getName().compareTo(other.getClass().getName());
+      }
+
+      int lastComparison = 0;
+
+      lastComparison = Boolean.valueOf(isSetUuid()).compareTo(other.isSetUuid());
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+      if (isSetUuid()) {
+        lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.uuid, other.uuid);
+        if (lastComparison != 0) {
+          return lastComparison;
+        }
+      }
+      lastComparison = Boolean.valueOf(isSetServerSessionId()).compareTo(other.isSetServerSessionId());
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+      if (isSetServerSessionId()) {
+        lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.serverSessionId, other.serverSessionId);
+        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("getImage_args(");
+      boolean first = true;
+
+      sb.append("uuid:");
+      if (this.uuid == null) {
+        sb.append("null");
+      } else {
+        sb.append(this.uuid);
+      }
+      first = false;
+      if (!first) sb.append(", ");
+      sb.append("serverSessionId:");
+      if (this.serverSessionId == null) {
+        sb.append("null");
+      } else {
+        sb.append(this.serverSessionId);
+      }
+      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 getImage_argsStandardSchemeFactory implements SchemeFactory {
+      public getImage_argsStandardScheme getScheme() {
+        return new getImage_argsStandardScheme();
+      }
+    }
+
+    private static class getImage_argsStandardScheme extends StandardScheme<getImage_args> {
+
+      public void read(org.apache.thrift.protocol.TProtocol iprot, getImage_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: // UUID
+              if (schemeField.type == org.apache.thrift.protocol.TType.STRING) {
+                struct.uuid = iprot.readString();
+                struct.setUuidIsSet(true);
+              } else { 
+                org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+              }
+              break;
+            case 2: // SERVER_SESSION_ID
+              if (schemeField.type == org.apache.thrift.protocol.TType.STRING) {
+                struct.serverSessionId = iprot.readString();
+                struct.setServerSessionIdIsSet(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, getImage_args struct) throws org.apache.thrift.TException {
+        struct.validate();
+
+        oprot.writeStructBegin(STRUCT_DESC);
+        if (struct.uuid != null) {
+          oprot.writeFieldBegin(UUID_FIELD_DESC);
+          oprot.writeString(struct.uuid);
+          oprot.writeFieldEnd();
+        }
+        if (struct.serverSessionId != null) {
+          oprot.writeFieldBegin(SERVER_SESSION_ID_FIELD_DESC);
+          oprot.writeString(struct.serverSessionId);
+          oprot.writeFieldEnd();
+        }
+        oprot.writeFieldStop();
+        oprot.writeStructEnd();
+      }
+
+    }
+
+    private static class getImage_argsTupleSchemeFactory implements SchemeFactory {
+      public getImage_argsTupleScheme getScheme() {
+        return new getImage_argsTupleScheme();
+      }
+    }
+
+    private static class getImage_argsTupleScheme extends TupleScheme<getImage_args> {
+
+      @Override
+      public void write(org.apache.thrift.protocol.TProtocol prot, getImage_args struct) throws org.apache.thrift.TException {
+        TTupleProtocol oprot = (TTupleProtocol) prot;
+        BitSet optionals = new BitSet();
+        if (struct.isSetUuid()) {
+          optionals.set(0);
+        }
+        if (struct.isSetServerSessionId()) {
+          optionals.set(1);
+        }
+        oprot.writeBitSet(optionals, 2);
+        if (struct.isSetUuid()) {
+          oprot.writeString(struct.uuid);
+        }
+        if (struct.isSetServerSessionId()) {
+          oprot.writeString(struct.serverSessionId);
+        }
+      }
+
+      @Override
+      public void read(org.apache.thrift.protocol.TProtocol prot, getImage_args struct) throws org.apache.thrift.TException {
+        TTupleProtocol iprot = (TTupleProtocol) prot;
+        BitSet incoming = iprot.readBitSet(2);
+        if (incoming.get(0)) {
+          struct.uuid = iprot.readString();
+          struct.setUuidIsSet(true);
+        }
+        if (incoming.get(1)) {
+          struct.serverSessionId = iprot.readString();
+          struct.setServerSessionIdIsSet(true);
+        }
+      }
+    }
+
+  }
+
+  public static class getImage_result implements org.apache.thrift.TBase<getImage_result, getImage_result._Fields>, java.io.Serializable, Cloneable, Comparable<getImage_result>   {
+    private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("getImage_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 org.apache.thrift.protocol.TField FAILURE2_FIELD_DESC = new org.apache.thrift.protocol.TField("failure2", org.apache.thrift.protocol.TType.STRUCT, (short)2);
+
+    private static final Map<Class<? extends IScheme>, SchemeFactory> schemes = new HashMap<Class<? extends IScheme>, SchemeFactory>();
+    static {
+      schemes.put(StandardScheme.class, new getImage_resultStandardSchemeFactory());
+      schemes.put(TupleScheme.class, new getImage_resultTupleSchemeFactory());
+    }
+
+    public FtpCredentials success; // required
+    public AuthorizationException failure; // required
+    public ImageDataException failure2; // 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"),
+      FAILURE2((short)2, "failure2");
+
+      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;
+          case 2: // FAILURE2
+            return FAILURE2;
+          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, FtpCredentials.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)));
+      tmpMap.put(_Fields.FAILURE2, new org.apache.thrift.meta_data.FieldMetaData("failure2", 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(getImage_result.class, metaDataMap);
+    }
+
+    public getImage_result() {
+    }
+
+    public getImage_result(
+      FtpCredentials success,
+      AuthorizationException failure,
+      ImageDataException failure2)
+    {
+      this();
+      this.success = success;
+      this.failure = failure;
+      this.failure2 = failure2;
+    }
+
+    /**
+     * Performs a deep copy on <i>other</i>.
+     */
+    public getImage_result(getImage_result other) {
+      if (other.isSetSuccess()) {
+        this.success = new FtpCredentials(other.success);
+      }
+      if (other.isSetFailure()) {
+        this.failure = new AuthorizationException(other.failure);
+      }
+      if (other.isSetFailure2()) {
+        this.failure2 = new ImageDataException(other.failure2);
+      }
+    }
+
+    public getImage_result deepCopy() {
+      return new getImage_result(this);
+    }
+
+    @Override
+    public void clear() {
+      this.success = null;
+      this.failure = null;
+      this.failure2 = null;
+    }
+
+    public FtpCredentials getSuccess() {
+      return this.success;
+    }
+
+    public getImage_result setSuccess(FtpCredentials 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 AuthorizationException getFailure() {
+      return this.failure;
+    }
+
+    public getImage_result setFailure(AuthorizationException 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 ImageDataException getFailure2() {
+      return this.failure2;
+    }
+
+    public getImage_result setFailure2(ImageDataException failure2) {
+      this.failure2 = failure2;
+      return this;
+    }
+
+    public void unsetFailure2() {
+      this.failure2 = null;
+    }
+
+    /** Returns true if field failure2 is set (has been assigned a value) and false otherwise */
+    public boolean isSetFailure2() {
+      return this.failure2 != null;
+    }
+
+    public void setFailure2IsSet(boolean value) {
+      if (!value) {
+        this.failure2 = null;
+      }
+    }
+
+    public void setFieldValue(_Fields field, Object value) {
+      switch (field) {
+      case SUCCESS:
+        if (value == null) {
+          unsetSuccess();
+        } else {
+          setSuccess((FtpCredentials)value);
+        }
+        break;
+
+      case FAILURE:
+        if (value == null) {
+          unsetFailure();
+        } else {
+          setFailure((AuthorizationException)value);
+        }
+        break;
+
+      case FAILURE2:
+        if (value == null) {
+          unsetFailure2();
+        } else {
+          setFailure2((ImageDataException)value);
+        }
+        break;
+
+      }
+    }
+
+    public Object getFieldValue(_Fields field) {
+      switch (field) {
+      case SUCCESS:
+        return getSuccess();
+
+      case FAILURE:
+        return getFailure();
+
+      case FAILURE2:
+        return getFailure2();
+
+      }
+      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();
+      case FAILURE2:
+        return isSetFailure2();
+      }
+      throw new IllegalStateException();
+    }
+
+    @Override
+    public boolean equals(Object that) {
+      if (that == null)
+        return false;
+      if (that instanceof getImage_result)
+        return this.equals((getImage_result)that);
+      return false;
+    }
+
+    public boolean equals(getImage_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;
+      }
+
+      boolean this_present_failure2 = true && this.isSetFailure2();
+      boolean that_present_failure2 = true && that.isSetFailure2();
+      if (this_present_failure2 || that_present_failure2) {
+        if (!(this_present_failure2 && that_present_failure2))
+          return false;
+        if (!this.failure2.equals(that.failure2))
+          return false;
+      }
+
+      return true;
+    }
+
+    @Override
+    public int hashCode() {
+      return 0;
+    }
+
+    @Override
+    public int compareTo(getImage_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;
+        }
+      }
+      lastComparison = Boolean.valueOf(isSetFailure2()).compareTo(other.isSetFailure2());
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+      if (isSetFailure2()) {
+        lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.failure2, other.failure2);
+        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("getImage_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;
+      if (!first) sb.append(", ");
+      sb.append("failure2:");
+      if (this.failure2 == null) {
+        sb.append("null");
+      } else {
+        sb.append(this.failure2);
+      }
+      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 getImage_resultStandardSchemeFactory implements SchemeFactory {
+      public getImage_resultStandardScheme getScheme() {
+        return new getImage_resultStandardScheme();
+      }
+    }
+
+    private static class getImage_resultStandardScheme extends StandardScheme<getImage_result> {
+
+      public void read(org.apache.thrift.protocol.TProtocol iprot, getImage_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 FtpCredentials();
+                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 AuthorizationException();
+                struct.failure.read(iprot);
+                struct.setFailureIsSet(true);
+              } else { 
+                org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+              }
+              break;
+            case 2: // FAILURE2
+              if (schemeField.type == org.apache.thrift.protocol.TType.STRUCT) {
+                struct.failure2 = new ImageDataException();
+                struct.failure2.read(iprot);
+                struct.setFailure2IsSet(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, getImage_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();
+        }
+        if (struct.failure2 != null) {
+          oprot.writeFieldBegin(FAILURE2_FIELD_DESC);
+          struct.failure2.write(oprot);
+          oprot.writeFieldEnd();
+        }
+        oprot.writeFieldStop();
+        oprot.writeStructEnd();
+      }
+
+    }
+
+    private static class getImage_resultTupleSchemeFactory implements SchemeFactory {
+      public getImage_resultTupleScheme getScheme() {
+        return new getImage_resultTupleScheme();
+      }
+    }
+
+    private static class getImage_resultTupleScheme extends TupleScheme<getImage_result> {
+
+      @Override
+      public void write(org.apache.thrift.protocol.TProtocol prot, getImage_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);
+        }
+        if (struct.isSetFailure2()) {
+          optionals.set(2);
+        }
+        oprot.writeBitSet(optionals, 3);
+        if (struct.isSetSuccess()) {
+          struct.success.write(oprot);
+        }
+        if (struct.isSetFailure()) {
+          struct.failure.write(oprot);
+        }
+        if (struct.isSetFailure2()) {
+          struct.failure2.write(oprot);
+        }
+      }
+
+      @Override
+      public void read(org.apache.thrift.protocol.TProtocol prot, getImage_result struct) throws org.apache.thrift.TException {
+        TTupleProtocol iprot = (TTupleProtocol) prot;
+        BitSet incoming = iprot.readBitSet(3);
+        if (incoming.get(0)) {
+          struct.success = new FtpCredentials();
+          struct.success.read(iprot);
+          struct.setSuccessIsSet(true);
+        }
+        if (incoming.get(1)) {
+          struct.failure = new AuthorizationException();
+          struct.failure.read(iprot);
+          struct.setFailureIsSet(true);
+        }
+        if (incoming.get(2)) {
+          struct.failure2 = new ImageDataException();
+          struct.failure2.read(iprot);
+          struct.setFailure2IsSet(true);
+        }
+      }
+    }
+
+  }
+
+  public static class finishedDownload_args implements org.apache.thrift.TBase<finishedDownload_args, finishedDownload_args._Fields>, java.io.Serializable, Cloneable, Comparable<finishedDownload_args>   {
+    private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("finishedDownload_args");
+
+    private static final org.apache.thrift.protocol.TField FTP_USER_FIELD_DESC = new org.apache.thrift.protocol.TField("ftpUser", 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 finishedDownload_argsStandardSchemeFactory());
+      schemes.put(TupleScheme.class, new finishedDownload_argsTupleSchemeFactory());
+    }
+
+    public String ftpUser; // 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 {
+      FTP_USER((short)1, "ftpUser");
+
+      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: // FTP_USER
+            return FTP_USER;
+          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.FTP_USER, new org.apache.thrift.meta_data.FieldMetaData("ftpUser", 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(finishedDownload_args.class, metaDataMap);
+    }
+
+    public finishedDownload_args() {
+    }
+
+    public finishedDownload_args(
+      String ftpUser)
+    {
+      this();
+      this.ftpUser = ftpUser;
+    }
+
+    /**
+     * Performs a deep copy on <i>other</i>.
+     */
+    public finishedDownload_args(finishedDownload_args other) {
+      if (other.isSetFtpUser()) {
+        this.ftpUser = other.ftpUser;
+      }
+    }
+
+    public finishedDownload_args deepCopy() {
+      return new finishedDownload_args(this);
+    }
+
+    @Override
+    public void clear() {
+      this.ftpUser = null;
+    }
+
+    public String getFtpUser() {
+      return this.ftpUser;
+    }
+
+    public finishedDownload_args setFtpUser(String ftpUser) {
+      this.ftpUser = ftpUser;
+      return this;
+    }
+
+    public void unsetFtpUser() {
+      this.ftpUser = null;
+    }
+
+    /** Returns true if field ftpUser is set (has been assigned a value) and false otherwise */
+    public boolean isSetFtpUser() {
+      return this.ftpUser != null;
+    }
+
+    public void setFtpUserIsSet(boolean value) {
+      if (!value) {
+        this.ftpUser = null;
+      }
+    }
+
+    public void setFieldValue(_Fields field, Object value) {
+      switch (field) {
+      case FTP_USER:
+        if (value == null) {
+          unsetFtpUser();
+        } else {
+          setFtpUser((String)value);
+        }
+        break;
+
+      }
+    }
+
+    public Object getFieldValue(_Fields field) {
+      switch (field) {
+      case FTP_USER:
+        return getFtpUser();
+
+      }
+      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 FTP_USER:
+        return isSetFtpUser();
+      }
+      throw new IllegalStateException();
+    }
+
+    @Override
+    public boolean equals(Object that) {
+      if (that == null)
+        return false;
+      if (that instanceof finishedDownload_args)
+        return this.equals((finishedDownload_args)that);
+      return false;
+    }
+
+    public boolean equals(finishedDownload_args that) {
+      if (that == null)
+        return false;
+
+      boolean this_present_ftpUser = true && this.isSetFtpUser();
+      boolean that_present_ftpUser = true && that.isSetFtpUser();
+      if (this_present_ftpUser || that_present_ftpUser) {
+        if (!(this_present_ftpUser && that_present_ftpUser))
+          return false;
+        if (!this.ftpUser.equals(that.ftpUser))
+          return false;
+      }
+
+      return true;
+    }
+
+    @Override
+    public int hashCode() {
+      return 0;
+    }
+
+    @Override
+    public int compareTo(finishedDownload_args other) {
+      if (!getClass().equals(other.getClass())) {
+        return getClass().getName().compareTo(other.getClass().getName());
+      }
+
+      int lastComparison = 0;
+
+      lastComparison = Boolean.valueOf(isSetFtpUser()).compareTo(other.isSetFtpUser());
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+      if (isSetFtpUser()) {
+        lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.ftpUser, other.ftpUser);
+        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("finishedDownload_args(");
+      boolean first = true;
+
+      sb.append("ftpUser:");
+      if (this.ftpUser == null) {
+        sb.append("null");
+      } else {
+        sb.append(this.ftpUser);
+      }
+      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 finishedDownload_argsStandardSchemeFactory implements SchemeFactory {
+      public finishedDownload_argsStandardScheme getScheme() {
+        return new finishedDownload_argsStandardScheme();
+      }
+    }
+
+    private static class finishedDownload_argsStandardScheme extends StandardScheme<finishedDownload_args> {
+
+      public void read(org.apache.thrift.protocol.TProtocol iprot, finishedDownload_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: // FTP_USER
+              if (schemeField.type == org.apache.thrift.protocol.TType.STRING) {
+                struct.ftpUser = iprot.readString();
+                struct.setFtpUserIsSet(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, finishedDownload_args struct) throws org.apache.thrift.TException {
+        struct.validate();
+
+        oprot.writeStructBegin(STRUCT_DESC);
+        if (struct.ftpUser != null) {
+          oprot.writeFieldBegin(FTP_USER_FIELD_DESC);
+          oprot.writeString(struct.ftpUser);
+          oprot.writeFieldEnd();
+        }
+        oprot.writeFieldStop();
+        oprot.writeStructEnd();
+      }
+
+    }
+
+    private static class finishedDownload_argsTupleSchemeFactory implements SchemeFactory {
+      public finishedDownload_argsTupleScheme getScheme() {
+        return new finishedDownload_argsTupleScheme();
+      }
+    }
+
+    private static class finishedDownload_argsTupleScheme extends TupleScheme<finishedDownload_args> {
+
+      @Override
+      public void write(org.apache.thrift.protocol.TProtocol prot, finishedDownload_args struct) throws org.apache.thrift.TException {
+        TTupleProtocol oprot = (TTupleProtocol) prot;
+        BitSet optionals = new BitSet();
+        if (struct.isSetFtpUser()) {
+          optionals.set(0);
+        }
+        oprot.writeBitSet(optionals, 1);
+        if (struct.isSetFtpUser()) {
+          oprot.writeString(struct.ftpUser);
+        }
+      }
+
+      @Override
+      public void read(org.apache.thrift.protocol.TProtocol prot, finishedDownload_args struct) throws org.apache.thrift.TException {
+        TTupleProtocol iprot = (TTupleProtocol) prot;
+        BitSet incoming = iprot.readBitSet(1);
+        if (incoming.get(0)) {
+          struct.ftpUser = iprot.readString();
+          struct.setFtpUserIsSet(true);
+        }
+      }
+    }
+
+  }
+
+  public static class finishedDownload_result implements org.apache.thrift.TBase<finishedDownload_result, finishedDownload_result._Fields>, java.io.Serializable, Cloneable, Comparable<finishedDownload_result>   {
+    private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("finishedDownload_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 finishedDownload_resultStandardSchemeFactory());
+      schemes.put(TupleScheme.class, new finishedDownload_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(finishedDownload_result.class, metaDataMap);
+    }
+
+    public finishedDownload_result() {
+    }
+
+    public finishedDownload_result(
+      boolean success)
+    {
+      this();
+      this.success = success;
+      setSuccessIsSet(true);
+    }
+
+    /**
+     * Performs a deep copy on <i>other</i>.
+     */
+    public finishedDownload_result(finishedDownload_result other) {
+      __isset_bitfield = other.__isset_bitfield;
+      this.success = other.success;
+    }
+
+    public finishedDownload_result deepCopy() {
+      return new finishedDownload_result(this);
+    }
+
+    @Override
+    public void clear() {
+      setSuccessIsSet(false);
+      this.success = false;
+    }
+
+    public boolean isSuccess() {
+      return this.success;
+    }
+
+    public finishedDownload_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 finishedDownload_result)
+        return this.equals((finishedDownload_result)that);
+      return false;
+    }
+
+    public boolean equals(finishedDownload_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(finishedDownload_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("finishedDownload_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 finishedDownload_resultStandardSchemeFactory implements SchemeFactory {
+      public finishedDownload_resultStandardScheme getScheme() {
+        return new finishedDownload_resultStandardScheme();
+      }
+    }
+
+    private static class finishedDownload_resultStandardScheme extends StandardScheme<finishedDownload_result> {
+
+      public void read(org.apache.thrift.protocol.TProtocol iprot, finishedDownload_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, finishedDownload_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 finishedDownload_resultTupleSchemeFactory implements SchemeFactory {
+      public finishedDownload_resultTupleScheme getScheme() {
+        return new finishedDownload_resultTupleScheme();
+      }
+    }
+
+    private static class finishedDownload_resultTupleScheme extends TupleScheme<finishedDownload_result> {
+
+      @Override
+      public void write(org.apache.thrift.protocol.TProtocol prot, finishedDownload_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, finishedDownload_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/src/main/java/org/openslx/satellitedaemon/ftp/ThriftConnection.java b/src/main/java/org/openslx/satellitedaemon/ftp/ThriftConnection.java
index 0f28c39..0b22389 100644
--- a/src/main/java/org/openslx/satellitedaemon/ftp/ThriftConnection.java
+++ b/src/main/java/org/openslx/satellitedaemon/ftp/ThriftConnection.java
@@ -37,8 +37,8 @@ public class ThriftConnection
 	private static Logger log = Logger.getLogger( ThriftConnection.class );
 
 	/**
-	 * The method calls getConnection() to check if the connection is ok,
-	 * if so, it returns ftpCredential.
+	 * The method calls getConnection() to check if the connection is ok 
+	 * and to get the ServerSessionData. If connection is ok, it returns ftpCredential.
 	 * 
 	 * @return returns 'null' if there is a problem.
 	 */
@@ -122,6 +122,7 @@ public class ThriftConnection
 			String toEncrypt;
 			if ( theClient == null ) {
 				log.debug( "The client was null" );
+				return null;
 			}
 			try {
 				toEncrypt = theClient.startServerAuthentication( Globals.getPropertyString( PropString.THRIFTORGANIZATIONNAME) );
@@ -133,11 +134,11 @@ public class ThriftConnection
 				sSD = theClient.serverAuthenticate(
 						Globals.getPropertyString( PropString.THRIFTORGANIZATIONNAME), ByteBuffer.wrap( byteArray ) );
 			} catch ( ServerAuthenticationException e ) {
-				log.error( "ThriftConnection: Server Authetication was not sucessful." );
+				log.error( "ThriftConnection: ServerAuthenticationException: Server Authetication was not sucessful." );
 				e.printStackTrace();
 				return null;
 			} catch ( TException e ) {
-				log.error( "ThriftConnection: Server Authetication was not sucessful." );
+				log.error( "ThriftConnection: TExeption: Server Authetication was not sucessful." );
 				e.printStackTrace();
 				return null;
 			}