http://git-wip-us.apache.org/repos/asf/airavata/blob/b490671e/airavata-api/airavata-api-stubs/src/main/java/org/apache/airavata/model/messaging/event/TaskOutputChangeEvent.java
----------------------------------------------------------------------
diff --git 
a/airavata-api/airavata-api-stubs/src/main/java/org/apache/airavata/model/messaging/event/TaskOutputChangeEvent.java
 
b/airavata-api/airavata-api-stubs/src/main/java/org/apache/airavata/model/messaging/event/TaskOutputChangeEvent.java
deleted file mode 100644
index da436b2..0000000
--- 
a/airavata-api/airavata-api-stubs/src/main/java/org/apache/airavata/model/messaging/event/TaskOutputChangeEvent.java
+++ /dev/null
@@ -1,568 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/**
- * Autogenerated by Thrift Compiler (0.9.2)
- *
- * DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING
- *  @generated
- */
-package org.apache.airavata.model.messaging.event;
-
-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 javax.annotation.Generated;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-@SuppressWarnings({"cast", "rawtypes", "serial", "unchecked"})
-@Generated(value = "Autogenerated by Thrift Compiler (0.9.2)", date = 
"2015-12-2")
-public class TaskOutputChangeEvent implements 
org.apache.thrift.TBase<TaskOutputChangeEvent, TaskOutputChangeEvent._Fields>, 
java.io.Serializable, Cloneable, Comparable<TaskOutputChangeEvent> {
-  private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new 
org.apache.thrift.protocol.TStruct("TaskOutputChangeEvent");
-
-  private static final org.apache.thrift.protocol.TField OUTPUT_FIELD_DESC = 
new org.apache.thrift.protocol.TField("output", 
org.apache.thrift.protocol.TType.LIST, (short)1);
-  private static final org.apache.thrift.protocol.TField 
TASK_IDENTITY_FIELD_DESC = new 
org.apache.thrift.protocol.TField("taskIdentity", 
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 
TaskOutputChangeEventStandardSchemeFactory());
-    schemes.put(TupleScheme.class, new 
TaskOutputChangeEventTupleSchemeFactory());
-  }
-
-  public List<org.apache.airavata.model.application.io.OutputDataObjectType> 
output; // required
-  public TaskIdentifier taskIdentity; // 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 {
-    OUTPUT((short)1, "output"),
-    TASK_IDENTITY((short)2, "taskIdentity");
-
-    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: // OUTPUT
-          return OUTPUT;
-        case 2: // TASK_IDENTITY
-          return TASK_IDENTITY;
-        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.OUTPUT, new 
org.apache.thrift.meta_data.FieldMetaData("output", 
org.apache.thrift.TFieldRequirementType.REQUIRED, 
-        new 
org.apache.thrift.meta_data.ListMetaData(org.apache.thrift.protocol.TType.LIST, 
-            new 
org.apache.thrift.meta_data.StructMetaData(org.apache.thrift.protocol.TType.STRUCT,
 org.apache.airavata.model.application.io.OutputDataObjectType.class))));
-    tmpMap.put(_Fields.TASK_IDENTITY, new 
org.apache.thrift.meta_data.FieldMetaData("taskIdentity", 
org.apache.thrift.TFieldRequirementType.REQUIRED, 
-        new 
org.apache.thrift.meta_data.StructMetaData(org.apache.thrift.protocol.TType.STRUCT,
 TaskIdentifier.class)));
-    metaDataMap = Collections.unmodifiableMap(tmpMap);
-    
org.apache.thrift.meta_data.FieldMetaData.addStructMetaDataMap(TaskOutputChangeEvent.class,
 metaDataMap);
-  }
-
-  public TaskOutputChangeEvent() {
-  }
-
-  public TaskOutputChangeEvent(
-    List<org.apache.airavata.model.application.io.OutputDataObjectType> output,
-    TaskIdentifier taskIdentity)
-  {
-    this();
-    this.output = output;
-    this.taskIdentity = taskIdentity;
-  }
-
-  /**
-   * Performs a deep copy on <i>other</i>.
-   */
-  public TaskOutputChangeEvent(TaskOutputChangeEvent other) {
-    if (other.isSetOutput()) {
-      List<org.apache.airavata.model.application.io.OutputDataObjectType> 
__this__output = new 
ArrayList<org.apache.airavata.model.application.io.OutputDataObjectType>(other.output.size());
-      for (org.apache.airavata.model.application.io.OutputDataObjectType 
other_element : other.output) {
-        __this__output.add(new 
org.apache.airavata.model.application.io.OutputDataObjectType(other_element));
-      }
-      this.output = __this__output;
-    }
-    if (other.isSetTaskIdentity()) {
-      this.taskIdentity = new TaskIdentifier(other.taskIdentity);
-    }
-  }
-
-  public TaskOutputChangeEvent deepCopy() {
-    return new TaskOutputChangeEvent(this);
-  }
-
-  @Override
-  public void clear() {
-    this.output = null;
-    this.taskIdentity = null;
-  }
-
-  public int getOutputSize() {
-    return (this.output == null) ? 0 : this.output.size();
-  }
-
-  public 
java.util.Iterator<org.apache.airavata.model.application.io.OutputDataObjectType>
 getOutputIterator() {
-    return (this.output == null) ? null : this.output.iterator();
-  }
-
-  public void 
addToOutput(org.apache.airavata.model.application.io.OutputDataObjectType elem) 
{
-    if (this.output == null) {
-      this.output = new 
ArrayList<org.apache.airavata.model.application.io.OutputDataObjectType>();
-    }
-    this.output.add(elem);
-  }
-
-  public List<org.apache.airavata.model.application.io.OutputDataObjectType> 
getOutput() {
-    return this.output;
-  }
-
-  public TaskOutputChangeEvent 
setOutput(List<org.apache.airavata.model.application.io.OutputDataObjectType> 
output) {
-    this.output = output;
-    return this;
-  }
-
-  public void unsetOutput() {
-    this.output = null;
-  }
-
-  /** Returns true if field output is set (has been assigned a value) and 
false otherwise */
-  public boolean isSetOutput() {
-    return this.output != null;
-  }
-
-  public void setOutputIsSet(boolean value) {
-    if (!value) {
-      this.output = null;
-    }
-  }
-
-  public TaskIdentifier getTaskIdentity() {
-    return this.taskIdentity;
-  }
-
-  public TaskOutputChangeEvent setTaskIdentity(TaskIdentifier taskIdentity) {
-    this.taskIdentity = taskIdentity;
-    return this;
-  }
-
-  public void unsetTaskIdentity() {
-    this.taskIdentity = null;
-  }
-
-  /** Returns true if field taskIdentity is set (has been assigned a value) 
and false otherwise */
-  public boolean isSetTaskIdentity() {
-    return this.taskIdentity != null;
-  }
-
-  public void setTaskIdentityIsSet(boolean value) {
-    if (!value) {
-      this.taskIdentity = null;
-    }
-  }
-
-  public void setFieldValue(_Fields field, Object value) {
-    switch (field) {
-    case OUTPUT:
-      if (value == null) {
-        unsetOutput();
-      } else {
-        
setOutput((List<org.apache.airavata.model.application.io.OutputDataObjectType>)value);
-      }
-      break;
-
-    case TASK_IDENTITY:
-      if (value == null) {
-        unsetTaskIdentity();
-      } else {
-        setTaskIdentity((TaskIdentifier)value);
-      }
-      break;
-
-    }
-  }
-
-  public Object getFieldValue(_Fields field) {
-    switch (field) {
-    case OUTPUT:
-      return getOutput();
-
-    case TASK_IDENTITY:
-      return getTaskIdentity();
-
-    }
-    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 OUTPUT:
-      return isSetOutput();
-    case TASK_IDENTITY:
-      return isSetTaskIdentity();
-    }
-    throw new IllegalStateException();
-  }
-
-  @Override
-  public boolean equals(Object that) {
-    if (that == null)
-      return false;
-    if (that instanceof TaskOutputChangeEvent)
-      return this.equals((TaskOutputChangeEvent)that);
-    return false;
-  }
-
-  public boolean equals(TaskOutputChangeEvent that) {
-    if (that == null)
-      return false;
-
-    boolean this_present_output = true && this.isSetOutput();
-    boolean that_present_output = true && that.isSetOutput();
-    if (this_present_output || that_present_output) {
-      if (!(this_present_output && that_present_output))
-        return false;
-      if (!this.output.equals(that.output))
-        return false;
-    }
-
-    boolean this_present_taskIdentity = true && this.isSetTaskIdentity();
-    boolean that_present_taskIdentity = true && that.isSetTaskIdentity();
-    if (this_present_taskIdentity || that_present_taskIdentity) {
-      if (!(this_present_taskIdentity && that_present_taskIdentity))
-        return false;
-      if (!this.taskIdentity.equals(that.taskIdentity))
-        return false;
-    }
-
-    return true;
-  }
-
-  @Override
-  public int hashCode() {
-    List<Object> list = new ArrayList<Object>();
-
-    boolean present_output = true && (isSetOutput());
-    list.add(present_output);
-    if (present_output)
-      list.add(output);
-
-    boolean present_taskIdentity = true && (isSetTaskIdentity());
-    list.add(present_taskIdentity);
-    if (present_taskIdentity)
-      list.add(taskIdentity);
-
-    return list.hashCode();
-  }
-
-  @Override
-  public int compareTo(TaskOutputChangeEvent other) {
-    if (!getClass().equals(other.getClass())) {
-      return getClass().getName().compareTo(other.getClass().getName());
-    }
-
-    int lastComparison = 0;
-
-    lastComparison = 
Boolean.valueOf(isSetOutput()).compareTo(other.isSetOutput());
-    if (lastComparison != 0) {
-      return lastComparison;
-    }
-    if (isSetOutput()) {
-      lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.output, 
other.output);
-      if (lastComparison != 0) {
-        return lastComparison;
-      }
-    }
-    lastComparison = 
Boolean.valueOf(isSetTaskIdentity()).compareTo(other.isSetTaskIdentity());
-    if (lastComparison != 0) {
-      return lastComparison;
-    }
-    if (isSetTaskIdentity()) {
-      lastComparison = 
org.apache.thrift.TBaseHelper.compareTo(this.taskIdentity, other.taskIdentity);
-      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("TaskOutputChangeEvent(");
-    boolean first = true;
-
-    sb.append("output:");
-    if (this.output == null) {
-      sb.append("null");
-    } else {
-      sb.append(this.output);
-    }
-    first = false;
-    if (!first) sb.append(", ");
-    sb.append("taskIdentity:");
-    if (this.taskIdentity == null) {
-      sb.append("null");
-    } else {
-      sb.append(this.taskIdentity);
-    }
-    first = false;
-    sb.append(")");
-    return sb.toString();
-  }
-
-  public void validate() throws org.apache.thrift.TException {
-    // check for required fields
-    if (output == null) {
-      throw new org.apache.thrift.protocol.TProtocolException("Required field 
'output' was not present! Struct: " + toString());
-    }
-    if (taskIdentity == null) {
-      throw new org.apache.thrift.protocol.TProtocolException("Required field 
'taskIdentity' was not present! Struct: " + toString());
-    }
-    // check for sub-struct validity
-    if (taskIdentity != null) {
-      taskIdentity.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 TaskOutputChangeEventStandardSchemeFactory implements 
SchemeFactory {
-    public TaskOutputChangeEventStandardScheme getScheme() {
-      return new TaskOutputChangeEventStandardScheme();
-    }
-  }
-
-  private static class TaskOutputChangeEventStandardScheme extends 
StandardScheme<TaskOutputChangeEvent> {
-
-    public void read(org.apache.thrift.protocol.TProtocol iprot, 
TaskOutputChangeEvent 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: // OUTPUT
-            if (schemeField.type == org.apache.thrift.protocol.TType.LIST) {
-              {
-                org.apache.thrift.protocol.TList _list0 = 
iprot.readListBegin();
-                struct.output = new 
ArrayList<org.apache.airavata.model.application.io.OutputDataObjectType>(_list0.size);
-                org.apache.airavata.model.application.io.OutputDataObjectType 
_elem1;
-                for (int _i2 = 0; _i2 < _list0.size; ++_i2)
-                {
-                  _elem1 = new 
org.apache.airavata.model.application.io.OutputDataObjectType();
-                  _elem1.read(iprot);
-                  struct.output.add(_elem1);
-                }
-                iprot.readListEnd();
-              }
-              struct.setOutputIsSet(true);
-            } else { 
-              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, 
schemeField.type);
-            }
-            break;
-          case 2: // TASK_IDENTITY
-            if (schemeField.type == org.apache.thrift.protocol.TType.STRUCT) {
-              struct.taskIdentity = new TaskIdentifier();
-              struct.taskIdentity.read(iprot);
-              struct.setTaskIdentityIsSet(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, 
TaskOutputChangeEvent struct) throws org.apache.thrift.TException {
-      struct.validate();
-
-      oprot.writeStructBegin(STRUCT_DESC);
-      if (struct.output != null) {
-        oprot.writeFieldBegin(OUTPUT_FIELD_DESC);
-        {
-          oprot.writeListBegin(new 
org.apache.thrift.protocol.TList(org.apache.thrift.protocol.TType.STRUCT, 
struct.output.size()));
-          for (org.apache.airavata.model.application.io.OutputDataObjectType 
_iter3 : struct.output)
-          {
-            _iter3.write(oprot);
-          }
-          oprot.writeListEnd();
-        }
-        oprot.writeFieldEnd();
-      }
-      if (struct.taskIdentity != null) {
-        oprot.writeFieldBegin(TASK_IDENTITY_FIELD_DESC);
-        struct.taskIdentity.write(oprot);
-        oprot.writeFieldEnd();
-      }
-      oprot.writeFieldStop();
-      oprot.writeStructEnd();
-    }
-
-  }
-
-  private static class TaskOutputChangeEventTupleSchemeFactory implements 
SchemeFactory {
-    public TaskOutputChangeEventTupleScheme getScheme() {
-      return new TaskOutputChangeEventTupleScheme();
-    }
-  }
-
-  private static class TaskOutputChangeEventTupleScheme extends 
TupleScheme<TaskOutputChangeEvent> {
-
-    @Override
-    public void write(org.apache.thrift.protocol.TProtocol prot, 
TaskOutputChangeEvent struct) throws org.apache.thrift.TException {
-      TTupleProtocol oprot = (TTupleProtocol) prot;
-      {
-        oprot.writeI32(struct.output.size());
-        for (org.apache.airavata.model.application.io.OutputDataObjectType 
_iter4 : struct.output)
-        {
-          _iter4.write(oprot);
-        }
-      }
-      struct.taskIdentity.write(oprot);
-    }
-
-    @Override
-    public void read(org.apache.thrift.protocol.TProtocol prot, 
TaskOutputChangeEvent struct) throws org.apache.thrift.TException {
-      TTupleProtocol iprot = (TTupleProtocol) prot;
-      {
-        org.apache.thrift.protocol.TList _list5 = new 
org.apache.thrift.protocol.TList(org.apache.thrift.protocol.TType.STRUCT, 
iprot.readI32());
-        struct.output = new 
ArrayList<org.apache.airavata.model.application.io.OutputDataObjectType>(_list5.size);
-        org.apache.airavata.model.application.io.OutputDataObjectType _elem6;
-        for (int _i7 = 0; _i7 < _list5.size; ++_i7)
-        {
-          _elem6 = new 
org.apache.airavata.model.application.io.OutputDataObjectType();
-          _elem6.read(iprot);
-          struct.output.add(_elem6);
-        }
-      }
-      struct.setOutputIsSet(true);
-      struct.taskIdentity = new TaskIdentifier();
-      struct.taskIdentity.read(iprot);
-      struct.setTaskIdentityIsSet(true);
-    }
-  }
-
-}
-

http://git-wip-us.apache.org/repos/asf/airavata/blob/b490671e/airavata-api/airavata-api-stubs/src/main/java/org/apache/airavata/model/messaging/event/TaskStatusChangeEvent.java
----------------------------------------------------------------------
diff --git 
a/airavata-api/airavata-api-stubs/src/main/java/org/apache/airavata/model/messaging/event/TaskStatusChangeEvent.java
 
b/airavata-api/airavata-api-stubs/src/main/java/org/apache/airavata/model/messaging/event/TaskStatusChangeEvent.java
deleted file mode 100644
index 8420e72..0000000
--- 
a/airavata-api/airavata-api-stubs/src/main/java/org/apache/airavata/model/messaging/event/TaskStatusChangeEvent.java
+++ /dev/null
@@ -1,530 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/**
- * Autogenerated by Thrift Compiler (0.9.2)
- *
- * DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING
- *  @generated
- */
-package org.apache.airavata.model.messaging.event;
-
-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 javax.annotation.Generated;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-@SuppressWarnings({"cast", "rawtypes", "serial", "unchecked"})
-@Generated(value = "Autogenerated by Thrift Compiler (0.9.2)", date = 
"2015-12-2")
-public class TaskStatusChangeEvent implements 
org.apache.thrift.TBase<TaskStatusChangeEvent, TaskStatusChangeEvent._Fields>, 
java.io.Serializable, Cloneable, Comparable<TaskStatusChangeEvent> {
-  private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new 
org.apache.thrift.protocol.TStruct("TaskStatusChangeEvent");
-
-  private static final org.apache.thrift.protocol.TField STATE_FIELD_DESC = 
new org.apache.thrift.protocol.TField("state", 
org.apache.thrift.protocol.TType.I32, (short)1);
-  private static final org.apache.thrift.protocol.TField 
TASK_IDENTITY_FIELD_DESC = new 
org.apache.thrift.protocol.TField("taskIdentity", 
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 
TaskStatusChangeEventStandardSchemeFactory());
-    schemes.put(TupleScheme.class, new 
TaskStatusChangeEventTupleSchemeFactory());
-  }
-
-  /**
-   * 
-   * @see org.apache.airavata.model.status.TaskState
-   */
-  public org.apache.airavata.model.status.TaskState state; // required
-  public TaskIdentifier taskIdentity; // required
-
-  /** The set of fields this struct contains, along with convenience methods 
for finding and manipulating them. */
-  public enum _Fields implements org.apache.thrift.TFieldIdEnum {
-    /**
-     * 
-     * @see org.apache.airavata.model.status.TaskState
-     */
-    STATE((short)1, "state"),
-    TASK_IDENTITY((short)2, "taskIdentity");
-
-    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: // STATE
-          return STATE;
-        case 2: // TASK_IDENTITY
-          return TASK_IDENTITY;
-        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.STATE, new 
org.apache.thrift.meta_data.FieldMetaData("state", 
org.apache.thrift.TFieldRequirementType.REQUIRED, 
-        new 
org.apache.thrift.meta_data.EnumMetaData(org.apache.thrift.protocol.TType.ENUM, 
org.apache.airavata.model.status.TaskState.class)));
-    tmpMap.put(_Fields.TASK_IDENTITY, new 
org.apache.thrift.meta_data.FieldMetaData("taskIdentity", 
org.apache.thrift.TFieldRequirementType.REQUIRED, 
-        new 
org.apache.thrift.meta_data.StructMetaData(org.apache.thrift.protocol.TType.STRUCT,
 TaskIdentifier.class)));
-    metaDataMap = Collections.unmodifiableMap(tmpMap);
-    
org.apache.thrift.meta_data.FieldMetaData.addStructMetaDataMap(TaskStatusChangeEvent.class,
 metaDataMap);
-  }
-
-  public TaskStatusChangeEvent() {
-  }
-
-  public TaskStatusChangeEvent(
-    org.apache.airavata.model.status.TaskState state,
-    TaskIdentifier taskIdentity)
-  {
-    this();
-    this.state = state;
-    this.taskIdentity = taskIdentity;
-  }
-
-  /**
-   * Performs a deep copy on <i>other</i>.
-   */
-  public TaskStatusChangeEvent(TaskStatusChangeEvent other) {
-    if (other.isSetState()) {
-      this.state = other.state;
-    }
-    if (other.isSetTaskIdentity()) {
-      this.taskIdentity = new TaskIdentifier(other.taskIdentity);
-    }
-  }
-
-  public TaskStatusChangeEvent deepCopy() {
-    return new TaskStatusChangeEvent(this);
-  }
-
-  @Override
-  public void clear() {
-    this.state = null;
-    this.taskIdentity = null;
-  }
-
-  /**
-   * 
-   * @see org.apache.airavata.model.status.TaskState
-   */
-  public org.apache.airavata.model.status.TaskState getState() {
-    return this.state;
-  }
-
-  /**
-   * 
-   * @see org.apache.airavata.model.status.TaskState
-   */
-  public TaskStatusChangeEvent 
setState(org.apache.airavata.model.status.TaskState state) {
-    this.state = state;
-    return this;
-  }
-
-  public void unsetState() {
-    this.state = null;
-  }
-
-  /** Returns true if field state is set (has been assigned a value) and false 
otherwise */
-  public boolean isSetState() {
-    return this.state != null;
-  }
-
-  public void setStateIsSet(boolean value) {
-    if (!value) {
-      this.state = null;
-    }
-  }
-
-  public TaskIdentifier getTaskIdentity() {
-    return this.taskIdentity;
-  }
-
-  public TaskStatusChangeEvent setTaskIdentity(TaskIdentifier taskIdentity) {
-    this.taskIdentity = taskIdentity;
-    return this;
-  }
-
-  public void unsetTaskIdentity() {
-    this.taskIdentity = null;
-  }
-
-  /** Returns true if field taskIdentity is set (has been assigned a value) 
and false otherwise */
-  public boolean isSetTaskIdentity() {
-    return this.taskIdentity != null;
-  }
-
-  public void setTaskIdentityIsSet(boolean value) {
-    if (!value) {
-      this.taskIdentity = null;
-    }
-  }
-
-  public void setFieldValue(_Fields field, Object value) {
-    switch (field) {
-    case STATE:
-      if (value == null) {
-        unsetState();
-      } else {
-        setState((org.apache.airavata.model.status.TaskState)value);
-      }
-      break;
-
-    case TASK_IDENTITY:
-      if (value == null) {
-        unsetTaskIdentity();
-      } else {
-        setTaskIdentity((TaskIdentifier)value);
-      }
-      break;
-
-    }
-  }
-
-  public Object getFieldValue(_Fields field) {
-    switch (field) {
-    case STATE:
-      return getState();
-
-    case TASK_IDENTITY:
-      return getTaskIdentity();
-
-    }
-    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 STATE:
-      return isSetState();
-    case TASK_IDENTITY:
-      return isSetTaskIdentity();
-    }
-    throw new IllegalStateException();
-  }
-
-  @Override
-  public boolean equals(Object that) {
-    if (that == null)
-      return false;
-    if (that instanceof TaskStatusChangeEvent)
-      return this.equals((TaskStatusChangeEvent)that);
-    return false;
-  }
-
-  public boolean equals(TaskStatusChangeEvent that) {
-    if (that == null)
-      return false;
-
-    boolean this_present_state = true && this.isSetState();
-    boolean that_present_state = true && that.isSetState();
-    if (this_present_state || that_present_state) {
-      if (!(this_present_state && that_present_state))
-        return false;
-      if (!this.state.equals(that.state))
-        return false;
-    }
-
-    boolean this_present_taskIdentity = true && this.isSetTaskIdentity();
-    boolean that_present_taskIdentity = true && that.isSetTaskIdentity();
-    if (this_present_taskIdentity || that_present_taskIdentity) {
-      if (!(this_present_taskIdentity && that_present_taskIdentity))
-        return false;
-      if (!this.taskIdentity.equals(that.taskIdentity))
-        return false;
-    }
-
-    return true;
-  }
-
-  @Override
-  public int hashCode() {
-    List<Object> list = new ArrayList<Object>();
-
-    boolean present_state = true && (isSetState());
-    list.add(present_state);
-    if (present_state)
-      list.add(state.getValue());
-
-    boolean present_taskIdentity = true && (isSetTaskIdentity());
-    list.add(present_taskIdentity);
-    if (present_taskIdentity)
-      list.add(taskIdentity);
-
-    return list.hashCode();
-  }
-
-  @Override
-  public int compareTo(TaskStatusChangeEvent other) {
-    if (!getClass().equals(other.getClass())) {
-      return getClass().getName().compareTo(other.getClass().getName());
-    }
-
-    int lastComparison = 0;
-
-    lastComparison = 
Boolean.valueOf(isSetState()).compareTo(other.isSetState());
-    if (lastComparison != 0) {
-      return lastComparison;
-    }
-    if (isSetState()) {
-      lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.state, 
other.state);
-      if (lastComparison != 0) {
-        return lastComparison;
-      }
-    }
-    lastComparison = 
Boolean.valueOf(isSetTaskIdentity()).compareTo(other.isSetTaskIdentity());
-    if (lastComparison != 0) {
-      return lastComparison;
-    }
-    if (isSetTaskIdentity()) {
-      lastComparison = 
org.apache.thrift.TBaseHelper.compareTo(this.taskIdentity, other.taskIdentity);
-      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("TaskStatusChangeEvent(");
-    boolean first = true;
-
-    sb.append("state:");
-    if (this.state == null) {
-      sb.append("null");
-    } else {
-      sb.append(this.state);
-    }
-    first = false;
-    if (!first) sb.append(", ");
-    sb.append("taskIdentity:");
-    if (this.taskIdentity == null) {
-      sb.append("null");
-    } else {
-      sb.append(this.taskIdentity);
-    }
-    first = false;
-    sb.append(")");
-    return sb.toString();
-  }
-
-  public void validate() throws org.apache.thrift.TException {
-    // check for required fields
-    if (state == null) {
-      throw new org.apache.thrift.protocol.TProtocolException("Required field 
'state' was not present! Struct: " + toString());
-    }
-    if (taskIdentity == null) {
-      throw new org.apache.thrift.protocol.TProtocolException("Required field 
'taskIdentity' was not present! Struct: " + toString());
-    }
-    // check for sub-struct validity
-    if (taskIdentity != null) {
-      taskIdentity.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 TaskStatusChangeEventStandardSchemeFactory implements 
SchemeFactory {
-    public TaskStatusChangeEventStandardScheme getScheme() {
-      return new TaskStatusChangeEventStandardScheme();
-    }
-  }
-
-  private static class TaskStatusChangeEventStandardScheme extends 
StandardScheme<TaskStatusChangeEvent> {
-
-    public void read(org.apache.thrift.protocol.TProtocol iprot, 
TaskStatusChangeEvent 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: // STATE
-            if (schemeField.type == org.apache.thrift.protocol.TType.I32) {
-              struct.state = 
org.apache.airavata.model.status.TaskState.findByValue(iprot.readI32());
-              struct.setStateIsSet(true);
-            } else { 
-              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, 
schemeField.type);
-            }
-            break;
-          case 2: // TASK_IDENTITY
-            if (schemeField.type == org.apache.thrift.protocol.TType.STRUCT) {
-              struct.taskIdentity = new TaskIdentifier();
-              struct.taskIdentity.read(iprot);
-              struct.setTaskIdentityIsSet(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, 
TaskStatusChangeEvent struct) throws org.apache.thrift.TException {
-      struct.validate();
-
-      oprot.writeStructBegin(STRUCT_DESC);
-      if (struct.state != null) {
-        oprot.writeFieldBegin(STATE_FIELD_DESC);
-        oprot.writeI32(struct.state.getValue());
-        oprot.writeFieldEnd();
-      }
-      if (struct.taskIdentity != null) {
-        oprot.writeFieldBegin(TASK_IDENTITY_FIELD_DESC);
-        struct.taskIdentity.write(oprot);
-        oprot.writeFieldEnd();
-      }
-      oprot.writeFieldStop();
-      oprot.writeStructEnd();
-    }
-
-  }
-
-  private static class TaskStatusChangeEventTupleSchemeFactory implements 
SchemeFactory {
-    public TaskStatusChangeEventTupleScheme getScheme() {
-      return new TaskStatusChangeEventTupleScheme();
-    }
-  }
-
-  private static class TaskStatusChangeEventTupleScheme extends 
TupleScheme<TaskStatusChangeEvent> {
-
-    @Override
-    public void write(org.apache.thrift.protocol.TProtocol prot, 
TaskStatusChangeEvent struct) throws org.apache.thrift.TException {
-      TTupleProtocol oprot = (TTupleProtocol) prot;
-      oprot.writeI32(struct.state.getValue());
-      struct.taskIdentity.write(oprot);
-    }
-
-    @Override
-    public void read(org.apache.thrift.protocol.TProtocol prot, 
TaskStatusChangeEvent struct) throws org.apache.thrift.TException {
-      TTupleProtocol iprot = (TTupleProtocol) prot;
-      struct.state = 
org.apache.airavata.model.status.TaskState.findByValue(iprot.readI32());
-      struct.setStateIsSet(true);
-      struct.taskIdentity = new TaskIdentifier();
-      struct.taskIdentity.read(iprot);
-      struct.setTaskIdentityIsSet(true);
-    }
-  }
-
-}
-

http://git-wip-us.apache.org/repos/asf/airavata/blob/b490671e/airavata-api/airavata-api-stubs/src/main/java/org/apache/airavata/model/messaging/event/TaskStatusChangeRequestEvent.java
----------------------------------------------------------------------
diff --git 
a/airavata-api/airavata-api-stubs/src/main/java/org/apache/airavata/model/messaging/event/TaskStatusChangeRequestEvent.java
 
b/airavata-api/airavata-api-stubs/src/main/java/org/apache/airavata/model/messaging/event/TaskStatusChangeRequestEvent.java
deleted file mode 100644
index d880807..0000000
--- 
a/airavata-api/airavata-api-stubs/src/main/java/org/apache/airavata/model/messaging/event/TaskStatusChangeRequestEvent.java
+++ /dev/null
@@ -1,530 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/**
- * Autogenerated by Thrift Compiler (0.9.2)
- *
- * DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING
- *  @generated
- */
-package org.apache.airavata.model.messaging.event;
-
-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 javax.annotation.Generated;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-@SuppressWarnings({"cast", "rawtypes", "serial", "unchecked"})
-@Generated(value = "Autogenerated by Thrift Compiler (0.9.2)", date = 
"2015-12-2")
-public class TaskStatusChangeRequestEvent implements 
org.apache.thrift.TBase<TaskStatusChangeRequestEvent, 
TaskStatusChangeRequestEvent._Fields>, java.io.Serializable, Cloneable, 
Comparable<TaskStatusChangeRequestEvent> {
-  private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new 
org.apache.thrift.protocol.TStruct("TaskStatusChangeRequestEvent");
-
-  private static final org.apache.thrift.protocol.TField STATE_FIELD_DESC = 
new org.apache.thrift.protocol.TField("state", 
org.apache.thrift.protocol.TType.I32, (short)1);
-  private static final org.apache.thrift.protocol.TField 
TASK_IDENTITY_FIELD_DESC = new 
org.apache.thrift.protocol.TField("taskIdentity", 
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 
TaskStatusChangeRequestEventStandardSchemeFactory());
-    schemes.put(TupleScheme.class, new 
TaskStatusChangeRequestEventTupleSchemeFactory());
-  }
-
-  /**
-   * 
-   * @see org.apache.airavata.model.status.TaskState
-   */
-  public org.apache.airavata.model.status.TaskState state; // required
-  public TaskIdentifier taskIdentity; // required
-
-  /** The set of fields this struct contains, along with convenience methods 
for finding and manipulating them. */
-  public enum _Fields implements org.apache.thrift.TFieldIdEnum {
-    /**
-     * 
-     * @see org.apache.airavata.model.status.TaskState
-     */
-    STATE((short)1, "state"),
-    TASK_IDENTITY((short)2, "taskIdentity");
-
-    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: // STATE
-          return STATE;
-        case 2: // TASK_IDENTITY
-          return TASK_IDENTITY;
-        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.STATE, new 
org.apache.thrift.meta_data.FieldMetaData("state", 
org.apache.thrift.TFieldRequirementType.REQUIRED, 
-        new 
org.apache.thrift.meta_data.EnumMetaData(org.apache.thrift.protocol.TType.ENUM, 
org.apache.airavata.model.status.TaskState.class)));
-    tmpMap.put(_Fields.TASK_IDENTITY, new 
org.apache.thrift.meta_data.FieldMetaData("taskIdentity", 
org.apache.thrift.TFieldRequirementType.REQUIRED, 
-        new 
org.apache.thrift.meta_data.StructMetaData(org.apache.thrift.protocol.TType.STRUCT,
 TaskIdentifier.class)));
-    metaDataMap = Collections.unmodifiableMap(tmpMap);
-    
org.apache.thrift.meta_data.FieldMetaData.addStructMetaDataMap(TaskStatusChangeRequestEvent.class,
 metaDataMap);
-  }
-
-  public TaskStatusChangeRequestEvent() {
-  }
-
-  public TaskStatusChangeRequestEvent(
-    org.apache.airavata.model.status.TaskState state,
-    TaskIdentifier taskIdentity)
-  {
-    this();
-    this.state = state;
-    this.taskIdentity = taskIdentity;
-  }
-
-  /**
-   * Performs a deep copy on <i>other</i>.
-   */
-  public TaskStatusChangeRequestEvent(TaskStatusChangeRequestEvent other) {
-    if (other.isSetState()) {
-      this.state = other.state;
-    }
-    if (other.isSetTaskIdentity()) {
-      this.taskIdentity = new TaskIdentifier(other.taskIdentity);
-    }
-  }
-
-  public TaskStatusChangeRequestEvent deepCopy() {
-    return new TaskStatusChangeRequestEvent(this);
-  }
-
-  @Override
-  public void clear() {
-    this.state = null;
-    this.taskIdentity = null;
-  }
-
-  /**
-   * 
-   * @see org.apache.airavata.model.status.TaskState
-   */
-  public org.apache.airavata.model.status.TaskState getState() {
-    return this.state;
-  }
-
-  /**
-   * 
-   * @see org.apache.airavata.model.status.TaskState
-   */
-  public TaskStatusChangeRequestEvent 
setState(org.apache.airavata.model.status.TaskState state) {
-    this.state = state;
-    return this;
-  }
-
-  public void unsetState() {
-    this.state = null;
-  }
-
-  /** Returns true if field state is set (has been assigned a value) and false 
otherwise */
-  public boolean isSetState() {
-    return this.state != null;
-  }
-
-  public void setStateIsSet(boolean value) {
-    if (!value) {
-      this.state = null;
-    }
-  }
-
-  public TaskIdentifier getTaskIdentity() {
-    return this.taskIdentity;
-  }
-
-  public TaskStatusChangeRequestEvent setTaskIdentity(TaskIdentifier 
taskIdentity) {
-    this.taskIdentity = taskIdentity;
-    return this;
-  }
-
-  public void unsetTaskIdentity() {
-    this.taskIdentity = null;
-  }
-
-  /** Returns true if field taskIdentity is set (has been assigned a value) 
and false otherwise */
-  public boolean isSetTaskIdentity() {
-    return this.taskIdentity != null;
-  }
-
-  public void setTaskIdentityIsSet(boolean value) {
-    if (!value) {
-      this.taskIdentity = null;
-    }
-  }
-
-  public void setFieldValue(_Fields field, Object value) {
-    switch (field) {
-    case STATE:
-      if (value == null) {
-        unsetState();
-      } else {
-        setState((org.apache.airavata.model.status.TaskState)value);
-      }
-      break;
-
-    case TASK_IDENTITY:
-      if (value == null) {
-        unsetTaskIdentity();
-      } else {
-        setTaskIdentity((TaskIdentifier)value);
-      }
-      break;
-
-    }
-  }
-
-  public Object getFieldValue(_Fields field) {
-    switch (field) {
-    case STATE:
-      return getState();
-
-    case TASK_IDENTITY:
-      return getTaskIdentity();
-
-    }
-    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 STATE:
-      return isSetState();
-    case TASK_IDENTITY:
-      return isSetTaskIdentity();
-    }
-    throw new IllegalStateException();
-  }
-
-  @Override
-  public boolean equals(Object that) {
-    if (that == null)
-      return false;
-    if (that instanceof TaskStatusChangeRequestEvent)
-      return this.equals((TaskStatusChangeRequestEvent)that);
-    return false;
-  }
-
-  public boolean equals(TaskStatusChangeRequestEvent that) {
-    if (that == null)
-      return false;
-
-    boolean this_present_state = true && this.isSetState();
-    boolean that_present_state = true && that.isSetState();
-    if (this_present_state || that_present_state) {
-      if (!(this_present_state && that_present_state))
-        return false;
-      if (!this.state.equals(that.state))
-        return false;
-    }
-
-    boolean this_present_taskIdentity = true && this.isSetTaskIdentity();
-    boolean that_present_taskIdentity = true && that.isSetTaskIdentity();
-    if (this_present_taskIdentity || that_present_taskIdentity) {
-      if (!(this_present_taskIdentity && that_present_taskIdentity))
-        return false;
-      if (!this.taskIdentity.equals(that.taskIdentity))
-        return false;
-    }
-
-    return true;
-  }
-
-  @Override
-  public int hashCode() {
-    List<Object> list = new ArrayList<Object>();
-
-    boolean present_state = true && (isSetState());
-    list.add(present_state);
-    if (present_state)
-      list.add(state.getValue());
-
-    boolean present_taskIdentity = true && (isSetTaskIdentity());
-    list.add(present_taskIdentity);
-    if (present_taskIdentity)
-      list.add(taskIdentity);
-
-    return list.hashCode();
-  }
-
-  @Override
-  public int compareTo(TaskStatusChangeRequestEvent other) {
-    if (!getClass().equals(other.getClass())) {
-      return getClass().getName().compareTo(other.getClass().getName());
-    }
-
-    int lastComparison = 0;
-
-    lastComparison = 
Boolean.valueOf(isSetState()).compareTo(other.isSetState());
-    if (lastComparison != 0) {
-      return lastComparison;
-    }
-    if (isSetState()) {
-      lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.state, 
other.state);
-      if (lastComparison != 0) {
-        return lastComparison;
-      }
-    }
-    lastComparison = 
Boolean.valueOf(isSetTaskIdentity()).compareTo(other.isSetTaskIdentity());
-    if (lastComparison != 0) {
-      return lastComparison;
-    }
-    if (isSetTaskIdentity()) {
-      lastComparison = 
org.apache.thrift.TBaseHelper.compareTo(this.taskIdentity, other.taskIdentity);
-      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("TaskStatusChangeRequestEvent(");
-    boolean first = true;
-
-    sb.append("state:");
-    if (this.state == null) {
-      sb.append("null");
-    } else {
-      sb.append(this.state);
-    }
-    first = false;
-    if (!first) sb.append(", ");
-    sb.append("taskIdentity:");
-    if (this.taskIdentity == null) {
-      sb.append("null");
-    } else {
-      sb.append(this.taskIdentity);
-    }
-    first = false;
-    sb.append(")");
-    return sb.toString();
-  }
-
-  public void validate() throws org.apache.thrift.TException {
-    // check for required fields
-    if (state == null) {
-      throw new org.apache.thrift.protocol.TProtocolException("Required field 
'state' was not present! Struct: " + toString());
-    }
-    if (taskIdentity == null) {
-      throw new org.apache.thrift.protocol.TProtocolException("Required field 
'taskIdentity' was not present! Struct: " + toString());
-    }
-    // check for sub-struct validity
-    if (taskIdentity != null) {
-      taskIdentity.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 TaskStatusChangeRequestEventStandardSchemeFactory 
implements SchemeFactory {
-    public TaskStatusChangeRequestEventStandardScheme getScheme() {
-      return new TaskStatusChangeRequestEventStandardScheme();
-    }
-  }
-
-  private static class TaskStatusChangeRequestEventStandardScheme extends 
StandardScheme<TaskStatusChangeRequestEvent> {
-
-    public void read(org.apache.thrift.protocol.TProtocol iprot, 
TaskStatusChangeRequestEvent 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: // STATE
-            if (schemeField.type == org.apache.thrift.protocol.TType.I32) {
-              struct.state = 
org.apache.airavata.model.status.TaskState.findByValue(iprot.readI32());
-              struct.setStateIsSet(true);
-            } else { 
-              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, 
schemeField.type);
-            }
-            break;
-          case 2: // TASK_IDENTITY
-            if (schemeField.type == org.apache.thrift.protocol.TType.STRUCT) {
-              struct.taskIdentity = new TaskIdentifier();
-              struct.taskIdentity.read(iprot);
-              struct.setTaskIdentityIsSet(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, 
TaskStatusChangeRequestEvent struct) throws org.apache.thrift.TException {
-      struct.validate();
-
-      oprot.writeStructBegin(STRUCT_DESC);
-      if (struct.state != null) {
-        oprot.writeFieldBegin(STATE_FIELD_DESC);
-        oprot.writeI32(struct.state.getValue());
-        oprot.writeFieldEnd();
-      }
-      if (struct.taskIdentity != null) {
-        oprot.writeFieldBegin(TASK_IDENTITY_FIELD_DESC);
-        struct.taskIdentity.write(oprot);
-        oprot.writeFieldEnd();
-      }
-      oprot.writeFieldStop();
-      oprot.writeStructEnd();
-    }
-
-  }
-
-  private static class TaskStatusChangeRequestEventTupleSchemeFactory 
implements SchemeFactory {
-    public TaskStatusChangeRequestEventTupleScheme getScheme() {
-      return new TaskStatusChangeRequestEventTupleScheme();
-    }
-  }
-
-  private static class TaskStatusChangeRequestEventTupleScheme extends 
TupleScheme<TaskStatusChangeRequestEvent> {
-
-    @Override
-    public void write(org.apache.thrift.protocol.TProtocol prot, 
TaskStatusChangeRequestEvent struct) throws org.apache.thrift.TException {
-      TTupleProtocol oprot = (TTupleProtocol) prot;
-      oprot.writeI32(struct.state.getValue());
-      struct.taskIdentity.write(oprot);
-    }
-
-    @Override
-    public void read(org.apache.thrift.protocol.TProtocol prot, 
TaskStatusChangeRequestEvent struct) throws org.apache.thrift.TException {
-      TTupleProtocol iprot = (TTupleProtocol) prot;
-      struct.state = 
org.apache.airavata.model.status.TaskState.findByValue(iprot.readI32());
-      struct.setStateIsSet(true);
-      struct.taskIdentity = new TaskIdentifier();
-      struct.taskIdentity.read(iprot);
-      struct.setTaskIdentityIsSet(true);
-    }
-  }
-
-}
-

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