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From chath...@apache.org
Subject [20/23] removing recursively calling publish
Date Mon, 06 Oct 2014 19:55:08 GMT
http://git-wip-us.apache.org/repos/asf/airavata/blob/255dd9e3/airavata-api/airavata-data-models/src/main/java/org/apache/airavata/model/messaging/event/TaskIdentifier.java
----------------------------------------------------------------------
diff --git a/airavata-api/airavata-data-models/src/main/java/org/apache/airavata/model/messaging/event/TaskIdentifier.java b/airavata-api/airavata-data-models/src/main/java/org/apache/airavata/model/messaging/event/TaskIdentifier.java
new file mode 100644
index 0000000..f33173a
--- /dev/null
+++ b/airavata-api/airavata-data-models/src/main/java/org/apache/airavata/model/messaging/event/TaskIdentifier.java
@@ -0,0 +1,588 @@
+/**
+ * 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 (0.9.1)
+ *
+ * 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 org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+@SuppressWarnings("all") public class TaskIdentifier implements org.apache.thrift.TBase<TaskIdentifier, TaskIdentifier._Fields>, java.io.Serializable, Cloneable, Comparable<TaskIdentifier> {
+  private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("TaskIdentifier");
+
+  private static final org.apache.thrift.protocol.TField TASK_ID_FIELD_DESC = new org.apache.thrift.protocol.TField("taskId", org.apache.thrift.protocol.TType.STRING, (short)1);
+  private static final org.apache.thrift.protocol.TField WORKFLOW_NODE_ID_FIELD_DESC = new org.apache.thrift.protocol.TField("workflowNodeId", org.apache.thrift.protocol.TType.STRING, (short)2);
+  private static final org.apache.thrift.protocol.TField EXPERIMENT_ID_FIELD_DESC = new org.apache.thrift.protocol.TField("experimentId", org.apache.thrift.protocol.TType.STRING, (short)3);
+
+  private static final Map<Class<? extends IScheme>, SchemeFactory> schemes = new HashMap<Class<? extends IScheme>, SchemeFactory>();
+  static {
+    schemes.put(StandardScheme.class, new TaskIdentifierStandardSchemeFactory());
+    schemes.put(TupleScheme.class, new TaskIdentifierTupleSchemeFactory());
+  }
+
+  private String taskId; // required
+  private String workflowNodeId; // required
+  private String experimentId; // required
+
+  /** The set of fields this struct contains, along with convenience methods for finding and manipulating them. */
+  @SuppressWarnings("all") public enum _Fields implements org.apache.thrift.TFieldIdEnum {
+    TASK_ID((short)1, "taskId"),
+    WORKFLOW_NODE_ID((short)2, "workflowNodeId"),
+    EXPERIMENT_ID((short)3, "experimentId");
+
+    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: // TASK_ID
+          return TASK_ID;
+        case 2: // WORKFLOW_NODE_ID
+          return WORKFLOW_NODE_ID;
+        case 3: // EXPERIMENT_ID
+          return EXPERIMENT_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.TASK_ID, new org.apache.thrift.meta_data.FieldMetaData("taskId", org.apache.thrift.TFieldRequirementType.REQUIRED, 
+        new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.STRING)));
+    tmpMap.put(_Fields.WORKFLOW_NODE_ID, new org.apache.thrift.meta_data.FieldMetaData("workflowNodeId", org.apache.thrift.TFieldRequirementType.REQUIRED, 
+        new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.STRING)));
+    tmpMap.put(_Fields.EXPERIMENT_ID, new org.apache.thrift.meta_data.FieldMetaData("experimentId", org.apache.thrift.TFieldRequirementType.REQUIRED, 
+        new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.STRING)));
+    metaDataMap = Collections.unmodifiableMap(tmpMap);
+    org.apache.thrift.meta_data.FieldMetaData.addStructMetaDataMap(TaskIdentifier.class, metaDataMap);
+  }
+
+  public TaskIdentifier() {
+  }
+
+  public TaskIdentifier(
+    String taskId,
+    String workflowNodeId,
+    String experimentId)
+  {
+    this();
+    this.taskId = taskId;
+    this.workflowNodeId = workflowNodeId;
+    this.experimentId = experimentId;
+  }
+
+  /**
+   * Performs a deep copy on <i>other</i>.
+   */
+  public TaskIdentifier(TaskIdentifier other) {
+    if (other.isSetTaskId()) {
+      this.taskId = other.taskId;
+    }
+    if (other.isSetWorkflowNodeId()) {
+      this.workflowNodeId = other.workflowNodeId;
+    }
+    if (other.isSetExperimentId()) {
+      this.experimentId = other.experimentId;
+    }
+  }
+
+  public TaskIdentifier deepCopy() {
+    return new TaskIdentifier(this);
+  }
+
+  @Override
+  public void clear() {
+    this.taskId = null;
+    this.workflowNodeId = null;
+    this.experimentId = null;
+  }
+
+  public String getTaskId() {
+    return this.taskId;
+  }
+
+  public void setTaskId(String taskId) {
+    this.taskId = taskId;
+  }
+
+  public void unsetTaskId() {
+    this.taskId = null;
+  }
+
+  /** Returns true if field taskId is set (has been assigned a value) and false otherwise */
+  public boolean isSetTaskId() {
+    return this.taskId != null;
+  }
+
+  public void setTaskIdIsSet(boolean value) {
+    if (!value) {
+      this.taskId = null;
+    }
+  }
+
+  public String getWorkflowNodeId() {
+    return this.workflowNodeId;
+  }
+
+  public void setWorkflowNodeId(String workflowNodeId) {
+    this.workflowNodeId = workflowNodeId;
+  }
+
+  public void unsetWorkflowNodeId() {
+    this.workflowNodeId = null;
+  }
+
+  /** Returns true if field workflowNodeId is set (has been assigned a value) and false otherwise */
+  public boolean isSetWorkflowNodeId() {
+    return this.workflowNodeId != null;
+  }
+
+  public void setWorkflowNodeIdIsSet(boolean value) {
+    if (!value) {
+      this.workflowNodeId = null;
+    }
+  }
+
+  public String getExperimentId() {
+    return this.experimentId;
+  }
+
+  public void setExperimentId(String experimentId) {
+    this.experimentId = experimentId;
+  }
+
+  public void unsetExperimentId() {
+    this.experimentId = null;
+  }
+
+  /** Returns true if field experimentId is set (has been assigned a value) and false otherwise */
+  public boolean isSetExperimentId() {
+    return this.experimentId != null;
+  }
+
+  public void setExperimentIdIsSet(boolean value) {
+    if (!value) {
+      this.experimentId = null;
+    }
+  }
+
+  public void setFieldValue(_Fields field, Object value) {
+    switch (field) {
+    case TASK_ID:
+      if (value == null) {
+        unsetTaskId();
+      } else {
+        setTaskId((String)value);
+      }
+      break;
+
+    case WORKFLOW_NODE_ID:
+      if (value == null) {
+        unsetWorkflowNodeId();
+      } else {
+        setWorkflowNodeId((String)value);
+      }
+      break;
+
+    case EXPERIMENT_ID:
+      if (value == null) {
+        unsetExperimentId();
+      } else {
+        setExperimentId((String)value);
+      }
+      break;
+
+    }
+  }
+
+  public Object getFieldValue(_Fields field) {
+    switch (field) {
+    case TASK_ID:
+      return getTaskId();
+
+    case WORKFLOW_NODE_ID:
+      return getWorkflowNodeId();
+
+    case EXPERIMENT_ID:
+      return getExperimentId();
+
+    }
+    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 TASK_ID:
+      return isSetTaskId();
+    case WORKFLOW_NODE_ID:
+      return isSetWorkflowNodeId();
+    case EXPERIMENT_ID:
+      return isSetExperimentId();
+    }
+    throw new IllegalStateException();
+  }
+
+  @Override
+  public boolean equals(Object that) {
+    if (that == null)
+      return false;
+    if (that instanceof TaskIdentifier)
+      return this.equals((TaskIdentifier)that);
+    return false;
+  }
+
+  public boolean equals(TaskIdentifier that) {
+    if (that == null)
+      return false;
+
+    boolean this_present_taskId = true && this.isSetTaskId();
+    boolean that_present_taskId = true && that.isSetTaskId();
+    if (this_present_taskId || that_present_taskId) {
+      if (!(this_present_taskId && that_present_taskId))
+        return false;
+      if (!this.taskId.equals(that.taskId))
+        return false;
+    }
+
+    boolean this_present_workflowNodeId = true && this.isSetWorkflowNodeId();
+    boolean that_present_workflowNodeId = true && that.isSetWorkflowNodeId();
+    if (this_present_workflowNodeId || that_present_workflowNodeId) {
+      if (!(this_present_workflowNodeId && that_present_workflowNodeId))
+        return false;
+      if (!this.workflowNodeId.equals(that.workflowNodeId))
+        return false;
+    }
+
+    boolean this_present_experimentId = true && this.isSetExperimentId();
+    boolean that_present_experimentId = true && that.isSetExperimentId();
+    if (this_present_experimentId || that_present_experimentId) {
+      if (!(this_present_experimentId && that_present_experimentId))
+        return false;
+      if (!this.experimentId.equals(that.experimentId))
+        return false;
+    }
+
+    return true;
+  }
+
+  @Override
+  public int hashCode() {
+    return 0;
+  }
+
+  @Override
+  public int compareTo(TaskIdentifier other) {
+    if (!getClass().equals(other.getClass())) {
+      return getClass().getName().compareTo(other.getClass().getName());
+    }
+
+    int lastComparison = 0;
+
+    lastComparison = Boolean.valueOf(isSetTaskId()).compareTo(other.isSetTaskId());
+    if (lastComparison != 0) {
+      return lastComparison;
+    }
+    if (isSetTaskId()) {
+      lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.taskId, other.taskId);
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+    }
+    lastComparison = Boolean.valueOf(isSetWorkflowNodeId()).compareTo(other.isSetWorkflowNodeId());
+    if (lastComparison != 0) {
+      return lastComparison;
+    }
+    if (isSetWorkflowNodeId()) {
+      lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.workflowNodeId, other.workflowNodeId);
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+    }
+    lastComparison = Boolean.valueOf(isSetExperimentId()).compareTo(other.isSetExperimentId());
+    if (lastComparison != 0) {
+      return lastComparison;
+    }
+    if (isSetExperimentId()) {
+      lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.experimentId, other.experimentId);
+      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("TaskIdentifier(");
+    boolean first = true;
+
+    sb.append("taskId:");
+    if (this.taskId == null) {
+      sb.append("null");
+    } else {
+      sb.append(this.taskId);
+    }
+    first = false;
+    if (!first) sb.append(", ");
+    sb.append("workflowNodeId:");
+    if (this.workflowNodeId == null) {
+      sb.append("null");
+    } else {
+      sb.append(this.workflowNodeId);
+    }
+    first = false;
+    if (!first) sb.append(", ");
+    sb.append("experimentId:");
+    if (this.experimentId == null) {
+      sb.append("null");
+    } else {
+      sb.append(this.experimentId);
+    }
+    first = false;
+    sb.append(")");
+    return sb.toString();
+  }
+
+  public void validate() throws org.apache.thrift.TException {
+    // check for required fields
+    if (!isSetTaskId()) {
+      throw new org.apache.thrift.protocol.TProtocolException("Required field 'taskId' is unset! Struct:" + toString());
+    }
+
+    if (!isSetWorkflowNodeId()) {
+      throw new org.apache.thrift.protocol.TProtocolException("Required field 'workflowNodeId' is unset! Struct:" + toString());
+    }
+
+    if (!isSetExperimentId()) {
+      throw new org.apache.thrift.protocol.TProtocolException("Required field 'experimentId' is unset! Struct:" + toString());
+    }
+
+    // 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 TaskIdentifierStandardSchemeFactory implements SchemeFactory {
+    public TaskIdentifierStandardScheme getScheme() {
+      return new TaskIdentifierStandardScheme();
+    }
+  }
+
+  private static class TaskIdentifierStandardScheme extends StandardScheme<TaskIdentifier> {
+
+    public void read(org.apache.thrift.protocol.TProtocol iprot, TaskIdentifier 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: // TASK_ID
+            if (schemeField.type == org.apache.thrift.protocol.TType.STRING) {
+              struct.taskId = iprot.readString();
+              struct.setTaskIdIsSet(true);
+            } else { 
+              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+            }
+            break;
+          case 2: // WORKFLOW_NODE_ID
+            if (schemeField.type == org.apache.thrift.protocol.TType.STRING) {
+              struct.workflowNodeId = iprot.readString();
+              struct.setWorkflowNodeIdIsSet(true);
+            } else { 
+              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+            }
+            break;
+          case 3: // EXPERIMENT_ID
+            if (schemeField.type == org.apache.thrift.protocol.TType.STRING) {
+              struct.experimentId = iprot.readString();
+              struct.setExperimentIdIsSet(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();
+      struct.validate();
+    }
+
+    public void write(org.apache.thrift.protocol.TProtocol oprot, TaskIdentifier struct) throws org.apache.thrift.TException {
+      struct.validate();
+
+      oprot.writeStructBegin(STRUCT_DESC);
+      if (struct.taskId != null) {
+        oprot.writeFieldBegin(TASK_ID_FIELD_DESC);
+        oprot.writeString(struct.taskId);
+        oprot.writeFieldEnd();
+      }
+      if (struct.workflowNodeId != null) {
+        oprot.writeFieldBegin(WORKFLOW_NODE_ID_FIELD_DESC);
+        oprot.writeString(struct.workflowNodeId);
+        oprot.writeFieldEnd();
+      }
+      if (struct.experimentId != null) {
+        oprot.writeFieldBegin(EXPERIMENT_ID_FIELD_DESC);
+        oprot.writeString(struct.experimentId);
+        oprot.writeFieldEnd();
+      }
+      oprot.writeFieldStop();
+      oprot.writeStructEnd();
+    }
+
+  }
+
+  private static class TaskIdentifierTupleSchemeFactory implements SchemeFactory {
+    public TaskIdentifierTupleScheme getScheme() {
+      return new TaskIdentifierTupleScheme();
+    }
+  }
+
+  private static class TaskIdentifierTupleScheme extends TupleScheme<TaskIdentifier> {
+
+    @Override
+    public void write(org.apache.thrift.protocol.TProtocol prot, TaskIdentifier struct) throws org.apache.thrift.TException {
+      TTupleProtocol oprot = (TTupleProtocol) prot;
+      oprot.writeString(struct.taskId);
+      oprot.writeString(struct.workflowNodeId);
+      oprot.writeString(struct.experimentId);
+    }
+
+    @Override
+    public void read(org.apache.thrift.protocol.TProtocol prot, TaskIdentifier struct) throws org.apache.thrift.TException {
+      TTupleProtocol iprot = (TTupleProtocol) prot;
+      struct.taskId = iprot.readString();
+      struct.setTaskIdIsSet(true);
+      struct.workflowNodeId = iprot.readString();
+      struct.setWorkflowNodeIdIsSet(true);
+      struct.experimentId = iprot.readString();
+      struct.setExperimentIdIsSet(true);
+    }
+  }
+
+}
+

http://git-wip-us.apache.org/repos/asf/airavata/blob/255dd9e3/airavata-api/airavata-data-models/src/main/java/org/apache/airavata/model/messaging/event/TaskIdentity.java
----------------------------------------------------------------------
diff --git a/airavata-api/airavata-data-models/src/main/java/org/apache/airavata/model/messaging/event/TaskIdentity.java b/airavata-api/airavata-data-models/src/main/java/org/apache/airavata/model/messaging/event/TaskIdentity.java
deleted file mode 100644
index 91cb600..0000000
--- a/airavata-api/airavata-data-models/src/main/java/org/apache/airavata/model/messaging/event/TaskIdentity.java
+++ /dev/null
@@ -1,588 +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 (0.9.1)
- *
- * 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 org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-@SuppressWarnings("all") public class TaskIdentity implements org.apache.thrift.TBase<TaskIdentity, TaskIdentity._Fields>, java.io.Serializable, Cloneable, Comparable<TaskIdentity> {
-  private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("TaskIdentity");
-
-  private static final org.apache.thrift.protocol.TField TASK_ID_FIELD_DESC = new org.apache.thrift.protocol.TField("taskId", org.apache.thrift.protocol.TType.STRING, (short)1);
-  private static final org.apache.thrift.protocol.TField WORKFLOW_NODE_ID_FIELD_DESC = new org.apache.thrift.protocol.TField("workflowNodeId", org.apache.thrift.protocol.TType.STRING, (short)2);
-  private static final org.apache.thrift.protocol.TField EXPERIMENT_ID_FIELD_DESC = new org.apache.thrift.protocol.TField("experimentId", org.apache.thrift.protocol.TType.STRING, (short)3);
-
-  private static final Map<Class<? extends IScheme>, SchemeFactory> schemes = new HashMap<Class<? extends IScheme>, SchemeFactory>();
-  static {
-    schemes.put(StandardScheme.class, new TaskIdentityStandardSchemeFactory());
-    schemes.put(TupleScheme.class, new TaskIdentityTupleSchemeFactory());
-  }
-
-  private String taskId; // required
-  private String workflowNodeId; // required
-  private String experimentId; // required
-
-  /** The set of fields this struct contains, along with convenience methods for finding and manipulating them. */
-  @SuppressWarnings("all") public enum _Fields implements org.apache.thrift.TFieldIdEnum {
-    TASK_ID((short)1, "taskId"),
-    WORKFLOW_NODE_ID((short)2, "workflowNodeId"),
-    EXPERIMENT_ID((short)3, "experimentId");
-
-    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: // TASK_ID
-          return TASK_ID;
-        case 2: // WORKFLOW_NODE_ID
-          return WORKFLOW_NODE_ID;
-        case 3: // EXPERIMENT_ID
-          return EXPERIMENT_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.TASK_ID, new org.apache.thrift.meta_data.FieldMetaData("taskId", org.apache.thrift.TFieldRequirementType.REQUIRED, 
-        new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.STRING)));
-    tmpMap.put(_Fields.WORKFLOW_NODE_ID, new org.apache.thrift.meta_data.FieldMetaData("workflowNodeId", org.apache.thrift.TFieldRequirementType.REQUIRED, 
-        new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.STRING)));
-    tmpMap.put(_Fields.EXPERIMENT_ID, new org.apache.thrift.meta_data.FieldMetaData("experimentId", org.apache.thrift.TFieldRequirementType.REQUIRED, 
-        new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.STRING)));
-    metaDataMap = Collections.unmodifiableMap(tmpMap);
-    org.apache.thrift.meta_data.FieldMetaData.addStructMetaDataMap(TaskIdentity.class, metaDataMap);
-  }
-
-  public TaskIdentity() {
-  }
-
-  public TaskIdentity(
-    String taskId,
-    String workflowNodeId,
-    String experimentId)
-  {
-    this();
-    this.taskId = taskId;
-    this.workflowNodeId = workflowNodeId;
-    this.experimentId = experimentId;
-  }
-
-  /**
-   * Performs a deep copy on <i>other</i>.
-   */
-  public TaskIdentity(TaskIdentity other) {
-    if (other.isSetTaskId()) {
-      this.taskId = other.taskId;
-    }
-    if (other.isSetWorkflowNodeId()) {
-      this.workflowNodeId = other.workflowNodeId;
-    }
-    if (other.isSetExperimentId()) {
-      this.experimentId = other.experimentId;
-    }
-  }
-
-  public TaskIdentity deepCopy() {
-    return new TaskIdentity(this);
-  }
-
-  @Override
-  public void clear() {
-    this.taskId = null;
-    this.workflowNodeId = null;
-    this.experimentId = null;
-  }
-
-  public String getTaskId() {
-    return this.taskId;
-  }
-
-  public void setTaskId(String taskId) {
-    this.taskId = taskId;
-  }
-
-  public void unsetTaskId() {
-    this.taskId = null;
-  }
-
-  /** Returns true if field taskId is set (has been assigned a value) and false otherwise */
-  public boolean isSetTaskId() {
-    return this.taskId != null;
-  }
-
-  public void setTaskIdIsSet(boolean value) {
-    if (!value) {
-      this.taskId = null;
-    }
-  }
-
-  public String getWorkflowNodeId() {
-    return this.workflowNodeId;
-  }
-
-  public void setWorkflowNodeId(String workflowNodeId) {
-    this.workflowNodeId = workflowNodeId;
-  }
-
-  public void unsetWorkflowNodeId() {
-    this.workflowNodeId = null;
-  }
-
-  /** Returns true if field workflowNodeId is set (has been assigned a value) and false otherwise */
-  public boolean isSetWorkflowNodeId() {
-    return this.workflowNodeId != null;
-  }
-
-  public void setWorkflowNodeIdIsSet(boolean value) {
-    if (!value) {
-      this.workflowNodeId = null;
-    }
-  }
-
-  public String getExperimentId() {
-    return this.experimentId;
-  }
-
-  public void setExperimentId(String experimentId) {
-    this.experimentId = experimentId;
-  }
-
-  public void unsetExperimentId() {
-    this.experimentId = null;
-  }
-
-  /** Returns true if field experimentId is set (has been assigned a value) and false otherwise */
-  public boolean isSetExperimentId() {
-    return this.experimentId != null;
-  }
-
-  public void setExperimentIdIsSet(boolean value) {
-    if (!value) {
-      this.experimentId = null;
-    }
-  }
-
-  public void setFieldValue(_Fields field, Object value) {
-    switch (field) {
-    case TASK_ID:
-      if (value == null) {
-        unsetTaskId();
-      } else {
-        setTaskId((String)value);
-      }
-      break;
-
-    case WORKFLOW_NODE_ID:
-      if (value == null) {
-        unsetWorkflowNodeId();
-      } else {
-        setWorkflowNodeId((String)value);
-      }
-      break;
-
-    case EXPERIMENT_ID:
-      if (value == null) {
-        unsetExperimentId();
-      } else {
-        setExperimentId((String)value);
-      }
-      break;
-
-    }
-  }
-
-  public Object getFieldValue(_Fields field) {
-    switch (field) {
-    case TASK_ID:
-      return getTaskId();
-
-    case WORKFLOW_NODE_ID:
-      return getWorkflowNodeId();
-
-    case EXPERIMENT_ID:
-      return getExperimentId();
-
-    }
-    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 TASK_ID:
-      return isSetTaskId();
-    case WORKFLOW_NODE_ID:
-      return isSetWorkflowNodeId();
-    case EXPERIMENT_ID:
-      return isSetExperimentId();
-    }
-    throw new IllegalStateException();
-  }
-
-  @Override
-  public boolean equals(Object that) {
-    if (that == null)
-      return false;
-    if (that instanceof TaskIdentity)
-      return this.equals((TaskIdentity)that);
-    return false;
-  }
-
-  public boolean equals(TaskIdentity that) {
-    if (that == null)
-      return false;
-
-    boolean this_present_taskId = true && this.isSetTaskId();
-    boolean that_present_taskId = true && that.isSetTaskId();
-    if (this_present_taskId || that_present_taskId) {
-      if (!(this_present_taskId && that_present_taskId))
-        return false;
-      if (!this.taskId.equals(that.taskId))
-        return false;
-    }
-
-    boolean this_present_workflowNodeId = true && this.isSetWorkflowNodeId();
-    boolean that_present_workflowNodeId = true && that.isSetWorkflowNodeId();
-    if (this_present_workflowNodeId || that_present_workflowNodeId) {
-      if (!(this_present_workflowNodeId && that_present_workflowNodeId))
-        return false;
-      if (!this.workflowNodeId.equals(that.workflowNodeId))
-        return false;
-    }
-
-    boolean this_present_experimentId = true && this.isSetExperimentId();
-    boolean that_present_experimentId = true && that.isSetExperimentId();
-    if (this_present_experimentId || that_present_experimentId) {
-      if (!(this_present_experimentId && that_present_experimentId))
-        return false;
-      if (!this.experimentId.equals(that.experimentId))
-        return false;
-    }
-
-    return true;
-  }
-
-  @Override
-  public int hashCode() {
-    return 0;
-  }
-
-  @Override
-  public int compareTo(TaskIdentity other) {
-    if (!getClass().equals(other.getClass())) {
-      return getClass().getName().compareTo(other.getClass().getName());
-    }
-
-    int lastComparison = 0;
-
-    lastComparison = Boolean.valueOf(isSetTaskId()).compareTo(other.isSetTaskId());
-    if (lastComparison != 0) {
-      return lastComparison;
-    }
-    if (isSetTaskId()) {
-      lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.taskId, other.taskId);
-      if (lastComparison != 0) {
-        return lastComparison;
-      }
-    }
-    lastComparison = Boolean.valueOf(isSetWorkflowNodeId()).compareTo(other.isSetWorkflowNodeId());
-    if (lastComparison != 0) {
-      return lastComparison;
-    }
-    if (isSetWorkflowNodeId()) {
-      lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.workflowNodeId, other.workflowNodeId);
-      if (lastComparison != 0) {
-        return lastComparison;
-      }
-    }
-    lastComparison = Boolean.valueOf(isSetExperimentId()).compareTo(other.isSetExperimentId());
-    if (lastComparison != 0) {
-      return lastComparison;
-    }
-    if (isSetExperimentId()) {
-      lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.experimentId, other.experimentId);
-      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("TaskIdentity(");
-    boolean first = true;
-
-    sb.append("taskId:");
-    if (this.taskId == null) {
-      sb.append("null");
-    } else {
-      sb.append(this.taskId);
-    }
-    first = false;
-    if (!first) sb.append(", ");
-    sb.append("workflowNodeId:");
-    if (this.workflowNodeId == null) {
-      sb.append("null");
-    } else {
-      sb.append(this.workflowNodeId);
-    }
-    first = false;
-    if (!first) sb.append(", ");
-    sb.append("experimentId:");
-    if (this.experimentId == null) {
-      sb.append("null");
-    } else {
-      sb.append(this.experimentId);
-    }
-    first = false;
-    sb.append(")");
-    return sb.toString();
-  }
-
-  public void validate() throws org.apache.thrift.TException {
-    // check for required fields
-    if (!isSetTaskId()) {
-      throw new org.apache.thrift.protocol.TProtocolException("Required field 'taskId' is unset! Struct:" + toString());
-    }
-
-    if (!isSetWorkflowNodeId()) {
-      throw new org.apache.thrift.protocol.TProtocolException("Required field 'workflowNodeId' is unset! Struct:" + toString());
-    }
-
-    if (!isSetExperimentId()) {
-      throw new org.apache.thrift.protocol.TProtocolException("Required field 'experimentId' is unset! Struct:" + toString());
-    }
-
-    // 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 TaskIdentityStandardSchemeFactory implements SchemeFactory {
-    public TaskIdentityStandardScheme getScheme() {
-      return new TaskIdentityStandardScheme();
-    }
-  }
-
-  private static class TaskIdentityStandardScheme extends StandardScheme<TaskIdentity> {
-
-    public void read(org.apache.thrift.protocol.TProtocol iprot, TaskIdentity 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: // TASK_ID
-            if (schemeField.type == org.apache.thrift.protocol.TType.STRING) {
-              struct.taskId = iprot.readString();
-              struct.setTaskIdIsSet(true);
-            } else { 
-              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
-            }
-            break;
-          case 2: // WORKFLOW_NODE_ID
-            if (schemeField.type == org.apache.thrift.protocol.TType.STRING) {
-              struct.workflowNodeId = iprot.readString();
-              struct.setWorkflowNodeIdIsSet(true);
-            } else { 
-              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
-            }
-            break;
-          case 3: // EXPERIMENT_ID
-            if (schemeField.type == org.apache.thrift.protocol.TType.STRING) {
-              struct.experimentId = iprot.readString();
-              struct.setExperimentIdIsSet(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();
-      struct.validate();
-    }
-
-    public void write(org.apache.thrift.protocol.TProtocol oprot, TaskIdentity struct) throws org.apache.thrift.TException {
-      struct.validate();
-
-      oprot.writeStructBegin(STRUCT_DESC);
-      if (struct.taskId != null) {
-        oprot.writeFieldBegin(TASK_ID_FIELD_DESC);
-        oprot.writeString(struct.taskId);
-        oprot.writeFieldEnd();
-      }
-      if (struct.workflowNodeId != null) {
-        oprot.writeFieldBegin(WORKFLOW_NODE_ID_FIELD_DESC);
-        oprot.writeString(struct.workflowNodeId);
-        oprot.writeFieldEnd();
-      }
-      if (struct.experimentId != null) {
-        oprot.writeFieldBegin(EXPERIMENT_ID_FIELD_DESC);
-        oprot.writeString(struct.experimentId);
-        oprot.writeFieldEnd();
-      }
-      oprot.writeFieldStop();
-      oprot.writeStructEnd();
-    }
-
-  }
-
-  private static class TaskIdentityTupleSchemeFactory implements SchemeFactory {
-    public TaskIdentityTupleScheme getScheme() {
-      return new TaskIdentityTupleScheme();
-    }
-  }
-
-  private static class TaskIdentityTupleScheme extends TupleScheme<TaskIdentity> {
-
-    @Override
-    public void write(org.apache.thrift.protocol.TProtocol prot, TaskIdentity struct) throws org.apache.thrift.TException {
-      TTupleProtocol oprot = (TTupleProtocol) prot;
-      oprot.writeString(struct.taskId);
-      oprot.writeString(struct.workflowNodeId);
-      oprot.writeString(struct.experimentId);
-    }
-
-    @Override
-    public void read(org.apache.thrift.protocol.TProtocol prot, TaskIdentity struct) throws org.apache.thrift.TException {
-      TTupleProtocol iprot = (TTupleProtocol) prot;
-      struct.taskId = iprot.readString();
-      struct.setTaskIdIsSet(true);
-      struct.workflowNodeId = iprot.readString();
-      struct.setWorkflowNodeIdIsSet(true);
-      struct.experimentId = iprot.readString();
-      struct.setExperimentIdIsSet(true);
-    }
-  }
-
-}
-

http://git-wip-us.apache.org/repos/asf/airavata/blob/255dd9e3/airavata-api/airavata-data-models/src/main/java/org/apache/airavata/model/messaging/event/TaskOutputChangeEvent.java
----------------------------------------------------------------------
diff --git a/airavata-api/airavata-data-models/src/main/java/org/apache/airavata/model/messaging/event/TaskOutputChangeEvent.java b/airavata-api/airavata-data-models/src/main/java/org/apache/airavata/model/messaging/event/TaskOutputChangeEvent.java
index d73ab63..fbbd6c0 100644
--- a/airavata-api/airavata-data-models/src/main/java/org/apache/airavata/model/messaging/event/TaskOutputChangeEvent.java
+++ b/airavata-api/airavata-data-models/src/main/java/org/apache/airavata/model/messaging/event/TaskOutputChangeEvent.java
@@ -62,7 +62,7 @@ import org.slf4j.LoggerFactory;
   }
 
   private List<org.apache.airavata.model.workspace.experiment.DataObjectType> output; // required
-  private TaskIdentity taskIdentity; // required
+  private TaskIdentifier taskIdentity; // required
 
   /** The set of fields this struct contains, along with convenience methods for finding and manipulating them. */
   @SuppressWarnings("all") public enum _Fields implements org.apache.thrift.TFieldIdEnum {
@@ -133,7 +133,7 @@ import org.slf4j.LoggerFactory;
         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.workspace.experiment.DataObjectType.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, TaskIdentity.class)));
+        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);
   }
@@ -143,7 +143,7 @@ import org.slf4j.LoggerFactory;
 
   public TaskOutputChangeEvent(
     List<org.apache.airavata.model.workspace.experiment.DataObjectType> output,
-    TaskIdentity taskIdentity)
+    TaskIdentifier taskIdentity)
   {
     this();
     this.output = output;
@@ -162,7 +162,7 @@ import org.slf4j.LoggerFactory;
       this.output = __this__output;
     }
     if (other.isSetTaskIdentity()) {
-      this.taskIdentity = new TaskIdentity(other.taskIdentity);
+      this.taskIdentity = new TaskIdentifier(other.taskIdentity);
     }
   }
 
@@ -214,11 +214,11 @@ import org.slf4j.LoggerFactory;
     }
   }
 
-  public TaskIdentity getTaskIdentity() {
+  public TaskIdentifier getTaskIdentity() {
     return this.taskIdentity;
   }
 
-  public void setTaskIdentity(TaskIdentity taskIdentity) {
+  public void setTaskIdentity(TaskIdentifier taskIdentity) {
     this.taskIdentity = taskIdentity;
   }
 
@@ -251,7 +251,7 @@ import org.slf4j.LoggerFactory;
       if (value == null) {
         unsetTaskIdentity();
       } else {
-        setTaskIdentity((TaskIdentity)value);
+        setTaskIdentity((TaskIdentifier)value);
       }
       break;
 
@@ -462,7 +462,7 @@ import org.slf4j.LoggerFactory;
             break;
           case 2: // TASK_IDENTITY
             if (schemeField.type == org.apache.thrift.protocol.TType.STRUCT) {
-              struct.taskIdentity = new TaskIdentity();
+              struct.taskIdentity = new TaskIdentifier();
               struct.taskIdentity.read(iprot);
               struct.setTaskIdentityIsSet(true);
             } else { 
@@ -541,7 +541,7 @@ import org.slf4j.LoggerFactory;
         }
       }
       struct.setOutputIsSet(true);
-      struct.taskIdentity = new TaskIdentity();
+      struct.taskIdentity = new TaskIdentifier();
       struct.taskIdentity.read(iprot);
       struct.setTaskIdentityIsSet(true);
     }

http://git-wip-us.apache.org/repos/asf/airavata/blob/255dd9e3/airavata-api/airavata-data-models/src/main/java/org/apache/airavata/model/messaging/event/TaskStatusChangeEvent.java
----------------------------------------------------------------------
diff --git a/airavata-api/airavata-data-models/src/main/java/org/apache/airavata/model/messaging/event/TaskStatusChangeEvent.java b/airavata-api/airavata-data-models/src/main/java/org/apache/airavata/model/messaging/event/TaskStatusChangeEvent.java
index a206f0b..cc0adcc 100644
--- a/airavata-api/airavata-data-models/src/main/java/org/apache/airavata/model/messaging/event/TaskStatusChangeEvent.java
+++ b/airavata-api/airavata-data-models/src/main/java/org/apache/airavata/model/messaging/event/TaskStatusChangeEvent.java
@@ -62,7 +62,7 @@ import org.slf4j.LoggerFactory;
   }
 
   private org.apache.airavata.model.workspace.experiment.TaskState state; // required
-  private TaskIdentity taskIdentity; // required
+  private TaskIdentifier taskIdentity; // required
 
   /** The set of fields this struct contains, along with convenience methods for finding and manipulating them. */
   @SuppressWarnings("all") public enum _Fields implements org.apache.thrift.TFieldIdEnum {
@@ -136,7 +136,7 @@ import org.slf4j.LoggerFactory;
     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.workspace.experiment.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, TaskIdentity.class)));
+        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);
   }
@@ -146,7 +146,7 @@ import org.slf4j.LoggerFactory;
 
   public TaskStatusChangeEvent(
     org.apache.airavata.model.workspace.experiment.TaskState state,
-    TaskIdentity taskIdentity)
+    TaskIdentifier taskIdentity)
   {
     this();
     this.state = state;
@@ -161,7 +161,7 @@ import org.slf4j.LoggerFactory;
       this.state = other.state;
     }
     if (other.isSetTaskIdentity()) {
-      this.taskIdentity = new TaskIdentity(other.taskIdentity);
+      this.taskIdentity = new TaskIdentifier(other.taskIdentity);
     }
   }
 
@@ -206,11 +206,11 @@ import org.slf4j.LoggerFactory;
     }
   }
 
-  public TaskIdentity getTaskIdentity() {
+  public TaskIdentifier getTaskIdentity() {
     return this.taskIdentity;
   }
 
-  public void setTaskIdentity(TaskIdentity taskIdentity) {
+  public void setTaskIdentity(TaskIdentifier taskIdentity) {
     this.taskIdentity = taskIdentity;
   }
 
@@ -243,7 +243,7 @@ import org.slf4j.LoggerFactory;
       if (value == null) {
         unsetTaskIdentity();
       } else {
-        setTaskIdentity((TaskIdentity)value);
+        setTaskIdentity((TaskIdentifier)value);
       }
       break;
 
@@ -443,7 +443,7 @@ import org.slf4j.LoggerFactory;
             break;
           case 2: // TASK_IDENTITY
             if (schemeField.type == org.apache.thrift.protocol.TType.STRUCT) {
-              struct.taskIdentity = new TaskIdentity();
+              struct.taskIdentity = new TaskIdentifier();
               struct.taskIdentity.read(iprot);
               struct.setTaskIdentityIsSet(true);
             } else { 
@@ -499,7 +499,7 @@ import org.slf4j.LoggerFactory;
       TTupleProtocol iprot = (TTupleProtocol) prot;
       struct.state = org.apache.airavata.model.workspace.experiment.TaskState.findByValue(iprot.readI32());
       struct.setStateIsSet(true);
-      struct.taskIdentity = new TaskIdentity();
+      struct.taskIdentity = new TaskIdentifier();
       struct.taskIdentity.read(iprot);
       struct.setTaskIdentityIsSet(true);
     }

http://git-wip-us.apache.org/repos/asf/airavata/blob/255dd9e3/airavata-api/airavata-data-models/src/main/java/org/apache/airavata/model/messaging/event/TaskStatusChangeRequestEvent.java
----------------------------------------------------------------------
diff --git a/airavata-api/airavata-data-models/src/main/java/org/apache/airavata/model/messaging/event/TaskStatusChangeRequestEvent.java b/airavata-api/airavata-data-models/src/main/java/org/apache/airavata/model/messaging/event/TaskStatusChangeRequestEvent.java
new file mode 100644
index 0000000..d63a602
--- /dev/null
+++ b/airavata-api/airavata-data-models/src/main/java/org/apache/airavata/model/messaging/event/TaskStatusChangeRequestEvent.java
@@ -0,0 +1,509 @@
+/**
+ * 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 (0.9.1)
+ *
+ * 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 org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+@SuppressWarnings("all") 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());
+  }
+
+  private org.apache.airavata.model.workspace.experiment.TaskState state; // required
+  private TaskIdentifier taskIdentity; // required
+
+  /** The set of fields this struct contains, along with convenience methods for finding and manipulating them. */
+  @SuppressWarnings("all") public enum _Fields implements org.apache.thrift.TFieldIdEnum {
+    /**
+     * 
+     * @see org.apache.airavata.model.workspace.experiment.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.workspace.experiment.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.workspace.experiment.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.workspace.experiment.TaskState
+   */
+  public org.apache.airavata.model.workspace.experiment.TaskState getState() {
+    return this.state;
+  }
+
+  /**
+   * 
+   * @see org.apache.airavata.model.workspace.experiment.TaskState
+   */
+  public void setState(org.apache.airavata.model.workspace.experiment.TaskState state) {
+    this.state = state;
+  }
+
+  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 void setTaskIdentity(TaskIdentifier taskIdentity) {
+    this.taskIdentity = taskIdentity;
+  }
+
+  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.workspace.experiment.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() {
+    return 0;
+  }
+
+  @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 (!isSetState()) {
+      throw new org.apache.thrift.protocol.TProtocolException("Required field 'state' is unset! Struct:" + toString());
+    }
+
+    if (!isSetTaskIdentity()) {
+      throw new org.apache.thrift.protocol.TProtocolException("Required field 'taskIdentity' is unset! 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.workspace.experiment.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();
+      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.workspace.experiment.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/255dd9e3/airavata-api/airavata-data-models/src/main/java/org/apache/airavata/model/messaging/event/WorkflowIdentifier.java
----------------------------------------------------------------------
diff --git a/airavata-api/airavata-data-models/src/main/java/org/apache/airavata/model/messaging/event/WorkflowIdentifier.java b/airavata-api/airavata-data-models/src/main/java/org/apache/airavata/model/messaging/event/WorkflowIdentifier.java
new file mode 100644
index 0000000..afa498f
--- /dev/null
+++ b/airavata-api/airavata-data-models/src/main/java/org/apache/airavata/model/messaging/event/WorkflowIdentifier.java
@@ -0,0 +1,492 @@
+/**
+ * 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 (0.9.1)
+ *
+ * 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 org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+@SuppressWarnings("all") public class WorkflowIdentifier implements org.apache.thrift.TBase<WorkflowIdentifier, WorkflowIdentifier._Fields>, java.io.Serializable, Cloneable, Comparable<WorkflowIdentifier> {
+  private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("WorkflowIdentifier");
+
+  private static final org.apache.thrift.protocol.TField WORKFLOW_NODE_ID_FIELD_DESC = new org.apache.thrift.protocol.TField("workflowNodeId", org.apache.thrift.protocol.TType.STRING, (short)1);
+  private static final org.apache.thrift.protocol.TField EXPERIMENT_ID_FIELD_DESC = new org.apache.thrift.protocol.TField("experimentId", 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 WorkflowIdentifierStandardSchemeFactory());
+    schemes.put(TupleScheme.class, new WorkflowIdentifierTupleSchemeFactory());
+  }
+
+  private String workflowNodeId; // required
+  private String experimentId; // required
+
+  /** The set of fields this struct contains, along with convenience methods for finding and manipulating them. */
+  @SuppressWarnings("all") public enum _Fields implements org.apache.thrift.TFieldIdEnum {
+    WORKFLOW_NODE_ID((short)1, "workflowNodeId"),
+    EXPERIMENT_ID((short)2, "experimentId");
+
+    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: // WORKFLOW_NODE_ID
+          return WORKFLOW_NODE_ID;
+        case 2: // EXPERIMENT_ID
+          return EXPERIMENT_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.WORKFLOW_NODE_ID, new org.apache.thrift.meta_data.FieldMetaData("workflowNodeId", org.apache.thrift.TFieldRequirementType.REQUIRED, 
+        new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.STRING)));
+    tmpMap.put(_Fields.EXPERIMENT_ID, new org.apache.thrift.meta_data.FieldMetaData("experimentId", org.apache.thrift.TFieldRequirementType.REQUIRED, 
+        new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.STRING)));
+    metaDataMap = Collections.unmodifiableMap(tmpMap);
+    org.apache.thrift.meta_data.FieldMetaData.addStructMetaDataMap(WorkflowIdentifier.class, metaDataMap);
+  }
+
+  public WorkflowIdentifier() {
+  }
+
+  public WorkflowIdentifier(
+    String workflowNodeId,
+    String experimentId)
+  {
+    this();
+    this.workflowNodeId = workflowNodeId;
+    this.experimentId = experimentId;
+  }
+
+  /**
+   * Performs a deep copy on <i>other</i>.
+   */
+  public WorkflowIdentifier(WorkflowIdentifier other) {
+    if (other.isSetWorkflowNodeId()) {
+      this.workflowNodeId = other.workflowNodeId;
+    }
+    if (other.isSetExperimentId()) {
+      this.experimentId = other.experimentId;
+    }
+  }
+
+  public WorkflowIdentifier deepCopy() {
+    return new WorkflowIdentifier(this);
+  }
+
+  @Override
+  public void clear() {
+    this.workflowNodeId = null;
+    this.experimentId = null;
+  }
+
+  public String getWorkflowNodeId() {
+    return this.workflowNodeId;
+  }
+
+  public void setWorkflowNodeId(String workflowNodeId) {
+    this.workflowNodeId = workflowNodeId;
+  }
+
+  public void unsetWorkflowNodeId() {
+    this.workflowNodeId = null;
+  }
+
+  /** Returns true if field workflowNodeId is set (has been assigned a value) and false otherwise */
+  public boolean isSetWorkflowNodeId() {
+    return this.workflowNodeId != null;
+  }
+
+  public void setWorkflowNodeIdIsSet(boolean value) {
+    if (!value) {
+      this.workflowNodeId = null;
+    }
+  }
+
+  public String getExperimentId() {
+    return this.experimentId;
+  }
+
+  public void setExperimentId(String experimentId) {
+    this.experimentId = experimentId;
+  }
+
+  public void unsetExperimentId() {
+    this.experimentId = null;
+  }
+
+  /** Returns true if field experimentId is set (has been assigned a value) and false otherwise */
+  public boolean isSetExperimentId() {
+    return this.experimentId != null;
+  }
+
+  public void setExperimentIdIsSet(boolean value) {
+    if (!value) {
+      this.experimentId = null;
+    }
+  }
+
+  public void setFieldValue(_Fields field, Object value) {
+    switch (field) {
+    case WORKFLOW_NODE_ID:
+      if (value == null) {
+        unsetWorkflowNodeId();
+      } else {
+        setWorkflowNodeId((String)value);
+      }
+      break;
+
+    case EXPERIMENT_ID:
+      if (value == null) {
+        unsetExperimentId();
+      } else {
+        setExperimentId((String)value);
+      }
+      break;
+
+    }
+  }
+
+  public Object getFieldValue(_Fields field) {
+    switch (field) {
+    case WORKFLOW_NODE_ID:
+      return getWorkflowNodeId();
+
+    case EXPERIMENT_ID:
+      return getExperimentId();
+
+    }
+    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 WORKFLOW_NODE_ID:
+      return isSetWorkflowNodeId();
+    case EXPERIMENT_ID:
+      return isSetExperimentId();
+    }
+    throw new IllegalStateException();
+  }
+
+  @Override
+  public boolean equals(Object that) {
+    if (that == null)
+      return false;
+    if (that instanceof WorkflowIdentifier)
+      return this.equals((WorkflowIdentifier)that);
+    return false;
+  }
+
+  public boolean equals(WorkflowIdentifier that) {
+    if (that == null)
+      return false;
+
+    boolean this_present_workflowNodeId = true && this.isSetWorkflowNodeId();
+    boolean that_present_workflowNodeId = true && that.isSetWorkflowNodeId();
+    if (this_present_workflowNodeId || that_present_workflowNodeId) {
+      if (!(this_present_workflowNodeId && that_present_workflowNodeId))
+        return false;
+      if (!this.workflowNodeId.equals(that.workflowNodeId))
+        return false;
+    }
+
+    boolean this_present_experimentId = true && this.isSetExperimentId();
+    boolean that_present_experimentId = true && that.isSetExperimentId();
+    if (this_present_experimentId || that_present_experimentId) {
+      if (!(this_present_experimentId && that_present_experimentId))
+        return false;
+      if (!this.experimentId.equals(that.experimentId))
+        return false;
+    }
+
+    return true;
+  }
+
+  @Override
+  public int hashCode() {
+    return 0;
+  }
+
+  @Override
+  public int compareTo(WorkflowIdentifier other) {
+    if (!getClass().equals(other.getClass())) {
+      return getClass().getName().compareTo(other.getClass().getName());
+    }
+
+    int lastComparison = 0;
+
+    lastComparison = Boolean.valueOf(isSetWorkflowNodeId()).compareTo(other.isSetWorkflowNodeId());
+    if (lastComparison != 0) {
+      return lastComparison;
+    }
+    if (isSetWorkflowNodeId()) {
+      lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.workflowNodeId, other.workflowNodeId);
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+    }
+    lastComparison = Boolean.valueOf(isSetExperimentId()).compareTo(other.isSetExperimentId());
+    if (lastComparison != 0) {
+      return lastComparison;
+    }
+    if (isSetExperimentId()) {
+      lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.experimentId, other.experimentId);
+      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("WorkflowIdentifier(");
+    boolean first = true;
+
+    sb.append("workflowNodeId:");
+    if (this.workflowNodeId == null) {
+      sb.append("null");
+    } else {
+      sb.append(this.workflowNodeId);
+    }
+    first = false;
+    if (!first) sb.append(", ");
+    sb.append("experimentId:");
+    if (this.experimentId == null) {
+      sb.append("null");
+    } else {
+      sb.append(this.experimentId);
+    }
+    first = false;
+    sb.append(")");
+    return sb.toString();
+  }
+
+  public void validate() throws org.apache.thrift.TException {
+    // check for required fields
+    if (!isSetWorkflowNodeId()) {
+      throw new org.apache.thrift.protocol.TProtocolException("Required field 'workflowNodeId' is unset! Struct:" + toString());
+    }
+
+    if (!isSetExperimentId()) {
+      throw new org.apache.thrift.protocol.TProtocolException("Required field 'experimentId' is unset! Struct:" + toString());
+    }
+
+    // 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 WorkflowIdentifierStandardSchemeFactory implements SchemeFactory {
+    public WorkflowIdentifierStandardScheme getScheme() {
+      return new WorkflowIdentifierStandardScheme();
+    }
+  }
+
+  private static class WorkflowIdentifierStandardScheme extends StandardScheme<WorkflowIdentifier> {
+
+    public void read(org.apache.thrift.protocol.TProtocol iprot, WorkflowIdentifier 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: // WORKFLOW_NODE_ID
+            if (schemeField.type == org.apache.thrift.protocol.TType.STRING) {
+              struct.workflowNodeId = iprot.readString();
+              struct.setWorkflowNodeIdIsSet(true);
+            } else { 
+              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+            }
+            break;
+          case 2: // EXPERIMENT_ID
+            if (schemeField.type == org.apache.thrift.protocol.TType.STRING) {
+              struct.experimentId = iprot.readString();
+              struct.setExperimentIdIsSet(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();
+      struct.validate();
+    }
+
+    public void write(org.apache.thrift.protocol.TProtocol oprot, WorkflowIdentifier struct) throws org.apache.thrift.TException {
+      struct.validate();
+
+      oprot.writeStructBegin(STRUCT_DESC);
+      if (struct.workflowNodeId != null) {
+        oprot.writeFieldBegin(WORKFLOW_NODE_ID_FIELD_DESC);
+        oprot.writeString(struct.workflowNodeId);
+        oprot.writeFieldEnd();
+      }
+      if (struct.experimentId != null) {
+        oprot.writeFieldBegin(EXPERIMENT_ID_FIELD_DESC);
+        oprot.writeString(struct.experimentId);
+        oprot.writeFieldEnd();
+      }
+      oprot.writeFieldStop();
+      oprot.writeStructEnd();
+    }
+
+  }
+
+  private static class WorkflowIdentifierTupleSchemeFactory implements SchemeFactory {
+    public WorkflowIdentifierTupleScheme getScheme() {
+      return new WorkflowIdentifierTupleScheme();
+    }
+  }
+
+  private static class WorkflowIdentifierTupleScheme extends TupleScheme<WorkflowIdentifier> {
+
+    @Override
+    public void write(org.apache.thrift.protocol.TProtocol prot, WorkflowIdentifier struct) throws org.apache.thrift.TException {
+      TTupleProtocol oprot = (TTupleProtocol) prot;
+      oprot.writeString(struct.workflowNodeId);
+      oprot.writeString(struct.experimentId);
+    }
+
+    @Override
+    public void read(org.apache.thrift.protocol.TProtocol prot, WorkflowIdentifier struct) throws org.apache.thrift.TException {
+      TTupleProtocol iprot = (TTupleProtocol) prot;
+      struct.workflowNodeId = iprot.readString();
+      struct.setWorkflowNodeIdIsSet(true);
+      struct.experimentId = iprot.readString();
+      struct.setExperimentIdIsSet(true);
+    }
+  }
+
+}
+


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