[08/13] zeppelin git commit: ZEPPELIN-2035. BI directional RPC framework between ZeppelinServer and InterpreterProcess on top of thrift

[zj...@apache.org]

http://git-wip-us.apache.org/repos/asf/zeppelin/blob/7af86168/zeppelin-interpreter/src/main/java/org/apache/zeppelin/interpreter/thrift/OutputUpdateEvent.java
----------------------------------------------------------------------
diff --git a/zeppelin-interpreter/src/main/java/org/apache/zeppelin/interpreter/thrift/OutputUpdateEvent.java b/zeppelin-interpreter/src/main/java/org/apache/zeppelin/interpreter/thrift/OutputUpdateEvent.java
new file mode 100644
index 0000000..1d9a95d
--- /dev/null
+++ b/zeppelin-interpreter/src/main/java/org/apache/zeppelin/interpreter/thrift/OutputUpdateEvent.java
@@ -0,0 +1,938 @@
+/**
+ * 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.zeppelin.interpreter.thrift;
+
+import org.apache.thrift.scheme.IScheme;
+import org.apache.thrift.scheme.SchemeFactory;
+import org.apache.thrift.scheme.StandardScheme;
+
+import org.apache.thrift.scheme.TupleScheme;
+import org.apache.thrift.protocol.TTupleProtocol;
+import org.apache.thrift.protocol.TProtocolException;
+import org.apache.thrift.EncodingUtils;
+import org.apache.thrift.TException;
+import org.apache.thrift.async.AsyncMethodCallback;
+import org.apache.thrift.server.AbstractNonblockingServer.*;
+import java.util.List;
+import java.util.ArrayList;
+import java.util.Map;
+import java.util.HashMap;
+import java.util.EnumMap;
+import java.util.Set;
+import java.util.HashSet;
+import java.util.EnumSet;
+import java.util.Collections;
+import java.util.BitSet;
+import java.nio.ByteBuffer;
+import java.util.Arrays;
+import 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 = "2018-5-29")
+public class OutputUpdateEvent implements org.apache.thrift.TBase<OutputUpdateEvent, OutputUpdateEvent._Fields>, java.io.Serializable, Cloneable, Comparable<OutputUpdateEvent> {
+  private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("OutputUpdateEvent");
+
+  private static final org.apache.thrift.protocol.TField NOTE_ID_FIELD_DESC = new org.apache.thrift.protocol.TField("noteId", org.apache.thrift.protocol.TType.STRING, (short)1);
+  private static final org.apache.thrift.protocol.TField PARAGRAPH_ID_FIELD_DESC = new org.apache.thrift.protocol.TField("paragraphId", org.apache.thrift.protocol.TType.STRING, (short)2);
+  private static final org.apache.thrift.protocol.TField INDEX_FIELD_DESC = new org.apache.thrift.protocol.TField("index", org.apache.thrift.protocol.TType.I32, (short)3);
+  private static final org.apache.thrift.protocol.TField TYPE_FIELD_DESC = new org.apache.thrift.protocol.TField("type", org.apache.thrift.protocol.TType.STRING, (short)4);
+  private static final org.apache.thrift.protocol.TField DATA_FIELD_DESC = new org.apache.thrift.protocol.TField("data", org.apache.thrift.protocol.TType.STRING, (short)5);
+  private static final org.apache.thrift.protocol.TField APP_ID_FIELD_DESC = new org.apache.thrift.protocol.TField("appId", org.apache.thrift.protocol.TType.STRING, (short)6);
+
+  private static final Map<Class<? extends IScheme>, SchemeFactory> schemes = new HashMap<Class<? extends IScheme>, SchemeFactory>();
+  static {
+    schemes.put(StandardScheme.class, new OutputUpdateEventStandardSchemeFactory());
+    schemes.put(TupleScheme.class, new OutputUpdateEventTupleSchemeFactory());
+  }
+
+  public String noteId; // required
+  public String paragraphId; // required
+  public int index; // required
+  public String type; // required
+  public String data; // required
+  public String appId; // 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 {
+    NOTE_ID((short)1, "noteId"),
+    PARAGRAPH_ID((short)2, "paragraphId"),
+    INDEX((short)3, "index"),
+    TYPE((short)4, "type"),
+    DATA((short)5, "data"),
+    APP_ID((short)6, "appId");
+
+    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: // NOTE_ID
+          return NOTE_ID;
+        case 2: // PARAGRAPH_ID
+          return PARAGRAPH_ID;
+        case 3: // INDEX
+          return INDEX;
+        case 4: // TYPE
+          return TYPE;
+        case 5: // DATA
+          return DATA;
+        case 6: // APP_ID
+          return APP_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
+  private static final int __INDEX_ISSET_ID = 0;
+  private byte __isset_bitfield = 0;
+  public static final Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> metaDataMap;
+  static {
+    Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> tmpMap = new EnumMap<_Fields, org.apache.thrift.meta_data.FieldMetaData>(_Fields.class);
+    tmpMap.put(_Fields.NOTE_ID, new org.apache.thrift.meta_data.FieldMetaData("noteId", org.apache.thrift.TFieldRequirementType.DEFAULT, 
+        new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.STRING)));
+    tmpMap.put(_Fields.PARAGRAPH_ID, new org.apache.thrift.meta_data.FieldMetaData("paragraphId", org.apache.thrift.TFieldRequirementType.DEFAULT, 
+        new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.STRING)));
+    tmpMap.put(_Fields.INDEX, new org.apache.thrift.meta_data.FieldMetaData("index", org.apache.thrift.TFieldRequirementType.DEFAULT, 
+        new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.I32)));
+    tmpMap.put(_Fields.TYPE, new org.apache.thrift.meta_data.FieldMetaData("type", org.apache.thrift.TFieldRequirementType.DEFAULT, 
+        new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.STRING)));
+    tmpMap.put(_Fields.DATA, new org.apache.thrift.meta_data.FieldMetaData("data", org.apache.thrift.TFieldRequirementType.DEFAULT, 
+        new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.STRING)));
+    tmpMap.put(_Fields.APP_ID, new org.apache.thrift.meta_data.FieldMetaData("appId", org.apache.thrift.TFieldRequirementType.DEFAULT, 
+        new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.STRING)));
+    metaDataMap = Collections.unmodifiableMap(tmpMap);
+    org.apache.thrift.meta_data.FieldMetaData.addStructMetaDataMap(OutputUpdateEvent.class, metaDataMap);
+  }
+
+  public OutputUpdateEvent() {
+  }
+
+  public OutputUpdateEvent(
+    String noteId,
+    String paragraphId,
+    int index,
+    String type,
+    String data,
+    String appId)
+  {
+    this();
+    this.noteId = noteId;
+    this.paragraphId = paragraphId;
+    this.index = index;
+    setIndexIsSet(true);
+    this.type = type;
+    this.data = data;
+    this.appId = appId;
+  }
+
+  /**
+   * Performs a deep copy on <i>other</i>.
+   */
+  public OutputUpdateEvent(OutputUpdateEvent other) {
+    __isset_bitfield = other.__isset_bitfield;
+    if (other.isSetNoteId()) {
+      this.noteId = other.noteId;
+    }
+    if (other.isSetParagraphId()) {
+      this.paragraphId = other.paragraphId;
+    }
+    this.index = other.index;
+    if (other.isSetType()) {
+      this.type = other.type;
+    }
+    if (other.isSetData()) {
+      this.data = other.data;
+    }
+    if (other.isSetAppId()) {
+      this.appId = other.appId;
+    }
+  }
+
+  public OutputUpdateEvent deepCopy() {
+    return new OutputUpdateEvent(this);
+  }
+
+  @Override
+  public void clear() {
+    this.noteId = null;
+    this.paragraphId = null;
+    setIndexIsSet(false);
+    this.index = 0;
+    this.type = null;
+    this.data = null;
+    this.appId = null;
+  }
+
+  public String getNoteId() {
+    return this.noteId;
+  }
+
+  public OutputUpdateEvent setNoteId(String noteId) {
+    this.noteId = noteId;
+    return this;
+  }
+
+  public void unsetNoteId() {
+    this.noteId = null;
+  }
+
+  /** Returns true if field noteId is set (has been assigned a value) and false otherwise */
+  public boolean isSetNoteId() {
+    return this.noteId != null;
+  }
+
+  public void setNoteIdIsSet(boolean value) {
+    if (!value) {
+      this.noteId = null;
+    }
+  }
+
+  public String getParagraphId() {
+    return this.paragraphId;
+  }
+
+  public OutputUpdateEvent setParagraphId(String paragraphId) {
+    this.paragraphId = paragraphId;
+    return this;
+  }
+
+  public void unsetParagraphId() {
+    this.paragraphId = null;
+  }
+
+  /** Returns true if field paragraphId is set (has been assigned a value) and false otherwise */
+  public boolean isSetParagraphId() {
+    return this.paragraphId != null;
+  }
+
+  public void setParagraphIdIsSet(boolean value) {
+    if (!value) {
+      this.paragraphId = null;
+    }
+  }
+
+  public int getIndex() {
+    return this.index;
+  }
+
+  public OutputUpdateEvent setIndex(int index) {
+    this.index = index;
+    setIndexIsSet(true);
+    return this;
+  }
+
+  public void unsetIndex() {
+    __isset_bitfield = EncodingUtils.clearBit(__isset_bitfield, __INDEX_ISSET_ID);
+  }
+
+  /** Returns true if field index is set (has been assigned a value) and false otherwise */
+  public boolean isSetIndex() {
+    return EncodingUtils.testBit(__isset_bitfield, __INDEX_ISSET_ID);
+  }
+
+  public void setIndexIsSet(boolean value) {
+    __isset_bitfield = EncodingUtils.setBit(__isset_bitfield, __INDEX_ISSET_ID, value);
+  }
+
+  public String getType() {
+    return this.type;
+  }
+
+  public OutputUpdateEvent setType(String type) {
+    this.type = type;
+    return this;
+  }
+
+  public void unsetType() {
+    this.type = null;
+  }
+
+  /** Returns true if field type is set (has been assigned a value) and false otherwise */
+  public boolean isSetType() {
+    return this.type != null;
+  }
+
+  public void setTypeIsSet(boolean value) {
+    if (!value) {
+      this.type = null;
+    }
+  }
+
+  public String getData() {
+    return this.data;
+  }
+
+  public OutputUpdateEvent setData(String data) {
+    this.data = data;
+    return this;
+  }
+
+  public void unsetData() {
+    this.data = null;
+  }
+
+  /** Returns true if field data is set (has been assigned a value) and false otherwise */
+  public boolean isSetData() {
+    return this.data != null;
+  }
+
+  public void setDataIsSet(boolean value) {
+    if (!value) {
+      this.data = null;
+    }
+  }
+
+  public String getAppId() {
+    return this.appId;
+  }
+
+  public OutputUpdateEvent setAppId(String appId) {
+    this.appId = appId;
+    return this;
+  }
+
+  public void unsetAppId() {
+    this.appId = null;
+  }
+
+  /** Returns true if field appId is set (has been assigned a value) and false otherwise */
+  public boolean isSetAppId() {
+    return this.appId != null;
+  }
+
+  public void setAppIdIsSet(boolean value) {
+    if (!value) {
+      this.appId = null;
+    }
+  }
+
+  public void setFieldValue(_Fields field, Object value) {
+    switch (field) {
+    case NOTE_ID:
+      if (value == null) {
+        unsetNoteId();
+      } else {
+        setNoteId((String)value);
+      }
+      break;
+
+    case PARAGRAPH_ID:
+      if (value == null) {
+        unsetParagraphId();
+      } else {
+        setParagraphId((String)value);
+      }
+      break;
+
+    case INDEX:
+      if (value == null) {
+        unsetIndex();
+      } else {
+        setIndex((Integer)value);
+      }
+      break;
+
+    case TYPE:
+      if (value == null) {
+        unsetType();
+      } else {
+        setType((String)value);
+      }
+      break;
+
+    case DATA:
+      if (value == null) {
+        unsetData();
+      } else {
+        setData((String)value);
+      }
+      break;
+
+    case APP_ID:
+      if (value == null) {
+        unsetAppId();
+      } else {
+        setAppId((String)value);
+      }
+      break;
+
+    }
+  }
+
+  public Object getFieldValue(_Fields field) {
+    switch (field) {
+    case NOTE_ID:
+      return getNoteId();
+
+    case PARAGRAPH_ID:
+      return getParagraphId();
+
+    case INDEX:
+      return Integer.valueOf(getIndex());
+
+    case TYPE:
+      return getType();
+
+    case DATA:
+      return getData();
+
+    case APP_ID:
+      return getAppId();
+
+    }
+    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 NOTE_ID:
+      return isSetNoteId();
+    case PARAGRAPH_ID:
+      return isSetParagraphId();
+    case INDEX:
+      return isSetIndex();
+    case TYPE:
+      return isSetType();
+    case DATA:
+      return isSetData();
+    case APP_ID:
+      return isSetAppId();
+    }
+    throw new IllegalStateException();
+  }
+
+  @Override
+  public boolean equals(Object that) {
+    if (that == null)
+      return false;
+    if (that instanceof OutputUpdateEvent)
+      return this.equals((OutputUpdateEvent)that);
+    return false;
+  }
+
+  public boolean equals(OutputUpdateEvent that) {
+    if (that == null)
+      return false;
+
+    boolean this_present_noteId = true && this.isSetNoteId();
+    boolean that_present_noteId = true && that.isSetNoteId();
+    if (this_present_noteId || that_present_noteId) {
+      if (!(this_present_noteId && that_present_noteId))
+        return false;
+      if (!this.noteId.equals(that.noteId))
+        return false;
+    }
+
+    boolean this_present_paragraphId = true && this.isSetParagraphId();
+    boolean that_present_paragraphId = true && that.isSetParagraphId();
+    if (this_present_paragraphId || that_present_paragraphId) {
+      if (!(this_present_paragraphId && that_present_paragraphId))
+        return false;
+      if (!this.paragraphId.equals(that.paragraphId))
+        return false;
+    }
+
+    boolean this_present_index = true;
+    boolean that_present_index = true;
+    if (this_present_index || that_present_index) {
+      if (!(this_present_index && that_present_index))
+        return false;
+      if (this.index != that.index)
+        return false;
+    }
+
+    boolean this_present_type = true && this.isSetType();
+    boolean that_present_type = true && that.isSetType();
+    if (this_present_type || that_present_type) {
+      if (!(this_present_type && that_present_type))
+        return false;
+      if (!this.type.equals(that.type))
+        return false;
+    }
+
+    boolean this_present_data = true && this.isSetData();
+    boolean that_present_data = true && that.isSetData();
+    if (this_present_data || that_present_data) {
+      if (!(this_present_data && that_present_data))
+        return false;
+      if (!this.data.equals(that.data))
+        return false;
+    }
+
+    boolean this_present_appId = true && this.isSetAppId();
+    boolean that_present_appId = true && that.isSetAppId();
+    if (this_present_appId || that_present_appId) {
+      if (!(this_present_appId && that_present_appId))
+        return false;
+      if (!this.appId.equals(that.appId))
+        return false;
+    }
+
+    return true;
+  }
+
+  @Override
+  public int hashCode() {
+    List<Object> list = new ArrayList<Object>();
+
+    boolean present_noteId = true && (isSetNoteId());
+    list.add(present_noteId);
+    if (present_noteId)
+      list.add(noteId);
+
+    boolean present_paragraphId = true && (isSetParagraphId());
+    list.add(present_paragraphId);
+    if (present_paragraphId)
+      list.add(paragraphId);
+
+    boolean present_index = true;
+    list.add(present_index);
+    if (present_index)
+      list.add(index);
+
+    boolean present_type = true && (isSetType());
+    list.add(present_type);
+    if (present_type)
+      list.add(type);
+
+    boolean present_data = true && (isSetData());
+    list.add(present_data);
+    if (present_data)
+      list.add(data);
+
+    boolean present_appId = true && (isSetAppId());
+    list.add(present_appId);
+    if (present_appId)
+      list.add(appId);
+
+    return list.hashCode();
+  }
+
+  @Override
+  public int compareTo(OutputUpdateEvent other) {
+    if (!getClass().equals(other.getClass())) {
+      return getClass().getName().compareTo(other.getClass().getName());
+    }
+
+    int lastComparison = 0;
+
+    lastComparison = Boolean.valueOf(isSetNoteId()).compareTo(other.isSetNoteId());
+    if (lastComparison != 0) {
+      return lastComparison;
+    }
+    if (isSetNoteId()) {
+      lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.noteId, other.noteId);
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+    }
+    lastComparison = Boolean.valueOf(isSetParagraphId()).compareTo(other.isSetParagraphId());
+    if (lastComparison != 0) {
+      return lastComparison;
+    }
+    if (isSetParagraphId()) {
+      lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.paragraphId, other.paragraphId);
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+    }
+    lastComparison = Boolean.valueOf(isSetIndex()).compareTo(other.isSetIndex());
+    if (lastComparison != 0) {
+      return lastComparison;
+    }
+    if (isSetIndex()) {
+      lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.index, other.index);
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+    }
+    lastComparison = Boolean.valueOf(isSetType()).compareTo(other.isSetType());
+    if (lastComparison != 0) {
+      return lastComparison;
+    }
+    if (isSetType()) {
+      lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.type, other.type);
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+    }
+    lastComparison = Boolean.valueOf(isSetData()).compareTo(other.isSetData());
+    if (lastComparison != 0) {
+      return lastComparison;
+    }
+    if (isSetData()) {
+      lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.data, other.data);
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+    }
+    lastComparison = Boolean.valueOf(isSetAppId()).compareTo(other.isSetAppId());
+    if (lastComparison != 0) {
+      return lastComparison;
+    }
+    if (isSetAppId()) {
+      lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.appId, other.appId);
+      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("OutputUpdateEvent(");
+    boolean first = true;
+
+    sb.append("noteId:");
+    if (this.noteId == null) {
+      sb.append("null");
+    } else {
+      sb.append(this.noteId);
+    }
+    first = false;
+    if (!first) sb.append(", ");
+    sb.append("paragraphId:");
+    if (this.paragraphId == null) {
+      sb.append("null");
+    } else {
+      sb.append(this.paragraphId);
+    }
+    first = false;
+    if (!first) sb.append(", ");
+    sb.append("index:");
+    sb.append(this.index);
+    first = false;
+    if (!first) sb.append(", ");
+    sb.append("type:");
+    if (this.type == null) {
+      sb.append("null");
+    } else {
+      sb.append(this.type);
+    }
+    first = false;
+    if (!first) sb.append(", ");
+    sb.append("data:");
+    if (this.data == null) {
+      sb.append("null");
+    } else {
+      sb.append(this.data);
+    }
+    first = false;
+    if (!first) sb.append(", ");
+    sb.append("appId:");
+    if (this.appId == null) {
+      sb.append("null");
+    } else {
+      sb.append(this.appId);
+    }
+    first = false;
+    sb.append(")");
+    return sb.toString();
+  }
+
+  public void validate() throws org.apache.thrift.TException {
+    // check for required fields
+    // check for sub-struct validity
+  }
+
+  private void writeObject(java.io.ObjectOutputStream out) throws java.io.IOException {
+    try {
+      write(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(out)));
+    } catch (org.apache.thrift.TException te) {
+      throw new java.io.IOException(te);
+    }
+  }
+
+  private void readObject(java.io.ObjectInputStream in) throws java.io.IOException, ClassNotFoundException {
+    try {
+      // it doesn't seem like you should have to do this, but java serialization is wacky, and doesn't call the default constructor.
+      __isset_bitfield = 0;
+      read(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(in)));
+    } catch (org.apache.thrift.TException te) {
+      throw new java.io.IOException(te);
+    }
+  }
+
+  private static class OutputUpdateEventStandardSchemeFactory implements SchemeFactory {
+    public OutputUpdateEventStandardScheme getScheme() {
+      return new OutputUpdateEventStandardScheme();
+    }
+  }
+
+  private static class OutputUpdateEventStandardScheme extends StandardScheme<OutputUpdateEvent> {
+
+    public void read(org.apache.thrift.protocol.TProtocol iprot, OutputUpdateEvent 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: // NOTE_ID
+            if (schemeField.type == org.apache.thrift.protocol.TType.STRING) {
+              struct.noteId = iprot.readString();
+              struct.setNoteIdIsSet(true);
+            } else { 
+              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+            }
+            break;
+          case 2: // PARAGRAPH_ID
+            if (schemeField.type == org.apache.thrift.protocol.TType.STRING) {
+              struct.paragraphId = iprot.readString();
+              struct.setParagraphIdIsSet(true);
+            } else { 
+              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+            }
+            break;
+          case 3: // INDEX
+            if (schemeField.type == org.apache.thrift.protocol.TType.I32) {
+              struct.index = iprot.readI32();
+              struct.setIndexIsSet(true);
+            } else { 
+              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+            }
+            break;
+          case 4: // TYPE
+            if (schemeField.type == org.apache.thrift.protocol.TType.STRING) {
+              struct.type = iprot.readString();
+              struct.setTypeIsSet(true);
+            } else { 
+              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+            }
+            break;
+          case 5: // DATA
+            if (schemeField.type == org.apache.thrift.protocol.TType.STRING) {
+              struct.data = iprot.readString();
+              struct.setDataIsSet(true);
+            } else { 
+              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+            }
+            break;
+          case 6: // APP_ID
+            if (schemeField.type == org.apache.thrift.protocol.TType.STRING) {
+              struct.appId = iprot.readString();
+              struct.setAppIdIsSet(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, OutputUpdateEvent struct) throws org.apache.thrift.TException {
+      struct.validate();
+
+      oprot.writeStructBegin(STRUCT_DESC);
+      if (struct.noteId != null) {
+        oprot.writeFieldBegin(NOTE_ID_FIELD_DESC);
+        oprot.writeString(struct.noteId);
+        oprot.writeFieldEnd();
+      }
+      if (struct.paragraphId != null) {
+        oprot.writeFieldBegin(PARAGRAPH_ID_FIELD_DESC);
+        oprot.writeString(struct.paragraphId);
+        oprot.writeFieldEnd();
+      }
+      oprot.writeFieldBegin(INDEX_FIELD_DESC);
+      oprot.writeI32(struct.index);
+      oprot.writeFieldEnd();
+      if (struct.type != null) {
+        oprot.writeFieldBegin(TYPE_FIELD_DESC);
+        oprot.writeString(struct.type);
+        oprot.writeFieldEnd();
+      }
+      if (struct.data != null) {
+        oprot.writeFieldBegin(DATA_FIELD_DESC);
+        oprot.writeString(struct.data);
+        oprot.writeFieldEnd();
+      }
+      if (struct.appId != null) {
+        oprot.writeFieldBegin(APP_ID_FIELD_DESC);
+        oprot.writeString(struct.appId);
+        oprot.writeFieldEnd();
+      }
+      oprot.writeFieldStop();
+      oprot.writeStructEnd();
+    }
+
+  }
+
+  private static class OutputUpdateEventTupleSchemeFactory implements SchemeFactory {
+    public OutputUpdateEventTupleScheme getScheme() {
+      return new OutputUpdateEventTupleScheme();
+    }
+  }
+
+  private static class OutputUpdateEventTupleScheme extends TupleScheme<OutputUpdateEvent> {
+
+    @Override
+    public void write(org.apache.thrift.protocol.TProtocol prot, OutputUpdateEvent struct) throws org.apache.thrift.TException {
+      TTupleProtocol oprot = (TTupleProtocol) prot;
+      BitSet optionals = new BitSet();
+      if (struct.isSetNoteId()) {
+        optionals.set(0);
+      }
+      if (struct.isSetParagraphId()) {
+        optionals.set(1);
+      }
+      if (struct.isSetIndex()) {
+        optionals.set(2);
+      }
+      if (struct.isSetType()) {
+        optionals.set(3);
+      }
+      if (struct.isSetData()) {
+        optionals.set(4);
+      }
+      if (struct.isSetAppId()) {
+        optionals.set(5);
+      }
+      oprot.writeBitSet(optionals, 6);
+      if (struct.isSetNoteId()) {
+        oprot.writeString(struct.noteId);
+      }
+      if (struct.isSetParagraphId()) {
+        oprot.writeString(struct.paragraphId);
+      }
+      if (struct.isSetIndex()) {
+        oprot.writeI32(struct.index);
+      }
+      if (struct.isSetType()) {
+        oprot.writeString(struct.type);
+      }
+      if (struct.isSetData()) {
+        oprot.writeString(struct.data);
+      }
+      if (struct.isSetAppId()) {
+        oprot.writeString(struct.appId);
+      }
+    }
+
+    @Override
+    public void read(org.apache.thrift.protocol.TProtocol prot, OutputUpdateEvent struct) throws org.apache.thrift.TException {
+      TTupleProtocol iprot = (TTupleProtocol) prot;
+      BitSet incoming = iprot.readBitSet(6);
+      if (incoming.get(0)) {
+        struct.noteId = iprot.readString();
+        struct.setNoteIdIsSet(true);
+      }
+      if (incoming.get(1)) {
+        struct.paragraphId = iprot.readString();
+        struct.setParagraphIdIsSet(true);
+      }
+      if (incoming.get(2)) {
+        struct.index = iprot.readI32();
+        struct.setIndexIsSet(true);
+      }
+      if (incoming.get(3)) {
+        struct.type = iprot.readString();
+        struct.setTypeIsSet(true);
+      }
+      if (incoming.get(4)) {
+        struct.data = iprot.readString();
+        struct.setDataIsSet(true);
+      }
+      if (incoming.get(5)) {
+        struct.appId = iprot.readString();
+        struct.setAppIdIsSet(true);
+      }
+    }
+  }
+
+}
+

http://git-wip-us.apache.org/repos/asf/zeppelin/blob/7af86168/zeppelin-interpreter/src/main/java/org/apache/zeppelin/interpreter/thrift/RegisterInfo.java
----------------------------------------------------------------------
diff --git a/zeppelin-interpreter/src/main/java/org/apache/zeppelin/interpreter/thrift/RegisterInfo.java b/zeppelin-interpreter/src/main/java/org/apache/zeppelin/interpreter/thrift/RegisterInfo.java
new file mode 100644
index 0000000..d06c291
--- /dev/null
+++ b/zeppelin-interpreter/src/main/java/org/apache/zeppelin/interpreter/thrift/RegisterInfo.java
@@ -0,0 +1,623 @@
+/**
+ * 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.zeppelin.interpreter.thrift;
+
+import org.apache.thrift.scheme.IScheme;
+import org.apache.thrift.scheme.SchemeFactory;
+import org.apache.thrift.scheme.StandardScheme;
+
+import org.apache.thrift.scheme.TupleScheme;
+import org.apache.thrift.protocol.TTupleProtocol;
+import org.apache.thrift.protocol.TProtocolException;
+import org.apache.thrift.EncodingUtils;
+import org.apache.thrift.TException;
+import org.apache.thrift.async.AsyncMethodCallback;
+import org.apache.thrift.server.AbstractNonblockingServer.*;
+import java.util.List;
+import java.util.ArrayList;
+import java.util.Map;
+import java.util.HashMap;
+import java.util.EnumMap;
+import java.util.Set;
+import java.util.HashSet;
+import java.util.EnumSet;
+import java.util.Collections;
+import java.util.BitSet;
+import java.nio.ByteBuffer;
+import java.util.Arrays;
+import 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 = "2018-5-29")
+public class RegisterInfo implements org.apache.thrift.TBase<RegisterInfo, RegisterInfo._Fields>, java.io.Serializable, Cloneable, Comparable<RegisterInfo> {
+  private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("RegisterInfo");
+
+  private static final org.apache.thrift.protocol.TField HOST_FIELD_DESC = new org.apache.thrift.protocol.TField("host", org.apache.thrift.protocol.TType.STRING, (short)1);
+  private static final org.apache.thrift.protocol.TField PORT_FIELD_DESC = new org.apache.thrift.protocol.TField("port", org.apache.thrift.protocol.TType.I32, (short)2);
+  private static final org.apache.thrift.protocol.TField INTERPRETER_GROUP_ID_FIELD_DESC = new org.apache.thrift.protocol.TField("interpreterGroupId", 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 RegisterInfoStandardSchemeFactory());
+    schemes.put(TupleScheme.class, new RegisterInfoTupleSchemeFactory());
+  }
+
+  public String host; // required
+  public int port; // required
+  public String interpreterGroupId; // 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 {
+    HOST((short)1, "host"),
+    PORT((short)2, "port"),
+    INTERPRETER_GROUP_ID((short)3, "interpreterGroupId");
+
+    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: // HOST
+          return HOST;
+        case 2: // PORT
+          return PORT;
+        case 3: // INTERPRETER_GROUP_ID
+          return INTERPRETER_GROUP_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
+  private static final int __PORT_ISSET_ID = 0;
+  private byte __isset_bitfield = 0;
+  public static final Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> metaDataMap;
+  static {
+    Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> tmpMap = new EnumMap<_Fields, org.apache.thrift.meta_data.FieldMetaData>(_Fields.class);
+    tmpMap.put(_Fields.HOST, new org.apache.thrift.meta_data.FieldMetaData("host", org.apache.thrift.TFieldRequirementType.DEFAULT, 
+        new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.STRING)));
+    tmpMap.put(_Fields.PORT, new org.apache.thrift.meta_data.FieldMetaData("port", org.apache.thrift.TFieldRequirementType.DEFAULT, 
+        new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.I32)));
+    tmpMap.put(_Fields.INTERPRETER_GROUP_ID, new org.apache.thrift.meta_data.FieldMetaData("interpreterGroupId", org.apache.thrift.TFieldRequirementType.DEFAULT, 
+        new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.STRING)));
+    metaDataMap = Collections.unmodifiableMap(tmpMap);
+    org.apache.thrift.meta_data.FieldMetaData.addStructMetaDataMap(RegisterInfo.class, metaDataMap);
+  }
+
+  public RegisterInfo() {
+  }
+
+  public RegisterInfo(
+    String host,
+    int port,
+    String interpreterGroupId)
+  {
+    this();
+    this.host = host;
+    this.port = port;
+    setPortIsSet(true);
+    this.interpreterGroupId = interpreterGroupId;
+  }
+
+  /**
+   * Performs a deep copy on <i>other</i>.
+   */
+  public RegisterInfo(RegisterInfo other) {
+    __isset_bitfield = other.__isset_bitfield;
+    if (other.isSetHost()) {
+      this.host = other.host;
+    }
+    this.port = other.port;
+    if (other.isSetInterpreterGroupId()) {
+      this.interpreterGroupId = other.interpreterGroupId;
+    }
+  }
+
+  public RegisterInfo deepCopy() {
+    return new RegisterInfo(this);
+  }
+
+  @Override
+  public void clear() {
+    this.host = null;
+    setPortIsSet(false);
+    this.port = 0;
+    this.interpreterGroupId = null;
+  }
+
+  public String getHost() {
+    return this.host;
+  }
+
+  public RegisterInfo setHost(String host) {
+    this.host = host;
+    return this;
+  }
+
+  public void unsetHost() {
+    this.host = null;
+  }
+
+  /** Returns true if field host is set (has been assigned a value) and false otherwise */
+  public boolean isSetHost() {
+    return this.host != null;
+  }
+
+  public void setHostIsSet(boolean value) {
+    if (!value) {
+      this.host = null;
+    }
+  }
+
+  public int getPort() {
+    return this.port;
+  }
+
+  public RegisterInfo setPort(int port) {
+    this.port = port;
+    setPortIsSet(true);
+    return this;
+  }
+
+  public void unsetPort() {
+    __isset_bitfield = EncodingUtils.clearBit(__isset_bitfield, __PORT_ISSET_ID);
+  }
+
+  /** Returns true if field port is set (has been assigned a value) and false otherwise */
+  public boolean isSetPort() {
+    return EncodingUtils.testBit(__isset_bitfield, __PORT_ISSET_ID);
+  }
+
+  public void setPortIsSet(boolean value) {
+    __isset_bitfield = EncodingUtils.setBit(__isset_bitfield, __PORT_ISSET_ID, value);
+  }
+
+  public String getInterpreterGroupId() {
+    return this.interpreterGroupId;
+  }
+
+  public RegisterInfo setInterpreterGroupId(String interpreterGroupId) {
+    this.interpreterGroupId = interpreterGroupId;
+    return this;
+  }
+
+  public void unsetInterpreterGroupId() {
+    this.interpreterGroupId = null;
+  }
+
+  /** Returns true if field interpreterGroupId is set (has been assigned a value) and false otherwise */
+  public boolean isSetInterpreterGroupId() {
+    return this.interpreterGroupId != null;
+  }
+
+  public void setInterpreterGroupIdIsSet(boolean value) {
+    if (!value) {
+      this.interpreterGroupId = null;
+    }
+  }
+
+  public void setFieldValue(_Fields field, Object value) {
+    switch (field) {
+    case HOST:
+      if (value == null) {
+        unsetHost();
+      } else {
+        setHost((String)value);
+      }
+      break;
+
+    case PORT:
+      if (value == null) {
+        unsetPort();
+      } else {
+        setPort((Integer)value);
+      }
+      break;
+
+    case INTERPRETER_GROUP_ID:
+      if (value == null) {
+        unsetInterpreterGroupId();
+      } else {
+        setInterpreterGroupId((String)value);
+      }
+      break;
+
+    }
+  }
+
+  public Object getFieldValue(_Fields field) {
+    switch (field) {
+    case HOST:
+      return getHost();
+
+    case PORT:
+      return Integer.valueOf(getPort());
+
+    case INTERPRETER_GROUP_ID:
+      return getInterpreterGroupId();
+
+    }
+    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 HOST:
+      return isSetHost();
+    case PORT:
+      return isSetPort();
+    case INTERPRETER_GROUP_ID:
+      return isSetInterpreterGroupId();
+    }
+    throw new IllegalStateException();
+  }
+
+  @Override
+  public boolean equals(Object that) {
+    if (that == null)
+      return false;
+    if (that instanceof RegisterInfo)
+      return this.equals((RegisterInfo)that);
+    return false;
+  }
+
+  public boolean equals(RegisterInfo that) {
+    if (that == null)
+      return false;
+
+    boolean this_present_host = true && this.isSetHost();
+    boolean that_present_host = true && that.isSetHost();
+    if (this_present_host || that_present_host) {
+      if (!(this_present_host && that_present_host))
+        return false;
+      if (!this.host.equals(that.host))
+        return false;
+    }
+
+    boolean this_present_port = true;
+    boolean that_present_port = true;
+    if (this_present_port || that_present_port) {
+      if (!(this_present_port && that_present_port))
+        return false;
+      if (this.port != that.port)
+        return false;
+    }
+
+    boolean this_present_interpreterGroupId = true && this.isSetInterpreterGroupId();
+    boolean that_present_interpreterGroupId = true && that.isSetInterpreterGroupId();
+    if (this_present_interpreterGroupId || that_present_interpreterGroupId) {
+      if (!(this_present_interpreterGroupId && that_present_interpreterGroupId))
+        return false;
+      if (!this.interpreterGroupId.equals(that.interpreterGroupId))
+        return false;
+    }
+
+    return true;
+  }
+
+  @Override
+  public int hashCode() {
+    List<Object> list = new ArrayList<Object>();
+
+    boolean present_host = true && (isSetHost());
+    list.add(present_host);
+    if (present_host)
+      list.add(host);
+
+    boolean present_port = true;
+    list.add(present_port);
+    if (present_port)
+      list.add(port);
+
+    boolean present_interpreterGroupId = true && (isSetInterpreterGroupId());
+    list.add(present_interpreterGroupId);
+    if (present_interpreterGroupId)
+      list.add(interpreterGroupId);
+
+    return list.hashCode();
+  }
+
+  @Override
+  public int compareTo(RegisterInfo other) {
+    if (!getClass().equals(other.getClass())) {
+      return getClass().getName().compareTo(other.getClass().getName());
+    }
+
+    int lastComparison = 0;
+
+    lastComparison = Boolean.valueOf(isSetHost()).compareTo(other.isSetHost());
+    if (lastComparison != 0) {
+      return lastComparison;
+    }
+    if (isSetHost()) {
+      lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.host, other.host);
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+    }
+    lastComparison = Boolean.valueOf(isSetPort()).compareTo(other.isSetPort());
+    if (lastComparison != 0) {
+      return lastComparison;
+    }
+    if (isSetPort()) {
+      lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.port, other.port);
+      if (lastComparison != 0) {
+        return lastComparison;
+      }
+    }
+    lastComparison = Boolean.valueOf(isSetInterpreterGroupId()).compareTo(other.isSetInterpreterGroupId());
+    if (lastComparison != 0) {
+      return lastComparison;
+    }
+    if (isSetInterpreterGroupId()) {
+      lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.interpreterGroupId, other.interpreterGroupId);
+      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("RegisterInfo(");
+    boolean first = true;
+
+    sb.append("host:");
+    if (this.host == null) {
+      sb.append("null");
+    } else {
+      sb.append(this.host);
+    }
+    first = false;
+    if (!first) sb.append(", ");
+    sb.append("port:");
+    sb.append(this.port);
+    first = false;
+    if (!first) sb.append(", ");
+    sb.append("interpreterGroupId:");
+    if (this.interpreterGroupId == null) {
+      sb.append("null");
+    } else {
+      sb.append(this.interpreterGroupId);
+    }
+    first = false;
+    sb.append(")");
+    return sb.toString();
+  }
+
+  public void validate() throws org.apache.thrift.TException {
+    // check for required fields
+    // check for sub-struct validity
+  }
+
+  private void writeObject(java.io.ObjectOutputStream out) throws java.io.IOException {
+    try {
+      write(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(out)));
+    } catch (org.apache.thrift.TException te) {
+      throw new java.io.IOException(te);
+    }
+  }
+
+  private void readObject(java.io.ObjectInputStream in) throws java.io.IOException, ClassNotFoundException {
+    try {
+      // it doesn't seem like you should have to do this, but java serialization is wacky, and doesn't call the default constructor.
+      __isset_bitfield = 0;
+      read(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(in)));
+    } catch (org.apache.thrift.TException te) {
+      throw new java.io.IOException(te);
+    }
+  }
+
+  private static class RegisterInfoStandardSchemeFactory implements SchemeFactory {
+    public RegisterInfoStandardScheme getScheme() {
+      return new RegisterInfoStandardScheme();
+    }
+  }
+
+  private static class RegisterInfoStandardScheme extends StandardScheme<RegisterInfo> {
+
+    public void read(org.apache.thrift.protocol.TProtocol iprot, RegisterInfo 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: // HOST
+            if (schemeField.type == org.apache.thrift.protocol.TType.STRING) {
+              struct.host = iprot.readString();
+              struct.setHostIsSet(true);
+            } else { 
+              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+            }
+            break;
+          case 2: // PORT
+            if (schemeField.type == org.apache.thrift.protocol.TType.I32) {
+              struct.port = iprot.readI32();
+              struct.setPortIsSet(true);
+            } else { 
+              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
+            }
+            break;
+          case 3: // INTERPRETER_GROUP_ID
+            if (schemeField.type == org.apache.thrift.protocol.TType.STRING) {
+              struct.interpreterGroupId = iprot.readString();
+              struct.setInterpreterGroupIdIsSet(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, RegisterInfo struct) throws org.apache.thrift.TException {
+      struct.validate();
+
+      oprot.writeStructBegin(STRUCT_DESC);
+      if (struct.host != null) {
+        oprot.writeFieldBegin(HOST_FIELD_DESC);
+        oprot.writeString(struct.host);
+        oprot.writeFieldEnd();
+      }
+      oprot.writeFieldBegin(PORT_FIELD_DESC);
+      oprot.writeI32(struct.port);
+      oprot.writeFieldEnd();
+      if (struct.interpreterGroupId != null) {
+        oprot.writeFieldBegin(INTERPRETER_GROUP_ID_FIELD_DESC);
+        oprot.writeString(struct.interpreterGroupId);
+        oprot.writeFieldEnd();
+      }
+      oprot.writeFieldStop();
+      oprot.writeStructEnd();
+    }
+
+  }
+
+  private static class RegisterInfoTupleSchemeFactory implements SchemeFactory {
+    public RegisterInfoTupleScheme getScheme() {
+      return new RegisterInfoTupleScheme();
+    }
+  }
+
+  private static class RegisterInfoTupleScheme extends TupleScheme<RegisterInfo> {
+
+    @Override
+    public void write(org.apache.thrift.protocol.TProtocol prot, RegisterInfo struct) throws org.apache.thrift.TException {
+      TTupleProtocol oprot = (TTupleProtocol) prot;
+      BitSet optionals = new BitSet();
+      if (struct.isSetHost()) {
+        optionals.set(0);
+      }
+      if (struct.isSetPort()) {
+        optionals.set(1);
+      }
+      if (struct.isSetInterpreterGroupId()) {
+        optionals.set(2);
+      }
+      oprot.writeBitSet(optionals, 3);
+      if (struct.isSetHost()) {
+        oprot.writeString(struct.host);
+      }
+      if (struct.isSetPort()) {
+        oprot.writeI32(struct.port);
+      }
+      if (struct.isSetInterpreterGroupId()) {
+        oprot.writeString(struct.interpreterGroupId);
+      }
+    }
+
+    @Override
+    public void read(org.apache.thrift.protocol.TProtocol prot, RegisterInfo struct) throws org.apache.thrift.TException {
+      TTupleProtocol iprot = (TTupleProtocol) prot;
+      BitSet incoming = iprot.readBitSet(3);
+      if (incoming.get(0)) {
+        struct.host = iprot.readString();
+        struct.setHostIsSet(true);
+      }
+      if (incoming.get(1)) {
+        struct.port = iprot.readI32();
+        struct.setPortIsSet(true);
+      }
+      if (incoming.get(2)) {
+        struct.interpreterGroupId = iprot.readString();
+        struct.setInterpreterGroupIdIsSet(true);
+      }
+    }
+  }
+
+}
+

http://git-wip-us.apache.org/repos/asf/zeppelin/blob/7af86168/zeppelin-interpreter/src/main/java/org/apache/zeppelin/interpreter/thrift/RemoteApplicationResult.java
----------------------------------------------------------------------
diff --git a/zeppelin-interpreter/src/main/java/org/apache/zeppelin/interpreter/thrift/RemoteApplicationResult.java b/zeppelin-interpreter/src/main/java/org/apache/zeppelin/interpreter/thrift/RemoteApplicationResult.java
index 9996cf1..8738b10 100644
--- a/zeppelin-interpreter/src/main/java/org/apache/zeppelin/interpreter/thrift/RemoteApplicationResult.java
+++ b/zeppelin-interpreter/src/main/java/org/apache/zeppelin/interpreter/thrift/RemoteApplicationResult.java
@@ -16,7 +16,7 @@
  * limitations under the License.
  */
 /**
- * Autogenerated by Thrift Compiler (0.9.3)
+ * Autogenerated by Thrift Compiler (0.9.2)
  *
  * DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING
  *  @generated
@@ -51,7 +51,7 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 @SuppressWarnings({"cast", "rawtypes", "serial", "unchecked"})
-@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2018-05-22")
+@Generated(value = "Autogenerated by Thrift Compiler (0.9.2)", date = "2018-5-29")
 public class RemoteApplicationResult implements org.apache.thrift.TBase<RemoteApplicationResult, RemoteApplicationResult._Fields>, java.io.Serializable, Cloneable, Comparable<RemoteApplicationResult> {
   private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("RemoteApplicationResult");
 
@@ -248,7 +248,7 @@ public class RemoteApplicationResult implements org.apache.thrift.TBase<RemoteAp
   public Object getFieldValue(_Fields field) {
     switch (field) {
     case SUCCESS:
-      return isSuccess();
+      return Boolean.valueOf(isSuccess());
 
     case MSG:
       return getMsg();

http://git-wip-us.apache.org/repos/asf/zeppelin/blob/7af86168/zeppelin-interpreter/src/main/java/org/apache/zeppelin/interpreter/thrift/RemoteInterpreterCallbackService.java
----------------------------------------------------------------------
diff --git a/zeppelin-interpreter/src/main/java/org/apache/zeppelin/interpreter/thrift/RemoteInterpreterCallbackService.java b/zeppelin-interpreter/src/main/java/org/apache/zeppelin/interpreter/thrift/RemoteInterpreterCallbackService.java
deleted file mode 100644
index 6a9d429..0000000
--- a/zeppelin-interpreter/src/main/java/org/apache/zeppelin/interpreter/thrift/RemoteInterpreterCallbackService.java
+++ /dev/null
@@ -1,879 +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 (0.9.3)
- *
- * DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING
- *  @generated
- */
-package org.apache.zeppelin.interpreter.thrift;
-
-import org.apache.thrift.scheme.IScheme;
-import org.apache.thrift.scheme.SchemeFactory;
-import org.apache.thrift.scheme.StandardScheme;
-
-import org.apache.thrift.scheme.TupleScheme;
-import org.apache.thrift.protocol.TTupleProtocol;
-import org.apache.thrift.protocol.TProtocolException;
-import org.apache.thrift.EncodingUtils;
-import org.apache.thrift.TException;
-import org.apache.thrift.async.AsyncMethodCallback;
-import org.apache.thrift.server.AbstractNonblockingServer.*;
-import java.util.List;
-import java.util.ArrayList;
-import java.util.Map;
-import java.util.HashMap;
-import java.util.EnumMap;
-import java.util.Set;
-import java.util.HashSet;
-import java.util.EnumSet;
-import java.util.Collections;
-import java.util.BitSet;
-import java.nio.ByteBuffer;
-import java.util.Arrays;
-import javax.annotation.Generated;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-@SuppressWarnings({"cast", "rawtypes", "serial", "unchecked"})
-@Generated(value = "Autogenerated by Thrift Compiler (0.9.3)", date = "2018-05-22")
-public class RemoteInterpreterCallbackService {
-
-  public interface Iface {
-
-    public void callback(CallbackInfo callbackInfo) throws org.apache.thrift.TException;
-
-  }
-
-  public interface AsyncIface {
-
-    public void callback(CallbackInfo callbackInfo, org.apache.thrift.async.AsyncMethodCallback resultHandler) throws org.apache.thrift.TException;
-
-  }
-
-  public static class Client extends org.apache.thrift.TServiceClient implements Iface {
-    public static class Factory implements org.apache.thrift.TServiceClientFactory<Client> {
-      public Factory() {}
-      public Client getClient(org.apache.thrift.protocol.TProtocol prot) {
-        return new Client(prot);
-      }
-      public Client getClient(org.apache.thrift.protocol.TProtocol iprot, org.apache.thrift.protocol.TProtocol oprot) {
-        return new Client(iprot, oprot);
-      }
-    }
-
-    public Client(org.apache.thrift.protocol.TProtocol prot)
-    {
-      super(prot, prot);
-    }
-
-    public Client(org.apache.thrift.protocol.TProtocol iprot, org.apache.thrift.protocol.TProtocol oprot) {
-      super(iprot, oprot);
-    }
-
-    public void callback(CallbackInfo callbackInfo) throws org.apache.thrift.TException
-    {
-      send_callback(callbackInfo);
-      recv_callback();
-    }
-
-    public void send_callback(CallbackInfo callbackInfo) throws org.apache.thrift.TException
-    {
-      callback_args args = new callback_args();
-      args.setCallbackInfo(callbackInfo);
-      sendBase("callback", args);
-    }
-
-    public void recv_callback() throws org.apache.thrift.TException
-    {
-      callback_result result = new callback_result();
-      receiveBase(result, "callback");
-      return;
-    }
-
-  }
-  public static class AsyncClient extends org.apache.thrift.async.TAsyncClient implements AsyncIface {
-    public static class Factory implements org.apache.thrift.async.TAsyncClientFactory<AsyncClient> {
-      private org.apache.thrift.async.TAsyncClientManager clientManager;
-      private org.apache.thrift.protocol.TProtocolFactory protocolFactory;
-      public Factory(org.apache.thrift.async.TAsyncClientManager clientManager, org.apache.thrift.protocol.TProtocolFactory protocolFactory) {
-        this.clientManager = clientManager;
-        this.protocolFactory = protocolFactory;
-      }
-      public AsyncClient getAsyncClient(org.apache.thrift.transport.TNonblockingTransport transport) {
-        return new AsyncClient(protocolFactory, clientManager, transport);
-      }
-    }
-
-    public AsyncClient(org.apache.thrift.protocol.TProtocolFactory protocolFactory, org.apache.thrift.async.TAsyncClientManager clientManager, org.apache.thrift.transport.TNonblockingTransport transport) {
-      super(protocolFactory, clientManager, transport);
-    }
-
-    public void callback(CallbackInfo callbackInfo, org.apache.thrift.async.AsyncMethodCallback resultHandler) throws org.apache.thrift.TException {
-      checkReady();
-      callback_call method_call = new callback_call(callbackInfo, resultHandler, this, ___protocolFactory, ___transport);
-      this.___currentMethod = method_call;
-      ___manager.call(method_call);
-    }
-
-    public static class callback_call extends org.apache.thrift.async.TAsyncMethodCall {
-      private CallbackInfo callbackInfo;
-      public callback_call(CallbackInfo callbackInfo, org.apache.thrift.async.AsyncMethodCallback resultHandler, org.apache.thrift.async.TAsyncClient client, org.apache.thrift.protocol.TProtocolFactory protocolFactory, org.apache.thrift.transport.TNonblockingTransport transport) throws org.apache.thrift.TException {
-        super(client, protocolFactory, transport, resultHandler, false);
-        this.callbackInfo = callbackInfo;
-      }
-
-      public void write_args(org.apache.thrift.protocol.TProtocol prot) throws org.apache.thrift.TException {
-        prot.writeMessageBegin(new org.apache.thrift.protocol.TMessage("callback", org.apache.thrift.protocol.TMessageType.CALL, 0));
-        callback_args args = new callback_args();
-        args.setCallbackInfo(callbackInfo);
-        args.write(prot);
-        prot.writeMessageEnd();
-      }
-
-      public void getResult() throws org.apache.thrift.TException {
-        if (getState() != org.apache.thrift.async.TAsyncMethodCall.State.RESPONSE_READ) {
-          throw new IllegalStateException("Method call not finished!");
-        }
-        org.apache.thrift.transport.TMemoryInputTransport memoryTransport = new org.apache.thrift.transport.TMemoryInputTransport(getFrameBuffer().array());
-        org.apache.thrift.protocol.TProtocol prot = client.getProtocolFactory().getProtocol(memoryTransport);
-        (new Client(prot)).recv_callback();
-      }
-    }
-
-  }
-
-  public static class Processor<I extends Iface> extends org.apache.thrift.TBaseProcessor<I> implements org.apache.thrift.TProcessor {
-    private static final Logger LOGGER = LoggerFactory.getLogger(Processor.class.getName());
-    public Processor(I iface) {
-      super(iface, getProcessMap(new HashMap<String, org.apache.thrift.ProcessFunction<I, ? extends org.apache.thrift.TBase>>()));
-    }
-
-    protected Processor(I iface, Map<String,  org.apache.thrift.ProcessFunction<I, ? extends  org.apache.thrift.TBase>> processMap) {
-      super(iface, getProcessMap(processMap));
-    }
-
-    private static <I extends Iface> Map<String,  org.apache.thrift.ProcessFunction<I, ? extends  org.apache.thrift.TBase>> getProcessMap(Map<String,  org.apache.thrift.ProcessFunction<I, ? extends  org.apache.thrift.TBase>> processMap) {
-      processMap.put("callback", new callback());
-      return processMap;
-    }
-
-    public static class callback<I extends Iface> extends org.apache.thrift.ProcessFunction<I, callback_args> {
-      public callback() {
-        super("callback");
-      }
-
-      public callback_args getEmptyArgsInstance() {
-        return new callback_args();
-      }
-
-      protected boolean isOneway() {
-        return false;
-      }
-
-      public callback_result getResult(I iface, callback_args args) throws org.apache.thrift.TException {
-        callback_result result = new callback_result();
-        iface.callback(args.callbackInfo);
-        return result;
-      }
-    }
-
-  }
-
-  public static class AsyncProcessor<I extends AsyncIface> extends org.apache.thrift.TBaseAsyncProcessor<I> {
-    private static final Logger LOGGER = LoggerFactory.getLogger(AsyncProcessor.class.getName());
-    public AsyncProcessor(I iface) {
-      super(iface, getProcessMap(new HashMap<String, org.apache.thrift.AsyncProcessFunction<I, ? extends org.apache.thrift.TBase, ?>>()));
-    }
-
-    protected AsyncProcessor(I iface, Map<String,  org.apache.thrift.AsyncProcessFunction<I, ? extends  org.apache.thrift.TBase, ?>> processMap) {
-      super(iface, getProcessMap(processMap));
-    }
-
-    private static <I extends AsyncIface> Map<String,  org.apache.thrift.AsyncProcessFunction<I, ? extends  org.apache.thrift.TBase,?>> getProcessMap(Map<String,  org.apache.thrift.AsyncProcessFunction<I, ? extends  org.apache.thrift.TBase, ?>> processMap) {
-      processMap.put("callback", new callback());
-      return processMap;
-    }
-
-    public static class callback<I extends AsyncIface> extends org.apache.thrift.AsyncProcessFunction<I, callback_args, Void> {
-      public callback() {
-        super("callback");
-      }
-
-      public callback_args getEmptyArgsInstance() {
-        return new callback_args();
-      }
-
-      public AsyncMethodCallback<Void> getResultHandler(final AsyncFrameBuffer fb, final int seqid) {
-        final org.apache.thrift.AsyncProcessFunction fcall = this;
-        return new AsyncMethodCallback<Void>() { 
-          public void onComplete(Void o) {
-            callback_result result = new callback_result();
-            try {
-              fcall.sendResponse(fb,result, org.apache.thrift.protocol.TMessageType.REPLY,seqid);
-              return;
-            } catch (Exception e) {
-              LOGGER.error("Exception writing to internal frame buffer", e);
-            }
-            fb.close();
-          }
-          public void onError(Exception e) {
-            byte msgType = org.apache.thrift.protocol.TMessageType.REPLY;
-            org.apache.thrift.TBase msg;
-            callback_result result = new callback_result();
-            {
-              msgType = org.apache.thrift.protocol.TMessageType.EXCEPTION;
-              msg = (org.apache.thrift.TBase)new org.apache.thrift.TApplicationException(org.apache.thrift.TApplicationException.INTERNAL_ERROR, e.getMessage());
-            }
-            try {
-              fcall.sendResponse(fb,msg,msgType,seqid);
-              return;
-            } catch (Exception ex) {
-              LOGGER.error("Exception writing to internal frame buffer", ex);
-            }
-            fb.close();
-          }
-        };
-      }
-
-      protected boolean isOneway() {
-        return false;
-      }
-
-      public void start(I iface, callback_args args, org.apache.thrift.async.AsyncMethodCallback<Void> resultHandler) throws TException {
-        iface.callback(args.callbackInfo,resultHandler);
-      }
-    }
-
-  }
-
-  public static class callback_args implements org.apache.thrift.TBase<callback_args, callback_args._Fields>, java.io.Serializable, Cloneable, Comparable<callback_args>   {
-    private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("callback_args");
-
-    private static final org.apache.thrift.protocol.TField CALLBACK_INFO_FIELD_DESC = new org.apache.thrift.protocol.TField("callbackInfo", org.apache.thrift.protocol.TType.STRUCT, (short)1);
-
-    private static final Map<Class<? extends IScheme>, SchemeFactory> schemes = new HashMap<Class<? extends IScheme>, SchemeFactory>();
-    static {
-      schemes.put(StandardScheme.class, new callback_argsStandardSchemeFactory());
-      schemes.put(TupleScheme.class, new callback_argsTupleSchemeFactory());
-    }
-
-    public CallbackInfo callbackInfo; // 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 {
-      CALLBACK_INFO((short)1, "callbackInfo");
-
-      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: // CALLBACK_INFO
-            return CALLBACK_INFO;
-          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.CALLBACK_INFO, new org.apache.thrift.meta_data.FieldMetaData("callbackInfo", org.apache.thrift.TFieldRequirementType.DEFAULT, 
-          new org.apache.thrift.meta_data.StructMetaData(org.apache.thrift.protocol.TType.STRUCT, CallbackInfo.class)));
-      metaDataMap = Collections.unmodifiableMap(tmpMap);
-      org.apache.thrift.meta_data.FieldMetaData.addStructMetaDataMap(callback_args.class, metaDataMap);
-    }
-
-    public callback_args() {
-    }
-
-    public callback_args(
-      CallbackInfo callbackInfo)
-    {
-      this();
-      this.callbackInfo = callbackInfo;
-    }
-
-    /**
-     * Performs a deep copy on <i>other</i>.
-     */
-    public callback_args(callback_args other) {
-      if (other.isSetCallbackInfo()) {
-        this.callbackInfo = new CallbackInfo(other.callbackInfo);
-      }
-    }
-
-    public callback_args deepCopy() {
-      return new callback_args(this);
-    }
-
-    @Override
-    public void clear() {
-      this.callbackInfo = null;
-    }
-
-    public CallbackInfo getCallbackInfo() {
-      return this.callbackInfo;
-    }
-
-    public callback_args setCallbackInfo(CallbackInfo callbackInfo) {
-      this.callbackInfo = callbackInfo;
-      return this;
-    }
-
-    public void unsetCallbackInfo() {
-      this.callbackInfo = null;
-    }
-
-    /** Returns true if field callbackInfo is set (has been assigned a value) and false otherwise */
-    public boolean isSetCallbackInfo() {
-      return this.callbackInfo != null;
-    }
-
-    public void setCallbackInfoIsSet(boolean value) {
-      if (!value) {
-        this.callbackInfo = null;
-      }
-    }
-
-    public void setFieldValue(_Fields field, Object value) {
-      switch (field) {
-      case CALLBACK_INFO:
-        if (value == null) {
-          unsetCallbackInfo();
-        } else {
-          setCallbackInfo((CallbackInfo)value);
-        }
-        break;
-
-      }
-    }
-
-    public Object getFieldValue(_Fields field) {
-      switch (field) {
-      case CALLBACK_INFO:
-        return getCallbackInfo();
-
-      }
-      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 CALLBACK_INFO:
-        return isSetCallbackInfo();
-      }
-      throw new IllegalStateException();
-    }
-
-    @Override
-    public boolean equals(Object that) {
-      if (that == null)
-        return false;
-      if (that instanceof callback_args)
-        return this.equals((callback_args)that);
-      return false;
-    }
-
-    public boolean equals(callback_args that) {
-      if (that == null)
-        return false;
-
-      boolean this_present_callbackInfo = true && this.isSetCallbackInfo();
-      boolean that_present_callbackInfo = true && that.isSetCallbackInfo();
-      if (this_present_callbackInfo || that_present_callbackInfo) {
-        if (!(this_present_callbackInfo && that_present_callbackInfo))
-          return false;
-        if (!this.callbackInfo.equals(that.callbackInfo))
-          return false;
-      }
-
-      return true;
-    }
-
-    @Override
-    public int hashCode() {
-      List<Object> list = new ArrayList<Object>();
-
-      boolean present_callbackInfo = true && (isSetCallbackInfo());
-      list.add(present_callbackInfo);
-      if (present_callbackInfo)
-        list.add(callbackInfo);
-
-      return list.hashCode();
-    }
-
-    @Override
-    public int compareTo(callback_args other) {
-      if (!getClass().equals(other.getClass())) {
-        return getClass().getName().compareTo(other.getClass().getName());
-      }
-
-      int lastComparison = 0;
-
-      lastComparison = Boolean.valueOf(isSetCallbackInfo()).compareTo(other.isSetCallbackInfo());
-      if (lastComparison != 0) {
-        return lastComparison;
-      }
-      if (isSetCallbackInfo()) {
-        lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.callbackInfo, other.callbackInfo);
-        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("callback_args(");
-      boolean first = true;
-
-      sb.append("callbackInfo:");
-      if (this.callbackInfo == null) {
-        sb.append("null");
-      } else {
-        sb.append(this.callbackInfo);
-      }
-      first = false;
-      sb.append(")");
-      return sb.toString();
-    }
-
-    public void validate() throws org.apache.thrift.TException {
-      // check for required fields
-      // check for sub-struct validity
-      if (callbackInfo != null) {
-        callbackInfo.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 callback_argsStandardSchemeFactory implements SchemeFactory {
-      public callback_argsStandardScheme getScheme() {
-        return new callback_argsStandardScheme();
-      }
-    }
-
-    private static class callback_argsStandardScheme extends StandardScheme<callback_args> {
-
-      public void read(org.apache.thrift.protocol.TProtocol iprot, callback_args struct) throws org.apache.thrift.TException {
-        org.apache.thrift.protocol.TField schemeField;
-        iprot.readStructBegin();
-        while (true)
-        {
-          schemeField = iprot.readFieldBegin();
-          if (schemeField.type == org.apache.thrift.protocol.TType.STOP) { 
-            break;
-          }
-          switch (schemeField.id) {
-            case 1: // CALLBACK_INFO
-              if (schemeField.type == org.apache.thrift.protocol.TType.STRUCT) {
-                struct.callbackInfo = new CallbackInfo();
-                struct.callbackInfo.read(iprot);
-                struct.setCallbackInfoIsSet(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, callback_args struct) throws org.apache.thrift.TException {
-        struct.validate();
-
-        oprot.writeStructBegin(STRUCT_DESC);
-        if (struct.callbackInfo != null) {
-          oprot.writeFieldBegin(CALLBACK_INFO_FIELD_DESC);
-          struct.callbackInfo.write(oprot);
-          oprot.writeFieldEnd();
-        }
-        oprot.writeFieldStop();
-        oprot.writeStructEnd();
-      }
-
-    }
-
-    private static class callback_argsTupleSchemeFactory implements SchemeFactory {
-      public callback_argsTupleScheme getScheme() {
-        return new callback_argsTupleScheme();
-      }
-    }
-
-    private static class callback_argsTupleScheme extends TupleScheme<callback_args> {
-
-      @Override
-      public void write(org.apache.thrift.protocol.TProtocol prot, callback_args struct) throws org.apache.thrift.TException {
-        TTupleProtocol oprot = (TTupleProtocol) prot;
-        BitSet optionals = new BitSet();
-        if (struct.isSetCallbackInfo()) {
-          optionals.set(0);
-        }
-        oprot.writeBitSet(optionals, 1);
-        if (struct.isSetCallbackInfo()) {
-          struct.callbackInfo.write(oprot);
-        }
-      }
-
-      @Override
-      public void read(org.apache.thrift.protocol.TProtocol prot, callback_args struct) throws org.apache.thrift.TException {
-        TTupleProtocol iprot = (TTupleProtocol) prot;
-        BitSet incoming = iprot.readBitSet(1);
-        if (incoming.get(0)) {
-          struct.callbackInfo = new CallbackInfo();
-          struct.callbackInfo.read(iprot);
-          struct.setCallbackInfoIsSet(true);
-        }
-      }
-    }
-
-  }
-
-  public static class callback_result implements org.apache.thrift.TBase<callback_result, callback_result._Fields>, java.io.Serializable, Cloneable, Comparable<callback_result>   {
-    private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("callback_result");
-
-
-    private static final Map<Class<? extends IScheme>, SchemeFactory> schemes = new HashMap<Class<? extends IScheme>, SchemeFactory>();
-    static {
-      schemes.put(StandardScheme.class, new callback_resultStandardSchemeFactory());
-      schemes.put(TupleScheme.class, new callback_resultTupleSchemeFactory());
-    }
-
-
-    /** The set of fields this struct contains, along with convenience methods for finding and manipulating them. */
-    public enum _Fields implements org.apache.thrift.TFieldIdEnum {
-;
-
-      private static final Map<String, _Fields> byName = new HashMap<String, _Fields>();
-
-      static {
-        for (_Fields field : EnumSet.allOf(_Fields.class)) {
-          byName.put(field.getFieldName(), field);
-        }
-      }
-
-      /**
-       * Find the _Fields constant that matches fieldId, or null if its not found.
-       */
-      public static _Fields findByThriftId(int fieldId) {
-        switch(fieldId) {
-          default:
-            return null;
-        }
-      }
-
-      /**
-       * Find the _Fields constant that matches fieldId, throwing an exception
-       * if it is not found.
-       */
-      public static _Fields findByThriftIdOrThrow(int fieldId) {
-        _Fields fields = findByThriftId(fieldId);
-        if (fields == null) throw new IllegalArgumentException("Field " + fieldId + " doesn't exist!");
-        return fields;
-      }
-
-      /**
-       * Find the _Fields constant that matches name, or null if its not found.
-       */
-      public static _Fields findByName(String name) {
-        return byName.get(name);
-      }
-
-      private final short _thriftId;
-      private final String _fieldName;
-
-      _Fields(short thriftId, String fieldName) {
-        _thriftId = thriftId;
-        _fieldName = fieldName;
-      }
-
-      public short getThriftFieldId() {
-        return _thriftId;
-      }
-
-      public String getFieldName() {
-        return _fieldName;
-      }
-    }
-    public static final Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> metaDataMap;
-    static {
-      Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> tmpMap = new EnumMap<_Fields, org.apache.thrift.meta_data.FieldMetaData>(_Fields.class);
-      metaDataMap = Collections.unmodifiableMap(tmpMap);
-      org.apache.thrift.meta_data.FieldMetaData.addStructMetaDataMap(callback_result.class, metaDataMap);
-    }
-
-    public callback_result() {
-    }
-
-    /**
-     * Performs a deep copy on <i>other</i>.
-     */
-    public callback_result(callback_result other) {
-    }
-
-    public callback_result deepCopy() {
-      return new callback_result(this);
-    }
-
-    @Override
-    public void clear() {
-    }
-
-    public void setFieldValue(_Fields field, Object value) {
-      switch (field) {
-      }
-    }
-
-    public Object getFieldValue(_Fields field) {
-      switch (field) {
-      }
-      throw new IllegalStateException();
-    }
-
-    /** Returns true if field corresponding to fieldID is set (has been assigned a value) and false otherwise */
-    public boolean isSet(_Fields field) {
-      if (field == null) {
-        throw new IllegalArgumentException();
-      }
-
-      switch (field) {
-      }
-      throw new IllegalStateException();
-    }
-
-    @Override
-    public boolean equals(Object that) {
-      if (that == null)
-        return false;
-      if (that instanceof callback_result)
-        return this.equals((callback_result)that);
-      return false;
-    }
-
-    public boolean equals(callback_result that) {
-      if (that == null)
-        return false;
-
-      return true;
-    }
-
-    @Override
-    public int hashCode() {
-      List<Object> list = new ArrayList<Object>();
-
-      return list.hashCode();
-    }
-
-    @Override
-    public int compareTo(callback_result other) {
-      if (!getClass().equals(other.getClass())) {
-        return getClass().getName().compareTo(other.getClass().getName());
-      }
-
-      int lastComparison = 0;
-
-      return 0;
-    }
-
-    public _Fields fieldForId(int fieldId) {
-      return _Fields.findByThriftId(fieldId);
-    }
-
-    public void read(org.apache.thrift.protocol.TProtocol iprot) throws org.apache.thrift.TException {
-      schemes.get(iprot.getScheme()).getScheme().read(iprot, this);
-    }
-
-    public void write(org.apache.thrift.protocol.TProtocol oprot) throws org.apache.thrift.TException {
-      schemes.get(oprot.getScheme()).getScheme().write(oprot, this);
-      }
-
-    @Override
-    public String toString() {
-      StringBuilder sb = new StringBuilder("callback_result(");
-      boolean first = true;
-
-      sb.append(")");
-      return sb.toString();
-    }
-
-    public void validate() throws org.apache.thrift.TException {
-      // check for required fields
-      // check for sub-struct validity
-    }
-
-    private void writeObject(java.io.ObjectOutputStream out) throws java.io.IOException {
-      try {
-        write(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(out)));
-      } catch (org.apache.thrift.TException te) {
-        throw new java.io.IOException(te);
-      }
-    }
-
-    private void readObject(java.io.ObjectInputStream in) throws java.io.IOException, ClassNotFoundException {
-      try {
-        read(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(in)));
-      } catch (org.apache.thrift.TException te) {
-        throw new java.io.IOException(te);
-      }
-    }
-
-    private static class callback_resultStandardSchemeFactory implements SchemeFactory {
-      public callback_resultStandardScheme getScheme() {
-        return new callback_resultStandardScheme();
-      }
-    }
-
-    private static class callback_resultStandardScheme extends StandardScheme<callback_result> {
-
-      public void read(org.apache.thrift.protocol.TProtocol iprot, callback_result struct) throws org.apache.thrift.TException {
-        org.apache.thrift.protocol.TField schemeField;
-        iprot.readStructBegin();
-        while (true)
-        {
-          schemeField = iprot.readFieldBegin();
-          if (schemeField.type == org.apache.thrift.protocol.TType.STOP) { 
-            break;
-          }
-          switch (schemeField.id) {
-            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, callback_result struct) throws org.apache.thrift.TException {
-        struct.validate();
-
-        oprot.writeStructBegin(STRUCT_DESC);
-        oprot.writeFieldStop();
-        oprot.writeStructEnd();
-      }
-
-    }
-
-    private static class callback_resultTupleSchemeFactory implements SchemeFactory {
-      public callback_resultTupleScheme getScheme() {
-        return new callback_resultTupleScheme();
-      }
-    }
-
-    private static class callback_resultTupleScheme extends TupleScheme<callback_result> {
-
-      @Override
-      public void write(org.apache.thrift.protocol.TProtocol prot, callback_result struct) throws org.apache.thrift.TException {
-        TTupleProtocol oprot = (TTupleProtocol) prot;
-      }
-
-      @Override
-      public void read(org.apache.thrift.protocol.TProtocol prot, callback_result struct) throws org.apache.thrift.TException {
-        TTupleProtocol iprot = (TTupleProtocol) prot;
-      }
-    }
-
-  }
-
-}