gremlin-driver/src/main/java/org/apache/tinkerpop/gremlin/driver/ser/AbstractGraphSONMessageSerializerV2d0.java - tinkerpop - Git at Google

 /*
  * 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.
  */
 package org.apache.tinkerpop.gremlin.driver.ser;

 import groovy.json.JsonBuilder;
 import io.netty.buffer.ByteBuf;
 import io.netty.buffer.ByteBufAllocator;
 import io.netty.util.ReferenceCountUtil;
 import org.apache.tinkerpop.gremlin.driver.message.RequestMessage;
 import org.apache.tinkerpop.gremlin.driver.message.ResponseMessage;
 import org.apache.tinkerpop.gremlin.driver.message.ResponseStatusCode;
 import org.apache.tinkerpop.gremlin.structure.Graph;
 import org.apache.tinkerpop.gremlin.structure.io.graphson.AbstractObjectDeserializer;
 import org.apache.tinkerpop.gremlin.structure.io.graphson.GraphSONMapper;
 import org.apache.tinkerpop.gremlin.structure.io.graphson.GraphSONUtil;
 import org.apache.tinkerpop.gremlin.structure.io.graphson.GraphSONVersion;
 import org.apache.tinkerpop.gremlin.structure.io.graphson.GraphSONXModuleV2d0;
 import org.apache.tinkerpop.shaded.jackson.core.JsonGenerationException;
 import org.apache.tinkerpop.shaded.jackson.core.JsonGenerator;
 import org.apache.tinkerpop.shaded.jackson.core.type.TypeReference;
 import org.apache.tinkerpop.shaded.jackson.databind.ObjectMapper;
 import org.apache.tinkerpop.shaded.jackson.databind.SerializerProvider;
 import org.apache.tinkerpop.shaded.jackson.databind.jsontype.TypeSerializer;
 import org.apache.tinkerpop.shaded.jackson.databind.module.SimpleModule;
 import org.apache.tinkerpop.shaded.jackson.databind.ser.std.StdSerializer;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;

 import java.io.IOException;
 import java.util.Map;
 import java.util.UUID;

 /**
  * @author Stephen Mallette (http://stephen.genoprime.com)
  */
 public abstract class AbstractGraphSONMessageSerializerV2d0 extends AbstractMessageSerializer {
     private static final Logger logger = LoggerFactory.getLogger(AbstractGraphSONMessageSerializerV2d0.class);

     protected ObjectMapper mapper;

     public AbstractGraphSONMessageSerializerV2d0() {
         final GraphSONMapper.Builder builder = configureBuilder(initBuilder(null));
         mapper = builder.create().createMapper();
     }

     @Deprecated
     public AbstractGraphSONMessageSerializerV2d0(final GraphSONMapper mapper) {
         this.mapper = mapper.createMapper();
     }

     public AbstractGraphSONMessageSerializerV2d0(final GraphSONMapper.Builder mapperBuilder) {
         this.mapper = configureBuilder(mapperBuilder).create().createMapper();
     }

     abstract byte[] obtainHeader();

     abstract GraphSONMapper.Builder configureBuilder(final GraphSONMapper.Builder builder);

     @Override
     public void configure(final Map<String, Object> config, final Map<String, Graph> graphs) {
         final GraphSONMapper.Builder initialBuilder = initBuilder(null);
         addIoRegistries(config, initialBuilder);
         mapper = configureBuilder(initialBuilder).create().createMapper();
     }

     @Override
     public ByteBuf serializeResponseAsBinary(final ResponseMessage responseMessage, final ByteBufAllocator allocator) throws SerializationException {
         ByteBuf encodedMessage = null;
         try {
             final byte[] payload = mapper.writeValueAsBytes(responseMessage);
             encodedMessage = allocator.buffer(payload.length);
             encodedMessage.writeBytes(payload);

             return encodedMessage;
         } catch (Exception ex) {
             if (encodedMessage != null) ReferenceCountUtil.release(encodedMessage);

             logger.warn(String.format("Response [%s] could not be serialized by %s.", responseMessage, AbstractGraphSONMessageSerializerV2d0.class.getName()), ex);
             throw new SerializationException(ex);
         }
     }

     @Override
     public ByteBuf serializeRequestAsBinary(final RequestMessage requestMessage, final ByteBufAllocator allocator) throws SerializationException {
         ByteBuf encodedMessage = null;
         try {
             final byte[] header = obtainHeader();
             final byte[] payload = mapper.writeValueAsBytes(requestMessage);

             encodedMessage = allocator.buffer(header.length + payload.length);
             encodedMessage.writeBytes(header);
             encodedMessage.writeBytes(payload);

             return encodedMessage;
         } catch (Exception ex) {
             if (encodedMessage != null) ReferenceCountUtil.release(encodedMessage);

             logger.warn(String.format("Request [%s] could not be serialized by %s.", requestMessage, AbstractGraphSONMessageSerializerV2d0.class.getName()), ex);
             throw new SerializationException(ex);
         }
     }

     @Override
     public RequestMessage deserializeRequest(final ByteBuf msg) throws SerializationException {
         try {
             final byte[] payload = new byte[msg.readableBytes()];
             msg.readBytes(payload);
             return mapper.readValue(payload, RequestMessage.class);
         } catch (Exception ex) {
             logger.warn(String.format("Request [%s] could not be deserialized by %s.", msg, AbstractGraphSONMessageSerializerV2d0.class.getName()), ex);
             throw new SerializationException(ex);
         }
     }

     @Override
     public ResponseMessage deserializeResponse(final ByteBuf msg) throws SerializationException {
         try {
             final byte[] payload = new byte[msg.readableBytes()];
             msg.readBytes(payload);
             return mapper.readValue(payload, ResponseMessage.class);
         } catch (Exception ex) {
             logger.warn(String.format("Response [%s] could not be deserialized by %s.", msg, AbstractGraphSONMessageSerializerV2d0.class.getName()), ex);
             throw new SerializationException(ex);
         }
     }

     private GraphSONMapper.Builder initBuilder(final GraphSONMapper.Builder builder) {
         final GraphSONMapper.Builder b = null == builder ? GraphSONMapper.build() : builder;
         return b.addCustomModule(GraphSONXModuleV2d0.build().create(false))
                 .version(GraphSONVersion.V2_0);
     }

     public final static class GremlinServerModule extends SimpleModule {
         public GremlinServerModule() {
             super("graphson-gremlin-server");

             // SERIALIZERS
             addSerializer(JsonBuilder.class, new JsonBuilderJacksonSerializer());
             addSerializer(ResponseMessage.class, new ResponseMessageSerializer());
             addSerializer(RequestMessage.class, new RequestMessageSerializer());

             //DESERIALIZERS
             addDeserializer(ResponseMessage.class, new ResponseMessageDeserializer());
             addDeserializer(RequestMessage.class, new RequestMessageDeserializer());
         }
     }

     public final static class JsonBuilderJacksonSerializer extends StdSerializer<JsonBuilder> {
         public JsonBuilderJacksonSerializer() {
             super(JsonBuilder.class);
         }

         @Override
         public void serialize(final JsonBuilder json, final JsonGenerator jsonGenerator, final SerializerProvider serializerProvider)
                 throws IOException, JsonGenerationException {
             // the JSON from the builder will already be started/ended as array or object...just need to surround it
             // with appropriate chars to fit into the serialization pattern.
             jsonGenerator.writeRaw(":");
             jsonGenerator.writeRaw(json.toString());
             jsonGenerator.writeRaw(",");
         }
     }

     public final static class RequestMessageSerializer extends StdSerializer<RequestMessage> {
         public RequestMessageSerializer() {
             super(RequestMessage.class);
         }

         @Override
         public void serialize(final RequestMessage requestMessage, final JsonGenerator jsonGenerator,
                               final SerializerProvider serializerProvider) throws IOException {
             ser(requestMessage, jsonGenerator, serializerProvider, null);
         }

         @Override
         public void serializeWithType(final RequestMessage requestMessage, final JsonGenerator jsonGenerator,
                                       final SerializerProvider serializerProvider,
                                       final TypeSerializer typeSerializer) throws IOException {
             ser(requestMessage, jsonGenerator, serializerProvider, typeSerializer);
         }

         public void ser(final RequestMessage requestMessage, final JsonGenerator jsonGenerator,
                         final SerializerProvider serializerProvider,
                         final TypeSerializer typeSerializer) throws IOException {
             GraphSONUtil.writeStartObject(requestMessage, jsonGenerator, typeSerializer);

             jsonGenerator.writeStringField(SerTokens.TOKEN_REQUEST, requestMessage.getRequestId().toString());
             jsonGenerator.writeStringField(SerTokens.TOKEN_OP, requestMessage.getOp());
             jsonGenerator.writeStringField(SerTokens.TOKEN_PROCESSOR, requestMessage.getProcessor());
             jsonGenerator.writeObjectField(SerTokens.TOKEN_ARGS, requestMessage.getArgs());

             GraphSONUtil.writeEndObject(requestMessage, jsonGenerator, typeSerializer);
         }
     }

     public final static class RequestMessageDeserializer extends AbstractObjectDeserializer<RequestMessage> {
         protected RequestMessageDeserializer() {
             super(RequestMessage.class);
         }

         @Override
         public RequestMessage createObject(final Map<String, Object> data) {
             final Map<String, Object> args = (Map<String, Object>) data.get(SerTokens.TOKEN_ARGS);
             RequestMessage.Builder builder = RequestMessage.build(data.get(SerTokens.TOKEN_OP).toString())
                     .overrideRequestId(UUID.fromString(data.get(SerTokens.TOKEN_REQUEST).toString()));

             if (data.containsKey(SerTokens.TOKEN_PROCESSOR))
                 builder = builder.processor(data.get(SerTokens.TOKEN_PROCESSOR).toString());

             if (args != null) {
                 for (Map.Entry<String, Object> kv : args.entrySet()) {
                     builder = builder.addArg(kv.getKey(), kv.getValue());
                 }
             }

             return builder.create();
         }
     }

     public final static class ResponseMessageSerializer extends StdSerializer<ResponseMessage> {
         public ResponseMessageSerializer() {
             super(ResponseMessage.class);
         }

         @Override
         public void serialize(final ResponseMessage responseMessage, final JsonGenerator jsonGenerator,
                               final SerializerProvider serializerProvider) throws IOException {
             ser(responseMessage, jsonGenerator, serializerProvider, null);
         }

         @Override
         public void serializeWithType(final ResponseMessage responseMessage, final JsonGenerator jsonGenerator,
                                       final SerializerProvider serializerProvider,
                                       final TypeSerializer typeSerializer) throws IOException {
             ser(responseMessage, jsonGenerator, serializerProvider, typeSerializer);
         }

         public void ser(final ResponseMessage responseMessage, final JsonGenerator jsonGenerator,
                         final SerializerProvider serializerProvider,
                         final TypeSerializer typeSerializer) throws IOException {
             GraphSONUtil.writeStartObject(responseMessage, jsonGenerator, typeSerializer);

             jsonGenerator.writeStringField(SerTokens.TOKEN_REQUEST, responseMessage.getRequestId() != null ? responseMessage.getRequestId().toString() : null);
             jsonGenerator.writeFieldName(SerTokens.TOKEN_STATUS);

             GraphSONUtil.writeStartObject(responseMessage, jsonGenerator, typeSerializer);
             jsonGenerator.writeStringField(SerTokens.TOKEN_MESSAGE, responseMessage.getStatus().getMessage());
             jsonGenerator.writeNumberField(SerTokens.TOKEN_CODE, responseMessage.getStatus().getCode().getValue());
             jsonGenerator.writeObjectField(SerTokens.TOKEN_ATTRIBUTES, responseMessage.getStatus().getAttributes());
             GraphSONUtil.writeEndObject(responseMessage, jsonGenerator, typeSerializer);

             jsonGenerator.writeFieldName(SerTokens.TOKEN_RESULT);

             GraphSONUtil.writeStartObject(responseMessage, jsonGenerator, typeSerializer);

             if (null == responseMessage.getResult().getData()){
                 jsonGenerator.writeNullField(SerTokens.TOKEN_DATA);
             } else {
                 jsonGenerator.writeFieldName(SerTokens.TOKEN_DATA);
                 final Object result = responseMessage.getResult().getData();
                 serializerProvider.findTypedValueSerializer(result.getClass(), true, null).serialize(result, jsonGenerator, serializerProvider);
             }

             jsonGenerator.writeObjectField(SerTokens.TOKEN_META, responseMessage.getResult().getMeta());
             GraphSONUtil.writeEndObject(responseMessage, jsonGenerator, typeSerializer);

             GraphSONUtil.writeEndObject(responseMessage, jsonGenerator, typeSerializer);
         }
     }

     public final static class ResponseMessageDeserializer extends AbstractObjectDeserializer<ResponseMessage> {
         protected ResponseMessageDeserializer() {
             super(ResponseMessage.class);
         }

         @Override
         public ResponseMessage createObject(final Map<String, Object> data) {
             final Map<String, Object> status = (Map<String, Object>) data.get(SerTokens.TOKEN_STATUS);
             final Map<String, Object> result = (Map<String, Object>) data.get(SerTokens.TOKEN_RESULT);
             return ResponseMessage.build(UUID.fromString(data.get(SerTokens.TOKEN_REQUEST).toString()))
                     .code(ResponseStatusCode.getFromValue((Integer) status.get(SerTokens.TOKEN_CODE)))
                     .statusMessage(status.get(SerTokens.TOKEN_MESSAGE).toString())
                     .statusAttributes((Map<String, Object>) status.get(SerTokens.TOKEN_ATTRIBUTES))
                     .result(result.get(SerTokens.TOKEN_DATA))
                     .responseMetaData((Map<String, Object>) result.get(SerTokens.TOKEN_META))
                     .create();
         }
     }
 }
	/*
	* 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.
	*/
	package org.apache.tinkerpop.gremlin.driver.ser;

	import groovy.json.JsonBuilder;
	import io.netty.buffer.ByteBuf;
	import io.netty.buffer.ByteBufAllocator;
	import io.netty.util.ReferenceCountUtil;
	import org.apache.tinkerpop.gremlin.driver.message.RequestMessage;
	import org.apache.tinkerpop.gremlin.driver.message.ResponseMessage;
	import org.apache.tinkerpop.gremlin.driver.message.ResponseStatusCode;
	import org.apache.tinkerpop.gremlin.structure.Graph;
	import org.apache.tinkerpop.gremlin.structure.io.graphson.AbstractObjectDeserializer;
	import org.apache.tinkerpop.gremlin.structure.io.graphson.GraphSONMapper;
	import org.apache.tinkerpop.gremlin.structure.io.graphson.GraphSONUtil;
	import org.apache.tinkerpop.gremlin.structure.io.graphson.GraphSONVersion;
	import org.apache.tinkerpop.gremlin.structure.io.graphson.GraphSONXModuleV2d0;
	import org.apache.tinkerpop.shaded.jackson.core.JsonGenerationException;
	import org.apache.tinkerpop.shaded.jackson.core.JsonGenerator;
	import org.apache.tinkerpop.shaded.jackson.core.type.TypeReference;
	import org.apache.tinkerpop.shaded.jackson.databind.ObjectMapper;
	import org.apache.tinkerpop.shaded.jackson.databind.SerializerProvider;
	import org.apache.tinkerpop.shaded.jackson.databind.jsontype.TypeSerializer;
	import org.apache.tinkerpop.shaded.jackson.databind.module.SimpleModule;
	import org.apache.tinkerpop.shaded.jackson.databind.ser.std.StdSerializer;
	import org.slf4j.Logger;
	import org.slf4j.LoggerFactory;

	import java.io.IOException;
	import java.util.Map;
	import java.util.UUID;

	/**
	* @author Stephen Mallette (http://stephen.genoprime.com)
	*/
	public abstract class AbstractGraphSONMessageSerializerV2d0 extends AbstractMessageSerializer {
	private static final Logger logger = LoggerFactory.getLogger(AbstractGraphSONMessageSerializerV2d0.class);

	protected ObjectMapper mapper;

	public AbstractGraphSONMessageSerializerV2d0() {
	final GraphSONMapper.Builder builder = configureBuilder(initBuilder(null));
	mapper = builder.create().createMapper();
	}

	@Deprecated
	public AbstractGraphSONMessageSerializerV2d0(final GraphSONMapper mapper) {
	this.mapper = mapper.createMapper();
	}

	public AbstractGraphSONMessageSerializerV2d0(final GraphSONMapper.Builder mapperBuilder) {
	this.mapper = configureBuilder(mapperBuilder).create().createMapper();
	}

	abstract byte[] obtainHeader();

	abstract GraphSONMapper.Builder configureBuilder(final GraphSONMapper.Builder builder);

	@Override
	public void configure(final Map<String, Object> config, final Map<String, Graph> graphs) {
	final GraphSONMapper.Builder initialBuilder = initBuilder(null);
	addIoRegistries(config, initialBuilder);
	mapper = configureBuilder(initialBuilder).create().createMapper();
	}

	@Override
	public ByteBuf serializeResponseAsBinary(final ResponseMessage responseMessage, final ByteBufAllocator allocator) throws SerializationException {
	ByteBuf encodedMessage = null;
	try {
	final byte[] payload = mapper.writeValueAsBytes(responseMessage);
	encodedMessage = allocator.buffer(payload.length);
	encodedMessage.writeBytes(payload);

	return encodedMessage;
	} catch (Exception ex) {
	if (encodedMessage != null) ReferenceCountUtil.release(encodedMessage);

	logger.warn(String.format("Response [%s] could not be serialized by %s.", responseMessage, AbstractGraphSONMessageSerializerV2d0.class.getName()), ex);
	throw new SerializationException(ex);
	}
	}

	@Override
	public ByteBuf serializeRequestAsBinary(final RequestMessage requestMessage, final ByteBufAllocator allocator) throws SerializationException {
	ByteBuf encodedMessage = null;
	try {
	final byte[] header = obtainHeader();
	final byte[] payload = mapper.writeValueAsBytes(requestMessage);

	encodedMessage = allocator.buffer(header.length + payload.length);
	encodedMessage.writeBytes(header);
	encodedMessage.writeBytes(payload);

	return encodedMessage;
	} catch (Exception ex) {
	if (encodedMessage != null) ReferenceCountUtil.release(encodedMessage);

	logger.warn(String.format("Request [%s] could not be serialized by %s.", requestMessage, AbstractGraphSONMessageSerializerV2d0.class.getName()), ex);
	throw new SerializationException(ex);
	}
	}

	@Override
	public RequestMessage deserializeRequest(final ByteBuf msg) throws SerializationException {
	try {
	final byte[] payload = new byte[msg.readableBytes()];
	msg.readBytes(payload);
	return mapper.readValue(payload, RequestMessage.class);
	} catch (Exception ex) {
	logger.warn(String.format("Request [%s] could not be deserialized by %s.", msg, AbstractGraphSONMessageSerializerV2d0.class.getName()), ex);
	throw new SerializationException(ex);
	}
	}

	@Override
	public ResponseMessage deserializeResponse(final ByteBuf msg) throws SerializationException {
	try {
	final byte[] payload = new byte[msg.readableBytes()];
	msg.readBytes(payload);
	return mapper.readValue(payload, ResponseMessage.class);
	} catch (Exception ex) {
	logger.warn(String.format("Response [%s] could not be deserialized by %s.", msg, AbstractGraphSONMessageSerializerV2d0.class.getName()), ex);
	throw new SerializationException(ex);
	}
	}

	private GraphSONMapper.Builder initBuilder(final GraphSONMapper.Builder builder) {
	final GraphSONMapper.Builder b = null == builder ? GraphSONMapper.build() : builder;
	return b.addCustomModule(GraphSONXModuleV2d0.build().create(false))
	.version(GraphSONVersion.V2_0);
	}

	public final static class GremlinServerModule extends SimpleModule {
	public GremlinServerModule() {
	super("graphson-gremlin-server");

	// SERIALIZERS
	addSerializer(JsonBuilder.class, new JsonBuilderJacksonSerializer());
	addSerializer(ResponseMessage.class, new ResponseMessageSerializer());
	addSerializer(RequestMessage.class, new RequestMessageSerializer());

	//DESERIALIZERS
	addDeserializer(ResponseMessage.class, new ResponseMessageDeserializer());
	addDeserializer(RequestMessage.class, new RequestMessageDeserializer());
	}
	}

	public final static class JsonBuilderJacksonSerializer extends StdSerializer<JsonBuilder> {
	public JsonBuilderJacksonSerializer() {
	super(JsonBuilder.class);
	}

	@Override
	public void serialize(final JsonBuilder json, final JsonGenerator jsonGenerator, final SerializerProvider serializerProvider)
	throws IOException, JsonGenerationException {
	// the JSON from the builder will already be started/ended as array or object...just need to surround it
	// with appropriate chars to fit into the serialization pattern.
	jsonGenerator.writeRaw(":");
	jsonGenerator.writeRaw(json.toString());
	jsonGenerator.writeRaw(",");
	}
	}

	public final static class RequestMessageSerializer extends StdSerializer<RequestMessage> {
	public RequestMessageSerializer() {
	super(RequestMessage.class);
	}

	@Override
	public void serialize(final RequestMessage requestMessage, final JsonGenerator jsonGenerator,
	final SerializerProvider serializerProvider) throws IOException {
	ser(requestMessage, jsonGenerator, serializerProvider, null);
	}

	@Override
	public void serializeWithType(final RequestMessage requestMessage, final JsonGenerator jsonGenerator,
	final SerializerProvider serializerProvider,
	final TypeSerializer typeSerializer) throws IOException {
	ser(requestMessage, jsonGenerator, serializerProvider, typeSerializer);
	}

	public void ser(final RequestMessage requestMessage, final JsonGenerator jsonGenerator,
	final SerializerProvider serializerProvider,
	final TypeSerializer typeSerializer) throws IOException {
	GraphSONUtil.writeStartObject(requestMessage, jsonGenerator, typeSerializer);

	jsonGenerator.writeStringField(SerTokens.TOKEN_REQUEST, requestMessage.getRequestId().toString());
	jsonGenerator.writeStringField(SerTokens.TOKEN_OP, requestMessage.getOp());
	jsonGenerator.writeStringField(SerTokens.TOKEN_PROCESSOR, requestMessage.getProcessor());
	jsonGenerator.writeObjectField(SerTokens.TOKEN_ARGS, requestMessage.getArgs());

	GraphSONUtil.writeEndObject(requestMessage, jsonGenerator, typeSerializer);
	}
	}

	public final static class RequestMessageDeserializer extends AbstractObjectDeserializer<RequestMessage> {
	protected RequestMessageDeserializer() {
	super(RequestMessage.class);
	}

	@Override
	public RequestMessage createObject(final Map<String, Object> data) {
	final Map<String, Object> args = (Map<String, Object>) data.get(SerTokens.TOKEN_ARGS);
	RequestMessage.Builder builder = RequestMessage.build(data.get(SerTokens.TOKEN_OP).toString())
	.overrideRequestId(UUID.fromString(data.get(SerTokens.TOKEN_REQUEST).toString()));

	if (data.containsKey(SerTokens.TOKEN_PROCESSOR))
	builder = builder.processor(data.get(SerTokens.TOKEN_PROCESSOR).toString());

	if (args != null) {
	for (Map.Entry<String, Object> kv : args.entrySet()) {
	builder = builder.addArg(kv.getKey(), kv.getValue());
	}
	}

	return builder.create();
	}
	}

	public final static class ResponseMessageSerializer extends StdSerializer<ResponseMessage> {
	public ResponseMessageSerializer() {
	super(ResponseMessage.class);
	}

	@Override
	public void serialize(final ResponseMessage responseMessage, final JsonGenerator jsonGenerator,
	final SerializerProvider serializerProvider) throws IOException {
	ser(responseMessage, jsonGenerator, serializerProvider, null);
	}

	@Override
	public void serializeWithType(final ResponseMessage responseMessage, final JsonGenerator jsonGenerator,
	final SerializerProvider serializerProvider,
	final TypeSerializer typeSerializer) throws IOException {
	ser(responseMessage, jsonGenerator, serializerProvider, typeSerializer);
	}

	public void ser(final ResponseMessage responseMessage, final JsonGenerator jsonGenerator,
	final SerializerProvider serializerProvider,
	final TypeSerializer typeSerializer) throws IOException {
	GraphSONUtil.writeStartObject(responseMessage, jsonGenerator, typeSerializer);

	jsonGenerator.writeStringField(SerTokens.TOKEN_REQUEST, responseMessage.getRequestId() != null ? responseMessage.getRequestId().toString() : null);
	jsonGenerator.writeFieldName(SerTokens.TOKEN_STATUS);

	GraphSONUtil.writeStartObject(responseMessage, jsonGenerator, typeSerializer);
	jsonGenerator.writeStringField(SerTokens.TOKEN_MESSAGE, responseMessage.getStatus().getMessage());
	jsonGenerator.writeNumberField(SerTokens.TOKEN_CODE, responseMessage.getStatus().getCode().getValue());
	jsonGenerator.writeObjectField(SerTokens.TOKEN_ATTRIBUTES, responseMessage.getStatus().getAttributes());
	GraphSONUtil.writeEndObject(responseMessage, jsonGenerator, typeSerializer);

	jsonGenerator.writeFieldName(SerTokens.TOKEN_RESULT);

	GraphSONUtil.writeStartObject(responseMessage, jsonGenerator, typeSerializer);

	if (null == responseMessage.getResult().getData()){
	jsonGenerator.writeNullField(SerTokens.TOKEN_DATA);
	} else {
	jsonGenerator.writeFieldName(SerTokens.TOKEN_DATA);
	final Object result = responseMessage.getResult().getData();
	serializerProvider.findTypedValueSerializer(result.getClass(), true, null).serialize(result, jsonGenerator, serializerProvider);
	}

	jsonGenerator.writeObjectField(SerTokens.TOKEN_META, responseMessage.getResult().getMeta());
	GraphSONUtil.writeEndObject(responseMessage, jsonGenerator, typeSerializer);

	GraphSONUtil.writeEndObject(responseMessage, jsonGenerator, typeSerializer);
	}
	}

	public final static class ResponseMessageDeserializer extends AbstractObjectDeserializer<ResponseMessage> {
	protected ResponseMessageDeserializer() {
	super(ResponseMessage.class);
	}

	@Override
	public ResponseMessage createObject(final Map<String, Object> data) {
	final Map<String, Object> status = (Map<String, Object>) data.get(SerTokens.TOKEN_STATUS);
	final Map<String, Object> result = (Map<String, Object>) data.get(SerTokens.TOKEN_RESULT);
	return ResponseMessage.build(UUID.fromString(data.get(SerTokens.TOKEN_REQUEST).toString()))
	.code(ResponseStatusCode.getFromValue((Integer) status.get(SerTokens.TOKEN_CODE)))
	.statusMessage(status.get(SerTokens.TOKEN_MESSAGE).toString())
	.statusAttributes((Map<String, Object>) status.get(SerTokens.TOKEN_ATTRIBUTES))
	.result(result.get(SerTokens.TOKEN_DATA))
	.responseMetaData((Map<String, Object>) result.get(SerTokens.TOKEN_META))
	.create();
	}
	}
	}