| /* |
| * 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.util.ser; |
| |
| import io.netty.buffer.ByteBufAllocator; |
| import org.apache.tinkerpop.gremlin.util.message.RequestMessage; |
| import org.apache.tinkerpop.gremlin.util.message.ResponseMessage; |
| import org.apache.tinkerpop.gremlin.structure.io.graphson.GraphSONMapper; |
| import org.apache.tinkerpop.gremlin.structure.io.graphson.GraphSONVersion; |
| import org.apache.tinkerpop.gremlin.structure.io.graphson.GraphSONXModuleV3d0; |
| import org.apache.tinkerpop.shaded.jackson.databind.ObjectMapper; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.nio.ByteBuffer; |
| |
| /** |
| * Serialize results to JSON with version 3.0.x schema and the extended module. |
| * |
| * @author Stephen Mallette (http://stephen.genoprime.com) |
| */ |
| public final class GraphSONMessageSerializerV3d0 extends AbstractGraphSONMessageSerializerV2d0 implements MessageTextSerializer<ObjectMapper> { |
| private static final Logger logger = LoggerFactory.getLogger(GraphSONMessageSerializerV3d0.class); |
| private static final String MIME_TYPE = SerTokens.MIME_GRAPHSON_V3D0; |
| |
| private static byte[] header; |
| |
| static { |
| final ByteBuffer buffer = ByteBuffer.allocate(MIME_TYPE.length() + 1); |
| buffer.put((byte) MIME_TYPE.length()); |
| buffer.put(MIME_TYPE.getBytes()); |
| header = buffer.array(); |
| } |
| |
| /** |
| * Creates a default GraphSONMessageSerializer. |
| * <p> |
| * By default this will internally instantiate a {@link GraphSONMapper} and register |
| * a {@link GremlinServerModule} and {@link GraphSONXModuleV3d0} to the mapper. |
| * |
| * @see #GraphSONMessageSerializerV3d0(GraphSONMapper.Builder) |
| */ |
| public GraphSONMessageSerializerV3d0() { |
| super(); |
| } |
| |
| /** |
| * Create a GraphSONMessageSerializer from a {@link GraphSONMapper}. Deprecated, use |
| * {@link #GraphSONMessageSerializerV3d0(GraphSONMapper.Builder)} instead. |
| */ |
| @Deprecated |
| public GraphSONMessageSerializerV3d0(final GraphSONMapper mapper) { |
| super(mapper); |
| } |
| |
| /** |
| * Create a GraphSONMessageSerializer with a provided {@link GraphSONMapper.Builder}. |
| * |
| * Note that to make this mapper usable in the context of request messages and responses, |
| * this method will automatically register a {@link GremlinServerModule} to the provided |
| * mapper. |
| */ |
| public GraphSONMessageSerializerV3d0(final GraphSONMapper.Builder mapperBuilder) { |
| super(mapperBuilder); |
| } |
| |
| @Override |
| public String[] mimeTypesSupported() { |
| return new String[]{MIME_TYPE, SerTokens.MIME_JSON}; |
| } |
| |
| @Override |
| GraphSONMapper.Builder configureBuilder(final GraphSONMapper.Builder builder) { |
| // override the 2.0 in AbstractGraphSONMessageSerializerV2d0 |
| return builder.version(GraphSONVersion.V3_0).addCustomModule(new GremlinServerModule()); |
| } |
| |
| @Override |
| byte[] obtainHeader() { |
| return header; |
| } |
| |
| @Override |
| public ResponseMessage deserializeResponse(final String msg) throws SerializationException { |
| try { |
| return mapper.readValue(msg, ResponseMessage.class); |
| } catch (Exception ex) { |
| logger.warn(String.format("Response [%s] could not be deserialized by %s.", msg, GraphSONMessageSerializerV3d0.class.getName()), ex); |
| throw new SerializationException(ex); |
| } |
| } |
| |
| @Override |
| public String serializeResponseAsString(final ResponseMessage responseMessage, final ByteBufAllocator allocator) throws SerializationException { |
| try { |
| return mapper.writeValueAsString(responseMessage); |
| } catch (Exception ex) { |
| logger.warn(String.format("Response [%s] could not be serialized by %s.", responseMessage.toString(), GraphSONMessageSerializerV3d0.class.getName()), ex); |
| throw new SerializationException(ex); |
| } |
| } |
| |
| @Override |
| public RequestMessage deserializeRequest(final String msg) throws SerializationException { |
| try { |
| return mapper.readValue(msg, RequestMessage.class); |
| } catch (Exception ex) { |
| logger.warn(String.format("Request [%s] could not be deserialized by %s.", msg, GraphSONMessageSerializerV3d0.class.getName()), ex); |
| throw new SerializationException(ex); |
| } |
| } |
| |
| @Override |
| public String serializeRequestAsString(final RequestMessage requestMessage, final ByteBufAllocator allocator) throws SerializationException { |
| try { |
| return mapper.writeValueAsString(requestMessage); |
| } catch (Exception ex) { |
| logger.warn(String.format("Request [%s] could not be serialized by %s.", requestMessage.toString(), GraphSONMessageSerializerV3d0.class.getName()), ex); |
| throw new SerializationException(ex); |
| } |
| } |
| } |