| /* |
| * 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.structure.io.gryo; |
| |
| import org.apache.tinkerpop.gremlin.process.traversal.Path; |
| import org.apache.tinkerpop.gremlin.structure.Edge; |
| import org.apache.tinkerpop.gremlin.structure.Property; |
| import org.apache.tinkerpop.gremlin.structure.Vertex; |
| import org.apache.tinkerpop.gremlin.structure.VertexProperty; |
| import org.apache.tinkerpop.gremlin.structure.io.gryo.kryoshim.InputShim; |
| import org.apache.tinkerpop.gremlin.structure.io.gryo.kryoshim.KryoShim; |
| import org.apache.tinkerpop.gremlin.structure.io.gryo.kryoshim.OutputShim; |
| import org.apache.tinkerpop.gremlin.structure.io.gryo.kryoshim.SerializerShim; |
| import org.apache.tinkerpop.gremlin.structure.util.detached.DetachedEdge; |
| import org.apache.tinkerpop.gremlin.structure.util.detached.DetachedFactory; |
| import org.apache.tinkerpop.gremlin.structure.util.detached.DetachedPath; |
| import org.apache.tinkerpop.gremlin.structure.util.detached.DetachedProperty; |
| import org.apache.tinkerpop.gremlin.structure.util.detached.DetachedVertex; |
| import org.apache.tinkerpop.gremlin.structure.util.detached.DetachedVertexProperty; |
| |
| /** |
| * Class used to serialize graph-based objects such as vertices, edges, properties, and paths. These objects are |
| * "detached" using {@link DetachedFactory} before serialization. These serializers present a generalized way to |
| * serialize the implementations of core interfaces. |
| * |
| * @author Stephen Mallette (http://stephen.genoprime.com) |
| * @author Marko A. Rodriguez (http://markorodriguez.com) |
| */ |
| public final class GryoSerializers { |
| |
| /** |
| * Serializes any {@link Edge} implementation encountered to a {@link DetachedEdge}. |
| */ |
| public final static class EdgeSerializer implements SerializerShim<Edge> { |
| @Override |
| public <O extends OutputShim> void write(final KryoShim<?, O> kryo, final O output, final Edge edge) { |
| kryo.writeClassAndObject(output, DetachedFactory.detach(edge, true)); |
| } |
| |
| @Override |
| public <I extends InputShim> Edge read(final KryoShim<I, ?> kryo, final I input, final Class<Edge> edgeClass) { |
| final Object o = kryo.readClassAndObject(input); |
| return (Edge) o; |
| } |
| } |
| |
| /** |
| * Serializes any {@link Vertex} implementation encountered to an {@link DetachedVertex}. |
| */ |
| public final static class VertexSerializer implements SerializerShim<Vertex> { |
| @Override |
| public <O extends OutputShim> void write(final KryoShim<?, O> kryo, final O output, final Vertex vertex) { |
| kryo.writeClassAndObject(output, DetachedFactory.detach(vertex, true)); |
| } |
| |
| @Override |
| public <I extends InputShim> Vertex read(final KryoShim<I, ?> kryo, final I input, final Class<Vertex> vertexClass) { |
| return (Vertex) kryo.readClassAndObject(input); |
| } |
| } |
| |
| /** |
| * Serializes any {@link Property} implementation encountered to an {@link DetachedProperty}. |
| */ |
| public final static class PropertySerializer implements SerializerShim<Property> { |
| @Override |
| public <O extends OutputShim> void write(final KryoShim<?, O> kryo, final O output, final Property property) { |
| kryo.writeClassAndObject(output, property instanceof VertexProperty ? DetachedFactory.detach((VertexProperty) property, true) : DetachedFactory.detach(property)); |
| } |
| |
| @Override |
| public <I extends InputShim> Property read(final KryoShim<I, ?> kryo, final I input, final Class<Property> propertyClass) { |
| return (Property) kryo.readClassAndObject(input); |
| } |
| } |
| |
| /** |
| * Serializes any {@link VertexProperty} implementation encountered to an {@link DetachedVertexProperty}. |
| */ |
| public final static class VertexPropertySerializer implements SerializerShim<VertexProperty> { |
| @Override |
| public <O extends OutputShim> void write(final KryoShim<?, O> kryo, final O output, final VertexProperty vertexProperty) { |
| kryo.writeClassAndObject(output, DetachedFactory.detach(vertexProperty, true)); |
| } |
| |
| @Override |
| public <I extends InputShim> VertexProperty read(final KryoShim<I, ?> kryo, final I input, final Class<VertexProperty> vertexPropertyClass) { |
| return (VertexProperty) kryo.readClassAndObject(input); |
| } |
| } |
| |
| /** |
| * Serializes any {@link Path} implementation encountered to an {@link DetachedPath}. |
| */ |
| public final static class PathSerializer implements SerializerShim<Path> { |
| @Override |
| public <O extends OutputShim> void write(final KryoShim<?, O> kryo, final O output, final Path path) { |
| kryo.writeClassAndObject(output, DetachedFactory.detach(path, false)); |
| } |
| |
| @Override |
| public <I extends InputShim> Path read(final KryoShim<I, ?> kryo, final I input, final Class<Path> pathClass) { |
| return (Path) kryo.readClassAndObject(input); |
| } |
| } |
| } |