| /* |
| * 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.hadoop; |
| |
| import org.apache.tinkerpop.gremlin.AbstractFileGraphProvider; |
| import org.apache.tinkerpop.gremlin.LoadGraphWith; |
| import org.apache.tinkerpop.gremlin.hadoop.structure.HadoopEdge; |
| import org.apache.tinkerpop.gremlin.hadoop.structure.HadoopElement; |
| import org.apache.tinkerpop.gremlin.hadoop.structure.HadoopGraph; |
| import org.apache.tinkerpop.gremlin.hadoop.structure.HadoopProperty; |
| import org.apache.tinkerpop.gremlin.hadoop.structure.HadoopVertex; |
| import org.apache.tinkerpop.gremlin.hadoop.structure.HadoopVertexProperty; |
| import org.apache.tinkerpop.gremlin.hadoop.structure.io.graphson.GraphSONInputFormat; |
| import org.apache.tinkerpop.gremlin.hadoop.structure.io.gryo.GryoInputFormat; |
| import org.apache.tinkerpop.gremlin.hadoop.structure.io.gryo.GryoOutputFormat; |
| import org.apache.tinkerpop.gremlin.process.computer.util.ComputerGraph; |
| import org.apache.tinkerpop.gremlin.structure.Graph; |
| |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.Map; |
| import java.util.Set; |
| |
| /** |
| * @author Marko A. Rodriguez (http://markorodriguez.com) |
| * @author Stephen Mallette (http://stephen.genoprime.com) |
| * @author Daniel Kuppitz (http://gremlin.guru) |
| */ |
| public class HadoopGraphProvider extends AbstractFileGraphProvider { |
| |
| private static final Set<Class> IMPLEMENTATION = Collections.unmodifiableSet(new HashSet<Class>() {{ |
| add(HadoopEdge.class); |
| add(HadoopElement.class); |
| add(HadoopGraph.class); |
| add(HadoopProperty.class); |
| add(HadoopVertex.class); |
| add(HadoopVertexProperty.class); |
| add(ComputerGraph.class); |
| add(ComputerGraph.ComputerElement.class); |
| add(ComputerGraph.ComputerVertex.class); |
| add(ComputerGraph.ComputerEdge.class); |
| add(ComputerGraph.ComputerVertexProperty.class); |
| add(ComputerGraph.ComputerAdjacentVertex.class); |
| add(ComputerGraph.ComputerProperty.class); |
| }}); |
| |
| @Override |
| public Map<String, Object> getBaseConfiguration(final String graphName, final Class<?> test, final String testMethodName, final LoadGraphWith.GraphData loadGraphWith) { |
| this.graphSONInput = RANDOM.nextBoolean(); |
| return new HashMap<String, Object>() {{ |
| put(Graph.GRAPH, HadoopGraph.class.getName()); |
| put(Constants.GREMLIN_HADOOP_GRAPH_READER, graphSONInput ? GraphSONInputFormat.class.getCanonicalName() : GryoInputFormat.class.getCanonicalName()); |
| put(Constants.GREMLIN_HADOOP_GRAPH_WRITER, GryoOutputFormat.class.getCanonicalName()); |
| put(Constants.GREMLIN_HADOOP_OUTPUT_LOCATION, getWorkingDirectory()); |
| put(Constants.GREMLIN_HADOOP_JARS_IN_DISTRIBUTED_CACHE, false); |
| }}; |
| } |
| |
| @Override |
| public void loadGraphData(final Graph graph, final LoadGraphWith loadGraphWith, final Class testClass, final String testName) { |
| if (loadGraphWith != null) ((HadoopGraph) graph).configuration().setInputLocation(getInputLocation(graph, loadGraphWith.value())); |
| } |
| |
| @Override |
| public Set<Class> getImplementations() { |
| return IMPLEMENTATION; |
| } |
| } |