| /* |
| * 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.giraph.structure.io; |
| |
| import org.apache.giraph.io.VertexOutputFormat; |
| import org.apache.giraph.io.VertexWriter; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.mapreduce.JobContext; |
| import org.apache.hadoop.mapreduce.OutputCommitter; |
| import org.apache.hadoop.mapreduce.OutputFormat; |
| import org.apache.hadoop.mapreduce.TaskAttemptContext; |
| import org.apache.hadoop.util.ReflectionUtils; |
| import org.apache.tinkerpop.gremlin.hadoop.Constants; |
| |
| import java.io.IOException; |
| |
| /** |
| * @author Marko A. Rodriguez (http://markorodriguez.com) |
| */ |
| public final class GiraphVertexOutputFormat extends VertexOutputFormat { |
| |
| @Override |
| public VertexWriter createVertexWriter(final TaskAttemptContext context) throws IOException, InterruptedException { |
| return new GiraphVertexWriter(); |
| } |
| |
| @Override |
| public void checkOutputSpecs(final JobContext context) throws IOException, InterruptedException { |
| final Configuration configuration = context.getConfiguration(); |
| ReflectionUtils.newInstance(configuration.getClass(Constants.GREMLIN_HADOOP_GRAPH_WRITER, OutputFormat.class, OutputFormat.class), configuration).checkOutputSpecs(context); |
| } |
| |
| @Override |
| public OutputCommitter getOutputCommitter(final TaskAttemptContext context) throws IOException, InterruptedException { |
| final Configuration configuration = context.getConfiguration(); |
| return ReflectionUtils.newInstance(configuration.getClass(Constants.GREMLIN_HADOOP_GRAPH_WRITER, OutputFormat.class, OutputFormat.class), configuration).getOutputCommitter(context); |
| } |
| |
| } |