Java tutorial
/* * Copyright 2003-2016 MarkLogic Corporation * * Licensed 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 com.marklogic.contentpump; import java.io.IOException; import org.apache.hadoop.conf.Configuration; import org.apache.hadoop.fs.Path; import org.apache.hadoop.mapreduce.JobContext; import org.apache.hadoop.mapreduce.OutputCommitter; import org.apache.hadoop.mapreduce.RecordWriter; import org.apache.hadoop.mapreduce.TaskAttemptContext; import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat; import com.marklogic.mapreduce.DocumentURI; import com.marklogic.mapreduce.MarkLogicDocument; /** * OutputFormat for DocumentURI and MarkLogicDocument creating a single file. * * @author ali */ public class SingleDocumentOutputFormat extends FileOutputFormat<DocumentURI, MarkLogicDocument> { @Override public RecordWriter<DocumentURI, MarkLogicDocument> getRecordWriter(TaskAttemptContext contex) throws IOException, InterruptedException { Configuration conf = contex.getConfiguration(); String p = conf.get(ConfigConstants.CONF_OUTPUT_FILEPATH); Path path = new Path(p); return new SingleDocumentWriter(path, conf); } @Override public synchronized OutputCommitter getOutputCommitter(TaskAttemptContext context) throws IOException { return new OutputCommitter() { public void abortTask(TaskAttemptContext taskContext) { } public void commitTask(TaskAttemptContext taskContext) { } public boolean needsTaskCommit(TaskAttemptContext taskContext) { return false; } public void setupJob(JobContext jobContext) { } public void setupTask(TaskAttemptContext taskContext) { } }; } }