Java tutorial
/** Copyright (c) 2014 BlackBerry Limited * * 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.blackberry.logdriver.mapred.boom; import java.io.IOException; import org.apache.hadoop.fs.FSDataOutputStream; import org.apache.hadoop.fs.Path; import org.apache.hadoop.io.Text; import org.apache.hadoop.mapred.JobConf; import org.apache.hadoop.mapred.RecordWriter; import org.apache.hadoop.mapred.Reporter; import com.blackberry.logdriver.boom.LogLineData; import com.blackberry.logdriver.boom.ReBoomWriter; import com.blackberry.logdriver.mapred.BinaryOutputFormat; public class ReBoomRecordWriter implements RecordWriter<LogLineData, Text> { private ReBoomWriter writer; public ReBoomRecordWriter(ReBoomOutputFormat reBoomOutputFormat, JobConf job) throws IOException { String taskid = job.get("mapred.task.id"); Path path = BinaryOutputFormat.getTaskOutputPath(job, taskid + ".bm"); FSDataOutputStream out = path.getFileSystem(job).create(path); writer = new ReBoomWriter(out); } @Override public void write(LogLineData key, Text value) throws IOException { writer.writeLine(key.getTimestamp(), value.toString(), key.getEventId(), key.getCreateTime(), key.getBlockNumber()); } @Override public void close(Reporter reporter) throws IOException { writer.close(); } }