Java tutorial
/** * Copyright 2013 Cameron Cook * * 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 edu.american.student.redis.hadoop; import java.io.IOException; import org.apache.hadoop.io.Text; import org.apache.hadoop.mapreduce.RecordWriter; import org.apache.hadoop.mapreduce.TaskAttemptContext; import edu.american.student.redis.MessageFactory; import edu.american.student.redis.foreman.RedisForeman; import edu.american.student.redis.foreman.RedisForemanException; public class RedisBigTableRecordWriter extends RecordWriter<RedisBigTableKey, Text> { private static byte[] table; private RedisForeman foreman = new RedisForeman(); public RedisBigTableRecordWriter(byte[] table) { RedisBigTableRecordWriter.table = table; } @Override public void close(TaskAttemptContext arg0) throws IOException, InterruptedException { foreman.disconnect(); } @Override public void write(RedisBigTableKey key, Text value) throws IOException, InterruptedException { try { foreman.write(table, key, value.getBytes()); } catch (RedisForemanException e) { throw new IOException(MessageFactory.objective("Write key/value").objects(key, value).toString(), e); } } }