| /** |
| * |
| * 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.hadoop.hbase.mapred; |
| |
| import java.io.IOException; |
| import java.util.Iterator; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.hadoop.hbase.classification.InterfaceAudience; |
| import org.apache.hadoop.hbase.classification.InterfaceStability; |
| import org.apache.hadoop.hbase.client.Put; |
| import org.apache.hadoop.hbase.io.ImmutableBytesWritable; |
| import org.apache.hadoop.mapred.MapReduceBase; |
| import org.apache.hadoop.mapred.OutputCollector; |
| import org.apache.hadoop.mapred.Reporter; |
| |
| /** |
| * Write to table each key, record pair |
| */ |
| @Deprecated |
| @InterfaceAudience.Public |
| @InterfaceStability.Stable |
| public class IdentityTableReduce |
| extends MapReduceBase |
| implements TableReduce<ImmutableBytesWritable, Put> { |
| @SuppressWarnings("unused") |
| private static final Log LOG = |
| LogFactory.getLog(IdentityTableReduce.class.getName()); |
| |
| /** |
| * No aggregation, output pairs of (key, record) |
| * @param key |
| * @param values |
| * @param output |
| * @param reporter |
| * @throws IOException |
| */ |
| public void reduce(ImmutableBytesWritable key, Iterator<Put> values, |
| OutputCollector<ImmutableBytesWritable, Put> output, |
| Reporter reporter) |
| throws IOException { |
| |
| while(values.hasNext()) { |
| output.collect(key, values.next()); |
| } |
| } |
| } |