PipeMapRunner.java
上传用户:quxuerui
上传日期:2018-01-08
资源大小:41811k
文件大小:1k
- /**
- * 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.streaming;
- import org.apache.hadoop.mapred.MapRunner;
- import org.apache.hadoop.mapred.Reporter;
- import org.apache.hadoop.mapred.RecordReader;
- import org.apache.hadoop.mapred.OutputCollector;
- import java.io.IOException;
- import org.apache.hadoop.util.ReflectionUtils;
- public class PipeMapRunner<K1, V1, K2, V2> extends MapRunner<K1, V1, K2, V2> {
- public void run(RecordReader<K1, V1> input, OutputCollector<K2, V2> output,
- Reporter reporter)
- throws IOException {
- PipeMapper pipeMapper = (PipeMapper)getMapper();
- pipeMapper.startOutputThreads(output, reporter);
- super.run(input, output, reporter);
- }
- }