| /** |
| * 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.mapred; |
| |
| import static org.mockito.Mockito.mock; |
| import static org.mockito.Mockito.never; |
| import static org.mockito.Mockito.times; |
| import static org.mockito.Mockito.verify; |
| |
| import java.io.DataInput; |
| import java.io.DataOutput; |
| import java.io.IOException; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.mapred.Counters.Counter; |
| import org.apache.hadoop.mapred.IFile.Writer; |
| import org.apache.hadoop.mapred.Task.CombineOutputCollector; |
| import org.apache.hadoop.mapred.Task.TaskReporter; |
| import org.junit.Test; |
| |
| public class TestCombineOutputCollector { |
| private CombineOutputCollector<String, Integer> coc; |
| |
| Counters.Counter outCounter = new Counters.Counter() { |
| |
| @Override |
| public void setValue(long value) { |
| // TODO Auto-generated method stub |
| |
| } |
| |
| @Override |
| public void setDisplayName(String displayName) { |
| // TODO Auto-generated method stub |
| |
| } |
| |
| @Override |
| public void increment(long incr) { |
| // TODO Auto-generated method stub |
| |
| } |
| |
| @Override |
| public long getValue() { |
| // TODO Auto-generated method stub |
| return 0; |
| } |
| |
| @Override |
| public String getName() { |
| // TODO Auto-generated method stub |
| return null; |
| } |
| |
| @Override |
| public String getDisplayName() { |
| // TODO Auto-generated method stub |
| return null; |
| } |
| |
| @Override |
| public String makeEscapedCompactString() { |
| // TODO Auto-generated method stub |
| return null; |
| } |
| |
| @Override |
| public long getCounter() { |
| // TODO Auto-generated method stub |
| return 0; |
| } |
| |
| @Override |
| public boolean contentEquals(Counter counter) { |
| // TODO Auto-generated method stub |
| return false; |
| } |
| |
| @Override |
| public void write(DataOutput out) throws IOException { |
| } |
| |
| @Override |
| public void readFields(DataInput in) throws IOException { |
| } |
| }; |
| |
| @Test |
| public void testCustomCollect() throws Throwable { |
| //mock creation |
| TaskReporter mockTaskReporter = mock(TaskReporter.class); |
| Writer<String, Integer> mockWriter = mock(Writer.class); |
| |
| Configuration conf = new Configuration(); |
| conf.set("mapred.combine.recordsBeforeProgress", "2"); |
| |
| coc = new CombineOutputCollector<String, Integer>(outCounter, mockTaskReporter, conf); |
| coc.setWriter(mockWriter); |
| verify(mockTaskReporter, never()).progress(); |
| |
| coc.collect("dummy", 1); |
| verify(mockTaskReporter, never()).progress(); |
| |
| coc.collect("dummy", 2); |
| verify(mockTaskReporter, times(1)).progress(); |
| } |
| |
| @Test |
| public void testDefaultCollect() throws Throwable { |
| //mock creation |
| TaskReporter mockTaskReporter = mock(TaskReporter.class); |
| Writer<String, Integer> mockWriter = mock(Writer.class); |
| |
| Configuration conf = new Configuration(); |
| |
| coc = new CombineOutputCollector<String, Integer>(outCounter, mockTaskReporter, conf); |
| coc.setWriter(mockWriter); |
| verify(mockTaskReporter, never()).progress(); |
| |
| for(int i = 0; i < Task.DEFAULT_COMBINE_RECORDS_BEFORE_PROGRESS; i++) { |
| coc.collect("dummy", i); |
| } |
| verify(mockTaskReporter, times(1)).progress(); |
| for(int i = 0; i < Task.DEFAULT_COMBINE_RECORDS_BEFORE_PROGRESS; i++) { |
| coc.collect("dummy", i); |
| } |
| verify(mockTaskReporter, times(2)).progress(); |
| } |
| } |