| /** |
| * 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 com.datatorrent.lib.io.fs; |
| |
| import java.io.IOException; |
| import java.util.Collections; |
| |
| import org.junit.Assert; |
| import org.junit.Before; |
| import org.junit.Test; |
| import org.mockito.Mock; |
| import org.mockito.MockitoAnnotations; |
| |
| import org.apache.commons.lang.mutable.MutableLong; |
| |
| import com.datatorrent.api.Partitioner.Partition; |
| import com.datatorrent.api.Stats.OperatorStats; |
| import com.datatorrent.api.StatsListener.BatchedOperatorStats; |
| import com.datatorrent.api.StatsListener.Response; |
| import com.datatorrent.lib.counters.BasicCounters; |
| import com.datatorrent.lib.io.fs.AbstractFileInputOperator.FailedFile; |
| import com.datatorrent.lib.io.fs.AbstractFileInputOperator.FileCounters; |
| |
| import static org.mockito.Matchers.any; |
| import static org.mockito.Mockito.when; |
| |
| public class AbstractThroughputFileInputOperatorTest |
| { |
| private AbstractThroughputFileInputOperator<String> underTest; |
| @Mock |
| private Partition<AbstractFileInputOperator<String>> mockPartition; |
| @Mock |
| private BatchedOperatorStats mockBatchStats; |
| @Mock |
| private OperatorStats mockOperatorStats; |
| @Mock |
| private BasicCounters<MutableLong> fileCountersMock; |
| @Mock |
| private MutableLong fileCounterMock; |
| |
| @Before |
| public void setup() |
| { |
| underTest = new ThroughputFileInputOperator(); |
| MockitoAnnotations.initMocks(this); |
| |
| when(mockPartition.getPartitionedInstance()).thenReturn(underTest); |
| } |
| |
| @Test |
| public void testInitialPartitioning() |
| { |
| underTest.setPartitionCount(4); |
| underTest.setPreferredMaxPendingFilesPerOperator(6); |
| |
| for (int i = 0; i < 74; i++) { |
| underTest.pendingFiles.add("file-" + i); |
| } |
| |
| int partitioncount = underTest.getNewPartitionCount(Collections.singleton(mockPartition), null); |
| Assert.assertEquals(4, partitioncount); |
| } |
| |
| @Test |
| public void testProcessStats() throws Exception |
| { |
| underTest.setPartitionCount(4); |
| underTest.setPreferredMaxPendingFilesPerOperator(10); |
| |
| for (int i = 0; i < 21; i++) { |
| underTest.pendingFiles.add("file-" + i); |
| } |
| |
| mockOperatorStats.counters = fileCountersMock; |
| when(mockPartition.getStats()).thenReturn(mockBatchStats); |
| when(mockBatchStats.getLastWindowedStats()).thenReturn(Collections.singletonList(mockOperatorStats)); |
| when(fileCountersMock.getCounter(any(FileCounters.class))).thenReturn(fileCounterMock); |
| when(fileCounterMock.getValue()).thenReturn(20L); |
| |
| Response response = underTest.processStats(mockBatchStats); |
| |
| Assert.assertTrue(response.repartitionRequired); |
| } |
| |
| @Test |
| public void testRepartitionNotRequired() |
| { |
| underTest.setPartitionCount(4); |
| underTest.setPreferredMaxPendingFilesPerOperator(10); |
| underTest.setRepartitionInterval(60 * 1000); |
| underTest.lastRepartition = System.currentTimeMillis(); |
| |
| for (int i = 0; i < 10; i++) { |
| underTest.pendingFiles.add("file-" + i); |
| } |
| |
| mockOperatorStats.counters = fileCountersMock; |
| when(mockPartition.getStats()).thenReturn(mockBatchStats); |
| when(mockBatchStats.getLastWindowedStats()).thenReturn(Collections.singletonList(mockOperatorStats)); |
| when(fileCountersMock.getCounter(any(FileCounters.class))).thenReturn(fileCounterMock); |
| when(fileCounterMock.getValue()).thenReturn(10L); |
| |
| Response response = underTest.processStats(mockBatchStats); |
| |
| Assert.assertFalse(response.repartitionRequired); |
| } |
| |
| @Test |
| public void testRepartitioningForPendingFiles() |
| { |
| underTest.setPartitionCount(4); |
| underTest.setPreferredMaxPendingFilesPerOperator(10); |
| |
| for (int i = 0; i < 21; i++) { |
| underTest.pendingFiles.add("file-" + i); |
| } |
| |
| when(mockPartition.getStats()).thenReturn(mockBatchStats); |
| int partitioncount = underTest.getNewPartitionCount(Collections.singleton(mockPartition), null); |
| Assert.assertEquals(3, partitioncount); |
| } |
| |
| @Test |
| public void testRepartitioningForFailedFiles() |
| { |
| underTest.setPartitionCount(6); |
| underTest.setPreferredMaxPendingFilesPerOperator(6); |
| |
| for (int i = 0; i < 21; i++) { |
| underTest.failedFiles.add(new FailedFile("file-" + i, 0)); |
| } |
| |
| when(mockPartition.getStats()).thenReturn(mockBatchStats); |
| int partitioncount = underTest.getNewPartitionCount(Collections.singleton(mockPartition), null); |
| Assert.assertEquals(4, partitioncount); |
| } |
| |
| @Test |
| public void testRepartitioningForUnfinishedFiles() |
| { |
| underTest.setPartitionCount(5); |
| underTest.setPreferredMaxPendingFilesPerOperator(3); |
| |
| for (int i = 0; i < 21; i++) { |
| underTest.pendingFiles.add("file-" + i); |
| } |
| |
| when(mockPartition.getStats()).thenReturn(mockBatchStats); |
| int partitioncount = underTest.getNewPartitionCount(Collections.singleton(mockPartition), null); |
| Assert.assertEquals(5, partitioncount); |
| } |
| |
| public static class ThroughputFileInputOperator extends AbstractThroughputFileInputOperator<String> |
| { |
| @Override |
| protected String readEntity() throws IOException |
| { |
| return "testData"; |
| } |
| |
| @Override |
| protected void emit(String tuple) |
| { |
| } |
| } |
| } |