| /* |
| * 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.beam.runners.dataflow.worker; |
| |
| import java.io.IOException; |
| import javax.annotation.Nullable; |
| import org.apache.beam.runners.dataflow.worker.util.common.worker.ShuffleReadCounterFactory; |
| import org.apache.beam.sdk.coders.Coder; |
| import org.apache.beam.sdk.options.PipelineOptions; |
| import org.apache.beam.sdk.util.WindowedValue; |
| import org.apache.beam.sdk.values.KV; |
| import org.apache.beam.vendor.guava.v20_0.com.google.common.annotations.VisibleForTesting; |
| |
| /** |
| * A source that reads from a shuffled dataset and yields key-grouped data. Like {@link |
| * GroupingShuffleReader}, except that it injects an error in the counter tracking how many bytes |
| * are read. This class is solely used to test the shuffle sanity check mechanism. |
| * |
| * @param <K> the type of the keys read from the shuffle |
| * @param <V> the type of the values read from the shuffle |
| */ |
| @VisibleForTesting |
| class GroupingShuffleReaderWithFaultyBytesReadCounter<K, V> extends GroupingShuffleReader<K, V> { |
| public GroupingShuffleReaderWithFaultyBytesReadCounter( |
| PipelineOptions options, |
| byte[] shuffleReaderConfig, |
| @Nullable String startShufflePosition, |
| @Nullable String stopShufflePosition, |
| Coder<WindowedValue<KV<K, Iterable<V>>>> coder, |
| BatchModeExecutionContext executionContext, |
| DataflowOperationContext operationContext, |
| boolean sortValues) |
| throws Exception { |
| super( |
| options, |
| shuffleReaderConfig, |
| startShufflePosition, |
| stopShufflePosition, |
| coder, |
| executionContext, |
| operationContext, |
| ShuffleReadCounterFactory.INSTANCE, |
| sortValues); |
| } |
| |
| @Override |
| public GroupingShuffleReaderIterator<K, V> iterator() throws IOException { |
| // This causes perOperationPerDatasetBytesCounter to be initialized. |
| GroupingShuffleReaderIterator<K, V> it = super.iterator(); |
| |
| // Inject an error in the counter tracking how many bytes are read |
| // from this reader's data source. |
| perOperationPerDatasetBytesCounter.addValue(1L); |
| return it; |
| } |
| } |