| /* |
| * 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 static com.google.api.client.util.Base64.decodeBase64; |
| import static org.apache.beam.runners.dataflow.util.Structs.getString; |
| import static org.apache.beam.runners.dataflow.worker.ShuffleSink.parseShuffleKind; |
| import static org.apache.beam.vendor.guava.v20_0.com.google.common.base.Preconditions.checkArgument; |
| |
| import com.google.auto.service.AutoService; |
| import java.util.Map; |
| import javax.annotation.Nullable; |
| import org.apache.beam.runners.dataflow.util.CloudObject; |
| import org.apache.beam.runners.dataflow.worker.util.WorkerPropertyNames; |
| 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.vendor.guava.v20_0.com.google.common.collect.ImmutableMap; |
| |
| /** Creates a {@link ShuffleSink} from a {@link CloudObject} spec. */ |
| public class ShuffleSinkFactory implements SinkFactory { |
| |
| /** A {@link SinkFactory.Registrar} for shuffle sinks. */ |
| @AutoService(SinkFactory.Registrar.class) |
| public static class Registrar implements SinkFactory.Registrar { |
| |
| @Override |
| public Map<String, SinkFactory> factories() { |
| ShuffleSinkFactory factory = new ShuffleSinkFactory(); |
| return ImmutableMap.of( |
| "ShuffleSink", |
| factory, |
| "org.apache.beam.runners.dataflow.worker.runners.worker.ShuffleSink", |
| factory); |
| } |
| } |
| |
| // Findbugs does not correctly understand inheritance + nullability. |
| // |
| // coder & executionContext may be null due to parent class signature, and must be checked, |
| // despite not being nullable here |
| @Override |
| public ShuffleSink<?> create( |
| CloudObject spec, |
| Coder<?> coder, |
| @Nullable PipelineOptions options, |
| DataflowExecutionContext executionContext, |
| DataflowOperationContext operationContext) |
| throws Exception { |
| |
| checkArgument(coder != null, "coder must not be null"); |
| |
| @SuppressWarnings("unchecked") |
| Coder<WindowedValue<Object>> typedCoder = (Coder<WindowedValue<Object>>) coder; |
| |
| return new ShuffleSink<>( |
| options, |
| decodeBase64(getString(spec, WorkerPropertyNames.SHUFFLE_WRITER_CONFIG, null)), |
| parseShuffleKind(getString(spec, WorkerPropertyNames.SHUFFLE_KIND)), |
| typedCoder, |
| (BatchModeExecutionContext) executionContext, |
| operationContext); |
| } |
| } |