content: /*
   * 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.sdk.util.Preconditions.checkArgumentNotNull;
  
  import com.google.auto.service.AutoService;
  import java.util.Map;
  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.values.WindowedValue;
  import org.apache.beam.vendor.guava.v32_1_2_jre.com.google.common.collect.ImmutableMap;
  import org.checkerframework.checker.nullness.qual.Nullable;
  
  /** Creates a {@link ShuffleSink} from a {@link CloudObject} spec. */
  @SuppressWarnings({
    "rawtypes", // TODO(https://github.com/apache/beam/issues/20447)
    "nullness" // TODO(https://github.com/apache/beam/issues/20497)
  })
  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);
      }
    }
  
    @Override
    public ShuffleSink<?> create(
        CloudObject spec,
        @Nullable Coder<?> coder,
        @Nullable PipelineOptions options,
        @Nullable DataflowExecutionContext executionContext,
        DataflowOperationContext operationContext)
        throws Exception {
  
      coder = checkArgumentNotNull(coder);
      executionContext = checkArgumentNotNull(executionContext);
  
      @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);
    }
  }
  