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/*
 * 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.flink;

import com.google.auto.service.AutoService;
import com.google.common.collect.ImmutableList;
import org.apache.beam.sdk.PipelineRunner;
import org.apache.beam.sdk.options.PipelineOptions;
import org.apache.beam.sdk.options.PipelineOptionsRegistrar;
import org.apache.beam.sdk.runners.PipelineRunnerRegistrar;


/**
 * AutoService registrar - will register FlinkRunner and FlinkOptions
 * as possible pipeline runner services.
 *
 * It ends up in META-INF/services and gets picked up by Beam.
 *
 */
public class FlinkRunnerRegistrar {
  private FlinkRunnerRegistrar() { }

  /**
   * Pipeline runner registrar.
   */
  @AutoService(PipelineRunnerRegistrar.class)
  public static class Runner implements PipelineRunnerRegistrar {
    @Override
    public Iterable>> getPipelineRunners() {
      return ImmutableList.>>of(
          FlinkRunner.class,
          TestFlinkRunner.class);
    }
  }

  /**
   * Pipeline options registrar.
   */
  @AutoService(PipelineOptionsRegistrar.class)
  public static class Options implements PipelineOptionsRegistrar {
    @Override
    public Iterable> getPipelineOptions() {
      return ImmutableList.>of(FlinkPipelineOptions.class);
    }
  }
}