content: /*
   * The Alluxio Open Foundation licenses this work under the Apache License, version 2.0
   * (the "License"). You may not use this work except in compliance with the License, which is
   * available at www.apache.org/licenses/LICENSE-2.0
   *
   * This software is distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
   * either express or implied, as more fully set forth in the License.
   *
   * See the NOTICE file distributed with this work for information regarding copyright ownership.
   */
  
  package alluxio.job.plan;
  
  import alluxio.collections.Pair;
  import alluxio.job.CrashPlanConfig;
  import alluxio.job.RunTaskContext;
  import alluxio.job.SelectExecutorsContext;
  import alluxio.job.util.SerializableVoid;
  import alluxio.wire.WorkerInfo;
  
  import java.util.Collections;
  import java.util.IdentityHashMap;
  import java.util.List;
  import java.util.Set;
  
  /**
   * This definition of a plan that does nothing.
   */
  public class CrashPlanDefinition
      extends AbstractVoidPlanDefinition<CrashPlanConfig, SerializableVoid> {
  
    public CrashPlanDefinition() {}
  
    @Override
    public Class<CrashPlanConfig> getJobConfigClass() {
      return CrashPlanConfig.class;
    }
  
    @Override
    public Set<Pair<WorkerInfo, SerializableVoid>> selectExecutors(CrashPlanConfig config,
        List<WorkerInfo> jobWorkerInfoList, SelectExecutorsContext selectExecutorsContext)
        throws Exception {
      Set<Pair<WorkerInfo, SerializableVoid>> executors =
          Collections.newSetFromMap(new IdentityHashMap<>());
      executors.add(new Pair<>(jobWorkerInfoList.get(0), null));
      return executors;
    }
  
    @Override
    public SerializableVoid runTask(CrashPlanConfig config, SerializableVoid args,
                                    RunTaskContext runTaskContext) throws Exception {
      throw new IllegalStateException("CrashPlanConfig always crashes");
    }
  }
  