hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/api/protocolrecords/KillApplicationRequest.java

/**
 * 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.hadoop.yarn.api.protocolrecords;

import org.apache.hadoop.classification.InterfaceAudience.Public;
import org.apache.hadoop.classification.InterfaceStability.Stable;
import org.apache.hadoop.classification.InterfaceStability.Unstable;
import org.apache.hadoop.yarn.api.ApplicationClientProtocol;
import org.apache.hadoop.yarn.api.records.ApplicationId;
import org.apache.hadoop.yarn.util.Records;

/**
 * <p>The request sent by the client to the <code>ResourceManager</code>
 * to abort a submitted application.</p>
 * 
 * <p>The request includes the {@link ApplicationId} of the application to be
 * aborted.</p>
 * 
 * @see ApplicationClientProtocol#forceKillApplication(KillApplicationRequest)
 */
@Public
@Stable
public abstract class KillApplicationRequest {

  @Public
  @Stable 
  public static KillApplicationRequest newInstance(ApplicationId applicationId) {
    KillApplicationRequest request =
        Records.newRecord(KillApplicationRequest.class);
    request.setApplicationId(applicationId);
    return request;
  }

  /**
   * Get the <code>ApplicationId</code> of the application to be aborted.
   * @return <code>ApplicationId</code> of the application to be aborted
   */
  @Public
  @Stable
  public abstract ApplicationId getApplicationId();
  
  @Public
  @Stable
  public abstract void setApplicationId(ApplicationId applicationId);

  /**
   * Get the <em>diagnostics</em> to which the application is being killed.
   * @return <em>diagnostics</em> to which the application is being killed
   */
  @Public
  @Unstable
  public abstract String getDiagnostics();

  /**
   * Set the <em>diagnostics</em> to which the application is being killed.
   * @param diagnostics <em>diagnostics</em> to which the application is being
   *          killed
   */
  @Public
  @Unstable
  public abstract void setDiagnostics(String diagnostics);
}