| /** |
| * 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.Private; |
| 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.ApplicationMasterProtocol; |
| import org.apache.hadoop.yarn.util.Records; |
| |
| /** |
| * The response sent by the <code>ResourceManager</code> to a |
| * <code>ApplicationMaster</code> on it's completion. |
| * <p> |
| * The response, includes: |
| * <ul> |
| * <li>A flag which indicates that the application has successfully unregistered |
| * with the RM and the application can safely stop.</li> |
| * </ul> |
| * <p> |
| * Note: The flag indicates whether the application has successfully |
| * unregistered and is safe to stop. The application may stop after the flag is |
| * true. If the application stops before the flag is true then the RM may retry |
| * the application. |
| * |
| * @see ApplicationMasterProtocol#finishApplicationMaster(FinishApplicationMasterRequest) |
| */ |
| @Public |
| @Stable |
| public abstract class FinishApplicationMasterResponse { |
| |
| @Private |
| @Unstable |
| public static FinishApplicationMasterResponse newInstance( |
| boolean isRemovedFromRMStateStore) { |
| FinishApplicationMasterResponse response = |
| Records.newRecord(FinishApplicationMasterResponse.class); |
| response.setIsUnregistered(isRemovedFromRMStateStore); |
| return response; |
| } |
| |
| /** |
| * Get the flag which indicates that the application has successfully |
| * unregistered with the RM and the application can safely stop. |
| * @return true if the application has unregistered with the RM, |
| * false otherwise |
| */ |
| @Public |
| @Stable |
| public abstract boolean getIsUnregistered(); |
| |
| /** |
| * Set the flag which indicates that the application has successfully |
| * unregistered with the RM and the application can safely stop. |
| * @param isUnregistered boolean flag to indicate that the application has |
| * successfully unregistered with the RM |
| */ |
| @Private |
| @Unstable |
| public abstract void setIsUnregistered(boolean isUnregistered); |
| } |