hadoop AddApplicationHomeSubClusterResponse 源码
haddop AddApplicationHomeSubClusterResponse 代码
文件路径：/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/main/java/org/apache/hadoop/yarn/server/federation/store/records/AddApplicationHomeSubClusterResponse.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
* <p>
* http://www.apache.org/licenses/LICENSE-2.0
* <p>
* 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.server.federation.store.records;
import org.apache.hadoop.classification.InterfaceAudience.Private;
import org.apache.hadoop.classification.InterfaceStability.Unstable;
import org.apache.hadoop.yarn.util.Records;
/**
* AddApplicationHomeSubClusterResponse contains the answer from the
* {@code FederationApplicationHomeSubClusterStore} to a request to insert a
* newly generated applicationId and its owner.
*
* The response contains application's home sub-cluster as it is stored in the
* {@code FederationApplicationHomeSubClusterStore}. If a mapping for the
* application already existed, the {@code SubClusterId} in this response will
* return the existing mapping which might be different from that in the
* {@code AddApplicationHomeSubClusterRequest}.
*/
@Private
@Unstable
public abstract class AddApplicationHomeSubClusterResponse {
@Private
@Unstable
public static AddApplicationHomeSubClusterResponse newInstance(
SubClusterId homeSubCluster) {
AddApplicationHomeSubClusterResponse response =
Records.newRecord(AddApplicationHomeSubClusterResponse.class);
response.setHomeSubCluster(homeSubCluster);
return response;
}
/**
* Set the home sub-cluster that this application has been assigned to.
*
* @param homeSubCluster the {@link SubClusterId} of this application's home
* sub-cluster
*/
public abstract void setHomeSubCluster(SubClusterId homeSubCluster);
/**
* Get the home sub-cluster that this application has been assigned to. This
* may not match the {@link SubClusterId} in the corresponding response, if
* the mapping for the request's application already existed.
*
* @return the {@link SubClusterId} of this application's home sub-cluster
*/
public abstract SubClusterId getHomeSubCluster();
}
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