hadoop ContextProcessor 源码
haddop ContextProcessor 代码
文件路径：/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/preprocessor/ContextProcessor.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.server.resourcemanager.preprocessor;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
import org.apache.hadoop.yarn.api.records.ApplicationId;
import org.apache.hadoop.yarn.api.records.ApplicationSubmissionContext;
/**
* This is the interface providing functionality to process
* application submission context.
*/
@InterfaceAudience.Private
@InterfaceStability.Unstable
public interface ContextProcessor {
/**
* It will enrich the application submission context with value provided.
* @param host Address of the host from where application launched.
* @param value Value to be filled in ApplicationSubmissionContext.
* @param applicationId Application Id of the application.
* @param submissionContext Context of the application.
*/
void process(String host, String value, ApplicationId applicationId,
ApplicationSubmissionContext submissionContext);
}
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