hadoop AbstractRESTRequestInterceptor 源码
haddop AbstractRESTRequestInterceptor 代码
文件路径：/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-router/src/main/java/org/apache/hadoop/yarn/server/router/webapp/AbstractRESTRequestInterceptor.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.router.webapp;
import org.apache.hadoop.conf.Configuration;
/**
* Extends the RequestInterceptor class and provides common functionality which
* can be used and/or extended by other concrete interceptor classes.
*/
public abstract class AbstractRESTRequestInterceptor
implements RESTRequestInterceptor {
private Configuration conf;
private RESTRequestInterceptor nextInterceptor;
/**
* Sets the {@link RESTRequestInterceptor} in the chain.
*/
@Override
public void setNextInterceptor(RESTRequestInterceptor nextInterceptor) {
this.nextInterceptor = nextInterceptor;
}
/**
* Sets the {@link Configuration}.
*/
@Override
public void setConf(Configuration conf) {
this.conf = conf;
if (this.nextInterceptor != null) {
this.nextInterceptor.setConf(conf);
}
}
/**
* Gets the {@link Configuration}.
*/
@Override
public Configuration getConf() {
return this.conf;
}
/**
* Initializes the {@link RESTRequestInterceptor}.
*/
@Override
public void init(String user) {
if (this.nextInterceptor != null) {
this.nextInterceptor.init(user);
}
}
/**
* Disposes the {@link RESTRequestInterceptor}.
*/
@Override
public void shutdown() {
if (this.nextInterceptor != null) {
this.nextInterceptor.shutdown();
}
}
/**
* Gets the next {@link RESTRequestInterceptor} in the chain.
*/
@Override
public RESTRequestInterceptor getNextInterceptor() {
return this.nextInterceptor;
}
}
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