| /** |
| * 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 intercepter 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; |
| } |
| |
| } |