001    /**
002     * Licensed to the Apache Software Foundation (ASF) under one or more
003     * contributor license agreements.  See the NOTICE file distributed with
004     * this work for additional information regarding copyright ownership.
005     * The ASF licenses this file to You under the Apache License, Version 2.0
006     * (the "License"); you may not use this file except in compliance with
007     * the License.  You may obtain a copy of the License at
008     *
009     *      http://www.apache.org/licenses/LICENSE-2.0
010     *
011     * Unless required by applicable law or agreed to in writing, software
012     * distributed under the License is distributed on an "AS IS" BASIS,
013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014     * See the License for the specific language governing permissions and
015     * limitations under the License.
016     */
017    package org.apache.camel.component.http4;
018    
019    import java.util.ArrayList;
020    import java.util.List;
021    
022    import org.apache.http.client.HttpClient;
023    
024    public class CompositeHttpConfigurer implements HttpClientConfigurer {
025    
026        private final List<HttpClientConfigurer> configurers = new ArrayList<HttpClientConfigurer>();
027    
028        public void addConfigurer(HttpClientConfigurer configurer) {
029            if (configurer != null) {
030                configurers.add(configurer);
031            }
032        }
033    
034        public void removeConfigurer(HttpClientConfigurer configurer) {
035            configurers.remove(configurer);
036        }
037    
038        public void configureHttpClient(HttpClient client) {
039            for (HttpClientConfigurer configurer : configurers) {
040                configurer.configureHttpClient(client);
041            }
042        }
043    
044        public static CompositeHttpConfigurer combineConfigurers(HttpClientConfigurer oldConfigurer, HttpClientConfigurer newConfigurer) {
045            if (oldConfigurer instanceof CompositeHttpConfigurer) {
046                ((CompositeHttpConfigurer) oldConfigurer).addConfigurer(newConfigurer);
047                return (CompositeHttpConfigurer) oldConfigurer;
048            } else {
049                CompositeHttpConfigurer answer = new CompositeHttpConfigurer();
050                answer.addConfigurer(newConfigurer);
051                answer.addConfigurer(oldConfigurer);
052                return answer;
053            }
054        }
055    
056    }