1 /* 2 * $HeadURL: http://svn.apache.org/repos/asf/httpcomponents/httpclient/trunk/module-client/src/main/java/org/apache/http/client/protocol/RequestDefaultHeaders.java $ 3 * $Revision: 653041 $ 4 * $Date: 2008-05-03 03:39:28 -0700 (Sat, 03 May 2008) $ 5 * 6 * ==================================================================== 7 * Licensed to the Apache Software Foundation (ASF) under one 8 * or more contributor license agreements. See the NOTICE file 9 * distributed with this work for additional information 10 * regarding copyright ownership. The ASF licenses this file 11 * to you under the Apache License, Version 2.0 (the 12 * "License"); you may not use this file except in compliance 13 * with the License. You may obtain a copy of the License at 14 * 15 * http://www.apache.org/licenses/LICENSE-2.0 16 * 17 * Unless required by applicable law or agreed to in writing, 18 * software distributed under the License is distributed on an 19 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 20 * KIND, either express or implied. See the License for the 21 * specific language governing permissions and limitations 22 * under the License. 23 * ==================================================================== 24 * 25 * This software consists of voluntary contributions made by many 26 * individuals on behalf of the Apache Software Foundation. For more 27 * information on the Apache Software Foundation, please see 28 * <http://www.apache.org/>. 29 * 30 */ 31 32 package org.apache.http.client.protocol; 33 34 import java.io.IOException; 35 import java.util.Collection; 36 37 import org.apache.http.Header; 38 import org.apache.http.HttpException; 39 import org.apache.http.HttpRequest; 40 import org.apache.http.HttpRequestInterceptor; 41 import org.apache.http.client.params.ClientPNames; 42 import org.apache.http.protocol.HttpContext; 43 44 /** 45 * Request interceptor that adds default request headers. 46 * 47 * @author <a href="mailto:oleg at ural.ru">Oleg Kalnichevski</a> 48 * 49 * @version $Revision: 653041 $ 50 * 51 * @since 4.0 52 */ 53 public class RequestDefaultHeaders implements HttpRequestInterceptor { 54 RequestDefaultHeaders()55 public RequestDefaultHeaders() { 56 super(); 57 } 58 process(final HttpRequest request, final HttpContext context)59 public void process(final HttpRequest request, final HttpContext context) 60 throws HttpException, IOException { 61 if (request == null) { 62 throw new IllegalArgumentException("HTTP request may not be null"); 63 } 64 // Add default headers 65 Collection<?> defHeaders = (Collection<?>) request.getParams().getParameter( 66 ClientPNames.DEFAULT_HEADERS); 67 if (defHeaders != null) { 68 for (Object defHeader : defHeaders) { 69 request.addHeader((Header) defHeader); 70 } 71 } 72 } 73 74 } 75