/lib/src/org/apache/http/protocol/ResponseDate.java
Java | 66 lines | 25 code | 8 blank | 33 comment | 3 complexity | 7a088f7df321b604ca47f6d60f6de395 MD5 | raw file
Possible License(s): GPL-3.0
1/* 2 * ==================================================================== 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * ==================================================================== 20 * 21 * This software consists of voluntary contributions made by many 22 * individuals on behalf of the Apache Software Foundation. For more 23 * information on the Apache Software Foundation, please see 24 * <http://www.apache.org/>. 25 * 26 */ 27 28package org.apache.http.protocol; 29 30import java.io.IOException; 31 32import org.apache.http.HttpException; 33import org.apache.http.HttpResponse; 34import org.apache.http.HttpResponseInterceptor; 35import org.apache.http.HttpStatus; 36 37/** 38 * ResponseDate is responsible for adding <code>Date<c/ode> header to the 39 * outgoing responses. This interceptor is recommended for server side protocol 40 * processors. 41 * 42 * @since 4.0 43 */ 44public class ResponseDate implements HttpResponseInterceptor { 45 46 private static final HttpDateGenerator DATE_GENERATOR = new HttpDateGenerator(); 47 48 public ResponseDate() { 49 super(); 50 } 51 52 public void process(final HttpResponse response, final HttpContext context) 53 throws HttpException, IOException { 54 if (response == null) { 55 throw new IllegalArgumentException 56 ("HTTP response may not be null."); 57 } 58 int status = response.getStatusLine().getStatusCode(); 59 if ((status >= HttpStatus.SC_OK) && 60 !response.containsHeader(HTTP.DATE_HEADER)) { 61 String httpdate = DATE_GENERATOR.getCurrentDate(); 62 response.setHeader(HTTP.DATE_HEADER, httpdate); 63 } 64 } 65 66}