001/** 002 * Copyright 2014 Tampere University of Technology, Pori Department 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016package core.tut.pori.http; 017 018import java.io.IOException; 019 020import javax.servlet.http.HttpServletResponse; 021 022import org.apache.log4j.Logger; 023 024/** 025 * Simple Response class for sending a redirect to a provided URL 026 * 027 */ 028public class RedirectResponse extends Response{ 029 private static final Logger LOGGER = Logger.getLogger(RedirectResponse.class); 030 private String _redirectUrl = null; 031 032 @Override 033 public void writeTo(HttpServletResponse response) { 034 try { 035 if(_redirectUrl == null){ 036 LOGGER.debug("No redirect URL given, will not redirect..."); 037 super.writeTo(response); 038 }else{ 039 response.sendRedirect(_redirectUrl); 040 } 041 } catch (IOException ex) { 042 LOGGER.error(ex, ex); 043 setStatus(Status.INTERNAL_SERVER_ERROR); 044 super.writeTo(response); 045 } 046 } 047 048 /** 049 * for serialization 050 */ 051 public RedirectResponse(){ 052 // nothing needed 053 } 054 055 /** 056 * 057 * @param url where to redirect 058 */ 059 public RedirectResponse(String url){ 060 _redirectUrl = url; 061 } 062}