/*******************************************************************************
*
* Struts2-Conversation-Plugin - An Open Source Conversation- and Flow-Scope Solution for Struts2-based Applications
* =================================================================================================================
*
* Copyright (C) 2012 by Rees Byars
* http://code.google.com/p/struts2-conversation/
*
* **********************************************************************************************************************
*
* Licensed 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.
*
* **********************************************************************************************************************
*
* $Id: ConversationRedirectResult.java reesbyars $
******************************************************************************/
package com.google.code.rees.scope.struts2;
import com.google.code.rees.scope.conversation.ConversationAdapter;
import com.google.code.rees.scope.util.RedirectUtil;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionInvocation;
import com.opensymphony.xwork2.Result;
import org.apache.struts2.ServletActionContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.Iterator;
import java.util.Map;
/**
*
* @author rees.byars
* @author pepsifan81
*
*/
public class ConversationPrepareRedirectResult implements Result {
@Override
public void execute(ActionInvocation actionInvocation) throws Exception {
ActionContext context = actionInvocation.getInvocationContext();
HttpServletRequest request = (HttpServletRequest) context.get(ServletActionContext.HTTP_REQUEST);
HttpServletResponse response = (HttpServletResponse) context.get(ServletActionContext.HTTP_RESPONSE);
String location = createRedirectLocation(request);
// append the conversation id to the redirect url
String locationWithConversationIds = RedirectUtil.getUrlParamString(location, ConversationAdapter.getAdapter().getViewContext());
String finalLocation = response.encodeRedirectURL(locationWithConversationIds);
response.sendRedirect(finalLocation);
}
/**
* Recreates the URL from the request
*/
private static String createRedirectLocation(HttpServletRequest request) {
StringBuffer location = request.getRequestURL();
Map<String, String[]> paramMap = request.getParameterMap();
if (paramMap.isEmpty()) {
return location.toString();
}
StringBuilder sb = new StringBuilder();
sb.append(location.toString());
sb.append("?");
for (Iterator<Map.Entry<String, String[]>> iterator = paramMap.entrySet().iterator(); iterator.hasNext();) {
Map.Entry<String, String[]> entry = iterator.next();
sb.append(entry.getKey()).append("=").append(entry.getValue()[0]);
if (iterator.hasNext()) {
sb.append("&");
}
}
return sb.toString();
}
}