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1   /*
2    * $Id: $
3    *
4    * Licensed to the Apache Software Foundation (ASF) under one
5    * or more contributor license agreements.  See the NOTICE file
6    * distributed with this work for additional information
7    * regarding copyright ownership.  The ASF licenses this file
8    * to you under the Apache License, Version 2.0 (the
9    * "License"); you may not use this file except in compliance
10   * with the License.  You may obtain a copy of the License at
11   *
12   *  http://www.apache.org/licenses/LICENSE-2.0
13   *
14   * Unless required by applicable law or agreed to in writing,
15   * software distributed under the License is distributed on an
16   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17   * KIND, either express or implied.  See the License for the
18   * specific language governing permissions and limitations
19   * under the License.
20   */
21  package org.apache.struts2.portlet.servlet;
22  
23  import java.io.IOException;
24  
25  import javax.portlet.PortletException;
26  import javax.portlet.PortletRequest;
27  import javax.portlet.PortletRequestDispatcher;
28  import javax.portlet.PortletResponse;
29  import javax.portlet.RenderRequest;
30  import javax.portlet.RenderResponse;
31  import javax.servlet.RequestDispatcher;
32  import javax.servlet.ServletException;
33  import javax.servlet.ServletRequest;
34  import javax.servlet.ServletResponse;
35  
36  public class PortletServletRequestDispatcher implements RequestDispatcher {
37  
38  	private PortletRequestDispatcher portletRequestDispatcher;
39  	
40  	public PortletServletRequestDispatcher(PortletRequestDispatcher portletRequestDispatcher) {
41  		this.portletRequestDispatcher = portletRequestDispatcher;
42  	}
43  
44  	public void forward(ServletRequest request, ServletResponse response) throws ServletException, IOException {
45  		throw new IllegalStateException("Not allowed in a portlet");
46  		
47  	}
48  
49  	public void include(ServletRequest request, ServletResponse response) throws ServletException, IOException {
50  		if(request instanceof PortletServletRequest && response instanceof PortletServletResponse) {
51  			PortletRequest req = ((PortletServletRequest)request).getPortletRequest();
52  			PortletResponse resp = ((PortletServletResponse)response).getPortletResponse();
53  			if(req instanceof RenderRequest && resp instanceof RenderResponse) {
54  				try {
55  					portletRequestDispatcher.include((RenderRequest)req, (RenderResponse)resp);
56  				}
57  				catch(PortletException e) {
58  					throw new ServletException(e);
59  				}
60  			}
61  			else {
62  				throw new IllegalStateException("Can only be invoked in the render phase");
63  			}
64  		}
65  		else {
66  			throw new IllegalStateException("Can only be invoked in a portlet");
67  		}
68  	}
69  
70  }