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1
9 package org.jboss.portal.server.invocation.component;
10
11 import java.io.IOException  ;
12
13 import javax.servlet.RequestDispatcher ;
14 import javax.servlet.ServletContext ;
15 import javax.servlet.ServletException ;
16 import javax.servlet.http.HttpServletRequest ;
17 import javax.servlet.http.HttpServletResponse ;
18
19 import org.jboss.portal.server.Application;
20 import org.jboss.portal.server.Component;
21 import org.jboss.portal.server.Instance;
22 import org.jboss.portal.server.PortalRequest;
23 import org.jboss.portal.server.PortalResponse;
24 import org.jboss.portal.server.Window;
25 import org.jboss.portal.server.WindowContext;
26 import org.jboss.portal.server.invocation.AttachmentKey;
27 import org.jboss.portal.server.invocation.Interceptor;
28 import org.jboss.portal.server.invocation.Invocation;
29 import org.jboss.portal.server.output.InternalErrorResult;
30 import org.jboss.portal.server.servlet.ServletCommand;
31 import org.jboss.portal.server.servlet.CommandServlet;
32
33
39 public class ContextDispatcherInterceptor implements Interceptor
40 {
41
42 public Object invoke(Invocation invocation)
43 {
44 PortalRequest preq = (PortalRequest)invocation.getAttachment(AttachmentKey.PORTAL_REQUEST);
45 PortalResponse presp = (PortalResponse)invocation.getAttachment(AttachmentKey.PORTAL_RESPONSE);
46
47 Window window = (Window)invocation.getAttachment(AttachmentKey.WINDOW);
49 Instance instance = window.getInstance();
50 Component component = instance.getComponent();
51 Application application = component.getApplication();
52 ServletContext servletContext = application.getServletContext();
53
54 try
55 {
56 preq.setAttribute(ServletCommand.REQ_ATT_KEY, new InvokeNextCommand(invocation));
57 RequestDispatcher switcher = servletContext.getNamedDispatcher("CommandServlet");
58 switcher.include(preq, presp);
59 Object result = preq.getAttribute(ServletCommand.REQ_ATT_KEY);
60 return result;
61 }
62 catch (Exception e)
63 {
64 WindowContext ctx = (WindowContext)invocation.getAttachment(AttachmentKey.WINDOW_CONTEXT);
65 return new InternalErrorResult(ctx, e);
66 }
67 finally
68 {
69 preq.setAttribute(ServletCommand.REQ_ATT_KEY, null);
70 }
71 }
72
73 public static class InvokeNextCommand implements ServletCommand
74 {
75
76 private Invocation invocation;
77
78 public InvokeNextCommand(Invocation invocation)
79 {
80 this.invocation = invocation;
81 }
82
83 public Invocation getInvocation()
84 {
85 return invocation;
86 }
87
88 public Object execute(HttpServletRequest req, HttpServletResponse resp) throws ServletException , IOException
89 {
90 try
91 {
92 invocation.setAttachment(AttachmentKey.DISPATCHED_REQUEST, req);
93 invocation.setAttachment(AttachmentKey.DISPATCHED_RESPONSE, resp);
94 return invocation.invokeNext();
95 }
96 finally
97 {
98 invocation.removeAttachment(AttachmentKey.DISPATCHED_REQUEST);
99 invocation.removeAttachment(AttachmentKey.DISPATCHED_RESPONSE);
100 }
101 }
102 }
103 }
104 |
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