|
1
9 package org.jboss.portal.server.invocation.portal;
10
11 import java.util.Enumeration  ;
12
13 import org.jboss.portal.server.Component;
14 import org.jboss.portal.server.Instance;
15 import org.jboss.portal.server.PortalRequest;
16 import org.jboss.portal.server.PortalServer;
17 import org.jboss.portal.server.ServerObject;
18 import org.jboss.portal.server.Window;
19 import org.jboss.portal.server.WindowContext;
20 import org.jboss.portal.server.PortalResponse;
21 import org.jboss.portal.server.WindowURL;
22 import org.jboss.portal.server.invocation.AttachmentKey;
23 import org.jboss.portal.server.invocation.Interceptor;
24 import org.jboss.portal.server.invocation.Invocation;
25 import org.jboss.portal.server.invocation.InvocationType;
26 import org.jboss.portal.server.output.RedirectionResult;
27 import org.jboss.portal.server.output.Result;
28 import org.jboss.portal.server.output.UnavailableResult;
29 import org.jboss.portal.server.output.StreamResult;
30 import org.jboss.portal.server.output.ActionResult;
31 import org.jboss.portal.server.output.NoResult;
32 import org.jboss.portal.server.output.HTTPRedirectionResult;
33 import org.jboss.portal.server.user.UserContext;
34 import org.jboss.portal.server.util.Properties;
35 import org.jboss.portal.server.util.Parameters;
36
37
41 public class TargetInterceptor implements Interceptor
42 {
43
44 private boolean redirect = false;
45
46 public Object invoke(Invocation invocation)
47 {
48 PortalRequest req = (PortalRequest)invocation.getAttachment(AttachmentKey.PORTAL_REQUEST);
49 PortalResponse resp = (PortalResponse)invocation.getAttachment(AttachmentKey.PORTAL_RESPONSE);
50 UserContext userContext = (UserContext)invocation.getAttachment(AttachmentKey.USER_CONTEXT);
51
52 Window window = null;
54 Instance instance = null;
55 WindowContext wctx = null;
56
57 Result targetResult = null;
59
60 ServerObject target = req.getTarget();
62 if (target instanceof Window)
63 {
64 window = (Window)target;
65 instance = window.getInstance();
66 wctx = (WindowContext)userContext.getContext(window);
67 targetResult = invokeWindow(invocation, window, wctx, instance);
68 resp.setTargetResult(targetResult);
69 }
70
71 if (targetResult instanceof ActionResult)
73 {
74 ActionResult actionResult = (ActionResult)targetResult;
75 Parameters newParameters = actionResult.getParameters();
76 WindowURL url = (WindowURL)window.createURL();
77 url.setType(WindowURL.TYPE_RENDER);
78 url.setWindowState(actionResult.getWindowState());
79 url.setMode(actionResult.getMode());
80 if (newParameters != null)
81 {
82 for (Enumeration e = newParameters.getParameterNames();e.hasMoreElements();)
83 {
84 String name = (String )e.nextElement();
85 String [] values = actionResult.getParameters().getParameterValues(name);
86 url.setTargetParameter(name, values);
87 }
88 }
89
90 if (redirect)
92 {
93 String location = resp.createURL(url, true);
94 HTTPRedirectionResult redirection = new HTTPRedirectionResult(targetResult.getProducer(), location);
95 resp.setTargetResult(redirection);
96 return null;
97 }
98 else
99 {
100 req.getControlParameters().setParameters(url.getControlParameters());
101 req.getTargetParameters().setParameters(url.getTargetParameters());
102 targetResult = invokeWindow(invocation, window, wctx, instance);
103 resp.setTargetResult(targetResult);
104 }
105 }
106 else if (targetResult instanceof NoResult)
107 {
108 WindowURL url = (WindowURL)window.createURL();
109 url.setType(WindowURL.TYPE_RENDER);
110
111 if (redirect)
113 {
114 String location = resp.createURL(url, true);
115 HTTPRedirectionResult redirection = new HTTPRedirectionResult(targetResult.getProducer(), location);
116 resp.setTargetResult(redirection);
117 return null;
118 }
119 else
120 {
121 req.getControlParameters().setParameters(url.getControlParameters());
122 req.getTargetParameters().setParameters(url.getTargetParameters());
123 targetResult = invokeWindow(invocation, window, wctx, instance);
124 resp.setTargetResult(targetResult);
125 }
126 }
127 else if (targetResult instanceof RedirectionResult)
128 {
129 return null;
131 }
132 else if (targetResult instanceof StreamResult)
133 {
134 return null;
136 }
137 else if (targetResult instanceof UnavailableResult)
138 {
139 try
140 {
141 Component component = instance.getComponent();
143 PortalServer portalServer = component.getServer();
144 portalServer.stop(component.getID());
145 }
146 catch (Exception e)
147 {
148 e.printStackTrace();
149 }
150 }
151
152 invocation.invokeNext();
154
155 return null;
156 }
157
158 private Result invokeWindow(Invocation invocation, Window window, WindowContext wctx, Instance instance)
159 {
160 Component component = instance.getComponent();
161 try
162 {
163 invocation.setAttachment(AttachmentKey.WINDOW_CONTEXT, wctx);
164 invocation.setAttachment(AttachmentKey.WINDOW, window);
165 invocation.setAttachment(AttachmentKey.INVOCATION_TYPE, InvocationType.PROCESS_TARGET);
166 invocation.setAttachment(AttachmentKey.RESPONSE_PROPERTIES, new Properties());
167 Result targetResult = (Result)component.invoke(invocation);
168 return targetResult;
169 }
170 finally
171 {
172 invocation.removeAttachment(AttachmentKey.WINDOW);
173 invocation.removeAttachment(AttachmentKey.WINDOW_CONTEXT);
174 invocation.removeAttachment(AttachmentKey.INVOCATION_TYPE);
175 invocation.removeAttachment(AttachmentKey.RESPONSE_PROPERTIES);
176 }
177 }
178 }
179 |
Popular Tags |
Java API By Example, From Geeks To Geeks.