01: /******************************************************************************
02: * JBoss, a division of Red Hat *
03: * Copyright 2006, Red Hat Middleware, LLC, and individual *
04: * contributors as indicated by the @authors tag. See the *
05: * copyright.txt in the distribution for a full listing of *
06: * individual contributors. *
07: * *
08: * This is free software; you can redistribute it and/or modify it *
09: * under the terms of the GNU Lesser General Public License as *
10: * published by the Free Software Foundation; either version 2.1 of *
11: * the License, or (at your option) any later version. *
12: * *
13: * This software is distributed in the hope that it will be useful, *
14: * but WITHOUT ANY WARRANTY; without even the implied warranty of *
15: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
16: * Lesser General Public License for more details. *
17: * *
18: * You should have received a copy of the GNU Lesser General Public *
19: * License along with this software; if not, write to the Free *
20: * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA *
21: * 02110-1301 USA, or see the FSF site: http://www.fsf.org. *
22: ******************************************************************************/package org.jboss.portal.core.impl.api.user;
23:
24: import org.jboss.portal.common.invocation.InvocationException;
25: import org.jboss.portal.server.ServerInterceptor;
26: import org.jboss.portal.server.ServerInvocation;
27:
28: import javax.servlet.http.HttpServletRequest;
29: import javax.servlet.http.HttpSession;
30: import java.security.Principal;
31:
32: /**
33: * Trigger user events in the event bridge.
34: *
35: * @author <a href="mailto:julien@jboss.org">Julien Viet</a>
36: * @version $Revision: 8786 $
37: */
38: public class UserEventBridgeTriggerInterceptor extends
39: ServerInterceptor {
40: protected void invoke(ServerInvocation invocation)
41: throws Exception, InvocationException {
42: HttpServletRequest req = invocation.getServerContext()
43: .getClientRequest();
44: HttpSession session = req.getSession(false);
45: if (session != null) {
46: Principal userPrincipal = req.getUserPrincipal();
47: if (userPrincipal != null) {
48: if (session.getAttribute("PRINCIPAL_TOKEN") == null) {
49: session.setAttribute("PRINCIPAL_TOKEN",
50: userPrincipal.getName());
51: }
52: } else {
53: if (session.getAttribute("PRINCIPAL_TOKEN") != null) {
54: session.removeAttribute("PRINCIPAL_TOKEN");
55: }
56: }
57: }
58:
59: //
60: invocation.invokeNext();
61: }
62: }
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