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.aspects.controller;
23:
24: import org.jboss.portal.common.invocation.InvocationException;
25: import org.jboss.portal.core.controller.ControllerCommand;
26: import org.jboss.portal.core.controller.ControllerContext;
27: import org.jboss.portal.core.controller.ControllerInterceptor;
28: import org.jboss.portal.core.controller.ControllerResponse;
29: import org.jboss.portal.core.model.portal.navstate.PortalObjectNavigationalStateContext;
30:
31: /**
32: * Apply navigational state changes.
33: *
34: * @author <a href="mailto:julien@jboss.org">Julien Viet</a>
35: * @version $Revision: 8786 $
36: */
37: public class NavigationalStateInterceptor extends ControllerInterceptor {
38: public ControllerResponse invoke(ControllerCommand cmd)
39: throws Exception, InvocationException {
40: ControllerResponse ret = (ControllerResponse) cmd.invokeNext();
41:
42: // We commit the nav state changes only for the classic controller at the base of the pipeline
43: ControllerContext controllerContext = cmd
44: .getControllerContext();
45: if (controllerContext.getDepth() == 1
46: && controllerContext.getType() == ControllerContext.CLASSIC_TYPE) {
47: PortalObjectNavigationalStateContext ctx = (PortalObjectNavigationalStateContext) controllerContext
48: .getAttributeResolver(ControllerCommand.NAVIGATIONAL_STATE_SCOPE);
49: ctx.applyChanges();
50: }
51:
52: //
53: return ret;
54: }
55: }
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