/*---------------- FILE HEADER ------------------------------------------
This file is part of deegree.
Copyright (C) 2001-2006 by:
EXSE, Department of Geography, University of Bonn
http://www.giub.uni-bonn.de/deegree/
lat/lon GmbH
http://www.lat-lon.de
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Contact:
Andreas Poth
lat/lon GmbH
Aennchenstr. 19
53177 Bonn
Germany
E-Mail: poth@lat-lon.de
Prof. Dr. Klaus Greve
Department of Geography
University of Bonn
Meckenheimer Allee 166
53115 Bonn
Germany
E-Mail: greve@giub.uni-bonn.de
---------------------------------------------------------------------------*/
package org.deegree.portal.portlet.modules.actions;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Enumeration;
import javax.servlet.http.HttpSession;
import javax.xml.parsers.ParserConfigurationException;
import org.deegree.framework.xml.XMLFragment;
import org.deegree.portal.context.ViewContext;
import org.deegree.portal.context.XMLFactory;
/**
* This class can be used within listener classes that will be
* called if a user logs out from a portal. All contexts used at
* this moment will be stored in the users WMC directory having
* filenames starting with 'VIEWCONTEXT'.<BR>
* At the moment a concrete listener is available for Jetspeed
* 1.6 @see org.deegree.portal.portlet.modules.actions.IGeoJetspeed16LogoutUser
*
*
* @version $Revision: 1.4 $
* @author <a href="mailto:poth@lat-lon.de">Andreas Poth</a>
* @author last edited by: $Author: poth $
*
* @version 1.0. $Revision: 1.4 $, $Date: 2006/10/12 15:46:19 $
*
* @since 2.0
*/
class LogoutUser {
/**
*
* @param dir
* @param ses
* @throws IOException
* @throws ParserConfigurationException
*/
void storeCurrentContexts( File dir, HttpSession ses )
throws ParserConfigurationException, IOException {
Enumeration en = ses.getAttributeNames();
// because a porlat may use more than one web map context
// parallel at different map windows we must iterate over
// all session attributes indicating a WMC currently in use
if ( en != null ) {
while ( en.hasMoreElements() ) {
String name = (String) en.nextElement();
Object val = ses.getAttribute( name );
if ( val != null && val instanceof ViewContext
&& name.indexOf( AbstractPortletPerform.CURRENT_WMC ) > -1 ) {
storeContext( dir, name, (ViewContext) val );
}
}
}
}
/**
* stores the passed web map context as loggedout WMC into
* the current users WMC directory
*
* @param dir
* @param name
* @param context
* @throws ParserConfigurationException
* @throws IOException
*/
private void storeContext( File dir, String name, ViewContext context )
throws ParserConfigurationException, IOException {
XMLFragment xml = XMLFactory.export( context );
File file = new File( dir.getAbsolutePath() + '/' + name + ".xml" );
FileOutputStream fos = new FileOutputStream( file );
xml.write( fos );
fos.close();
}
}
/* ********************************************************************
Changes to this class. What the people have been up to:
$Log: LogoutUser.java,v $
Revision 1.4 2006/10/12 15:46:19 poth
adaption required to avoid allocating larger amounts of memory for each user session when using several WMC documents
Revision 1.3 2006/07/21 07:39:34 poth
check for invalid user session added
Revision 1.2 2006/07/12 14:33:27 poth
comment added
Revision 1.1 2006/07/12 14:15:44 poth
initial login of basis class for handle portal/portlet logouts
********************************************************************** */