001 //$HeadURL: https://svn.wald.intevation.org/svn/deegree/base/branches/2.4_testing/src/org/deegree/portal/standard/gazetteer/LoadHierarchyListener.java $
002 /*----------------------------------------------------------------------------
003 This file is part of deegree, http://deegree.org/
004 Copyright (C) 2001-2009 by:
005 - Department of Geography, University of Bonn -
006 and
007 - lat/lon GmbH -
008
009 This library is free software; you can redistribute it and/or modify it under
010 the terms of the GNU Lesser General Public License as published by the Free
011 Software Foundation; either version 2.1 of the License, or (at your option)
012 any later version.
013 This library is distributed in the hope that it will be useful, but WITHOUT
014 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
015 FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
016 details.
017 You should have received a copy of the GNU Lesser General Public License
018 along with this library; if not, write to the Free Software Foundation, Inc.,
019 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
020
021 Contact information:
022
023 lat/lon GmbH
024 Aennchenstr. 19, 53177 Bonn
025 Germany
026 http://lat-lon.de/
027
028 Department of Geography, University of Bonn
029 Prof. Dr. Klaus Greve
030 Postfach 1147, 53001 Bonn
031 Germany
032 http://www.geographie.uni-bonn.de/deegree/
033
034 e-mail: info@deegree.org
035 ----------------------------------------------------------------------------*/
036 package org.deegree.portal.standard.gazetteer;
037
038 import java.io.IOException;
039 import java.util.ArrayList;
040 import java.util.List;
041
042 import org.deegree.enterprise.control.ajax.ResponseHandler;
043 import org.deegree.enterprise.control.ajax.WebEvent;
044 import org.deegree.framework.log.ILogger;
045 import org.deegree.framework.log.LoggerFactory;
046 import org.deegree.framework.util.Parameter;
047 import org.deegree.portal.Constants;
048 import org.deegree.portal.context.Module;
049 import org.deegree.portal.context.ViewContext;
050
051 /**
052 * TODO add class documentation here
053 *
054 * @author <a href="mailto:name@deegree.org">Andreas Poth</a>
055 * @author last edited by: $Author: apoth $
056 *
057 * @version $Revision: 21565 $, $Date: 2009-12-21 15:02:38 +0100 (Mo, 21. Dez 2009) $
058 */
059 public class LoadHierarchyListener extends AbstractGazetteerListener {
060
061 private static ILogger LOG = LoggerFactory.getLogger( LoadHierarchyListener.class );
062
063 /*
064 * (non-Javadoc)
065 *
066 * @see
067 * org.deegree.enterprise.control.ajax.AbstractListener#actionPerformed(org.deegree.enterprise.control.ajax.WebEvent
068 * , org.deegree.enterprise.control.ajax.ResponseHandler)
069 */
070 public void actionPerformed( WebEvent event, ResponseHandler responseHandler )
071 throws IOException {
072
073
074 ViewContext vc = (ViewContext) event.getSession().getAttribute( Constants.CURRENTMAPCONTEXT );
075 Module[] modules = vc.getGeneral().getExtension().getFrontend().getModulesByName( "Gazetteer" );
076 Parameter[] parameters = modules[0].getParameter().getParameters();
077 int index = Integer.parseInt( (String)event.getParameter().get( "hierarchy" ) );
078
079 Hierarchy hierarchy;
080 try {
081 hierarchy = loadHierarchy( (String) parameters[index].getValue() );
082 } catch ( Exception e ) {
083 LOG.logError( e );
084 responseHandler.writeAndClose( "ERROR: can not load hierarchy for index: " + index );
085 return;
086 }
087 HierarchyNode node = hierarchy.getRoot();
088 List<HierarchyNodeBean> beans = new ArrayList<HierarchyNodeBean>();
089 while ( node != null ) {
090 String name = node.getName();
091 boolean sf = node.supportFreeSearch();
092 beans.add( new HierarchyNodeBean( name, sf ) );
093 node = node.getChildNode();
094 }
095 responseHandler.writeAndClose( false, beans );
096 }
097
098 }