001 //$HeadURL: svn+ssh://jwilden@svn.wald.intevation.org/deegree/base/branches/2.5_testing/src/org/deegree/portal/standard/gazetteer/FreeSearchListener.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.nio.charset.Charset;
040 import java.util.List;
041 import java.util.Map;
042
043 import org.deegree.datatypes.QualifiedName;
044 import org.deegree.enterprise.control.ajax.ResponseHandler;
045 import org.deegree.enterprise.control.ajax.WebEvent;
046 import org.deegree.framework.log.ILogger;
047 import org.deegree.framework.log.LoggerFactory;
048 import org.deegree.framework.util.Parameter;
049 import org.deegree.portal.Constants;
050 import org.deegree.portal.context.Module;
051 import org.deegree.portal.context.ViewContext;
052
053 /**
054 * TODO add class documentation here
055 *
056 * @author <a href="mailto:name@deegree.org">Andreas Poth</a>
057 * @author last edited by: $Author: apoth $
058 *
059 * @version $Revision: 26459 $, $Date: 2010-09-03 16:42:59 +0200 (Fr, 03 Sep 2010) $
060 */
061 public class FreeSearchListener extends AbstractGazetteerListener {
062
063 private static final ILogger LOG = LoggerFactory.getLogger( FreeSearchListener.class );
064
065 /*
066 * (non-Javadoc)
067 *
068 * @see
069 * org.deegree.enterprise.control.ajax.AbstractListener#actionPerformed(org.deegree.enterprise.control.ajax.WebEvent
070 * , org.deegree.enterprise.control.ajax.ResponseHandler)
071 */
072 @SuppressWarnings("unchecked")
073 public void actionPerformed( WebEvent event, ResponseHandler responseHandler )
074 throws IOException {
075 Map<String, Object> param = event.getParameter();
076 int index = ( (Number) param.get( "level" ) ).intValue();
077 int hierarchyIndex = Integer.parseInt( (String) param.get( "hierarchyIndex" ) );
078 String searchString = (String) param.get( "searchString" );
079
080 ViewContext vc = (ViewContext) event.getSession().getAttribute( Constants.CURRENTMAPCONTEXT );
081 Module[] modules = vc.getGeneral().getExtension().getFrontend().getModulesByName( "Gazetteer" );
082 Parameter[] parameters = modules[0].getParameter().getParameters();
083 // just one gazetteer module is allowed to be contained in an instance of iGeoPortal
084 Hierarchy hierarchy;
085 try {
086 hierarchy = loadHierarchy( (String) parameters[hierarchyIndex].getValue() );
087 } catch ( Exception e ) {
088 LOG.logError( e );
089 responseHandler.writeAndClose( "ERROR: can not load hierarchy list" );
090 return;
091 }
092 HierarchyNode node = hierarchy.getRoot();
093 int k = 0;
094 while ( node != null && k < index ) {
095 node = node.getChildNode();
096 k++;
097 }
098 QualifiedName ft = node.getFeatureType();
099 FindItemsCommand cmd = new FindItemsCommand( hierarchy.getGazetteerAddress(), ft, node.getProperties(),
100 searchString, true, node.isStricMode(), false, node.isMatchCase() );
101 List<GazetteerItem> items;
102 try {
103 items = cmd.execute();
104 } catch ( Exception e ) {
105 LOG.logError( e );
106 responseHandler.writeAndClose( "ERROR: could not find/load items for search string: " + searchString );
107 return;
108 }
109 String charEnc = Charset.defaultCharset().displayName();
110 responseHandler.setContentType( "application/json; charset=" + charEnc );
111 responseHandler.writeAndClose( false, items );
112 }
113
114 }