001 //$HeadURL: https://svn.wald.intevation.org/svn/deegree/base/branches/2.4_testing/src/org/deegree/portal/standard/wmps/GetTemplatesListener.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.wmps;
037
038 import java.io.IOException;
039 import java.io.InputStream;
040 import java.util.ArrayList;
041 import java.util.List;
042
043 import org.deegree.enterprise.control.ajax.AbstractListener;
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.HttpUtils;
049 import org.deegree.framework.xml.XMLFragment;
050 import org.deegree.framework.xml.XMLTools;
051 import org.deegree.ogcbase.CommonNamespaces;
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: 24932 $, $Date: 2010-06-17 20:16:34 +0200 (Do, 17. Jun 2010) $
060 */
061 public class GetTemplatesListener extends AbstractListener {
062
063 private static final ILogger LOG = LoggerFactory.getLogger( GetTemplatesListener.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 public void actionPerformed( WebEvent event, ResponseHandler responseHandler )
073 throws IOException {
074
075 InputStream is = HttpUtils.performHttpGet( getInitParameter( "WMPS" ),
076 "request=GetAvailableTemplates&version=1.0.0", timeout, null, null,
077 null ).getResponseBodyAsStream();
078 XMLFragment xml = new XMLFragment();
079 List<String> templates = null;
080 try {
081 xml.load( is, getInitParameter( "WMPS" ) );
082 String[] t = XMLTools.getRequiredNodesAsStrings( xml.getRootElement(), "deegreewmps:Template",
083 CommonNamespaces.getNamespaceContext() );
084 templates = new ArrayList<String>( t.length );
085 for ( String template : t ) {
086 templates.add( template );
087 }
088 } catch ( Exception e ) {
089 LOG.logError( e );
090 String s = getInitParameter( "WMPS" ) + "?request=GetAvailableTemplates&version=1.0.0";
091 throw new IOException( "can not get list of available templates from WMPS: " + s );
092 }
093 responseHandler.writeAndClose( false, templates );
094 }
095
096 }