    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    }