    001    //$HeadURL:
    002    /*----------------------------------------------------------------------------
    003     This file is part of deegree, http://deegree.org/
    004     Copyright (C) 2001-2010 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.cataloguemanager.control;
    037
    038    import java.io.IOException;
    039    import java.io.InputStream;
    040    import java.net.URL;
    041    import java.util.ArrayList;
    042    import java.util.List;
    043
    044    import javax.servlet.ServletException;
    045    import javax.servlet.http.HttpServletRequest;
    046    import javax.servlet.http.HttpServletResponse;
    047
    048    import org.deegree.enterprise.control.ajax.ResponseHandler;
    049    import org.deegree.enterprise.control.ajax.WebEvent;
    050    import org.deegree.framework.log.ILogger;
    051    import org.deegree.framework.log.LoggerFactory;
    052    import org.deegree.framework.util.HttpUtils;
    053    import org.deegree.framework.xml.NamespaceContext;
    054    import org.deegree.framework.xml.XMLFragment;
    055    import org.deegree.framework.xml.XMLTools;
    056    import org.deegree.ogcbase.CommonNamespaces;
    057    import org.w3c.dom.Element;
    058
    059    /**
    060     *
    061     *
    062     *
    063     * @author <a href="mailto:poth@lat-lon.de">Andreas Poth</a>
    064     * @author last edited by: $Author: apoth $
    065     *
    066     * @version $Revision: 24932 $, $Date: 2010-06-17 20:16:34 +0200 (Do, 17. Jun 2010) $
    067     */
    068    public class GetMetadataListListener extends AbstractMetadataListener {
    069
    070        private static final ILogger LOG = LoggerFactory.getLogger( GetMetadataListListener.class );
    071
    072        private static NamespaceContext nsc = CommonNamespaces.getNamespaceContext();
    073
    074        /*
    075         * (non-Javadoc)
    076         *
    077         * @see org.deegree.portal.cataloguemanager.control.AbstractMetadataListener#actionPerformed(
    078         * org.deegree.enterprise.control.ajax.WebEvent, org.deegree.portal.cataloguemanager.control.ResponseHandler)
    079         */
    080        public void actionPerformed( WebEvent event, ResponseHandler responseHandler )
    081                                throws IOException {
    082            List<String[]> rows = new ArrayList<String[]>();
    083            CatalogueManagerConfiguration config = getCatalogueManagerConfiguration( event );
    084            String addr = config.getCatalogueURL();
    085            URL url = getClass().getResource( "GetRecords.xml" );
    086            // read all metadata sets from a CSW
    087            InputStream is = HttpUtils.performHttpPost( addr, url.openStream(), 60000, null, null, "text/xml", null, null ).getResponseBodyAsStream();
    088            try {
    089                XMLFragment xml = new XMLFragment();
    090                xml.load( is, addr );
    091                String xpath = "./csw202:SearchResults/gmd:MD_Metadata";
    092                List<Element> mdSets = XMLTools.getElements( xml.getRootElement(), xpath, nsc );
    093                for ( Element element : mdSets ) {
    094                    String[] s = new String[3];
    095                    xpath = "./gmd:fileIdentifier/gco:CharacterString";
    096                    s[0] = XMLTools.getNodeAsString( element, xpath, nsc, "" );
    097                    xpath = "./gmd:identificationInfo/gmd:MD_DataIdentification/gmd:citation/gmd:CI_Citation/gmd:title/gco:CharacterString";
    098                    s[1] = XMLTools.getNodeAsString( element, xpath, nsc, "" );
    099                    xpath = "./gmd:identificationInfo/gmd:MD_DataIdentification/gmd:abstract/gco:CharacterString";
    100                    s[2] = XMLTools.getNodeAsString( element, xpath, nsc, "" );
    101                    rows.add( s );
    102                }
    103            } catch ( Exception e ) {
    104                LOG.logError( e );
    105                throw new IOException( e.getMessage() );
    106            }
    107
    108            HttpServletRequest request = ( (HttpServletRequest) event.getSource() );
    109            request.setAttribute( "METADATASETS", rows );
    110
    111            try {
    112                HttpServletResponse resp = responseHandler.getHttpServletResponse();
    113                // result page uses UTF-8 encoding
    114                resp.setCharacterEncoding( "UTF-8" );
    115                request.getRequestDispatcher( '/' + getNextPage() ).forward( request, resp );
    116            } catch ( ServletException e ) {
    117                throw new IOException( e.getMessage() );
    118            }
    119        }
    120
    121    }