    001    //$HeadURL: $
    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
    037    package org.deegree.ogcwebservices.wcts.configuration;
    038
    039    import java.io.IOException;
    040    import java.net.URL;
    041
    042    import org.deegree.framework.log.ILogger;
    043    import org.deegree.framework.log.LoggerFactory;
    044    import org.deegree.framework.xml.XMLParsingException;
    045    import org.deegree.framework.xml.XMLTools;
    046    import org.deegree.ogcbase.CommonNamespaces;
    047    import org.deegree.ogcwebservices.getcapabilities.InvalidCapabilitiesException;
    048    import org.deegree.ogcwebservices.wcts.capabilities.Content;
    049    import org.deegree.ogcwebservices.wcts.capabilities.WCTSCapabilities;
    050    import org.deegree.ogcwebservices.wcts.capabilities.WCTSCapabilitiesDocument;
    051    import org.w3c.dom.Element;
    052    import org.xml.sax.SAXException;
    053
    054    /**
    055     * <code>WCTSConfigurationDocument</code> loads an xml-dom-document and creates a {@link WCTSConfiguration}
    056     * bean-representation.
    057     *
    058     * @author <a href="mailto:bezema@lat-lon.de">Rutger Bezema</a>
    059     *
    060     * @author last edited by: $Author:$
    061     *
    062     * @version $Revision:$, $Date:$
    063     *
    064     */
    065    public class WCTSConfigurationDocument extends WCTSCapabilitiesDocument {
    066
    067        private static ILogger LOG = LoggerFactory.getLogger( WCTSConfigurationDocument.class );
    068
    069        /**
    070         *
    071         */
    072        private static final long serialVersionUID = -4585404178146440716L;
    073
    074        /**
    075         * @param configURL
    076         *            to load from.
    077         * @throws SAXException
    078         *             if an xml parsing error has been detected.
    079         * @throws IOException
    080         *             if the file could not be loaded.
    081         */
    082        public WCTSConfigurationDocument( URL configURL ) throws IOException, SAXException {
    083            super.load( configURL );
    084        }
    085
    086        /**
    087         * @return a new instance of a {@link WCTSConfiguration}
    088         * @throws InvalidCapabilitiesException
    089         *             if the configuration contains erroneous xml.
    090         */
    091        public WCTSConfiguration parseConfiguration()
    092                                throws InvalidCapabilitiesException {
    093
    094            WCTSDeegreeParams deegreeParams = parseDeegreeParams();
    095            WCTSConfiguration config = new WCTSConfiguration(
    096                                                              (WCTSCapabilities) parseCapabilities( deegreeParams.getConfiguredCRSProvider() ),
    097                                                              deegreeParams );
    098            if ( deegreeParams.createDefaultTransformationsDescription() ) {
    099                LOG.logDebug( "Creating descriptions for the default Transformations." );
    100                Content capCon = config.getContents();
    101                if ( capCon != null ) {
    102                    capCon.describeDefaultTransformations( deegreeParams.getTransformationPrefix() );
    103                }
    104            }
    105            return config;
    106        }
    107
    108        /**
    109         * @return the deegreeparam section of the configuration.
    110         * @throws XMLParsingException
    111         */
    112        private WCTSDeegreeParams parseDeegreeParams() {
    113            Element root = getRootElement();
    114            WCTSDeegreeParams result = null;
    115            Element deegreeParams;
    116            try {
    117                deegreeParams = XMLTools.getElement( root, CommonNamespaces.DEEGREEWCTS_PREFIX + ":deegreeParams",
    118                                                     nsContext );
    119                if ( deegreeParams != null ) {
    120                    int updateSequence = XMLTools.getNodeAsInt( deegreeParams, CommonNamespaces.DEEGREEWCTS_PREFIX
    121                                                                               + ":updateSequence", nsContext, -1 );
    122
    123                    if ( updateSequence > -1 && updateSequence < 60 ) {
    124                        // one hour
    125                        updateSequence = 60;
    126                    }
    127                    updateSequence *= 60000;
    128                    LOG.logInfo( "Content cache will be updated every: " + ( updateSequence / 3600000d ) + " hours" );
    129
    130                    String provider = XMLTools.getNodeAsString( deegreeParams, CommonNamespaces.DEEGREEWCTS_PREFIX
    131                                                                               + ":crsProvider", nsContext, null );
    132                    LOG.logDebug( "Using configured crs provider:" + provider );
    133                    String transformPrefix = XMLTools.getNodeAsString( deegreeParams, CommonNamespaces.DEEGREEWCTS_PREFIX
    134                                                                                      + ":transformationIDPrefix",
    135                                                                       nsContext, null );
    136
    137                    boolean useDeegreeTransformType = XMLTools.getNodeAsBoolean(
    138                                                                                 deegreeParams,
    139                                                                                 CommonNamespaces.DEEGREEWCTS_PREFIX
    140                                                                                                         + ":useDeegreeTransformType",
    141                                                                                 nsContext, true );
    142                    boolean createDefaultTransformations = XMLTools.getNodeAsBoolean(
    143                                                                                      deegreeParams,
    144                                                                                      CommonNamespaces.DEEGREEWCTS_PREFIX
    145                                                                                                              + ":createDefaultTransformationDescriptions",
    146                                                                                      nsContext, true );
    147                    result = new WCTSDeegreeParams( updateSequence, provider, transformPrefix, useDeegreeTransformType,
    148                                                    createDefaultTransformations );
    149                }
    150            } catch ( XMLParsingException e ) {
    151                LOG.logError( e );
    152            }
    153            if ( result == null ) {
    154                result = new WCTSDeegreeParams();
    155            }
    156            return result;
    157        }
    158
    159    }