    001    // $HeadURL: https://svn.wald.intevation.org/svn/deegree/base/branches/2.4_testing/src/org/deegree/ogcwebservices/wcs/configuration/WCSConfigurationDocument.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.ogcwebservices.wcs.configuration;
    037
    038    import java.io.IOException;
    039    import java.net.URL;
    040    import java.util.List;
    041
    042    import org.deegree.framework.log.ILogger;
    043    import org.deegree.framework.log.LoggerFactory;
    044    import org.deegree.framework.util.StringTools;
    045    import org.deegree.framework.xml.XMLParsingException;
    046    import org.deegree.framework.xml.XMLTools;
    047    import org.deegree.model.metadata.iso19115.Keywords;
    048    import org.deegree.model.metadata.iso19115.OnlineResource;
    049    import org.deegree.ogcbase.CommonNamespaces;
    050    import org.deegree.ogcbase.OGCException;
    051    import org.deegree.ogcwebservices.LonLatEnvelope;
    052    import org.deegree.ogcwebservices.MetadataLink;
    053    import org.deegree.ogcwebservices.OGCWebServiceException;
    054    import org.deegree.ogcwebservices.wcs.CoverageOfferingBrief;
    055    import org.deegree.ogcwebservices.wcs.getcapabilities.WCSCapabilitiesDocument;
    056    import org.w3c.dom.Element;
    057    import org.xml.sax.SAXException;
    058
    059    /**
    060     *
    061     *
    062     * @version $Revision: 20592 $
    063     * @author <a href="mailto:poth@lat-lon.de">Andreas Poth </a>
    064     * @author last edited by: $Author: rbezema $
    065     *
    066     *         $Revision: 20592 $, $Date: 2009-11-05 13:24:27 +0100 (Do, 05. Nov 2009) $
    067     */
    068    public class WCSConfigurationDocument extends WCSCapabilitiesDocument {
    069
    070        private static final long serialVersionUID = -5962651588545478145L;
    071
    072        protected static final ILogger LOG = LoggerFactory.getLogger( WCSConfigurationDocument.class );
    073
    074        private static final String PRE_DEEGREE = CommonNamespaces.DEEGREEWCS_PREFIX + ":";
    075
    076        private static final String PRE_WCS = CommonNamespaces.WCS_PREFIX + ":";
    077
    078        /**
    079         *
    080         */
    081        public static final String XML_TEMPLATE = "WCSConfigurationTemplate.xml";
    082
    083        @Override
    084        public void createEmptyDocument()
    085                                throws IOException, SAXException {
    086            URL url = WCSConfigurationDocument.class.getResource( XML_TEMPLATE );
    087            if ( url == null ) {
    088                throw new IOException( "The resource '" + XML_TEMPLATE + " could not be found." );
    089            }
    090            load( url );
    091        }
    092
    093        /**
    094         * creates the deegreeParams section of the WCS capabilities/configuration. If a 'common' WCS capabilities is
    095         * encapsulated by the <tt>WCSCapabilitieDocument</tt> this method returns <tt>null</tt>
    096         *
    097         * @return the data
    098         * @throws InvalidConfigurationException
    099         */
    100        public WCSDeegreeParams getDeegreeParamsSection()
    101                                throws InvalidConfigurationException {
    102            try {
    103                Element element = (Element) XMLTools.getRequiredNode( getRootElement(), PRE_DEEGREE + "deegreeParam",
    104                                                                      nsContext );
    105                // if (element == null) {
    106                // throw new InvalidConfigurationException( "DeegreeParams section is missing" );
    107                // }
    108                // OnlineResource defOLR = parseOnLineResource(XMLTools.getRequiredChildElement(
    109                // "DefaultOnlineResource", DGRNS, element ));
    110                OnlineResource defOLR = parseOnLineResource( (Element) XMLTools.getRequiredNode(
    111                                                                                                 element,
    112                                                                                                 PRE_DEEGREE
    113                                                                                                                         + "DefaultOnlineResource",
    114                                                                                                 nsContext ) );
    115                // String tmp = XMLTools.getStringValue( "CacheSize", DGRNS, element, "100" );
    116                int cache = XMLTools.getNodeAsInt( element, PRE_DEEGREE + "CacheSize", nsContext, 100 );
    117                // int cache = Integer.parseInt(tmp);
    118                // tmp = XMLTools.getStringValue( "RequestTimeLimit", DGRNS, element, "5" );
    119                // int timeLimit = Integer.parseInt(tmp);
    120                int timeLimit = XMLTools.getNodeAsInt( element, PRE_DEEGREE + "RequestTimeLimit", nsContext, 5 );
    121                Element dataDirs = (Element) XMLTools.getRequiredNode( element, PRE_DEEGREE + "DataDirectoryList",
    122                                                                       nsContext );
    123                String[] dirList = XMLTools.getNodesAsStrings( dataDirs, PRE_DEEGREE + "DataDirectory", nsContext );
    124                //
    125                if ( dirList.length > 0 ) {
    126                    StringBuffer sb = new StringBuffer( 400 );
    127                    sb.append( "<DataDirectoryList> evaluation is not suporrrted yet, skipping following dirs:\n" );
    128                    for ( int i = 0; i < dirList.length; ++i )
    129                        sb.append( '\t' + dirList[i] + ( ( i + 1 < dirList.length ) ? '\n' : ' ' ) );
    130                    LOG.logInfo( sb.toString() );
    131                }
    132                WCSDeegreeParams wcsDP = new WCSDeegreeParams( defOLR, cache, timeLimit, dirList );
    133                LOG.logDebug( "(WCSConfig.getDeegreeParamsSection): " + wcsDP );
    134                return wcsDP;
    135            } catch ( XMLParsingException e ) {
    136                String s = e.getMessage();
    137                throw new InvalidConfigurationException( "Error while parsing the DeegreeParams "
    138                                                         + "Section of the WCS capabilities\n" + s
    139                                                         + StringTools.stackTraceToString( e ) );
    140            }
    141        }
    142
    143        // /**
    144        // * returns an array containing a list of default datadirectories parsed by
    145        // * the WCS for coverage configurations
    146        // *
    147        // * @param element
    148        // * @return created array of data directory names
    149        // * @throws XMLParsingException
    150        // */
    151        // private String[] getDirectoryList(Element element ) {
    152        // ElementList el = XMLTools.getChildElements( "DataDirectory", DGRNS, element );
    153        // String[] dirList = new String[el.getLength()];
    154        // for (int i = 0; i < dirList.length; i++) {
    155        // dirList[i] = XMLTools.getStringValue(el.item(i));
    156        // }
    157        // return dirList;
    158        // }
    159
    160        /**
    161         * creates a <tt>CoverageOfferingBrief</tt> object from the passed element encapsulating one CoverageOfferingBrief
    162         * part of the WCS ContentMetadata section
    163         *
    164         * @param element
    165         * @return created <tt>CoverageOfferingBrief</tt>
    166         * @throws XMLParsingException
    167         * @throws OGCWebServiceException
    168         * @throws OGCException
    169         */
    170        @Override
    171        protected CoverageOfferingBrief parseCoverageOfferingBrief( Element element )
    172                                throws XMLParsingException, OGCWebServiceException, OGCException {
    173            // Element elem = XMLTools.getChildElement( "metadataLink", WCSNS, element );
    174            Element elem = (Element) XMLTools.getNode( element, PRE_WCS + "metadataLink", nsContext );
    175            MetadataLink mLink = parseMetadataLink( elem );
    176            String desc = XMLTools.getNodeAsString( element, PRE_WCS + "description", nsContext, null );
    177            // String name = XMLTools.getRequiredStringValue( "name", WCSNS, element );
    178            String name = XMLTools.getRequiredNodeAsString( element, PRE_WCS + "name", nsContext );
    179            // String label = XMLTools.getRequiredStringValue( "label", WCSNS, element );
    180            String label = XMLTools.getRequiredNodeAsString( element, PRE_WCS + "label", nsContext );
    181            // elem = XMLTools.getChildElement( "lonLatEnvelope", WCSNS, element );
    182            elem = (Element) XMLTools.getNode( element, PRE_WCS + "lonLatEnvelope", nsContext );
    183            LonLatEnvelope llEnv = parseLonLatEnvelope( elem );
    184            // ElementList el = XMLTools.getChildElements( "keywords", WCSNS, element );
    185            List el = XMLTools.getNodes( element, PRE_WCS + "keywords", nsContext );
    186            Keywords[] keywords = new Keywords[el.size()];
    187            for ( int i = 0; i < el.size(); ++i ) {
    188                keywords[i] = parseKeywords( (Element) el.get( i ), WCSNS );
    189            }
    190            // Keywords[] keywords = parseKeywords(el, WCSNS);
    191            String s = XMLTools.getRequiredNodeAsString( element, PRE_DEEGREE + "Configuration", nsContext );
    192            URL url = null;
    193
    194            try {
    195                url = resolve( s );
    196            } catch ( Exception e ) {
    197                throw new XMLParsingException( "<Configuration> element in CoverageOfferingBrief "
    198                                               + "section isn't a valid URL: " + s );
    199            }
    200
    201            return new CoverageOfferingBrief( name, label, desc, mLink, llEnv, keywords, url );
    202        }
    203
    204    }