001 //$HeadURL: svn+ssh://jwilden@svn.wald.intevation.org/deegree/base/branches/2.5_testing/src/org/deegree/ogcwebservices/wpvs/configuration/RemoteWMSDataSource.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
037 package org.deegree.ogcwebservices.wpvs.configuration;
038
039 import java.awt.Color;
040 import java.io.IOException;
041 import java.net.URL;
042 import java.util.Map;
043 import java.util.concurrent.ConcurrentHashMap;
044
045 import org.deegree.datatypes.QualifiedName;
046 import org.deegree.framework.log.ILogger;
047 import org.deegree.framework.log.LoggerFactory;
048 import org.deegree.framework.xml.XMLParsingException;
049 import org.deegree.i18n.Messages;
050 import org.deegree.model.spatialschema.Surface;
051 import org.deegree.ogcwebservices.OGCWebService;
052 import org.deegree.ogcwebservices.OGCWebServiceException;
053 import org.deegree.ogcwebservices.getcapabilities.InvalidCapabilitiesException;
054 import org.deegree.ogcwebservices.wms.RemoteWMService;
055 import org.deegree.ogcwebservices.wms.capabilities.WMSCapabilities;
056 import org.deegree.ogcwebservices.wms.capabilities.WMSCapabilitiesDocument;
057 import org.deegree.ogcwebservices.wms.capabilities.WMSCapabilitiesDocumentFactory;
058 import org.deegree.ogcwebservices.wms.operation.GetMap;
059 import org.deegree.ogcwebservices.wpvs.capabilities.OWSCapabilities;
060 import org.xml.sax.SAXException;
061
062 /**
063 * This class represents a remote WPVS dataSource object.
064 *
065 * @author <a href="mailto:mays@lat-lon.de">Judit Mays</a>
066 * @author last edited by: $Author: mschneider $
067 *
068 * @version $Revision: 18195 $, $Date: 2009-06-18 17:55:39 +0200 (Do, 18 Jun 2009) $
069 */
070 public class RemoteWMSDataSource extends LocalWMSDataSource {
071
072 private static final ILogger LOG = LoggerFactory.getLogger( RemoteWMSDataSource.class );
073
074 private static Map<URL, WMSCapabilities> cache = new ConcurrentHashMap<URL, WMSCapabilities>();
075
076 /**
077 * Creates a new <code>RemoteWMSDataSource</code> object from the given parameters.
078 *
079 * @param name
080 * @param owsCapabilities
081 * @param validArea
082 * @param minScaleDenominator
083 * @param maxScaleDenominator
084 * @param filterCondition
085 * @param transparentColors
086 */
087 public RemoteWMSDataSource( QualifiedName name, OWSCapabilities owsCapabilities, Surface validArea,
088 double minScaleDenominator, double maxScaleDenominator, GetMap filterCondition,
089 Color[] transparentColors ) {
090
091 super( name, owsCapabilities, validArea, minScaleDenominator, maxScaleDenominator, filterCondition,
092 transparentColors );
093 this.setServiceType( AbstractDataSource.REMOTE_WMS );
094
095 }
096
097 /**
098 * The <code>filterCondition</code> is a map of key-value-pairs of an incomplete WMSRequest.
099 *
100 * @return Returns the filterCondition as GetMap
101 */
102 public GetMap getFilterConditionMap() {
103 return (GetMap) getFilterCondition();
104 }
105
106 /**
107 * @throws OGCWebServiceException
108 * @see org.deegree.ogcwebservices.wpvs.configuration.AbstractDataSource#getOGCWebService()
109 */
110 @Override
111 public OGCWebService getOGCWebService()
112 throws OGCWebServiceException {
113 WMSCapabilities wmsCapabilities = null;
114 synchronized ( this ) {
115
116 URL url = getOwsCapabilities().getOnlineResource();
117 wmsCapabilities = cache.get( url );
118 if ( !cache.containsKey( url ) || wmsCapabilities == null ) {
119 try {
120 WMSCapabilitiesDocument wmsCapsDoc = WMSCapabilitiesDocumentFactory.getWMSCapabilitiesDocument( url );
121 wmsCapabilities = (WMSCapabilities) wmsCapsDoc.parseCapabilities();
122 cache.put( url, wmsCapabilities );
123 } catch ( IOException e ) {
124 LOG.logError( e.getMessage(), e );
125 String msg = Messages.getMessage( "WPVS_DATASOURCE_CAP_ERROR", toString() );
126 throw new OGCWebServiceException( msg + e.getMessage() );
127 } catch ( SAXException e ) {
128 LOG.logError( e.getMessage(), e );
129 String msg = Messages.getMessage( "WPVS_DATASOURCE_CAP_ERROR", toString() );
130 throw new OGCWebServiceException( msg + e.getMessage() );
131 } catch ( InvalidCapabilitiesException e ) {
132 LOG.logError( e.getMessage(), e );
133 String msg = Messages.getMessage( "WPVS_DATASOURCE_CAP_ERROR", toString() );
134 throw new OGCWebServiceException( msg + e.getMessage() );
135 } catch ( XMLParsingException e ) {
136 LOG.logError( e.getMessage(), e );
137 String msg = Messages.getMessage( "WPVS_DATASOURCE_CAP_ERROR", toString() );
138 throw new OGCWebServiceException( msg + e.getMessage() );
139 }
140 }
141
142 }
143
144 return new RemoteWMService( wmsCapabilities );
145 }
146 }