001 //$HeadURL: svn+ssh://rbezema@svn.wald.intevation.org/deegree/base/branches/2.2_testing/src/org/deegree/ogcwebservices/wpvs/configuration/RemoteWMSDataSource.java $
002 /*---------------- FILE HEADER ------------------------------------------
003
004 This file is part of deegree.
005 Copyright (C) 2001-2008 by:
006 EXSE, Department of Geography, University of Bonn
007 http://www.giub.uni-bonn.de/deegree/
008 lat/lon GmbH
009 http://www.lat-lon.de
010
011 This library is free software; you can redistribute it and/or
012 modify it under the terms of the GNU Lesser General Public
013 License as published by the Free Software Foundation; either
014 version 2.1 of the License, or (at your option) any later version.
015
016 This library is distributed in the hope that it will be useful,
017 but WITHOUT ANY WARRANTY; without even the implied warranty of
018 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
019 Lesser General Public License for more details.
020
021 You should have received a copy of the GNU Lesser General Public
022 License along with this library; if not, write to the Free Software
023 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
024
025 Contact:
026
027 Andreas Poth
028 lat/lon GmbH
029 Aennchenstraße 19
030 53177 Bonn
031 Germany
032 E-Mail: poth@lat-lon.de
033
034 Prof. Dr. Klaus Greve
035 Department of Geography
036 University of Bonn
037 Meckenheimer Allee 166
038 53115 Bonn
039 Germany
040 E-Mail: greve@giub.uni-bonn.de
041
042 ---------------------------------------------------------------------------*/
043
044 package org.deegree.ogcwebservices.wpvs.configuration;
045
046 import java.awt.Color;
047 import java.io.IOException;
048 import java.net.URL;
049 import java.util.Map;
050 import java.util.concurrent.ConcurrentHashMap;
051
052 import org.deegree.datatypes.QualifiedName;
053 import org.deegree.framework.log.ILogger;
054 import org.deegree.framework.log.LoggerFactory;
055 import org.deegree.framework.xml.XMLParsingException;
056 import org.deegree.i18n.Messages;
057 import org.deegree.model.spatialschema.Surface;
058 import org.deegree.ogcwebservices.OGCWebService;
059 import org.deegree.ogcwebservices.OGCWebServiceException;
060 import org.deegree.ogcwebservices.getcapabilities.InvalidCapabilitiesException;
061 import org.deegree.ogcwebservices.wms.RemoteWMService;
062 import org.deegree.ogcwebservices.wms.capabilities.WMSCapabilities;
063 import org.deegree.ogcwebservices.wms.capabilities.WMSCapabilitiesDocument;
064 import org.deegree.ogcwebservices.wms.capabilities.WMSCapabilitiesDocumentFactory;
065 import org.deegree.ogcwebservices.wms.operation.GetMap;
066 import org.deegree.ogcwebservices.wpvs.capabilities.OWSCapabilities;
067 import org.xml.sax.SAXException;
068
069 /**
070 * This class represents a remote WPVS dataSource object.
071 *
072 * @author <a href="mailto:mays@lat-lon.de">Judit Mays</a>
073 * @author last edited by: $Author: apoth $
074 *
075 * @version $Revision: 9345 $, $Date: 2007-12-27 17:22:25 +0100 (Do, 27 Dez 2007) $
076 */
077 public class RemoteWMSDataSource extends LocalWMSDataSource {
078
079 private static final ILogger LOG = LoggerFactory.getLogger( RemoteWMSDataSource.class );
080
081 private static Map<URL, WMSCapabilities> cache = new ConcurrentHashMap<URL, WMSCapabilities>();
082
083 /**
084 * Creates a new <code>RemoteWMSDataSource</code> object from the given parameters.
085 *
086 * @param name
087 * @param owsCapabilities
088 * @param validArea
089 * @param minScaleDenominator
090 * @param maxScaleDenominator
091 * @param filterCondition
092 * @param transparentColors
093 */
094 public RemoteWMSDataSource( QualifiedName name, OWSCapabilities owsCapabilities, Surface validArea,
095 double minScaleDenominator, double maxScaleDenominator, GetMap filterCondition,
096 Color[] transparentColors ) {
097
098 super( name, owsCapabilities, validArea, minScaleDenominator, maxScaleDenominator, filterCondition,
099 transparentColors );
100 this.setServiceType( AbstractDataSource.REMOTE_WMS );
101
102 }
103
104 /**
105 * The <code>filterCondition</code> is a map of key-value-pairs of an incomplete WMSRequest.
106 *
107 * @return Returns the filterCondition as a map of key-value-pairs.
108 */
109 public Map getFilterConditionMap() {
110 return (Map) getFilterCondition();
111 }
112
113 /**
114 * @throws OGCWebServiceException
115 * @see org.deegree.ogcwebservices.wpvs.configuration.AbstractDataSource#getOGCWebService()
116 */
117 @Override
118 public OGCWebService getOGCWebService()
119 throws OGCWebServiceException {
120 WMSCapabilities wmsCapabilities = null;
121 synchronized ( this ) {
122
123 URL url = getOwsCapabilities().getOnlineResource();
124 wmsCapabilities = cache.get( url );
125 if ( !cache.containsKey( url ) || wmsCapabilities == null ) {
126 try {
127 WMSCapabilitiesDocument wmsCapsDoc = WMSCapabilitiesDocumentFactory.getWMSCapabilitiesDocument( url );
128 wmsCapabilities = (WMSCapabilities) wmsCapsDoc.parseCapabilities();
129 cache.put( url, wmsCapabilities );
130 } catch ( IOException e ) {
131 LOG.logError( e.getMessage(), e );
132 String msg = Messages.getMessage( "WPVS_DATASOURCE_CAP_ERROR", toString() );
133 throw new OGCWebServiceException( msg + e.getMessage() );
134 } catch ( SAXException e ) {
135 LOG.logError( e.getMessage(), e );
136 String msg = Messages.getMessage( "WPVS_DATASOURCE_CAP_ERROR", toString() );
137 throw new OGCWebServiceException( msg + e.getMessage() );
138 } catch ( InvalidCapabilitiesException e ) {
139 LOG.logError( e.getMessage(), e );
140 String msg = Messages.getMessage( "WPVS_DATASOURCE_CAP_ERROR", toString() );
141 throw new OGCWebServiceException( msg + e.getMessage() );
142 } catch ( XMLParsingException e ) {
143 LOG.logError( e.getMessage(), e );
144 String msg = Messages.getMessage( "WPVS_DATASOURCE_CAP_ERROR", toString() );
145 throw new OGCWebServiceException( msg + e.getMessage() );
146 }
147 }
148
149 }
150
151 return new RemoteWMService( wmsCapabilities );
152 }
153 }