001    //$HeadURL: svn+ssh://jwilden@svn.wald.intevation.org/deegree/base/branches/2.5_testing/src/org/deegree/ogcwebservices/wms/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    package org.deegree.ogcwebservices.wms.configuration;
037    
038    import java.awt.Color;
039    import java.net.URL;
040    import java.util.List;
041    import java.util.Map;
042    
043    import org.deegree.datatypes.QualifiedName;
044    import org.deegree.model.spatialschema.Geometry;
045    import org.deegree.ogcwebservices.OGCWebService;
046    import org.deegree.ogcwebservices.wms.RemoteWMService;
047    import org.deegree.ogcwebservices.wms.capabilities.ScaleHint;
048    import org.deegree.ogcwebservices.wms.capabilities.WMSCapabilities;
049    import org.deegree.ogcwebservices.wms.operation.GetMap;
050    
051    /**
052     * Data source description for a REMOTEWMS datasource
053     *
054     * @author <a href="mailto:poth@lat-lon.de">Andreas Poth </a>
055     * @version $Revision: 18195 $, $Date: 2009-06-18 17:55:39 +0200 (Do, 18 Jun 2009) $
056     */
057    public class RemoteWMSDataSource extends AbstractDataSource {
058    
059        private GetMap getMap = null;
060    
061        private Color[] transparentColors = null;
062    
063        private List<String> passedParameters;
064    
065        private Map<String, String> addedParameters;
066    
067        /**
068         * Creates a new DataSource object.
069         *
070         * @param querable
071         * @param failOnException
072         *
073         * @param name
074         *            name of the featuretype to access
075         * @param type
076         *            type of the data source (REMOTEWCS, LOCALWCS)
077         * @param ows
078         *            <tt>OGCWebService</tt> instance for accessing the data source
079         * @param capabilitiesURL
080         * @param scaleHint
081         *            filter condition
082         * @param validArea
083         * @param getMap
084         * @param transparentColors
085         * @param featureInfoTransform
086         * @param reqTimeLimit
087         * @param passedParameters
088         *            parameter names to be passed in incoming GetMap requests
089         * @param addedParameters
090         *            parameters and values to be added to outgoing GetMap requests
091         */
092        public RemoteWMSDataSource( boolean querable, boolean failOnException, QualifiedName name, int type,
093                                    OGCWebService ows, URL capabilitiesURL, ScaleHint scaleHint, Geometry validArea,
094                                    GetMap getMap, Color[] transparentColors, URL featureInfoTransform, int reqTimeLimit,
095                                    List<String> passedParameters, Map<String, String> addedParameters ) {
096            super( querable, failOnException, name, type, ows, capabilitiesURL, scaleHint, validArea, featureInfoTransform,
097                   reqTimeLimit, null );
098            this.getMap = getMap;
099            this.transparentColors = transparentColors;
100            this.passedParameters = passedParameters;
101            this.addedParameters = addedParameters;
102        }
103    
104        /**
105         * returns an instance of a <tt>GetMapRequest</tt> encapsulating the filter conditions against a remote WMS. The
106         * request object contains: WMTVER, LAYERS, STYLES, FORMAT, TRANSPARENT, VENDORSPECIFICPARAMETERS
107         *
108         * @return filter conditions
109         *
110         */
111        public GetMap getGetMapRequest() {
112            return getMap;
113        }
114    
115        /**
116         * @return an array of colors that shall be treated as transparent
117         */
118        public Color[] getTransparentColors() {
119            return transparentColors;
120        }
121    
122        /**
123         * returns an instance of the <tt>OGCWebService</tt> that represents the datasource. Notice: if more than one layer
124         * uses data that are offered by the same OWS the deegree WMS shall just use one instance for accessing the OWS
125         *
126         */
127        @Override
128        public OGCWebService getOGCWebService() {
129            try {
130                return new RemoteWMService( (WMSCapabilities) ows.getCapabilities() );
131            } catch ( Exception ignore ) {
132                // this is ignored, why?
133            }
134            return null;
135        }
136    
137        /**
138         * @return a list of parameter names to be passed from incoming requests
139         */
140        public List<String> getPassedParameters() {
141            return passedParameters;
142        }
143    
144        /**
145         * @return a list of parameters to be added to outgoing requests
146         */
147        public Map<String, String> getAddedParameters() {
148            return addedParameters;
149        }
150    
151    }