001 //$HeadURL: https://sushibar/svn/deegree/base/trunk/resources/eclipse/svn_classfile_header_template.xml $
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.wms;
038
039 import java.util.LinkedList;
040
041 import org.deegree.datatypes.QualifiedName;
042 import org.deegree.framework.xml.XMLFragment;
043 import org.deegree.framework.xml.XMLTools;
044 import org.deegree.i18n.Messages;
045 import org.deegree.ogcwebservices.OGCWebServiceException;
046 import org.deegree.ogcwebservices.wms.capabilities.Layer;
047 import org.deegree.ogcwebservices.wms.configuration.AbstractDataSource;
048 import org.deegree.ogcwebservices.wms.configuration.LocalWFSDataSource;
049 import org.deegree.ogcwebservices.wms.configuration.WMSConfigurationType;
050 import org.deegree.ogcwebservices.wms.operation.DescribeLayer;
051 import org.deegree.ogcwebservices.wms.operation.DescribeLayerResult;
052 import org.w3c.dom.Element;
053
054 /**
055 * <code>DescribeLayerHandler</code>
056 *
057 * @author <a href="mailto:schmitz@lat-lon.de">Andreas Schmitz</a>
058 * @author last edited by: $Author:$
059 *
060 * @version $Revision:$, $Date:$
061 */
062 public class DescribeLayerHandler {
063
064 /**
065 * @param request
066 * @param configuration
067 * @return a result object with the XML result
068 * @throws OGCWebServiceException
069 */
070 public DescribeLayerResult perform( DescribeLayer request, WMSConfigurationType configuration )
071 throws OGCWebServiceException {
072 String[] layers = request.getLayers();
073
074 LinkedList<Layer> ls = new LinkedList<Layer>();
075 // check layers for existance
076 for ( String l : layers ) {
077 Layer layer = configuration.getLayer( l );
078 if ( layer == null ) {
079 throw new OGCWebServiceException( Messages.getMessage( "WMS_UNKNOWNLAYER", l ) );
080 }
081 ls.add( layer );
082 }
083
084 XMLFragment doc = new XMLFragment( new QualifiedName( "WMS_DescribeLayerResponse" ) );
085 Element root = doc.getRootElement();
086 root.setAttribute( "version", "1.1.1" );
087
088 for ( Layer l : ls ) {
089 Element lay = XMLTools.appendElement( root, null, "LayerDescription" );
090 lay.setAttribute( "name", l.getName() );
091 AbstractDataSource[] ds = l.getDataSource();
092 if ( ds != null ) {
093 for ( AbstractDataSource d : ds ) {
094 if ( d instanceof LocalWFSDataSource ) {
095 // lay.setAttribute( "wfs", "unknown" );
096 LocalWFSDataSource wfsds = (LocalWFSDataSource) d;
097 Element e = XMLTools.appendElement( lay, null, "Query" );
098 QualifiedName qn = wfsds.getName();
099 e.setAttribute( "xmlns:" + qn.getPrefix(), qn.getNamespace().toASCIIString() );
100 e.setAttribute( "typeName", qn.getPrefixedName() );
101 }
102 }
103 }
104 }
105
106 return new DescribeLayerResult( request, doc );
107 }
108
109 }