001 //$HeadURL: https://svn.wald.intevation.org/svn/deegree/base/branches/2.3_testing/src/org/deegree/ogcwebservices/wfs/GetGmlObjectHandler.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.wfs;
038
039 import static java.lang.Integer.parseInt;
040 import static java.util.Collections.singleton;
041 import static org.deegree.framework.log.LoggerFactory.getLogger;
042 import static org.deegree.i18n.Messages.get;
043
044 import java.util.ArrayList;
045 import java.util.Set;
046
047 import org.deegree.datatypes.QualifiedName;
048 import org.deegree.framework.log.ILogger;
049 import org.deegree.i18n.Messages;
050 import org.deegree.io.datastore.Datastore;
051 import org.deegree.io.datastore.DatastoreException;
052 import org.deegree.io.datastore.schema.MappedFeatureType;
053 import org.deegree.model.crs.UnknownCRSException;
054 import org.deegree.model.feature.Feature;
055 import org.deegree.model.feature.FeatureCollection;
056 import org.deegree.model.filterencoding.FeatureFilter;
057 import org.deegree.model.filterencoding.FeatureId;
058 import org.deegree.model.filterencoding.Filter;
059 import org.deegree.ogcwebservices.InconsistentRequestException;
060 import org.deegree.ogcwebservices.InvalidParameterValueException;
061 import org.deegree.ogcwebservices.OGCWebServiceException;
062 import org.deegree.ogcwebservices.wfs.capabilities.FormatType;
063 import org.deegree.ogcwebservices.wfs.configuration.WFSConfiguration;
064 import org.deegree.ogcwebservices.wfs.operation.GetGmlObject;
065 import org.deegree.ogcwebservices.wfs.operation.GmlResult;
066 import org.deegree.ogcwebservices.wfs.operation.Query;
067
068 /**
069 * <code>GetGmlObjectHandler</code>
070 *
071 * @author <a href="mailto:schmitz@lat-lon.de">Andreas Schmitz</a>
072 * @author last edited by: $Author: mschneider $
073 *
074 * @version $Revision: 18195 $, $Date: 2009-06-18 17:55:39 +0200 (Do, 18. Jun 2009) $
075 */
076 class GetGmlObjectHandler {
077
078 private static final ILogger LOG = getLogger( GetGmlObjectHandler.class );
079
080 private WFSConfiguration config;
081
082 GetGmlObjectHandler( WFSConfiguration config ) {
083 this.config = config;
084 }
085
086 GmlResult handleRequest( GetGmlObject request ) {
087 if ( !config.hasUniquePrefixMapping() ) {
088 return new GmlResult( request, new InconsistentRequestException( get( "WFS_CONF_FT_PREFICES_NOT_UNIQUE2" ) ) );
089 }
090 String objectId = request.getObjectId();
091 MappedFeatureType type = config.getFeatureType( objectId );
092
093 if ( type == null ) {
094 LOG.logDebug( "The GML type could not be determined for the incoming GMLObjectID" );
095 return new GmlResult( request, new InvalidParameterValueException( "getgmlobject",
096 get( "WFS_NO_SUCH_FEATURE", objectId ) ) );
097 }
098
099 if ( type.isAbstract() ) {
100 String msg = Messages.getMessage( "WFS_FEATURE_TYPE_ABSTRACT", type.getName() );
101 return new GmlResult( request, new OGCWebServiceException( "getgmlobject", msg ) );
102 }
103 if ( !type.isVisible() ) {
104 String msg = Messages.getMessage( "WFS_FEATURE_TYPE_INVISIBLE", type.getName() );
105 return new GmlResult( request, new OGCWebServiceException( "getgmlobject", msg ) );
106 }
107
108 int idx = objectId.indexOf( "_GEOM_" );
109 int geom = -1;
110 if ( idx > 0 ) {
111 try {
112 geom = parseInt( objectId.substring( idx + 6 ) );
113 } catch ( NumberFormatException e ) {
114 LOG.logDebug( "Stack trace: ", e );
115 return new GmlResult( request, new InvalidParameterValueException( "getgmlobject",
116 get( "WFS_NO_SUCH_FEATURE",
117 request.getObjectId() ) ) );
118 }
119 objectId = objectId.substring( 0, idx );
120 LOG.logDebug( "Trying to find geometry object number " + geom );
121 }
122
123 LOG.logDebug( "Feature ID: ", objectId );
124
125 Set<FeatureId> set = singleton( new FeatureId( objectId ) );
126 Filter filter = new FeatureFilter( new ArrayList<FeatureId>( set ) );
127
128 Datastore ds = type.getGMLSchema().getDatastore();
129
130 Query q = new Query( null, null, null, null, null, new QualifiedName[] { type.getName() }, null, null, filter,
131 null, -1, -1 );
132 try {
133 FeatureCollection col = ds.performQuery( q, new MappedFeatureType[] { type } );
134 if ( col.size() == 0 ) {
135 return new GmlResult( request, new InvalidParameterValueException( "getgmlobject",
136 get( "WFS_NO_SUCH_FEATURE",
137 request.getObjectId() ) ) );
138 }
139 Feature feature = col.getFeature( 0 );
140
141 // different formats are not supported anyway, so just use the first one
142 FormatType format = config.getFeatureTypeList().getFeatureType( type.getName() ).getOutputFormats()[0];
143
144 if ( geom > -1 ) {
145 try {
146 return new GmlResult( request, feature.getGeometryPropertyValues()[geom], format );
147 } catch ( ArrayIndexOutOfBoundsException e ) {
148 return new GmlResult( request, new InvalidParameterValueException( "getgmlobject",
149 get( "WFS_NO_SUCH_FEATURE",
150 request.getObjectId() ) ) );
151 }
152 }
153
154 return new GmlResult( request, feature, format );
155 } catch ( DatastoreException e ) {
156 LOG.logDebug( "Stack trace: ", e );
157 return new GmlResult( request, new OGCWebServiceException( "getgmlobject", e.getMessage() ) );
158 } catch ( UnknownCRSException e ) {
159 LOG.logDebug( "Stack trace: ", e );
160 return new GmlResult( request, new OGCWebServiceException( "getgmlobject", e.getMessage() ) );
161 }
162 }
163
164 }