001 //$HeadURL: https://svn.wald.intevation.org/svn/deegree/base/branches/2.3_testing/src/org/deegree/ogcwebservices/sos/WFSRequester.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.sos;
037
038 import java.io.ByteArrayInputStream;
039 import java.io.ByteArrayOutputStream;
040 import java.io.IOException;
041
042 import javax.xml.parsers.ParserConfigurationException;
043 import javax.xml.transform.TransformerException;
044
045 import org.deegree.framework.log.ILogger;
046 import org.deegree.framework.log.LoggerFactory;
047 import org.deegree.framework.xml.XMLParsingException;
048 import org.deegree.framework.xml.XMLTools;
049 import org.deegree.model.feature.FeatureCollection;
050 import org.deegree.model.feature.GMLFeatureAdapter;
051 import org.deegree.ogcwebservices.OGCWebService;
052 import org.deegree.ogcwebservices.wfs.operation.FeatureResult;
053 import org.deegree.ogcwebservices.wfs.operation.GetFeature;
054 import org.w3c.dom.Document;
055 import org.xml.sax.SAXException;
056
057 /**
058 * sends a request to a WFS and checks the result for errors
059 *
060 * @author <a href="mailto:mkulbe@lat-lon.de">Matthias Kulbe </a>
061 * @author last edited by: $Author:wanhoff$
062 *
063 * @version $Revision: 18195 $, $Date:20.03.2007$
064 */
065 public class WFSRequester {
066
067 private static ILogger LOG = LoggerFactory.getLogger( WFSRequester.class );
068
069 /**
070 *
071 * @param request
072 * @param ows
073 * @return the resulting document
074 * @throws Exception
075 * @throws IOException
076 * @throws SAXException
077 * @throws ParserConfigurationException
078 * @throws XMLParsingException
079 * @throws TransformerException
080 */
081 public static Document sendWFSrequest( Document request, OGCWebService ows )
082 throws Exception {
083
084 GetFeature getFeature = GetFeature.create( "ID-" + System.currentTimeMillis(), request.getDocumentElement() );
085 FeatureResult result = (FeatureResult) ows.doService( getFeature );
086 ByteArrayOutputStream bos = new ByteArrayOutputStream( 100000 );
087
088 new GMLFeatureAdapter().export( (FeatureCollection) result.getResponse(), bos );
089
090 Document resultDoc = XMLTools.parse( new ByteArrayInputStream( bos.toByteArray() ) );
091
092 String nn = resultDoc.getDocumentElement().getLocalName();
093
094 if ( "FeatureCollection".equals( nn ) ) {
095 return resultDoc;
096 }
097 LOG.logDebug( "error: invalid wfs result" );
098 throw new XMLParsingException( "returned document doesn't contain a valid " + "WFS GetFeature response" );
099
100 }
101
102 }