001 //$HeadURL: https://svn.wald.intevation.org/svn/deegree/base/branches/2.3_testing/src/org/deegree/enterprise/servlet/SOSHandler.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.enterprise.servlet;
037
038 import java.io.IOException;
039 import java.io.OutputStream;
040
041 import javax.servlet.http.HttpServletResponse;
042
043 import org.deegree.enterprise.ServiceException;
044 import org.deegree.framework.log.ILogger;
045 import org.deegree.framework.log.LoggerFactory;
046 import org.deegree.framework.xml.XMLFragment;
047 import org.deegree.ogcwebservices.OGCWebServiceException;
048 import org.deegree.ogcwebservices.OGCWebServiceRequest;
049 import org.deegree.ogcwebservices.sos.SOService;
050 import org.deegree.ogcwebservices.sos.SOServiceFactory;
051 import org.deegree.ogcwebservices.sos.XMLFactory;
052 import org.deegree.ogcwebservices.sos.capabilities.SOSCapabilities;
053 import org.deegree.ogcwebservices.sos.describeplatform.DescribePlatformResult;
054 import org.deegree.ogcwebservices.sos.describesensor.DescribeSensorResult;
055 import org.deegree.ogcwebservices.sos.getobservation.GetObservationResult;
056
057 /**
058 * Web servlet client for WFS.
059 *
060 * @author <a href="mailto:mkulbe@lat-lon.de">Matthias Kulbe</a>
061 * @author last edited by: $Author: mschneider $
062 *
063 * @version $Revision: 18195 $, $Date: 2009-06-18 17:55:39 +0200 (Do, 18. Jun 2009) $
064 */
065 class SOSHandler extends AbstractOWServiceHandler {
066
067 private static ILogger LOG = LoggerFactory.getLogger( SOSHandler.class );
068
069 /**
070 *
071 */
072 SOSHandler() {
073 LOG.logDebug( "New SOSHandler instance created: " + this.getClass().getName() );
074 }
075
076 /**
077 * @param request
078 * @param response
079 * @throws ServiceException
080 * @throws OGCWebServiceException
081 * @see "org.deegree.enterprise.servlet.ServiceDispatcher#perform(org.deegree.services.AbstractOGCWebServiceRequest,javax.servlet.http.HttpServletResponse)"
082 */
083 public void perform( OGCWebServiceRequest request, HttpServletResponse response )
084 throws ServiceException, OGCWebServiceException {
085
086 Object serviceRes = this.getService().doService( request );
087
088 if ( serviceRes instanceof OGCWebServiceException ) {
089 sendException( response, (OGCWebServiceException) serviceRes );
090 } else if ( response instanceof Exception ) {
091 sendException( response, (Exception) serviceRes );
092 } else if ( serviceRes instanceof SOSCapabilities ) {
093 XMLFragment doc = XMLFactory.export( (SOSCapabilities) serviceRes );
094 createResponse( response, doc );
095 } else if ( serviceRes instanceof DescribePlatformResult ) {
096 XMLFragment doc = XMLFactory.export( (DescribePlatformResult) serviceRes );
097 createResponse( response, doc );
098 } else if ( serviceRes instanceof DescribeSensorResult ) {
099 XMLFragment doc = XMLFactory.export( (DescribeSensorResult) serviceRes );
100 createResponse( response, doc );
101 } else if ( serviceRes instanceof GetObservationResult ) {
102 XMLFragment doc = XMLFactory.export( (GetObservationResult) serviceRes );
103 createResponse( response, doc );
104 } else {
105
106 String mesgFragment = null;
107 if ( response == null ) {
108 mesgFragment = "null response object";
109 } else {
110 mesgFragment = response.getClass().getName();
111 }
112
113 OGCWebServiceException e = new OGCWebServiceException( getClass().getName(), "Unknown response class: "
114 + mesgFragment );
115 sendException( response, e );
116 }
117 }
118
119 private void createResponse( HttpServletResponse response, XMLFragment doc )
120 throws OGCWebServiceException {
121
122 try {
123 OutputStream os = response.getOutputStream();
124 doc.write( os );
125 os.close();
126 } catch ( IOException e ) {
127 throw new OGCWebServiceException( "SCS Web Service failed." );
128 }
129
130 }
131
132 /**
133 * @return Service
134 * @throws ServiceException
135 */
136 /*
137 * (non-Javadoc)
138 *
139 * @see org.deegree.enterprise.servlet.ServiceDispatcher#setConfiguration(java.net.URL)
140 */
141 public SOService getService()
142 throws ServiceException {
143 SOService service = null;
144 try {
145 service = SOServiceFactory.getService();
146 } catch ( Exception e ) {
147 LOG.logError( e.getMessage(), e );
148 throw new ServiceException( e );
149 }
150 return service;
151 }
152 }