001    //$HeadURL: svn+ssh://jwilden@svn.wald.intevation.org/deegree/base/branches/2.5_testing/src/org/deegree/enterprise/servlet/AbstractOWServiceHandler.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.OutputStream;
039    
040    import javax.servlet.http.HttpServletResponse;
041    
042    import org.deegree.framework.log.ILogger;
043    import org.deegree.framework.log.LoggerFactory;
044    import org.deegree.framework.xml.XMLFragment;
045    import org.deegree.ogcwebservices.ExceptionReport;
046    import org.deegree.ogcwebservices.OGCWebServiceException;
047    import org.deegree.owscommon.XMLFactory;
048    
049    /**
050     * This class provides methods that are common to all services that comply to the OWS Common
051     * Implementation Specification 0.3.0.
052     * <p>
053     * At the moment, the only implemented functionality allows the sending of exception reports to the
054     * client, but in the future this may be extended by providing a method that sends responses to
055     * GetCapabilities requests.
056     * </p>
057     *
058     * @author <a href="mailto:schneider@lat-lon.de">Markus Schneider </a>
059     *
060     * @author last edited by: $Author: mschneider $
061     *
062     * @version 2.0, $Revision: 18195 $, $Date: 2009-06-18 17:55:39 +0200 (Do, 18 Jun 2009) $
063     *
064     * @since 2.0
065     */
066    abstract class AbstractOWServiceHandler implements ServiceDispatcher {
067    
068        // private static final String RESPONSE_TYPE = "application/vnd.ogc.se_xml";
069        private static final String RESPONSE_TYPE = "text/xml";
070    
071        private static ILogger LOG = LoggerFactory.getLogger( AbstractOWServiceHandler.class );
072    
073        /**
074         * Sends an exception report to the client. The exception report complies to the OWS Common
075         * Implementation Specification 0.3.0.
076         *
077         * @param httpResponse
078         * @param serviceException
079         */
080        public void sendException( HttpServletResponse httpResponse, OGCWebServiceException serviceException ) {
081    
082            ExceptionReport report = new ExceptionReport( new OGCWebServiceException[] { serviceException } );
083            try {
084                httpResponse.setContentType( RESPONSE_TYPE );
085                XMLFragment reportDocument = XMLFactory.export( report );
086                OutputStream os = httpResponse.getOutputStream();
087                reportDocument.write( os );
088                os.close();
089            } catch ( Exception e ) {
090                LOG.logError( "Error sending exception report: ", e );
091            }
092    
093        }
094    
095        /**
096         * Sends an exception report to the client. The exception report complies to the OWS Common
097         * Implementation Specification 0.3.0.
098         *
099         * @param httpResponse
100         * @param serviceException
101         */
102        public void sendException( HttpServletResponse httpResponse, Exception serviceException ) {
103    
104            OGCWebServiceException ogc = new OGCWebServiceException( serviceException.getMessage() );
105    
106            ExceptionReport report = new ExceptionReport( new OGCWebServiceException[] { ogc } );
107            try {
108                httpResponse.setContentType( RESPONSE_TYPE );
109                XMLFragment reportDocument = XMLFactory.export( report );
110                OutputStream os = httpResponse.getOutputStream();
111                reportDocument.write( os );
112                os.close();
113            } catch ( Exception e ) {
114                LOG.logError( "Error sending exception report: ", e );
115            }
116    
117        }
118    
119        /**
120         * @param response
121         * @param exception
122         */
123        public void sendExceptionReport( HttpServletResponse response, Exception exception ) {
124            OGCWebServiceException ogc;
125            if ( exception instanceof OGCWebServiceException ) {
126                ogc = (OGCWebServiceException) exception;
127            } else {
128                ogc = new OGCWebServiceException( exception.getMessage() );
129            }
130    
131            ExceptionReport report = new ExceptionReport( new OGCWebServiceException[] { ogc } );
132            try {
133                response.setContentType( RESPONSE_TYPE );
134                XMLFragment reportDocument = XMLFactory.exportExceptionReport( report );
135                OutputStream os = response.getOutputStream();
136                reportDocument.prettyPrint( os );
137                os.close();
138            } catch ( Exception e ) {
139                LOG.logError( "Error sending exception report: ", e );
140            }
141        }
142    
143    }