001    //$HeadURL: svn+ssh://jwilden@svn.wald.intevation.org/deegree/base/branches/2.5_testing/src/org/deegree/ogcwebservices/sos/SOService.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.IOException;
039    
040    import javax.xml.transform.TransformerException;
041    
042    import org.deegree.framework.log.ILogger;
043    import org.deegree.framework.log.LoggerFactory;
044    import org.deegree.framework.trigger.TriggerProvider;
045    import org.deegree.framework.xml.XMLParsingException;
046    import org.deegree.ogcwebservices.InvalidParameterValueException;
047    import org.deegree.ogcwebservices.OGCWebService;
048    import org.deegree.ogcwebservices.OGCWebServiceException;
049    import org.deegree.ogcwebservices.OGCWebServiceRequest;
050    import org.deegree.ogcwebservices.getcapabilities.OGCCapabilities;
051    import org.deegree.ogcwebservices.sos.capabilities.SOSGetCapabilities;
052    import org.deegree.ogcwebservices.sos.configuration.SOSConfiguration;
053    import org.deegree.ogcwebservices.sos.configuration.SOSDeegreeParams;
054    import org.deegree.ogcwebservices.sos.describeplatform.DescribePlatformRequest;
055    import org.deegree.ogcwebservices.sos.describeplatform.DescribePlatformResult;
056    import org.deegree.ogcwebservices.sos.describeplatform.PlatformDescriptionDocument;
057    import org.deegree.ogcwebservices.sos.describeplatform.PlatformMetadata;
058    import org.deegree.ogcwebservices.sos.describesensor.DescribeSensorRequest;
059    import org.deegree.ogcwebservices.sos.describesensor.DescribeSensorResult;
060    import org.deegree.ogcwebservices.sos.describesensor.SensorDescriptionDocument;
061    import org.deegree.ogcwebservices.sos.describesensor.SensorMetadata;
062    import org.deegree.ogcwebservices.sos.getobservation.GetObservationDocument;
063    import org.deegree.ogcwebservices.sos.getobservation.GetObservationRequest;
064    import org.deegree.ogcwebservices.sos.getobservation.GetObservationResult;
065    import org.deegree.ogcwebservices.sos.om.ObservationArray;
066    import org.xml.sax.SAXException;
067    
068    /**
069     * @author <a href="mailto:mkulbe@lat-lon.de">Matthias Kulbe </a>
070     * @author last edited by: $Author: mschneider $
071     *
072     * @version $Revision: 18195 $, $Date: 2009-06-18 17:55:39 +0200 (Do, 18 Jun 2009) $
073     */
074    public class SOService implements OGCWebService {
075    
076        private SOSConfiguration serviceConfiguration;
077    
078        private static final ILogger LOG = LoggerFactory.getLogger( SOService.class );
079    
080        private static final TriggerProvider TP = TriggerProvider.create( SOService.class );
081    
082        /**
083         * static create method to create a new instance of the SCService
084         *
085         * @param scsConfiguration
086         * @return the new instance
087         *
088         */
089        public static SOService create( SOSConfiguration scsConfiguration ) {
090            return new SOService( scsConfiguration );
091    
092        }
093    
094        /**
095         * privater constructor to construct a new SCService instance with the configuration as the only
096         * parameter
097         *
098         * @param scsConfiguration
099         *
100         */
101        private SOService( SOSConfiguration scsConfiguration ) {
102            this.serviceConfiguration = scsConfiguration;
103        }
104    
105        /**
106         * returns the ServiceTypeId from the ServiceIdentification section of the configuration
107         *
108         * @return the ServiceTypeId from the ServiceIdentification section of the configuration
109         */
110        public String getServiceTypeId() {
111            return this.serviceConfiguration.getServiceIdentification().getServiceType().getCode();
112    
113        }
114    
115        /**
116         * returns the Version from the configuration
117         *
118         * @return the Version from the configuration
119         */
120        public String getVersion() {
121            return serviceConfiguration.getVersion();
122        }
123    
124        /**
125         * returns the serviceConfiguration
126         *
127         * @return the serviceConfiguration
128         */
129        public OGCCapabilities getCapabilities() {
130            return this.serviceConfiguration;
131        }
132    
133        /**
134         * checks the request and do service
135         *
136         * @throws OGCWebServiceException
137         */
138        public Object doService( OGCWebServiceRequest request )
139                                throws OGCWebServiceException {
140    
141            request = (OGCWebServiceRequest) TP.doPreTrigger( this, request )[0];
142    
143            Object response = null;
144            try {
145                if ( request instanceof SOSGetCapabilities ) {
146                    LOG.logDebug( "-> GetCapabilities received" );
147                    response = this.getCapabilities();
148                } else if ( request instanceof DescribePlatformRequest ) {
149                    LOG.logDebug( "-> DescribePlatform received" );
150                    response = this.describePlatform( (DescribePlatformRequest) request );
151                } else if ( request instanceof DescribeSensorRequest ) {
152                    LOG.logDebug( "-> DescribeSensor received" );
153                    response = this.describeSensor( (DescribeSensorRequest) request );
154                } else if ( request instanceof GetObservationRequest ) {
155                    LOG.logDebug( "-> GetObservation received" );
156                    response = this.getObservation( (GetObservationRequest) request );
157                } else {
158                    throw new InvalidParameterValueException( "not a valid scs request" );
159                }
160            } catch ( Exception e ) {
161                LOG.logError( e.getMessage(), e );
162                throw new OGCWebServiceException( "SOS Failure\n" + e.getMessage() );
163            }
164    
165            return TP.doPostTrigger( this, response )[0];
166        }
167    
168        /**
169         * returns a DescribePlatformResult
170         *
171         * @param request
172         * @return a DescribePlatformResult
173         * @throws InvalidParameterValueException
174         * @throws OGCWebServiceException
175         */
176        private DescribePlatformResult describePlatform( DescribePlatformRequest request )
177                                throws InvalidParameterValueException, OGCWebServiceException {
178    
179            // validate the requested platforms
180            String[] types = request.getTypeNames();
181    
182            for ( int i = 0; i < types.length; i++ ) {
183                if ( serviceConfiguration.getSOSDeegreeParams().getPlatformConfiguration( types[i] ) == null ) {
184                    throw new OGCWebServiceException( "InvalidParameterValueException: Platform '" + types[i]
185                                                      + "' not found" );
186                }
187            }
188    
189            PlatformDescriptionDocument pdd = new PlatformDescriptionDocument();
190            PlatformMetadata[] pm = pdd.getPlatform( serviceConfiguration.getSOSDeegreeParams(), types );
191    
192            return new DescribePlatformResult( request, pm );
193        }
194    
195        /**
196         * returns a DescribeSensorResult
197         *
198         * @param request
199         * @return a DescribeSensorResult
200         * @throws InvalidParameterValueException
201         * @throws OGCWebServiceException
202         */
203        private DescribeSensorResult describeSensor( DescribeSensorRequest request )
204                                throws InvalidParameterValueException, OGCWebServiceException {
205    
206            // validate the requested sensors
207            String[] types = request.getTypeNames();
208    
209            for ( int i = 0; i < types.length; i++ ) {
210                if ( serviceConfiguration.getSOSDeegreeParams().getSensorConfiguration( types[i] ) == null ) {
211                    throw new OGCWebServiceException( "InvalidParameterValueException: Sensor '" + types[i] + "' not found" );
212                }
213            }
214    
215            SensorDescriptionDocument sdd = new SensorDescriptionDocument();
216            SensorMetadata[] sensors = sdd.getSensor( serviceConfiguration.getSOSDeegreeParams(), request.getTypeNames() );
217            return new DescribeSensorResult( request, sensors );
218    
219        }
220    
221        /**
222         * returns a GetObservationResult
223         *
224         * @param request
225         * @return a GetObservationResult
226         * @throws OGCWebServiceException
227         * @throws XMLParsingException
228         * @throws IOException
229         * @throws SAXException
230         * @throws TransformerException
231         */
232        private GetObservationResult getObservation( GetObservationRequest request )
233                                throws OGCWebServiceException, XMLParsingException, TransformerException, IOException,
234                                SAXException {
235    
236            SOSDeegreeParams dp = serviceConfiguration.getSOSDeegreeParams();
237    
238            // validate the requested platforms
239            String[] platforms = request.getPlatforms();
240            for ( int i = 0; i < platforms.length; i++ ) {
241                if ( dp.getPlatformConfiguration( platforms[i] ) == null ) {
242                    throw new OGCWebServiceException( "InvalidParameterValueException: Platform '" + platforms[i]
243                                                      + "' not found" );
244                }
245            }
246    
247            // validate the requested sensors
248            String[] sensors = request.getSensors();
249            for ( int i = 0; i < sensors.length; i++ ) {
250                if ( dp.getSensorConfiguration( sensors[i] ) == null ) {
251                    throw new OGCWebServiceException( "InvalidParameterValueException: Sensor '" + sensors[i]
252                                                      + "' not found" );
253                }
254            }
255    
256            GetObservationDocument god = new GetObservationDocument();
257            ObservationArray[] obAr = god.getObservations( serviceConfiguration.getSOSDeegreeParams(), request );
258            return new GetObservationResult( request, obAr );
259        }
260    }