001 //$HeadURL: svn+ssh://jwilden@svn.wald.intevation.org/deegree/base/branches/2.5_testing/src/org/deegree/ogcwebservices/wps/describeprocess/DescribeProcessRequestHandler.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.wps.describeprocess;
037
038 import java.util.ArrayList;
039 import java.util.List;
040 import java.util.Map;
041
042 import org.deegree.datatypes.Code;
043 import org.deegree.framework.log.ILogger;
044 import org.deegree.framework.log.LoggerFactory;
045 import org.deegree.ogcwebservices.InvalidParameterValueException;
046 import org.deegree.ogcwebservices.OGCWebServiceException;
047 import org.deegree.ogcwebservices.wps.WPService;
048 import org.deegree.ogcwebservices.wps.configuration.WPSConfiguration;
049 import org.deegree.ogcwebservices.wps.execute.Process;
050
051 /**
052 * DescribeProcessRequestHandler.java
053 *
054 * Created on 10.03.2006. 12:06:58h
055 *
056 * @author <a href="mailto:christian@kiehle.org">Christian Kiehle</a>
057 * @author <a href="mailto:christian.heier@gmx.de">Christian Heier</a>
058 *
059 * @version 1.0.
060 *
061 * @since 2.0
062 */
063
064 public class DescribeProcessRequestHandler {
065
066 private static ILogger LOG = LoggerFactory.getLogger( DescribeProcessRequestHandler.class );
067
068 private WPService wpService = null;
069
070 /**
071 *
072 * @param wpService
073 */
074 public DescribeProcessRequestHandler( WPService wpService ) {
075 this.wpService = wpService;
076 }
077
078 /**
079 *
080 * @param describeProcessRequest
081 * @return the describtion of the process.
082 * @throws OGCWebServiceException
083 */
084 public ProcessDescriptions handleRequest( DescribeProcessRequest describeProcessRequest )
085 throws OGCWebServiceException {
086
087 // Get configuration from current wps instance
088 WPSConfiguration wpsConfiguration = wpService.getConfiguration();
089
090 // Get the map of registered Processes from wps configuration
091 Map<String, Process> processesMap = wpsConfiguration.getRegisteredProcesses();
092
093 // Get list of requested process descriptions from
094 // wpsDescribeProcessRequest
095 List<Code> requestedProcessesList = describeProcessRequest.getIdentifier();
096
097 // Prepare list of process description to return
098 List<ProcessDescription> processDescriptionList = new ArrayList<ProcessDescription>();
099
100 // If the requested process is registered in current wps instance add it to processDescriptions, otherwise throw
101 // exception
102 int requestedProcessesSize = requestedProcessesList.size();
103 for ( int i = 0; i < requestedProcessesSize; i++ ) {
104
105 Code requestedProcess = requestedProcessesList.get( i );
106
107 String identifier = requestedProcess.getCode().toUpperCase();
108
109 if ( processesMap.containsKey( identifier ) ) {
110
111 Process process = processesMap.get( identifier );
112
113 ProcessDescription processDescription = process.getProcessDescription();
114 processDescriptionList.add( i, processDescription );
115
116 } else {
117 String msg = "Process '" + identifier + "' is not supported by this WPS.";
118 LOG.logError( msg );
119 throw new InvalidParameterValueException( "Identifier", msg );
120 }
121 }
122 return new ProcessDescriptions( processDescriptionList );
123 }
124
125 }