001    //$HeadURL: https://svn.wald.intevation.org/svn/deegree/base/branches/2.3_testing/src/org/deegree/ogcwebservices/wps/capabilities/WPSCapabilitiesDocument.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    
037    package org.deegree.ogcwebservices.wps.capabilities;
038    
039    import static org.deegree.ogcwebservices.wps.capabilities.WPSOperationsMetadata.DESCRIBEPROCESS;
040    import static org.deegree.ogcwebservices.wps.capabilities.WPSOperationsMetadata.EXECUTE;
041    
042    import java.io.IOException;
043    import java.net.URL;
044    import java.util.HashMap;
045    import java.util.List;
046    import java.util.Map;
047    
048    import org.deegree.framework.log.ILogger;
049    import org.deegree.framework.log.LoggerFactory;
050    import org.deegree.framework.xml.XMLParsingException;
051    import org.deegree.framework.xml.XMLTools;
052    import org.deegree.ogcwebservices.getcapabilities.InvalidCapabilitiesException;
053    import org.deegree.ogcwebservices.getcapabilities.OGCCapabilities;
054    import org.deegree.ogcwebservices.getcapabilities.Operation;
055    import org.deegree.ogcwebservices.getcapabilities.OperationsMetadata;
056    import org.deegree.owscommon.OWSCommonCapabilitiesDocument;
057    import org.deegree.owscommon.OWSDomainType;
058    import org.w3c.dom.Element;
059    import org.w3c.dom.Node;
060    import org.xml.sax.SAXException;
061    
062    /**
063     * WPSCapabilitiesDocument.java
064     *
065     * Creates an object representation of the sample_wps_capabilities.xml document
066     *
067     * Created on 08.03.2006. 18:57:37h
068     *
069     * @author <a href="mailto:christian@kiehle.org">Christian Kiehle</a>
070     * @author <a href="mailto:christian.heier@gmx.de">Christian Heier</a>
071     *
072     * @version 1.0.
073     *
074     * @since 2.0
075     */
076    public class WPSCapabilitiesDocument extends OWSCommonCapabilitiesDocument {
077    
078        /**
079             *
080             */
081            private static final long serialVersionUID = -4004369952171016830L;
082    
083            private static final ILogger LOG = LoggerFactory.getLogger( WPSCapabilitiesDocument.class );
084    
085        private static final String XML_TEMPLATE = "WPSCapabilitiesTemplate.xml";
086    
087        /**
088         * @throws IOException
089         * @throws SAXException
090         */
091        public void createEmptyDocument()
092                                throws IOException, SAXException {
093            URL url = WPSCapabilitiesDocument.class.getResource( XML_TEMPLATE );
094            if ( null == url ) {
095                throw new IOException( "The resource '" + XML_TEMPLATE + " ' could not be found" );
096            }
097            load( url );
098        }
099    
100        /*
101         * (non-Javadoc)
102         *
103         * @see org.deegree.ogcwebservices.getcapabilities.OGCCapabilitiesDocument#parseCapabilities()
104         */
105        @Override
106        public OGCCapabilities parseCapabilities()
107                                throws InvalidCapabilitiesException {
108            try {
109    
110                return new WPSCapabilities( parseVersion(), parseUpdateSequence(), getServiceIdentification(),
111                                            getServiceProvider(), getOperationsMetadata(), null );
112            } catch ( Exception e ) {
113                LOG.logError( e.getMessage(), e );
114                throw new InvalidCapabilitiesException( e.getMessage() );
115            }
116        }
117    
118        /**
119         * Creates an object representation of the <code>ows:OperationsMetadata</code> section.
120         *
121         * @return object representation of the <code>ows:OperationsMetadata</code> section
122         * @throws XMLParsingException
123         */
124        @SuppressWarnings("unchecked")
125        public OperationsMetadata getOperationsMetadata()
126                                throws XMLParsingException {
127    
128            List operationElementList = XMLTools.getNodes( getRootElement(), "ows:OperationsMetadata/ows:Operation",
129                                                           nsContext );
130    
131            // build HashMap of 'ows:Operation'-elements for easier access
132            Map operations = new HashMap();
133            for ( int i = 0; i < operationElementList.size(); i++ ) {
134                operations.put(
135                                XMLTools.getRequiredNodeAsString( (Node) operationElementList.get( i ), "@name", nsContext ),
136                                operationElementList.get( i ) );
137            }
138    
139            Operation getCapabilities = getOperation( OperationsMetadata.GET_CAPABILITIES_NAME, true, operations );
140            Operation describeProcess = getOperation( DESCRIBEPROCESS, true, operations );
141            Operation execute = getOperation( EXECUTE, true, operations );
142    
143            List parameterElementList = XMLTools.getNodes( getRootElement(), "ows:OperationsMetadata/ows:Parameter",
144                                                           nsContext );
145            OWSDomainType[] parameters = new OWSDomainType[parameterElementList.size()];
146            for ( int i = 0; i < parameters.length; i++ ) {
147                parameters[i] = getOWSDomainType( null, (Element) parameterElementList.get( i ) );
148            }
149    
150            List constraintElementList = XMLTools.getNodes( getRootElement(), "ows:OperationsMetadata/ows:Constraint",
151                                                            nsContext );
152            OWSDomainType[] constraints = new OWSDomainType[constraintElementList.size()];
153            for ( int i = 0; i < constraints.length; i++ ) {
154                constraints[i] = getOWSDomainType( null, (Element) constraintElementList.get( i ) );
155            }
156            WPSOperationsMetadata metadata = new WPSOperationsMetadata( getCapabilities, describeProcess, execute,
157                                                                        parameters, constraints );
158    
159            return metadata;
160        }
161    
162    }