001    //$HeadURL: svn+ssh://jwilden@svn.wald.intevation.org/deegree/base/branches/2.5_testing/src/org/deegree/ogcwebservices/wmps/operation/DescribeTemplate.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.wmps.operation;
037    
038    import java.util.HashMap;
039    import java.util.Map;
040    
041    import org.deegree.framework.xml.XMLParsingException;
042    import org.deegree.framework.xml.XMLTools;
043    import org.deegree.ogcbase.CommonNamespaces;
044    import org.deegree.ogcwebservices.InconsistentRequestException;
045    import org.w3c.dom.Element;
046    
047    /**
048     * Can be requested as KVP:
049     * <p>
050     * ...?request=DescribeTemplate&version=1.0.0&template=MyTemplate
051     * </p>
052     * or as XML:
053     * <p>
054     * 
055     * <pre>
056     * ...
057     * </pre>
058     * 
059     * </p>
060     * 
061     * @author <a href="mailto:name@deegree.org">Andreas Poth</a>
062     * @author last edited by: $Author: apoth $
063     * 
064     * @version $Revision: 21672 $, $Date: 2009-12-29 09:44:20 +0100 (Di, 29 Dez 2009) $
065     */
066    public class DescribeTemplate extends WMPSRequestBase {
067    
068        private static final long serialVersionUID = 536568315562438781L;
069    
070        private String template;
071    
072        /**
073         * 
074         * @param id
075         * @param version
076         * @param template
077         * @param vendorSpecificParameter
078         */
079        public DescribeTemplate( String id, String version, String template, Map<String, String> vendorSpecificParameter ) {
080            super( version, id, vendorSpecificParameter );
081            this.template = template;
082        }
083    
084        /**
085         * 
086         * @param parameter
087         * @return new {@link DescribeTemplate}
088         * @throws InconsistentRequestException 
089         */
090        public static DescribeTemplate create( Map<String, String> parameter ) throws InconsistentRequestException{
091            String id = "" + System.currentTimeMillis();
092            String version = retrieveVersionParameter( parameter );
093            String tempplate = retrieveTemplateParameter( parameter );
094            return new DescribeTemplate( id, version, tempplate, parameter );
095        }
096    
097        /**
098         * 
099         * @param request
100         * @return new {@link DescribeTemplate}
101         * @throws XMLParsingException
102         */
103        public static DescribeTemplate create( Element request )
104                                throws XMLParsingException {
105            String id = "" + System.currentTimeMillis();
106            String version;
107            try {
108                version = XMLTools.getRequiredAttrValue( "version", null, request );
109            } catch ( Exception e ) {
110                throw new XMLParsingException( "Error parsing required attribute 'Version'. " + e.getMessage() );
111            }
112            String template = null;
113            try {
114                version = XMLTools.getRequiredNodeAsString( request, "deegreewmps:Template",
115                                                            CommonNamespaces.getNamespaceContext() );
116            } catch ( Exception e ) {
117                throw new XMLParsingException( "Error parsing required  element 'Template'. " + e.getMessage() );
118            }
119            return new DescribeTemplate( id, version, template, new HashMap<String, String>() );
120        }
121    
122        /**
123         * Parse 'Version' Parameter.
124         * 
125         * @param model
126         * @return String version (default=1.0.0)
127         */
128        private static String retrieveVersionParameter( Map<String, String> model ) {
129    
130            String version = null;
131            if ( model.containsKey( "VERSION" ) ) {
132                version = (String) model.remove( "VERSION" );
133            }
134            if ( version == null ) {
135                /** default value set as per the WMPS draft specifications. */
136                version = "1.0.0";
137            }
138    
139            return version;
140        }
141    
142        /**
143         * Parse 'Template' Parameter.
144         * 
145         * @param model
146         * @return template to describe
147         * @throws InconsistentRequestException 
148         */
149        private static String retrieveTemplateParameter( Map<String, String> model ) throws InconsistentRequestException{
150    
151            String template = null;
152            if ( model.containsKey( "TEMPLATE" ) ) {
153                template = (String) model.remove( "TEMPLATE" );
154            }
155            if ( template == null ) {
156                throw new InconsistentRequestException( "parameter template must be set" );
157            }
158    
159            return template;
160        }
161        
162        /**
163         * 
164         * @return template name
165         */
166        public String getTemplate() {
167            return template;
168        }
169    
170    }