001    //$HeadURL: 
002    /*----------------------------------------------------------------------------
003     This file is part of deegree, http://deegree.org/
004     Copyright (C) 2001-2010 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.portal.cataloguemanager.control;
037    
038    import java.io.ByteArrayOutputStream;
039    import java.io.IOException;
040    import java.io.StringReader;
041    import java.net.URL;
042    import java.util.Enumeration;
043    import java.util.HashMap;
044    import java.util.List;
045    import java.util.Map;
046    
047    import javax.servlet.http.HttpServletRequest;
048    import javax.xml.bind.JAXBContext;
049    import javax.xml.bind.JAXBException;
050    import javax.xml.bind.Marshaller;
051    import javax.xml.bind.Unmarshaller;
052    
053    import org.apache.commons.httpclient.HttpException;
054    import org.apache.commons.httpclient.HttpMethod;
055    import org.deegree.enterprise.control.ajax.ResponseHandler;
056    import org.deegree.enterprise.control.ajax.WebEvent;
057    import org.deegree.framework.log.ILogger;
058    import org.deegree.framework.log.LoggerFactory;
059    import org.deegree.framework.util.FileUtils;
060    import org.deegree.framework.util.HttpUtils;
061    import org.deegree.framework.util.StringTools;
062    import org.deegree.framework.util.TimeTools;
063    import org.deegree.framework.xml.XMLFragment;
064    import org.deegree.portal.cataloguemanager.model.CICitation;
065    import org.deegree.portal.cataloguemanager.model.CIOnlineResource;
066    import org.deegree.portal.cataloguemanager.model.Date;
067    import org.deegree.portal.cataloguemanager.model.DistributionFormat;
068    import org.deegree.portal.cataloguemanager.model.ExceptionBean;
069    import org.deegree.portal.cataloguemanager.model.Linkage;
070    import org.deegree.portal.cataloguemanager.model.MDDataIdentification;
071    import org.deegree.portal.cataloguemanager.model.MDDigitalTransferOptions;
072    import org.deegree.portal.cataloguemanager.model.MDDistribution;
073    import org.deegree.portal.cataloguemanager.model.MDFormat;
074    import org.deegree.portal.cataloguemanager.model.MDLegalConstraints;
075    import org.deegree.portal.cataloguemanager.model.MDMetadata;
076    import org.deegree.portal.cataloguemanager.model.MDReferenceSystem;
077    import org.deegree.portal.cataloguemanager.model.MDRepresentativeFraction;
078    import org.deegree.portal.cataloguemanager.model.MetadataBean;
079    import org.deegree.portal.cataloguemanager.model.Name;
080    import org.deegree.portal.cataloguemanager.model.OnLine;
081    import org.deegree.portal.cataloguemanager.model.ParentIdentifier;
082    import org.deegree.portal.cataloguemanager.model.ResourceConstraints;
083    import org.deegree.portal.cataloguemanager.model.SpatialResolution;
084    import org.deegree.portal.cataloguemanager.model.TransferOptions;
085    import org.deegree.portal.cataloguemanager.model.Version;
086    import org.xml.sax.SAXException;
087    
088    /**
089     * 
090     * 
091     * 
092     * @author <a href="mailto:poth@lat-lon.de">Andreas Poth</a>
093     * @author last edited by: $Author: apoth $
094     * 
095     * @version $Revision: 30690 $, $Date: 2011-05-06 10:23:46 +0200 (Fr, 06 Mai 2011) $
096     */
097    public class UpdateMetadataListener extends InsertMetadataListener {
098    
099        private static final ILogger LOG = LoggerFactory.getLogger( UpdateMetadataListener.class );
100    
101        @Override
102        public void actionPerformed( WebEvent event, ResponseHandler responseHandler )
103                                throws IOException {
104    
105            try {
106                conf = getCatalogueManagerConfiguration( event );
107                MetadataBean bean = (MetadataBean) event.getAsBean();
108    
109                JAXBContext jc = JAXBContext.newInstance( "org.deegree.portal.cataloguemanager.model" );
110                Unmarshaller u = jc.createUnmarshaller();
111    
112                String tmp = conf.getTemplateURL( bean.getHlevel() );
113                URL url = conf.resolve( tmp );
114                MDMetadata mdMetadata = (MDMetadata) u.unmarshal( url );
115                tmp = bean.getHlevel();
116                if ( "series".equalsIgnoreCase( tmp ) ) {
117                    tmp = "datasetcollection";
118                }
119                if ( "dataset".equalsIgnoreCase( tmp ) && bean.getParentId() != null ) {
120                    ParentIdentifier pi = new ParentIdentifier();
121                    pi.setCharacterString( bean.getParentId() );
122                    mdMetadata.setParentIdentifier( pi );
123                }
124                mdMetadata.getHierarchyLevelName().setCharacterString( tmp );
125    
126                // metadata settings
127                mdMetadata.getFileIdentifier().setCharacterString( bean.getIdentifier() );
128                if ( "dataset".equalsIgnoreCase( bean.getHlevel() ) ) {
129                    mdMetadata.getParentIdentifier().setCharacterString( bean.getParentId() );
130                }
131                setContact( mdMetadata, bean );
132                mdMetadata.getDateStamp().setDateTime( TimeTools.getISOFormattedTime() );
133                if ( bean.getCrs() != null ) {
134                    MDReferenceSystem mdRef = mdMetadata.getReferenceSystemInfo().getMDReferenceSystem();
135                    mdRef.getReferenceSystemIdentifier().getRSIdentifier().getCode().setCharacterString( bean.getCrs() );
136                }
137    
138                // data identification settings
139                MDDataIdentification mdDataId = mdMetadata.getIdentificationInfo().getMDDataIdentification();
140                mdDataId.getAbstract().setCharacterString( bean.getAbstract_() );
141                setKeywords( mdDataId, bean );
142                setPointOfContact( mdDataId, bean );
143                mdDataId.getTopicCategory().setMDTopicCategoryCode( bean.getTopCat() );
144                setExtent( mdDataId, bean );
145                SpatialResolution spr = mdDataId.getSpatialResolution();
146                if ( bean.getScale() == null || bean.getScale().trim().length() == 0 ) {
147                    mdDataId.setSpatialResolution( null );
148                } else {
149                    MDRepresentativeFraction frac = spr.getMDResolution().getEquivalentScale().getMDRepresentativeFraction();
150                    frac.getDenominator().setInteger( Integer.parseInt( bean.getScale().trim() ) );
151                }
152    
153                CICitation citation = mdDataId.getCitation().getCICitation();
154                citation.getTitle().setCharacterString( bean.getDatasetTitle() );
155                citation.getIdentifier().getMDIdentifier().getCode().setCharacterString( bean.getIdentifier() );
156    
157                // citation dates
158                List<Date> dates = citation.getDate();
159                dates.clear();
160                if ( bean.getCreation() != null ) {
161                    addDate( dates, "creation", bean.getCreation() );
162                }
163                if ( bean.getPublication() != null ) {
164                    addDate( dates, "publication", bean.getPublication() );
165                }
166                if ( bean.getRevision() != null ) {
167                    addDate( dates, "revision", bean.getRevision() );
168                }
169    
170                // data access
171                if ( bean.getTransferOnline() != null && bean.getTransferOnline().trim().length() > 0 ) {
172                    setDistributionInfo( mdMetadata, bean );
173                } else {
174                    mdMetadata.setDistributionInfo( null );
175                }
176    
177                // lineage
178                if ( bean.getLineage() != null && bean.getLineage().trim().length() > 0 ) {
179                    mdMetadata.getDataQualityInfo().getDQDataQuality().getLineage().getLILineage().getStatement().setCharacterString(
180                                                                                                                                      bean.getLineage() );
181                } else {
182                    mdMetadata.setDataQualityInfo( null );
183                }
184    
185                // resource constraints
186                List<ResourceConstraints> list = mdMetadata.getIdentificationInfo().getMDDataIdentification().getResourceConstraints();
187                if ( bean.getAccessConstraints() == null ) {
188                    list.clear();
189                } else {
190                    MDLegalConstraints legal = null;
191                    for ( ResourceConstraints resourceConstraints : list ) {
192                        if ( resourceConstraints.getMDLegalConstraints() != null ) {
193                            legal = resourceConstraints.getMDLegalConstraints();
194                            legal.getAccessConstraints().getMDRestrictionCode().setCodeListValue(
195                                                                                                  bean.getAccessConstraints() );
196                            legal.getAccessConstraints().getMDRestrictionCode().setValue( bean.getAccessConstraints() );
197                        }
198                    }
199                }
200    
201                updateCSW( responseHandler, mdMetadata );
202    
203            } catch ( Exception e ) {
204                LOG.logError( e.getMessage(), e );
205                ExceptionBean eb = new ExceptionBean( getClass().getName(), e.getMessage() );
206                responseHandler.writeAndClose( true, eb );
207                return;
208            }
209    
210        }
211    
212        private void setDistributionInfo( MDMetadata mdMetadata, MetadataBean bean ) {
213            MDDistribution mddist = mdMetadata.getDistributionInfo().getMDDistribution();
214            if ( mddist == null ) {
215                mddist = new MDDistribution();
216                TransferOptions to = new TransferOptions();
217                MDDigitalTransferOptions dto = new MDDigitalTransferOptions();
218                OnLine ol = new OnLine();
219                CIOnlineResource ciolr = new CIOnlineResource();
220                ciolr.setLinkage( new Linkage() );
221                ol.setCIOnlineResource( ciolr );
222                dto.setOnLine( ol );
223                to.setMDDigitalTransferOptions( dto );
224                mddist.setTransferOptions( to );
225            }
226            MDDigitalTransferOptions to = mddist.getTransferOptions().getMDDigitalTransferOptions();
227            to.getOnLine().getCIOnlineResource().getLinkage().setURL( bean.getTransferOnline() );
228            if ( bean.getTransferFormatName() != null && bean.getTransferFormatName().length() > 0 ) {
229                DistributionFormat format = mdMetadata.getDistributionInfo().getMDDistribution().getDistributionFormat();
230                if ( format == null ) {
231                    format = new DistributionFormat();
232                    MDFormat mdf = new MDFormat();
233                    mdf.setName( new Name() );
234                    mdf.setVersion( new Version() );
235                    format.setMDFormat( mdf );
236                }
237                format.getMDFormat().getName().setCharacterString( bean.getTransferFormatName() );
238                if ( bean.getTransferFormatVersion() != null && bean.getTransferFormatVersion().length() > 0 ) {
239                    format.getMDFormat().getVersion().setCharacterString( bean.getTransferFormatVersion() );
240                } else {
241                    format.getMDFormat().getVersion().setCharacterString( "unknown" );
242                }
243            } else {
244                mdMetadata.getDistributionInfo().getMDDistribution().setDistributionFormat( null );
245            }
246        }
247    
248        @SuppressWarnings("unchecked")
249        private String updateCSW( ResponseHandler responseHandler, MDMetadata mdMetadata )
250                                throws JAXBException, IOException, HttpException, SAXException {
251    
252            JAXBContext jc = JAXBContext.newInstance( "org.deegree.portal.cataloguemanager.model" );
253            Marshaller m = jc.createMarshaller();
254    
255            ByteArrayOutputStream bos = new ByteArrayOutputStream( 10000 );
256            m.marshal( mdMetadata, bos );
257    
258            URL url = getClass().getResource( "update.xml" );
259            String s = FileUtils.readTextFile( url ).toString();
260            String t = new String( bos.toByteArray() );
261            int c = t.indexOf( "?>" );
262            t = t.substring( c + 2 );
263            s = StringTools.replace( s, "$id$", mdMetadata.getFileIdentifier().getCharacterString(), false );
264            s = StringTools.replace( s, "$data$", t, false );
265            String csw = conf.getCatalogueURL();
266    
267            XMLFragment xml = new XMLFragment( new StringReader( s ), XMLFragment.DEFAULT_URL );
268            Enumeration<String> en = ( (HttpServletRequest) getRequest() ).getHeaderNames();
269            Map<String, String> map = new HashMap<String, String>();
270            while ( en.hasMoreElements() ) {
271                String name = (String) en.nextElement();
272                if ( !name.equalsIgnoreCase( "accept-encoding" ) && !name.equalsIgnoreCase( "content-length" )
273                     && !name.equalsIgnoreCase( "user-agent" ) ) {
274                    map.put( name, ( (HttpServletRequest) getRequest() ).getHeader( name ) );
275                }
276            }
277            HttpMethod post = HttpUtils.performHttpPost( csw, xml, 60000, null, null, map );
278            s = post.getResponseBodyAsString();
279            if ( s.toLowerCase().indexOf( "exception" ) > -1 ) {
280                ExceptionBean eb = new ExceptionBean( getClass().getName(), "update failed" );
281                responseHandler.writeAndClose( true, eb );
282            } else {
283                responseHandler.writeAndClose( "insert performed" );
284            }
285    
286            return s;
287        }
288    
289    }