ingo@118: package de.intevation.flys.artifacts.services;
ingo@118: 
ingo@133: import java.util.List;
ingo@133: 
ingo@118: import org.apache.log4j.Logger;
ingo@118: 
ingo@118: import org.w3c.dom.Document;
ingo@118: import org.w3c.dom.Element;
ingo@118: 
ingo@118: import de.intevation.artifacts.CallMeta;
ingo@118: 
ingo@118: import de.intevation.artifacts.common.ArtifactNamespaceContext;
ingo@118: import de.intevation.artifacts.common.utils.XMLUtils;
ingo@118: 
ingo@118: import de.intevation.artifactdatabase.DefaultService;
ingo@118: 
ingo@316: import de.intevation.flys.backend.SessionHolder;
ingo@133: import de.intevation.flys.model.River;
ingo@133: 
ingo@133: import de.intevation.flys.artifacts.model.RiverFactory;
ingo@133: 
sascha@314: import org.hibernate.Session;
ingo@118: 
ingo@118: /**
ingo@118:  * This service provides information about the supported rivers by this
ingo@118:  * application.
ingo@118:  *
ingo@118:  * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
ingo@118:  */
ingo@118: public class RiverService extends DefaultService {
ingo@118: 
ingo@118:     /** The logger used in this service.*/
ingo@118:     private static Logger logger = Logger.getLogger(RiverService.class);
ingo@118: 
ingo@118: 
ingo@118:     /**
ingo@118:      * The default constructor.
ingo@118:      */
ingo@118:     public RiverService() {
ingo@118:     }
ingo@118: 
ingo@118: 
ingo@118:     public Document process(
ingo@118:         Document data,
ingo@118:         Object   globalContext,
ingo@118:         CallMeta callMeta)
ingo@118:     {
ingo@118:         logger.debug("RiverService.process");
ingo@118: 
ingo@118:         Document result = XMLUtils.newDocument();
ingo@118: 
ingo@118:         XMLUtils.ElementCreator ec = new XMLUtils.ElementCreator(
ingo@118:             result,
ingo@118:             ArtifactNamespaceContext.NAMESPACE_URI,
ingo@118:             ArtifactNamespaceContext.NAMESPACE_PREFIX);
ingo@118: 
sascha@314:         Session session = SessionHolder.acquire();
sascha@314:         try {
sascha@314:             List<River> allRivers = RiverFactory.getRivers();
ingo@118: 
sascha@314:             Element rivers = ec.create("rivers");
ingo@118: 
sascha@314:             for (River river: allRivers) {
sascha@314:                 Element r = ec.create("river");
sascha@314:                 ec.addAttr(r, "name", river.getName(), true);
sascha@314: 
sascha@314:                 rivers.appendChild(r);
sascha@314:             }
sascha@314: 
sascha@314:             result.appendChild(rivers);
ingo@133:         }
sascha@314:         finally {
sascha@314:             session.close();
sascha@314:             SessionHolder.release();
sascha@314:         }
ingo@118: 
ingo@118:         return result;
ingo@118:     }
ingo@118: }
ingo@118: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :