teichmann@5844: /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
teichmann@5844:  * Software engineering by Intevation GmbH
teichmann@5844:  *
teichmann@5992:  * This file is Free Software under the GNU AGPL (>=v3)
teichmann@5844:  * and comes with ABSOLUTELY NO WARRANTY! Check out the
teichmann@5992:  * documentation coming with Dive4Elements River for details.
teichmann@5844:  */
teichmann@5844: 
teichmann@5829: package org.dive4elements.river.importer;
ingo@2808: 
ingo@2809: import java.util.List;
ingo@2809: 
ingo@2809: import org.apache.log4j.Logger;
ingo@2809: 
ingo@2809: import org.hibernate.Session;
ingo@2809: import org.hibernate.Query;
ingo@2809: 
teichmann@5829: import org.dive4elements.river.model.ElevationModel;
ingo@2808: 
ingo@2808: 
ingo@2808: public class ImportElevationModel {
ingo@2808: 
ingo@2809:     private static final Logger log =
ingo@2809:         Logger.getLogger(ImportElevationModel.class);
ingo@2809: 
ingo@2808:     protected String name;
ingo@2808: 
ingo@2808:     protected ImportUnit unit;
ingo@2808: 
ingo@2809:     protected ElevationModel peer;
ingo@2809: 
ingo@2808: 
ingo@2808:     public ImportElevationModel(String name, ImportUnit unit) {
ingo@2808:         this.name = name;
ingo@2808:         this.unit = unit;
ingo@2808:     }
ingo@2809: 
ingo@2809: 
ingo@2809:     public void storeDependencies() {
ingo@2809:         ElevationModel model = getPeer();
ingo@2809:     }
ingo@2809: 
ingo@2809:     public ElevationModel getPeer() {
ingo@3949:         if (unit == null) {
ingo@3949:             log.warn("No elevation model specified.");
ingo@3949:             return null;
ingo@3949:         }
sascha@3952: 
ingo@2809:         if (peer == null) {
tom@8856:             Session session = ImporterSession.getInstance()
tom@8856:                 .getDatabaseSession();
ingo@2809:             Query query = session.createQuery(
ingo@2809:                 "from ElevationModel where " +
ingo@2809:                 "name=:name and unit=:unit");
ingo@2809:             query.setParameter("name", name);
ingo@2809:             query.setParameter("unit", unit.getPeer());
ingo@2809:             List<ElevationModel> models = query.list();
ingo@2809: 
ingo@2809:             if (models.isEmpty()) {
ingo@2809:                 log.info("Create new ElevationModel DB instance.");
ingo@2809: 
ingo@2809:                 peer = new ElevationModel(name, unit.getPeer());
ingo@2809:                 session.save(peer);
ingo@2809:             }
ingo@2809:             else {
ingo@2809:                 peer = models.get(0);
ingo@2809:             }
ingo@2809:         }
ingo@2809: 
ingo@2809:         return peer;
ingo@2809:     }
ingo@2808: }
ingo@2808: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :