sascha@146: package de.intevation.flys.artifacts.model;
sascha@146: 
sascha@146: import java.util.List;
sascha@146: import java.util.Map;
sascha@146: import java.util.HashMap;
sascha@146: import java.util.Arrays;
sascha@146: 
sascha@146: import java.io.Serializable;
sascha@146: 
sascha@146: import org.hibernate.Session;
sascha@146: import org.hibernate.Query;
sascha@146: 
sascha@146: import org.apache.log4j.Logger;
sascha@146: 
ingo@315: import de.intevation.flys.backend.SessionHolder;
sascha@146: import de.intevation.flys.model.Gauge;
sascha@146: import de.intevation.flys.model.DischargeTable;
sascha@146: import de.intevation.flys.model.DischargeTableValue;
sascha@146: 
sascha@146: public class DischargeTables
sascha@146: implements   Serializable
sascha@146: {
sascha@146:     private static Logger log = Logger.getLogger(DischargeTables.class);
sascha@146: 
sascha@146:     protected List<String> gaugeNames;
sascha@146: 
sascha@146:     protected String riverName;
sascha@146: 
sascha@154:     protected double scale;
sascha@154: 
sascha@150:     protected Map<String, double [][]> values;
sascha@146: 
sascha@146:     public DischargeTables() {
sascha@146:     }
sascha@146: 
sascha@146:     public DischargeTables(String riverName, String [] gaugeNames) {
sascha@146:         this(riverName, Arrays.asList(gaugeNames));
sascha@146:     }
sascha@146: 
sascha@146:     public DischargeTables(String riverName, List<String> gaugeNames) {
sascha@154:         scale           = Double.NaN;
sascha@146:         this.riverName  = riverName;
sascha@146:         this.gaugeNames = gaugeNames;
sascha@146:     }
sascha@146: 
ingo@153:     public Map<String, double [][]> getValues(double scale) {
sascha@154:         if (values == null || scale != this.scale) {
ingo@153:             values = loadValues(scale);
sascha@154:             this.scale = scale;
sascha@146:         }
sascha@146:         return values;
sascha@146:     }
sascha@146: 
ingo@153:     protected Map<String, double [][]> loadValues(double scale) {
sascha@150:         Map<String, double [][]> values = new HashMap<String, double [][]>();
sascha@146: 
sascha@311:         Session session = SessionHolder.HOLDER.get();
sascha@146: 
sascha@311:         Query gaugeQuery = session.createQuery(
sascha@311:             "from Gauge where name=:gauge and river.name=:river");
sascha@311:         gaugeQuery.setParameter("river", riverName);
sascha@146: 
sascha@311:         for (String gaugeName: gaugeNames) {
sascha@311:             gaugeQuery.setParameter("gauge", gaugeName);
sascha@311:             List<Gauge> gauges = gaugeQuery.list();
sascha@311:             if (gauges.isEmpty()) {
sascha@311:                 log.warn(
sascha@311:                     "no gauge '"+gaugeName+"' at river '"+riverName+"'");
sascha@311:                 continue;
sascha@311:             }
sascha@311:             Gauge gauge = gauges.get(0);
sascha@146: 
sascha@311:             List<DischargeTable> tables = gauge.getDischargeTables();
sascha@146: 
sascha@311:             if (tables.isEmpty()) {
sascha@311:                 log.warn(
sascha@311:                     "no discharge table for gauge '" + gaugeName + "'");
sascha@311:                 continue;
sascha@146:             }
sascha@146: 
sascha@311:             // TODO: Filter by time interval
sascha@311:             DischargeTable table = tables.get(0);
sascha@311: 
sascha@311:             List<DischargeTableValue> dtvs =
sascha@311:                 table.getDischargeTableValues();
sascha@311: 
sascha@311:             double [][] vs = new double[2][dtvs.size()];
sascha@311: 
sascha@311:             int idx = 0;
sascha@311:             for (DischargeTableValue dtv: dtvs) {
sascha@311:                 vs[0][idx] = dtv.getQ().doubleValue() * scale;
sascha@311:                 vs[1][idx] = dtv.getW().doubleValue() * scale;
sascha@311:                 ++idx;
sascha@311:             }
sascha@311: 
sascha@311:             values.put(gaugeName, vs);
sascha@146:         }
sascha@311: 
sascha@311:         return values;
sascha@146:     }
sascha@146: }
sascha@146: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :