bjoern@3936: package de.intevation.flys.artifacts.model;
bjoern@3936: 
bjoern@3936: import java.util.Arrays;
bjoern@3936: import java.util.Map;
bjoern@3936: 
bjoern@3936: import de.intevation.artifacts.Artifact;
bjoern@3936: import de.intevation.artifacts.CallContext;
bjoern@3936: 
bjoern@3936: import de.intevation.artifactdatabase.state.DefaultFacet;
bjoern@3936: import de.intevation.artifactdatabase.state.Facet;
bjoern@3936: 
teichmann@3986: import de.intevation.flys.artifacts.FLYSArtifact;
teichmann@3986: 
bjoern@3936: import de.intevation.flys.model.Gauge;
bjoern@3936: 
teichmann@3986: import de.intevation.flys.utils.FLYSUtils;
teichmann@3986: 
teichmann@3986: import org.apache.log4j.Logger;
teichmann@3986: 
bjoern@3936: /**
bjoern@3936:  * A Facet that returns discharge curve data at a gauge
bjoern@3936:  *
bjoern@3936:  * @author <a href="mailto:bjoern.ricks@intevation.de">Björn Ricks</a>
bjoern@3936:  */
bjoern@3936: public class GaugeDischargeCurveFacet
bjoern@3936: extends      DefaultFacet
bjoern@4032: implements FacetTypes
bjoern@3936: {
teichmann@3986:     private static final Logger log =
teichmann@3986:         Logger.getLogger(GaugeDischargeCurveFacet.class);
bjoern@3936: 
bjoern@4187:     public GaugeDischargeCurveFacet(String name, String description) {
bjoern@4187:         super(0, name, description);
bjoern@3936:     }
bjoern@3936: 
bjoern@3936:     @Override
bjoern@3936:     public Object getData(Artifact art, CallContext context) {
bjoern@4583:         return getWQKms(art, context);
bjoern@4583:     }
bjoern@3936: 
bjoern@4583:     protected WQKms getWQKms(Artifact art, CallContext context) {
teichmann@3986:         if (!(art instanceof FLYSArtifact)) {
teichmann@3986:             log.warn("Invalid artifact type");
teichmann@3986:             return null;
teichmann@3986:         }
teichmann@3986: 
teichmann@3986:         FLYSArtifact flys = (FLYSArtifact)art;
teichmann@3986: 
teichmann@3986:         String river = flys.getDataAsString("river");
teichmann@3986: 
teichmann@3986:         Gauge gauge = FLYSUtils.getReferenceGauge(flys);
teichmann@3986: 
teichmann@3986:         if (river == null || gauge == null) {
teichmann@3986:             log.warn("Unknown river or gauge");
teichmann@3986:             return null;
teichmann@3986:         }
teichmann@3986: 
teichmann@3986:         String name = gauge.getName();
teichmann@3986: 
teichmann@3986:         DischargeTables dt = new DischargeTables(river, name);
bjoern@3936: 
bjoern@4584:         Map<String, double [][]> map = dt.getValues(
bjoern@4584:                 DischargeTables.HISTORICAL_SCALE);
bjoern@3936: 
bjoern@3936:         double [][] values = map.get(name);
bjoern@3936:         if (values == null) {
bjoern@3936:             return null;
bjoern@3936:         }
bjoern@3936:         double [] kms = new double[values[0].length];
bjoern@3936:         Arrays.fill(kms, gauge.getStation().doubleValue());
teichmann@3986:         return new WQKms(kms, values[0], values[1], name);
bjoern@3936:     }
bjoern@3936: 
bjoern@3936:     @Override
bjoern@3936:     public Facet deepCopy() {
bjoern@4032:         GaugeDischargeCurveFacet copy = new GaugeDischargeCurveFacet(
bjoern@4187:                 this.name,
bjoern@4032:                 this.description);
bjoern@3936:         copy.set(this);
bjoern@3936:         return copy;
bjoern@3936:     }
bjoern@3936: }