teichmann@5863: /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
teichmann@5863:  * Software engineering by Intevation GmbH
teichmann@5863:  *
teichmann@5994:  * This file is Free Software under the GNU AGPL (>=v3)
teichmann@5863:  * and comes with ABSOLUTELY NO WARRANTY! Check out the
teichmann@5994:  * documentation coming with Dive4Elements River for details.
teichmann@5863:  */
teichmann@5863: 
teichmann@5831: package org.dive4elements.river.artifacts.model.fixings;
raimund@3035: 
ingo@3466: import org.apache.log4j.Logger;
ingo@3466: 
teichmann@5831: import org.dive4elements.artifacts.Artifact;
teichmann@5831: import org.dive4elements.artifacts.CallContext;
teichmann@5867: import org.dive4elements.river.artifacts.D4EArtifact;
teichmann@5831: import org.dive4elements.river.artifacts.model.CalculationResult;
teichmann@5831: import org.dive4elements.river.artifacts.model.FacetTypes;
teichmann@5831: import org.dive4elements.river.artifacts.states.DefaultState.ComputeType;
teichmann@5831: import org.dive4elements.river.utils.KMIndex;
raimund@3035: 
raimund@3035: 
raimund@3035: /**
raimund@3035:  * Facet to show W values for Q values at km for a date.
raimund@3035:  *
raimund@3035:  * @author <a href="mailto:raimund.renkert@intevation.de">Raimund Renkert</a>
raimund@3035:  */
raimund@3035: public class FixReferenceEventsFacet
bjoern@4442: extends      FixingsFacet
raimund@3035: implements   FacetTypes {
raimund@3035: 
raimund@3035:     /** House logger. */
raimund@3035:     private static Logger logger = Logger.getLogger(FixReferenceEventsFacet.class);
raimund@3035: 
raimund@3035:     /** Trivial Constructor. */
raimund@3035:     public FixReferenceEventsFacet() {
raimund@3035:     }
raimund@3035: 
raimund@3035: 
raimund@3035:     /**
raimund@3035:      * @param name
raimund@3035:      */
raimund@3043:     public FixReferenceEventsFacet(int index, String name, String description) {
raimund@3039:         super(index,
raimund@3043:              name,
raimund@3039:              description,
raimund@3039:              ComputeType.ADVANCE,
raimund@3039:              null,
raimund@3039:              null);
raimund@3035:     }
raimund@3035: 
raimund@3035: 
raimund@3035:     /**
raimund@3035:      * Returns the data this facet requires.
raimund@3035:      *
raimund@3035:      * @param artifact the owner artifact.
raimund@3035:      * @param context  the CallContext (ignored).
raimund@3035:      *
raimund@3035:      * @return the data.
raimund@3035:      */
raimund@3035:     @Override
raimund@3035:     public Object getData(Artifact artifact, CallContext context) {
raimund@3035:         logger.debug("FixReferenceEventsFacet.getData");
raimund@3035: 
teichmann@6868:         if (!(artifact instanceof D4EArtifact)) {
raimund@3035:             logger.debug("Not an instance of FixationArtifact.");
raimund@3035:             return null;
raimund@3035:         }
teichmann@6868: 
teichmann@6868:         D4EArtifact flys = (D4EArtifact)artifact;
teichmann@6868: 
teichmann@6868:         CalculationResult res =
teichmann@6868:             (CalculationResult) flys.compute(context,
teichmann@6868:                                              ComputeType.ADVANCE,
teichmann@6868:                                              false);
teichmann@6868: 
teichmann@6868:         FixResult result = (FixResult) res.getData();
teichmann@6868:         double currentKm = getCurrentKm(context);
teichmann@6868: 
teichmann@6873:         if (logger.isDebugEnabled()) {
teichmann@6873:             logger.debug("current km in FRE: " + currentKm);
teichmann@6873:         }
teichmann@6868: 
teichmann@6868:         KMIndex<QWD []> kmQWs = result.getReferenced();
teichmann@6868:         KMIndex.Entry<QWD []> kmQWsEntry = kmQWs.binarySearch(currentKm);
teichmann@6873: 
teichmann@6873:         if (kmQWsEntry == null) {
teichmann@6873:             return null;
teichmann@6868:         }
teichmann@6873: 
teichmann@6873:         // The lower eight bits contain the index of the point.
teichmann@6873:         int ndx = index & 255;
teichmann@6873:         QWD [] qwds = kmQWsEntry.getValue();
teichmann@6873:         if (ndx >= qwds.length) {
teichmann@6873:             logger.error("index too large: " + ndx + " " + qwds.length);
teichmann@6873:             return null;
teichmann@6873:         }
teichmann@6873:         return qwds[ndx];
raimund@3035:     }
raimund@3035: 
raimund@3035: 
raimund@3035:     /**
raimund@3035:      * Create a deep copy of this Facet.
raimund@3035:      * @return a deep copy.
raimund@3035:      */
raimund@3035:     @Override
raimund@3035:     public FixReferenceEventsFacet deepCopy() {
raimund@3035:         FixReferenceEventsFacet copy = new FixReferenceEventsFacet();
raimund@3035:         copy.set(this);
raimund@3035:         return copy;
raimund@3035:     }
raimund@3035: }
raimund@3035: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :