view flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/fixings/FixAvSectorFacet.java @ 4255:670e98f5a441

Fixed leak while merging facets. The ThemeList that is used by OutputHelper to sort the Facets for an Output now uses a list to store the ManagedFacets. The correct order is made up by sorting the List using Collections.sort() function of the Java JDK. Therfore, the ManagedFacet class implements the Comparable interface. The return value of its compareTo(other) method depends on the value of the 'position' field.
author Ingo Weinzierl <weinzierl.ingo@googlemail.com>
date Thu, 25 Oct 2012 14:01:46 +0200
parents b9c2becbcc9e
children 26774405c884
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package de.intevation.flys.artifacts.model.fixings;

import de.intevation.artifacts.Artifact;
import de.intevation.artifacts.CallContext;

import de.intevation.flys.artifacts.FLYSArtifact;

import de.intevation.flys.artifacts.access.FixAnalysisAccess;

import de.intevation.flys.artifacts.model.CalculationResult;
import de.intevation.flys.artifacts.model.DataFacet;
import de.intevation.flys.artifacts.model.FacetTypes;

import de.intevation.flys.artifacts.model.QWDDateRange;

import de.intevation.flys.artifacts.states.DefaultState.ComputeType;

import de.intevation.flys.utils.KMIndex;

import org.apache.log4j.Logger;


/**
 * Facet to show average W values for Q sectors.
 *
 * @author <a href="mailto:raimund.renkert@intevation.de">Raimund Renkert</a>
 */
public class FixAvSectorFacet
extends      DataFacet
implements   FacetTypes {

    /** House logger. */
    private static Logger logger = Logger.getLogger(FixAvSectorFacet.class);

    /** Trivial Constructor. */
    public FixAvSectorFacet() {
    }


    public FixAvSectorFacet(int ndx, String name, String description) {
        super(
            ndx,
            name,
            description,
            ComputeType.ADVANCE,
            null,
            null);
    }


    /**
     * Returns the data this facet requires.
     *
     * @param artifact the owner artifact.
     * @param context  the CallContext.
     *
     * @return the data as QWD array (QWD[]).
     */
    @Override
    public Object getData(Artifact artifact, CallContext context) {
        logger.debug("FixAvSectorFacet.getData");

        if (artifact instanceof FLYSArtifact) {
            FLYSArtifact flys = (FLYSArtifact)artifact;
            FixAnalysisAccess access = new FixAnalysisAccess(flys);

            CalculationResult res =
                (CalculationResult) flys.compute(context,
                                                 ComputeType.ADVANCE,
                                                 false);

            FixAnalysisResult result = (FixAnalysisResult) res.getData();

            double currentKm =
                ((Double)context.getContextValue("currentKm")).doubleValue();
            KMIndex<AnalysisPeriod []> kmPeriods = result.getAnalysisPeriods();
            KMIndex.Entry<AnalysisPeriod []> kmPeriodsEntry =
                kmPeriods.binarySearch(currentKm);

            if (kmPeriodsEntry == null) {
                logger.warn("No analysis periods found for km '" + currentKm + "'");
                return null;
            }

            AnalysisPeriod[] periods = kmPeriodsEntry.getValue();

            if (periods == null) {
                logger.warn("No analysis periods specified!");
                return null;
            }

            QWD[] qwdData = null;
            int sectorNdx = index & 3;
            int periodNdx = index >> 2;

            if (periodNdx < periods.length) {
                qwdData = periods[periodNdx].getQSectorAverages();
            }

            if (logger.isDebugEnabled()) {
                int resSize = qwdData != null ? qwdData.length : -1;
                logger.debug("Found " + resSize + " result elements.");
            }

            if (qwdData == null) {
                return null;
            }
            return new QWDDateRange(qwdData[sectorNdx], periods[periodNdx].getDateRange());
        }
        else {
            logger.warn("Artifact is no instance of FLYSArtifact.");
            return null;
        }
    }


    /**
     * Create a deep copy of this Facet.
     * @return a deep copy.
     */
    @Override
    public FixAvSectorFacet deepCopy() {
        FixAvSectorFacet copy = new FixAvSectorFacet();
        copy.set(this);
        return copy;
    }
}
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