view flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/BlackboardDataFacet.java @ 2066:2b6a0de47379

Improved the WaterlevelExporter: added range check for W/Q at gauge. flys-artifacts/trunk@3561 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Mon, 02 Jan 2012 10:59:42 +0000
parents 2bb160b2768e
children bb0dede9294f
line wrap: on
line source
package de.intevation.flys.artifacts.model;

import java.util.ArrayList;
import java.util.List;

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

import de.intevation.artifactdatabase.state.DefaultFacet;


/**
 * Facet that writes artifact-uui and facet index on the blackboard,
 * delivers data if asked so.
 */
public class BlackboardDataFacet extends DefaultFacet {

    public BlackboardDataFacet() {}

    /** Do not instantiate a BlackboardDataFacet, subclass it instead. */
    public BlackboardDataFacet(int idx, String name, String description) {
        super(idx, name, description);
    }


    /** Hey, We can ArtifactUUID+FacetIndex (i.e. getData)! */
    public List getDataProviderKeys(Artifact art) {
        List list = new ArrayList();
        list.add(art.identifier() + getIndex());
        return list;
    }


    /**
     * Can provide whatever getData returns.
     * @param key      will respond on uuid+index
     * @param param    ignored
     * @param context  ignored
     * @return whatever getData delivers.
     */
    public Object provideBlackboardData(Artifact artifact,
        Object key,
        Object param,
        CallContext context
    ) {
        if (key.equals(artifact.identifier() + getIndex())) {
            return getData(artifact, context);
        }
        else {
            return null;
        }
    }

}
// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :

http://dive4elements.wald.intevation.org