package de.intevation.flys.artifacts.states;

import java.util.List;

import org.apache.log4j.Logger;

import org.w3c.dom.Element;

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

import de.intevation.artifacts.common.utils.XMLUtils;

import de.intevation.artifactdatabase.state.Facet;

import de.intevation.flys.artifacts.FLYSArtifact;
import de.intevation.flys.artifacts.WINFOArtifact;
import de.intevation.flys.artifacts.model.ComputeCallback;
import de.intevation.flys.artifacts.model.ComputeCallbackAdapter;


public class WaterlevelState extends DefaultState {

    /** The logger that is used in this state.*/
    private static Logger logger = Logger.getLogger(WaterlevelState.class);


    protected Element[] createItems(
        XMLUtils.ElementCreator cr,
        Artifact    artifact,
        String      name,
        CallContext context)
    {
        logger.debug("WaterlevelState.createItems");
        return null;
    }


    @Override
    public ComputeCallback createComputeCallback(
        String hash, FLYSArtifact flys)
    {
        final WINFOArtifact winfo = (WINFOArtifact) flys;

        return new ComputeCallbackAdapter() {

            @Override
            public Object computeAdvance(List<Facet> facets) {
                return winfo.getWaterlevelData();
            }
        };
    }
}
// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :