view flys-artifacts/src/main/java/de/intevation/flys/artifacts/WMSFixpointsArtifact.java @ 4241:49cb65d5932d

Improved the historical discharge calculation. The calculation now creates new HistoricalWQKms (new subclass of WQKms). Those WQKms are used to create new facets from (new) type 'HistoricalDischargeCurveFacet'. The chart generator is improved to support those facets.
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Wed, 24 Oct 2012 14:34:35 +0200
parents 2fdbe78a8fc2
children a2735a4bf75e
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package de.intevation.flys.artifacts;

import java.util.List;

import org.w3c.dom.Document;

import org.apache.log4j.Logger;

import com.vividsolutions.jts.geom.Envelope;

import de.intevation.artifacts.ArtifactFactory;
import de.intevation.artifacts.CallMeta;

import de.intevation.artifactdatabase.state.DefaultOutput;
import de.intevation.artifactdatabase.state.Facet;
import de.intevation.artifactdatabase.state.State;

import de.intevation.flys.model.River;
import de.intevation.flys.model.Fixpoint;

import de.intevation.flys.artifacts.model.FacetTypes;
import de.intevation.flys.artifacts.model.RiverFactory;
import de.intevation.flys.utils.FLYSUtils;
import de.intevation.flys.utils.GeometryUtils;


public class WMSFixpointsArtifact extends WMSDBArtifact {

    public static final String NAME = "fixpoints";


    private static final Logger logger =
        Logger.getLogger(WMSFixpointsArtifact.class);


    @Override
    public void setup(
        String          identifier,
        ArtifactFactory factory,
        Object          context,
        CallMeta        callMeta,
        Document        data)
    {
        logger.debug("WMSFixpointsArtifact.setup");

        super.setup(identifier, factory, context, callMeta, data);
    }


    @Override
    public String getName() {
        return NAME;
    }


    @Override
    public State getCurrentState(Object cc) {
        State s = new FixpointsState(this);

        List<Facet> fs = facets.get(getCurrentStateId());

        DefaultOutput o = new DefaultOutput(
            "floodmap",
            "floodmap",
            "image/png",
            fs,
            "map");

        s.getOutputs().add(o);

        return s;
    }


    public static class FixpointsState extends WMSDBState implements FacetTypes
    {
        private static final Logger logger =
            Logger.getLogger(FixpointsState.class);

        protected int riverId;

        public FixpointsState(WMSDBArtifact artifact) {
            super(artifact);
            riverId = 0;
        }

        @Override
        protected String getFacetType() {
            return FLOODMAP_FIXPOINTS;
        }

        @Override
        protected String getUrl() {
            return FLYSUtils.getUserWMSUrl(artifact.identifier());
        }

        @Override
        protected String getSrid() {
            River river = RiverFactory.getRiver(getRiverId());
            return FLYSUtils.getRiverSrid(river.getName());
        }

        @Override
        protected Envelope getExtent(boolean reproject) {
            List<Fixpoint> fixpoints = Fixpoint.getFixpoints(getRiverId());

            Envelope max = null;

            for (Fixpoint f: fixpoints) {
                Envelope env = f.getGeom().getEnvelopeInternal();

                if (max == null) {
                    max = env;
                    continue;
                }

                max.expandToInclude(env);
            }

            return max != null && reproject
                ? GeometryUtils.transform(max, getSrid())
                : max;
        }

        @Override
        protected String getFilter() {
            return "river_id=" + String.valueOf(getRiverId());
        }

        @Override
        protected String getDataString() {
            String srid = getSrid();

            if (FLYSUtils.isUsingOracle()) {
                return "geom FROM fixpoints USING SRID " + srid;
            }
            else {
                return "geom FROM fixpoints USING UNIQUE id USING SRID " + srid;
            }
        }

        @Override
        protected String getGeometryType() {
            return "POINT";
        }
    } // end of WMSKmState
}
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