view flys-artifacts/src/main/java/de/intevation/flys/artifacts/GaugeDischargeCurveArtifact.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 b87d76a6da70
children 8c51c43e59ca
line wrap: on
line source
package de.intevation.flys.artifacts;

import java.math.BigDecimal;
import java.util.ArrayList;
import java.util.List;

import org.apache.log4j.Logger;

import org.w3c.dom.Document;

import de.intevation.artifactdatabase.state.DefaultOutput;
import de.intevation.artifactdatabase.state.Facet;
import de.intevation.artifactdatabase.data.DefaultStateData;

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

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

import de.intevation.flys.artifacts.model.GaugeDischargeCurveFacet;
import de.intevation.flys.artifacts.resources.Resources;
import de.intevation.flys.artifacts.states.StaticState;

import de.intevation.flys.model.Gauge;
import de.intevation.flys.utils.FLYSUtils;


/**
 * Artifact to calculate a discharge curve from a gauge overview info
 *
 * @author <a href="mailto:bjoern.ricks@intevation.de">Björn Ricks</a>
 */
public class GaugeDischargeCurveArtifact
extends      AbstractStaticStateArtifact
{

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

    public static final String XPATH_RIVER = "/art:action/art:river/@art:name";
    public static final String XPATH_GAUGE = "/art:action/art:gauge/@art:reference";
    public static final String NAME = "gaugedischargecurve";
    public static final String STATIC_STATE_NAME = "state.gaugedischargecurve.static";
    public static final String UIPROVIDER = "gauge_discharge_curve";
    public static final String GAUGE_DISCHARGE_CURVE_FACET =
        "gauge_discharge_curve";
    public static final String GAUGE_DISCHARGE_CURVE_AT_EXPORT_FACET =
        "gauge_discharge_curve_at_export";
    public static final String GAUGE_DISCHARGE_CURVE_OUT =
        "discharge_curve";
    public static final String GAUGE_DISCHARGE_CURVE_AT_EXPORT_OUT =
        "computed_dischargecurve_at_export";

    private Facet atexportfacet;
    private Facet curvefacet;

    /**
     * Setup initializes the data by extracting the river and gauge from
     * the XML Document.
     */
    @Override
    public void setup(
        String          identifier,
        ArtifactFactory factory,
        Object          context,
        CallMeta        callmeta,
        Document        data)
    {
        logger.debug("GaugeDischargeCurveArtifact.setup");

        if (logger.isDebugEnabled()) {
            logger.debug("GaugeDischargeCurveArtifact.setup" + XMLUtils.toString(data));
        }
        String gaugeref = XMLUtils.xpathString(data, XPATH_GAUGE,
                ArtifactNamespaceContext.INSTANCE);
        String rivername = XMLUtils.xpathString(data, XPATH_RIVER,
                ArtifactNamespaceContext.INSTANCE);

        addData("river", new DefaultStateData("river",
                    Resources.getMsg(callmeta,
                        "facet.gauge_discharge_curve.river",
                        "Name of the river"),
                    "String", rivername));
        addData("reference_gauge", new DefaultStateData("reference_gauge",
                    Resources.getMsg(callmeta,
                        "facet.gauge_discharge_curve.reference_gauge",
                        "Gauge official number"),
                    "Long", gaugeref));

        Gauge gauge = FLYSUtils.getReferenceGauge(this);
        String gaugename = "";
        Double gaugelocation = null;
        if (gauge != null) {
            gaugename = gauge.getName();
            BigDecimal station = gauge.getStation();
            if (station != null) {
                gaugelocation = station.doubleValue();
            }
        }

        addData("gauge_name", new DefaultStateData("gauge_name",
                    Resources.getMsg(callmeta,
                        "facet.gauge_discharge_curve.gauge_name",
                        "Name of the gauge"),
                    "String", gaugename));

        if (gaugelocation != null) {
            addData("ld_locations", new DefaultStateData("ld_locations",
                        Resources.getMsg(callmeta,
                            "facet.gauge_discharge_curve.gauge_location",
                            "Location of the gauge"),
                        "Double", gaugelocation.toString()));
        }

        String description = Resources.format(callmeta,
                "facet.gauge_discharge_curve.description",
                "Discharge curve on gauge",
                rivername,
                gaugename);

        List<Facet> fs = new ArrayList<Facet>(2);
        curvefacet = new GaugeDischargeCurveFacet(
                GAUGE_DISCHARGE_CURVE_FACET, description);
        fs.add(curvefacet);

        description = Resources.format(callmeta,
                "facet.gauge_discharge_curve_at_export.description",
                "Discharge curve AT export on gauge",
                rivername,
                gaugename);
        atexportfacet = new GaugeDischargeCurveFacet(
                GAUGE_DISCHARGE_CURVE_AT_EXPORT_FACET, description);
        fs.add(atexportfacet);

        addFacets(STATIC_STATE_NAME, fs);

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

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

    @Override
    protected void initStaticState() {
        StaticState state = new StaticState(STATIC_STATE_NAME);

        List<Facet> fs = new ArrayList<Facet>(1);
        fs.add(curvefacet);

        DefaultOutput output = new DefaultOutput(
            GAUGE_DISCHARGE_CURVE_OUT,
            "output.discharge_curve",
            "image/png",
            fs,
            "chart");
        state.addOutput(output);

        fs = new ArrayList<Facet>(1);
        fs.add(atexportfacet);
        output = new DefaultOutput(
            GAUGE_DISCHARGE_CURVE_AT_EXPORT_OUT,
            "output.computed_dischargecurve_at_export",
            "text/plain",
            fs,
            "export");
        state.addOutput(output);

        state.setUIProvider(UIPROVIDER);
        setStaticState(state);
    }
}

http://dive4elements.wald.intevation.org