view backend/src/main/java/org/dive4elements/river/importer/ImportFlowVelocityModelValue.java @ 6328:53d08f33d094

Backend: Moved guessing of main values and there time intervals out of the STA parser. Same come will be useful to extend the WST parser to better handle official lines.
author Sascha L. Teichmann <teichmann@intevation.de>
date Thu, 13 Jun 2013 17:15:34 +0200
parents 4c3ccf2b0304
children 5e38e2924c07
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/* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
 * Software engineering by Intevation GmbH
 *
 * This file is Free Software under the GNU AGPL (>=v3)
 * and comes with ABSOLUTELY NO WARRANTY! Check out the
 * documentation coming with Dive4Elements River for details.
 */

package org.dive4elements.river.importer;

import java.math.BigDecimal;

import java.util.List;

import org.hibernate.Session;
import org.hibernate.Query;

import org.dive4elements.river.model.FlowVelocityModel;
import org.dive4elements.river.model.FlowVelocityModelValue;


public class ImportFlowVelocityModelValue {

    private BigDecimal station;
    private BigDecimal q;
    private BigDecimal totalChannel;
    private BigDecimal mainChannel;
    private BigDecimal shearStress;

    private FlowVelocityModelValue peer;


    public ImportFlowVelocityModelValue(
        BigDecimal station,
        BigDecimal q,
        BigDecimal totalChannel,
        BigDecimal mainChannel,
        BigDecimal shearStress
    ) {
        this.station      = station;
        this.q            = q;
        this.totalChannel = totalChannel;
        this.mainChannel  = mainChannel;
        this.shearStress  = shearStress;
    }


    public void storeDependencies(FlowVelocityModel model) {
        getPeer(model);
    }


    public FlowVelocityModelValue getPeer(FlowVelocityModel model) {
        if (peer == null) {
            Session session = ImporterSession.getInstance().getDatabaseSession();

            Query query = session.createQuery(
                "from FlowVelocityModelValue where " +
                "   flowVelocity=:model and " +
                "   station between :station - 0.00001 and :station + 0.00001"
            );

            query.setParameter("model", model);
            query.setParameter("station", station.doubleValue());

            List<FlowVelocityModelValue> values = query.list();

            if (values.isEmpty()) {
                peer = new FlowVelocityModelValue(
                    model, station, q, totalChannel, mainChannel, shearStress);

                session.save(peer);
            }
            else {
                peer = values.get(0);
            }
        }

        return peer;
    }
}
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