view backend/src/main/java/org/dive4elements/river/importer/ImportSedimentDensity.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 0a5239a1e46e
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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.util.ArrayList;
import java.util.List;

import org.apache.log4j.Logger;
import org.hibernate.Query;
import org.hibernate.Session;

import org.dive4elements.river.model.River;
import org.dive4elements.river.model.SedimentDensity;


public class ImportSedimentDensity {

    private static Logger log = Logger.getLogger(ImportSedimentDensity.class);

    protected SedimentDensity peer;

    protected ImportDepth depth;

    protected String description;

    protected List<ImportSedimentDensityValue> values;

    public ImportSedimentDensity(String description) {
        this.description = description;
        this.values = new ArrayList<ImportSedimentDensityValue>();
    }

    public String getDescription() {
        return description;
    }

    public void setDepth(ImportDepth depth) {
        this.depth = depth;
    }

    public void addValue(ImportSedimentDensityValue value) {
        values.add(value);
    }

    public void storeDependencies(River river) {
        log.info("store dependencies");

        if (depth != null) {
            depth.storeDependencies();
        }

        SedimentDensity peer = getPeer(river);

        if (peer != null) {
            log.info("store sediment density values.");
            for (ImportSedimentDensityValue value : values) {
                value.storeDependencies(peer);
            }
        }
    }

    public SedimentDensity getPeer(River river) {
        log.info("get peer");

        if (depth == null) {
            log.warn("cannot store sediment density '" + description
                + "': no depth");
            return null;
        }

        if (peer == null) {
            Session session = ImporterSession.getInstance()
                .getDatabaseSession();

            Query query = session.createQuery("from SedimentDensity where "
                + "   river=:river and " + "   depth=:depth");

            query.setParameter("river", river);
            query.setParameter("depth", depth.getPeer());

            List<SedimentDensity> density = query.list();

            if (density.isEmpty()) {
                log.debug("Create new SedimentDensity DB instance.");

                peer = new SedimentDensity(river, depth.getPeer(),
                    description);

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

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

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