view artifacts/src/main/java/org/dive4elements/river/artifacts/states/DistanceOnlySelect.java @ 7471:fff862f4ef76

Experimental caching of datacage recommendations. The respective hook is called a lot and running the datacage over and over again when loading data can be expensive. So the generated recommendations are cached for some time. Hopefully this improves the overall speed of loading data from the datacage.
author Sascha L. Teichmann <teichmann@intevation.de>
date Wed, 30 Oct 2013 15:26:21 +0100
parents a0078e5e3b39
children e4606eae8ea5
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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.artifacts.states;

import org.apache.log4j.Logger;

import org.dive4elements.artifacts.Artifact;

import org.dive4elements.river.artifacts.access.RangeAccess;
import org.dive4elements.river.artifacts.D4EArtifact;


public class DistanceOnlySelect extends DistanceSelect {

    private static Logger logger = Logger.getLogger(DistanceOnlySelect.class);

    @Override
    protected String getUIProvider() {
        return "distance_only_panel";
    }


    @Override
    public boolean validate(Artifact artifact)
    throws IllegalArgumentException
    {
        // TODO think about better hierarchy wrt RangeState#validate.
        D4EArtifact flys = (D4EArtifact) artifact;

        try {
            RangeAccess rangeAccess = new RangeAccess(flys);
            double from = rangeAccess.getFrom();
            double to   = rangeAccess.getTo();

            double[] minmax = getMinMax(flys);

            return validateBounds(minmax[0], minmax[1], from, to);
        }
        catch (NumberFormatException nfe) {
            throw new IllegalArgumentException("error_invalid_double_value");
        }
        catch (NullPointerException npe) {
            throw new IllegalArgumentException("error_empty_state");
        }
    }
}
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