teichmann@5863: /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
teichmann@5863:  * Software engineering by Intevation GmbH
teichmann@5863:  *
teichmann@5994:  * This file is Free Software under the GNU AGPL (>=v3)
teichmann@5863:  * and comes with ABSOLUTELY NO WARRANTY! Check out the
teichmann@5994:  * documentation coming with Dive4Elements River for details.
teichmann@5863:  */
teichmann@5863: 
teichmann@5831: package org.dive4elements.river.artifacts.states;
ingo@383: 
ingo@383: import org.apache.log4j.Logger;
gernotbelger@9584: import org.dive4elements.artifactdatabase.data.StateData;
gernotbelger@9584: import org.dive4elements.artifacts.Artifact;
gernotbelger@9584: import org.dive4elements.artifacts.CallContext;
gernotbelger@9584: import org.dive4elements.artifacts.common.utils.XMLUtils;
gernotbelger@9584: import org.dive4elements.river.artifacts.D4EArtifact;
ingo@679: import org.w3c.dom.Element;
ingo@679: 
gernotbelger@9584: import gnu.trove.TDoubleArrayList;
ingo@383: 
ingo@383: /**
felix@3284:  * This state is used to realize the input of multiple locations as string.
felix@3284:  *
felix@3284:  * The string should be a whitespace separated list of double values where each
ingo@383:  * double value represents a location.
ingo@383:  *
ingo@383:  * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
ingo@383:  */
ingo@383: public class LocationSelect extends LocationDistanceSelect {
ingo@383: 
gernotbelger@9584:     private static final long serialVersionUID = 1L;
gernotbelger@9584:     /** The log used in this class. */
teichmann@8202:     private static Logger log = Logger.getLogger(LocationSelect.class);
ingo@383: 
ingo@383:     public LocationSelect() {
ingo@383:     }
ingo@383: 
felix@3284:     /** UI Provider (which input method should the client provide to user. */
ingo@383:     @Override
ingo@383:     protected String getUIProvider() {
ingo@383:         return "location_panel";
ingo@383:     }
ingo@383: 
ingo@383:     @Override
gernotbelger@9584:     protected Element[] createItems(final XMLUtils.ElementCreator cr, final Artifact artifact, final String name, final CallContext context) {
gernotbelger@9584:         final double[] minmax = getMinMax(artifact);
ingo@679: 
ingo@679:         double minVal = Double.MIN_VALUE;
ingo@679:         double maxVal = Double.MAX_VALUE;
ingo@679: 
ingo@679:         if (minmax != null) {
ingo@679:             minVal = minmax[0];
ingo@679:             maxVal = minmax[1];
gernotbelger@9584:         } else {
teichmann@8202:             log.warn("Could not read min/max distance values!");
ingo@679:         }
ingo@679: 
felix@2235:         if (name.equals(LOCATIONS)) {
gernotbelger@9584:             final Element min = createItem(cr, new String[] { "min", new Double(minVal).toString() });
ingo@679: 
gernotbelger@9584:             final Element max = createItem(cr, new String[] { "max", new Double(maxVal).toString() });
ingo@679: 
ingo@679:             return new Element[] { min, max };
ingo@679:         }
ingo@679: 
ingo@679:         return null;
ingo@679:     }
ingo@679: 
felix@3284:     /** Validates data from artifact. */
ingo@679:     @Override
gernotbelger@9584:     public boolean validate(final Artifact artifact) throws IllegalArgumentException {
teichmann@8202:         log.debug("LocationSelect.validate");
ingo@383: 
gernotbelger@9584:         final D4EArtifact flys = (D4EArtifact) artifact;
gernotbelger@9584:         final StateData data = getData(flys, LOCATIONS);
ingo@383: 
gernotbelger@9584:         final String locationStr = data != null ? (String) data.getValue() : null;
ingo@383: 
ingo@383:         if (locationStr == null || locationStr.length() == 0) {
teichmann@8202:             log.error("No locations given.");
ingo@383:             throw new IllegalArgumentException("error_empty_state");
ingo@383:         }
ingo@383: 
gernotbelger@9584:         final double[] minmax = getMinMax(artifact);
gernotbelger@9584:         final double[] mm = extractLocations(locationStr);
ingo@383: 
teichmann@8202:         log.debug("Inserted min location: " + mm[0]);
gernotbelger@9584:         log.debug("Inserted max location: " + mm[mm.length - 1]);
ingo@383: 
gernotbelger@9584:         return validateBounds(minmax[0], minmax[1], mm[0], mm[mm.length - 1], 0d);
ingo@383:     }
ingo@383: 
ingo@383:     /**
ingo@383:      * This method takes a string that consist of whitespace separated double
ingo@383:      * values and returns the double values as array.
ingo@383:      *
gernotbelger@9584:      * @param locationStr
gernotbelger@9584:      *            The locations inserted in this state.
ingo@383:      *
ingo@383:      * @return the locations as array.
ingo@383:      */
gernotbelger@9584:     protected double[] extractLocations(final String locationStr) {
gernotbelger@9584:         final String[] tmp = locationStr.split(" ");
gernotbelger@9584:         final TDoubleArrayList locations = new TDoubleArrayList();
ingo@383: 
gernotbelger@9584:         for (final String l : tmp) {
ingo@383:             try {
ingo@383:                 locations.add(Double.parseDouble(l));
ingo@383:             }
gernotbelger@9584:             catch (final NumberFormatException nfe) {
teichmann@8202:                 log.warn(nfe, nfe);
ingo@383:             }
ingo@383:         }
ingo@383: 
ingo@383:         locations.sort();
ingo@383: 
ingo@383:         return locations.toNativeArray();
ingo@383:     }
ingo@383: }
ingo@383: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :