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 gnu.trove.TDoubleArrayList;
ingo@383: 
ingo@383: import org.apache.log4j.Logger;
ingo@383: 
ingo@679: import org.w3c.dom.Element;
ingo@679: 
teichmann@5831: import org.dive4elements.artifacts.Artifact;
teichmann@5831: import org.dive4elements.artifacts.CallContext;
ingo@383: 
teichmann@5831: import org.dive4elements.artifacts.common.utils.XMLUtils;
ingo@679: 
teichmann@5831: import org.dive4elements.artifactdatabase.data.StateData;
ingo@383: 
teichmann@5867: import org.dive4elements.river.artifacts.D4EArtifact;
ingo@624: 
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: 
teichmann@8202:     /** The log used in this class.*/
teichmann@8202:     private static Logger log = Logger.getLogger(LocationSelect.class);
ingo@383: 
ingo@383: 
ingo@383:     public LocationSelect() {
ingo@383:     }
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: 
ingo@383:     @Override
ingo@679:     protected Element[] createItems(
ingo@679:         XMLUtils.ElementCreator cr,
ingo@679:         Artifact    artifact,
ingo@679:         String      name,
ingo@679:         CallContext context)
ingo@679:     {
ingo@921:         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];
ingo@679:         }
ingo@679:         else {
teichmann@8202:             log.warn("Could not read min/max distance values!");
ingo@679:         }
ingo@679: 
felix@2235:         if (name.equals(LOCATIONS)) {
ingo@679:             Element min = createItem(
ingo@679:                 cr,
ingo@679:                 new String[] {"min", new Double(minVal).toString()});
ingo@679: 
ingo@679:             Element max = createItem(
ingo@679:                 cr,
ingo@679:                 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: 
ingo@679: 
felix@3284:     /** Validates data from artifact. */
ingo@679:     @Override
sascha@1050:     public boolean validate(Artifact artifact)
ingo@383:     throws IllegalArgumentException
ingo@383:     {
teichmann@8202:         log.debug("LocationSelect.validate");
ingo@383: 
teichmann@5867:         D4EArtifact flys = (D4EArtifact) artifact;
felix@2235:         StateData    data = getData(flys, LOCATIONS);
ingo@383: 
felix@2223:         String locationStr = data != null
felix@2223:             ? (String) data.getValue()
felix@2223:             : 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: 
ingo@921:         double[] minmax = getMinMax(artifact);
ingo@383:         double[] mm     = extractLocations(locationStr);
ingo@383: 
teichmann@8202:         log.debug("Inserted min location: " + mm[0]);
teichmann@8202:         log.debug("Inserted max location: " + mm[mm.length-1]);
ingo@383: 
ingo@385:         return validateBounds(minmax[0], minmax[1], mm[0], mm[mm.length-1], 0d);
ingo@383:     }
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:      *
ingo@383:      * @param locationStr The locations inserted in this state.
ingo@383:      *
ingo@383:      * @return the locations as array.
ingo@383:      */
ingo@383:     protected double[] extractLocations(String locationStr) {
ingo@383:         String[] tmp               = locationStr.split(" ");
ingo@383:         TDoubleArrayList locations = new TDoubleArrayList();
ingo@383: 
ingo@383:         for (String l: tmp) {
ingo@383:             try {
ingo@383:                 locations.add(Double.parseDouble(l));
ingo@383:             }
ingo@383:             catch (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 :