Mercurial > dive4elements > river
view artifacts/src/main/java/org/dive4elements/river/artifacts/states/LocationSelect.java @ 6693:88bb0c794833
issue1391: Enable GaugeDischarge artifact to directly load a table by its ID
This allows us to use the GaugeDischargeArtifact for any discharge
tables that we have in our database. The name of the created facet
is taken from the ids string as is also usual in the WMS artifacts.
author | Andre Heinecke <aheinecke@intevation.de> |
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date | Mon, 29 Jul 2013 12:19:57 +0200 |
parents | af13ceeba52a |
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 gnu.trove.TDoubleArrayList; import org.apache.log4j.Logger; import org.w3c.dom.Element; import org.dive4elements.artifacts.Artifact; import org.dive4elements.artifacts.CallContext; import org.dive4elements.artifacts.common.utils.XMLUtils; import org.dive4elements.artifactdatabase.data.StateData; import org.dive4elements.river.artifacts.D4EArtifact; /** * This state is used to realize the input of multiple locations as string. * * The string should be a whitespace separated list of double values where each * double value represents a location. * * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> */ public class LocationSelect extends LocationDistanceSelect { /** The logger used in this class.*/ private static Logger logger = Logger.getLogger(LocationSelect.class); public LocationSelect() { } /** UI Provider (which input method should the client provide to user. */ @Override protected String getUIProvider() { return "location_panel"; } @Override protected Element[] createItems( XMLUtils.ElementCreator cr, Artifact artifact, String name, CallContext context) { double[] minmax = getMinMax(artifact); double minVal = Double.MIN_VALUE; double maxVal = Double.MAX_VALUE; if (minmax != null) { minVal = minmax[0]; maxVal = minmax[1]; } else { logger.warn("Could not read min/max distance values!"); } if (name.equals(LOCATIONS)) { Element min = createItem( cr, new String[] {"min", new Double(minVal).toString()}); Element max = createItem( cr, new String[] {"max", new Double(maxVal).toString()}); return new Element[] { min, max }; } return null; } /** Validates data from artifact. */ @Override public boolean validate(Artifact artifact) throws IllegalArgumentException { logger.debug("LocationSelect.validate"); D4EArtifact flys = (D4EArtifact) artifact; StateData data = getData(flys, LOCATIONS); String locationStr = data != null ? (String) data.getValue() : null; if (locationStr == null || locationStr.length() == 0) { logger.error("No locations given."); throw new IllegalArgumentException("error_empty_state"); } double[] minmax = getMinMax(artifact); double[] mm = extractLocations(locationStr); logger.debug("Inserted min location: " + mm[0]); logger.debug("Inserted max location: " + mm[mm.length-1]); return validateBounds(minmax[0], minmax[1], mm[0], mm[mm.length-1], 0d); } /** * This method takes a string that consist of whitespace separated double * values and returns the double values as array. * * @param locationStr The locations inserted in this state. * * @return the locations as array. */ protected double[] extractLocations(String locationStr) { String[] tmp = locationStr.split(" "); TDoubleArrayList locations = new TDoubleArrayList(); for (String l: tmp) { try { locations.add(Double.parseDouble(l)); } catch (NumberFormatException nfe) { logger.warn(nfe, nfe); } } locations.sort(); return locations.toNativeArray(); } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :