Mercurial > dive4elements > river
view flys-artifacts/src/main/java/de/intevation/flys/artifacts/states/WaterlevelGroundDifferences.java @ 4902:e1566938d04c
Added new functions to datacage templating language.
* get minimum of location/distance:
dc:fromValue($ld_mode, $ld_locations, $ld_from)
- returns -Double.MAX_VALUE if no min exists.
* get maximum of location/distance:
dc:toValue($ld_mode, $ld_locations, $ld_to)
- returns Double.MAX_VALUE if no max exists.
author | Raimund Renkert <rrenkert@intevation.de> |
---|---|
date | Tue, 29 Jan 2013 17:11:26 +0100 |
parents | 1358d0c8481c |
children |
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package de.intevation.flys.artifacts.states; import org.w3c.dom.Element; import org.apache.log4j.Logger; import de.intevation.flys.artifacts.FLYSArtifact; import de.intevation.artifacts.Artifact; import de.intevation.artifacts.CallContext; import de.intevation.artifacts.common.utils.XMLUtils; import de.intevation.artifactdatabase.data.StateData; import de.intevation.artifactdatabase.ProtocolUtils; /** * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> */ public class WaterlevelGroundDifferences extends RangeState { public static final String LOWER_FIELD = "diff_from"; public static final String UPPER_FIELD = "diff_to"; public static final String DIFF_FIELD = "diff_diff"; public static final double DEFAULT_STEP = 0d; private static Logger logger = Logger.getLogger(WaterlevelGroundDifferences.class); protected String getLowerField() { return LOWER_FIELD; } protected String getUpperField() { return UPPER_FIELD; } protected String getStepField() { return DIFF_FIELD; } @Override protected double[] getMinMax(Artifact artifact) { return new double[] { -Double.MAX_VALUE, Double.MAX_VALUE }; } @Override protected String getUIProvider() { return "waterlevel_ground_panel"; } protected double getDefaultStep() { return DEFAULT_STEP; } @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(LOWER_FIELD)) { Element min = createItem( cr, new String[] {"min", new Double(minVal).toString()}); return new Element[] { min }; } else if (name.equals(UPPER_FIELD)) { Element max = createItem( cr, new String[] {"max", new Double(maxVal).toString()}); return new Element[] { max }; } else { Element step = createItem( cr, new String[] {"step", String.valueOf(getDefaultStep())}); return new Element[] { step }; } } protected Element createItem(XMLUtils.ElementCreator cr, Object obj) { Element item = ProtocolUtils.createArtNode(cr, "item", null, null); Element label = ProtocolUtils.createArtNode(cr, "label", null, null); Element value = ProtocolUtils.createArtNode(cr, "value", null, null); String[] arr = (String[]) obj; label.setTextContent(arr[0]); value.setTextContent(arr[1]); item.appendChild(label); item.appendChild(value); return item; } @Override public boolean validate(Artifact artifact) throws IllegalArgumentException { FLYSArtifact flys = (FLYSArtifact) artifact; StateData dFrom = getData(flys, getLowerField()); StateData dTo = getData(flys, getUpperField()); StateData dStep = getData(flys, getStepField()); String fromStr = dFrom != null ? (String) dFrom.getValue() : null; String toStr = dTo != null ? (String) dTo.getValue() : null; String stepStr = dStep != null ? (String) dStep.getValue() : null; if (fromStr == null || toStr == null || stepStr == null) { throw new IllegalArgumentException("error_empty_state"); } try { double from = Double.parseDouble(fromStr); double to = Double.parseDouble(toStr); double step = Double.parseDouble(stepStr); double[] minmax = getMinMax(flys); return validateBounds(minmax[0], minmax[1], from, to, step); } catch (NumberFormatException nfe) { throw new IllegalArgumentException("error_invalid_double_value"); } } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :