Mercurial > dive4elements > river
comparison artifacts/src/main/java/org/dive4elements/river/artifacts/datacage/templating/DataFromArtifactXPathFunction.java @ 9299:4a6cc7c6716a
uinfo.inundation_duration veg'zone select
| author | gernotbelger |
|---|---|
| date | Wed, 25 Jul 2018 14:42:44 +0200 |
| parents | |
| children | e511eb935ccd |
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| 9298:0b1a51b0c42e | 9299:4a6cc7c6716a |
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| 1 /** Copyright (C) 2017 by Bundesanstalt für Gewässerkunde | |
| 2 * Software engineering by | |
| 3 * Björnsen Beratende Ingenieure GmbH | |
| 4 * Dr. Schumacher Ingenieurbüro für Wasser und Umwelt | |
| 5 * | |
| 6 * This file is Free Software under the GNU AGPL (>=v3) | |
| 7 * and comes with ABSOLUTELY NO WARRANTY! Check out the | |
| 8 * documentation coming with Dive4Elements River for details. | |
| 9 */ | |
| 10 package org.dive4elements.river.artifacts.datacage.templating; | |
| 11 | |
| 12 import java.util.List; | |
| 13 import java.util.UUID; | |
| 14 | |
| 15 import javax.xml.xpath.XPathFunction; | |
| 16 import javax.xml.xpath.XPathFunctionException; | |
| 17 | |
| 18 import org.dive4elements.artifactdatabase.data.StateData; | |
| 19 import org.dive4elements.artifacts.CallContext; | |
| 20 import org.dive4elements.river.artifacts.D4EArtifact; | |
| 21 import org.dive4elements.river.utils.RiverUtils; | |
| 22 | |
| 23 /** | |
| 24 * Very specialized function the resolves the 'year' (als middle of all used events) from a fix-analysis-vollmer | |
| 25 * artifact). | |
| 26 * | |
| 27 * @author Gernot Belger | |
| 28 */ | |
| 29 public class DataFromArtifactXPathFunction implements XPathFunction { | |
| 30 | |
| 31 public static final String ID = "data_from_artifact"; | |
| 32 | |
| 33 public static final int ARITY = 2; | |
| 34 | |
| 35 private final CallContext context; | |
| 36 | |
| 37 public DataFromArtifactXPathFunction(final CallContext context) { | |
| 38 this.context = context; | |
| 39 } | |
| 40 | |
| 41 @Override | |
| 42 public Object evaluate(final List args) throws XPathFunctionException { | |
| 43 | |
| 44 final UUID uuid = (UUID) args.get(0); | |
| 45 if (uuid == null) | |
| 46 return null; | |
| 47 | |
| 48 final D4EArtifact artifact = RiverUtils.getArtifact(uuid.toString(), this.context); | |
| 49 if (!(args.get(1) instanceof String)) | |
| 50 return null; | |
| 51 | |
| 52 final StateData data = artifact.getData(args.get(1).toString()); | |
| 53 return data.getValue(); | |
| 54 | |
| 55 } | |
| 56 } |