Mercurial > dive4elements > river
view artifacts/src/main/java/org/dive4elements/river/artifacts/datacage/templating/FixAnalysisYearXPathFunction.java @ 9232:5030c46d8cb4
Implemented xpath function that selectes the 'mean year' of a fixation-artifact.
Needs to provide the ArtifactDatabase to the builder implementation.
author | gernotbelger |
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date | Fri, 06 Jul 2018 13:09:54 +0200 |
parents | |
children | 2d4750874c57 |
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/** Copyright (C) 2017 by Bundesanstalt für Gewässerkunde * Software engineering by * Björnsen Beratende Ingenieure GmbH * Dr. Schumacher Ingenieurbüro für Wasser und Umwelt * * 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.datacage.templating; import java.util.List; import java.util.UUID; import javax.xml.xpath.XPathFunction; import javax.xml.xpath.XPathFunctionException; import org.apache.log4j.Logger; import org.dive4elements.artifacts.CallContext; import org.dive4elements.river.artifacts.FixationArtifact; import org.dive4elements.river.artifacts.access.FixRealizingAccess; import org.dive4elements.river.artifacts.model.fixings.FixRealizingCalculationExtended; import org.dive4elements.river.utils.RiverUtils; /** * Very specialized function the resolves the 'year' (als middle of all used events) from a fix-analysis-vollmer * artifact). * * @author Gernot Belger */ public class FixAnalysisYearXPathFunction implements XPathFunction { public static final String ID = "fix_analysis_year"; public static final int ARITY = 1; private static Logger log = Logger.getLogger(FixAnalysisYearXPathFunction.class); private final CallContext context; public FixAnalysisYearXPathFunction(final CallContext context) { this.context = context; } @Override public Object evaluate(final List args) throws XPathFunctionException { // FIXME: get artifact id final UUID uuid = (UUID) args.get(0); final FixationArtifact fixation = (FixationArtifact) RiverUtils.getArtifact(uuid.toString(), this.context); // FIXME: fetch year // final CalculationResult r = (CalculationResult) fixation.compute(this.context, ComputeType.ADVANCE, false); // final FixRealizingResult frR = (FixRealizingResult) r.getData(); // Get W/Q input per gauge for this case. final FixRealizingAccess fixAccess = new FixRealizingAccess(fixation); // final List<Segment> segments = fixAccess.getSegments(); // final boolean isFixRealize = (segments != null && !segments.isEmpty()); /* ugly but necessary to keep this logic at least a bit inside the FixRealizing stuff */ final FixRealizingCalculationExtended calculation = new FixRealizingCalculationExtended(fixAccess); return calculation.determineMeanYear(); } }