Mercurial > dive4elements > river
view artifacts/src/main/java/org/dive4elements/river/artifacts/FixationArtifact.java @ 7471:fff862f4ef76
Experimental caching of datacage recommendations. The respective hook is called a lot and running the datacage over and over again when loading data can be expensive. So the generated recommendations are cached for some time.
Hopefully this improves the overall speed of loading data from the datacage.
author | Sascha L. Teichmann <teichmann@intevation.de> |
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date | Wed, 30 Oct 2013 15:26:21 +0100 |
parents | c18098d0151a |
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; import org.dive4elements.artifacts.CallContext; import org.dive4elements.river.artifacts.geom.Lines; import org.dive4elements.river.artifacts.model.CalculationResult; import org.dive4elements.river.artifacts.model.WKms; import org.dive4elements.river.artifacts.model.fixings.FixRealizingResult; import org.dive4elements.river.artifacts.states.DefaultState.ComputeType; import org.dive4elements.river.model.FastCrossSectionLine; import org.apache.log4j.Logger; /** * The default fixation analysis artifact. * * @author <a href="mailto:raimund.renkert@intevation.de">Raimund Renkert</a> */ public class FixationArtifact extends D4EArtifact implements WaterLineArtifact { /** The logger for this class. */ private static Logger logger = Logger.getLogger(FixationArtifact.class); /** The name of the artifact. */ public static final String ARTIFACT_NAME = "fixanalysis"; /* FacetActivity for this artifact is registered in FixAnalysisCompute . */ /** * The default constructor. */ public FixationArtifact() { logger.debug("ctor()"); } /** * Returns the name of the concrete artifact. * * @return the name of the concrete artifact. */ @Override public String getName() { return ARTIFACT_NAME; } /** Calculate waterlines against a cross section. */ @Override public Lines.LineData getWaterLines( int facetIdx, FastCrossSectionLine csl, double d, double w, CallContext context ) { FixRealizingResult result = (FixRealizingResult) ((CalculationResult)this.compute(context, ComputeType.ADVANCE, false)).getData(); WKms wkms = result.getWQKms()[facetIdx]; double km = csl.getKm(); // Find W at km. double wAtKm; wAtKm = StaticWKmsArtifact.getWAtKm(wkms, km); if (wAtKm == -1 || Double.isNaN(wAtKm)) { logger.warn("Waterlevel at km " + km + " unknown."); return new Lines.LineData(new double[][] {{}}, 0d, 0d); } // This should be FixRealizationResult, which can be getWQKms()ed return Lines.createWaterLines(csl.getPoints(), wAtKm); } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :