Mercurial > dive4elements > river
view artifacts/src/main/java/org/dive4elements/river/artifacts/states/ReferenceCurveState.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 | 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 org.dive4elements.artifactdatabase.state.Facet; import org.dive4elements.artifacts.CallContext; import org.dive4elements.river.artifacts.D4EArtifact; import org.dive4elements.river.artifacts.WINFOArtifact; import org.dive4elements.river.artifacts.model.CalculationResult; import org.dive4elements.river.artifacts.model.DataFacet; import org.dive4elements.river.artifacts.model.FacetTypes; import org.dive4elements.river.artifacts.model.ReferenceCurveFacet; import org.dive4elements.river.artifacts.model.ReportFacet; import org.dive4elements.river.artifacts.model.WWQQ; import java.util.List; import org.apache.log4j.Logger; /** State of WINFO in which reference curves can be produced. */ public class ReferenceCurveState extends DefaultState implements FacetTypes { private static Logger logger = Logger.getLogger(ReferenceCurveState.class); public ReferenceCurveState() { } @Override public Object computeAdvance( D4EArtifact artifact, String hash, CallContext context, List<Facet> facets, Object old ) { if (!(artifact instanceof WINFOArtifact)) { return null; } String id = getID(); WINFOArtifact winfo = (WINFOArtifact)artifact; CalculationResult res = old instanceof CalculationResult ? (CalculationResult)old : winfo.getReferenceCurveData(context); if (facets == null) { return res; } WWQQ [] wws = (WWQQ [])res.getData(); for (int i = 0; i < wws.length; ++i) { String wwsName = wws[i].getName(); facets.add(new ReferenceCurveFacet(i, REFERENCE_CURVE, wwsName )); facets.add(new ReferenceCurveFacet(i, REFERENCE_CURVE_NORMALIZED, wwsName )); } if (wws.length > 0) { logger.debug("Adding CSV and PDF data facet."); Facet csv = new DataFacet (CSV, "CSV data", ComputeType.ADVANCE, hash, id); Facet pdf = new DataFacet (PDF, "PDF data", ComputeType.ADVANCE, hash, id); facets.add(csv); facets.add(pdf); } if (res.getReport().hasProblems()) { facets.add(new ReportFacet(ComputeType.ADVANCE, hash, id)); } return res; } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :