Mercurial > dive4elements > river
view artifacts/src/main/java/org/dive4elements/river/artifacts/states/DurationCurveState.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 | a0078e5e3b39 |
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 java.util.List; import org.apache.log4j.Logger; import org.dive4elements.artifacts.CallContext; import org.dive4elements.artifactdatabase.state.Facet; import org.dive4elements.river.artifacts.access.RangeAccess; import org.dive4elements.river.artifacts.D4EArtifact; import org.dive4elements.river.artifacts.WINFOArtifact; import org.dive4elements.river.artifacts.ChartArtifact; import org.dive4elements.river.artifacts.model.DurationCurveFacet; import org.dive4elements.river.artifacts.model.FacetTypes; import org.dive4elements.river.artifacts.model.WQDay; import org.dive4elements.river.artifacts.model.DataFacet; import org.dive4elements.river.artifacts.model.ReportFacet; import org.dive4elements.river.artifacts.model.EmptyFacet; import org.dive4elements.river.artifacts.model.CalculationResult; import org.dive4elements.river.artifacts.resources.Resources; import org.dive4elements.river.utils.RiverUtils; /** * The final state that will be reached after the duration curve calculation * mode has been chosen. * * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> */ public class DurationCurveState extends DefaultState implements FacetTypes { /** The logger that is used in this state. */ private static Logger logger = Logger.getLogger(DurationCurveState.class); public DurationCurveState() { } @Override public Object computeAdvance( D4EArtifact artifact, String hash, CallContext context, List<Facet> facets, Object old ) { if (artifact instanceof WINFOArtifact) { WINFOArtifact winfo = (WINFOArtifact)artifact; CalculationResult res; if (old instanceof CalculationResult) { res = (CalculationResult)old; } else { res = winfo.getDurationCurveData(); } WQDay wqday = (WQDay)res.getData(); if (wqday != null && facets != null) { RangeAccess rangeAccess = new RangeAccess(winfo); // Create an i18ed name for a (w or q) duration curve facet. Object[] args = new Object[] { RiverUtils.getRiver(winfo).getName(), rangeAccess.getLocations()[0] }; String nameW = Resources.getMsg( context.getMeta(), "chart.duration.curve.curve.w", "", args); String nameQ = Resources.getMsg( context.getMeta(), "chart.duration.curve.curve.q", "", args); Facet w = new DurationCurveFacet(DURATION_W, nameW); Facet q = new DurationCurveFacet(DURATION_Q, nameQ); facets.add(w); facets.add(q); facets.add(new DataFacet(CSV, "CSV data")); facets.add(new DataFacet(PDF, "PDF data")); if (res.getReport().hasProblems()) { facets.add(new ReportFacet()); } } return res; } else if (artifact instanceof ChartArtifact) { ChartArtifact chart = (ChartArtifact)artifact; facets.add(new EmptyFacet()); return null; } return null; } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :