Mercurial > dive4elements > river
view artifacts/src/main/java/org/dive4elements/river/artifacts/model/WWQQ.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 |
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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.model; import org.dive4elements.river.artifacts.math.Identity; import org.dive4elements.river.utils.DoubleUtil; import gnu.trove.TDoubleArrayList; public class WWQQ extends WW { public static class ApplyFunctionIterator extends WW.ApplyFunctionIterator { public ApplyFunctionIterator(WWQQ ww) { super(ww, Identity.IDENTITY, Identity.IDENTITY); } @Override public void get(int idx, double [] wwqqPair) { WWQQ wwqq = (WWQQ)ww; wwqqPair[0] = function1.value(wwqq.getW(idx)); wwqqPair[1] = function2.value(wwqq.getW2(idx)); wwqqPair[2] = wwqq.getQ1(idx); wwqqPair[3] = wwqq.getQ2(idx); } } // class ApplyFunctionIterator protected TDoubleArrayList qs1; protected TDoubleArrayList qs2; public WWQQ() { this(""); } public WWQQ(String name) { super(name); } public WWQQ(int capacity) { this(capacity, ""); } public WWQQ(int capacity, String name) { super(capacity, name); } public WWQQ( String name, double startKm, Double startDatum, double [] ws1, double [] qs1, double endKm, Double endDatum, double [] ws2, double [] qs2 ) { super(name, startKm, startDatum, ws1, endKm, endDatum, ws2); this.qs1 = new TDoubleArrayList(qs1); this.qs2 = new TDoubleArrayList(qs2); } public double getQ1(int idx) { return qs1.getQuick(idx); } public double getQ2(int idx) { return qs2.getQuick(idx); } public double [] getQs1() { return qs1.toNativeArray(); } public double [] getQs2() { return qs2.toNativeArray(); } @Override public double [] get(int idx) { return get(idx, new double[4]); } @Override public double [] get(int idx, double [] dst) { dst[0] = ws .getQuick(idx); dst[1] = ws2.getQuick(idx); dst[2] = qs1.getQuick(idx); dst[3] = qs2.getQuick(idx); return dst; } @Override public void removeNaNs() { DoubleUtil.removeNaNs(new TDoubleArrayList [] { ws, ws2, qs1, qs2 }); } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :