Mercurial > dive4elements > river
view artifacts/src/main/java/org/dive4elements/river/artifacts/access/BedDifferencesAccess.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 | db97448f21b7 |
children | a1ceacf15d3a |
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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.access; import java.util.Arrays; import org.apache.log4j.Logger; import org.dive4elements.artifacts.CallContext; import org.dive4elements.river.artifacts.D4EArtifact; import org.dive4elements.river.utils.RiverUtils; import org.dive4elements.river.utils.StringUtil; public class BedDifferencesAccess extends RiverAccess { private static Logger logger = Logger.getLogger(BedDifferencesAccess.class); private String yearEpoch; private String [] diffs; private String [][] differenceArtifactIds; public BedDifferencesAccess(D4EArtifact artifact) { super(artifact); } public String getYearEpoch() { yearEpoch = getString("ye_select"); return yearEpoch; } public String [] getDiffs() { if (diffs == null) { diffs = getString("diffids").split("#"); if (logger.isDebugEnabled()) { logger.debug("diffs: " + Arrays.toString(diffs)); } } return diffs; } public String[][] getDifferenceArtifactIds() { if (differenceArtifactIds == null) { String [] diffs = getDiffs(); differenceArtifactIds = new String[diffs.length/2][2]; for (int i = 0; i < diffs.length/2; i++) { String diff1 = StringUtil.unbracket(diffs[0 + 2*i]); String diff2 = StringUtil.unbracket(diffs[1 + 2*i]); String[] diff1parts = diff1.split(";"); String[] diff2parts = diff2.split(";"); if (logger.isDebugEnabled()) { logger.debug("creating 2 artifacts." + diff1parts[0] + "; " + diff2parts[0]); } differenceArtifactIds[i][0] = diff1parts[0]; differenceArtifactIds[i][1] = diff2parts[0]; } } return differenceArtifactIds; } public String[] getDifferenceArtifactNamePairs() { String [] diffs = getDiffs(); String [] result = new String[diffs.length/2]; for (int i = 0; i < diffs.length/2; i++) { String diff1 = StringUtil.unbracket(diffs[0 + 2*i]); String diff2 = StringUtil.unbracket(diffs[1 + 2*i]); String[] diff1parts = diff1.split(";"); String[] diff2parts = diff2.split(";"); result[i] = diff1parts[3] + " - " + diff2parts[3]; } return result; } public int [][] extractHeightIds(CallContext context) { String [][] artifactsIds = getDifferenceArtifactIds(); int [][] ids = new int[artifactsIds.length][2]; for (int i = 0; i < artifactsIds.length; ++i) { D4EArtifact a1 = RiverUtils.getArtifact(artifactsIds[i][0], context); D4EArtifact a2 = RiverUtils.getArtifact(artifactsIds[i][1], context); ids[i][0] = getHeightId(a1); ids[i][1] = getHeightId(a2); } return ids; } public static int getHeightId(D4EArtifact artifact) { Access a = new Access(artifact); return a.getInteger("height_id"); } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :