Mercurial > dive4elements > river
view artifacts/src/main/java/org/dive4elements/river/artifacts/states/ScenarioSelect.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.ProtocolUtils; import org.dive4elements.artifacts.Artifact; import org.dive4elements.artifacts.CallContext; import org.dive4elements.artifacts.CallMeta; import org.dive4elements.artifacts.common.utils.FileTools; import org.dive4elements.artifacts.common.utils.XMLUtils; import org.dive4elements.artifacts.common.utils.XMLUtils.ElementCreator; import org.dive4elements.river.artifacts.D4EArtifact; import org.dive4elements.river.artifacts.resources.Resources; import org.dive4elements.river.utils.RiverUtils; import java.io.File; import org.apache.log4j.Logger; import org.w3c.dom.Element; /** * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> */ public class ScenarioSelect extends DefaultState { /** The logger that is used in this class.*/ private static Logger logger = Logger.getLogger(ScenarioSelect.class); public static final String FIELD_MODE = "scenario"; public static final String SCENARIO_CURRENT = "scenario.current"; public static final String SCENARIO_POTENTIEL = "scenario.potentiel"; public static final String SCENARIO_SCENRAIO = "scenario.scenario"; public static final String[] SCENARIOS = { SCENARIO_CURRENT, SCENARIO_POTENTIEL, SCENARIO_SCENRAIO }; @Override protected String getUIProvider() { return ""; } @Override protected Element[] createItems( XMLUtils.ElementCreator cr, Artifact artifact, String name, CallContext context) { CallMeta meta = context.getMeta(); if (name.equals(FIELD_MODE)) { Element[] scenarios = new Element[SCENARIOS.length]; int i = 0; for (String scenario: SCENARIOS) { scenarios[i++] = createItem( cr, new String[] { Resources.getMsg(meta, scenario, scenario), scenario }); } return scenarios; } else { D4EArtifact flys = (D4EArtifact) artifact; String data = flys.getDataAsString(name); return new Element[] { createItem( cr, new String[] { Resources.getMsg(meta, name, name), data } )}; } } @Override protected Element createItem(XMLUtils.ElementCreator cr, Object obj) { Element item = ProtocolUtils.createArtNode(cr, "item", null, null); Element label = ProtocolUtils.createArtNode(cr, "label", null, null); Element value = ProtocolUtils.createArtNode(cr, "value", null, null); String[] arr = (String[]) obj; label.setTextContent(arr[0]); value.setTextContent(arr[1]); item.appendChild(label); item.appendChild(value); return item; } @Override public void endOfLife(Artifact artifact, Object callContext) { super.endOfLife(artifact, callContext); logger.info("ScenarioSelect.endOfLife: " + artifact.identifier()); D4EArtifact flys = (D4EArtifact) artifact; removeDirectory(flys); } /** * Removes the directory and all its content where the required data and the * results of WSPLGEN are stored. Should be called in endOfLife(). */ // FIXME: I've seen this code somewhere else... protected void removeDirectory(D4EArtifact artifact) { String shapePath = RiverUtils.getXPathString( RiverUtils.XPATH_FLOODMAP_SHAPEFILE_DIR); File artifactDir = new File(shapePath, artifact.identifier()); if (artifactDir.exists()) { logger.debug("Delete directory: " + artifactDir.getAbsolutePath()); boolean success = FileTools.deleteRecursive(artifactDir); if (!success) { logger.warn("could not remove dir '" + artifactDir + "'"); } } else { logger.debug("There is no directory to remove."); } } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :