Mercurial > dive4elements > river
view artifacts/src/main/java/org/dive4elements/river/artifacts/services/FixingsOverviewService.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 | 9744ce3c3853 0a5239a1e46e |
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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.services; import org.dive4elements.artifacts.CallMeta; import org.dive4elements.artifacts.GlobalContext; import org.dive4elements.artifacts.common.utils.XMLUtils; import org.dive4elements.river.artifacts.model.FixingsFilterBuilder; import org.dive4elements.river.artifacts.model.FixingsOverview.Fixing.Filter; import org.dive4elements.river.artifacts.model.Range; import org.dive4elements.river.artifacts.model.FixingsOverview; import org.dive4elements.river.artifacts.model.FixingsOverviewFactory; import org.apache.log4j.Logger; import org.w3c.dom.Document; import org.w3c.dom.Element; import org.w3c.dom.NodeList; public class FixingsOverviewService extends D4EService { private static Logger log = Logger.getLogger(FixingsOverviewService.class); public FixingsOverviewService() { } @Override public Document doProcess( Document data, GlobalContext globalContext, CallMeta callMeta ) { log.debug("FixingsOverviewService.doProcess"); Document document = XMLUtils.newDocument(); NodeList nodes = data.getElementsByTagName("river"); String river = nodes.getLength() > 0 ? ((Element)nodes.item(0)).getAttribute("name") : ""; FixingsOverview overview = FixingsOverviewFactory.getOverview(river); if (overview != null) { FixingsFilterBuilder ffb = new FixingsFilterBuilder(data); Range range = ffb.getRange(); Filter filter = ffb.getFilter(); overview.generateOverview(document, range, filter); } else { log.warn("No overview for river '" + river + "' available."); } return document; } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :