Mercurial > dive4elements > river
view artifacts/src/main/java/org/dive4elements/river/artifacts/model/SQOverviewFactory.java @ 8755:30b1ddadf275
(issue1801) Unify reference gauge finding code
The basic way as described in the method comment of the
determineRefGauge method is now used in the WINFOArtifact,
MainValuesService and RiverUtils.getGauge method.
RiverUtils.getGauge previously just returned the first
gauge found. While this is now a behavior change I believe
that it is always more correct then the undeterministic
behavior of the previous implmenentation.
author | Andre Heinecke <andre.heinecke@intevation.de> |
---|---|
date | Wed, 24 Jun 2015 14:07:26 +0200 |
parents | af13ceeba52a |
children | 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.model; import org.dive4elements.river.artifacts.cache.CacheFactory; import org.dive4elements.river.backend.SedDBSessionHolder; import net.sf.ehcache.Cache; import net.sf.ehcache.Element; import org.apache.log4j.Logger; import org.hibernate.Session; public class SQOverviewFactory { private static Logger log = Logger.getLogger(SQOverviewFactory.class); public static final String CACHE_NAME = "sq-overviews"; private SQOverviewFactory() { } public static SQOverview getOverview(String river) { boolean debug = log.isDebugEnabled(); if (debug) { log.debug( "Looking for sq overview for river '" + river + "'"); } Cache cache = CacheFactory.getCache(CACHE_NAME); if (cache == null) { if (debug) { log.debug("Cache not configured."); } return getUncached(river); } String key = "sq-over-" + river; Element element = cache.get(key); if (element != null) { if (debug) { log.debug("Overview found in cache"); } return (SQOverview)element.getValue(); } SQOverview overview = getUncached(river); if (overview != null) { if (debug) { log.debug("Store overview in cache."); } cache.put(new Element(key, overview)); } return overview; } public static SQOverview getUncached(String river) { SQOverview overview = new SQOverview(river); Session session = SedDBSessionHolder.HOLDER.get(); return overview.load(session) ? overview : null; } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :