Mercurial > dive4elements > river
view artifacts/src/main/java/org/dive4elements/river/artifacts/model/SQOverviewFactory.java @ 7357:9d3e44ab25f2
Refactoring: Move functionality of BedHeightAccess into BedHeightFacet for now.
Idea is that Artifact and Access are lightweight. Access access the 'data'
('parameterization') attached to artifact, not the data delivered by means of
artifact and its parameterization.
author | Felix Wolfsteller <felix.wolfsteller@intevation.de> |
---|---|
date | Wed, 16 Oct 2013 10:42:45 +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 :