Mercurial > dive4elements > river
diff flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/FixingsOverviewFactory.java @ 2561:b3f6d49cdc80
Service to generate the data needed to build the "Fixerungen pro Fluss Uebersicht"
flys-artifacts/trunk@4087 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
---|---|
date | Sun, 19 Feb 2012 17:14:39 +0000 |
parents | |
children | 8bc1e1cb7f7b |
line wrap: on
line diff
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/FixingsOverviewFactory.java Sun Feb 19 17:14:39 2012 +0000 @@ -0,0 +1,60 @@ +package de.intevation.flys.artifacts.model; + +import de.intevation.flys.artifacts.cache.CacheFactory; + +import de.intevation.flys.backend.SessionHolder; + +import net.sf.ehcache.Cache; +import net.sf.ehcache.Element; + +import org.apache.log4j.Logger; + +import org.hibernate.Session; + +public class FixingsOverviewFactory +{ + private static Logger log = Logger.getLogger(FixingsOverviewFactory.class); + + public static final String CACHE_NAME = "fixings-overviews"; + + private FixingsOverviewFactory() { + } + + + public static FixingsOverview getOverview(String river) { + + log.debug("Looking for fixings overview for river '" + river + "'"); + + Cache cache = CacheFactory.getCache(CACHE_NAME); + + if (cache == null) { + return getUncached(river); + } + + String key = "fix-over-" + river; + + Element element = cache.get(key); + + if (element != null) { + return (FixingsOverview)element.getValue(); + } + + FixingsOverview overview = getUncached(river); + + if (overview != null) { + element = new Element(key, overview); + cache.put(element); + } + + return overview; + } + + public static FixingsOverview getUncached(String river) { + FixingsOverview overview = new FixingsOverview(river); + + Session session = SessionHolder.HOLDER.get(); + + return overview.load(session) ? overview : null; + } +} +// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :