Mercurial > dive4elements > river
diff artifacts/src/main/java/org/dive4elements/river/artifacts/model/FastCrossSectionLineFactory.java @ 5838:5aa05a7a34b7
Rename modules to more fitting names.
author | Sascha L. Teichmann <teichmann@intevation.de> |
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date | Thu, 25 Apr 2013 15:23:37 +0200 |
parents | flys-artifacts/src/main/java/org/dive4elements/river/artifacts/model/FastCrossSectionLineFactory.java@bd047b71ab37 |
children | 4897a58c8746 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/artifacts/src/main/java/org/dive4elements/river/artifacts/model/FastCrossSectionLineFactory.java Thu Apr 25 15:23:37 2013 +0200 @@ -0,0 +1,69 @@ +package org.dive4elements.river.artifacts.model; + +import org.dive4elements.river.artifacts.cache.CacheFactory; + +import org.dive4elements.river.model.CrossSection; + +import org.dive4elements.river.model.FastCrossSectionLine; + +import net.sf.ehcache.Cache; +import net.sf.ehcache.Element; + +import java.util.List; + +import org.apache.log4j.Logger; + +public class FastCrossSectionLineFactory +{ + private static Logger log = + Logger.getLogger(FastCrossSectionLineFactory.class); + + public static final String CACHE_NAME = "fast-cross-section-lines"; + + private FastCrossSectionLineFactory() { + } + + public static FastCrossSectionLine getCrossSectionLine( + CrossSection cs, + double km + ) { + Cache cache = CacheFactory.getCache(CACHE_NAME); + + boolean debug = log.isDebugEnabled(); + + if (cache == null) { + if (debug) { + log.debug("No cross section chunk cache configured."); + } + List<FastCrossSectionLine> lines = cs.getFastLines(km, km); + return lines.isEmpty() ? null : lines.get(0); + } + + String cacheKey = FastCrossSectionChunk.createHashKey(cs, km); + + Element element = cache.get(cacheKey); + + FastCrossSectionChunk fcsc; + + if (element != null) { + if (debug) { + log.debug("Found cross section chunk in cache id: " + + cs.getId() + " km: " + km); + } + + fcsc = (FastCrossSectionChunk)element.getValue(); + } + else { + if (debug) { + log.debug("Not found cross section chunk in cache id: " + + cs.getId() + " km: " + km + " -> loading"); + } + fcsc = new FastCrossSectionChunk(cs, km); + element = new Element(cacheKey, fcsc); + cache.put(element); + } + + return fcsc.getCrossSectionLine(km); + } +} +// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :