Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/artifacts/model/FastCrossSectionLineFactory.java @ 5838:5aa05a7a34b7

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Rename modules to more fitting names.
author Sascha L. Teichmann <teichmann@intevation.de>
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
rev   line source
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Sascha L. Teichmann <teichmann@intevation.de>
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1 package org.dive4elements.river.artifacts.model;
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2
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3 import org.dive4elements.river.artifacts.cache.CacheFactory;
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5 import org.dive4elements.river.model.CrossSection;
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6
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7 import org.dive4elements.river.model.FastCrossSectionLine;
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9 import net.sf.ehcache.Cache;
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10 import net.sf.ehcache.Element;
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12 import java.util.List;
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13
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14 import org.apache.log4j.Logger;
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16 public class FastCrossSectionLineFactory
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17 {
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18 private static Logger log =
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19 Logger.getLogger(FastCrossSectionLineFactory.class);
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20
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21 public static final String CACHE_NAME = "fast-cross-section-lines";
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23 private FastCrossSectionLineFactory() {
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24 }
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26 public static FastCrossSectionLine getCrossSectionLine(
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27 CrossSection cs,
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28 double km
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29 ) {
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30 Cache cache = CacheFactory.getCache(CACHE_NAME);
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31
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32 boolean debug = log.isDebugEnabled();
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33
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34 if (cache == null) {
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35 if (debug) {
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36 log.debug("No cross section chunk cache configured.");
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37 }
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38 List<FastCrossSectionLine> lines = cs.getFastLines(km, km);
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39 return lines.isEmpty() ? null : lines.get(0);
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40 }
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42 String cacheKey = FastCrossSectionChunk.createHashKey(cs, km);
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44 Element element = cache.get(cacheKey);
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46 FastCrossSectionChunk fcsc;
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48 if (element != null) {
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49 if (debug) {
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50 log.debug("Found cross section chunk in cache id: " +
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51 cs.getId() + " km: " + km);
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52 }
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53
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54 fcsc = (FastCrossSectionChunk)element.getValue();
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55 }
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56 else {
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57 if (debug) {
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58 log.debug("Not found cross section chunk in cache id: " +
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59 cs.getId() + " km: " + km + " -> loading");
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60 }
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61 fcsc = new FastCrossSectionChunk(cs, km);
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62 element = new Element(cacheKey, fcsc);
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63 cache.put(element);
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64 }
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65
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66 return fcsc.getCrossSectionLine(km);
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67 }
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68 }
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69 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org