Mercurial > dive4elements > river
annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/FastCrossSectionLineFactory.java @ 4187:21f4e4b79121
Refactor GaugeDischargeCurveFacet to be able to set a facet name
For adding another output of the GaugeDischargeCurveArtifact it is necessary to
provide to facet instances with different names. Therefore the
GaugeDischargeCurveFacet is extended to set the facet name in the constructor.
author | Björn Ricks <bjoern.ricks@intevation.de> |
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date | Fri, 19 Oct 2012 13:25:49 +0200 |
parents | d626ae185305 |
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rev | line source |
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Added cached/chunked access to cross section lines. TODO: Use the FastCrossSectionLines.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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1 package de.intevation.flys.artifacts.model; |
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2 |
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3 import de.intevation.flys.artifacts.cache.CacheFactory; |
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4 |
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5 import de.intevation.flys.model.CrossSection; |
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6 |
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7 import de.intevation.flys.model.FastCrossSectionLine; |
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8 |
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9 import net.sf.ehcache.Cache; |
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10 import net.sf.ehcache.Element; |
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11 |
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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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15 |
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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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22 |
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23 private FastCrossSectionLineFactory() { |
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24 } |
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25 |
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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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parents:
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40 } |
dc28ea60b53d
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41 |
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42 String cacheKey = FastCrossSectionChunk.createHashKey(cs, km); |
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43 |
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44 Element element = cache.get(cacheKey); |
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45 |
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46 FastCrossSectionChunk fcsc; |
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47 |
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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 : |