Mercurial > dive4elements > river
annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/FastCrossSectionLineFactory.java @ 4655:cd44d28d0fbc
Move the access to artifact data to the Access object
Use BedHeightAccess class to receive the data from the artifact. This abstracts
the data access from the actual artifact.
author | Björn Ricks <bjoern.ricks@intevation.de> |
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date | Tue, 11 Dec 2012 09:44:04 +0100 |
parents | d626ae185305 |
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rev | line source |
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dc28ea60b53d
Added cached/chunked access to cross section lines. TODO: Use the FastCrossSectionLines.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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1 package de.intevation.flys.artifacts.model; |
dc28ea60b53d
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2 |
dc28ea60b53d
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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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parents:
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8 |
dc28ea60b53d
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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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 |
dc28ea60b53d
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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"; |
dc28ea60b53d
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22 |
dc28ea60b53d
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23 private FastCrossSectionLineFactory() { |
dc28ea60b53d
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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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parents:
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41 |
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42 String cacheKey = FastCrossSectionChunk.createHashKey(cs, km); |
dc28ea60b53d
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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 : |