Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/artifacts/model/FastCrossSectionLineFactory.java @ 9726:0a5239a1e46e 3.2.x

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Upgrade to Log4j 2
author Tom Gottfried <tom@intevation.de>
date Wed, 02 Mar 2022 10:26:50 +0100
parents af13ceeba52a
children
rev   line source
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1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
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2 * Software engineering by Intevation GmbH
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3 *
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4 * This file is Free Software under the GNU AGPL (>=v3)
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5 * and comes with ABSOLUTELY NO WARRANTY! Check out the
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6 * documentation coming with Dive4Elements River for details.
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7 */
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8
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9 package org.dive4elements.river.artifacts.model;
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10
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11 import org.dive4elements.river.artifacts.cache.CacheFactory;
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12
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13 import org.dive4elements.river.model.CrossSection;
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14
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15 import org.dive4elements.river.model.FastCrossSectionLine;
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16
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17 import net.sf.ehcache.Cache;
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18 import net.sf.ehcache.Element;
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19
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20 import java.util.List;
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21
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22 import org.apache.logging.log4j.Logger;
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23 import org.apache.logging.log4j.LogManager;
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24
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25 public class FastCrossSectionLineFactory
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26 {
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27 private static Logger log =
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28 LogManager.getLogger(FastCrossSectionLineFactory.class);
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29
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30 public static final String CACHE_NAME = "fast-cross-section-lines";
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31
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32 private FastCrossSectionLineFactory() {
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33 }
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34
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35 public static FastCrossSectionLine getCrossSectionLine(
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36 CrossSection cs,
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37 double km
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38 ) {
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39 Cache cache = CacheFactory.getCache(CACHE_NAME);
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40
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41 boolean debug = log.isDebugEnabled();
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42
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43 if (cache == null) {
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44 if (debug) {
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45 log.debug("No cross section chunk cache configured.");
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46 }
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47 List<FastCrossSectionLine> lines = cs.getFastLines(km, km);
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48 return lines.isEmpty() ? null : lines.get(0);
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49 }
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50
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51 String cacheKey = FastCrossSectionChunk.createHashKey(cs, km);
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52
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53 Element element = cache.get(cacheKey);
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54
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55 FastCrossSectionChunk fcsc;
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56
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57 if (element != null) {
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58 if (debug) {
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59 log.debug("Found cross section chunk in cache id: " +
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60 cs.getId() + " km: " + km);
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61 }
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62
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63 fcsc = (FastCrossSectionChunk)element.getValue();
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64 }
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65 else {
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66 if (debug) {
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67 log.debug("Not found cross section chunk in cache id: " +
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68 cs.getId() + " km: " + km + " -> loading");
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69 }
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70 fcsc = new FastCrossSectionChunk(cs, km);
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71 element = new Element(cacheKey, fcsc);
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72 cache.put(element);
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73 }
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75 return fcsc.getCrossSectionLine(km);
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76 }
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77 }
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78 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org