Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/artifacts/cache/CacheFactory.java @ 171:7fb9441dd8af

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Format Code to max 80 Chars per Row and Cleanup gnv-artifacts/trunk@208 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Tim Englich <tim.englich@intevation.de>
date Fri, 09 Oct 2009 07:54:48 +0000
parents bb45c5097cb6
children 9a828e5a2390
rev   line source
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1 /**
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2 *
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3 */
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4 package de.intevation.gnv.artifacts.cache;
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5
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6 import net.sf.ehcache.Cache;
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7 import net.sf.ehcache.CacheManager;
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8
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9 import org.apache.log4j.Logger;
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10
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11 /**
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12 * @author Tim Englich <tim.englich@intevation.de>
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13 *
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14 */
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15 public class CacheFactory {
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16
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17 /**
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18 * the logger, used to log exceptions and additonaly information
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19 */
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20 private static Logger log = Logger.getLogger(CacheFactory.class);
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21
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22 private final static String CACHENAME = "artifactdata";
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23
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24 /**
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25 * The singleton Instance of this Factory.
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26 */
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27 private static CacheFactory instance = null;
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28
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29 /**
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30 *
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31 */
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32 private CacheManager cacheManager = null;
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33
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34 /**
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35 * Basic-Constructor of this Class
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36 */
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37 private CacheFactory() {
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38 super();
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39 }
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40
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41 /**
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42 * This Method provides an singleton Instance of this Class.
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43 *
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44 * @return an singleton Instance of this Class
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45 */
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46 public static CacheFactory getInstance() {
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47 if (instance == null) {
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48 instance = new CacheFactory();
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49 }
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50 return instance;
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51 }
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52
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53 /**
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54 * Getting the ConnectionPool
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55 *
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56 * @return the ConnectionPool
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57 */
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58 public Cache getCache() {
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59 return this.cacheManager.getCache(CACHENAME);
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60 }
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61
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62 /**
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63 * Initializes the ConnectionPool. Should only be called once on system
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64 * startup
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65 *
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66 * @param properties
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67 * the Properties for the Individual Configuration of the
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68 * ConnectionPool
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69 */
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70 public void initializeCache(String configurationFileName) {
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71 if (cacheManager == null) {
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72 cacheManager = new CacheManager(configurationFileName);
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73 cacheManager.addCache(CACHENAME);
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74 }
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75 }
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77 /**
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78 * Checks if the ConnectionPool has already been initialized.
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79 *
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80 * @return true if the ConnectionPool is initialized.
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81 */
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82 public boolean isInitialized() {
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83 return this.cacheManager != null;
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84 }
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85
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86 }
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