Package net.sf.ehcache

Examples of net.sf.ehcache.Ehcache

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  @Test
  public void testPutRetreive() {
    Thread.currentThread().setContextClassLoader(getClass().getClassLoader());
    CacheManager cacheManager = CacheManager.getInstance();
    Ehcache ehcache = cacheManager.getEhcache("testCache");

    ehcache.put(new Element("testKey", "testValue"));
    stats(ehcache);
    Assert.assertEquals("testValue", ehcache.get("testKey").getObjectValue());
  }
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  @Test
  public void testSizing() {
    Thread.currentThread().setContextClassLoader(getClass().getClassLoader());
    CacheManager cacheManager = CacheManager.getInstance();
    Ehcache ehcache = cacheManager.getEhcache("testCache");
    for (int i = 0; i < 30000; i++) {
      if ((i % 1000) == 0) {
        System.out.println("heatbeat " + i);
        stats(ehcache);
      }
      ehcache.put(new Element(i, new byte[1024]));
    }
    stats(ehcache);
    Assert.assertTrue(true);
  }
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  @Test
  public void testOffHeapExceedMemory()
          throws IOException {
    Thread.currentThread().setContextClassLoader(getClass().getClassLoader());
    CacheManager cacheManager = CacheManager.getInstance();
    Ehcache ehcache = cacheManager.getEhcache("testCache");
    Element element = null;
    try {
      for (int i = 0; i < 3000000; i++) {
        if ((i % 1000) == 0) {
          System.out.println("heatbeat 2 " + i);
          stats(ehcache);
        }
        element = new Element(i, new byte[1024]);
        ehcache.put(element);
      }
      Assert.fail("CacheException expected for DirectMemory OffHeap Memory Exceeded");
    } catch (CacheException e) {
      stats(ehcache);
      Assert.assertTrue("CacheException expected for DirectMemory OffHeap Memory Exceeded", true);
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            cacheManager = EHCacheUtil.createCacheManager(conf);
        }
       
        CacheConfiguration requestCC = EHCacheUtil.getCacheConfiguration(REQUEST_CACHE_KEY, cacheManager);
       
        Ehcache newCache = new Cache(requestCC);
        requestCache = cacheManager.addCacheIfAbsent(newCache);
       
        CacheConfiguration responseCC = EHCacheUtil.getCacheConfiguration(RESPONSE_CACHE_KEY, cacheManager);
       
        newCache = new Cache(responseCC);
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            cacheManager = EHCacheUtil.createCacheManager(conf);
        }
       
        CacheConfiguration cc = EHCacheUtil.getCacheConfiguration(CACHE_KEY, cacheManager);
       
        Ehcache newCache = new Cache(cc);
        cache = cacheManager.addCacheIfAbsent(newCache);
    }
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        // Cannot overflow to disk as SecurityToken Elements can't be serialized
        @SuppressWarnings("deprecation")
        CacheConfiguration cc = EHCacheManagerHolder.getCacheConfiguration(key, cacheManager)
            .overflowToDisk(false); //tokens not writable
       
        Ehcache newCache = new Cache(cc);
        cache = cacheManager.addCacheIfAbsent(newCache);
       
        // Set the TimeToLive value from the CacheConfiguration
        ttl = cc.getTimeToLiveSeconds();
    }
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        }
        cacheManager = EHCacheManagerHolder.getCacheManager(bus, configFileURL);
       
        CacheConfiguration cc = EHCacheManagerHolder.getCacheConfiguration(key, cacheManager);

        Ehcache newCache = new Cache(cc);
        cache = cacheManager.addCacheIfAbsent(newCache);
       
        // Set the TimeToLive value from the CacheConfiguration
        ttl = cc.getTimeToLiveSeconds();
    }
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        }

        LOG.debug("Found an existing cache: " + cacheName);
        LOG.debug("Cache " + cacheName + " currently contains " + cacheManager.getCache(cacheName).getSize()
                 + " elements");
        Ehcache cache = cacheManager.getCache(cacheName);
        if (!cache.isKeyInCache(key)) {
            if (LOG.isDebugEnabled()) {
                LOG.debug("No Key with name: "
                      + key
                      + "presently exists in the cache. It is also possible that the key may have expired in the cache");
                LOG.debug("Replacement will not be performed until an appropriate key/value pair is added to (or) found in the cache.");
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        LOG.debug("Found an existing cache: {}", cacheName);

        if (LOG.isTraceEnabled()) {
            LOG.trace("Cache {} currently contains {} elements", cacheName, cacheManager.getCache(cacheName).getSize());
        }
        Ehcache cache = cacheManager.getCache(cacheName);

        if (!cache.isKeyInCache(key)) {
            LOG.debug("No Key with name: {} presently exists in the cache. It is also possible that the key may have expired in the cache."
                    + " Replacement will not be performed until an appropriate key/value pair is added to (or) found in the cache.", key);
            return false;
        }
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     *
     * @return {@link Cache}
     */
    public Ehcache initializeCache() {
        CacheManager cacheManager = getCacheManagerFactory().getInstance();
        Ehcache cache;
        if (cacheManager.cacheExists(config.getCacheName())) {
            if (LOG.isTraceEnabled()) {
                LOG.trace("Found an existing cache: {}", config.getCacheName());
                LOG.trace("Cache {} currently contains {} elements",
                        config.getCacheName(),
                        cacheManager.getEhcache(config.getCacheName()).getSize());
            }
            cache = cacheManager.getEhcache(config.getCacheName());
        } else {
            cache = new Cache(config.getCacheName(),
                    config.getMaxElementsInMemory(),
                    config.getMemoryStoreEvictionPolicy(),
                    config.isOverflowToDisk(),
                    config.getDiskStorePath(),
                    config.isEternal(),
                    config.getTimeToLiveSeconds(),
                    config.getTimeToIdleSeconds(),
                    config.isDiskPersistent(),
                    config.getDiskExpiryThreadIntervalSeconds(),
                    null);

            for (CacheEventListener listener : config.getEventListenerRegistry().getEventListeners()) {
                cache.getCacheEventNotificationService().registerListener(listener);
            }

            for (CacheLoaderWrapper loader : config.getCacheLoaderRegistry().getCacheLoaders()) {
                loader.init(cache);
                cache.registerCacheLoader(loader);
            }

            cacheManager.addCache(cache);

            if (LOG.isDebugEnabled()) {
                LOG.debug("Added a new cache: " + cache.getName());
            }
        }

        return cache;
    }
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