@Test
public void testReadThroughSimpleCase() {
CacheManager manager = new CacheManager();
manager.removalAll();
CacheConfiguration config =
new CacheConfiguration()
.name("sampleCacheReadThru")
.maxElementsInMemory(100)
.timeToIdleSeconds(8)
.timeToLiveSeconds(8)
.overflowToDisk(false);
manager.addCache(new Cache(config));
Ehcache cache = manager.getEhcache("sampleCacheReadThru");
ReadThroughCacheConfiguration readThroughConfig =
new ReadThroughCacheConfiguration().modeGet(true).build();
ReadThroughCache decorator = new ReadThroughCache(cache, readThroughConfig);
cache.registerCacheLoader(stringifyCacheLoader);
// should not be in the cache
Element got = cache.get(new Integer(1));
Assert.assertNull(got);
// now load with decorator via get
got = decorator.get(new Integer(1));
Assert.assertNotNull(got);
// now should be in the base cache
got = cache.get(new Integer(1));
Assert.assertNotNull(got);
// now let it expire.
sleepySeconds(10);
// missing
got = cache.get(new Integer(1));
Assert.assertNull(got);
// now load with get with loader
got = decorator.get(new Integer(1));
Assert.assertNotNull(got);
// now should be in the base cache too.
got = cache.get(new Integer(1));
Assert.assertNotNull(got);
manager.removalAll();
manager.shutdown();
}
/** Service SHUTDOWN */
public void destroy() {
try {
cacheManager.clearAll();
cacheManager.removalAll(); // removeAllCaches()
cacheManager.shutdown();
} catch (CacheException e) {
// NOTHING TO DO HERE
log.warn("destroy() cache shutdown failure: " + e);
}
cacheManager = null; // release
log.info("SHUTDOWN");
}
@AfterClass
public static void tearDownClass() {
cacheManager.removalAll();
cacheManager.shutdown();
}