@Test
@Ignore // FIXME started breaking 8/10
public void testRefreshNoisily() throws Exception {
final CountingCacheEntryFactory factory = new CountingCacheEntryFactory("value");
CountingCacheEventListener countingCacheEventListener = new CountingCacheEventListener();
CountingCacheEventListener.resetCounters();
cache.getCacheEventNotificationService().registerListener(countingCacheEventListener);
selfPopulatingCache = new SelfPopulatingCache(cache, factory);
// check initial conditions on counters
assertEquals(0, CountingCacheEventListener.getCacheElementsPut(cache).size());
assertEquals(0, CountingCacheEventListener.getCacheElementsUpdated(cache).size());
Element e1 = selfPopulatingCache.get("key1");
Element e2 = selfPopulatingCache.get("key2");
assertEquals(2, factory.getCount());
assertEquals(2, CountingCacheEventListener.getCacheElementsPut(cache).size());
assertEquals(0, CountingCacheEventListener.getCacheElementsUpdated(cache).size());
long lastUpdateTime1 = e1.getLastUpdateTime();
long lastUpdateTime2 = e2.getLastUpdateTime();
// wait a little so creation time to allow CPU clock to advance
Thread.sleep(100L);
// full refresh
selfPopulatingCache.refresh(false);
assertEquals(4, factory.getCount());
assertEquals(2, CountingCacheEventListener.getCacheElementsPut(cache).size());
assertEquals(2, CountingCacheEventListener.getCacheElementsUpdated(cache).size());
e1 = selfPopulatingCache.get("key1");
e2 = selfPopulatingCache.get("key2");
assertEquals(4, factory.getCount());
assertEquals(2, CountingCacheEventListener.getCacheElementsPut(cache).size());
assertEquals(2, CountingCacheEventListener.getCacheElementsUpdated(cache).size());
assertFalse(
"getLastUpdateTime() should not be the same (" + lastUpdateTime1 + ")",
lastUpdateTime1 == e1.getLastUpdateTime());
assertFalse(
"getLastUpdateTime() should not be the same (" + lastUpdateTime2 + ")",
lastUpdateTime2 == e2.getLastUpdateTime());
lastUpdateTime2 = e2.getLastUpdateTime();
// wait a little to allow CPU clock to advance
Thread.sleep(100L);
// single element refresh
e2 = selfPopulatingCache.refresh("key2", false);
assertEquals(5, factory.getCount());
assertEquals(2, CountingCacheEventListener.getCacheElementsPut(cache).size());
assertEquals(3, CountingCacheEventListener.getCacheElementsUpdated(cache).size());
assertFalse(
"getLastUpdateTime() should not be the same (" + lastUpdateTime2 + ")",
lastUpdateTime2 == e2.getLastUpdateTime());
}
/** Tests that an entry is created once only. */
public void testCreateOnce() throws Exception {
final String value = "value";
final CountingCacheEntryFactory factory = new CountingCacheEntryFactory(value);
selfPopulatingCache = new SelfPopulatingCache(cache, factory);
// Fetch the value several times
for (int i = 0; i < 5; i++) {
assertSame(value, selfPopulatingCache.get("key").getObjectValue());
assertEquals(1, factory.getCount());
}
}
/** Tests refreshing the entries. */
public void testRefresh() throws Exception {
final String value = "value";
final CountingCacheEntryFactory factory = new CountingCacheEntryFactory(value);
selfPopulatingCache = new SelfPopulatingCache(cache, factory);
// Check the value
assertSame(value, selfPopulatingCache.get("key").getObjectValue());
assertEquals(1, factory.getCount());
// Refresh
selfPopulatingCache.refresh();
assertEquals(2, factory.getCount());
// Check the value
assertSame(value, selfPopulatingCache.get("key").getObjectValue());
assertEquals(2, factory.getCount());
}
/** Tests refreshing the entries. */
@Test
public void testRefreshWithException() throws Exception {
final String value = "value";
final CountingCacheEntryFactory factory = new CountingCacheEntryFactory(value);
selfPopulatingCache = new SelfPopulatingCache(cache, factory);
// Check the value
String explodingKey = "explode";
assertSame(value, selfPopulatingCache.get(explodingKey).getObjectValue());
assertEquals(1, factory.getCount());
// Refresh
try {
selfPopulatingCache.refresh();
fail("This should have exploded!");
} catch (CacheException e) {
assertNotNull(e.getCause());
assertEquals(
e.getCause().getMessage() + " on refresh with key " + explodingKey, e.getMessage());
}
}
