@Test
public void testFlushUpdatesAccessStats() throws CacheAccessException {
final TestTimeSource timeSource = new TestTimeSource();
final Expiry<Object, Object> expiry =
Expirations.timeToIdleExpiration(new Duration(15L, TimeUnit.MILLISECONDS));
final AbstractOffHeapStore<String, String> store = createAndInitStore(timeSource, expiry);
try {
final String key = "foo";
final String value = "bar";
store.put(key, value);
final Store.ValueHolder<String> firstValueHolder = store.getAndFault(key);
store.put(key, value);
final Store.ValueHolder<String> secondValueHolder = store.getAndFault(key);
timeSource.advanceTime(10);
((AbstractValueHolder) firstValueHolder)
.accessed(timeSource.getTimeMillis(), expiry.getExpiryForAccess(key, value));
timeSource.advanceTime(10);
((AbstractValueHolder) secondValueHolder)
.accessed(timeSource.getTimeMillis(), expiry.getExpiryForAccess(key, value));
assertThat(store.flush(key, new DelegatingValueHolder<String>(firstValueHolder)), is(false));
assertThat(store.flush(key, new DelegatingValueHolder<String>(secondValueHolder)), is(true));
timeSource.advanceTime(10); // this should NOT affect
assertThat(
store.getAndFault(key).lastAccessTime(TimeUnit.MILLISECONDS),
is(secondValueHolder.creationTime(TimeUnit.MILLISECONDS) + 20));
} finally {
destroyStore(store);
}
}
private OffHeapValueHolder<V> newCreateValueHolder(K key, V value, long now) {
Duration duration = expiry.getExpiryForCreation(key, value);
if (Duration.ZERO.equals(duration)) {
return null;
}
if (duration.isForever()) {
return new OffHeapValueHolder<V>(value, now, OffHeapValueHolder.NO_EXPIRE);
} else {
return new OffHeapValueHolder<V>(value, now, safeExpireTime(now, duration));
}
}
private void setAccessTimeAndExpiry(K key, OffHeapValueHolder<V> valueHolder, long now) {
valueHolder.setLastAccessTime(now, OffHeapValueHolder.TIME_UNIT);
Duration duration = expiry.getExpiryForAccess(key, valueHolder.value());
if (duration != null) {
if (duration.isForever()) {
valueHolder.setExpirationTime(ValueHolder.NO_EXPIRE, null);
} else {
valueHolder.setExpirationTime(safeExpireTime(now, duration), OffHeapValueHolder.TIME_UNIT);
}
}
valueHolder.writeBack();
}
private OffHeapValueHolder<V> newUpdatedValueHolder(
K key, V value, OffHeapValueHolder<V> existing, long now) {
Duration duration = expiry.getExpiryForUpdate(key, existing.value(), value);
if (Duration.ZERO.equals(duration)) {
return null;
}
if (duration == null) {
return new OffHeapValueHolder<V>(
value, now, existing.expirationTime(OffHeapValueHolder.TIME_UNIT));
} else if (duration.isForever()) {
return new OffHeapValueHolder<V>(value, now, OffHeapValueHolder.NO_EXPIRE);
} else {
return new OffHeapValueHolder<V>(value, now, safeExpireTime(now, duration));
}
}