@Override
public ReplaceStatus replace(final K key, final V oldValue, final V newValue)
throws StoreAccessException {
conditionalReplaceObserver.begin();
try {
ConditionalReplaceOperation<K, V> operation =
new ConditionalReplaceOperation<K, V>(
key, oldValue, newValue, timeSource.getTimeMillis());
ByteBuffer payload = codec.encode(operation);
Chain chain = storeProxy.getAndAppend(key.hashCode(), payload);
ResolvedChain<K, V> resolvedChain = resolver.resolve(chain, key, timeSource.getTimeMillis());
Result<V> result = resolvedChain.getResolvedResult(key);
if (result != null) {
if (oldValue.equals(result.getValue())) {
conditionalReplaceObserver.end(StoreOperationOutcomes.ConditionalReplaceOutcome.REPLACED);
return ReplaceStatus.HIT;
} else {
conditionalReplaceObserver.end(StoreOperationOutcomes.ConditionalReplaceOutcome.MISS);
return ReplaceStatus.MISS_PRESENT;
}
} else {
conditionalReplaceObserver.end(StoreOperationOutcomes.ConditionalReplaceOutcome.MISS);
return ReplaceStatus.MISS_NOT_PRESENT;
}
} catch (RuntimeException re) {
handleRuntimeException(re);
return null;
}
}
@Override
public void remove(K key) {
checkKey(key);
removeOperationObserver.begin();
try {
map.remove(key);
} finally {
removeOperationObserver.end(StoreOperationOutcomes.RemoveOutcome.SUCCESS);
}
}
@Override
public boolean remove(final K key) throws StoreAccessException {
removeObserver.begin();
if (silentRemove(key)) {
removeObserver.end(StoreOperationOutcomes.RemoveOutcome.REMOVED);
return true;
} else {
removeObserver.end(StoreOperationOutcomes.RemoveOutcome.MISS);
return false;
}
}
@Override
public ValueHolder<V> get(final K key) throws StoreAccessException {
getObserver.begin();
V value = getInternal(key);
if (value == null) {
getObserver.end(StoreOperationOutcomes.GetOutcome.MISS);
return null;
} else {
getObserver.end(StoreOperationOutcomes.GetOutcome.HIT);
return new ClusteredValueHolder<V>(value);
}
}
@Override
public ValueHolder<V> getAndFault(K key) throws CacheAccessException {
getOperationObserver.begin();
checkKey(key);
OffHeapValueHolder<V> mappedValue = map.getAndPin(key);
if (mappedValue == null) {
getOperationObserver.end(StoreOperationOutcomes.GetOutcome.MISS);
} else {
getOperationObserver.end(StoreOperationOutcomes.GetOutcome.HIT);
}
return mappedValue;
}
@Override
public ValueHolder<V> get(K key) {
checkKey(key);
getOperationObserver.begin();
ValueHolder<V> result = internalGet(key, true);
if (result == null) {
getOperationObserver.end(StoreOperationOutcomes.GetOutcome.MISS);
} else {
getOperationObserver.end(StoreOperationOutcomes.GetOutcome.HIT);
}
return result;
}
@Override
public void put(final K key, final V value) throws CacheAccessException {
checkKey(key);
checkValue(value);
putOperationObserver.begin();
while (true) {
final long now = timeSource.getTimeMillis();
try {
map.compute(
key,
new BiFunction<K, OffHeapValueHolder<V>, OffHeapValueHolder<V>>() {
@Override
public OffHeapValueHolder<V> apply(K mappedKey, OffHeapValueHolder<V> mappedValue) {
if (mappedValue != null && mappedValue.isExpired(now, TimeUnit.MILLISECONDS)) {
mappedValue = null;
}
if (mappedValue == null) {
return newCreateValueHolder(key, value, now);
} else {
return newUpdatedValueHolder(key, value, mappedValue, now);
}
}
},
false);
return;
} catch (OversizeMappingException ex) {
handleOversizeMappingException(key, ex);
}
}
}
@Override
public PutStatus put(final K key, final V value) throws StoreAccessException {
putObserver.begin();
PutStatus status = silentPut(key, value);
switch (status) {
case PUT:
putObserver.end(StoreOperationOutcomes.PutOutcome.PUT);
break;
case UPDATE:
putObserver.end(StoreOperationOutcomes.PutOutcome.REPLACED);
break;
case NOOP:
putObserver.end(StoreOperationOutcomes.PutOutcome.NOOP);
break;
default:
throw new AssertionError("Invalid put status: " + status);
}
return status;
}
@Override
public ValueHolder<V> replace(final K key, final V value) throws StoreAccessException {
replaceObserver.begin();
try {
ReplaceOperation<K, V> operation =
new ReplaceOperation<K, V>(key, value, timeSource.getTimeMillis());
ByteBuffer payload = codec.encode(operation);
Chain chain = storeProxy.getAndAppend(key.hashCode(), payload);
ResolvedChain<K, V> resolvedChain = resolver.resolve(chain, key, timeSource.getTimeMillis());
Result<V> result = resolvedChain.getResolvedResult(key);
if (result == null) {
replaceObserver.end(StoreOperationOutcomes.ReplaceOutcome.MISS);
return null;
} else {
replaceObserver.end(StoreOperationOutcomes.ReplaceOutcome.REPLACED);
return new ClusteredValueHolder<V>(result.getValue());
}
} catch (RuntimeException re) {
handleRuntimeException(re);
return null;
}
}
