private KeyColumnValueStore getLockStore(KeyColumnValueStore store, boolean lockEnabled)
throws StorageException {
if (!storeFeatures.supportsLocking()) {
if (storeFeatures.supportsTransactions()) {
store = new TransactionalLockStore(store);
} else if (storeFeatures.supportsConsistentKeyOperations()) {
if (lockEnabled) {
final String lockerName = store.getName() + LOCK_STORE_SUFFIX;
store = new ExpectedValueCheckingStore(store, getLocker(lockerName));
} else {
store = new ExpectedValueCheckingStore(store, null);
}
} else throw new IllegalArgumentException("Store needs to support some form of locking");
}
return store;
}