Couchbase.ObserveHandler.checkNodesForKey C# (CSharp) Method

        private IObserveOperationResult checkNodesForKey(ObservedNode[] nodes, IObserveOperation command, ref bool isMasterInExpectedState, ref int replicaFoundCount, ref int replicaPersistedCount)
        {
            var tmpReplicaFoundCount = 0;
            var tmpReplicaPersistedCount = 0;
            var tmpIsPersistedToMaster = false;
            var result = new ObserveOperationResult();

            var lockObject = new object();
            foreach (var node in nodes)
            {
                lock (lockObject)
                {
                    var opResult = node.Node.ExecuteObserveOperation(command);

                    if (log.IsDebugEnabled) log.Debug("Node: " + node.Node.EndPoint + ", Result: " + opResult.KeyState + ", Master: " + node.IsMaster + ", Cas: " + opResult.Cas + ", Key: " + _settings.Key);

                    if (!opResult.Success) //Probably an IO Exception
                    {
                        break;
                    }
                    else if (node.IsMaster && opResult.Cas != _settings.Cas)
                    {
                        result.Success = false;
                        result.Message = ObserveOperationConstants.MESSAGE_MODIFIED;
                        break;
                    }
                    else if (opResult.KeyState == ObserveKeyState.FoundPersisted)
                    {
                        node.KeyIsPersisted = true;
                        if (node.IsMaster)
                        {
                            tmpIsPersistedToMaster = true;
                        }
                        else
                        {
                            tmpReplicaPersistedCount++;
                        }
                    }
                    else if (opResult.KeyState == ObserveKeyState.FoundNotPersisted)
                    {
                        if (!node.IsMaster)
                        {
                            tmpReplicaFoundCount++;
                        }
                    }
                }
            }

            isMasterInExpectedState = tmpIsPersistedToMaster;
            replicaFoundCount = tmpReplicaFoundCount;
            replicaPersistedCount = tmpReplicaPersistedCount;

            if (log.IsDebugEnabled) log.Debug("Master Persisted: " + tmpIsPersistedToMaster + ", Replica Found: " + replicaFoundCount + ", Replica Persisted: " + tmpReplicaPersistedCount);

            return result;
        }