コード例 #1
0
        public void RecoverBundles()
        {
            long id,
                 maxId = ID_NOT_RECEIVED_AT_BACKEND;
            bool responseAvailable,
                 localRecoveryDone,
                 remoteRecoveryDone;
            DateTime?selfLastUpdate;

            MessageQueue[] controlQueuesOpen,
            controlQueues = null;
            MessageQueue recoveryQueue     = null;
            var          ttrqBundleControl = TimeSpan.FromSeconds(Kiss.GetTimeout(KissTimeout.BUNDLE_CONTROL_TTRQ));
            var          ttbrBundleControl = TimeSpan.FromSeconds(Kiss.GetTimeout(KissTimeout.BUNDLE_CONTROL_TTBR));

            try
            {
                controlQueues     = new Neighborhood(_sql, FORMAT_BUNDLE_CONTROL_POSTFIX).GetOthersQueues().ToArray();
                controlQueuesOpen = new MessageQueue[controlQueues.Length];
                controlQueues.CopyTo(controlQueuesOpen, 0);
                recoveryQueue = new Neighborhood(_sql, FORMAT_BUNDLE_RECOVERY_POSTFIX).GetLocalQueue();

                localRecoveryDone = !(controlQueues.Length > 0);

                while (!localRecoveryDone)
                {
                    for (var i = 0; i < controlQueues.Length; i++)
                    {
                        if (controlQueuesOpen[i] == null)
                        {
                            continue;
                        }

                        using (var msg =
                                   new Message(_clientId)
                        {
                            ResponseQueue = recoveryQueue,
                            Formatter = controlQueues[i].Formatter,
                            TimeToReachQueue = ttrqBundleControl,
                            TimeToBeReceived = ttbrBundleControl,
                            Extension =
                                LargeMessage.ToMessageExtension(Guid.NewGuid())
                        })
                        {
                            responseAvailable = false;
                            controlQueues[i].Send(msg, MessageQueueTransactionType.Single);

                            for (var j = 0; j < MAX_RETRY_BUNDLE_RECOVERY && !responseAvailable; j++)
                            {
                                Thread.Sleep(SLEEP_BUNDLE_RECOVERY);
                                responseAvailable = LargeMessage.IsCorrelationAvailable(recoveryQueue, msg.Id);
                            }

                            if (responseAvailable)
                            {
                                using (var response = recoveryQueue.
                                                      ReceiveByCorrelationId(msg.Id, MessageQueueTransactionType.Single))
                                {
                                    id = (long)response.Body;

                                    if (id > maxId)
                                    {
                                        maxId = id;
                                    }
                                }

                                controlQueuesOpen[i] = null;
                            }
                        }
                    }

                    localRecoveryDone = Array.TrueForAll(controlQueuesOpen, q => q == null);
                }

                RemoveAllBundlesAndStages();

                do
                {
                    QueryStageList(true);
                    WaitForSelfStage(true, null, out id, out selfLastUpdate);

                    remoteRecoveryDone = id != ID_NO_ANSWER_FROM_BACKEND;

                    if (!remoteRecoveryDone)
                    {
                        Thread.Sleep(SLEEP_BUNDLE_RECOVERY);
                    }
                } while (!remoteRecoveryDone);

                if (id > maxId)
                {
                    maxId = id;
                }

                if (maxId != ID_NOT_RECEIVED_AT_BACKEND)
                {
                    new Bundle(_sql, maxId, _clientId, _msmqCapacity).Recover();
                }
            }
            finally
            {
                if (recoveryQueue != null)
                {
                    recoveryQueue.Dispose();
                }

                if (controlQueues != null)
                {
                    foreach (var queue in controlQueues)
                    {
                        queue.Dispose();
                    }
                }
            }
        }
コード例 #2
0
        public void RecoverPersistentObjects()
        {
            bool localRecoveryDone;
            List <MessageQueue> controlQueues = null;
            MessageQueue        recoveryQueue = null;
            var poListener    = new PersistentObjectListener(_sql, _msmqCapacity);
            var ttrqPoControl = TimeSpan.FromSeconds(Kiss.GetTimeout(KissTimeout.PO_CONTROL_TTRQ));
            var ttbrPoControl = TimeSpan.FromSeconds(Kiss.GetTimeout(KissTimeout.PO_CONTROL_TTBR));

            try
            {
                controlQueues = new Neighborhood(_sql, FORMAT_PO_CONTROL_POSTFIX).GetOthersQueues();
                recoveryQueue = new Neighborhood(_sql, FORMAT_PO_RECOVERY_POSTFIX).GetLocalQueue();

                localRecoveryDone = !(controlQueues.Count > 0);

                if (localRecoveryDone)
                {
                    poListener.Recover(recoveryQueue, string.Empty);
                }

                while (!localRecoveryDone)
                {
                    foreach (var controlQueue in controlQueues)
                    {
                        using (var msg = new Message {
                            ResponseQueue = recoveryQueue,
                            Formatter = controlQueue.Formatter,
                            TimeToReachQueue = ttrqPoControl,
                            TimeToBeReceived = ttbrPoControl,
                            Extension = LargeMessage.ToMessageExtension(Guid.NewGuid())
                        })
                        {
                            controlQueue.Send(msg, MessageQueueTransactionType.Single);

                            for (var i = 0; i < MAX_RETRY_PO_RECOVERY && !localRecoveryDone; i++)
                            {
                                Thread.Sleep(SLEEP_PO_RECOVERY);
                                localRecoveryDone = LargeMessage.IsCorrelationAvailable(recoveryQueue, msg.Id);
                            }

                            if (localRecoveryDone)
                            {
                                poListener.Recover(recoveryQueue, msg.Id);
                                break;
                            }
                        }
                    }
                }
            }
            finally
            {
                if (recoveryQueue != null)
                {
                    recoveryQueue.Dispose();
                }

                if (controlQueues != null)
                {
                    foreach (var queue in controlQueues)
                    {
                        queue.Dispose();
                    }
                }
            }
        }