private async Task ProvisionSubscriptionAsync(ServiceBus manager, string topicName, string subscriptionName) { await ProvisionTopicAsync(manager, topicName, true); if (!(await manager.SubscriptionExistsAsync(topicName, subscriptionName))) { _logger.LogDebug($"Provisioning subscription: '{topicName}/{subscriptionName}'"); // TODO :: Implement retry policies try { await manager.CreateSubscriptionAsync(new SubscriptionDescription(topicName, subscriptionName) { AutoDeleteOnIdle = _options.AutoDeleteOnIdle, DefaultMessageTimeToLive = _options.MessageTimeToLive, EnableBatchedOperations = _options.EnableServerSideBatchedOperations, LockDuration = _options.MessageLockDuration, MaxDeliveryCount = _options.MaximumDeliveryCount }); _logger.LogInformation($"Provisioned subscription: '{topicName}/{subscriptionName}'"); } catch (Exception ex) { _logger.LogError($"An error occured whilst provisioning subscription: '{topicName}/{subscriptionName}'", ex); } } else { _logger.LogDebug($"Subscription '{topicName}/{subscriptionName}' already exists, no need to provision."); } RemoveOperation(topicName); }
/// <summary> /// Checks if a topic by the provided <paramref name="topicName"/> exists and /// Checks if a subscription name by the provided <paramref name="subscriptionName"/> exists. /// </summary> protected virtual void CheckTopicExists(Manager manager, string topicName, string subscriptionName) { // Configure Queue Settings var eventTopicDescription = new TopicDescription(topicName) { #if NET452 MaxSizeInMegabytes = 5120, #endif #if NETSTANDARD2_0 MaxSizeInMB = 5120, #endif DefaultMessageTimeToLive = new TimeSpan(0, 25, 0), EnablePartitioning = true, EnableBatchedOperations = true, }; #if NETSTANDARD2_0 Task <bool> checkTask = manager.TopicExistsAsync(topicName); checkTask.Wait(1500); if (!checkTask.Result) { Task <TopicDescription> createTopicTask = manager.CreateTopicAsync(eventTopicDescription); createTopicTask.Wait(1500); } checkTask = manager.SubscriptionExistsAsync(topicName, subscriptionName); checkTask.Wait(1500); if (!checkTask.Result) { var subscriptionDescription = new SubscriptionDescription(topicName, subscriptionName) { DefaultMessageTimeToLive = eventTopicDescription.DefaultMessageTimeToLive, EnableBatchedOperations = eventTopicDescription.EnableBatchedOperations, }; Task <SubscriptionDescription> createTask = manager.CreateSubscriptionAsync(subscriptionDescription); createTask.Wait(1500); } #endif #if NET452 // Create the topic if it does not exist already if (!manager.TopicExists(eventTopicDescription.Path)) { manager.CreateTopic(eventTopicDescription); } if (!manager.SubscriptionExists(eventTopicDescription.Path, subscriptionName)) { manager.CreateSubscription ( new SubscriptionDescription(eventTopicDescription.Path, subscriptionName) { DefaultMessageTimeToLive = new TimeSpan(0, 25, 0), EnableBatchedOperations = true, EnableDeadLetteringOnFilterEvaluationExceptions = true } ); } #endif }