public static void Run()
{
try
{
InitializeCache();
IDurableTopicSubscription electronicsSharedSubs = RunSubscriber("ElectronicsOrders", "ElectronicsSubscription", SubscriptionPolicy.Shared);
IDurableTopicSubscription garmentsExclusiveSubs = RunSubscriber("GarmentsOrders", "GarmentsSubscription", SubscriptionPolicy.Exclusive);
//Following patterns can be used;
//* - represents zero or more characters. For example, ‘bl*’ finds TOPICs ‘black’, ‘blue’, and ‘blob’ etc.
//? - represents one character. For example, ‘h?t’ finds ‘hot’, ‘hat’, and ‘hit’ etc.
//[]- represents any single character within the brackets. For example, ‘h[oa]t’ finds hot and hat, but not hit.
IDurableTopicSubscription allOrdersSubscription = RunPatternBasedSubscriber("*Orders", "AllOrdersSubscription");
Console.WriteLine("Press any key to stop all subscribers...");
Console.ReadLine();
electronicsSharedSubs.UnSubscribe();
garmentsExclusiveSubs.UnSubscribe();
allOrdersSubscription.UnSubscribe();
}
catch (CacheException ex)
{
if (ex.ErrorCode == NCacheErrorCodes.SUBSCRIPTION_EXISTS)
{
Console.WriteLine("Active Subscription with this name already exists");
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
}
private void DoInternalSubscription(string eventName)
{
var containsKey = _subsManager.HasSubscriptionsForEvent(eventName);
if (!containsKey)
{
if (_subscription == null)
{
var topic = _persistantConnection.CreateModel();
if (topic == null)
{
_logger.LogError($"Unable to subscribe to event {eventName} due to topic creation issues");
return;
}
_subscription = topic.CreateDurableSubscription(
_subscriptionName,
SubscriptionPolicy.Shared,
(o, args) =>
{
var payLoad = args.Message.Payload as Tuple <string, string>;
var eventName1 = payLoad.Item1;
var message = payLoad.Item2;
ProcessEvent(eventName1, message).Wait();
});
}
}
}
private void CreateRelevantSubscribtion()
{
try
{
MessageReceivedCallback transactonmessageReceivedCallback = new TransactionCompletedMessage(this).MessageReceivedCallback;
transactionSubscription = CreateRelevantSubscribtions(Topics.REPLIESTOPICS, transactonmessageReceivedCallback);
}
catch
{
throw;
}
}
private void CreateRelevantSubscribtion()
{
try
{
// initializes the relevant subscribers with their call backs
MessageReceivedCallback fraudManagermessageReceivedCallback = new TransactionStartedMessage(this).MessageReceivedCallback;
_subscriptions = CreateRelevantSubscribtions(Topics.TRANSACTIONTOPICS, fraudManagermessageReceivedCallback);
}
catch
{
throw;
}
}
