/// <summary>
///
/// <para>CustomSubscribe:</para>
///
/// <para>Subscribes to given custom topic</para>
///
/// <para>Check <seealso cref="IBPubSubServiceInterface.CustomSubscribe"/> for detailed documentation</para>
///
/// </summary>
public bool CustomSubscribe(
string _CustomTopic,
Action <string, string> _OnMessage,
Action <string> _ErrorMessageAction = null, bool _SubscribeSingleMessage = false)
{
if (_CustomTopic != null && _CustomTopic.Length > 0 && _OnMessage != null)
{
FailoverCheck();
try
{
RedisConnection.GetSubscriber().Subscribe(
_CustomTopic,
(RedisChannel Channel, RedisValue Value) =>
{
if (UniqueMessageDeliveryEnsurer != null)
{
var Message = Value.ToString();
UniqueMessageDeliveryEnsurer.Subscribe_ClearAndExtractTimestampFromMessage(ref Message, out string TimestampHash);
if (UniqueMessageDeliveryEnsurer.Subscription_EnsureUniqueDelivery(Channel, TimestampHash, _ErrorMessageAction))
{
_OnMessage?.Invoke(Channel, Message);
}
}
else
{
_OnMessage?.Invoke(Channel, Value.ToString());
}
});
/// <summary>
///
/// <para>CustomSubscribe:</para>
///
/// <para>Subscribes to given custom topic</para>
///
/// <para>Check <seealso cref="IBPubSubServiceInterface.CustomSubscribe"/> for detailed documentation</para>
///
/// </summary>
public bool CustomSubscribe(string _CustomTopic, Action <string, string> _OnMessage, Action <string> _ErrorMessageAction = null, bool _SubscribeSingleMessage = false)
{
if (_CustomTopic != null && _CustomTopic.Length > 0 && _OnMessage != null && BUtility.CalculateStringMD5(_CustomTopic, out string TopicMD5, _ErrorMessageAction))
{
if (EnsureQueueExists(TopicMD5, out string QueueUrl, _ErrorMessageAction))
{
var SubscriptionCancellationVar = new BValue <bool>(false, EBProducerStatus.MultipleProducer);
var SubscriptionThread = new Thread(() =>
{
Thread.CurrentThread.IsBackground = true;
while (!SubscriptionCancellationVar.Get())
{
ReceiveMessageResponse Response;
try
{
using (var ReceiveMessageTask = SQSClient.ReceiveMessageAsync(QueueUrl))
{
ReceiveMessageTask.Wait();
Response = ReceiveMessageTask.Result;
}
}
catch (Exception e)
{
Response = null;
_ErrorMessageAction?.Invoke("BPubSubServiceAWS->CustomSubscribe: " + e.Message + ", Trace: " + e.StackTrace);
if (e.InnerException != null && e.InnerException != e)
{
_ErrorMessageAction?.Invoke("BPubSubServiceAWS->CustomSubscribe->Inner: " + e.InnerException.Message + ", Trace: " + e.InnerException.StackTrace);
}
}
if (Response == null || Response.Messages == null || Response.Messages.Count == 0)
{
Thread.Sleep(1000);
continue;
}
var AckDictionary = new Dictionary <string, string>();
foreach (var MessageContainer in Response.Messages)
{
if (MessageContainer != null)
{
if (!AckDictionary.ContainsKey(MessageContainer.MessageId))
{
AckDictionary.Add(MessageContainer.MessageId, MessageContainer.ReceiptHandle);
}
string Data = MessageContainer.Body;
if (UniqueMessageDeliveryEnsurer != null)
{
UniqueMessageDeliveryEnsurer.Subscribe_ClearAndExtractTimestampFromMessage(ref Data, out string TimestampHash);
if (UniqueMessageDeliveryEnsurer.Subscription_EnsureUniqueDelivery(_CustomTopic, TimestampHash, _ErrorMessageAction))
{
_OnMessage?.Invoke(_CustomTopic, Data);
}
}
else
{
_OnMessage?.Invoke(_CustomTopic, Data);
}
}
}
var AckArray = new List <DeleteMessageBatchRequestEntry>();
foreach (var Current in AckDictionary)
{
AckArray.Add(new DeleteMessageBatchRequestEntry(Current.Key, Current.Value));
}
try
{
using (var DeleteMessageBatchTask = SQSClient.DeleteMessageBatchAsync(QueueUrl, AckArray))
{
DeleteMessageBatchTask.Wait();
}
}
catch (Exception e)
{
_ErrorMessageAction?.Invoke("BPubSubServiceAWS->CustomSubscribe: " + e.Message + ", Trace: " + e.StackTrace);
if (e.InnerException != null && e.InnerException != e)
{
_ErrorMessageAction?.Invoke("BPubSubServiceAWS->CustomSubscribe->Inner: " + e.InnerException.Message + ", Trace: " + e.InnerException.StackTrace);
}
}
}
});
SubscriptionThread.Start();
lock (SubscriberThreadsDictionaryLock)
{
SubscriberThreadsDictionary.Add(_CustomTopic, new BTuple <Thread, BValue <bool> >(SubscriptionThread, SubscriptionCancellationVar));
}
return(true);
}
}
return(false);
}
/// <summary>
///
/// <para>CustomSubscribe:</para>
///
/// <para>Subscribes to given custom topic</para>
///
/// <para>Check <seealso cref="IBPubSubServiceInterface.CustomSubscribe"/> for detailed documentation</para>
///
/// </summary>
public bool CustomSubscribe(
string _CustomTopic,
Action <string, string> _OnMessage,
Action <string> _ErrorMessageAction = null, bool _SubscribeSingleMessage = false)
{
if (_CustomTopic != null && _CustomTopic.Length > 0 && _OnMessage != null)
{
_CustomTopic = GetGoogleFriendlyTopicName(_CustomTopic);
if (GetSubscriber(out SubscriberServiceApiClient APIClientVar, out SubscriptionName SubscriptionNameVar, _CustomTopic, _ErrorMessageAction))
{
var SubscriptionCancellationVar = new BValue <bool>(false, EBProducerStatus.MultipleProducer);
var SubscriptionThread = new Thread(() =>
{
Thread.CurrentThread.IsBackground = true;
while (!SubscriptionCancellationVar.Get())
{
PullResponse Response = null;
try
{
Response = APIClientVar.Pull(SubscriptionNameVar, true, 1000);
}
catch (Exception e)
{
if (e is RpcException && (e as RpcException).StatusCode == StatusCode.DeadlineExceeded)
{
Thread.Sleep(1000);
continue;
}
Response = null;
_ErrorMessageAction?.Invoke("BPubSubServiceGC->CustomSubscribe: " + e.Message + ", Trace: " + e.StackTrace);
if (e.InnerException != null && e.InnerException != e)
{
_ErrorMessageAction?.Invoke("BPubSubServiceGC->CustomSubscribe->Inner: " + e.InnerException.Message + ", Trace: " + e.InnerException.StackTrace);
}
}
if (Response == null || Response.ReceivedMessages == null || !Response.ReceivedMessages.Any())
{
Thread.Sleep(1000);
continue;
}
var MessageContainers = Response.ReceivedMessages.ToArray();
if (MessageContainers != null && MessageContainers.Length > 0)
{
var AckArray = new List <string>();
foreach (var MessageContainer in MessageContainers)
{
if (MessageContainer != null)
{
if (!AckArray.Contains(MessageContainer.AckId))
{
AckArray.Add(MessageContainer.AckId);
}
string Topic = GetTopicNameFromGoogleFriendlyName(_CustomTopic);
string Data = MessageContainer.Message.Data.ToStringUtf8();
if (UniqueMessageDeliveryEnsurer != null)
{
UniqueMessageDeliveryEnsurer.Subscribe_ClearAndExtractTimestampFromMessage(ref Data, out string TimestampHash);
if (UniqueMessageDeliveryEnsurer.Subscription_EnsureUniqueDelivery(Topic, TimestampHash, _ErrorMessageAction))
{
_OnMessage?.Invoke(Topic, Data);
}
}
else
{
_OnMessage?.Invoke(Topic, Data);
}
}
}
try
{
APIClientVar.Acknowledge(SubscriptionNameVar, AckArray);
}
catch (Exception e)
{
if (e is RpcException && (e as RpcException).Status.StatusCode == StatusCode.InvalidArgument)
{
//That is fine, probably due to previous subscriptions
}
else
{
_ErrorMessageAction?.Invoke("BPubSubServiceGC->CustomSubscribe: " + e.Message + ", Trace: " + e.StackTrace);
if (e.InnerException != null && e.InnerException != e)
{
_ErrorMessageAction?.Invoke("BPubSubServiceGC->CustomSubscribe->Inner: " + e.InnerException.Message + ", Trace: " + e.InnerException.StackTrace);
}
}
}
}
}
});
SubscriptionThread.Start();
lock (SubscriberThreadsDictionaryLock)
{
SubscriberThreadsDictionary.Add(SubscriptionNameVar, new BTuple <Thread, BValue <bool> >(SubscriptionThread, SubscriptionCancellationVar));
}
return(true);
}
}
return(false);
}
public bool CustomSubscribe(string _CustomTopic, Action <string, string> _OnMessage, Action <string> _ErrorMessageAction = null, bool _SubscribeSingleMessage = false)
{
if (_CustomTopic != null && _CustomTopic.Length > 0 &&
_OnMessage != null)
{
_CustomTopic = GetAzureFriendlyTopicName(_CustomTopic);
if (EnsureTopicExists(_CustomTopic, out ITopicClient _TopicClient, _ErrorMessageAction))
{
if (EnsureSubscriptionExists(_CustomTopic, _TopicClient, out Microsoft.Azure.ServiceBus.ISubscriptionClient _SubscriptionClient, _ErrorMessageAction))
{
var SubscriptionCancellationVar = new BValue <bool>(false, EBProducerStatus.MultipleProducer);
var SubscriptionThread = new Thread(() =>
{
Thread.CurrentThread.IsBackground = true;
try
{
// Define exception receiver handler
Func <ExceptionReceivedEventArgs, Task> ExceptionReceiverHandler = (ExceptionReceivedEventArgs _EventArgs) =>
{
_ErrorMessageAction?.Invoke($"BPubSubServiceAzure->CustomSubscribe->ExceptionReceiverHandler: {_EventArgs.Exception.Message}, Action: {_EventArgs.ExceptionReceivedContext.Action}, EntityPath: {_EventArgs.ExceptionReceivedContext.EntityPath}, Endpoint: {_EventArgs.ExceptionReceivedContext.Endpoint}, ClientId: {_EventArgs.ExceptionReceivedContext.ClientId}, Trace: {_EventArgs.Exception.StackTrace}");
RemoveSubscriberThread(_CustomTopic);
if (!_SubscriptionClient.IsClosedOrClosing)
{
using (var CloseSubscriptionTask = _SubscriptionClient.CloseAsync())
{
CloseSubscriptionTask.Wait();
}
}
return(Task.CompletedTask);
};
// Configure the message handler options in terms of exception handling, number of concurrent messages to deliver, etc.
var messageHandlerOptions = new MessageHandlerOptions(ExceptionReceiverHandler)
{
// Maximum number of concurrent calls to the callback ProcessMessagesAsync(), set to 1 for simplicity.
// Set it according to how many messages the application wants to process in parallel.
MaxConcurrentCalls = 1,
// Indicates whether the message pump should automatically complete the messages after returning from user callback.
// False below indicates the complete operation is handled by the user callback as in ProcessMessagesAsync().
AutoComplete = false
};
// Register the function that processes messages.
_SubscriptionClient.RegisterMessageHandler(async(Message MessageContainer, CancellationToken token) =>
{
if (MessageContainer != null)
{
string Topic = GetTopicNameFromAzureFriendlyName(_CustomTopic);
string Data = Encoding.UTF8.GetString(MessageContainer.Body);
if (MessageContainer.Label != null &&
MessageContainer.Label.Equals(_CustomTopic))
{
_ErrorMessageAction?.Invoke("BPubSubServiceAzure->CustomSubscribe: Received [Internal] pub/sub message.");
}
else
{
_ErrorMessageAction?.Invoke("BPubSubServiceAzure->CustomSubscribe: Received [StorageAccount] pub/sub message.");
}
if (UniqueMessageDeliveryEnsurer != null)
{
UniqueMessageDeliveryEnsurer.Subscribe_ClearAndExtractTimestampFromMessage(ref Data, out string TimestampHash);
if (UniqueMessageDeliveryEnsurer.Subscription_EnsureUniqueDelivery(Topic, TimestampHash, _ErrorMessageAction))
{
_OnMessage?.Invoke(Topic, Data);
RemoveSubscriberThread(_CustomTopic);
if (!_SubscriptionClient.IsClosedOrClosing)
{
await _SubscriptionClient.CloseAsync();
}
}
}
else
{
_OnMessage?.Invoke(Topic, Data);
}
await _SubscriptionClient.CompleteAsync(MessageContainer.SystemProperties.LockToken);
if (_SubscribeSingleMessage)
{
RemoveSubscriberThread(_CustomTopic);
if (!_SubscriptionClient.IsClosedOrClosing)
{
await _SubscriptionClient.CloseAsync();
}
}
}
}, messageHandlerOptions);
}
catch (Exception e)
{
_ErrorMessageAction?.Invoke("BPubSubServiceAzure->CustomSubscribe: " + e.Message + ", Trace: " + e.StackTrace);
if (e.InnerException != null && e.InnerException != e)
{
_ErrorMessageAction?.Invoke("BPubSubServiceAzure->CustomSubscribe->InnerException: " + e.InnerException.Message + ", Trace: " + e.InnerException.StackTrace);
}
RemoveSubscriberThread(_CustomTopic);
if (!_SubscriptionClient.IsClosedOrClosing)
{
using (var CloseSubscriptionTask = _SubscriptionClient.CloseAsync())
{
CloseSubscriptionTask.Wait();
}
}
}
while (!SubscriptionCancellationVar.Get())
{
//Wait until delete
Thread.Sleep(500);
}
if (!_SubscriptionClient.IsClosedOrClosing)
{
using (var CloseSubscriptionTask = _SubscriptionClient.CloseAsync())
{
CloseSubscriptionTask.Wait();
}
}
});
SubscriptionThread.Start();
lock (SubscriberThreadsDictionaryLock)
{
SubscriberThreadsDictionary.Add(_CustomTopic, new BTuple <Thread, BValue <bool> >(SubscriptionThread, SubscriptionCancellationVar));
}
return(true);
}
}
}
return(false);
}
