public Task Init(Func <MessageContext, Task> onMessage, Func <ErrorContext, Task <ErrorHandleResult> > onError, CriticalError criticalError, PushSettings settings)
{
peekCircuitBreaker = new RepeatedFailuresOverTimeCircuitBreaker("MsmqPeek", TimeSpan.FromSeconds(30), ex => criticalError.Raise("Failed to peek " + settings.InputQueue, ex));
receiveCircuitBreaker = new RepeatedFailuresOverTimeCircuitBreaker("MsmqReceive", TimeSpan.FromSeconds(30), ex => criticalError.Raise("Failed to receive from " + settings.InputQueue, ex));
var inputAddress = MsmqAddress.Parse(settings.InputQueue);
var errorAddress = MsmqAddress.Parse(settings.ErrorQueue);
if (!string.Equals(inputAddress.Machine, RuntimeEnvironment.MachineName, StringComparison.OrdinalIgnoreCase))
{
throw new Exception($"MSMQ Dequeuing can only run against the local machine. Invalid inputQueue name '{settings.InputQueue}'.");
}
inputQueue = new MessageQueue(inputAddress.FullPath, false, true, QueueAccessMode.Receive);
errorQueue = new MessageQueue(errorAddress.FullPath, false, true, QueueAccessMode.Send);
if (settings.RequiredTransactionMode != TransportTransactionMode.None && !QueueIsTransactional())
{
throw new ArgumentException($"Queue must be transactional if you configure the endpoint to be transactional ({settings.InputQueue}).");
}
inputQueue.MessageReadPropertyFilter = DefaultReadPropertyFilter;
if (settings.PurgeOnStartup)
{
inputQueue.Purge();
}
receiveStrategy = receiveStrategyFactory(settings.RequiredTransactionMode);
receiveStrategy.Init(inputQueue, errorQueue, onMessage, onError, criticalError);
return(TaskEx.CompletedTask);
}
public Task StartReceive(CancellationToken cancellationToken = default)
{
MessageQueue.ClearConnectionCache();
messagePumpCancellationTokenSource = new CancellationTokenSource();
messageProcessingCancellationTokenSource = new CancellationTokenSource();
peekCircuitBreaker = new RepeatedFailuresOverTimeCircuitBreaker("MsmqPeek", TimeSpan.FromSeconds(30),
ex => criticalErrorAction("Failed to peek " + receiveSettings.ReceiveAddress, ex, messageProcessingCancellationTokenSource.Token));
receiveCircuitBreaker = new RepeatedFailuresOverTimeCircuitBreaker("MsmqReceive", TimeSpan.FromSeconds(30),
ex => criticalErrorAction("Failed to receive from " + receiveSettings.ReceiveAddress, ex, messageProcessingCancellationTokenSource.Token));
// LongRunning is useless combined with async/await
messagePumpTask = Task.Run(() => PumpMessages(), cancellationToken);
return(Task.CompletedTask);
}
public Task StartReceive(CancellationToken cancellationToken = default)
{
MessageQueue.ClearConnectionCache();
messagePumpCancellationTokenSource = new CancellationTokenSource();
messageProcessingCancellationTokenSource = new CancellationTokenSource();
peekCircuitBreaker = new RepeatedFailuresOverTimeCircuitBreaker("MsmqPeek", TimeSpan.FromSeconds(30),
ex => criticalErrorAction("Failed to peek " + receiveSettings.ReceiveAddress, ex, messageProcessingCancellationTokenSource.Token));
receiveCircuitBreaker = new RepeatedFailuresOverTimeCircuitBreaker("MsmqReceive", TimeSpan.FromSeconds(30),
ex => criticalErrorAction("Failed to receive from " + receiveSettings.ReceiveAddress, ex, messageProcessingCancellationTokenSource.Token));
// Task.Run() so the call returns immediately instead of waiting for the first await or return down the call stack
// LongRunning is useless combined with async/await
messagePumpTask = Task.Run(() => PumpMessagesAndSwallowExceptions(messagePumpCancellationTokenSource.Token), CancellationToken.None);
return(Task.CompletedTask);
}
