public static Func <RecoverabilityConfig, ErrorContext, RecoverabilityAction> AlwaysMoveToErrors(string errorQueueAddress = "errorQueue")
{
return(new RetryPolicy(new[]
{
RecoverabilityAction.MoveToError(errorQueueAddress)
}).Invoke);
}
RecoverabilityAction MyCustomRetryPolicy(RecoverabilityConfig config, ErrorContext context)
{
// early decisions and return before custom policy is invoked
// i.e. all unrecoverable exceptions should always go to customized error queue
foreach (var exceptionType in config.Failed.UnrecoverableExceptionTypes)
{
if (exceptionType.IsInstanceOfType(context.Exception))
{
return(RecoverabilityAction.MoveToError("customErrorQueue"));
}
}
// If it does not make sense to have this message around anymore
// it can be discarded with a reason.
if (context.Exception is MyBusinessTimedOutException)
{
return(RecoverabilityAction.Discard("Business operation timed out."));
}
// override delayed retry decision for custom exception
// i.e. MyOtherBusinessException should do fixed backoff of 5 seconds
if (context.Exception is MyOtherBusinessException &&
context.DelayedDeliveriesPerformed < config.Delayed.MaxNumberOfRetries)
{
return(RecoverabilityAction.DelayedRetry(TimeSpan.FromSeconds(5)));
}
// in all other cases No Immediate or Delayed Retries, go to default error queue
return(RecoverabilityAction.MoveToError(config.Failed.ErrorQueue));
}
static async Task <ValidationException> Send(object message, [CallerMemberName] string key = null)
{
var configuration = new EndpointConfiguration("DataAnnotationsIncoming" + key);
configuration.UseTransport <LearningTransport>();
configuration.PurgeOnStartup(true);
configuration.DisableFeature <TimeoutManager>();
var resetEvent = new ManualResetEvent(false);
configuration.RegisterComponents(components => components.RegisterSingleton(resetEvent));
ValidationException exception = null;
var recoverability = configuration.Recoverability();
recoverability.CustomPolicy(
(config, context) =>
{
exception = (ValidationException)context.Exception;
resetEvent.Set();
return(RecoverabilityAction.MoveToError("error"));
});
configuration.UseDataAnnotationsValidation(outgoing: false);
var endpoint = await Endpoint.Start(configuration);
await endpoint.SendLocal(message);
if (!resetEvent.WaitOne(TimeSpan.FromSeconds(2)))
{
throw new Exception("No Set received.");
}
return(exception);
}
protected override void Setup(FeatureConfigurationContext context)
{
#region DrainTempQueueSatellite
var settings = context.Settings;
var qualifiedAddress = settings.LogicalAddress()
.CreateQualifiedAddress("New");
var tempQueue = settings.GetTransportAddress(qualifiedAddress);
var mainQueue = settings.LocalAddress();
context.AddSatelliteReceiver(
name: "DrainTempQueueSatellite",
transportAddress: tempQueue,
runtimeSettings: new PushRuntimeSettings(maxConcurrency: 1),
recoverabilityPolicy: (config, errorContext) =>
{
return(RecoverabilityAction.MoveToError(config.Failed.ErrorQueue));
},
onMessage: (builder, messageContext) =>
{
var messageDispatcher = builder.Build <IDispatchMessages>();
var outgoingHeaders = messageContext.Headers;
var outgoingMessage = new OutgoingMessage(messageContext.MessageId, outgoingHeaders, messageContext.Body);
var outgoingOperation = new TransportOperation(outgoingMessage, new UnicastAddressTag(mainQueue));
Console.WriteLine($"Moving message from {tempQueue} to {mainQueue}");
var transportOperations = new TransportOperations(outgoingOperation);
return(messageDispatcher.Dispatch(transportOperations, messageContext.TransportTransaction, messageContext.Context));
});
#endregion
}
private static RecoverabilityAction CustomerExceptionPolicy(RecoverabilityConfig config, ErrorContext context)
{
var unrecover = context.Exception is UnrecoverableException;
var customer = context.Exception is CustomerException;
var immediateIdx = context.ImmediateProcessingFailures;
var immediateMax = config.Immediate.MaxNumberOfRetries;
var delayIdx = context.DelayedDeliveriesPerformed;
var delayMax = config.Delayed.MaxNumberOfRetries;
if (!unrecover && immediateIdx < immediateMax)
{
Console.WriteLine($"DelayedRetry {delayIdx}, ImmediateRetry {immediateIdx}");
return(RecoverabilityAction.ImmediateRetry());
}
if (!unrecover && immediateIdx == immediateMax && delayIdx < delayMax)
{
Console.WriteLine($"DelayedRetry {delayIdx}");
return(RecoverabilityAction.DelayedRetry(config.Delayed.TimeIncrease));
}
if (customer && delayIdx == delayMax)
{
Console.WriteLine("Alert customer exception");
}
return(RecoverabilityAction.MoveToError(config.Failed.ErrorQueue));
}
static RecoverabilityAction OrderPlacedPolicy(RecoverabilityConfig config, ErrorContext context)
{
var errorCategory = ErrorCategory.Unknown;
if (context.Message.Headers.ContainsKey("NServiceBus.EnclosedMessageTypes"))
{
if (context.Message.Headers["NServiceBus.EnclosedMessageTypes"].StartsWith("Messages.Commands.PlaceOrder"))
{
errorCategory = FailPolicy.GetPolicy("Messages.Commands.PlaceOrder").GetCategory(context.Exception);
}
else if (context.Message.Headers["NServiceBus.EnclosedMessageTypes"].StartsWith("Messages.Commands.CancelOrder"))
{
errorCategory = FailPolicy.GetPolicy("Messages.Commands.CancelOrder").GetCategory(context.Exception);
}
}
if (errorCategory == ErrorCategory.Persistent)
{
return(RecoverabilityAction.MoveToError(config.Failed.ErrorQueue));
}
else if (errorCategory == ErrorCategory.SemiTransient)
{
return(RecoverabilityAction.DelayedRetry(TimeSpan.FromSeconds(60)));
}
// invocation of default recoverability policy
return(DefaultRecoverabilityPolicy.Invoke(config, context));
}
public RetryEndpoint()
{
EndpointSetup <DefaultServer>((configure, context) =>
{
configure.Recoverability()
.CustomPolicy((cfg, errorContext) => RecoverabilityAction.MoveToError(cfg.Failed.ErrorQueue));
});
}
RecoverabilityAction RetryPolicy(RecoverabilityConfig config, ErrorContext context)
{
if (context.DelayedDeliveriesPerformed == 0)
{
return(RecoverabilityAction.DelayedRetry(TimeSpan.FromMilliseconds(10)));
}
return(RecoverabilityAction.MoveToError(config.Failed.ErrorQueue));
}
RecoverabilityAction MyCustomRetryPolicy(RecoverabilityConfig config, ErrorContext context)
{
if (context.Exception is MyBusinessException)
{
return(RecoverabilityAction.MoveToError(config.Failed.ErrorQueue));
}
return(DefaultRecoverabilityPolicy.Invoke(config, context));
}
public void UseNServiceBusPoisonMessageHandling(string errorQueue)
{
endpointConfiguration.Recoverability().CustomPolicy((c, e) =>
{
return(RecoverabilityAction.MoveToError(errorQueue));
});
moveFailedMessagesToError = true;
}
static RecoverabilityAction RecoverabilityPolicy(RecoverabilityConfig config, ErrorContext errorContext)
{
if (errorContext.ImmediateProcessingFailures <= MaxNumberOfImmediateRetries)
{
return(RecoverabilityAction.ImmediateRetry());
}
return(RecoverabilityAction.MoveToError(config.Failed.ErrorQueue));
}
private RecoverabilityAction CreateSubjectCustomRetryPolicy(RecoverabilityConfig config, ErrorContext context)
{
// In this custom policy, we are electing to move the PoisonedMessages to a different error queue for resolution, so they will use a different error queue to the standard one (so can be monitored easily).
// You could add whatever logic you liked here to put different messages in different queues.
return(config.Failed.UnrecoverableExceptionTypes.Count(exType => exType.IsInstanceOfType(context.Exception)) > 0
? RecoverabilityAction.MoveToError("customErrorQueue")
: DefaultRecoverabilityPolicy.Invoke(config, context));
}
public EndpointWithFailingHandler()
{
EndpointSetup <DefaultServer>((config, context) =>
{
config.Recoverability().CustomPolicy((c, ec) =>
RecoverabilityAction.MoveToError(Conventions.EndpointNamingConvention(typeof(ErrorSpy))));
config.SendFailedMessagesTo("error");
});
}
public RetryEndpoint()
{
EndpointSetup <DefaultServer>((configure, context) =>
{
var scenarioContext = (Context)context.ScenarioContext;
configure.EnableFeature <TimeoutManager>();
configure.Recoverability()
.CustomPolicy((cfg, errorContext) => RecoverabilityAction.MoveToError(cfg.Failed.ErrorQueue));
configure.Notifications.Errors.MessageSentToErrorQueue += (sender, message) => { scenarioContext.MessageSentToErrorQueue = true; };
});
}
public static RecoverabilityAction Invoke(ErrorContext errorContext, Func <IncomingMessage, Exception, int, TimeSpan> retryPolicy, RecoverabilityConfig config)
{
var currentRetry = errorContext.DelayedDeliveriesPerformed + 1;
var timeIncrease = retryPolicy(errorContext.Message, errorContext.Exception, currentRetry);
if (timeIncrease <= TimeSpan.MinValue)
{
return(RecoverabilityAction.MoveToError(config.Failed.ErrorQueue));
}
return(RecoverabilityAction.DelayedRetry(timeIncrease));
}
protected override void Setup(FeatureConfigurationContext context)
{
context.AddSatelliteReceiver(
name: "CustomSatellite",
transportAddress: "targetQueue",
runtimeSettings: PushRuntimeSettings.Default,
recoverabilityPolicy: (config, errorContext) =>
{
return(RecoverabilityAction.MoveToError(config.Failed.ErrorQueue));
},
onMessage: OnMessage);
}
public static RecoverabilityAction UserServiceRetryPolicyInvoke(RecoverabilityConfig config, ErrorContext context)
{
var action = DefaultRecoverabilityPolicy.Invoke(config, context);
if (!(action is DelayedRetry))
{
return(action);
}
if (context.Exception is NullReferenceException)
{
return(RecoverabilityAction.MoveToError(config.Failed.ErrorQueue));
}
return(RecoverabilityAction.DelayedRetry(TimeSpan.FromMinutes(3)));
}
RecoverabilityAction MyCustomRetryPolicy(RecoverabilityConfig config, ErrorContext context)
{
var action = DefaultRecoverabilityPolicy.Invoke(config, context);
if (!(action is DelayedRetry delayedRetryAction))
{
return(action);
}
if (context.Exception is MyBusinessException)
{
return(RecoverabilityAction.MoveToError(config.Failed.ErrorQueue));
}
// Override default delivery delay.
return(RecoverabilityAction.DelayedRetry(TimeSpan.FromSeconds(5)));
}
public void MoveToError(FeatureConfigurationContext context)
{
#region SatelliteRecoverability-ErrorQueue
context.AddSatelliteReceiver(
name: "CustomSatellite",
transportAddress: "targetQueue",
requiredTransportTransactionMode: TransportTransactionMode.TransactionScope,
runtimeSettings: PushRuntimeSettings.Default,
recoverabilityPolicy: (config, errorContext) =>
{
return(RecoverabilityAction.MoveToError(config.Failed.ErrorQueue));
},
onMessage: OnMessage);
#endregion
}
public Endpoint()
{
EndpointSetup <DefaultServer>((config, context) =>
{
var testContext = (Context)context.ScenarioContext;
config.Recoverability()
.Immediate(immediate => immediate.NumberOfRetries(MaxImmediateRetries))
.Delayed(delayed => delayed.NumberOfRetries(MaxDelayedRetries).TimeIncrease(DelayedRetryDelayIncrease))
.CustomPolicy((cfg, errorContext) =>
{
testContext.Configuration = cfg;
return(RecoverabilityAction.MoveToError(cfg.Failed.ErrorQueue));
});
});
}
protected override void Setup(FeatureConfigurationContext context)
{
var satelliteLogicalAddress = context.Settings.LogicalAddress().CreateQualifiedAddress("MySatellite");
var satelliteAddress = context.Settings.GetTransportAddress(satelliteLogicalAddress);
context.AddSatelliteReceiver("Test satellite", satelliteAddress, PushRuntimeSettings.Default,
(c, ec) => RecoverabilityAction.MoveToError(c.Failed.ErrorQueue),
(builder, messageContext) =>
{
var testContext = builder.Build <Context>();
testContext.MessageReceived = true;
testContext.TransportTransactionAddedToContext = ReferenceEquals(messageContext.Extensions.Get <TransportTransaction>(), messageContext.TransportTransaction);
return(Task.FromResult(true));
});
Address = satelliteAddress;
}
protected override void Setup(FeatureConfigurationContext context)
{
var settings = context.Settings;
tempQueue = "Samples.SagaMigration.Server.New";
mainQueue = settings.LocalAddress();
context.AddSatelliteReceiver(
name: "DrainTempQueueSatellite",
transportAddress: tempQueue,
runtimeSettings: new PushRuntimeSettings(maxConcurrency: 1),
recoverabilityPolicy: (config, errorContext) =>
{
return(RecoverabilityAction.MoveToError(config.Failed.ErrorQueue));
},
onMessage: OnMessage);
}
protected override void Setup(FeatureConfigurationContext context)
{
var satelliteLogicalAddress = context.Settings.LogicalAddress().CreateQualifiedAddress("MySatellite");
var satelliteAddress = context.Settings.GetTransportAddress(satelliteLogicalAddress);
#pragma warning disable 612, 618
context.AddSatelliteReceiver("Test satellite", satelliteAddress, TransportTransactionMode.None, PushRuntimeSettings.Default,
(c, ec) => RecoverabilityAction.MoveToError(c.Failed.ErrorQueue),
(builder, pushContext) =>
{
var testContext = builder.Build <Context>();
testContext.MessageReceived = true;
return(Task.FromResult(true));
});
#pragma warning restore 612, 618
Address = satelliteAddress;
}
public RecoverabilityAction WebhookRetryPolicy(RecoverabilityConfig config, ErrorContext context)
{
if (context.Exception is WebhookExceptionRetryPerPolicy)
{
// Check that the number of delayed deliveries does not exceed configurable webhook retry count
if (context.DelayedDeliveriesPerformed < ConfigHelper.WebhookRetryCount)
{
// Set delayed retry internal to that set by the configurable webhook retry internal
return(RecoverabilityAction.DelayedRetry(TimeSpan.FromSeconds(ConfigHelper.WebhookRetryInterval)));
}
// If the webhook could not be delivered within the specified number of retry attempts. Log error and send to ErrorQueue
string errorMsg = $"Failed to send webhook after {context.DelayedDeliveriesPerformed} attempts.";
Log.Error(errorMsg);
return(RecoverabilityAction.MoveToError(errorMsg));
}
// For all other exceptions, fall back to default policy
return(DefaultRecoverabilityPolicy.Invoke(config, context));
}
protected override void Setup(FeatureConfigurationContext context)
{
var settings = context.Settings;
var qualifiedAddress = settings.LogicalAddress()
.CreateQualifiedAddress("New");
tempQueue = settings.GetTransportAddress(qualifiedAddress);
mainQueue = settings.LocalAddress();
context.AddSatelliteReceiver(
name: "DrainTempQueueSatellite",
transportAddress: tempQueue,
runtimeSettings: new PushRuntimeSettings(maxConcurrency: 1),
recoverabilityPolicy: (config, errorContext) =>
{
return(RecoverabilityAction.MoveToError(config.Failed.ErrorQueue));
},
onMessage: OnMessage);
}
protected override void Setup(FeatureConfigurationContext context)
{
var endpointQueueName = context.Settings.EndpointQueueName();
var queueAddress = new QueueAddress(endpointQueueName, null, null, "MySatellite");
var satelliteAddress = context.Settings.Get <TransportDefinition>().ToTransportAddress(queueAddress);
context.AddSatelliteReceiver("Test satellite", satelliteAddress, PushRuntimeSettings.Default,
(c, ec) => RecoverabilityAction.MoveToError(c.Failed.ErrorQueue),
(builder, messageContext, cancellationToken) =>
{
var testContext = builder.GetService <Context>();
testContext.MessageReceived = true;
testContext.TransportTransactionAddedToContext = ReferenceEquals(messageContext.Extensions.Get <TransportTransaction>(), messageContext.TransportTransaction);
return(Task.FromResult(true));
});
Address = satelliteAddress;
}
RecoverabilityAction MyCustomRetryPolicy(RecoverabilityConfig config, ErrorContext context)
{
// early decisions and return before custom policy is invoked
// i.e. MyBusinessException should always go to customized error queue
if (context.Exception is MyBusinessException)
{
return(RecoverabilityAction.MoveToError("customErrorQueue"));
}
// override delayed retry decision for custom exception
// i.e. MyOtherBusinessException should do fixed backoff of 5 seconds
if (context.Exception is MyOtherBusinessException && context.DelayedDeliveriesPerformed <= config.Delayed.MaxNumberOfRetries)
{
return(RecoverabilityAction.DelayedRetry(TimeSpan.FromSeconds(5)));
}
// in all other cases No Immediate or Delayed Retries, go to default error queue
return(RecoverabilityAction.MoveToError(config.Failed.ErrorQueue));
}
public RecoverabilityAction Retry(RecoverabilityConfig recoverabilityConfig, ErrorContext errorContext)
{
if (errorContext.Exception is OptimisticConcurrencyException)
{
var ttl = errorContext.Message.Headers[
ApplicationConfiguration.Instance.GetValue <string>(
"ProductService:RetryPolicy:HeaderNames:UpdateStockInProduct")];
if (Convert.ToInt32(ttl) == 0)
{
return(RecoverabilityAction.MoveToError(recoverabilityConfig.Failed.ErrorQueue));
}
//TODO:Kudret--> Beklediğim bir senaryo, bu yüzden immediate olarak retry etsin
return(RecoverabilityAction.ImmediateRetry());
}
return(DefaultRecoverabilityPolicy.Invoke(recoverabilityConfig, errorContext));
}
public static RecoverabilityAction MyCustomRetryPolicy(RecoverabilityConfig config, ErrorContext context)
{
var action = DefaultRecoverabilityPolicy.Invoke(config, context);
// If not a retry then continue
if (!(action is DelayedRetry delayedRetryAction))
{
return(action);
}
// Check for concrete exception or business custom exception
if (context.Exception is InvalidCastException)
{
return(RecoverabilityAction.MoveToError(config.Failed.ErrorQueue));
}
// Override default delivery delay.
return(RecoverabilityAction.DelayedRetry(TimeSpan.FromSeconds(5)));
}
public Endpoint()
{
EndpointSetup <DefaultServer>((config, context) =>
{
var testContext = (Context)context.ScenarioContext;
config.Recoverability()
.CustomPolicy((cfg, errorContext) =>
{
testContext.ErrorContexts.Add(errorContext);
if (errorContext.DelayedDeliveriesPerformed >= 1)
{
return(RecoverabilityAction.MoveToError(cfg.Failed.ErrorQueue));
}
return(RecoverabilityAction.DelayedRetry(TimeSpan.FromMilliseconds(1)));
});
});
}
