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($"Moving message from {tempQueue} to {mainQueue}");
var transportOperations = new TransportOperations(outgoingOperation);
return(messageDispatcher.Dispatch(transportOperations, messageContext.TransportTransaction, messageContext.Context));
});
#endregion
}
static async Task <ValidationException> Send(object message, [CallerMemberName] string key = null)
{
var configuration = new EndpointConfiguration("DataAnnotationsIncoming" + key);
configuration.UseTransport <LearningTransport>();
configuration.PurgeOnStartup(true);
configuration.DisableFeature <TimeoutManager>();
var resetEvent = new ManualResetEvent(false);
configuration.RegisterComponents(components => components.RegisterSingleton(resetEvent));
ValidationException exception = null;
var recoverability = configuration.Recoverability();
recoverability.CustomPolicy(
(config, context) =>
{
exception = (ValidationException)context.Exception;
resetEvent.Set();
return(RecoverabilityAction.MoveToError("error"));
});
configuration.UseDataAnnotationsValidation(outgoing: false);
var endpoint = await Endpoint.Start(configuration);
await endpoint.SendLocal(message);
if (!resetEvent.WaitOne(TimeSpan.FromSeconds(2)))
{
throw new Exception("No Set received.");
}
return(exception);
}
private static RecoverabilityAction CustomerExceptionPolicy(RecoverabilityConfig config, ErrorContext context)
{
var unrecover = context.Exception is UnrecoverableException;
var customer = context.Exception is CustomerException;
var immediateIdx = context.ImmediateProcessingFailures;
var immediateMax = config.Immediate.MaxNumberOfRetries;
var delayIdx = context.DelayedDeliveriesPerformed;
var delayMax = config.Delayed.MaxNumberOfRetries;
if (!unrecover && immediateIdx < immediateMax)
{
Console.WriteLine($"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));
});
}
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 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));
}
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)));
}
void Simple(EndpointConfiguration endpointConfiguration, IEndpointInstance endpoint, ILog log)
{
#region Callbacks-Recoverability
endpointConfiguration.Recoverability().CustomPolicy((config, context) =>
{
if (context.Exception is InvalidOperationException invalidOperationException &&
invalidOperationException.Message.StartsWith("No handlers could be found", StringComparison.OrdinalIgnoreCase))
{
return(RecoverabilityAction.Discard("Callback no longer active"));
}
return(DefaultRecoverabilityPolicy.Invoke(config, context));
});
#endregion
}
static RecoverabilityAction MyCustomRetryPolicy(RecoverabilityConfig config, ErrorContext context)
{
var numberOfRetries = context.DelayedDeliveriesPerformed;
var exceptionInstance = context.Exception;
// call the default recoverability of default behavior is desired
var action = DefaultRecoverabilityPolicy.Invoke(config, context);
if (action is DelayedRetry delayedRetryAction)
{
// perform some logic and decide when to do delayed retries
return(RecoverabilityAction.DelayedRetry(TimeSpan.FromSeconds(5)));
}
return(action);
}
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);
}
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 void DelayedRetry(FeatureConfigurationContext context)
{
#region SatelliteRecoverability-DelayedRetry
context.AddSatelliteReceiver(
name: "CustomSatellite",
transportAddress: "targetQueue",
requiredTransportTransactionMode: TransportTransactionMode.TransactionScope,
runtimeSettings: PushRuntimeSettings.Default,
recoverabilityPolicy: (config, errorContext) =>
{
return(RecoverabilityAction.DelayedRetry(
timeSpan: TimeSpan.FromMinutes(2)));
},
onMessage: OnMessage);
#endregion
}
public static Func<RecoverabilityConfig, ErrorContext, RecoverabilityAction> Return(RecoverabilityAction[] actions)
{
return new RetryPolicy(actions).Invoke;
}
RetryPolicy(RecoverabilityAction[] actions)
{
this.actions = new Queue<RecoverabilityAction>(actions);
}