/// <summary>
/// Handle retry limit exceeded
/// </summary>
/// <param name="data"></param>
public void HandleRetryLimitExceeded(DispatchData data)
{
// handle retry limit only when we get exception or fault message
Contract.Requires(data.Exception != null ||
(data.ReplyMessage != null && data.ReplyMessage.IsFault == true),
"Retry Limit Exceeded when there is exception or fault message");
int retryLimit = this.sharedData.Config.LoadBalancing.MessageResendLimit;
BrokerTracing.EtwTrace.LogBackendResponseReceivedRetryLimitExceed(data.SessionId, data.TaskId, data.MessageId, retryLimit);
// Initialize retry error and fault reason
RetryOperationError retryError;
FaultReason faultReason;
if (data.Exception != null)
{
// generate fault exception from original exception
retryError = new RetryOperationError(data.Exception.Message);
string exceptionFaultReason = String.Format(SR.RetryLimitExceeded, retryLimit + 1, data.Exception.Message);
faultReason = new FaultReason(exceptionFaultReason);
}
else
{
#region Debug Failure Test
SimulateFailure.FailOperation(1);
#endregion
// generate fault exception from original reply
MessageFault messageFault = MessageFault.CreateFault(data.ReplyMessage, Constant.MaxBufferSize);
retryError = messageFault.GetDetail <RetryOperationError>();
faultReason = messageFault.Reason;
// close original reply message
data.ReplyMessage.Close();
}
retryError.RetryCount = retryLimit + 1;
retryError.LastFailedServiceId = data.TaskId;
// Construct the new exception
FaultException <RetryOperationError> faultException = new FaultException <RetryOperationError>(retryError, faultReason, Constant.RetryLimitExceedFaultCode, RetryOperationError.Action);
data.Exception = faultException;
this.responseQueueAdapter.PutResponseBack(data);
}
/// <summary>
/// Try to parse broker exception from the message
/// </summary>
/// <param name="messageFault">indicating the message fault</param>
/// <param name="action">indicating the action</param>
/// <param name="brokerException">output the broker exception</param>
/// <returns>returns a value indicating whether successfully parsed out broker exception</returns>
private static bool TryParseBrokerException(MessageFault messageFault, string action, out Exception brokerException)
{
switch (action)
{
case AuthenticationFailure.Action:
AuthenticationFailure af = messageFault.GetDetail <AuthenticationFailure>();
brokerException = new AuthenticationException(String.Format(SR.Broker_AuthenticationFailure, af.UserName));
return(true);
case RetryOperationError.Action:
RetryOperationError rle = messageFault.GetDetail <RetryOperationError>();
brokerException = new RetryOperationException(String.Format(SR.Broker_RetryLimitExceeded, rle.RetryCount, rle.Reason), rle.Reason);
return(true);
case SessionFault.Action:
SessionFault fault = messageFault.GetDetail <SessionFault>();
brokerException = Utility.TranslateFaultException(new FaultException <SessionFault>(fault, messageFault.Reason));
return(true);
default:
brokerException = null;
return(false);
}
}
