private static WindowLimiter GetLimiter()
{
const int maxAllowed = 1; // number of items to process in the time window
const int windowSeconds = 1;
const Constants.MessageProcessInstruction deniedInstruction = Constants.MessageProcessInstruction.RequeueMessageWithDelay;
return(new WindowLimiter(maxAllowed, windowSeconds, deniedInstruction));
}
/// <summary>
/// Limits the number of items to be processed. It allows processing 'maxAllowed' items every 'windowSeconds' seconds and if that
/// limit is exceeded then the processing instruction that should be considered is 'deniedProcessInstruction'
/// </summary>
/// <param name="maxAllowed">max items allowed</param>
/// <param name="windowSeconds"></param>
/// <param name="deniedProcessInstruction"></param>
public WindowLimiter(int maxAllowed, int windowSeconds,
Constants.MessageProcessInstruction deniedProcessInstruction)
{
if (maxAllowed <= 0 || windowSeconds <= 0)
{
throw new ArgumentException("Invalid parameters; cannot be 0");
}
MaxAllowed = maxAllowed;
WindowSeconds = windowSeconds;
DeniedProcessInstruction = deniedProcessInstruction;
Start = DateTime.Now;
End = Start.AddSeconds(windowSeconds);
}
public LimiterHelper(Constants.MessageProcessInstruction deniedProcessInstruction)
{
DeniedProcessInstruction = deniedProcessInstruction;
TotalCalls = 0;
}
public MessageProcessInstruction(Constants.MessageProcessInstruction value, string additionalInfo = null)
{
this.Value = value;
this.AdditionalInfo = additionalInfo;
}
