public RetryHandler(int maxRetries, double waitToRetryInSeconds, double maxWaitToRetryInSeconds, BackOffStrategy backOffStrategy)
{
MaxRetries = maxRetries;
WaitToRetryInSeconds = waitToRetryInSeconds;
MaxWaitToRetryInSeconds = maxWaitToRetryInSeconds;
CurrentBackOffStrategy = backOffStrategy;
Validate();
}
// Retry a specific codeblock wrapped in an Action delegate
public void DoActionWithRetry(Action action, int maxRetries, int waitBetweenRetrySec, BackOffStrategy retryStrategy)
{
if (action == null)
{
throw new ArgumentNullException("No action specified");
}
int retryCount = 0;
while (retryCount < maxRetries)
{
try
{
action();
break;
}
catch (Exception ex)
{
if (retryCount == maxRetries - 1)
{
DisplayError(ex);
throw ex;
}
else
{
//Maybe Log the number of retries
DisplayError(ex);
TimeSpan sleepTime;
if (retryStrategy == BackOffStrategy.Linear)
{
//Wait time is Fixed
sleepTime = TimeSpan.FromSeconds(waitBetweenRetrySec);
}
else
{
//Wait time increases exponentially
sleepTime = TimeSpan.FromSeconds(Math.Pow(waitBetweenRetrySec, retryCount));
}
Thread.Sleep(sleepTime);
retryCount++;
}
}
}
}