public async Task StopAsync()
{
if (Crawler == null)
{
throw new Exception("No Crawler task exists");
}
else if (Crawler.Status == TaskStatus.WaitingForActivation)
{
IsTerminated = true;
await Crawler.ContinueWith((x) =>
{
Crawler.Dispose();
Crawler = null;
});
}
else if (Crawler.Status == TaskStatus.RanToCompletion)
{
throw new Exception("Crawler task is already Completed");
}
}