private void RunTask()
{
Letter letter = new Letter(this.letterGuid);
if (letter.LetterGuid == Guid.Empty)
{
log.Error("LetterSendTask letter not found so ending.");
ReportStatus();
return;
}
if (letter.SendCompleteUtc > DateTime.MinValue)
{
log.Error("LetterSendTask SendCompleteUtc already set so ending.");
ReportStatus();
return;
}
if (letter.SendClickedUtc == DateTime.MinValue)
{
log.Error("LetterSendTask SendClickedUtc has an invalid value so ending.");
ReportStatus();
return;
}
LetterInfo letterInfo = new LetterInfo(letter.LetterInfoGuid);
SubscriberRepository subscriptions = new SubscriberRepository();
if (
(ConfigurationManager.AppSettings["NewsletterTestMode"] != null) &&
(ConfigurationManager.AppSettings["NewsletterTestMode"] == "true")
)
{
testMode = true;
log.Info("using NewsletterTestMode=true in config so no real emails will be sent for newsletter " + letterInfo.Title);
}
// TODO: this could be a very large recordset if the list is very large
// might be better to get a page at a time instead of all at once.
List <LetterSubscriber> subscribers
= subscriptions.GetSubscribersNotSentYet(
letter.LetterGuid,
letter.LetterInfoGuid);
nextStatusUpdateTime = DateTime.UtcNow.AddSeconds(updateFrequency);
totalSubscribersToSend = subscribers.Count;
if ((totalSubscribersToSend > 0) && (letter.SendStartedUtc == DateTime.MinValue))
{
letter.TrackSendStarted();
}
if (totalSubscribersToSend < 100)
{
testSleepMilliseconds = 3000;
}
if (totalSubscribersToSend > 300)
{
testSleepMilliseconds = 500;
}
if (totalSubscribersToSend > 500)
{
testSleepMilliseconds = 100;
}
SmtpSettings smtpSettings = new SmtpSettings();
smtpSettings.Password = password;
smtpSettings.Port = port;
smtpSettings.PreferredEncoding = preferredEncoding;
smtpSettings.RequiresAuthentication = requiresAuthentication;
smtpSettings.UseSsl = useSsl;
smtpSettings.User = user;
smtpSettings.Server = server;
foreach (LetterSubscriber subscriber in subscribers)
{
SendLetter(smtpSettings, letterInfo, letter, subscriber);
subscribersSentSoFar += 1;
if (DateTime.UtcNow > nextStatusUpdateTime)
{
ReportStatus();
}
}
ReportStatus();
}