public void Start(DbMailTask mailTaskTemplate, DbRecipient[] recipients)
{
if (_trafficController == null)
{
_trafficController = new TrafficController();
}
_recipients = recipients;
_status.TotalCount = _recipients.Length;
_status.Succeeded = 0;
_status.Failed = 0;
for (int recipientIndex = 0; recipientIndex < _recipients.Length; recipientIndex++)
{
var mailTask = mailTaskTemplate.Copy();
while (!_submitMessage(recipientIndex, mailTask, _recipients[recipientIndex]))
{
Thread.Sleep(10);
}
}
while (_threadCounter > 0 || !_status.Completed)
{
Thread.Sleep(50);
}
}
// GET: DbMailTasks/Create
public ActionResult Create()
{
ViewBag.RecipientCount = db.DbRecipients.Count();
var mailTask = new DbMailTask();
mailTask.Subject = "Test email from ASP.NET MVC";
mailTask.IsAuthenticationRequired = false;
var body = new StringBuilder();
body.Append("This sample demonstrates how to pickup recipient from database and send emails from ASP.NET MVC with thread pool.\r\n");
body.Append("Curren task id is: [$taskid]\r\n\r\n");
body.Append("From: [$sender]\r\n");
body.Append("To: [$rcpt]\r\n");
body.Append("Subject: [$subject]\r\n\r\n");
body.Append("Above sender, rcpt, subject values will be replaced by actual value based on each recipient.\r\n\r\n");
body.Append("If no sever address was specified, the email will be delivered to the recipient's server directly.\r\n");
body.Append("However, it is not recommended, because most email providers would reject your message due to anti-spam policy.\r\n");
mailTask.TextBody = body.ToString();
ViewBag.Port = DropDownListData.PortList(mailTask.Port);
ViewBag.Protocol = DropDownListData.ProtocolList(mailTask.Protocol);
ViewBag.IsSyncSendSucceeded = false;
ViewBag.SyncSendStatus = string.Empty;
return(View(mailTask));
}
public ActionResult DeleteConfirmed(int id)
{
DbMailTask dbMailTask = db.DbMailTasks.Find(id);
if (dbMailTask.Status == DbMailTaskStatus.Completed || dbMailTask.Status == DbMailTaskStatus.Terminated)
{
db.DbMailTasks.Remove(dbMailTask);
db.Database.ExecuteSqlCommand("DELETE FROM DbRecipientResults WHERE TaskId = {0}", id);
db.SaveChanges();
}
return(RedirectToAction("Index", "DbRecipients"));
}
// GET: DbMailTasks/Delete/5
public ActionResult Delete(int?id)
{
if (id == null)
{
return(new HttpStatusCodeResult(HttpStatusCode.BadRequest));
}
DbMailTask dbMailTask = db.DbMailTasks.Find(id);
if (dbMailTask == null)
{
return(HttpNotFound());
}
return(View(dbMailTask));
}
bool _submitMessage(int recipientIndex, DbMailTask mailTask, DbRecipient recipient)
{
if (!_trafficController.PrepareIncreaseConnection())
{
_trafficController.Rollback();
return(false);
}
if (!_trafficController.PrepareIncreaseMessage())
{
_trafficController.Rollback();
return(false);
}
SendMailThreadState state = new SendMailThreadState();
state.Server = mailTask.BuildServer();
state.Mail = mailTask.BuildMail();
state.DbTaskId = mailTask.TaskId;
string recipientName = string.IsNullOrWhiteSpace(recipient.Name) ? string.Empty : recipient.Name;
string recipientAddress = string.IsNullOrWhiteSpace(recipient.Address) ? string.Empty : recipient.Address;
state.Mail.To.Add(new MailAddress(recipientName, recipientAddress));
state.Mail.TextBody = state.Mail.TextBody.Replace("[$sender]", state.Mail.From.ToString());
state.Mail.TextBody = state.Mail.TextBody.Replace("[$rcpt]", state.Mail.To.ToString());
state.Mail.TextBody = state.Mail.TextBody.Replace("[$subject]", state.Mail.Subject.ToString());
state.Mail.TextBody = state.Mail.TextBody.Replace("[$taskid]", mailTask.TaskId.ToString());
// even you can add different attachment for different recipient here.
state.RecipientIndex = recipientIndex;
try
{
Interlocked.Increment(ref _threadCounter);
ThreadPool.QueueUserWorkItem(this._sendThreadProc, state);
_trafficController.Commit();
return(true);
}
catch
{
Interlocked.Decrement(ref _threadCounter);
_trafficController.Rollback();
return(false);
}
}
public ActionResult Create(DbMailTask dbMailTask)
{
if (ModelState.IsValid)
{
if (string.IsNullOrWhiteSpace(dbMailTask.TaskName))
{
dbMailTask.TaskName = "Unnamed task";
}
dbMailTask.CreationTime = DateTime.Now;
dbMailTask.LastWriteTime = DateTime.Now;
db.DbMailTasks.Add(dbMailTask);
db.SaveChanges();
return(RedirectToAction("Index", "DbRecipients"));
}
return(View(dbMailTask));
}
static void _processTask(WebProject1Context db, DbMailTask mailTask)
{
var threadPool = new DbSendThreadPool();
threadPool.UpdateResult = _updateResult;
_threadPools.Add(mailTask.TaskId, threadPool);
var recipients = db.DbRecipients.ToArray();
mailTask.TotalCount = recipients.Length;
mailTask.Status = DbMailTaskStatus.Running;
db.Entry(mailTask).State = EntityState.Modified;
db.SaveChanges();
Task.Run(() =>
{
threadPool.Start(mailTask, recipients);
});
}
