/// <summary>
/// 单条删除邮件
/// </summary>
/// <param name="id">要删除的邮件ID</param>
public void Delete(int id)
{
//若能获取到则删除
EmailQueueEntry deleteEntry = emailQueueRepository.Get(id);
if (deleteEntry != null)
{
EventBus <EmailQueueEntry> .Instance().OnBefore(deleteEntry, new CommonEventArgs(EventOperationType.Instance().Delete()));
emailQueueRepository.Delete(deleteEntry);
EventBus <EmailQueueEntry> .Instance().OnAfter(deleteEntry, new CommonEventArgs(EventOperationType.Instance().Delete()));
}
}
/// <summary>
/// 将EmailQueueEntry 转换为 MailMessage
/// </summary>
public MailMessage AsMailMessage(EmailQueueEntry emailEntry)
{
MailMessage currentMessage = new MailMessage();
currentMessage.Priority = (MailPriority)emailEntry.Priority;
currentMessage.IsBodyHtml = emailEntry.IsBodyHtml;
String2MailAddressCollection(currentMessage.To, emailEntry.MailTo);
String2MailAddressCollection(currentMessage.CC, emailEntry.MailCc);
String2MailAddressCollection(currentMessage.Bcc, emailEntry.MailBcc);
currentMessage.From = new MailAddress(emailEntry.MailFrom);
currentMessage.Subject = emailEntry.Subject;
currentMessage.Body = emailEntry.Body;
return(currentMessage);
}
/// <summary>
/// 新建实体时使用
/// </summary>
public static EmailQueueEntry New()
{
EmailQueueEntry emailQueueEntry = new EmailQueueEntry()
{
MailFrom = string.Empty,
MailTo = string.Empty,
MailBcc = string.Empty,
MailCc = string.Empty,
Body = string.Empty,
Subject = string.Empty,
NextTryTime = DateTime.UtcNow
};
return(emailQueueEntry);
}
/// <summary>
/// 在队列中对发送失败的邮件更新下次发送时间及发送次数，并且删除超过最大发送次数的邮件
/// </summary>
/// <param name="ids">发送失败的邮件Id集合</param>
/// <param name="retryInterval">失败的Email过多少分钟再次重新发送</param>
/// <param name="maxNumberOfTries">尝试发送的最大次数，超过该次数将设置为失败状态</param>
public void SendFailed(IEnumerable <int> ids, int retryInterval, int maxNumberOfTries)
{
//根据当前的TryTime，若maxNumberOfTries <= TryTime+1 则：设置邮件状态IsFailed为：True
// 若maxNumberOfTries > TryTime+1 则：设置邮件NumberOfTries,根据retryInterval，修改NextTryTime
//操作步骤：
//1 根据ids获取所有的实体
//2 逐个进行判断，然后，编辑修改
//由于发送失败属于异常情况，暂不考虑性能问题
if (ids == null)
{
return;
}
foreach (int id in ids)
{
EmailQueueEntry emailQueueEntry = emailQueueRepository.Get(id);
if (emailQueueEntry == null)
{
continue;
}
else
{
//尝试次数大于等于最多尝试次数，设置为发送失败
if ((emailQueueEntry.NumberOfTries + 1) >= maxNumberOfTries)
{
emailQueueEntry.IsFailed = true;
}
else//修改尝试时间和下次尝试时间
{
emailQueueEntry.NumberOfTries = emailQueueEntry.NumberOfTries + 1;
emailQueueEntry.NextTryTime = DateTime.UtcNow.AddMinutes(retryInterval);
}
//更新到数据库
emailQueueRepository.Update(emailQueueEntry);
}
}
}
public MailMessage AsMailMessage(EmailQueueEntry emailEntry)
{
MailMessage mailMessage = new MailMessage();
mailMessage.Priority = (MailPriority)emailEntry.Priority;
mailMessage.IsBodyHtml = emailEntry.IsBodyHtml;
this.String2MailAddressCollection(mailMessage.To, emailEntry.MailTo);
this.String2MailAddressCollection(mailMessage.CC, emailEntry.MailCc);
this.String2MailAddressCollection(mailMessage.Bcc, emailEntry.MailBcc);
mailMessage.From = new MailAddress(emailEntry.MailFrom);
mailMessage.Subject = emailEntry.Subject;
mailMessage.Body = emailEntry.Body;
return mailMessage;
}
