public void SendCampaign(int campaignId)
{
List <SentItem> sentItems = new List <SentItem>();
using (var db = new PostessDB())
{
var campaign = db.Campaigns.Find(campaignId);
// Ensure the campaign has been charged for
if (campaign.CampaignStateId != CampaignState.ChargedSuccessful)
{
throw new CampaignNotChargedException();
}
// This will need to be optimised for large campaigns with huge lists as it can't be handled in memory
// Also optimise to not include items already sent, in processing, or failed to send
sentItems = campaign.SentItems.ToList();
campaign.CampaignStateId = CampaignState.DeliveryInProgress;
campaign.DateProcessingStarted = DateTime.Now;
db.SaveChanges();
}
try
{
// For each sentItem in the campaign, deliver it to the underlying service
foreach (var sentItem in sentItems)
{
// Delivery item to underlying service
this.SendItem(sentItem);
}
}
catch (Exception e)
{
// Handle uncaught exception by setting delivery status to failed
using (var db = new PostessDB())
{
var campaign = db.Campaigns.Find(campaignId);
campaign.CampaignStateId = CampaignState.DeliveryFailed;
db.SaveChanges();
}
throw e;
}
// Update status to success
using (var db = new PostessDB())
{
var campaign = db.Campaigns.Find(campaignId);
campaign.DateProcessingCompleted = DateTime.Now;
campaign.CampaignStateId = CampaignState.DeliveryComplete;
db.SaveChanges();
}
}
public AuthRepository()
{
this.ctx = new PostessDB();
this.userManager = new UserManager <ApplicationUser>(new UserStore <ApplicationUser>(this.ctx));
}
/// <summary>
/// Method to send an item and control the state
/// </summary>
/// <param name="sentItem"></param>
private void SendItem(SentItem sentItem)
{
// Get the service necessary for the given country
IPostService postService = this.GetServiceForCountry(sentItem.RecipientProfile.CountryId);
// populate the item into a sendItem
IPostItem postItem = this.PopulateSendItem(sentItem);
// Validate the item can be sent
string outputMessage;
if (postService.ValidatePostItem(postItem, out outputMessage))
{
// Update to sending item status to SendingMail
using (var db = new PostessDB())
using (TransactionScope scope = new TransactionScope(TransactionScopeOption.Required, new TransactionOptions {
IsolationLevel = IsolationLevel.RepeatableRead
}))
{
var sentItemDB = db.SentItems.Find(sentItem.Id);
// Do not attempt to send if the item is not in a default state
if (sentItemDB.SentItemStateId == SentItemState.SendingMail ||
sentItemDB.SentItemStateId == SentItemState.MailSent ||
sentItemDB.SentItemStateId == SentItemState.MailSendingError
)
{
return;
}
sentItemDB.SentItemStateId = SentItemState.SendingMail;
db.SaveChanges();
}
try
{
postService.SendPost(postItem);
}
catch (Exception e)
{
// Update sending item status to MailSendingError
using (var db = new PostessDB())
{
// Mail sending error
var sentItemDB = db.SentItems.Find(sentItem.Id);
sentItemDB.SentItemStateId = SentItemState.MailSendingError;
db.SaveChanges();
}
}
// Update sending item status to SendingSuccess
using (var db = new PostessDB())
{
var sentItemDB = db.SentItems.Find(sentItem.Id);
sentItemDB.SentItemStateId = SentItemState.MailSent;
db.SaveChanges();
}
}
else
{
// Process that this item could not be sent because of outputMessage
}
}
