async public Task <string> RetreiveInfo(object e)
{
// Get more info for the given item. This will run on it's own thread
// so that the main program can continue as usual (we won't hold anything up)
NotificationInfo n = (NotificationInfo)e;
var token = await RetreiveToken();
var service = new EWService(token, true);
service.SetImpersonation(ConnectingIdType.SmtpAddress, n.Mailbox);
service.Current.Url = n.Service.Url;
service.Current.TraceFlags = TraceFlags.All;
var ewsMoreInfoService = service.Current;
string sEvent = "";
if (n.Event is ItemEvent)
{
sEvent = n.Mailbox + ": Item " + (n.Event as ItemEvent).EventType.ToString() + ": " + MoreItemInfo(n.Event as ItemEvent, ewsMoreInfoService);
}
else
{
sEvent = n.Mailbox + ": Folder " + (n.Event as FolderEvent).EventType.ToString() + ": " + MoreFolderInfo(n.Event as FolderEvent, ewsMoreInfoService);
}
return(ShowEvent(sEvent));
}
/// <summary>
/// Poll localDB events and push service bus events to the Queue
/// </summary>
/// <param name="queueConnection"></param>
/// <returns></returns>
public async System.Threading.Tasks.Task SendQueueDatabaseChangesAsync(string queueConnection)
{
var sender = new MessageSender(queueConnection, SBQueueSyncDb);
var token = await RetreiveToken();
var EwsService = new EWService(token);
EwsService.SetImpersonation(ConnectingIdType.SmtpAddress, MailboxOwner);
// Poll the rooms to store locally
var roomlisting = EwsService.GetRoomListing();
using (var EwsDatabase = new EWSDbContext(EWSConstants.Config.Database))
{
foreach (var roomlist in roomlisting)
{
foreach (var room in roomlist.Value)
{
EntityRoomListRoom databaseRoom = null;
if (EwsDatabase.RoomListRoomEntities.Any(s => s.SmtpAddress == room.Address))
{
databaseRoom = await EwsDatabase.RoomListRoomEntities.FirstOrDefaultAsync(f => f.SmtpAddress == room.Address);
}
else
{
databaseRoom = new EntityRoomListRoom()
{
SmtpAddress = room.Address,
Identity = room.Address,
RoomList = roomlist.Key
};
EwsDatabase.RoomListRoomEntities.Add(databaseRoom);
}
}
}
var roomchanges = await EwsDatabase.SaveChangesAsync();
Trace.WriteLine($"Rooms {roomchanges} saved to database.");
}
var waitTimer = new TimeSpan(0, 5, 0);
while (!_cancel.IsCancellationRequested)
{
var milliseconds = (int)waitTimer.TotalMilliseconds;
// whatever you want to happen every 5 minutes
Trace.WriteLine($"SendQueueDatabaseChangesAsync({MailboxOwner}) starting at {DateTime.UtcNow.ToShortTimeString()}");
using (var EwsDatabase = new EWSDbContext(EWSConstants.Config.Database))
{
var i = 0;
var bookings = EwsDatabase.AppointmentEntities.Include(ictx => ictx.Room)
.Where(w => !w.ExistsInExchange || !w.SyncedWithExchange || (w.DeletedLocally && !w.SyncedWithExchange));
foreach (var booking in bookings)
{
Microsoft.Exchange.WebServices.Data.EventType eventType = Microsoft.Exchange.WebServices.Data.EventType.Deleted;
if (!booking.ExistsInExchange)
{
eventType = Microsoft.Exchange.WebServices.Data.EventType.Created;
}
else if (!booking.SyncedWithExchange)
{
eventType = Microsoft.Exchange.WebServices.Data.EventType.Modified;
}
if (string.IsNullOrEmpty(booking.BookingReference))
{
booking.BookingReference = $"Ref{booking.Id.ToString().PadLeft(6, '0')}";
}
var ewsbooking = new EWS.Common.Models.UpdatedBooking()
{
DatabaseId = booking.Id,
MailBoxOwnerEmail = booking.OrganizerSmtpAddress,
SiteMailBox = booking.Room.SmtpAddress,
Subject = booking.Subject,
Location = booking.Location,
StartUTC = booking.StartUTC,
EndUTC = booking.EndUTC,
ExchangeId = booking.BookingId,
ExchangeChangeKey = booking.BookingChangeKey,
BookingReference = booking.BookingReference,
ExchangeEvent = eventType
};
var message = new Message(Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(ewsbooking)))
{
ContentType = "application/json",
Label = SBMessageSyncDb,
MessageId = i.ToString()
};
await sender.SendAsync(message);
Trace.WriteLine($"{++i}. Sent: Id = {message.MessageId} w/ Subject:{booking.Subject}");
}
Trace.WriteLine($"Sent {i} messages");
}
Trace.WriteLine($"Sleeping at {DateTime.UtcNow} for {milliseconds} milliseconds...");
System.Threading.Thread.Sleep(milliseconds);
}
}
/// <summary>
/// Read Queue for Database Changes [preferably on a separate thread] and Store in Office 365
/// </summary>
/// <param name="queueConnection"></param>
/// <returns></returns>
public async System.Threading.Tasks.Task ReceiveQueueDatabaseChangesAsync(string queueConnection)
{
var token = await RetreiveToken();
var EwsService = new EWService(token);
var propertyIds = new List <PropertyDefinitionBase>()
{
ItemSchema.Subject,
AppointmentSchema.Location,
AppointmentSchema.Start,
AppointmentSchema.End,
EWSConstants.RefIdPropertyDef,
EWSConstants.DatabaseIdPropertyDef
};
var receiver = new MessageReceiver(queueConnection, SBQueueSyncDb, ReceiveMode.ReceiveAndDelete);
_cancel.Token.Register(() => receiver.CloseAsync());
// when the cancellation token if triggered.
while (!_cancel.Token.IsCancellationRequested)
{
// whatever you want to happen every 5 minutes
Trace.WriteLine($"ReceiveQueueDatabaseChangesAsync({MailboxOwner}) starting at {DateTime.UtcNow.ToShortTimeString()}");
// With the receiver set up, we then enter into a simple receive loop that terminates
using (var _context = new EWSDbContext(EWSConstants.Config.Database))
{
try
{
// ask for the next message "forever" or until the cancellation token is triggered
var message = await receiver.ReceiveAsync();
if (message != null)
{
if (message.Label != null &&
message.ContentType != null &&
message.Label.Equals(SBMessageSyncDb, StringComparison.InvariantCultureIgnoreCase) &&
message.ContentType.Equals("application/json", StringComparison.InvariantCultureIgnoreCase))
{
// service bus
// #TODO: Read bus events from database and write to O365
var booking = JsonConvert.DeserializeObject <EWS.Common.Models.UpdatedBooking>(Encoding.UTF8.GetString(message.Body));
Trace.WriteLine($"Msg received: {booking.SiteMailBox} - {booking.Subject}. Cancel status: {booking.ExchangeEvent.ToString("f")}");
var eventType = booking.CancelStatus;
var eventStatus = booking.ExchangeEvent;
var itemId = booking.ExchangeId;
var changeKey = booking.ExchangeChangeKey;
var appointmentMailbox = booking.SiteMailBox;
try
{
Appointment meeting = null;
if (!string.IsNullOrEmpty(itemId))
{
var exchangeId = new ItemId(itemId);
if (eventStatus == EventType.Deleted)
{
}
else
{
if (string.IsNullOrEmpty(booking.BookingReference))
{
booking.BookingReference = $"Ref{booking.DatabaseId.ToString().PadLeft(6, '0')}";
}
EwsService.SetImpersonation(ConnectingIdType.SmtpAddress, booking.MailBoxOwnerEmail);
var subAppointment = EwsService.GetAppointment(ConnectingIdType.SmtpAddress, booking.SiteMailBox, exchangeId, propertyIds);
var parentAppt = EwsService.GetParentAppointment(subAppointment, propertyIds);
meeting = parentAppt.Item;
meeting.Subject = booking.Subject;
meeting.Start = booking.StartUTC;
meeting.End = booking.EndUTC;
meeting.Location = booking.Location;
//meeting.ReminderDueBy = DateTime.Now;
meeting.SetExtendedProperty(EWSConstants.RefIdPropertyDef, booking.BookingReference);
meeting.SetExtendedProperty(EWSConstants.DatabaseIdPropertyDef, booking.DatabaseId);
meeting.Update(ConflictResolutionMode.AutoResolve, SendInvitationsOrCancellationsMode.SendOnlyToChanged);
// Verify that the appointment was created by using the appointment's item ID.
var item = Item.Bind(EwsService.Current, meeting.Id, new PropertySet(propertyIds));
Trace.WriteLine($"Appointment modified: {item.Subject} && ReserveRoomAsync({booking.Location}) completed");
if (item is Appointment)
{
Trace.WriteLine($"Item is Appointment");
}
}
}
else
{
if (string.IsNullOrEmpty(booking.BookingReference))
{
booking.BookingReference = $"Ref{booking.DatabaseId.ToString().PadLeft(6, '0')}";
}
EwsService.SetImpersonation(ConnectingIdType.SmtpAddress, booking.MailBoxOwnerEmail);
meeting = new Appointment(EwsService.Current);
meeting.Resources.Add(booking.SiteMailBox);
meeting.Subject = booking.Subject;
meeting.Start = booking.StartUTC;
meeting.End = booking.EndUTC;
meeting.Location = booking.Location;
//meeting.ReminderDueBy = DateTime.Now;
meeting.SetExtendedProperty(EWSConstants.RefIdPropertyDef, booking.BookingReference);
meeting.SetExtendedProperty(EWSConstants.DatabaseIdPropertyDef, booking.DatabaseId);
meeting.Save(SendInvitationsMode.SendOnlyToAll);
// Verify that the appointment was created by using the appointment's item ID.
var item = Item.Bind(EwsService.Current, meeting.Id, new PropertySet(propertyIds));
Trace.WriteLine($"Appointment created: {item.Subject} && ReserveRoomAsync({booking.Location}) completed");
if (item is Appointment)
{
Trace.WriteLine($"Item is Appointment");
}
}
// this should exists as this particular message was sent by the database
var dbAppointment = _context.AppointmentEntities.FirstOrDefault(a => a.Id == booking.DatabaseId);
if (dbAppointment != null)
{
dbAppointment.ExistsInExchange = true;
dbAppointment.SyncedWithExchange = true;
dbAppointment.ModifiedDate = DateTime.UtcNow;
if (meeting != null)
{
dbAppointment.BookingId = meeting.Id.UniqueId;
dbAppointment.BookingChangeKey = meeting.Id.ChangeKey;
}
else
{
dbAppointment.IsDeleted = true;
}
if (string.IsNullOrEmpty(dbAppointment.BookingReference) ||
!dbAppointment.BookingReference.Equals(booking.BookingReference))
{
dbAppointment.BookingReference = booking.BookingReference;
}
}
var appointmentsSaved = _context.SaveChanges();
Trace.WriteLine($"Saved {appointmentsSaved} rows");
}
catch (Exception dbex)
{
Trace.WriteLine($"Error occurred in Appointment creation or Database change {dbex}");
}
finally
{
//await receiver.CompleteAsync(message.SystemProperties.LockToken);
}
}
else
{
// purge / log it
await receiver.DeadLetterAsync(message.SystemProperties.LockToken);//, "ProcessingError", "Don't know what to do with this message");
}
}
}
catch (ServiceBusException e)
{
if (!e.IsTransient)
{
Trace.WriteLine(e.Message);
throw;
}
}
}
}
await receiver.CloseAsync();
}