public void Push()
{
ThrowExceptionIfNotConnected();
lock (mutex)
{
Log("Sending PUSH command.");
BinaryEncoder.SendCommand(stream, ConnectionCommand.PUSH);
using (Context context = new Context(config))
{
List <long> selfMessages = new List <long>();
var toSend = context.ToSendMessages.ToList();
PushCapsula capsula = new PushCapsula();
foreach (var message in toSend)
{
if (message.RecepientId == UserId)
{
selfMessages.Add((long)message.BlobMessagesId);
}
capsula.PushMessages.Add(new PushMessage()
{
RecepientId = (int)message.RecepientId,
Priority = (int)message.Priority
});
}
capsula.MessageToDeleteIds = context.BlobMessages
.Where(u => u.DoDelete == 1)
.Select(u => (long)u.PublicId).ToList();
#if (DEBUG)
Log($"Sending capsula with {toSend.Count} messages. {capsula.MessageToDeleteIds.Count} will be deleted.");
#endif
TextEncoder.SendJson(stream, capsula);
#if (DEBUG)
Log($"Sending message blobs.");
#endif
foreach (var message in toSend)
{
BinaryEncoder.SendBytes(stream, message.Blob);
}
#if (DEBUG)
Log($"Receiving PushResponse");
#endif
PushResponse response = TextEncoder.ReadJson <PushResponse>(stream);
var selfMessagesZip = selfMessages.Zip(response.MessageIds, (u, v) =>
new { PrivateId = u, PublicId = v });
foreach (var message in selfMessagesZip)
{
context.BlobMessages.Where(u => u.Id == message.PrivateId)
.SingleOrDefault().PublicId = message.PublicId;
}
#if (DEBUG)
Log("Saving new public ids.");
#endif
context.SaveChanges();
#if (DEBUG)
Log("Cleaning queue.");
#endif
context.Database.ExecuteSqlCommand("delete from TO_SEND_MESSAGES;");
context.Database.ExecuteSqlCommand("delete from BLOB_MESSAGES where DO_DELETE=1 and PUBLIC_ID<>null;;");
context.SaveChanges();
}
Log("Push have been done.");
}
}
private void Pull()
{
#if (DEBUG)
Log("Pulling started.");
Log("Receiving PushCapsula.");
#endif
PushCapsula capsula = TextEncoder.ReadJson <PushCapsula>(stream);
PushResponse response = new PushResponse()
{
MessageIds = new List <long>()
};
using (Context context = new Context(config))
{
#if (DEBUG)
Log($"Receiving and saving {capsula.PushMessages.Count} blobs.");
#endif
foreach (var pushMessage in capsula.PushMessages)
{
BlobMessages blobMessage = new BlobMessages()
{
Content = BinaryEncoder.ReceiveBytes(stream),
RecepientId = pushMessage.RecepientId,
SenderId = connectionInfo.UserId,
Priority = pushMessage.Priority
};
context.BlobMessages.Add(blobMessage);
context.SaveChanges();
if (pushMessage.RecepientId == connectionInfo.UserId)
{
response.MessageIds.Add(blobMessage.Id);
context.ClientsMessagesDownloaded.Add(new ClientsMessagesDownloaded()
{
BlobMessagesId = blobMessage.Id,
ClientsId = connectionInfo.ClientId
});
}
context.SaveChanges();
}
#if (DEBUG)
Log($"Deleting {capsula.MessageToDeleteIds.Count} blobs.");
#endif
foreach (var toDeleteId in capsula.MessageToDeleteIds)
{
var toDelete = context.BlobMessages
.Where(u => u.RecepientId == connectionInfo.UserId && u.Id == toDeleteId).SingleOrDefault();
if (toDelete != null)
{
context.BlobMessages.Remove(toDelete);
}
}
context.SaveChanges();
}
#if (DEBUG)
Log("Sending push response.");
#endif
TextEncoder.SendJson(stream, response);
#if (DEBUG)
Log("Pulling ended.");
#endif
}
