public async Task SendPartialDataMessageAsync(byte[] bytes)
{
var packageSize = 32000;
var partialTemplate = new PartialDataMessage
{
PhotoId = Guid.NewGuid(),
TotalPartsCount = bytes.Length / packageSize + (bytes.Length % packageSize > 0 ? 1 : 0)
};
for (var i = 0; i < partialTemplate.TotalPartsCount; i++)
{
var packagesSent = i;
var dst = new byte[
i < partialTemplate.TotalPartsCount - 1
? packageSize
: bytes.Length - (packageSize * packagesSent)];
Array.Copy(bytes, packageSize * packagesSent, dst, 0, dst.Length);
var dataMessage = new PartialDataMessage
{
PhotoId = partialTemplate.PhotoId,
TotalPartsCount = partialTemplate.TotalPartsCount,
CurrentPartNumber = i,
Payload = dst
};
await _hubService.SendPartialDataMessageAsync(dataMessage);
}
}
public virtual void OnPartialDataMessageReceived(PartialDataMessage dataMessage)
{
_logger.LogInfo($"Partial data message received: {dataMessage}");
if (_partialMesages.ContainsKey(dataMessage.PhotoId))
{
_partialMesages[dataMessage.PhotoId].Add(dataMessage);
}
else
{
_partialMesages[dataMessage.PhotoId] = new List <PartialDataMessage>()
{
dataMessage
};
}
var list = _partialMesages[dataMessage.PhotoId];
_partialMesages[dataMessage.PhotoId] = list.OrderBy(x => x.CurrentPartNumber).ToList();
list = _partialMesages[dataMessage.PhotoId];
if (list.Count == dataMessage.TotalPartsCount)
{
var bytesCount = list.Sum(x => x.Payload.Length);
var bytes = new byte[bytesCount];
var writeFrom = 0;
foreach (var item in list)
{
item.Payload.CopyTo(bytes, writeFrom);
writeFrom += item.Payload.Length;
}
_partialMesages.Remove(dataMessage.PhotoId);
OnPartialDataMessageCompleted(bytes, dataMessage.PhotoId.ToString() + ".png");
}
}
public async Task SendPartialDataMessageAsync(PartialDataMessage dataMessage)
{
await _hubClient.SendAsync(nameof(SendPartialDataMessageAsync), dataMessage, _sessionName);
}
public override void OnPartialDataMessageReceived(PartialDataMessage dataMessage)
{
base.OnPartialDataMessageReceived(dataMessage);
}