CloudQueueMessage PrepareCloudMessage(byte[] buffer)
{
if (buffer.Length < AzureMessageOverflows.CloudQueueLimit)
{
// write message to queue
return(new CloudQueueMessage(buffer));
}
// ok, we didn't fit, so create reference message
var referenceId = DateTimeOffset.UtcNow.ToString(DateFormatInBlobName) + "-" + Guid.NewGuid().ToString().ToLowerInvariant();
_cloudBlob.GetBlobReference(referenceId).UploadByteArray(buffer);
var reference = new EnvelopeReference(_cloudBlob.Uri.ToString(), referenceId);
var blob = AzureMessageOverflows.SaveEnvelopeReference(reference);
return(new CloudQueueMessage(blob));
}
MessageTransportContext DownloadPackage(CloudQueueMessage message)
{
var buffer = message.AsBytes;
EnvelopeReference reference;
if (AzureMessageOverflows.TryReadAsEnvelopeReference(buffer, out reference))
{
if (reference.StorageContainer != _cloudBlob.Uri.ToString())
{
throw new InvalidOperationException("Wrong container used!");
}
var blob = _cloudBlob.GetBlobReference(reference.StorageReference);
buffer = blob.DownloadByteArray();
}
return(new MessageTransportContext(message, buffer, _queueName));
}
