private List<UploadedBlock> UploadBytes(RemainingBytes remainingBytes, string localFilePath, string containerName, string blobName, bool testMode = false)
{
var uploadedBlockList = new List<UploadedBlock>();
try
{
CloudBlockBlob blob = null;
if (!testMode)
{
var client = AzureHelper.GetCloudBlobClient();
var container = client.GetContainerReference(containerName);
container.CreateIfNotExists();
blob = container.GetBlockBlobReference(blobName);
}
var blockCount =
Math.Round((double)(remainingBytes.EndOffset - remainingBytes.BeginOffset + 1) /
(double)ConfigHelper.SignatureSize, MidpointRounding.AwayFromZero);
using (var stream = new FileStream(localFilePath, FileMode.Open))
{
for (var offset = remainingBytes.BeginOffset; offset <= remainingBytes.EndOffset; )
{
var sizeToRead = offset + ConfigHelper.SignatureSize <= remainingBytes.EndOffset
? ConfigHelper.SignatureSize
: remainingBytes.EndOffset - offset + 1;
if (sizeToRead == 0)
{
var error = "";
}
// seek to the offset we need. Dont forget remaining bytes may be bigger than the signature size
// we want to deal with.
stream.Seek(offset, SeekOrigin.Begin);
var bytesToRead = new byte[sizeToRead];
var bytesRead = stream.Read(bytesToRead, 0, (int)sizeToRead);
var sig = CommonOps.GenerateBlockSig(bytesToRead, offset, (int)sizeToRead, 0);
var blockId = Convert.ToBase64String(sig.MD5Signature);
var isDupe = uploadedBlockList.Any(ub => ub.BlockId == blockId);
if (!testMode)
{
// only upload bytes IF another block hasn't already covered it.
// unlikely situation I think, but possibly going to happen for
// VM images etc where there is lots of "blank space".
if (!isDupe)
{
// yes, putting into memory stream is probably a waste here.
using (var ms = new MemoryStream(bytesToRead))
{
var options = new BlobRequestOptions() { ServerTimeout = new TimeSpan(0, 90, 0) };
blob.PutBlock(blockId, ms, null, null, options);
}
}
}
// store the block id that is associated with this byte range.
uploadedBlockList.Add(new UploadedBlock()
{
BlockId = blockId,
Offset = offset,
Sig = sig,
Size = bytesRead,
IsNew = true,
IsDuplicate = isDupe
});
offset += sizeToRead;
}
}
}
catch (ArgumentException ex)
{
// probably bad container.
Console.WriteLine("Argument Exception " + ex.ToString());
}
finally
{
}
return uploadedBlockList;
}
