private void CreateRemoteBlob()
{
var baseBlob = this.blobObjectFactory.Create(baseVhdBlobUri);
if (!baseBlob.Exists())
{
throw new InvalidOperationException(String.Format("Base image to patch doesn't exist in blob storage: {0}", baseVhdBlobUri.Uri));
}
var blobVhdFooter = baseBlob.GetVhdFooter();
long blobSize;
VhdFilePath localBaseVhdPath;
IEnumerable <Guid> childrenVhdIds;
using (var vhdFile = new VhdFileFactory().Create(localVhd.FullName))
{
localBaseVhdPath = vhdFile.GetFilePathBy(blobVhdFooter.UniqueId);
childrenVhdIds = vhdFile.GetChildrenIds(blobVhdFooter.UniqueId).ToArray();
blobSize = vhdFile.Footer.CurrentSize;
}
FileMetaData fileMetaData = GetFileMetaData(baseBlob, localBaseVhdPath);
var md5Hash = baseBlob.GetBlobMd5Hash();
if (!md5Hash.SequenceEqual(fileMetaData.MD5Hash))
{
var message = String.Format("Patching cannot proceed, MD5 hash of base image in blob storage ({0}) and base VHD file ({1}) does not match ",
baseBlob.Uri,
localBaseVhdPath);
throw new InvalidOperationException(message);
}
Program.SyncOutput.MessageCreatingNewPageBlob(blobSize);
CopyBaseImageToDestination();
using (var vds = new VirtualDiskStream(localVhd.FullName))
{
var streamExtents = vds.Extents.ToArray();
var enumerable = streamExtents.Where(e => childrenVhdIds.Contains(e.Owner)).ToArray();
foreach (var streamExtent in enumerable)
{
var indexRange = streamExtent.Range;
destinationBlob.ClearPagesAsync(indexRange.StartIndex, indexRange.Length)
.ConfigureAwait(false).GetAwaiter().GetResult();
}
}
using (var bmds = new BlobMetaDataScope(destinationBlob))
{
bmds.Current.RemoveBlobMd5Hash();
bmds.Current.SetUploadMetaData(OperationMetaData);
bmds.Complete();
}
}
private void CreateRemoteBlob()
{
var baseBlob = this.blobObjectFactory.Create(baseVhdBlobUri);
if (!baseBlob.Exists())
{
throw new InvalidOperationException(String.Format("Base image to patch doesn't exist in blob storage: {0}", baseVhdBlobUri.Uri));
}
var blobVhdFooter = baseBlob.GetVhdFooter();
long blobSize;
VhdFilePath localBaseVhdPath;
IEnumerable<Guid> childrenVhdIds;
using (var vhdFile = new VhdFileFactory().Create(localVhd.FullName))
{
localBaseVhdPath = vhdFile.GetFilePathBy(blobVhdFooter.UniqueId);
childrenVhdIds = vhdFile.GetChildrenIds(blobVhdFooter.UniqueId).ToArray();
blobSize = vhdFile.Footer.VirtualSize;
}
FileMetaData fileMetaData = GetFileMetaData(baseBlob, localBaseVhdPath);
var md5Hash = baseBlob.GetBlobMd5Hash();
if (!md5Hash.SequenceEqual(fileMetaData.MD5Hash))
{
var message = String.Format("Patching cannot proceed, MD5 hash of base image in blob storage ({0}) and base VHD file ({1}) does not match ",
baseBlob.Uri,
localBaseVhdPath);
throw new InvalidOperationException(message);
}
Program.SyncOutput.MessageCreatingNewPageBlob(blobSize);
CopyBaseImageToDestination();
using (var vds = new VirtualDiskStream(localVhd.FullName))
{
var streamExtents = vds.Extents.ToArray();
var enumerable = streamExtents.Where(e => childrenVhdIds.Contains(e.Owner)).ToArray();
foreach (var streamExtent in enumerable)
{
var indexRange = streamExtent.Range;
destinationBlob.ClearPages(indexRange.StartIndex, indexRange.Length);
}
}
using (var bmds = new BlobMetaDataScope(destinationBlob))
{
bmds.Current.RemoveBlobMd5Hash();
bmds.Current.SetUploadMetaData(OperationMetaData);
bmds.Complete();
}
}
