public static VhdFilePath GetFilePathBy(this VhdFile vhdFile, Guid uniqueId)
{
VhdFilePath result = null;
string baseVhdPath = String.Empty;
var newBlocksOwners = new List <Guid> {
Guid.Empty
};
var current = vhdFile;
while (current != null && current.Footer.UniqueId != uniqueId)
{
newBlocksOwners.Add(current.Footer.UniqueId);
if (current.Parent != null)
{
result = new VhdFilePath(current.Header.GetAbsoluteParentPath(),
current.Header.GetRelativeParentPath());
}
current = current.Parent;
}
if (result == null)
{
string message = String.Format("There is no parent VHD file with with the id '{0}'", uniqueId);
throw new InvalidOperationException(message);
}
return(result);
}
private FileMetaData GetFileMetaData(CloudPageBlob baseBlob, VhdFilePath localBaseVhdPath)
{
FileMetaData fileMetaData;
if (File.Exists(localBaseVhdPath.AbsolutePath))
{
fileMetaData = FileMetaData.Create(localBaseVhdPath.AbsolutePath);
}
else
{
var filePath = Path.Combine(localVhd.Directory.FullName, localBaseVhdPath.RelativePath);
if (File.Exists(filePath))
{
fileMetaData = FileMetaData.Create(filePath);
}
else
{
var message = String.Format("Cannot find the local base image for '{0}' in neither of the locations '{1}', '{2}'.",
baseBlob.Uri,
localBaseVhdPath.AbsolutePath,
localBaseVhdPath.RelativePath);
throw new InvalidOperationException(message);
}
}
return(fileMetaData);
}
