/// <summary>
/// Begins an operation to start copying source block blob's contents, properties, and metadata to the destination block blob.
/// </summary>
/// <param name="sourceBlobName">Name of the source blob.</param>
/// <param name="destBlobName">Name of the destination blob.</param>
/// <param name="destContainer">The destination container.</param>
/// <returns>The copy ID associated with the copy operation; empty if source blob does not exist.</returns>
public string StartCopyBlockBlob(string sourceBlobName, string destBlobName, BlobContainer destContainer = null)
{
sourceBlobName.ValidateBlobName();
destBlobName.ValidateBlobName();
var sourceBlob = this._cloudBlobContainer.GetBlockBlobReference(sourceBlobName);
if (sourceBlob.Exists())
{
var destBlob = (destContainer ?? this).GetBlockBlob(destBlobName);
return(destBlob.StartCopy(sourceBlob));
}
else
{
return(string.Empty);
}
}
/// <summary>
/// Begins an operation to start copying source block blob's contents, properties, and metadata to the destination block blob.
/// </summary>
/// <param name="sourceBlobName">Name of the source blob.</param>
/// <param name="destBlobName">Name of the destination blob.</param>
/// <param name="destContainer">The destination container.</param>
/// <param name="cancellationToken">A <see cref="T:System.Threading.CancellationToken" /> to observe while waiting for a task to complete.</param>
/// <returns>The copy ID associated with the copy operation; empty if source blob does not exist.</returns>
public Task <string> StartCopyBlockBlobAsync(string sourceBlobName, string destBlobName, BlobContainer destContainer = null, CancellationToken?cancellationToken = null)
{
sourceBlobName.ValidateBlobName();
destBlobName.ValidateBlobName();
return(Task.Run(() =>
{
var sourceBlob = this.GetBlockBlob(sourceBlobName);
if (sourceBlob.Exists())
{
var destBlob = (destContainer ?? this).GetBlockBlob(destBlobName);
return destBlob.StartCopyAsync(sourceBlob, cancellationToken ?? CancellationToken.None);
}
else
{
return Task.FromResult(string.Empty);
}
},
cancellationToken ?? CancellationToken.None));
}
