/// <summary>
/// Implementation of the StartCopyFromBlob method. Result is a BlobAttributes object derived from the response headers.
/// </summary>
/// <param name="source">The URI of the source blob.</param>
/// <param name="sourceAccessCondition">An object that represents the access conditions for the source blob. If null, no condition is used.</param>
/// <param name="destAccessCondition">An object that represents the access conditions for the destination blob. If null, no condition is used.</param>
/// <param name="options">An object that specifies any additional options for the request.</param>
/// <param name="setResult">A delegate for setting the BlobAttributes result.</param>
/// <returns>A <see cref="RESTCommand"/> that starts to copy the blob.</returns>
internal static RESTCommand <string> StartCopyFromBlobImpl(ICloudBlob blob, BlobAttributes attributes, Uri source, AccessCondition sourceAccessCondition, AccessCondition destAccessCondition, BlobRequestOptions options)
{
if (sourceAccessCondition != null && !string.IsNullOrEmpty(sourceAccessCondition.LeaseId))
{
throw new ArgumentException(SR.LeaseConditionOnSource, "sourceAccessCondition");
}
RESTCommand <string> putCmd = new RESTCommand <string>(blob.ServiceClient.Credentials, attributes.Uri);
putCmd.ApplyRequestOptions(options);
putCmd.Handler = blob.ServiceClient.AuthenticationHandler;
putCmd.BuildClient = HttpClientFactory.BuildHttpClient;
putCmd.BuildRequest = (cmd, cnt, ctx) =>
{
HttpRequestMessage msg = BlobHttpRequestMessageFactory.CopyFrom(cmd.Uri, cmd.ServerTimeoutInSeconds, source, sourceAccessCondition, destAccessCondition, cnt, ctx);
BlobHttpRequestMessageFactory.AddMetadata(msg, attributes.Metadata);
return(msg);
};
putCmd.PreProcessResponse = (cmd, resp, ex, ctx) =>
{
HttpResponseParsers.ProcessExpectedStatusCodeNoException(HttpStatusCode.Accepted, resp, null /* retVal */, cmd, ex, ctx);
CopyState state = BlobHttpResponseParsers.GetCopyAttributes(resp);
attributes.Properties = BlobHttpResponseParsers.GetProperties(resp);
attributes.Metadata = BlobHttpResponseParsers.GetMetadata(resp);
attributes.CopyState = state;
return(state.CopyId);
};
return(putCmd);
}