/// <summary>
/// Implementation of the StartCopyFromBlob method. Result is a BlobAttributes object derived from the response headers.
/// </summary>
/// <param name="blob">The blob.</param>
/// <param name="attributes">The attributes.</param>
/// <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>
/// <returns>
/// A <see cref="RESTCommand{T}" /> that starts to copy the blob.
/// </returns>
/// <exception cref="System.ArgumentException">sourceAccessCondition</exception>
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.BuildRequestDelegate = (uri, builder, serverTimeout, ctx) => BlobHttpWebRequestFactory.CopyFrom(uri, serverTimeout, source, sourceAccessCondition, destAccessCondition, ctx);
putCmd.SetHeaders = (r, ctx) => BlobHttpWebRequestFactory.AddMetadata(r, attributes.Metadata);
putCmd.SignRequest = blob.ServiceClient.AuthenticationHandler.SignRequest;
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);
}
public static void AssertAreEqual(CopyState expected, CopyState actual)
{
if (expected == null)
{
Assert.IsNull(actual);
}
else
{
Assert.IsNotNull(actual);
Assert.AreEqual(expected.BytesCopied, actual.BytesCopied);
Assert.AreEqual(expected.CompletionTime, actual.CompletionTime);
Assert.AreEqual(expected.CopyId, actual.CopyId);
Assert.AreEqual(expected.Source, actual.Source);
Assert.AreEqual(expected.Status, actual.Status);
Assert.AreEqual(expected.TotalBytes, actual.TotalBytes);
}
}
public static void AssertAreEqual(CopyState copy1, CopyState copy2)
{
if (copy1 == null)
{
Assert.IsNull(copy2);
}
else
{
Assert.IsNotNull(copy2);
Assert.AreEqual(copy1.BytesCopied, copy2.BytesCopied);
Assert.AreEqual(copy1.CompletionTime, copy2.CompletionTime);
Assert.AreEqual(copy1.CopyId, copy2.CopyId);
Assert.AreEqual(copy1.Source, copy2.Source);
Assert.AreEqual(copy1.Status, copy2.Status);
Assert.AreEqual(copy1.TotalBytes, copy2.TotalBytes);
}
}
public static void AssertAreEqual(CopyState expected, CopyState actual)
{
if (expected == null)
{
Assert.IsNull(actual);
}
else
{
Assert.IsNotNull(actual);
Assert.AreEqual(expected.BytesCopied, actual.BytesCopied);
Assert.AreEqual(expected.CompletionTime, actual.CompletionTime);
Assert.AreEqual(expected.CopyId, actual.CopyId);
Assert.AreEqual(expected.Source, actual.Source);
Assert.AreEqual(expected.Status, actual.Status);
Assert.AreEqual(expected.TotalBytes, actual.TotalBytes);
}
}
private String CopyStateText(CopyState state)
{
if (state == null)
{
return String.Empty;
}
else
{
switch(state.Status)
{
case CopyStatus.Pending:
return "Pending";
case CopyStatus.Success:
return "Success";
case CopyStatus.Aborted:
return "Aborted";
case CopyStatus.Failed:
return "Failed";
case CopyStatus.Invalid:
return "Invalid";
default:
return "Other";
}
}
}
public HostedAzureCopyState(CopyState copyState)
{
_copyState = copyState;
}
public static void AssertAreEqual(CopyState copy1, CopyState copy2)
{
if (copy1 == null)
{
Assert.IsNull(copy2);
}
else
{
Assert.IsNotNull(copy2);
Assert.AreEqual(copy1.BytesCopied, copy2.BytesCopied);
Assert.AreEqual(copy1.CompletionTime, copy2.CompletionTime);
Assert.AreEqual(copy1.CopyId, copy2.CopyId);
Assert.AreEqual(copy1.Source, copy2.Source);
Assert.AreEqual(copy1.Status, copy2.Status);
Assert.AreEqual(copy1.TotalBytes, copy2.TotalBytes);
}
}
private void UpdateTransferProgress(CopyState copyState)
{
if (null != copyState &&
copyState.TotalBytes.HasValue)
{
Debug.Assert(
copyState.BytesCopied.HasValue,
"BytesCopied cannot be null as TotalBytes is not null.");
if (this.approachingFinish == false &&
copyState.TotalBytes - copyState.BytesCopied <= Constants.CopyApproachingFinishThresholdInBytes)
{
this.approachingFinish = true;
}
if (this.TransferContext != null)
{
long bytesTransferred = copyState.BytesCopied.Value;
this.UpdateProgressAddBytesTransferred(bytesTransferred - this.lastBytesCopied);
this.lastBytesCopied = bytesTransferred;
}
}
}
private void HandleFetchCopyStateResult(CopyState copyState)
{
if (null == copyState)
{
// Reach here, the destination should already exist.
string exceptionMessage = string.Format(
CultureInfo.CurrentCulture,
Resources.FailedToRetrieveCopyStateForObjectException,
this.DestUri.ToString());
throw new TransferException(
TransferErrorCode.FailToRetrieveCopyStateForObject,
exceptionMessage);
}
else
{
// Verify we are monitoring the right blob copying process.
if (!this.TransferJob.CopyId.Equals(copyState.CopyId))
{
throw new TransferException(
TransferErrorCode.MismatchCopyId,
Resources.MismatchFoundBetweenLocalAndServerCopyIdsException);
}
if (CopyStatus.Success == copyState.Status)
{
this.UpdateTransferProgress(copyState);
this.DisposeStatusRefreshTimer();
this.SetFinished();
}
else if (CopyStatus.Pending == copyState.Status)
{
this.UpdateTransferProgress(copyState);
// Wait a period to restart refresh the status.
this.RestartTimer();
}
else
{
string exceptionMessage = string.Format(
CultureInfo.CurrentCulture,
Resources.FailedToAsyncCopyObjectException,
this.GetSourceUri().ToString(),
this.DestUri.ToString(),
copyState.Status.ToString(),
copyState.StatusDescription);
// CopyStatus.Invalid | Failed | Aborted
throw new TransferException(
TransferErrorCode.AsyncCopyFailed,
exceptionMessage);
}
}
}
