/// <summary>
/// Implements the FetchAttributes method. The attributes are updated immediately.
/// </summary>
/// <param name="blobUri">The URI of the blob.</param>
/// <param name="accessCondition">An <see cref="AccessCondition"/> object that represents the access conditions for the blob. If <c>null</c>, no condition is used.</param>
/// <param name="options">A <see cref="BlobRequestOptions"/> object that specifies additional options for the request.</param>
/// <returns>A <see cref="RESTCommand"/> that fetches the attributes.</returns>
private RESTCommand <ICloudBlob> GetBlobReferenceImpl(StorageUri blobUri, AccessCondition accessCondition, BlobRequestOptions options)
{
// If the blob Uri contains SAS credentials, we need to use those
// credentials instead of this service client's stored credentials.
StorageCredentials parsedCredentials;
DateTimeOffset? parsedSnapshot;
blobUri = NavigationHelper.ParseBlobQueryAndVerify(blobUri, out parsedCredentials, out parsedSnapshot);
CloudBlobClient client = parsedCredentials != null ? new CloudBlobClient(this.StorageUri, parsedCredentials) : this;
RESTCommand <ICloudBlob> getCmd = new RESTCommand <ICloudBlob>(client.Credentials, blobUri, this.HttpClient);
options.ApplyToStorageCommand(getCmd);
getCmd.CommandLocationMode = CommandLocationMode.PrimaryOrSecondary;
getCmd.BuildRequest = (cmd, uri, builder, cnt, serverTimeout, ctx) => BlobHttpRequestMessageFactory.GetProperties(uri, serverTimeout,
parsedSnapshot, accessCondition, cnt, ctx, client.GetCanonicalizer(), client.Credentials, options);
getCmd.PreProcessResponse = (cmd, resp, ex, ctx) =>
{
HttpResponseParsers.ProcessExpectedStatusCodeNoException(HttpStatusCode.OK, resp, null /* retVal */, cmd, ex);
BlobAttributes attributes = new BlobAttributes()
{
StorageUri = blobUri,
SnapshotTime = parsedSnapshot,
};
CloudBlob.UpdateAfterFetchAttributes(attributes, resp);
switch (attributes.Properties.BlobType)
{
case BlobType.BlockBlob:
return(new CloudBlockBlob(attributes, client));
case BlobType.PageBlob:
return(new CloudPageBlob(attributes, client));
case BlobType.AppendBlob:
return(new CloudAppendBlob(attributes, client));
default:
throw new InvalidOperationException();
}
};
return(getCmd);
}
private static RESTCommand <IList <BlobBatchSubOperationResponse> > BatchImpl(BatchOperation batch, CloudBlobClient client, BlobRequestOptions requestOptions)
{
// ContentMD5??
//string contentMD5 = null;
/*if (requestOptions.UseTransactionalMD5.HasValue && requestOptions.UseTransactionalMD5.Value)
* {
* contentMD5 = memoryStream.ComputeMD5Hash();
* }*/
RESTCommand <IList <BlobBatchSubOperationResponse> > batchCmd = new RESTCommand <IList <BlobBatchSubOperationResponse> >(client.Credentials, client.StorageUri, client.HttpClient);
requestOptions.ApplyToStorageCommand(batchCmd);
List <BlobBatchSubOperationResponse> results = new List <BlobBatchSubOperationResponse>();
batchCmd.CommandLocationMode = CommandLocationMode.PrimaryOnly;
batchCmd.RetrieveResponseStream = true;
batchCmd.PreProcessResponse = (cmd, resp, ex, ctx) => HttpResponseParsers.ProcessExpectedStatusCodeNoException(HttpStatusCode.Accepted, resp, null /* retVal */, cmd, ex);
batchCmd.BuildContent = (cmd, ctx) => BlobHttpRequestMessageFactory.WriteBatchBody(client, cmd, batch, ctx);
batchCmd.BuildRequest = (cmd, uri, builder, cnt, serverTimeout, ctx) => BlobHttpRequestMessageFactory.PrepareBatchRequest(uri, client.BufferManager, serverTimeout, batch, cnt, ctx, client.GetCanonicalizer(), client.Credentials);
batchCmd.PostProcessResponseAsync = (cmd, resp, ctx, ct) => BlobHttpResponseParsers.BatchPostProcessAsync(results, cmd, new[] { HttpStatusCode.Accepted, HttpStatusCode.OK }, resp, ctx, ct);
return(batchCmd);
}