public async Task <StatisticsReport> Load(string name)
{
// In NuGet we always use lowercase names for all blobs in Azure Storage
name = name.ToLowerInvariant();
string connectionString = _connectionString;
CloudStorageAccount storageAccount = CloudStorageAccount.Parse(connectionString);
CloudBlobClient blobClient = storageAccount.CreateCloudBlobClient();
CloudBlobContainer container = blobClient.GetContainerReference("stats");
CloudBlockBlob blob = container.GetBlockBlobReference("popularity/" + name);
MemoryStream stream = new MemoryStream();
await Task.Factory.FromAsync(blob.BeginFetchAttributes(null, null), blob.EndFetchAttributes);
await Task.Factory.FromAsync(blob.BeginDownloadToStream(stream, null, null), blob.EndDownloadToStream);
stream.Seek(0, SeekOrigin.Begin);
string content;
using (TextReader reader = new StreamReader(stream))
{
content = reader.ReadToEnd();
}
return(new StatisticsReport(content, (blob.Properties.LastModified == null ? (DateTime?)null : blob.Properties.LastModified.Value.UtcDateTime)));
}
public async Task <string> Load(string name)
{
// In NuGet we always use lowercase names for all blobs in Azure Storage
name = name.ToLowerInvariant();
string connectionString = _connectionString;
CloudStorageAccount storageAccount = CloudStorageAccount.Parse(connectionString);
CloudBlobClient blobClient = storageAccount.CreateCloudBlobClient();
CloudBlobContainer container = blobClient.GetContainerReference("stats");
CloudBlockBlob blob = container.GetBlockBlobReference("popularity/" + name);
MemoryStream stream = new MemoryStream();
await Task.Factory.FromAsync(blob.BeginDownloadToStream(stream, null, null), blob.EndDownloadToStream);
stream.Seek(0, SeekOrigin.Begin);
string content;
using (TextReader reader = new StreamReader(stream))
{
content = reader.ReadToEnd();
}
return(content);
}
/// <summary>
/// Download Stream from BlobStore with a given name
/// </summary>
/// <param name="stream">
/// Stream to download to
/// </param>
/// <param name="blobName">
/// Name of the blob to download
/// </param>
/// <returns>
/// Async Task Wrapper
/// </returns>
/// <remarks>
/// Internal for Testing. Should not be called directly.
/// </remarks>
public async Task DownloadBlobAsync(Stream stream, string blobName)
{
CloudBlockBlob blockBlob = Container.GetBlockBlobReference(blobName);
await Task.Factory.FromAsync(
blockBlob.BeginDownloadToStream(stream, null, null),
blockBlob.EndDownloadToStream).ConfigureAwait(false);
}
public static async Task <T> DownloadToStreamAsync <T>(this CloudBlockBlob blob, T stream)
where T : Stream
{
var tcs = new TaskCompletionSource <T>();
blob.BeginDownloadToStream(stream, iar =>
{
try { blob.EndDownloadToStream(iar); tcs.TrySetResult(stream); }
catch (OperationCanceledException) { tcs.TrySetCanceled(); }
catch (Exception ex) { tcs.TrySetException(ex); }
}, null);
return(await tcs.Task);
}
private static async Task <string> DownloadTextAsync(CloudBlockBlob blob)
{
using (Stream memoryStream = new MemoryStream())
{
IAsyncResult asyncResult = blob.BeginDownloadToStream(memoryStream, null, null);
await Task.Factory.FromAsync(asyncResult, (r) => { blob.EndDownloadToStream(r); });
memoryStream.Position = 0;
byte[] biteArray = new byte[memoryStream.Length];
memoryStream.Read(biteArray, 0, (int)memoryStream.Length);
return(System.Convert.ToBase64String(biteArray));
}
}
