public static void UploadTextAPM(CloudBlob blob, string text, Encoding encoding, AccessCondition accessCondition = null, BlobRequestOptions options = null, OperationContext operationContext = null)
{
byte[] textAsBytes = encoding.GetBytes(text);
using (MemoryStream stream = new MemoryStream())
{
stream.Write(textAsBytes, 0, textAsBytes.Length);
if (blob.BlobType == BlobType.PageBlob)
{
int lastPageSize = (int)(stream.Length % 512);
if (lastPageSize != 0)
{
byte[] padding = new byte[512 - lastPageSize];
stream.Write(padding, 0, padding.Length);
}
}
stream.Seek(0, SeekOrigin.Begin);
blob.ServiceClient.DefaultRequestOptions.ParallelOperationThreadCount = 2;
using (AutoResetEvent waitHandle = new AutoResetEvent(false))
{
if (blob.BlobType == BlobType.AppendBlob)
{
CloudAppendBlob blob1 = blob as CloudAppendBlob;
IAsyncResult result = blob1.BeginCreateOrReplace(
ar => waitHandle.Set(),
null);
waitHandle.WaitOne();
blob1.EndCreateOrReplace(result);
result = blob1.BeginAppendBlock(stream, null,
ar => waitHandle.Set(),
null);
waitHandle.WaitOne();
blob1.EndAppendBlock(result);
}
else if (blob.BlobType == BlobType.PageBlob)
{
CloudPageBlob pageBlob = blob as CloudPageBlob;
IAsyncResult result = pageBlob.BeginUploadFromStream(stream, accessCondition, options, operationContext,
ar => waitHandle.Set(),
null);
waitHandle.WaitOne();
pageBlob.EndUploadFromStream(result);
}
else
{
CloudBlockBlob blockBlob = blob as CloudBlockBlob;
IAsyncResult result = blockBlob.BeginUploadFromStream(stream, accessCondition, options, operationContext,
ar => waitHandle.Set(),
null);
waitHandle.WaitOne();
blockBlob.EndUploadFromStream(result);
}
}
}
}
public void CloudBlockBlobDownloadToStreamAPMCancel()
{
byte[] buffer = GetRandomBuffer(1 * 1024 * 1024);
CloudBlobContainer container = GetRandomContainerReference();
try
{
container.Create();
CloudBlockBlob blob = container.GetBlockBlobReference("blob1");
using (MemoryStream originalBlob = new MemoryStream(buffer))
{
using (AutoResetEvent waitHandle = new AutoResetEvent(false))
{
ICancellableAsyncResult result = blob.BeginUploadFromStream(originalBlob,
ar => waitHandle.Set(),
null);
waitHandle.WaitOne();
blob.EndUploadFromStream(result);
using (MemoryStream downloadedBlob = new MemoryStream())
{
OperationContext operationContext = new OperationContext();
result = blob.BeginDownloadToStream(downloadedBlob, null, null, operationContext,
ar => waitHandle.Set(),
null);
Thread.Sleep(100);
result.Cancel();
waitHandle.WaitOne();
try
{
blob.EndDownloadToStream(result);
}
catch (StorageException ex)
{
Assert.AreEqual("A task was canceled.", ex.Message);
Assert.AreEqual(ex.RequestInformation.HttpStatusCode, 306);
Assert.AreEqual(ex.RequestInformation.HttpStatusMessage, null);
}
TestHelper.AssertNAttempts(operationContext, 1);
}
}
}
}
finally
{
container.DeleteIfExists();
}
}
public void CloudBlockBlobDownloadRangeToStreamAPMRetry()
{
byte[] buffer = GetRandomBuffer(1 * 1024 * 1024);
int offset = 1024;
CloudBlobContainer container = GetRandomContainerReference();
try
{
container.Create();
CloudBlockBlob blob = container.GetBlockBlobReference("blob1");
using (MemoryStream originalBlob = new MemoryStream(buffer))
{
using (AutoResetEvent waitHandle = new AutoResetEvent(false))
{
ICancellableAsyncResult result = blob.BeginUploadFromStream(originalBlob,
ar => waitHandle.Set(),
null);
waitHandle.WaitOne();
blob.EndUploadFromStream(result);
}
}
using (MemoryStream originalBlob = new MemoryStream())
{
originalBlob.Write(buffer, offset, buffer.Length - offset);
using (AutoResetEvent waitHandle = new AutoResetEvent(false))
{
Exception manglerEx = null;
using (HttpMangler proxy = new HttpMangler(false,
new[]
{
TamperBehaviors.TamperNRequestsIf(
session => ThreadPool.QueueUserWorkItem(state =>
{
Thread.Sleep(1000);
try
{
session.Abort();
}
catch (Exception e)
{
manglerEx = e;
}
}),
2,
AzureStorageSelectors.BlobTraffic().IfHostNameContains(container.ServiceClient.Credentials.AccountName))
}))
{
foreach (var options in new[]
{
new BlobRequestOptions()
{
ChecksumOptions =
new ChecksumOptions
{
UseTransactionalMD5 = true,
UseTransactionalCRC64 = false
}
},
new BlobRequestOptions()
{
ChecksumOptions =
new ChecksumOptions
{
UseTransactionalMD5 = false,
UseTransactionalCRC64 = true
}
}
})
{
using (MemoryStream downloadedBlob = new MemoryStream())
{
OperationContext operationContext = new OperationContext();
ICancellableAsyncResult result = blob.BeginDownloadRangeToStream(downloadedBlob, offset, buffer.Length - offset, null, options, operationContext,
ar => waitHandle.Set(),
null);
waitHandle.WaitOne();
blob.EndDownloadToStream(result);
TestHelper.AssertStreamsAreEqual(originalBlob, downloadedBlob);
if (manglerEx != null)
{
throw manglerEx;
}
}
}
}
}
}
}
finally
{
container.DeleteIfExists();
}
}