public static CloudBlob GetBlobReferenceFromServer(
CloudBlobContainer container,
string blobName,
AccessCondition accessCondition = null,
BlobRequestOptions options = null,
OperationContext operationContext = null)
{
CloudBlob blob = container.GetBlobReference(blobName);
return GetBlobReferenceFromServer(blob, accessCondition, options, operationContext);
}
public CloudStreamProvider(CloudBlobContainer container, string kind, string path)
{
if(path == null)
throw new ArgumentNullException("path");
if (String.IsNullOrWhiteSpace(path))
throw new ArgumentException("path");
if (container == null)
throw new ArgumentNullException("container");
Container = container;
Kind = kind;
Path = path;
if (!Container.GetBlobReference(Path).Exists())
throw new FileNotFoundException();
BlobType = container.GetBlobReference(path).BlobType;
}
/// <summary>
/// Return a task that asynchronously get the blob reference from server
/// </summary>
/// <param name="container">CloudBlobContainer object</param>
/// <param name="blobName">Blob name</param>
/// <param name="accessCondition">Access condition</param>
/// <param name="options">Blob request options</param>
/// <param name="operationContext">Operation context</param>
/// <param name="cmdletCancellationToken">Cancellation token</param>
/// <returns>A task object that asynchronously get the blob reference from server</returns>
public async Task<CloudBlob> GetBlobReferenceFromServerAsync(CloudBlobContainer container, string blobName, AccessCondition accessCondition, BlobRequestOptions options, OperationContext operationContext, CancellationToken cancellationToken)
{
try
{
CloudBlob blob = container.GetBlobReference(blobName);
await blob.FetchAttributesAsync(accessCondition, options, operationContext, cancellationToken);
return Util.GetCorrespondingTypeBlobReference(blob);
}
catch (StorageException e)
{
if (e.IsNotFoundException())
{
return null;
}
else
{
throw;
}
}
}
private async Task TransferBlob(
CloudBlobContainer fromContainer,
CloudBlobContainer toContainer,
string blobName,
CancellationToken cancellationToken)
{
var requestOptions = new BlobRequestOptions()
{
RetryPolicy = new LinearRetry(TimeSpan.FromSeconds(2), 5)
};
var destBlobRef = toContainer.GetBlobReference(blobName);
var blob = fromContainer.GetBlobReference(blobName);
await destBlobRef.StartCopyAsync(
blob.Uri,
AccessCondition.GenerateEmptyCondition(),
AccessCondition.GenerateEmptyCondition(),
requestOptions,
null,
cancellationToken);
var allCopied = false;
var copyFailed = false;
do
{
var blobRef = await toContainer.GetBlobReferenceFromServerAsync(blobName, cancellationToken);
if (blobRef.CopyState.Status == CopyStatus.Aborted || blobRef.CopyState.Status == CopyStatus.Failed)
{
this.logger.LogError($"Cannot copy {blobRef.Uri}");
copyFailed = true;
}
allCopied = blobRef.CopyState.Status != CopyStatus.Pending;
}
while (!allCopied || copyFailed);
await blob.DeleteAsync(cancellationToken);
}
// Deleting and recreating a container can result in a 409 as the container name is not
// immediately available. Instead, use this helper to clear a container.
public static void ClearContainer(CloudBlobContainer container)
{
foreach (IListBlobItem blobItem in container.ListBlobs())
{
CloudBlockBlob blockBlob = blobItem as CloudBlockBlob;
if (blockBlob != null)
{
container.GetBlobReference(blockBlob.Name).DeleteIfExists();
}
}
}
private async Task<IEnumerable<IListBlobItem>> TransferBlobs(
bool rename,
CloudBlobContainer fromContainer,
CloudBlobContainer toContainer,
CancellationToken cancellationToken)
{
var requestOptions = new BlobRequestOptions()
{
RetryPolicy = new LinearRetry(TimeSpan.FromSeconds(2), 5)
};
var leaseId = Guid.NewGuid().ToString();
var leaseResult = string.Empty;
var autoEvent = new AutoResetEvent(false);
var waitEvent = new AutoResetEvent(false);
var leaseTimer = new Timer(
async s =>
{
try
{
if (string.IsNullOrEmpty(leaseResult))
{
leaseResult =
await
fromContainer.AcquireLeaseAsync(
TimeSpan.FromSeconds(60),
leaseId,
null,
requestOptions,
null,
cancellationToken);
waitEvent.Set();
}
else
{
await
fromContainer.RenewLeaseAsync(
AccessCondition.GenerateLeaseCondition(leaseId),
requestOptions,
null,
cancellationToken);
}
}
catch (StorageException exception)
{
if (exception.RequestInformation.HttpStatusCode == (int)HttpStatusCode.Conflict)
{
this.logger.LogInformation("Staging container already has a lease.");
}
}
},
autoEvent,
TimeSpan.FromSeconds(0),
TimeSpan.FromSeconds(50));
waitEvent.WaitOne();
try
{
BlobContinuationToken token = null;
var blobList = new List<CopySpec>();
do
{
var result = await fromContainer.ListBlobsSegmentedAsync(token, cancellationToken);
token = result.ContinuationToken;
blobList.AddRange(result.Results.OfType<CloudBlob>().Select(b => new CopySpec() {SourceBlob = b}));
} while (token != null);
// Copy
var copiedBlobList = new List<CopySpec>();
foreach (var blob in blobList)
{
var srcBlobName = blob.SourceBlob.Uri.Segments[2];
var blobName = rename
? $"{Path.GetFileNameWithoutExtension(srcBlobName)}{Guid.NewGuid().ToString().Replace("-", "")}{Path.GetExtension(srcBlobName)}"
: srcBlobName;
var destBlobRef = toContainer.GetBlobReference(blobName);
blob.DestBlob = destBlobRef;
try
{
await
destBlobRef.StartCopyAsync(
blob.SourceBlob.Uri,
AccessCondition.GenerateEmptyCondition(),
AccessCondition.GenerateEmptyCondition(),
requestOptions,
null,
cancellationToken);
copiedBlobList.Add(blob);
}
catch (Exception e)
{
this.logger.LogError($"Error while copying {blobName}. {e.ToString()}");
}
}
this.logger.LogInformation($"Started copying {copiedBlobList.Count} blobs");
var blobsToRemove = new List<CopySpec>();
var blobsToCheck = copiedBlobList.Select(b => b.SourceBlob.Uri.AbsoluteUri).ToList();
do
{
var withProperties = copiedBlobList.Select(b =>
{
b.DestBlob.FetchAttributes(AccessCondition.GenerateEmptyCondition(), requestOptions, null);
return b;
}).ToList();
foreach (var blob in withProperties)
{
if (blob.DestBlob.CopyState.Status == CopyStatus.Aborted
|| blob.DestBlob.CopyState.Status == CopyStatus.Failed)
{
this.logger.LogError($"Cannot copy {blob.DestBlob.Uri}");
blobsToCheck.Remove(blob.SourceBlob.Uri.AbsoluteUri);
}
if (blob.DestBlob.CopyState.Status != CopyStatus.Success) continue;
blobsToRemove.Add(blob);
blobsToCheck.Remove(blob.SourceBlob.Uri.AbsoluteUri);
}
}
while (blobsToCheck.Any());
this.logger.LogInformation($"{blobsToRemove.Count} blobs copied.");
foreach (var blob in blobsToRemove)
{
try
{
await
blob.SourceBlob.DeleteAsync(
DeleteSnapshotsOption.IncludeSnapshots,
AccessCondition.GenerateEmptyCondition(),
requestOptions,
null,
cancellationToken);
this.logger.LogInformation($"Deleted {blob.SourceBlob.Uri.AbsoluteUri}");
}
catch (StorageException e)
{
if (e.RequestInformation.HttpStatusCode == (int)HttpStatusCode.NotFound)
{
this.logger.LogInformation($"Blob not found {blob.SourceBlob.Uri}");
}
else
{
this.logger.LogError(e.ToString());
}
}
catch (Exception exception)
{
this.logger.LogError(exception.ToString());
}
};
leaseTimer.Dispose();
await fromContainer.ReleaseLeaseAsync(AccessCondition.GenerateLeaseCondition(leaseId),
requestOptions, null, cancellationToken);
this.logger.LogInformation($"{blobsToRemove.Count} blobs deleted.");
return copiedBlobList.Where(b => b.DestBlob.CopyState.Status == CopyStatus.Success).Select(b => b.DestBlob);
}
catch (Exception exception)
{
this.logger.LogCritical(exception.ToString());
return default(IEnumerable<IListBlobItem>);
}
}
public void CloudBlobSoftDeleteSnapshotTask()
{
CloudBlobContainer container = GetRandomContainerReference();
try
{
//Enables a delete retention policy on the blob with 1 day of default retention days
container.ServiceClient.EnableSoftDelete();
container.CreateAsync().Wait();
// Upload some data to the blob.
MemoryStream originalData = new MemoryStream(GetRandomBuffer(1024));
CloudAppendBlob appendBlob = container.GetAppendBlobReference(BlobName);
appendBlob.UploadFromStreamAsync(originalData).Wait();
CloudBlob blob = container.GetBlobReference(BlobName);
//create snapshot via api
CloudBlob snapshot = blob.SnapshotAsync().Result;
//create snapshot via write protection
appendBlob.UploadFromStreamAsync(originalData).Wait();
//we should have 2 snapshots 1 regular and 1 deleted: there is no way to get only the deleted snapshots but the below listing will get both snapshot types
int blobCount = 0;
int deletedSnapshotCount = 0;
int snapShotCount = 0;
BlobContinuationToken ct = null;
do
{
foreach (IListBlobItem item in container.ListBlobsSegmentedAsync
(null, true, BlobListingDetails.Snapshots | BlobListingDetails.Deleted, null, ct, null, null)
.Result
.Results
.ToList())
{
CloudAppendBlob blobItem = (CloudAppendBlob)item;
Assert.AreEqual(blobItem.Name, BlobName);
if (blobItem.IsSnapshot)
{
snapShotCount++;
}
if (blobItem.IsDeleted)
{
Assert.IsNotNull(blobItem.Properties.DeletedTime);
Assert.AreEqual(blobItem.Properties.RemainingDaysBeforePermanentDelete, 0);
deletedSnapshotCount++;
}
blobCount++;
}
} while (ct != null);
Assert.AreEqual(blobCount, 3);
Assert.AreEqual(deletedSnapshotCount, 1);
Assert.AreEqual(snapShotCount, 2);
blobCount = 0;
ct = null;
do
{
foreach (IListBlobItem item in container.ListBlobsSegmentedAsync
(null, true, BlobListingDetails.Snapshots, null, ct, null, null)
.Result
.Results
.ToList())
{
CloudAppendBlob blobItem = (CloudAppendBlob)item;
Assert.AreEqual(blobItem.Name, BlobName);
Assert.IsFalse(blobItem.IsDeleted);
Assert.IsNull(blobItem.Properties.DeletedTime);
Assert.IsNull(blobItem.Properties.RemainingDaysBeforePermanentDelete);
blobCount++;
}
} while (ct != null);
Assert.AreEqual(blobCount, 2);
//Delete Blob and snapshots
blob.DeleteAsync(DeleteSnapshotsOption.IncludeSnapshots, null, null, null).Wait();
Assert.IsFalse(blob.ExistsAsync().Result);
Assert.IsFalse(snapshot.ExistsAsync().Result);
blobCount = 0;
ct = null;
do
{
foreach (IListBlobItem item in container.ListBlobsSegmentedAsync
(null, true, BlobListingDetails.All, null, ct, null, null)
.Result
.Results
.ToList())
{
CloudAppendBlob blobItem = (CloudAppendBlob)item;
Assert.AreEqual(blobItem.Name, BlobName);
Assert.IsTrue(blobItem.IsDeleted);
Assert.IsNotNull(blobItem.Properties.DeletedTime);
Assert.AreEqual(blobItem.Properties.RemainingDaysBeforePermanentDelete, 0);
blobCount++;
}
} while (ct != null);
Assert.AreEqual(blobCount, 3);
blob.UndeleteAsync().Wait();
blob.FetchAttributesAsync().Wait();
Assert.IsFalse(blob.IsDeleted);
Assert.IsNull(blob.Properties.DeletedTime);
Assert.IsNull(blob.Properties.RemainingDaysBeforePermanentDelete);
blobCount = 0;
ct = null;
do
{
foreach (IListBlobItem item in container.ListBlobsSegmentedAsync
(null, true, BlobListingDetails.All, null, ct, null, null)
.Result
.Results
.ToList())
{
CloudAppendBlob blobItem = (CloudAppendBlob)item;
Assert.AreEqual(blobItem.Name, BlobName);
Assert.IsFalse(blobItem.IsDeleted);
Assert.IsNull(blobItem.Properties.DeletedTime);
Assert.IsNull(blobItem.Properties.RemainingDaysBeforePermanentDelete);
blobCount++;
}
} while (ct != null);
Assert.AreEqual(blobCount, 3);
}
finally
{
container.ServiceClient.DisableSoftDelete();
container.DeleteIfExistsAsync().Wait();
}
}
public async Task CloudBlobSnapshotAsync()
{
CloudBlobContainer container = GetRandomContainerReference();
try
{
await container.CreateAsync();
MemoryStream originalData = new MemoryStream(GetRandomBuffer(1024));
CloudBlockBlob blockBlob = container.GetBlockBlobReference(BlobName);
await blockBlob.UploadFromStreamAsync(originalData);
CloudBlob blob = container.GetBlobReference(BlobName);
await blob.FetchAttributesAsync();
Assert.IsFalse(blob.IsSnapshot);
Assert.IsNull(blob.SnapshotTime, "Root blob has SnapshotTime set");
Assert.IsFalse(blob.SnapshotQualifiedUri.Query.Contains("snapshot"));
Assert.AreEqual(blob.Uri, blob.SnapshotQualifiedUri);
CloudBlob snapshot1 = await blob.SnapshotAsync();
Assert.AreEqual(blob.Properties.ETag, snapshot1.Properties.ETag);
Assert.AreEqual(blob.Properties.LastModified, snapshot1.Properties.LastModified);
Assert.IsTrue(snapshot1.IsSnapshot);
Assert.IsNotNull(snapshot1.SnapshotTime, "Snapshot does not have SnapshotTime set");
Assert.AreEqual(blob.Uri, snapshot1.Uri);
Assert.AreNotEqual(blob.SnapshotQualifiedUri, snapshot1.SnapshotQualifiedUri);
Assert.AreNotEqual(snapshot1.Uri, snapshot1.SnapshotQualifiedUri);
Assert.IsTrue(snapshot1.SnapshotQualifiedUri.Query.Contains("snapshot"));
CloudBlob snapshot2 = await blob.SnapshotAsync();
Assert.IsTrue(snapshot2.SnapshotTime.Value > snapshot1.SnapshotTime.Value);
await snapshot1.FetchAttributesAsync();
await snapshot2.FetchAttributesAsync();
await blob.FetchAttributesAsync();
AssertAreEqual(snapshot1.Properties, blob.Properties);
CloudBlob snapshot1Clone = new CloudBlob(new Uri(blob.Uri + "?snapshot=" + snapshot1.SnapshotTime.Value.ToString("O")), blob.ServiceClient.Credentials);
Assert.IsNotNull(snapshot1Clone.SnapshotTime, "Snapshot clone does not have SnapshotTime set");
Assert.AreEqual(snapshot1.SnapshotTime.Value, snapshot1Clone.SnapshotTime.Value);
await snapshot1Clone.FetchAttributesAsync();
AssertAreEqual(snapshot1.Properties, snapshot1Clone.Properties);
// The query parser should not be case sensitive in detecting a snapshot in the query string
CloudBlob snapshotParseVerifier = new CloudBlob(new Uri(blob.Uri + "?sNapshOt=" + snapshot1.SnapshotTime.Value.ToString("O")), blob.ServiceClient.Credentials);
Assert.IsNotNull(snapshotParseVerifier.SnapshotTime, "Snapshot parse verifier did not successfully detect the snapshot time");
Assert.AreEqual(snapshot1.SnapshotTime.Value, snapshotParseVerifier.SnapshotTime.Value);
CloudBlob snapshotCopy = container.GetBlobReference("blob2");
await snapshotCopy.StartCopyAsync(TestHelper.Defiddler(snapshot1.Uri));
await WaitForCopyAsync(snapshotCopy);
Assert.AreEqual(CopyStatus.Success, snapshotCopy.CopyState.Status);
using (Stream snapshotStream = (await snapshot1.OpenReadAsync()))
{
snapshotStream.Seek(0, SeekOrigin.End);
TestHelper.AssertStreamsAreEqual(originalData, snapshotStream);
}
await blockBlob.PutBlockListAsync(new List <string>());
await blob.FetchAttributesAsync();
using (Stream snapshotStream = (await snapshot1.OpenReadAsync()))
{
snapshotStream.Seek(0, SeekOrigin.End);
TestHelper.AssertStreamsAreEqual(originalData, snapshotStream);
}
BlobResultSegment resultSegment = await container.ListBlobsSegmentedAsync(null, true, BlobListingDetails.All, null, null, null, null);
List <IListBlobItem> blobs = resultSegment.Results.ToList();
Assert.AreEqual(4, blobs.Count);
AssertAreEqual(snapshot1, (CloudBlob)blobs[0]);
AssertAreEqual(snapshot2, (CloudBlob)blobs[1]);
AssertAreEqual(blob, (CloudBlob)blobs[2]);
AssertAreEqual(snapshotCopy, (CloudBlob)blobs[3]);
}
finally
{
container.DeleteIfExistsAsync().Wait();
}
}
public void CloudBlobSoftDeleteNoSnapshotTask()
{
CloudBlobContainer container = GetRandomContainerReference();
try
{
//Enables a delete retention policy on the blob with 1 day of default retention days
container.ServiceClient.EnableSoftDelete();
container.CreateAsync().Wait();
// Upload some data to the blob.
MemoryStream originalData = new MemoryStream(GetRandomBuffer(1024));
CloudAppendBlob appendBlob = container.GetAppendBlobReference(BlobName);
appendBlob.CreateOrReplaceAsync().Wait();
appendBlob.AppendBlockAsync(originalData, null).Wait();
CloudBlob blob = container.GetBlobReference(BlobName);
Assert.IsTrue(blob.ExistsAsync().Result);
Assert.IsFalse(blob.IsDeleted);
blob.DeleteAsync().Wait();
Assert.IsFalse(blob.ExistsAsync().Result);
int blobCount = 0;
BlobContinuationToken ct = null;
do
{
foreach (IListBlobItem item in container.ListBlobsSegmentedAsync
(null, true, BlobListingDetails.All, null, ct, null, null)
.Result
.Results
.ToList())
{
CloudAppendBlob blobItem = (CloudAppendBlob)item;
Assert.AreEqual(blobItem.Name, BlobName);
Assert.IsTrue(blobItem.IsDeleted);
Assert.IsNotNull(blobItem.Properties.DeletedTime);
Assert.AreEqual(blobItem.Properties.RemainingDaysBeforePermanentDelete, 0);
blobCount++;
}
} while (ct != null);
Assert.AreEqual(blobCount, 1);
blob.UndeleteAsync().Wait();
blob.FetchAttributesAsync().Wait();
Assert.IsFalse(blob.IsDeleted);
Assert.IsNull(blob.Properties.DeletedTime);
Assert.IsNull(blob.Properties.RemainingDaysBeforePermanentDelete);
blobCount = 0;
ct = null;
do
{
foreach (IListBlobItem item in container.ListBlobsSegmentedAsync
(null, true, BlobListingDetails.All, null, ct, null, null)
.Result
.Results
.ToList())
{
CloudAppendBlob blobItem = (CloudAppendBlob)item;
Assert.AreEqual(blobItem.Name, BlobName);
Assert.IsFalse(blobItem.IsDeleted);
Assert.IsNull(blobItem.Properties.DeletedTime);
Assert.IsNull(blobItem.Properties.RemainingDaysBeforePermanentDelete);
blobCount++;
}
} while (ct != null);
Assert.AreEqual(blobCount, 1);
}
finally
{
container.ServiceClient.DisableSoftDelete();
container.DeleteIfExistsAsync().Wait();
}
}
public void CloudBlobSoftDeleteNoSnapshotAPM()
{
CloudBlobContainer container = GetRandomContainerReference();
try
{
//Enables a delete retention policy on the blob with 1 day of default retention days
container.ServiceClient.EnableSoftDelete();
container.Create();
// Upload some data to the blob.
MemoryStream originalData = new MemoryStream(GetRandomBuffer(1024));
CloudAppendBlob appendBlob = container.GetAppendBlobReference(BlobName);
appendBlob.CreateOrReplace();
appendBlob.AppendBlock(originalData, null);
CloudBlob blob = container.GetBlobReference(BlobName);
Assert.IsFalse(blob.IsDeleted);
IAsyncResult result;
using (AutoResetEvent waitHandle = new AutoResetEvent(false))
{
result = blob.BeginDelete(DeleteSnapshotsOption.None, null, null, null, ar => waitHandle.Set(), null);
waitHandle.WaitOne();
blob.EndDelete(result);
}
Assert.IsFalse(blob.Exists());
int blobCount = 0;
foreach (IListBlobItem item in container.ListBlobs(null, true, BlobListingDetails.All))
{
CloudAppendBlob blobItem = (CloudAppendBlob)item;
Assert.AreEqual(blobItem.Name, BlobName);
Assert.IsTrue(blobItem.IsDeleted);
Assert.IsNotNull(blobItem.Properties.DeletedTime);
Assert.AreEqual(blobItem.Properties.RemainingDaysBeforePermanentDelete, 0);
blobCount++;
}
Assert.AreEqual(blobCount, 1);
using (AutoResetEvent waitHandle = new AutoResetEvent(false))
{
result = blob.BeginUndelete(ar => waitHandle.Set(), null);
waitHandle.WaitOne();
blob.EndUndelete(result);
}
blob.FetchAttributes();
Assert.IsFalse(blob.IsDeleted);
Assert.IsNull(blob.Properties.DeletedTime);
Assert.IsNull(blob.Properties.RemainingDaysBeforePermanentDelete);
blobCount = 0;
foreach (IListBlobItem item in container.ListBlobs(null, true, BlobListingDetails.All))
{
CloudAppendBlob blobItem = (CloudAppendBlob)item;
Assert.AreEqual(blobItem.Name, BlobName);
Assert.IsFalse(blobItem.IsDeleted);
Assert.IsNull(blobItem.Properties.DeletedTime);
Assert.IsNull(blobItem.Properties.RemainingDaysBeforePermanentDelete);
blobCount++;
}
Assert.AreEqual(blobCount, 1);
}
finally
{
container.ServiceClient.DisableSoftDelete();
container.DeleteIfExists();
}
}
public void CloudBlobSnapshot()
{
CloudBlobContainer container = GetRandomContainerReference();
try
{
container.Create();
// Upload some data to the blob.
MemoryStream originalData = new MemoryStream(GetRandomBuffer(1024));
CloudAppendBlob appendBlob = container.GetAppendBlobReference(BlobName);
appendBlob.CreateOrReplace();
appendBlob.AppendBlock(originalData, null);
CloudBlob blob = container.GetBlobReference(BlobName);
blob.FetchAttributes();
Assert.IsFalse(blob.IsSnapshot);
Assert.IsNull(blob.SnapshotTime, "Root blob has SnapshotTime set");
Assert.IsFalse(blob.SnapshotQualifiedUri.Query.Contains("snapshot"));
Assert.AreEqual(blob.Uri, blob.SnapshotQualifiedUri);
CloudBlob snapshot1 = blob.Snapshot();
Assert.AreEqual(blob.Properties.ETag, snapshot1.Properties.ETag);
Assert.AreEqual(blob.Properties.LastModified, snapshot1.Properties.LastModified);
Assert.IsTrue(snapshot1.IsSnapshot);
Assert.IsNotNull(snapshot1.SnapshotTime, "Snapshot does not have SnapshotTime set");
Assert.AreEqual(blob.Uri, snapshot1.Uri);
Assert.AreNotEqual(blob.SnapshotQualifiedUri, snapshot1.SnapshotQualifiedUri);
Assert.AreNotEqual(snapshot1.Uri, snapshot1.SnapshotQualifiedUri);
Assert.IsTrue(snapshot1.SnapshotQualifiedUri.Query.Contains("snapshot"));
CloudBlob snapshot2 = blob.Snapshot();
Assert.IsTrue(snapshot2.SnapshotTime.Value > snapshot1.SnapshotTime.Value);
snapshot1.FetchAttributes();
snapshot2.FetchAttributes();
blob.FetchAttributes();
AssertAreEqual(snapshot1.Properties, blob.Properties, false);
CloudBlob snapshot1Clone = new CloudBlob(new Uri(blob.Uri + "?snapshot=" + snapshot1.SnapshotTime.Value.ToString("O")), blob.ServiceClient.Credentials);
Assert.IsNotNull(snapshot1Clone.SnapshotTime, "Snapshot clone does not have SnapshotTime set");
Assert.AreEqual(snapshot1.SnapshotTime.Value, snapshot1Clone.SnapshotTime.Value);
snapshot1Clone.FetchAttributes();
AssertAreEqual(snapshot1.Properties, snapshot1Clone.Properties, false);
// The query parser should not be case sensitive in detecting a snapshot in the query string
CloudBlob snapshotParseVerifier = new CloudBlob(new Uri(blob.Uri + "?sNapshOt=" + snapshot1.SnapshotTime.Value.ToString("O")), blob.ServiceClient.Credentials);
Assert.IsNotNull(snapshotParseVerifier.SnapshotTime, "Snapshot parse verifier did not successfully detect the snapshot time");
Assert.AreEqual(snapshot1.SnapshotTime.Value, snapshotParseVerifier.SnapshotTime.Value);
CloudBlob snapshotCopy = container.GetBlobReference("blob2");
snapshotCopy.StartCopy(TestHelper.Defiddler(snapshot1.Uri));
WaitForCopy(snapshotCopy);
Assert.AreEqual(CopyStatus.Success, snapshotCopy.CopyState.Status);
using (Stream snapshotStream = snapshot1.OpenRead())
{
snapshotStream.Seek(0, SeekOrigin.End);
TestHelper.AssertStreamsAreEqual(originalData, snapshotStream);
}
//overwriting the blob and creating the 5th snapshot
appendBlob.CreateOrReplace();
blob.FetchAttributes();
using (Stream snapshotStream = snapshot1.OpenRead())
{
snapshotStream.Seek(0, SeekOrigin.End);
TestHelper.AssertStreamsAreEqual(originalData, snapshotStream);
}
List <IListBlobItem> blobs = container.ListBlobs(null, true, BlobListingDetails.All, null, null).ToList();
Assert.AreEqual(4, blobs.Count);
AssertAreEqual(snapshot1, (CloudBlob)blobs[0]);
AssertAreEqual(snapshot2, (CloudBlob)blobs[1]);
AssertAreEqual(blob, (CloudBlob)blobs[2]);
AssertAreEqual(snapshotCopy, (CloudBlob)blobs[3]);
}
finally
{
container.DeleteIfExists();
}
}
public void CloudBlobSnapshotTask()
{
CloudBlobContainer container = GetRandomContainerReference();
try
{
container.CreateAsync().Wait();
MemoryStream originalData = new MemoryStream(GetRandomBuffer(1024));
CloudAppendBlob appendBlob = container.GetAppendBlobReference(BlobName);
appendBlob.CreateOrReplaceAsync().Wait();
appendBlob.AppendBlockAsync(originalData, null).Wait();
CloudBlob blob = container.GetBlobReference(BlobName);
blob.FetchAttributesAsync().Wait();
CloudBlob snapshot1 = blob.SnapshotAsync().Result;
Assert.AreEqual(blob.Properties.ETag, snapshot1.Properties.ETag);
Assert.AreEqual(blob.Properties.LastModified, snapshot1.Properties.LastModified);
Assert.IsTrue(snapshot1.IsSnapshot);
Assert.IsNotNull(snapshot1.SnapshotTime, "Snapshot does not have SnapshotTime set");
Assert.AreEqual(blob.Uri, snapshot1.Uri);
Assert.AreNotEqual(blob.SnapshotQualifiedUri, snapshot1.SnapshotQualifiedUri);
Assert.AreNotEqual(snapshot1.Uri, snapshot1.SnapshotQualifiedUri);
Assert.IsTrue(snapshot1.SnapshotQualifiedUri.Query.Contains("snapshot"));
CloudBlob snapshot2 = blob.SnapshotAsync().Result;
Assert.IsTrue(snapshot2.SnapshotTime.Value > snapshot1.SnapshotTime.Value);
snapshot1.FetchAttributesAsync().Wait();
snapshot2.FetchAttributesAsync().Wait();
blob.FetchAttributesAsync().Wait();
AssertAreEqual(snapshot1.Properties, blob.Properties);
CloudBlob snapshot1Clone = new CloudBlob(new Uri(blob.Uri + "?snapshot=" + snapshot1.SnapshotTime.Value.ToString("O")), blob.ServiceClient.Credentials);
Assert.IsNotNull(snapshot1Clone.SnapshotTime, "Snapshot clone does not have SnapshotTime set");
Assert.AreEqual(snapshot1.SnapshotTime.Value, snapshot1Clone.SnapshotTime.Value);
snapshot1Clone.FetchAttributesAsync().Wait();
AssertAreEqual(snapshot1.Properties, snapshot1Clone.Properties);
CloudBlob snapshotCopy = container.GetBlobReference("blob2");
snapshotCopy.StartCopyAsync(snapshot1.Uri, null, null, null, null).Wait();
WaitForCopy(snapshotCopy);
Assert.AreEqual(CopyStatus.Success, snapshotCopy.CopyState.Status);
using (Stream snapshotStream = snapshot1.OpenReadAsync().Result)
{
snapshotStream.Seek(0, SeekOrigin.End);
TestHelper.AssertStreamsAreEqual(originalData, snapshotStream);
}
//overwriting will create another snapshot
appendBlob.CreateOrReplaceAsync().Wait();
blob.FetchAttributesAsync().Wait();
using (Stream snapshotStream = snapshot1.OpenReadAsync().Result)
{
snapshotStream.Seek(0, SeekOrigin.End);
TestHelper.AssertStreamsAreEqual(originalData, snapshotStream);
}
List <IListBlobItem> blobs =
container.ListBlobsSegmentedAsync(null, true, BlobListingDetails.All, null, null, null, null)
.Result
.Results
.ToList();
Assert.AreEqual(4, blobs.Count);
AssertAreEqual(snapshot1, (CloudBlob)blobs[0]);
AssertAreEqual(snapshot2, (CloudBlob)blobs[1]);
AssertAreEqual(blob, (CloudBlob)blobs[2]);
AssertAreEqual(snapshotCopy, (CloudBlob)blobs[3]);
}
finally
{
container.DeleteIfExistsAsync().Wait();
}
}
public void CloudBlobSnapshotAPM()
{
CloudBlobContainer container = GetRandomContainerReference();
try
{
container.Create();
MemoryStream originalData = new MemoryStream(GetRandomBuffer(1024));
CloudAppendBlob appendBlob = container.GetAppendBlobReference(BlobName);
appendBlob.CreateOrReplace();
appendBlob.AppendBlock(originalData, null);
CloudBlob blob = container.GetBlobReference(BlobName);
blob.FetchAttributes();
IAsyncResult result;
using (AutoResetEvent waitHandle = new AutoResetEvent(false))
{
result = blob.BeginSnapshot(ar => waitHandle.Set(), null);
waitHandle.WaitOne();
CloudBlob snapshot1 = blob.EndSnapshot(result);
Assert.AreEqual(blob.Properties.ETag, snapshot1.Properties.ETag);
Assert.AreEqual(blob.Properties.LastModified, snapshot1.Properties.LastModified);
Assert.IsTrue(snapshot1.IsSnapshot);
Assert.IsNotNull(snapshot1.SnapshotTime, "Snapshot does not have SnapshotTime set");
Assert.AreEqual(blob.Uri, snapshot1.Uri);
Assert.AreNotEqual(blob.SnapshotQualifiedUri, snapshot1.SnapshotQualifiedUri);
Assert.AreNotEqual(snapshot1.Uri, snapshot1.SnapshotQualifiedUri);
Assert.IsTrue(snapshot1.SnapshotQualifiedUri.Query.Contains("snapshot"));
result = blob.BeginSnapshot(ar => waitHandle.Set(), null);
waitHandle.WaitOne();
CloudBlob snapshot2 = blob.EndSnapshot(result);
Assert.IsTrue(snapshot2.SnapshotTime.Value > snapshot1.SnapshotTime.Value);
snapshot1.FetchAttributes();
snapshot2.FetchAttributes();
blob.FetchAttributes();
AssertAreEqual(snapshot1.Properties, blob.Properties);
CloudBlob snapshotCopy = container.GetBlobReference("blob2");
result = snapshotCopy.BeginStartCopy(snapshot1.Uri, null, null, null, null, ar => waitHandle.Set(), null);
waitHandle.WaitOne();
snapshotCopy.EndStartCopy(result);
WaitForCopy(snapshotCopy);
Assert.AreEqual(CopyStatus.Success, snapshotCopy.CopyState.Status);
result = snapshot1.BeginOpenRead(ar => waitHandle.Set(), null);
waitHandle.WaitOne();
using (Stream snapshotStream = snapshot1.EndOpenRead(result))
{
snapshotStream.Seek(0, SeekOrigin.End);
TestHelper.AssertStreamsAreEqual(originalData, snapshotStream);
}
result = appendBlob.BeginCreateOrReplace(ar => waitHandle.Set(), null);
waitHandle.WaitOne();
appendBlob.EndCreateOrReplace(result);
result = blob.BeginFetchAttributes(ar => waitHandle.Set(), null);
waitHandle.WaitOne();
blob.EndFetchAttributes(result);
result = snapshot1.BeginOpenRead(ar => waitHandle.Set(), null);
waitHandle.WaitOne();
using (Stream snapshotStream = snapshot1.EndOpenRead(result))
{
snapshotStream.Seek(0, SeekOrigin.End);
TestHelper.AssertStreamsAreEqual(originalData, snapshotStream);
}
List <IListBlobItem> blobs = container.ListBlobs(null, true, BlobListingDetails.All, null, null).ToList();
Assert.AreEqual(4, blobs.Count);
AssertAreEqual(snapshot1, (CloudBlob)blobs[0]);
AssertAreEqual(snapshot2, (CloudBlob)blobs[1]);
AssertAreEqual(blob, (CloudBlob)blobs[2]);
AssertAreEqual(snapshotCopy, (CloudBlob)blobs[3]);
}
}
finally
{
container.DeleteIfExists();
}
}