private async Task BasicStoragePageBlobOperationsAsync()
{
WriteLine("-- Testing PageBlob --");
const string PageBlobName = "samplepageblob";
// Create a blob client for interacting with the blob service.
CloudBlobClient blobClient = StorageAccount.CreateCloudBlobClient();
// Create a container for organizing blobs within the storage account.
WriteLine("1. Creating Container");
CloudBlobContainer container = blobClient.GetContainerReference("democontainerpageblob");
await container.CreateIfNotExistsAsync();
// Create a page blob in the newly created container.
WriteLine("2. Creating Page Blob");
CloudPageBlob pageBlob = container.GetPageBlobReference(PageBlobName);
await pageBlob.CreateAsync(512 * 2 /*size*/); // size needs to be multiple of 512 bytes
// Write to a page blob
WriteLine("2. Write to a Page Blob");
byte[] samplePagedata = new byte[512];
Random random = new Random();
random.NextBytes(samplePagedata);
await pageBlob.UploadFromByteArrayAsync(samplePagedata, 0, samplePagedata.Length);
// List all blobs in this container. Because a container can contain a large number of blobs the results
// are returned in segments (pages) with a maximum of 5000 blobs per segment. You can define a smaller size
// using the maxResults parameter on ListBlobsSegmentedAsync.
WriteLine("3. List Blobs in Container");
BlobContinuationToken token = null;
do
{
BlobResultSegment resultSegment = await container.ListBlobsSegmentedAsync(token);
token = resultSegment.ContinuationToken;
foreach (IListBlobItem blob in resultSegment.Results)
{
// Blob type will be CloudBlockBlob, CloudPageBlob or CloudBlobDirectory
WriteLine(string.Format("{0} (type: {1}", blob.Uri, blob.GetType()));
}
} while (token != null);
// Read from a page blob
WriteLine("4. Read from a Page Blob");
int bytesRead = await pageBlob.DownloadRangeToByteArrayAsync(samplePagedata, 0, 0, samplePagedata.Length);
// Clean up after the demo
WriteLine("5. Delete page Blob");
await pageBlob.DeleteAsync();
// When you delete a container it could take several seconds before you can recreate a container with the same
// name - hence to enable you to run the demo in quick succession the container is not deleted. If you want
// to delete the container uncomment the line of code below.
WriteLine("6. Delete Container");
await container.DeleteAsync();
WriteLine("-- Test Complete --");
}
public void GetSnapshotBlobs()
{
string containerName = Utility.GenNameString("container");
string pageBlobName = Utility.GenNameString("page");
string blockBlobName = Utility.GenNameString("block");
string appendBlobName = Utility.GenNameString("append");
Test.Info("Create test container and blobs");
CloudBlobContainer container = blobUtil.CreateContainer(containerName);
try
{
CloudBlob pageBlob = blobUtil.CreatePageBlob(container, pageBlobName);
CloudBlob blockBlob = blobUtil.CreateBlockBlob(container, blockBlobName);
CloudBlob appendBlob = blobUtil.CreateAppendBlob(container, appendBlobName);
List <CloudBlob> blobs = new List <CloudBlob>();
pageBlob.FetchAttributes();
blockBlob.FetchAttributes();
appendBlob.FetchAttributes();
int minSnapshot = 1;
int maxSnapshot = 5;
int count = random.Next(minSnapshot, maxSnapshot);
int snapshotInterval = 1 * 1000;
Test.Info("Create random snapshot for specified blobs");
for (int i = 0; i < count; i++)
{
CloudAppendBlob snapshot = ((CloudAppendBlob)appendBlob).CreateSnapshot();
snapshot.FetchAttributes();
blobs.Add(snapshot);
Thread.Sleep(snapshotInterval);
}
blobs.Add(appendBlob);
count = random.Next(minSnapshot, maxSnapshot);
for (int i = 0; i < count; i++)
{
CloudBlockBlob snapshot = ((CloudBlockBlob)blockBlob).CreateSnapshot();
snapshot.FetchAttributes();
blobs.Add(snapshot);
Thread.Sleep(snapshotInterval);
}
blobs.Add(blockBlob);
count = random.Next(minSnapshot, maxSnapshot);
for (int i = 0; i < count; i++)
{
CloudPageBlob snapshot = ((CloudPageBlob)pageBlob).CreateSnapshot();
snapshot.FetchAttributes();
blobs.Add(snapshot);
Thread.Sleep(snapshotInterval);
}
blobs.Add(pageBlob);
Test.Assert(CommandAgent.GetAzureStorageBlob(string.Empty, containerName), Utility.GenComparisonData("Get-AzureStorageBlob with snapshot blobs", true));
Test.Assert(CommandAgent.Output.Count == blobs.Count, String.Format("Expect to retrieve {0} blobs, actually retrieved {1} blobs", blobs.Count, CommandAgent.Output.Count));
CommandAgent.OutputValidation(blobs);
}
finally
{
blobUtil.RemoveContainer(containerName);
}
}
private async Task Initialize()
{
RandomNameResolver nameResolver = new RandomNameResolver();
JobHostConfiguration hostConfiguration = new JobHostConfiguration()
{
NameResolver = nameResolver,
TypeLocator = new FakeTypeLocator(typeof(BlobBindingEndToEndTests)),
};
hostConfiguration.AddService <IWebJobsExceptionHandler>(new TestExceptionHandler());
Config = hostConfiguration;
StorageAccount = CloudStorageAccount.Parse(hostConfiguration.StorageConnectionString);
CloudBlobClient blobClient = StorageAccount.CreateCloudBlobClient();
BlobContainer = blobClient.GetContainerReference(nameResolver.ResolveInString(ContainerName));
Assert.False(await BlobContainer.ExistsAsync());
await BlobContainer.CreateAsync();
OutputBlobContainer = blobClient.GetContainerReference(nameResolver.ResolveInString(OutputContainerName));
CloudBlobContainer pageBlobContainer = blobClient.GetContainerReference(nameResolver.ResolveInString(PageBlobContainerName));
Assert.False(await pageBlobContainer.ExistsAsync());
await pageBlobContainer.CreateAsync();
CloudBlobContainer hierarchicalBlobContainer = blobClient.GetContainerReference(nameResolver.ResolveInString(HierarchicalBlobContainerName));
Assert.False(await hierarchicalBlobContainer.ExistsAsync());
await hierarchicalBlobContainer.CreateAsync();
CloudBlobContainer appendBlobContainer = blobClient.GetContainerReference(nameResolver.ResolveInString(AppendBlobContainerName));
Assert.False(await appendBlobContainer.ExistsAsync());
await appendBlobContainer.CreateAsync();
Host = new JobHost(hostConfiguration);
Host.Start();
// upload some test blobs
CloudBlockBlob blob = BlobContainer.GetBlockBlobReference("blob1");
await blob.UploadTextAsync(TestData);
blob = BlobContainer.GetBlockBlobReference("blob2");
await blob.UploadTextAsync(TestData);
blob = BlobContainer.GetBlockBlobReference("blob3");
await blob.UploadTextAsync(TestData);
blob = BlobContainer.GetBlockBlobReference("file1");
await blob.UploadTextAsync(TestData);
blob = BlobContainer.GetBlockBlobReference("file2");
await blob.UploadTextAsync(TestData);
blob = BlobContainer.GetBlockBlobReference("overwrite");
await blob.UploadTextAsync(TestData);
// add a couple hierarchical blob paths
blob = hierarchicalBlobContainer.GetBlockBlobReference("sub/blob1");
await blob.UploadTextAsync(TestData);
blob = hierarchicalBlobContainer.GetBlockBlobReference("sub/blob2");
await blob.UploadTextAsync(TestData);
blob = hierarchicalBlobContainer.GetBlockBlobReference("sub/sub/blob3");
await blob.UploadTextAsync(TestData);
blob = hierarchicalBlobContainer.GetBlockBlobReference("blob4");
await blob.UploadTextAsync(TestData);
byte[] bytes = new byte[512];
byte[] testBytes = Encoding.UTF8.GetBytes(TestData);
for (int i = 0; i < testBytes.Length; i++)
{
bytes[i] = testBytes[i];
}
CloudPageBlob pageBlob = pageBlobContainer.GetPageBlobReference("blob1");
await pageBlob.UploadFromByteArrayAsync(bytes, 0, bytes.Length);
pageBlob = pageBlobContainer.GetPageBlobReference("blob2");
await pageBlob.UploadFromByteArrayAsync(bytes, 0, bytes.Length);
CloudAppendBlob appendBlob = appendBlobContainer.GetAppendBlobReference("blob1");
await appendBlob.UploadTextAsync(TestData);
appendBlob = appendBlobContainer.GetAppendBlobReference("blob2");
await appendBlob.UploadTextAsync(TestData);
appendBlob = appendBlobContainer.GetAppendBlobReference("blob3");
await appendBlob.UploadTextAsync(TestData);
}