public TestContext()
{
// data
UtcNow = new DateTimeOffset(2015, 1, 2, 3, 4, 5, 6, TimeSpan.Zero);
Content = "foobar";
Container = TestSupport.GetTestContainer();
UploadRequest = new UploadRequest
{
ConnectionString = TestSupport.ConnectionString,
Container = Container,
ContentType = "text/plain",
PathFormat = "testpath/{0}.txt",
UploadDirect = true,
UploadLatest = true,
Stream = new MemoryStream(Encoding.UTF8.GetBytes(Content)),
Trace = TextWriter.Null
};
GetLatestRequest = new GetLatestRequest
{
ConnectionString = UploadRequest.ConnectionString,
Container = UploadRequest.Container,
PathFormat = UploadRequest.PathFormat,
Trace = TextWriter.Null
};
// dependencies
SystemTime = new Mock<ISystemTime>();
PathBuilder = new PathBuilder();
// setup
SystemTime.Setup(x => x.UtcNow).Returns(() => UtcNow);
// target
Target = new Client(SystemTime.Object, PathBuilder);
}
public async Task<UriResult> GetLatestUriResultAsync(GetLatestRequest request)
{
var context = new CloudContext(request.ConnectionString, request.Container);
var latestPath = _pathBuilder.GetLatest(request.PathFormat);
var latestBlob = context.BlobContainer.GetBlockBlobReference(latestPath);
if (!await latestBlob.ExistsAsync())
{
return null;
}
return new UriResult
{
Uri = latestBlob.Uri,
ETag = latestBlob.Properties.ETag
};
}
public Uri GetLatestUri(GetLatestRequest request)
{
var context = new CloudContext(request.ConnectionString, request.Container);
var latestPath = _pathBuilder.GetLatest(request.PathFormat);
var latestBlob = context.BlobContainer.GetBlockBlobReference(latestPath);
return latestBlob.Uri;
}
public async Task<StreamResult> GetLatestStreamAsync(GetLatestRequest request)
{
var context = new CloudContext(request.ConnectionString, request.Container);
var latestPath = _pathBuilder.GetLatest(request.PathFormat);
var latestBlob = context.BlobContainer.GetBlockBlobReference(latestPath);
try
{
var stream = await latestBlob.OpenReadAsync();
return new StreamResult
{
Stream = stream,
ETag = latestBlob.Properties.ETag,
ContentMD5 = latestBlob.Properties.ContentMD5
};
}
catch (StorageException e)
{
if (e.RequestInformation.HttpStatusCode == 404)
{
request.Trace.WriteLine($"The stream could not be found due to the following error: {e.RequestInformation.HttpStatusMessage}");
return null;
}
throw;
}
}
public async Task<UploadResult> UploadAsync(UniqueUploadRequest request)
{
if (!request.Stream.CanRead)
{
throw new ArgumentException("The provided stream must be readable.");
}
using (request.Stream)
{
// get the current
var getLatestRequest = new GetLatestRequest
{
ConnectionString = request.ConnectionString,
Container = request.Container,
PathFormat = request.PathFormat,
Trace = request.Trace
};
request.Trace.Write("Gettings the existing latest...");
string etag = null;
using (var currentResult = await _innerClient.GetLatestStreamAsync(getLatestRequest))
{
// return nothing if the streams are equivalent
if (currentResult != null)
{
if (!request.Stream.CanSeek)
{
throw new ArgumentException("The provided stream must be seekable");
}
// seek to the beginning for calculating the hash
request.Stream.Seek(0, SeekOrigin.Begin);
var contentMD5 = await GetStreamContentMD5(request.Stream);
if (contentMD5 == currentResult.ContentMD5)
{
request.Trace.WriteLine(" exactly the same! No upload required.");
return null;
}
if (request.EqualsAsync != null)
{
// seek to the beginning for comparing the content
request.Stream.Seek(0, SeekOrigin.Begin);
if (await request.EqualsAsync(currentResult))
{
request.Trace.WriteLine(" equivalent! No upload required.");
return null;
}
}
etag = currentResult.ETag;
request.Trace.WriteLine(" different! The provided content will be uploaded.");
}
else
{
request.Trace.WriteLine(" non-existent! The provided content will be uploaded.");
}
}
// Seek to the beginning for uploading the blob.
request.Stream.Seek(0, SeekOrigin.Begin);
var uploadRequest = new UploadRequest
{
ConnectionString = request.ConnectionString,
ETag = etag,
UseETags = request.UseETag,
Stream = request.Stream,
PathFormat = request.PathFormat,
Container = request.Container,
Trace = request.Trace,
UploadDirect = request.UploadDirect,
UploadLatest = true,
ContentType = request.ContentType,
Type = request.Type
};
return await _innerClient.UploadAsync(uploadRequest);
}
}
public TestContext()
{
// data
UtcNow = new DateTimeOffset(2015, 1, 2, 3, 4, 5, 6, TimeSpan.Zero);
Content = "newContent";
Container = TestSupport.GetTestContainer();
EqualsAsyncCalled = false;
UniqueUploadRequest = new UniqueUploadRequest
{
ConnectionString = TestSupport.ConnectionString,
Container = Container,
ContentType = "text/plain",
PathFormat = "testpath/{0}.txt",
UploadDirect = true,
Stream = new MemoryStream(Encoding.UTF8.GetBytes(Content)),
Trace = TextWriter.Null,
EqualsAsync = async x =>
{
EqualsAsyncCalled = true;
var actualContent = await new StreamReader(x.Stream).ReadLineAsync();
return actualContent == Content;
}
};
GetLatestRequest = new GetLatestRequest
{
ConnectionString = UniqueUploadRequest.ConnectionString,
Container = UniqueUploadRequest.Container,
PathFormat = UniqueUploadRequest.PathFormat,
Trace = TextWriter.Null
};
// dependencies
SystemTime = new Mock<ISystemTime>();
PathBuilder = new PathBuilder();
Client = new Client(SystemTime.Object, PathBuilder);
// setup
SystemTime.Setup(x => x.UtcNow).Returns(() => UtcNow);
// target
Target = new UniqueClient(Client);
}
