public async Task ExecuteAsync(
int bucketNumber,
int bucketCount,
CancellationToken token)
{
DateTimeOffset?newCursorValue;
do
{
await _cursor.Load(token);
newCursorValue = await ProcessBatchAsync(bucketNumber, bucketCount, token);
if (newCursorValue.HasValue)
{
_cursor.Value = newCursorValue.Value;
_logger.LogInformation(
"Moving cursor {BucketNumber}/{BucketCount} forward to {NewCursorValue}.",
bucketNumber,
bucketCount,
newCursorValue.Value);
await _cursor.Save(token);
}
}while (newCursorValue.HasValue);
}
public async void CanReadWhatItSaves()
{
StorageContent savedContent = null;
var storageMock = CreateStorageMock();
storageMock
.Protected().Setup <Task>("OnSave", ItExpr.IsAny <Uri>(), ItExpr.IsAny <StorageContent>(), ItExpr.IsAny <CancellationToken>())
.Callback <Uri, StorageContent, CancellationToken>((uri, content, token) => { savedContent = content; })
.Returns(Task.FromResult(0));
storageMock
.Protected().Setup <Task <StorageContent> >("OnLoad", ItExpr.IsAny <Uri>(), ItExpr.IsAny <CancellationToken>())
.Returns <Uri, CancellationToken>((uri, token) => Task.FromResult(savedContent));
DateTimeOffset defaultValue = new DateTimeOffset(2017, 5, 5, 17, 8, 42, TimeSpan.Zero);
DateTimeOffset actualValue = new DateTimeOffset(2017, 5, 5, 17, 49, 42, TimeSpan.Zero);
var durableCursorSaver = new DurableCursor(new Uri("http://localhost/cursor.json"), storageMock.Object, defaultValue);
durableCursorSaver.Value = actualValue;
await durableCursorSaver.Save(CancellationToken.None);
var durableCursorLoader = new DurableCursor(new Uri("http://localhost/cursor.json"), storageMock.Object, defaultValue);
await durableCursorLoader.Load(CancellationToken.None);
Assert.Equal(actualValue, durableCursorLoader.Value);
}
public static void CreateNewCursor(string[] args)
{
IDictionary <string, string> arguments = GetArguments(args, 0);
StorageFactory storageFactory = CreateStorageFactory(arguments, verbose: true);
Storage storage = storageFactory.Create();
DurableCursor cursor = new DurableCursor(storage.ResolveUri("cursor.json"), storage, GetDefaultValue(arguments));
cursor.Load().Wait();
cursor.Save().Wait();
}
public async void UsesDefaultValue()
{
var storageMock = CreateStorageMock();
storageMock
.Protected().Setup <Task>("OnLoad", ItExpr.IsAny <Uri>(), ItExpr.IsAny <CancellationToken>())
.Returns(Task.FromResult <StorageContent>(null));
DateTimeOffset defaultValue = new DateTimeOffset(2017, 5, 5, 17, 8, 42, TimeSpan.Zero);
var durableCursor = new DurableCursor(new Uri("http://localhost/cursor.json"), storageMock.Object, defaultValue);
await durableCursor.Load(CancellationToken.None);
Assert.Equal(defaultValue, durableCursor.Value);
}
public async void LoadsFromStorage()
{
var storageMock = CreateStorageMock();
storageMock
.Protected().Setup <Task <StorageContent> >("OnLoad", ItExpr.IsAny <Uri>(), ItExpr.IsAny <CancellationToken>())
.Returns(Task.FromResult <StorageContent>(null))
.Verifiable();
var durableCursor = new DurableCursor(new Uri("http://localhost/cursor.json"), storageMock.Object, new DateTimeOffset(2017, 5, 5, 17, 8, 42, TimeSpan.Zero));
await durableCursor.Load(CancellationToken.None);
storageMock.Verify();
}
