public async Task StartAsync(CancellationToken cancellationToken)
{
ThrowIfDisposed();
if (_watcher != null && _watcher.EnableRaisingEvents)
{
throw new InvalidOperationException("The listener has already been started.");
}
if (string.IsNullOrEmpty(_config.RootPath) || !Directory.Exists(_config.RootPath))
{
throw new InvalidOperationException(string.Format("Path '{0}' is invalid. FilesConfiguration.RootPath must be set to a valid directory location.", _config.RootPath));
}
CreateFileWatcher();
FileProcessorFactoryContext context = new FileProcessorFactoryContext(_config, _attribute, _triggerExecutor, _trace);
_processor = _config.ProcessorFactory.CreateFileProcessor(context);
ExecutionDataflowBlockOptions options = new ExecutionDataflowBlockOptions
{
BoundedCapacity = _processor.MaxQueueSize,
MaxDegreeOfParallelism = _processor.MaxDegreeOfParallelism,
};
_workQueue = new ActionBlock<FileSystemEventArgs>(async (e) => await ProcessWorkItem(e), options);
// on startup, process any preexisting files that haven't been processed yet
ProcessFiles();
// Create a timer to cleanup processed files.
// The timer doesn't auto-reset. It will reset itself
// when we receive more file events
_cleanupTimer = new System.Timers.Timer()
{
AutoReset = false,
Interval = _rand.Next(5 * 1000, 8 * 1000)
};
_cleanupTimer.Elapsed += OnCleanupTimer;
_cleanupTimer.Start();
await Task.FromResult<bool>(true);
}
/// <summary>
/// Constructs a new instance
/// </summary>
/// <param name="context">The <see cref="FileProcessorFactoryContext"/></param>
public FileProcessor(FileProcessorFactoryContext context)
{
if (context == null)
{
throw new ArgumentNullException("context");
}
_config = context.Config;
_attribute = context.Attribute;
_executor = context.Executor;
string attributePath = _attribute.GetNormalizedPath();
_filePath = Path.Combine(_config.RootPath, attributePath);
JsonSerializerSettings settings = new JsonSerializerSettings
{
DateFormatHandling = DateFormatHandling.IsoDateFormat,
};
_serializer = JsonSerializer.Create(settings);
}
/// <summary>
/// Constructs a new instance
/// </summary>
/// <param name="context">The <see cref="FileProcessorFactoryContext"/></param>
public FileProcessor(FileProcessorFactoryContext context)
{
if (context == null)
{
throw new ArgumentNullException("context");
}
_config = context.Config;
_attribute = context.Attribute;
_executor = context.Executor;
string attributePath = _attribute.GetNormalizedPath();
_filePath = Path.Combine(_config.RootPath, attributePath);
JsonSerializerSettings settings = new JsonSerializerSettings
{
DateFormatHandling = DateFormatHandling.IsoDateFormat,
};
_serializer = JsonSerializer.Create(settings);
}
private FileProcessor CreateTestProcessor(FileTriggerAttribute attribute)
{
mockExecutor = new Mock<ITriggeredFunctionExecutor>(MockBehavior.Strict);
FileProcessorFactoryContext context = new FileProcessorFactoryContext(config, attribute, mockExecutor.Object, new TestTraceWriter());
return new FileProcessor(context);
}
public FileProcessor CreateFileProcessor(FileProcessorFactoryContext context)
{
return new FileProcessor(context);
}
public FileProcessor CreateFileProcessor(FileProcessorFactoryContext context)
{
return(new FileProcessor(context));
}
