/// <summary>
/// Process a single event.
/// </summary>
/// <param name="factory"></param>
/// <param name="e"></param>
/// <returns></returns>
private async Task ProcessEventAsync(IConnectionFactory factory, IFileSystemEvent e)
{
// try process as created.
await TryProcessAddedAsync(factory, e).ConfigureAwait(false);
// try process as deleted.
await TryProcessRemovedAsync(factory, e).ConfigureAwait(false);
// try process as changed.
await TryProcessTouchedAsync(factory, e).ConfigureAwait(false);
// process as a renamed event
await TryProcessRenamedAsync(factory, e).ConfigureAwait(false);
}
/// <summary>
/// Try and process a changed file event.
/// </summary>
/// <param name="factory"></param>
/// <param name="e"></param>
/// <returns></returns>
private async Task TryProcessTouchedAsync(IConnectionFactory factory, IFileSystemEvent e)
{
try
{
if (e.Action != EventAction.Touched)
{
return;
}
await ProcessTouchedAsync(factory, e, _token).ConfigureAwait(false);
}
catch
{
Logger.Error($"There was an error trying to process changed game event {e.FullName}!");
// the exception is logged
throw;
}
}
/// <summary>
/// Add a file event to the list.
/// </summary>
/// <param name="fileSystemEventArgs"></param>
/// <param name="token"></param>
public async Task AddAsync(IFileSystemEvent fileSystemEventArgs, CancellationToken token)
{
await Task.Run(() =>
{
lock (_lockEvents)
{
try
{
if (_token.IsCancellationRequested)
{
return;
}
_currentEvents.Add(fileSystemEventArgs);
}
catch (Exception e)
{
Logger.Exception(e);
}
}
}, token);
}
/// <summary>
/// Try and process a changed file event.
/// </summary>
/// <param name="factory"></param>
/// <param name="e"></param>
/// <returns></returns>
private async Task TryProcessRenamedAsync(IConnectionFactory factory, IFileSystemEvent e)
{
try
{
if (e.Action != EventAction.Renamed)
{
return;
}
var rfse = e as IRenamedFileSystemEvent;
// we have both a new and old name...
await ProcessRenamedAsync(factory, rfse, _token).ConfigureAwait(false);
}
catch
{
var rfse = e as IRenamedFileSystemEvent;
Logger.Error($"There was an error trying to rename {rfse?.FullName ?? "???"} to {rfse?.PreviousFullName ?? "???"}!");
throw;
}
}
/// <summary> /// Process a created event /// </summary> /// <param name="factory"></param> /// <param name="fileSystemEvent"></param> /// <param name="token"></param> protected abstract Task ProcessTouchedAsync(IConnectionFactory factory, IFileSystemEvent fileSystemEvent, CancellationToken token);
