private void SendChanges()
{
FileWatcherEventArgs args;
lock (this)
{
args = _nextArgs;
_nextArgs = null;
}
if (args != null && (args.NewFiles.Length > 0 || args.ChangedFiles.Length > 0 || args.DeletedFiles.Length > 0))
{
OnChanged(args);
}
}
protected virtual void OnChanged(FileWatcherEventArgs args)
{
Changed?.Invoke(this, args);
if (!string.IsNullOrEmpty(_setting.CallbackUrl))
{
var request = WebRequest.Create(_setting.CallbackUrl);
if (!string.IsNullOrEmpty(_setting.CallbackMethod))
{
request.Method = _setting.CallbackMethod;
}
if (!request.Method.Equals("GET", StringComparison.InvariantCultureIgnoreCase))
{
request.ContentType = "application/json";
var dataContractJsonSerializer = new DataContractJsonSerializer(args.GetType(), new DataContractJsonSerializerSettings {
SerializeReadOnlyTypes = true
});
using (var requestStream = request.GetRequestStream())
{
dataContractJsonSerializer.WriteObject(requestStream, args);
}
}
request.GetResponseAsync();
}
}
void OnChanged(object source, FileSystemEventArgs e)
{
if (!string.IsNullOrWhiteSpace(_setting.SearchRegExPattern))
{
if (!Regex.IsMatch(e.Name, _setting.SearchRegExPattern))
{
return;
}
}
lock (this)
{
if (_nextArgs == null)
{
_nextArgs = new FileWatcherEventArgs()
{
ChangedFiles = new string[0], DeletedFiles = new string[0], NewFiles = new string[0]
}
}
;
if ((e.ChangeType & WatcherChangeTypes.Created) == WatcherChangeTypes.Created || (e.ChangeType & WatcherChangeTypes.Renamed) == WatcherChangeTypes.Renamed)
{
if (e is RenamedEventArgs renamedEventArgs)
{
if (_nextArgs.NewFiles.Contains(renamedEventArgs.OldFullPath))
{
_nextArgs.NewFiles = _nextArgs.NewFiles.Where(n => n != renamedEventArgs.OldFullPath).ToArray(); // Delete from new files
}
if (_nextArgs.ChangedFiles.Contains(renamedEventArgs.OldFullPath))
{
_nextArgs.ChangedFiles = _nextArgs.ChangedFiles.Where(n => n != renamedEventArgs.OldFullPath).ToArray(); // Delete from changed files
}
if (_setting.NotifiyDelete)
{
_nextArgs.DeletedFiles = _nextArgs.DeletedFiles.Concat(new string[] { renamedEventArgs.OldFullPath }).Distinct().ToArray();
}
}
if (_nextArgs.DeletedFiles.Contains(e.FullPath))
{
_nextArgs.DeletedFiles = _nextArgs.DeletedFiles.Where(n => n != e.FullPath).ToArray(); // Delete from deleted files
}
_nextArgs.NewFiles = _nextArgs.NewFiles.Concat(new string[] { e.FullPath }).Distinct().ToArray();
}
if ((e.ChangeType & WatcherChangeTypes.Changed) == WatcherChangeTypes.Changed)
{
if (!_nextArgs.NewFiles.Contains(e.FullPath))
{
_nextArgs.ChangedFiles = _nextArgs.ChangedFiles.Concat(new string[] { e.FullPath }).Distinct().ToArray();
}
}
if ((e.ChangeType & WatcherChangeTypes.Deleted) == WatcherChangeTypes.Deleted)
{
bool wasNew = false;
if (_nextArgs.NewFiles.Contains(e.FullPath))
{
_nextArgs.NewFiles = _nextArgs.NewFiles.Where(n => n != e.FullPath).ToArray(); // Delete from new files
wasNew = true;
}
if (_nextArgs.ChangedFiles.Contains(e.FullPath))
{
_nextArgs.ChangedFiles = _nextArgs.ChangedFiles.Where(n => n != e.FullPath).ToArray(); // Delete from changed files
}
if (!wasNew)
{
_nextArgs.DeletedFiles = _nextArgs.DeletedFiles.Concat(new string[] { e.FullPath }).Distinct().ToArray();
}
}
if (_setting.DelayInMS > 0 || _setting.DelayInMS == null)
{
if (_changeTimer == null)
{
_changeTimer = new Timer();
_changeTimer.Interval = _setting.DelayInMS ?? 500;
_changeTimer.AutoReset = false;
_changeTimer.Elapsed += _changeTimer_Elapsed;
_changeTimer.Start();
}
}
}
if (_setting.DelayInMS <= 0)
{
SendChanges();
}
}
