private void WatcherOnChanged(object sender, FileSystemEventArgs e)
{
if (e.ChangeType == WatcherChangeTypes.Created)
{
// 文件格式范例 172.31.108.248_01_20170905143220480_FACE_ALARM.jpg
string[] vals = e.Name.Split('_');
if (vals.Length >= 3)
{
if (e.FullPath.EndsWith(".jpg") || e.FullPath.EndsWith(".bmp") ||
e.FullPath.EndsWith(".png"))
{
string cameraIp = vals[0];
if (cameraIp.Contains("\\"))
{
cameraIp = cameraIp.Substring(0, cameraIp.IndexOf("\\"));
}
string fileTime = DateTime.Now.ToString("yyyyMMddHHmmss");
Thread.Sleep(50);
if (e.FullPath.ToLower().Contains("face"))
{
var fileFace = new FileFaceImage(fileTime, DateTime.Now, cameraIp, e.FullPath);
Log4NetHelper.Instance.Info("抓拍人脸图像文件:" + cameraIp + "," + Path.GetFileName(e.FullPath));
ResultFileQueue.AddToQueue(fileFace);
}
else
{
Log4NetHelper.Instance.Debug("抓拍人脸图像文件忽略:" + e.FullPath);
}
}
}
}
}
private void StartFileTask()
{
if (_taskFile != null)
{
return;
}
_taskFile = Task.Run(() =>
{
while (true)
{
try
{
// 取消任务判断
if (_tokenFileWatch.IsCancellationRequested)
{
break;
}
FileFaceImage message = ResultFileQueue.GetFromQueue();
if (message == null)
{
Thread.Sleep(1000);
continue;
}
else
{
if (ReceiveFaceEvent != null)
{
// 该处理确保图像文件已经完成，可以进行读取操作
Thread.Sleep(500);
ReceiveFaceEvent(message);
}
}
}
catch (Exception ex)
{
Log4NetHelper.Instance.Error("从队列发送Kafka数据错误:" + (ex.InnerException != null ? ex.InnerException.Message : ex.Message));
}
Thread.Sleep(1000);
}
}, _tokenFileWatch.Token);
}
