/// <summary>
/// 刷新监控摄像头列表
/// </summary>
/// <returns></returns>
public SmcErr RefreshMonitorCamera()
{
NLogEx.LoggerEx logEx = new NLogEx.LoggerEx(log);
logEx.Trace("Enter: VideoMonitorManage.RefreshMonitorCamera.");
SmcErr err = new SmcErr();
//copy 一份,防止长时间占用锁
Dictionary<string, IVideoMonitor> monitorsDictionaryTemp = null;
if (this.monitorsOperateLock.TryEnterReadLock(CgwConst.ENTER_LOCK_WAIT_TIME))
{
try
{
monitorsDictionaryTemp = new Dictionary<string, IVideoMonitor>(monitorsDictionary);
}
catch (Exception e)
{
logEx.Error("RefreshMonitorCamera failed.Execption message:{0}", e.Message);
}
finally
{
this.monitorsOperateLock.ExitReadLock();
}
}
if (monitorsDictionaryTemp == null)
{
//记录日志,获取*监控平台的摄像头列表失败
logEx.Error("RefreshMonitorCamera from monitor failed.No any monitor.");
err.SetErrorNo(CgwError.ERR_REFRESH_MONITOR_CAMERA_FAIL);
return err;
}
//循环已加载的所有的监控平台,将所有摄像头和分组组成一个list返回
foreach (KeyValuePair<string, IVideoMonitor> monitor in monitorsDictionaryTemp)
{
IVideoMonitor videoMonitor = monitor.Value;
err = videoMonitor.RefreshMonitorCamera();
if (err.IsSuccess())
{
logEx.Info("RefreshMonitorCamera success.");
}
else
{
logEx.Error("RefreshMonitorCamera failed.");
err.SetErrorNo(CgwError.ERR_REFRESH_MONITOR_CAMERA_FAIL);
break;
}
}
return err;
}