private void CancelDeviceAlarm(Device device, AlarmType alarmType)
{
using (var ctx = new DatabaseContext())
{
DeviceAlarm deviceAlarm = ctx.Alarms.FirstOrDefault(alarm => alarm.DeviceId == device.Id && alarm.AlarmType == alarmType);
if (deviceAlarm != null)
{
ctx.Alarms.Remove(deviceAlarm);
ctx.SaveChanges();
logger.Info("Device {0}'s {1} returned to normal status.", device.Name, alarmType);
}
}
}
private void SetDeviceOnAlarm(Device device, AlarmType alarmType)
{
using (var ctx = new DatabaseContext())
{
DeviceAlarm deviceAlarm = ctx.Alarms.FirstOrDefault(alarm => alarm.DeviceId == device.Id && alarm.AlarmType == alarmType);
if (deviceAlarm == null)
{
var alarm = new DeviceAlarm
{
AlarmType = alarmType,
DeviceId = device.Id,
DeviceName = device.Name,
StartDttm = DateTime.Now
};
ctx.Alarms.Add(alarm);
ctx.SaveChanges();
logger.Info("Device {0}'s {1} is in alarm status.", device.Name, alarmType);
}
}
}