private async void AskPersistDeviceAlarm(object state)
{
IOptionsSnapshot <CoreOptions> coreOptions =
this.serviceProvider.GetRequiredService <IOptionsSnapshot <CoreOptions> >();
IOptionsSnapshot <DeviceOptions> deviceOptions =
this.serviceProvider.GetRequiredService <IOptionsSnapshot <DeviceOptions> >();
using BjdireContext db = this.serviceProvider.GetRequiredService <BjdireContext>();
foreach (DeviceOptionsEntry d in deviceOptions.Value.Devices)
{
try
{
byte[] id = d.ComputeIdBinary();
string deviceId = BitConverter.ToString(id);
if (this.plcManager.PlcDictionary.TryGetValue(ByteString.CopyFrom(id), out PlcClient client))
{
this.logger.LogInformation("Ask alarm for {0}({1})", d.Id, d.Name);
GrpcAlarm alarm = await client
.GetAlarmAsync(
new GetAlarmRequest(),
DateTime.UtcNow.AddMilliseconds(
coreOptions.Value.DefaultReadTimeoutMillis))
.ConfigureAwait(false);
var m = new ModelAlarm
{
DeviceId = deviceId,
};
alarm.AssignTo(m);
ModelAlarm lastKnownAlarmInfo = (
from mm in db.Alarms
where mm.DeviceId == deviceId
orderby mm.Timestamp descending
select mm)
.FirstOrDefault();
if (lastKnownAlarmInfo == null)
{
lastKnownAlarmInfo = new ModelAlarm();
}
db.AlarmChanges.AddRange(ComputeAlarmChanges(deviceId, lastKnownAlarmInfo, m));
db.Alarms.Add(m);
}
else
{
this.logger.LogWarning(
"Failed to ask alarm for {0}({1}), currently offline.",
d.Id,
d.Name);
}
}
catch (RpcException e)
{
this.logger.LogWarning(e, "Failed to ask alarm for {0}({1})", d.Id, d.Name);
}
}
db.SaveChanges();
}
private static IEnumerable <ModelAlarmChange> ComputeAlarmChanges(
string deviceId,
ModelAlarm lastKnownAlarm,
ModelAlarm currentAlarm)
{
if (lastKnownAlarm.LowFlowRate != currentAlarm.LowFlowRate)
{
yield return(new ModelAlarmChange
{
DeviceId = deviceId,
Timestamp = currentAlarm.Timestamp,
Type = AlarmType.LowFlowRate,
Direction = currentAlarm.LowFlowRate
? AlarmChangeDirection.Appearance
: AlarmChangeDirection.Disappearance,
});
}
if (lastKnownAlarm.HighHeaterPressure != currentAlarm.HighHeaterPressure)
{
yield return(new ModelAlarmChange
{
DeviceId = deviceId,
Timestamp = currentAlarm.Timestamp,
Type = AlarmType.HighHeaterPressure,
Direction = currentAlarm.HighHeaterPressure
? AlarmChangeDirection.Appearance
: AlarmChangeDirection.Disappearance,
});
}
if (lastKnownAlarm.LowHeaterPressure != currentAlarm.LowHeaterPressure)
{
yield return(new ModelAlarmChange
{
DeviceId = deviceId,
Timestamp = currentAlarm.Timestamp,
Type = AlarmType.LowHeaterPressure,
Direction = currentAlarm.LowHeaterPressure
? AlarmChangeDirection.Appearance
: AlarmChangeDirection.Disappearance,
});
}
if (lastKnownAlarm.NoPower != currentAlarm.NoPower)
{
yield return(new ModelAlarmChange
{
DeviceId = deviceId,
Timestamp = currentAlarm.Timestamp,
Type = AlarmType.NoPower,
Direction = currentAlarm.NoPower
? AlarmChangeDirection.Appearance
: AlarmChangeDirection.Disappearance,
});
}
if (lastKnownAlarm.HeaterOverloadedBroken != currentAlarm.HeaterOverloadedBroken)
{
yield return(new ModelAlarmChange
{
DeviceId = deviceId,
Timestamp = currentAlarm.Timestamp,
Type = AlarmType.HeaterOverloadedBroken,
Direction = currentAlarm.HeaterOverloadedBroken
? AlarmChangeDirection.Appearance
: AlarmChangeDirection.Disappearance,
});
}
if (lastKnownAlarm.ElectricalHeaterBroken != currentAlarm.ElectricalHeaterBroken)
{
yield return(new ModelAlarmChange
{
DeviceId = deviceId,
Timestamp = currentAlarm.Timestamp,
Type = AlarmType.ElectricalHeaterBroken,
Direction = currentAlarm.ElectricalHeaterBroken
? AlarmChangeDirection.Appearance
: AlarmChangeDirection.Disappearance,
});
}
}
