public async Task ProcessEventAsync(ProcessEventArgs args)
{
var message = args.GetSerializedMessage();
foreach (Reading reading in message.Readings)
{
if (this._cache.TryGetValue(reading.SensorId, out SensorAlarmRules sensorAlarmRules))
{
// Get sensor alarm rule statuses against sensor reading
IEnumerable <AlarmRuleStatus> transientStatuses =
SensorAlarmRules.GetAlarmRuleStatuses(reading.SensorId, sensorAlarmRules.AlarmRules, reading.Value.Value);
// Get cached alarm rule statuses
IEnumerable <AlarmRuleStatus> persistedStatuses =
transientStatuses.Select(x => this._cache.GetValue <AlarmRuleStatus>(x.ToString()));
var changedStatuses = SensorAlarmRules.GetAlarmRuleStatusChanges(persistedStatuses, transientStatuses, this._logger);
if (changedStatuses.Count() > 0)
{
await this._alarmNotificationService
.SendAlarmRuleStatusNotificationsAsync(changedStatuses, reading.Value.Value, message.Timestamp, message.DeviceId);
foreach (var status in changedStatuses)
{
this._cache.SetValue(status.ToString(), status);
}
}
}
}
}
public void active_when_reading_value_less_than_alarm_rule_condition_value()
{
var alarmRules = new List <AlarmRule>
{
new AlarmRule(Guid.NewGuid(), "Equals", new List <Condition>()
{
new Condition("<", string.Empty, 100),
})
};
var status = SensorAlarmRules.GetAlarmRuleStatuses(1, alarmRules, 99);
Assert.True(status.All(x => x.AlarmActive));
}