/// <summary>
/// Gets the last temperature reading for all devices
/// </summary>
/// <returns></returns>
public IEnumerable <DeviceTemperatureReadings> GetDevicesLastTemperatureReading()
{
try
{
List <DeviceTemperatureReadings> readings = new List <DeviceTemperatureReadings>();
var devices = DeviceFactory.Instance.Devices;
foreach (var device in devices)
{
try
{
// get's the next list item from the head for this device id
string json = redisCache.ListRange(device.DeviceId, 0, 1)[0];
var reading = Newtonsoft.Json.JsonConvert.DeserializeObject <TemperatureReading>(json);
DeviceTemperatureReadings deviceReading = new DeviceTemperatureReadings();
deviceReading.Device = device;
deviceReading.TemperatureReadings = new List <TemperatureReading>();
deviceReading.TemperatureReadings.Add(reading);
readings.Add(deviceReading);
}
catch
{
}
}
return(readings);
}
catch (Exception ex)
{
return(null);
}
}
/// <summary>
/// Gets the most recent temperature readings for each device.
/// </summary>
/// <param name="count"></param>
/// <returns></returns>
public List <DeviceTemperatureReadings> GetDevicesTemperatureReadings(int count)
{
// get the earliest time to return data for
List <DeviceTemperatureReadings> readings = new List <DeviceTemperatureReadings>();
var devices = DeviceFactory.Instance.Devices;
foreach (var device in devices)
{
DeviceTemperatureReadings tempList = new DeviceTemperatureReadings();
tempList.Device = device;
// get's the next list item from the head for this device id
var array = redisCache.ListRange(device.DeviceId, 0, count - 1);
List <TemperatureReading> list = new List <TemperatureReading>();
foreach (var s in array)
{
try
{
var o = JsonConvert.DeserializeObject <TemperatureReading>(s);
list.Add(o);
}
catch { }
}
tempList.TemperatureReadings = (from l in list orderby l.Time select l).ToList();
readings.Add(tempList);
}
return(readings);
}
