Initial commit

Devices/RainDevice.cs

@@ -0,0 +1,111 @@
+using System.Runtime.Serialization;
+using OneWireAPI;
+using WeatherService.Values;
+
+namespace WeatherService.Devices
+{
+    [DataContract]
+    public class RainDevice : DeviceBase
+    {
+        #region Member variables
+
+        private readonly Value _recentValue;
+
+        private readonly uint _clearedCount;        // Counter at least clear
+
+        private uint _lastCount;                    // Counter from last check
+        private uint _startupCount;                 // Counter at startup
+        private bool _initialized;
+
+        #endregion
+
+        #region Constructor
+
+        public RainDevice(Session session, owDevice device)
+            : base(session, device, DeviceType.Rain)
+        {
+            // TODO - Read the count as of the last counter clearing
+            _clearedCount = 150;
+
+            // Get a reference to the device
+            owDeviceFamily1D counter = (owDeviceFamily1D) _device;
+
+            // Get the current counter
+            _lastCount = counter.GetCounter(15);
+
+            // Setup the rain value
+            _recentValue = new Value(WeatherValueType.Rain, this);
+            _valueList.Add(WeatherValueType.Rain, _recentValue);
+        }
+
+        #endregion
+
+        #region Internal methods
+
+        internal override void RefreshCache()
+        {
+            double recentRain = ReadRecentRainfall();
+
+            _recentValue.SetValue(recentRain);
+
+            base.RefreshCache();
+        }
+
+        internal double ReadSessionRainfall()
+        {
+            // Get a reference to the device
+            owDeviceFamily1D counter = (owDeviceFamily1D) _device;
+
+            // If we haven't initialized then do it now
+            if (!_initialized)
+            {
+                // Get the current counter
+                _startupCount = counter.GetCounter(15);
+
+                _initialized = true;
+            }
+
+            // Get the current counter
+            uint currentCount = counter.GetCounter(15);
+
+            // Get the amount of rain since the last check
+            return (currentCount - _startupCount) * 0.2;
+        }
+
+        internal double ReadRecentRainfall()
+        {
+            // Get a reference to the device
+            owDeviceFamily1D counter = (owDeviceFamily1D) _device;
+
+            // Get the current counter
+            uint currentCount = counter.GetCounter(15);
+
+            // Get the amount of rain since the last check
+            double rainValue = (currentCount - _lastCount) * 0.2;
+
+            // Store the last counter
+            _lastCount = currentCount;
+            
+            return rainValue;
+        }
+
+        internal double ReadTotalRainfall()
+        {
+            // Get a reference to the device
+            owDeviceFamily1D counter = (owDeviceFamily1D) _device;
+
+            // Get the current counter
+            uint currentCount = counter.GetCounter(15);
+
+            // Get the amount of rain since the last check
+            double rainValue = (currentCount - _clearedCount) * 0.2F;
+
+            // Store the last counter
+            _lastCount = currentCount;
+
+            return rainValue;
+        }
+
+        #endregion
+    }
+}