Initial commit

Values/ReadingBase.cs

@@ -0,0 +1,99 @@
+using System;
+using System.Runtime.Serialization;
+
+namespace WeatherService.Values
+{
+    /// <summary>
+    /// Stores a single value reading from a device
+    /// </summary>
+    [DataContract]
+    [KnownType(typeof(TemperatureReading))]
+    [KnownType(typeof(WindDirectionReading))]
+    [KnownType(typeof(WindSpeedReading))]
+    [KnownType(typeof(RainReading))]
+    [KnownType(typeof(PressureReading))]
+    [KnownType(typeof(HumidityReading))]
+    public class ReadingBase : IComparable<ReadingBase>
+    {
+        #region Constructor
+
+        public ReadingBase(WeatherValueType valueType)
+        {
+            ValueType = valueType;
+        }
+
+        #endregion
+
+        #region Internal methods
+
+        internal void SetValue(double value)
+        {
+            Value = value;
+            ReadTime = DateTime.Now;
+        }
+
+        internal void SetValue(double value, DateTime readTime)
+        {
+            Value = value;
+            ReadTime = readTime;
+        }
+
+        #endregion
+
+        #region Properties
+
+        [DataMember]
+        public WeatherValueType ValueType { get; set; }
+
+        [DataMember]
+        public double Value { get; set; }
+
+        [DataMember]
+        public DateTime ReadTime { get; set; }
+
+        #endregion
+
+        #region Comparison
+
+        public int CompareTo(ReadingBase other)
+        {
+            double otherValue = other.Value;
+            double thisValue = Value;
+
+            if (otherValue > thisValue)
+                return -1;
+
+            if (otherValue.Equals(thisValue))
+                return 0;
+
+            return 1;
+        }
+
+        #endregion
+
+        #region Creation
+
+        public static ReadingBase CreateReading(WeatherValueType valueType)
+        {
+            switch (valueType)
+            {
+                case WeatherValueType.Temperature:
+                    return new TemperatureReading(valueType);
+                case WeatherValueType.Pressure:
+                    return new PressureReading(valueType);
+                case WeatherValueType.Humidity:
+                    return new HumidityReading(valueType);
+                case WeatherValueType.WindSpeed:
+                    return new WindSpeedReading(valueType);
+                case WeatherValueType.WindDirection:
+                    return new WindDirectionReading(valueType);
+                case WeatherValueType.Rain:
+                    return new RainReading(valueType);
+                default:
+                    throw new ArgumentOutOfRangeException("valueType");
+            }
+        }
+
+        #endregion
+    }
+}