private void RestoreFromCache(IThermometerCache cache)
{
double.TryParse(GetKey(cache, CacheKeys.Average), out _average);
int.TryParse(GetKey(cache, CacheKeys.Count), out _count);
double.TryParse(GetKey(cache, CacheKeys.Max), out _max);
double.TryParse(GetKey(cache, CacheKeys.Min), out _min);
double.TryParse(GetKey(cache, CacheKeys.Sum), out _sum);
}
private void StoreInCache(IThermometerCache cache)
{
StoreKey(cache, CacheKeys.Average, _average.ToString());
StoreKey(cache, CacheKeys.Count, _count.ToString());
StoreKey(cache, CacheKeys.Max, _max.ToString());
StoreKey(cache, CacheKeys.Min, _min.ToString());
StoreKey(cache, CacheKeys.Sum, _sum.ToString());
}
public TemperatureCalculations(IThermometerCache cache)
{
if (cache != null)
{
_cache = cache;
RestoreFromCache(cache);
}
}
private string GetKey(IThermometerCache cache, string key)
{
string value = string.Empty;
var result = cache.TryGetValue(key, out value);
if (!result && key == CacheKeys.Min)
{
value = Convert.ToDouble(int.MaxValue).ToString();
}
return(value);
}
private void StoreKey(IThermometerCache cache, string key, string value)
{
// Save data in cache.
cache.Set(key, value);
}
