public T GetCachedData <T>(Func <T> dataGetter, string key, CoordinatedResetCacheTime resetCacheTime = CoordinatedResetCacheTime.OnHour)
{
return(GetCachedDataAsync(() => Task.FromResult(dataGetter.Invoke()), key, resetCacheTime).Result);
}
public async Task <T> GetCachedDataAsync <T>(Func <Task <T> > dataGetter, string key, CoordinatedResetCacheTime resetCacheTime = CoordinatedResetCacheTime.OnHour)
{
return(await GetCachedDataAsync(token => dataGetter.Invoke(), key, CancellationToken.None, resetCacheTime));
}
public T GetCachedData <T>(Func <CancellationToken, T> dataGetter, string key, CancellationToken cancellationToken, CoordinatedResetCacheTime resetCacheTime = CoordinatedResetCacheTime.OnHour)
{
return(GetCachedDataAsync(token => Task.FromResult(dataGetter.Invoke(token)), key, cancellationToken, resetCacheTime).Result);
}
public async Task <T> GetCachedDataAsync <T>(Func <CancellationToken, Task <T> > dataGetter, string key, CancellationToken cancellationToken, CoordinatedResetCacheTime resetCacheTime = CoordinatedResetCacheTime.OnHour)
{
TimeSpan timeToReset;
switch (resetCacheTime)
{
case CoordinatedResetCacheTime.OnHour:
timeToReset = GetLengthOfTimeUntilNextHour();
break;
case CoordinatedResetCacheTime.OnMinute:
timeToReset = GetLengthOfTimeUntilNextMinute();
break;
}
AsyncCachePolicy cachePolicy = Policy.CacheAsync(_pollyMemoryCacheProvider.MemoryCacheProvider, timeToReset);
Context context = new Context($"{nameof(CoordinatedResetCache)}_{key}");
// collapser policy used to prevent concurrent calls retrieving the same data twice
T result = await _collapserPolicy.WrapAsync(cachePolicy).ExecuteAsync(_ => dataGetter.Invoke(cancellationToken), context);
return(result);
}
