public T GetOrSet <T>(string key, Func <T> dataGetter, DateTimeOffset absoluteExpirationOffset)
{
CachedItem <T> data = MemoryCache.Default.Get(key) as CachedItem <T>;
if (data == null)
{
data = new CachedItem <T> {
Item = dataGetter()
};
var policy = new CacheItemPolicy {
AbsoluteExpiration = absoluteExpirationOffset
};
MemoryCache.Default.Add(key, data, policy);
}
return(data.Item);
}
public async Task <T> GetOrSetAsync <T>(string key, Func <Task <T> > dataGetter, TimeSpan slidingExpirationInterval)
{
CachedItem <T> data = MemoryCache.Default.Get(key) as CachedItem <T>;
if (data == null)
{
data = new CachedItem <T>()
{
Item = await dataGetter()
};
var policy = new CacheItemPolicy {
SlidingExpiration = slidingExpirationInterval
};
MemoryCache.Default.Add(key, data, policy);
}
return(data.Item);
}