private CacheExpirySettings ReadExpirySection(IConfigurationSection expiry)
{
CacheExpiryType cacheExpiryType = CacheExpirySettings.Default.Type;
TimeSpan ttl = CacheExpirySettings.Default.TTL;
string typeConfigValue = expiry.GetSection("type").Value;
if (typeConfigValue != null)
{
if (!Enum.TryParse(typeConfigValue, true, out cacheExpiryType))
{
throw new InvalidOperationException($"Unable to read the 'type' property => '{expiry.Path}'");
}
}
string ttlConfigValue = expiry.GetSection("ttl").Value;
if (ttlConfigValue != null)
{
if (!TimeSpan.TryParse(ttlConfigValue, out ttl))
{
throw new InvalidOperationException($"Unable to read the 'ttl' property => '{expiry.Path}'");
}
}
return(new CacheExpirySettings(cacheExpiryType, ttl));
}
public CachingInfo(bool shouldCache, string cacheKey, TimeSpan timeToCache, CacheExpiryType expiryType)
{
ShouldCache = shouldCache;
CacheKey = cacheKey;
ExpiryType = expiryType;
TimeToCache = shouldCache ? timeToCache : TimeSpan.Zero;
}
public T Get <T>(string key, Func <T> func, TimeSpan time, CacheExpiryType cacheExpiryType)
{
key = InternalCachePrefix + key;
object o = null;
if (time > TimeSpan.Zero)
{
o = _cache[key];
}
if (o != null)
{
return(o.To <T>());
}
o = func.Invoke();
if (o != null)
{
if (time > TimeSpan.Zero)
{
var absoluteExpiration = cacheExpiryType == CacheExpiryType.Absolute
? DateTime.UtcNow.Add(time)
: Cache.NoAbsoluteExpiration;
var slidingExpiration = cacheExpiryType == CacheExpiryType.Sliding
? (time)
: Cache.NoSlidingExpiration;
_cache.Add(key, o, absoluteExpiration, slidingExpiration, CacheItemPriority.AboveNormal);
}
return(o.To <T>());
}
return((T)(object)null);
}
public CachingInfo(bool shouldCache, string cacheKey, TimeSpan timeToCache, CacheExpiryType expiryType)
{
ShouldCache = shouldCache;
CacheKey = cacheKey;
ExpiryType = expiryType;
TimeToCache = shouldCache ? timeToCache : TimeSpan.Zero;
}
public CheckCommand(string key, CacheExpiryType expiryType, int expiryNumber)
{
CacheKeys = new CacheCommand<IList<string>>(key);
ExpiryType = expiryType;
ExpiryNumber = expiryNumber;
}
public CacheExpirySettings(CacheExpiryType type, TimeSpan ttl)
{
Type = type;
TTL = ttl;
}
public WebpageOutputCacheableAttribute(CacheExpiryType expiryType, int length)
{
ExpiryType = expiryType;
Length = length;
}
