public void Add(string key, LazyLock item, ICacheDetails cacheDetails)
{
var policy = new CacheItemPolicy();
// Set timeout
policy.Priority = CacheItemPriority.NotRemovable;
if (IsTimespanSet(cacheDetails.AbsoluteCacheExpiration))
{
policy.AbsoluteExpiration = DateTimeOffset.Now.Add(cacheDetails.AbsoluteCacheExpiration);
}
else if (IsTimespanSet(cacheDetails.SlidingCacheExpiration))
{
policy.SlidingExpiration = cacheDetails.SlidingCacheExpiration;
}
// Add dependencies
var dependencies = (IList <ChangeMonitor>)cacheDetails.CacheDependency.Dependency;
if (dependencies != null)
{
foreach (var dependency in dependencies)
{
policy.ChangeMonitors.Add(dependency);
}
}
// Setting priority to not removable ensures an
// app pool recycle doesn't unload the item, but a timeout will.
policy.Priority = CacheItemPriority.NotRemovable;
// Setup callback
policy.RemovedCallback = CacheItemRemoved;
cache.Add(key, item, policy);
}
public T GetOrAdd(string key, Func <T> loadFunction, Func <ICacheDetails> getCacheDetailsFunction)
{
LazyLock lazy;
bool success;
synclock.EnterReadLock();
try
{
success = this.cacheProvider.TryGetValue(key, out lazy);
}
finally
{
synclock.ExitReadLock();
}
if (!success)
{
synclock.EnterWriteLock();
try
{
if (!this.cacheProvider.TryGetValue(key, out lazy))
{
lazy = new LazyLock();
var cacheDetails = getCacheDetailsFunction();
this.cacheProvider.Add(key, lazy, cacheDetails);
}
}
finally
{
synclock.ExitWriteLock();
}
}
return(lazy.Get(loadFunction));
}
public bool TryGetValue(string key, out LazyLock value)
{
value = this.Get(key);
if (value != null)
{
return(true);
}
return(false);
}
public void Add(string key, LazyLock item, ICacheDetails cacheDetails)
{
DateTime absolute = System.Web.Caching.Cache.NoAbsoluteExpiration;
TimeSpan sliding = System.Web.Caching.Cache.NoSlidingExpiration;
if (IsTimespanSet(cacheDetails.AbsoluteCacheExpiration))
{
absolute = DateTime.UtcNow.Add(cacheDetails.AbsoluteCacheExpiration);
}
else if (IsTimespanSet(cacheDetails.SlidingCacheExpiration))
{
sliding = cacheDetails.SlidingCacheExpiration;
}
var dependency = (CacheDependency)cacheDetails.CacheDependency.Dependency;
Context.Cache.Insert(key, item, dependency, absolute, sliding, CacheItemPriority.NotRemovable, this.OnItemRemoved);
}
