public static void AddBundleToCache(Bundle bundle)
{
Bundle alreadyThere;
_bundlesLock.EnterReadLock();
try
{
alreadyThere = _bundles.SingleOrDefault(x => x.Hash == bundle.Hash);
}
finally
{
_bundlesLock.ExitReadLock();
}
if (alreadyThere == null)
{
AddBundleIfNotThere(bundle);
}
else
{
bundle = alreadyThere;
}
lock (bundle)
{
if (!IsBundleInCache(bundle))
{
var result = bundle.Combine();
_cache.Set(bundle.Hash, result, new CacheItemPolicy() { AbsoluteExpiration = bundle.LastCacheInvalidationDate.AddDays(7) });
}
}
}
public static void AddBundleIfNotThere(Bundle b)
{
if (!b.IsClosed)
throw new Exception("You can only add closed bundles to the BundleHandler, sorry.");
Bundle alreadyThere;
_bundlesLock.EnterReadLock();
try
{
alreadyThere = _bundles.SingleOrDefault(x => x.Hash == b.Hash);
}
finally
{
_bundlesLock.ExitReadLock();
}
if (alreadyThere == null)
{
_bundlesLock.EnterWriteLock();
try
{
alreadyThere = _bundles.SingleOrDefault(x => x.Hash == b.Hash);
if (alreadyThere == null)
{
b.LastCacheInvalidationDate = DateTime.Now;
_bundles.Add(b);
}
}
finally
{
_bundlesLock.ExitWriteLock();
}
}
else
{
b.LastCacheInvalidationDate = alreadyThere.LastCacheInvalidationDate;
}
}
public static bool IsBundleInCache(Bundle b)
{
return (_cache[b.Hash] as string) != null;
}
