// Returns keyImpl owned by cache, thus KeyHolder is not used
public IKeyImpl TryGet(KeyIdentity identity, KeyDisposition disposition, KeySecurity samDesired)
{
lock (this)
{
CacheKey cacheKey = new CacheKey {
Identity = identity, Disposition = disposition
};
if (!cachedKeyImpls_.ContainsKey(cacheKey))
{
return(null);
}
KeyImplHolder cached = cachedKeyImpls_[cacheKey];
if (!samDesired.IsSubSetOf(cached.GetKeyImpl().GetAccessMode()))
{
return(null);
}
return(cached.GetKeyImpl());
}
}
// If the keyImpl is added, returns NotOwningKeyImplHolder,
// otherwise returns original KeyImplHolder
public KeyImplHolder Add(KeyIdentity identity, KeyDisposition disposition, KeyImplHolder keyHolder)
{
lock (this)
{
CacheKey cacheKey = new CacheKey {
Identity = identity, Disposition = disposition
};
if (cachedKeyImpls_.ContainsKey(cacheKey))
{
return(keyHolder);
}
cachedKeyImpls_.Add(cacheKey, keyHolder);
return(new NotOwningKeyImplHolder(keyHolder.GetKeyImpl()));
}
}
