public bool TryGetValue(object key, out object value)
{
Logger.Log(
"Trying to get item against key '" + key + "'",
Microsoft.Extensions.Logging.LogLevel.Trace
);
value = _nCache.Get(key.ToString());
return(value != null);
}
public async Task <Author> GetAuthor(int id)
{
_cache = NCache.InitializeCache("CacheName");
var cacheKey = "Key";
Author author = null;
if (_cache != null)
{
author = _cache.Get(cacheKey) as Author;
}
if (author == null) //Data not available in the cache
{
//Write code here to fetch the author
// object from the database
if (author != null)
{
if (_cache != null)
{
_cache.Insert(cacheKey, author, null,
Alachisoft.NCache.Web.Caching.Cache.NoAbsoluteExpiration,
TimeSpan.FromMinutes(10),
Alachisoft.NCache.Runtime.
CacheItemPriority.Default);
}
}
}
return(author);
}
public object Get(string key)
{
Alachisoft.NCache.Web.Caching.Cache cache = (Alachisoft.NCache.Web.Caching.Cache)_caches[_primaryCache];
if (cache != null)
{
return(cache.Get(key));
}
else
{
return(null);
}
}
public object Get(string key, bool enableRetry)
{
return(_cache.Get(key));
}
void GetCache(string sessionId, string key, out object value, string group, string subGroup, out Alachisoft.NCache.Web.Caching.Cache cache, bool isGet, ref LockHandle lockHandle, bool acquireLock)
{
value = null;
//Implementation For Raiynair cookieless robots
string sidPrefix = string.Empty;
sidPrefix = sessionId.Substring(0, 4);
if (!_settings.PrimaryCache.Contains(sidPrefix) && _isSessionCookieless)
{
_isSessionCookieless = false;
cache = null;
return;
}
_isSessionCookieless = false;
cache = _caches[GetCache(sessionId)] as Alachisoft.NCache.Web.Caching.Cache;
if (cache != null)
{
if (isGet)
{
value = cache.Get(key, Alachisoft.NCache.Web.Caching.Cache.NoLockExpiration, ref lockHandle, acquireLock);
}
}
else
{
if (_currentSessionCache == null || _currentSessionCache == string.Empty)
{
IDictionaryEnumerator cacheDic = _caches.GetEnumerator();
do
{
/// This code will ensure that primary cache is used first to be lookedin.
if (cache == null)
{
cache = _caches[_primaryCache] as Alachisoft.NCache.Web.Caching.Cache;
}
else
{
cache = (Alachisoft.NCache.Web.Caching.Cache)cacheDic.Value;// select the cache from enumerator.
// primary cache is already traversed so no need to do it again.
if (cache.ToString().Equals(_primaryCache))
{
continue;
}
}
if (isGet)
{
value = cache.Get(key, Alachisoft.NCache.Web.Caching.Cache.NoLockExpiration, ref lockHandle, acquireLock);
}
else
{
if (cache.Contains(key))
{
value = new object();
break;
}
}
} while (cacheDic.MoveNext() && value == null);
if (value != null) // value was found from one of the caches. so use that cache for all further operations during this HTTP request.
{
_currentSessionCache = cache.ToString();
}
else// value wasn't found from any of the caches. thus use hte primary cache for all further operations.
{
_currentSessionCache = _primaryCache;
}
}
else
{
cache = _caches[_currentSessionCache] as Alachisoft.NCache.Web.Caching.Cache;
if (isGet)
{
value = cache.Get(key, Alachisoft.NCache.Web.Caching.Cache.NoLockExpiration, ref lockHandle, acquireLock);
}
}
}
}
public object Get(string sessionId, string key, string group, string subGroup)
{
CacheItemVersion version = null;
return(_cache.Get(key, DSReadOption.None, ref version));
}
