private void Remove(string key, bool publishCleanCache)
{
try
{
if (IsExists(key))
{
Db.KeyDelete(key);
}
CurrentRuntimeCache.Remove(key);
if (publishCleanCache)
{
PublishCleanCache(key);
}
}
catch (RedisConnectionException ex)
{
CacheManager.UseBackupConnection(ex).Remove(key);
}
catch
{
// ignored
}
}
public bool TryGet <T>(string key, out T value) where T : class
{
try
{
if (CurrentRuntimeCache.TryGet(key, out value))
{
return(true);
}
if (!IsExists(key))
{
value = default(T);
return(false);
}
value = Get <T>(key);
}
catch (RedisConnectionException ex)
{
return(CacheManager.UseBackupConnection(ex).TryGet(key, out value));
}
catch
{
value = default(T);
return(false);
}
return(true);
}
public T Get <T>(string key)
{
var model = default(T);
try
{
var runtimeCacheObject = CurrentRuntimeCache.Get <T>(key);
if (runtimeCacheObject != null)
{
return(runtimeCacheObject);
}
model = Db.StringGet(key).ToString().FromJson <T>();
}
catch (RedisConnectionException ex)
{
return(CacheManager.UseBackupConnection(ex).Get <T>(key));
}
catch
{
// ignored
}
return(model);
}
internal void SubscribeToCacheUpdate()
{
var subscriber = Connection.GetSubscriber();
subscriber.Subscribe(KeyRedisChannelNameForUpdate, (channel, message) =>
{
if (channel != KeyRedisChannelNameForUpdate)
{
return;
}
var messageStr = (string)message;
if (string.IsNullOrWhiteSpace(messageStr))
{
return;
}
try
{
var model = messageStr.FromJson <CacheUpdateModel>();
// Yayınlayan bu sunucuysa işlem yapmaması için
if (model.Publisher == PublisherId)
{
return;
}
if (model.Key.StartsWith("##remove##"))
{
var key = model.Key.ReplaceFirst("##remove##", "");
CurrentRuntimeCache.Remove(key);
return;
}
if (model.Key.StartsWith("##removeall##"))
{
var prefix = model.Key.ReplaceFirst("##removeall##", "");
CurrentRuntimeCache.RemoveAll(prefix);
return;
}
// Gelen nesnenin anlık tipini bilmediğimiz için Json dönüştürücü bunu yapamıyor
// Model üzerinden tip okunup, modeldeki json bu tipe göre nesneye çevriliyor.
var cacheItemValueJson = JObject.Parse(messageStr)["Value"].ToString();
var value = JsonConvert.DeserializeObject(cacheItemValueJson, model.ValueType);
// Rediste zaten var o yüzden sadece runtimecache'de değişecek.
CurrentRuntimeCache.Set(model.Key, value, model.ExpireDate);
}
catch
{
// ignored
}
});
}
public bool IsExists(string key)
{
try
{
return(CurrentRuntimeCache.IsExists(key) || Db.KeyExists(key));
}
catch (RedisConnectionException ex)
{
CacheManager.UseBackupConnection(ex).IsExists(key);
}
catch
{
// ignored
}
return(false);
}
public object Get(string key)
{
try
{
var runtimeCacheObject = CurrentRuntimeCache.Get(key);
return(runtimeCacheObject ?? Db.StringGet(key).ToString().FromJson <object>());
}
catch (RedisConnectionException ex)
{
return(CacheManager.UseBackupConnection(ex).Get(key));
}
catch
{
// ignored
}
return(null);
}
public void Set(string key, object value, DateTime absoluteExpration)
{
try
{
var valueJson = JsonConvert.SerializeObject(value);
Db.StringSet(key, valueJson, absoluteExpration.ToUniversalTime().Subtract(DateTime.UtcNow));
CurrentRuntimeCache.Set(key, value, absoluteExpration);
Publish(key, value, absoluteExpration);
}
catch (RedisConnectionException ex)
{
CacheManager.UseBackupConnection(ex).Set(key, value, absoluteExpration);
}
catch
{
// ignored
}
}
public bool RemoveAll(string prefix = "")
{
try
{
foreach (var key in GetRedisKeys(prefix))
{
Current.Remove(key, false);
}
CurrentRuntimeCache.RemoveAll(prefix);
PublishCleanAllCache(prefix);
}
catch (RedisConnectionException ex)
{
return(CacheManager.UseBackupConnection(ex).RemoveAll(prefix));
}
catch
{
return(false);
}
return(true);
}
