private TResult QueryByCache <T1, T2, T3, TResult>(T1 k1, T2 k2, T3 k3, Func <T1, T2, T3, TResult> callback, String action)
{
// 读写分离
if (Strategy != null)
{
if (Strategy.Validate(this, k1 + "", action))
{
return(ReadOnly.QueryByCache(k1, k2, k3, callback, action));
}
}
CheckDatabase();
// 读缓存
var cache = GetCache();
var key = "";
if (cache != null)
{
var sb = Pool.StringBuilder.Get();
if (!action.IsNullOrEmpty())
{
sb.Append(action);
sb.Append('#');
}
Append(sb, k1);
Append(sb, k2);
Append(sb, k3);
key = sb.Put(true);
if (cache.TryGetValue <TResult>(key, out var value))
{
return(value);
}
}
Interlocked.Increment(ref _QueryTimes);
var rs = Invoke(k1, k2, k3, callback, action);
cache?.Set(key, rs, Expire);
return(rs);
}
