/// <summary>
/// 使用 <see cref="RedisCacheValue" /> 包装 缓存值，并返回序列化后的结果。
/// </summary>
/// <param name="key"></param>
/// <param name="value"></param>
/// <param name="absoluteExpiration"></param>
/// <param name="slidingExpiration"></param>
/// <returns></returns>
protected byte[] ParseValue(string key, object value, DateTime?absoluteExpiration,
TimeSpan?slidingExpiration)
{
var cacheValue = new RedisCacheValue
{
Key = key,
AbsoluteExpiration = absoluteExpiration,
SlidingExpiration = slidingExpiration,
Value = value
};
return(Serialize(cacheValue));
}
protected bool CheckCacheValue(RedisCacheValue value)
{
if (value.SlidingExpiration.HasValue)
{
// 通常情况下在 滑动时间到期时 RedisCache 会自动移除缓存项。
if (value.SlidingExpiration.Value < DateTime.Now - value.InsertTime)
{
Remove(value.Key);
return(false);
}
Set(value.Key, value.Value, value.SlidingExpiration.Value);
}
return(true);
}
protected bool TryDeserialize(byte[] data, out RedisCacheValue @object)
{
@object = default(RedisCacheValue);
if (data == null)
{
return(false);
}
try
{
var result = _serializableService.Deserialize <RedisCacheValue>(data);
@object = result;
if (!CheckCacheValue(@object))
{
@object = null;
return(false);
}
return(true);
}
catch
{
return(false);
}
}