public virtual async Task Set( string key, object value, CachePolicyItem cachePolicy )
{
//清除一级缓存，写入二级缓存
await L1Cache.Remove( key );
await L2Cache.Set( key, value, cachePolicy );
//后台写入一级缓存。
Background( L1Cache.Set( key, value, cachePolicy ) );
}
/// <summary>
/// 根据现有缓存策略创建 MemoryCache 的缓存策略
/// </summary>
/// <param name="cachePolicy">缓存策略</param>
/// <returns>MemoryCache 的缓存策略</returns>
private CacheItemPolicy CreateCacheItemPolicy( CachePolicyItem cachePolicy )
{
return new CacheItemPolicy
{
AbsoluteExpiration = cachePolicy.Expires,
Priority = cachePolicy.Priority.IsHighPriority ? CacheItemPriority.NotRemovable : CacheItemPriority.Default,
};
}
/// <summary>
/// 设置缓存值
/// </summary>
/// <param name="key">缓存键</param>
/// <param name="value">缓存值</param>
/// <param name="cachePolicy">缓存策略</param>
public void Set( string key, object value, CachePolicyItem cachePolicy )
{
_host.Set( new System.Runtime.Caching.CacheItem( key, value ), CreateCacheItemPolicy( cachePolicy ) );
}
public Task Set( string key, object value, CachePolicyItem cachePolicy )
{
provider.Set( key, value, cachePolicy );
return Task.FromResult( (object) null );
}
void ICacheProvider.Set( string cacheKey, object value, CachePolicyItem cachePolicy )
{
}
public async Task Set( string cacheKey, object value, CachePolicyItem cachePolicy )
{
await _database.StringSetAsync( cacheKey, _serializer.Serialize( value ), cachePolicy.Expires - DateTime.UtcNow );
}
/// <summary>
/// 设置缓存策略对象
/// </summary>
/// <param name="cacheKey"></param>
/// <param name="cachePolicy"></param>
public void SetCachePolicy( string cacheKey, CachePolicyItem cachePolicy )
{
var filepath = Path.Combine( CurrentDirectory, cacheKey + ".policy" );
using ( var writer = new StreamWriter( new FileStream( filepath, FileMode.Create, FileAccess.Write, FileShare.Delete ), Encoding.UTF8 ) )
{
writer.Write( cachePolicy.ToString() );
}
}
void ICacheProvider.Set(string key, object value, CachePolicyItem cachePolicy)
{
client.Store(StoreMode.Set, key, value, cachePolicy.Expires);
}
/// <summary>
/// 设置一个缓存
/// </summary>
/// <param name="cacheKey">缓存键</param>
/// <param name="value">缓存值</param>
/// <param name="cachePolicy">缓存策略</param>
public async Task Set( string cacheKey, object value, CachePolicyItem cachePolicy )
{
_manager.SetCachePolicy( cacheKey, cachePolicy );
var stream = new MemoryStream();
_serializer.Serialize( stream, value );
await _manager.WriteStream( cacheKey, stream );
}
public async Task Set(string cacheKey, object value, CachePolicyItem cachePolicy)
{
await _database.StringSetAsync(cacheKey, _serializer.Serialize(value), cachePolicy.Expires - DateTime.UtcNow);
}
async Task IAsyncCacheProvider.Set( string cacheKey, object value, CachePolicyItem cachePolicy )
{
var provider = await GetCacheProvider( cacheKey );
await provider.Set( cacheKey, value, cachePolicy );
}
void ICacheProvider.Set( string key, object value, CachePolicyItem cachePolicy )
{
client.Store( StoreMode.Set, key, value, cachePolicy.Expires );
}
