/// <summary>
/// 根据提供的配置创建 <see cref="ICacheManager"/> 对象。
/// </summary>
/// <param name="setting"></param>
/// <returns></returns>
private static ICacheManager CreateBySetting(CachingConfigurationSetting setting)
{
var caching = setting.CacheType.New <ICacheManager>();
if (caching == null)
{
return(null);
}
caching.As <IConfigurationSettingHostService>(s => ConfigurationUnity.AttachSetting(s, setting));
return(caching);
}
/// <summary>
/// 根据应用程序配置，创建缓存管理器。
/// </summary>
/// <param name="configName">应用程序配置项的名称。</param>
/// <returns><paramref name="configName"/>缺省时，如果应用程序未配置，则为 <see cref="MemoryCacheManager"/>，否则为配置项对应的 <see cref="ICacheManager"/> 实例。</returns>
public static ICacheManager CreateManager(string configName = null)
{
ICacheManager manager;
CachingConfigurationSetting setting = null;
var section = ConfigurationUnity.GetSection <CachingConfigurationSection>();
if (section != null && section.Factory != null)
{
manager = section.Factory.CreateInstance(configName) as ICacheManager;
if (manager != null)
{
return(manager);
}
}
if (string.IsNullOrEmpty(configName))
{
if (section == null || section.Default == null)
{
return(MemoryCacheManager.Instance);
}
setting = section.Default;
}
else if (section != null)
{
setting = section.Settings[configName];
}
if (setting == null || setting.CacheType == null)
{
return(null);
}
return(CreateBySetting(setting));
}
