/// <summary>
/// Api执行之前
/// 在此检测parameter的输入合理性
/// 不合理可以抛出异常
/// </summary>
/// <param name="action">关联的Api行为</param>
/// <param name="parameter">参数信息</param>
public override void OnOnExecuting(ApiAction action, ApiParameter parameter)
{
if (parameter.Value == null)
{
throw new ArgumentNullException(parameter.Name);
}
}
/// <summary>
/// 获取参数的参数过滤器
/// </summary>
/// <param name="parameter">参数</param>
/// <param name="index">索引</param>
/// <returns></returns>
private IEnumerable <ParameterFilterAttribute> GetParameterFilterAttributes(ApiParameter parameter, int index)
{
return(parameter.Info
.GetCustomAttributes <ParameterFilterAttribute>(inherit: true)
.Select(filter => filter.InitWith(index)));
}
/// <summary>
/// 绑定参数
/// </summary>
/// <param name="parameter">参数</param>
internal ParameterFilterAttribute BindParameter(ApiParameter parameter)
{
this.parameter = parameter;
return(this);
}
/// <summary> /// Api执行之前 /// 在此检测parameter的输入合理性 /// 不合理可以抛出异常 /// </summary> /// <param name="action">关联的Api行为</param> /// <param name="parameter">参数信息</param> public abstract void OnExecuting(ApiAction action, ApiParameter parameter);
/// <summary>
/// 绑定参数
/// </summary>
/// <param name="parameter">参数</param>
internal ParameterFilterAttribute InitWith(ApiParameter parameter)
{
this.parameter = parameter;
return(this);
}