/// <summary>
/// 验证方法参数是否合法
/// </summary>
/// <param name="method">待验证参数的方法</param>
/// <param name="args">需要验证的参数</param>
/// <param name="lazy">懒惰模式,存在第一个不合法的参数立即返回,为false则返回所有不合法的验证结果</param>
/// <returns>返回null验证通过</returns>
public static Exception IsValid(MethodInfo method, IDictionary <string, object> args, bool lazy)
{
if (method == null)
{
throw new ArgumentNullException(nameof(method));
}
if (args == null)
{
throw new ArgumentNullException(nameof(args));
}
List <Exception> errors = null;
var paras = MethodCache[method];
for (var i = 0; i < paras.Count; i++)
{
var p = paras[i];
if (args.TryGetValue(p.Member.Name, out var value))
{
for (var j = 0; j < p.Count; j++)
{
var valid = p[j];
if (valid.IsValid(value, args))
{
continue;
}
if (lazy)
{
return(valid.GetException(p.Member.Name, value, args));
}
if (errors == null)
{
errors = new List <Exception>();
}
errors.Add(valid.GetException(p.Member.Name, value, args));
}
var ex = IsValid(value, null, lazy);
if (ex == null)
{
continue;
}
if (lazy)
{
return(ex);
}
if (errors == null)
{
errors = new List <Exception>();
}
errors.AddRange((ex as AggregateException)?.InnerExceptions);
}
else
{
if (lazy)
{
return(ApiException.ArgumentMissing(p.Member.Name));
}
if (errors == null)
{
errors = new List <Exception>();
}
errors.Add(ApiException.ArgumentMissing(p.Member.Name));
}
}
return(errors == null ? null : new AggregateException(errors));
}