private object[] GetActionParameters()
{
ActionDescription action = this.InvokeInfo.Action;
if (action.Parameters == null || action.Parameters.Length == 0)
{
return(null);
}
IActionParametersProvider provider
= ActionParametersProviderFactory.Instance.CreateProvider(this.HttpContext);
object[] parameters = null;
IActionParametersProvider2 p2 = provider as IActionParametersProvider2;
if (p2 != null) // 优先使用内部接口版本
{
parameters = p2.GetParameters(this.HttpContext, action);
}
else
{
parameters = provider.GetParameters(this.HttpContext, action.MethodInfo);
}
EventHandler <GetActionParametersEventArgs> eventHandler = this.OnGetActionParameters;
if (eventHandler != null)
{
GetActionParametersEventArgs e = new GetActionParametersEventArgs {
HttpContext = this.HttpContext,
ActionMethod = this.InvokeInfo.Action.MethodInfo,
Parameters = parameters
};
eventHandler(this, e);
return(e.Parameters);
}
return(parameters);
}
private object[] ExecuteObtainParameters()
{
ActionDescription action = this.InvokeInfo.Action;
if (action.Parameters == null || action.Parameters.Length == 0)
{
return(null);
}
// 从工厂中获取一个能够构造Action参数的提供者实例。
IActionParametersProvider provider
= ActionParametersProviderFactory.Instance.CreateProvider(this.HttpContext);
object[] parameters = null;
// 优先使用内部接口版本
IActionParametersProvider2 p2 = provider as IActionParametersProvider2;
if (p2 != null)
{
parameters = p2.GetParameters(this.HttpContext, action);
}
else
{
parameters = provider.GetParameters(this.HttpContext, action.MethodInfo);
}
// 引发事件，允许在外部修改获取到的事件参数，可修改数组中元素，但数组本身不允许重新指定。
EventHandler <EndObtainParametersEventArgs> eventHandler = this.EndObtainParameters;
if (eventHandler != null)
{
EndObtainParametersEventArgs e = CreateEventArgs <EndObtainParametersEventArgs>();
e.Parameters = parameters;
// 调用外部的事件处理器
eventHandler(this, e);
}
return(parameters);
}
