/// <summary>
/// 处理Api行为执行过程中产生的异常
/// </summary>
/// <param name="actionContext">上下文</param>
/// <param name="actionfilters">过滤器</param>
/// <param name="exception">异常项</param>
private void ProcessExecutingException(ActionContext actionContext, IEnumerable<IFilter> actionfilters, Exception exception)
{
var exceptionContext = new ExceptionContext(actionContext, new ApiExecuteException(exception));
this.Server.SendRemoteException(exceptionContext);
this.ExecAllExceptionFilters(actionfilters, exceptionContext);
}
/// <summary>
/// 调用自身实现的Api行为
/// 将返回值发送给客户端
/// </summary>
/// <param name="actionContext">上下文</param>
/// <param name="filters">过滤器</param>
/// <exception cref="ArgumentException"></exception>
/// <returns>当正常执行输出Api的结果时返回true</returns>
private bool ExecuteAction(ActionContext actionContext, IEnumerable<IFilter> filters)
{
var packet = actionContext.Packet;
var action = actionContext.Action;
var session = actionContext.Session;
var serializer = this.Server.JsonSerializer;
var parameters = this.GetAndUpdateParameterValues(actionContext);
// Api执行前
this.ExecFiltersBeforeAction(filters, actionContext);
if (actionContext.Result != null)
{
var exceptionContext = new ExceptionContext(actionContext, actionContext.Result);
this.Server.SendRemoteException(exceptionContext);
return false;
}
// 执行Api
var apiResult = action.Execute(this, parameters);
// Api执行后
this.ExecFiltersAfterAction(filters, actionContext);
if (actionContext.Result != null)
{
var exceptionContext = new ExceptionContext(actionContext, actionContext.Result);
this.Server.SendRemoteException(exceptionContext);
return false;
}
// 返回数据
if (action.IsVoidReturn == false && session.IsConnected)
{
packet.body = apiResult;
var packetJson = serializer.Serialize(packet);
session.UnWrap().SendText(packetJson);
}
return true;
}
/// <summary>
/// 执行异常过滤器
/// </summary>
/// <param name="filters">Api行为过滤器</param>
/// <param name="exceptionContext">上下文</param>
private void ExecAllExceptionFilters(IEnumerable<IFilter> filters, ExceptionContext exceptionContext)
{
var totalFilters = this.GetTotalFilters(filters);
foreach (var filter in totalFilters)
{
filter.OnException(exceptionContext);
if (exceptionContext.ExceptionHandled == true) break;
}
if (exceptionContext.ExceptionHandled == false)
{
throw exceptionContext.Exception;
}
}
/// <summary>
/// 设置远程异常
/// </summary>
/// <param name="serializer">序列化工具</param>
/// <param name="exceptionContext">上下文</param>
/// <returns></returns>
public static bool SetRemoteException(IDynamicJsonSerializer serializer, ExceptionContext exceptionContext)
{
try
{
var packet = exceptionContext.Packet;
packet.state = false;
packet.body = exceptionContext.Exception.Message;
var packetJson = serializer.Serialize(packet);
exceptionContext.Session.SendText(packetJson);
return true;
}
catch (Exception)
{
return false;
}
}
/// <summary>
/// 在Api执行中异常时触发
/// </summary>
/// <param name="filterContext">上下文</param>
protected virtual void OnException(ExceptionContext filterContext)
{
}
/// <summary>
/// 处理Api行为执行过程中产生的异常
/// </summary>
/// <param name="actionContext">上下文</param>
/// <param name="actionfilters">过滤器</param>
/// <param name="exception">异常项</param>
private void ProcessExecutingException(ActionContext actionContext, IEnumerable<IFilter> actionfilters, Exception exception)
{
var exceptionContext = new ExceptionContext(actionContext, new ApiExecuteException(exception));
Common.SetRemoteException(this.Server.JsonSerializer, exceptionContext);
this.ExecExceptionFilters(actionfilters, exceptionContext);
if (exceptionContext.ExceptionHandled == false)
{
throw exception;
}
}
protected override void OnException(ExceptionContext filterContext)
{
Console.WriteLine(filterContext.Exception.Message);
filterContext.ExceptionHandled = true;
}
/// <summary>
/// 在Api执行中异常时触发
/// </summary>
/// <param name="filterContext">上下文</param>
protected virtual void OnException(ExceptionContext filterContext)
{
}
