/// <summary>
/// 添加处理任务对象，同时指定异常处理
/// </summary>
/// <param name="taskItem">目标执行委托</param>
/// <param name="context">执行上下文参数</param>
/// <param name="excetionHandlerTargetType">异常处理类型（必须继承实现TaskExceptionHandler）</param>
/// <param name="backAction">回调方法</param>
public void AddTaskItem(Action <T> taskItem, T context, Type excetionHandlerTargetType, WaitCallback backAction = null)
{
HandlerItem <T> item = new HandlerItem <T>();
item.contextObj = context;
item.taskItemObj = taskItem;
item.backAction = backAction;
if (excetionHandlerTargetType != null)
{
item.exceptionHandlerTarget = excetionHandlerTargetType.FullName;
item.exceptionHandlerTargetType = excetionHandlerTargetType;
}
AddTaskItem(item);
}
/// <summary>
/// 具体处理对象
/// </summary>
public override void Handler()
{
if (!isStart)
{
isStart = true;//同一时间只能开启一个线程处理
Thread thread = new Thread(() =>
{
while (isStart)
{
try
{
//停留5秒后判断是否有未处理，如果没有直接停掉当前线程
if (!exceptionQueue.Any())
{
Thread.Sleep(5000);
}
if (!exceptionQueue.Any())
{
isStart = false;//当前处理完成后停止当前线程
Thread.CurrentThread.DisableComObjectEagerCleanup();
return;
}
HandlerItem <T> hadlerItem = null;
lock (obj)
{
hadlerItem = exceptionQueue.Dequeue();
}
hadlerItem.taskItemObj(hadlerItem.contextObj);
}
catch (Exception ex)
{
//待处理
}
}
});
thread.Start();
thread.IsBackground = true;
}
}
/// <summary>
/// 开启异常处理
/// </summary>
public static void StartExceptionHandler(HandlerItem <T> item)
{
TaskExceptionHandler <T> handlerObj = null;
if (item.exceptionHandlerTarget == "Default")
{
handlerObj = new DefaultExceptionHandler <T>();
}
else
{
try
{
handlerObj = (TaskExceptionHandler <T>)Activator.CreateInstance(item.exceptionHandlerTargetType);
}
catch
{
handlerObj = new DefaultExceptionHandler <T>();
}
}
handlerObj.AddExceptionTaskItem(item);
handlerObj.Handler();
}
/// <summary> /// 添加异常任务项 /// </summary> /// <param name="item"></param> public abstract void AddExceptionTaskItem(HandlerItem <T> item);
/// <summary>
/// 设置工作任务和上下文数据
/// </summary>
/// <param name="action"></param>
/// <param name="contextObj"></param>
public void SetWorkTask(HandlerItem <T> contextObj)
{
this.contextObj = contextObj;
}