public static bool BeginTask(int userID, StepByStepTaskBase taskAction, string param)
{
Type taskType = taskAction.GetType();
Guid taskID = Guid.NewGuid();
RunningTask task = new RunningTask(taskAction);
int totalCount = 0;
long offset = 0;
string title;
if (task.Task.BeforeExecute(userID, param, ref offset, ref totalCount, out title) == false)
{
return(false);
}
int result = StepByStepTaskDao.Instance.BeginTask(taskID, taskType, userID, param, totalCount, offset, title, taskAction.InstanceMode);
switch (result)
{
case 0:
return(true);
case 1:
case 2:
return(false);
default:
return(false);
}
}
/// <summary>
/// 执行任务的当前步骤，并返回一个值表示是否继续执行
/// </summary>
/// <param name="operatorUserID"></param>
/// <param name="taskID"></param>
/// <param name="percent"></param>
/// <param name="title"></param>
/// <returns></returns>
public static bool ExecuteTaskStep(int operatorUserID, Guid taskID, out int percent, out string title)
{
percent = 0;
title = string.Empty;
bool result = true;
lock (executeLocker)
{
RunningTask task = TaskManager.GetRunningTask(operatorUserID, taskID);
if (task == null || task.Task == null)
{
return(false);
}
else
{
bool isLastStep;
if (task.Task.StepExecute(task.UserID, task.Param, ref task.Offset, ref task.TotalCount, ref task.FinishedCount, out task.Title, out isLastStep))
{
if (isLastStep)
{
task.Task.AfterExecute(task.UserID, task.Param, true, task.TotalCount, task.FinishedCount, out task.Title);
StepByStepTaskDao.Instance.FinishTask(task.TaskID);
result = false;
}
else
{
StepByStepTaskDao.Instance.UpdateRunnintTaskStatus(task.TaskID, task.Param, task.TotalCount, task.FinishedCount, task.Offset, task.Title);
}
}
else
{
task.Task.AfterExecute(task.UserID, task.Param, false, task.TotalCount, task.FinishedCount, out task.Title);
result = false;
}
percent = task.Percent;
title = task.Title;
}
}
return(result);
}