/// <summary>
/// Executes the specified activity.
/// </summary>
/// <param name="activity">The activity.</param>
protected override void ExecuteActivity(Activity activity)
{
activity.OnInitialize(this);
//执行当前动作
activity.OnExecute(this);
//如果工作流动作完成,那么移动到下一步状态
if (activity.ExecutionStatus == ActivityExecutionStatus.Closed)
{
//添加当前动作到动作列表中
executedActivities.Add(activity);
if (activity is IBranchAction)
{
//分支动作,需要获取分支执行后选定的状态
IBranchAction branch = (IBranchAction)activity;
MoveOn(branch.GetSelectedState());
}
else
{
//顺序动作,从动作针对的事件名称中获取状态
ApprovalEvent currentEvent = CurrentState.GetEventByName(activity.EventName);
MoveOn(currentEvent.NextStateNames[0]);
}
}
//保存
Save();
if (this.stateRecordNames.Count > 0)
{
WorkflowRuntime.Current.OnWorkflowExecuted(new StateChangedEventArgs(this, this.stateRecordNames[stateRecordNames.Count - 1], stateName));
}
//如果是子流程的执行完成,那么还有判断其父流程是否也已经执行完毕,如果执行完毕,那么设置其父流程的下一步状态
if (this.CurrentStatus == WorkflowExecutionStatus.Closed && parentId != null && parentId != Guid.Empty)
{
StateMachineWorkflowInstance parentInstance = (StateMachineWorkflowInstance)WorkflowRuntime.Current.GetInstance(parentId);
parentInstance.OnChildFinished(this);
}
else if (this.CurrentStatus == WorkflowExecutionStatus.Aborted)
{
WorkflowRuntime.Current.OnWorkflowTerminated(new StateChangedEventArgs(this, this.stateRecordNames[stateRecordNames.Count - 1], stateName));
}
if (IsEnd())
{
WorkflowRuntime.Current.OnWorkflowCompleted(new StateChangedEventArgs(this, this.stateRecordNames[stateRecordNames.Count - 1], stateName));
}
}
