/// <summary>
/// 正常执行的运行时
/// </summary>
internal override void ExecuteInstanceImp(ISession session)
{
var runningExecutionContext = ActivityForwardContext.CreateTaskContext(base.TaskView,
base.ProcessModel,
base.ActivityResource);
//判断流程是否可以被运行
if (runningExecutionContext.ProcessInstance.ProcessState != (short)ProcessStateEnum.Running)
{
throw new WfRuntimeException(string.Format("当期流程不在运行状态！详细信息：当前流程状态：{0}",
runningExecutionContext.ProcessInstance.ProcessState));
}
if (base.TaskView.ActivityState != (short)NodeStateEnum.Running)
{
throw new WfRuntimeException(string.Format("当期当前活动节点不在运行状态！详细信息：当前活动状态：{0}",
base.TaskView.ActivityState));
}
//执行节点
base.ExecuteWorkItemIteraly(runningExecutionContext, session);
//构造回调函数需要的数据
base.WfExecutedResult = WfExecutedResult.Success();
}
internal override void ExecuteInstanceImp(ISession session)
{
//构造流程实例
var processInstance = new ProcessInstanceManager()
.CreateNewProcessInstanceObject(base.AppRunner.AppName, base.AppRunner.AppInstanceID,
base.ProcessModel.ProcessEntity,
base.AppRunner.UserID,
base.AppRunner.UserName);
//构造活动实例
//1. 获取开始节点活动
var startActivity = base.ProcessModel.GetStartActivity();
var startExecutionContext = ActivityForwardContext.CreateStartupContext(base.ProcessModel,
processInstance,
startActivity,
base.ActivityResource);
base.ExecuteWorkItemIteraly(startExecutionContext, session);
//构造回调函数需要的数据
base.WfExecutedResult = WfExecutedResult.Success();
base.WfExecutedResult.ProcessInstanceGUID = processInstance.ProcessInstanceGUID;
base.WfExecutedResult.NextActivityTree = GetNextActivityTree(base.AppRunner.Conditions, session);
}
/// <summary>
/// 创建节点执行器的抽象类
/// </summary>
/// <param name="processInstance"></param>
/// <param name="activity"></param>
/// <param name="activityResource"></param>
/// <param name="dataContext"></param>
/// <returns></returns>
internal static NodeMediator CreateWorkItemMediator(ActivityForwardContext executionObject,
ISession session)
{
if (executionObject.Activity.IsStartNode)
{
return(new NodeMediatorStart(executionObject, session));
}
else if (executionObject.Activity.IsAutomanticWorkItem)
{
return(new NodeMediatorAutomantic(executionObject, session));
}
else
{
return(new NodeManualMediator(executionObject, session));
}
}
/// <summary>
/// 执行要办理的工作项
/// </summary>
/// <param name="ProcessInstanceEntity"></param>
internal void ExecuteWorkItemIteraly(ActivityForwardContext executionContext,
ISession session)
{
NodeMediator mediator = NodeMediatorFactory.CreateWorkItemMediator(executionContext, session);
mediator.ExecuteWorkItem();
//继续执行队列中的节点
Queue <WorkItem> toDoQueue = mediator.ToDoAutoWorkItemQueue;
while (toDoQueue.Count > 0)
{
//更新执行上下文数据
WorkItem workItem = toDoQueue.Dequeue();
executionContext.Activity = workItem.Activity;
executionContext.ActivityInstance = workItem.ActivityInstance;
//继续向前执行...
NodeMediator nextMediator = NodeMediatorFactory.CreateWorkItemMediator(executionContext, session);
nextMediator.ExecuteWorkItem();
toDoQueue = nextMediator.ToDoAutoWorkItemQueue;
}
}
internal NodeMediatorAutomantic(ActivityForwardContext executionObject, ISession session)
: base(executionObject, session)
{
}
internal NodeMediator(ActivityForwardContext executionObject, ISession session)
{
_wfExecutionContext = executionObject;
_session = session;
_processModel = executionObject.ProcessModel;
}
internal NodeManualMediator(ActivityForwardContext executionObject, ISession session)
: base(executionObject, session)
{
}
internal NodeMediatorStart(ActivityForwardContext executionContext, ISession session)
: base(executionContext, session)
{
}