/// <summary>
/// 开始节点的构造执行上下文对象
/// </summary>
/// <param name="processModel"></param>
/// <param name="processInstance"></param>
/// <param name="activity"></param>
/// <param name="activityResource"></param>
private ActivityForwardContext(ProcessModel processModel,
ProcessInstanceEntity processInstance,
ActivityEntity activity,
ActivityResource activityResource)
{
ProcessModel = processModel;
ProcessInstance = processInstance;
Activity = activity;
ActivityResource = activityResource;
}
/// <summary>
/// 任务执行的上下文对象
/// </summary>
/// <param name="task"></param>
/// <param name="processModel"></param>
/// <param name="activityResource"></param>
private ActivityForwardContext(TaskViewEntity task,
ProcessModel processModel,
ActivityResource activityResource)
{
this.TaskView = task;
//check task condition has load activity instance
this.FromActivityInstance = (new ActivityInstanceManager()).GetById(task.ActivityInstanceID);
this.ProcessInstance = (new ProcessInstanceManager()).GetById(task.ProcessInstanceID);
this.Activity = processModel.GetActivity(task.ActivityGUID);
this.ProcessModel = processModel;
this.ActivityResource = activityResource;
}
/// <summary>
/// 获取下一步节点列表（伴随条件和资源）
/// </summary>
/// <param name="currentActivity"></param>
/// <param name="conditionKeyValuePair"></param>
/// <returns></returns>
internal NextActivityMatchedResult GetNextActivityList(string currentActivityGUID,
IDictionary <string, string> conditionKeyValuePair,
ActivityResource activityResource,
Expression <Func <ActivityResource, ActivityEntity, bool> > expression)
{
NextActivityComponent newRoot = NextActivityComponentFactory.CreateNextActivityComponent();
//先获取未加运行时表达式过滤的下一步节点列表
NextActivityMatchedResult result = GetNextActivityList(currentActivityGUID,
conditionKeyValuePair);
foreach (NextActivityComponent c in result.Root)
{
if (c.HasChildren)
{
NextActivityComponent child = GetNextActivityListByExpressionRecurisivly(c, activityResource, expression);
if (child != null)
{
newRoot.Add(child);
}
}
else
{
if (expression.Compile().Invoke(activityResource, c.Activity))///TODO
{
newRoot.Add(c);
}
}
}
NextActivityMatchedResult newResult = null;
if (newRoot.HasChildren)
{
newResult = NextActivityMatchedResult.CreateNextActivityMatchedResultObject(result.MatchedType, newRoot);
}
else
{
newResult = NextActivityMatchedResult.CreateNextActivityMatchedResultObject(NextActivityMatchedType.NoneTransitionFilteredByCondition,
newRoot);
}
return(newResult);
}
/// <summary>
/// 递归获取满足条件的下一步节点列表
/// </summary>
/// <param name="root"></param>
/// <param name="activityResource"></param>
/// <param name="expression"></param>
/// <returns></returns>
private NextActivityComponent GetNextActivityListByExpressionRecurisivly(NextActivityComponent root,
ActivityResource activityResource,
Expression <Func <ActivityResource, ActivityEntity, bool> > expression)
{
NextActivityComponent r1 = null;
foreach (NextActivityComponent c in root)
{
if (c.HasChildren)
{
NextActivityComponent child = GetNextActivityListByExpressionRecurisivly(c, activityResource, expression);
r1 = AddChildToNewGatewayComponent(r1, c, child);
}
else
{
if (expression.Compile().Invoke(activityResource, c.Activity))
{
r1 = AddChildToNewGatewayComponent(r1, root, c);
}
}
}
return(r1);
}
/// <summary>
/// 启动流程的上下文对象
/// </summary>
/// <param name="processModel"></param>
/// <param name="processInstance"></param>
/// <param name="activity"></param>
/// <param name="activityResource"></param>
/// <returns></returns>
internal static ActivityForwardContext CreateStartupContext(ProcessModel processModel,
ProcessInstanceEntity processInstance,
ActivityEntity activity,
ActivityResource activityResource)
{
return new ActivityForwardContext(processModel, processInstance, activity, activityResource);
}
/// <summary>
/// 创建任务执行上下文对象
/// </summary>
/// <param name="task"></param>
/// <param name="processModel"></param>
/// <param name="activityResource"></param>
/// <returns></returns>
internal static ActivityForwardContext CreateRunningContext(TaskViewEntity task,
ProcessModel processModel,
ActivityResource activityResource)
{
return new ActivityForwardContext(task, processModel, activityResource);
}
/// <summary>
/// 创建流程跳转上下文对象
/// </summary>
/// <param name="jumpforwardActivity"></param>
/// <param name="processModel"></param>
/// <param name="processInstance"></param>
/// <param name="activityResource"></param>
/// <returns></returns>
internal static ActivityForwardContext CreateJumpforwardContext(ActivityEntity jumpforwardActivity,
ProcessModel processModel,
ProcessInstanceEntity processInstance,
ActivityResource activityResource)
{
return new ActivityForwardContext(processModel, processInstance, jumpforwardActivity, activityResource);
}