/// <summary>验证workflow process是否完整正确。</summary>
/// <returns>null表示流程正确；否则表示流程错误，返回值是错误原因</returns>
public String validate()
{
String errHead = "Workflow process is invalid：";
if (this.StartNode == null)
{
return(errHead + "must have one start node");
}
if (this.StartNode.LeavingTransitions.Count == 0)
{
return(errHead + "start node must have leaving transitions.");
}
List <Activity> activities = this.Activities;
for (int i = 0; i < activities.Count; i++)
{
Activity activity = activities[i];
String theName = (String.IsNullOrEmpty(activity.DisplayName)) ? activity.Name : activity.DisplayName;
if (activity.EnteringTransition == null)
{
return(errHead + "activity[" + theName + "] must have entering transition.");
}
if (activity.LeavingTransition == null)
{
return(errHead + "activity[" + theName + "] must have leaving transition.");
}
//check tasks
List <Task> taskList = activity.getTasks();
for (int j = 0; j < taskList.Count; j++)
{
Task task = (Task)taskList[j];
if (task.TaskType == TaskTypeEnum.FORM)
{
FormTask formTask = (FormTask)task;
if (formTask.Performer == null)
{
return(errHead + "FORM-task[id=" + task.Id + "] must has a performer.");
}
}
else if (task.TaskType == TaskTypeEnum.TOOL)
{
ToolTask toolTask = (ToolTask)task;
if (toolTask.Application == null)
{
return(errHead + "TOOL-task[id=" + task.Id + "] must has a application.");
}
}
else if (task.TaskType == TaskTypeEnum.SUBFLOW)
{
SubflowTask subflowTask = (SubflowTask)task;
if (subflowTask.SubWorkflowProcess == null)
{
return(errHead + "SUBFLOW-task[id=" + task.Id + "] must has a subflow.");
}
}
else
{
return(errHead + " unknown task type of task[" + task.Id + "]");
}
}
}
List <Synchronizer> synchronizers = this.Synchronizers;
for (int i = 0; i < synchronizers.Count; i++)
{
Synchronizer synchronizer = synchronizers[i];
String theName = (synchronizer.DisplayName == null || synchronizer.DisplayName.Equals("")) ? synchronizer.Name : synchronizer.DisplayName;
if (synchronizer.EnteringTransitions.Count == 0)
{
return(errHead + "synchronizer[" + theName + "] must have entering transition.");
}
if (synchronizer.LeavingTransitions.Count == 0)
{
return(errHead + "synchronizer[" + theName + "] must have leaving transition.");
}
}
List <EndNode> endnodes = this.EndNodes;
for (int i = 0; i < endnodes.Count; i++)
{
EndNode endnode = endnodes[i];
String theName = (endnode.DisplayName == null || endnode.DisplayName.Equals("")) ? endnode.Name : endnode.DisplayName;
if (endnode.EnteringTransitions.Count == 0)
{
return(errHead + "end node[" + theName + "] must have entering transition.");
}
}
List <Transition> transitions = this.Transitions;
for (int i = 0; i < transitions.Count; i++)
{
Transition transition = transitions[i];
String theName = (transition.DisplayName == null || transition.DisplayName.Equals("")) ? transition.Name : transition.DisplayName;
if (transition.FromNode == null)
{
return(errHead + "transition[" + theName + "] must have from node.");
}
if (transition.ToNode == null)
{
return(errHead + "transition[" + theName + "] must have to node.");
}
}
//check datafield 不再需要 DataType不肯能为空
//List<DataField> dataFieldList = this.DataFields;
//for (int i = 0; i < dataFieldList.Count; i++)
//{
// DataField df = dataFieldList[i];
// if (df.DataType == DataTypeEnum. null)
// {
// return errHead + "unknown data type of datafield[" + df.Id + "]";
// }
//}
return(null);
}
// throws EngineException, KernelException
/// <summary>分配， 按照当前任务的参与者插入工单</summary>
/// <param name="currentSession"></param>
/// <param name="processInstance"></param>
/// <param name="runtimeContext"></param>
/// <param name="taskInstance"></param>
/// <param name="formTask"></param>
/// <param name="part"></param>
/// <param name="dynamicAssignmentHandler"></param>
protected void assign(IWorkflowSession currentSession, IProcessInstance processInstance, RuntimeContext runtimeContext, ITaskInstance taskInstance, FormTask formTask, Participant part, DynamicAssignmentHandler dynamicAssignmentHandler)
{
//如果有指定的Actor，则按照指定的Actor分配任务
if (dynamicAssignmentHandler != null)
{
dynamicAssignmentHandler.assign((IAssignable)taskInstance, part.Name);
}
else
{
IPersistenceService persistenceService = runtimeContext.PersistenceService;
List<ITaskInstance> taskInstanceList = persistenceService.FindTaskInstancesForProcessInstance(taskInstance.ProcessInstanceId, taskInstance.ActivityId);
ITaskInstance theLastCompletedTaskInstance = null;
for (int i = 0; taskInstanceList != null && i < taskInstanceList.Count; i++)
{
ITaskInstance tmp = (ITaskInstance)taskInstanceList[i];
if (tmp.Id.Equals(taskInstance.Id)) continue;
if (!tmp.TaskId.Equals(taskInstance.TaskId)) continue;
if (tmp.State != TaskInstanceStateEnum.COMPLETED) continue;
if (theLastCompletedTaskInstance == null)
{
theLastCompletedTaskInstance = tmp;
}
else
{
if (theLastCompletedTaskInstance.StepNumber < tmp.StepNumber)
{
theLastCompletedTaskInstance = tmp;
}
}
}
//如果是循环且LoopStrategy==REDO，则分配个上次完成该工作的操作员
if (theLastCompletedTaskInstance != null && (LoopStrategyEnum.REDO==formTask.LoopStrategy || currentSession.isInWithdrawOrRejectOperation()))
{
List<IWorkItem> workItemList = persistenceService.FindCompletedWorkItemsForTaskInstance(theLastCompletedTaskInstance.Id);
ITaskInstanceManager taskInstanceMgr = runtimeContext.TaskInstanceManager;
for (int k = 0; k < workItemList.Count; k++)
{
IWorkItem completedWorkItem = (IWorkItem)workItemList[k];
IWorkItem newFromWorkItem = taskInstanceMgr.createWorkItem(currentSession, processInstance, taskInstance, completedWorkItem.ActorId);
newFromWorkItem.claim();//并自动签收
}
}
else
{
IBeanFactory beanFactory = runtimeContext.BeanFactory;
//从spring中获取到对应任务的Performer，创建工单
//201004 add lwz 参与者通过业务接口实现默认获取用户
switch (part.AssignmentType)
{
case AssignmentTypeEnum.Current:
runtimeContext.AssignmentBusinessHandler.assignCurrent(
currentSession, processInstance, (IAssignable)taskInstance);
break;
case AssignmentTypeEnum.Role:
runtimeContext.AssignmentBusinessHandler.assignRole(
currentSession, processInstance, (IAssignable)taskInstance, part.PerformerValue);
break;
case AssignmentTypeEnum.Agency:
runtimeContext.AssignmentBusinessHandler.assignAgency(
currentSession, processInstance, (IAssignable)taskInstance, part.PerformerValue);
break;
case AssignmentTypeEnum.Fixed:
runtimeContext.AssignmentBusinessHandler.assignFixed(
currentSession, processInstance, (IAssignable)taskInstance, part.PerformerValue);
break;
case AssignmentTypeEnum.Superiors:
runtimeContext.AssignmentBusinessHandler.assignSuperiors(
currentSession, processInstance, (IAssignable)taskInstance);
break;
default:
IAssignmentHandler assignmentHandler = (IAssignmentHandler)beanFactory.GetBean(part.AssignmentHandler);
//modified by wangmj 20090904
((IAssignmentHandler)assignmentHandler).assign((IAssignable)taskInstance, part.PerformerValue);
break;
}
}
}
}