public void complete(IActivityInstance targetActivityInstance)
{
ITaskInstanceManager taskInstanceMgr = this.RuntimeContext.TaskInstanceManager;
taskInstanceMgr.completeTaskInstance(this.CurrentWorkflowSession, this.AliveProcessInstance, this, targetActivityInstance);
// taskInstanceMgr.completeTaskInstance(this, targetActivityInstance);
}
//throws EngineException, KernelException
//fireflow.engine.taskinstance.ITaskInstanceManager#createTaskInstances(org.fireflow.kenel.IActivityInstance)
public void createTaskInstances(IToken token, IActivityInstance activityInstance)
{
// TODO Auto-generated method stub
Activity activity = activityInstance.Activity;
IPersistenceService persistenceService = this.RuntimeContext.PersistenceService;
ICalendarService calService = this.RuntimeContext.CalendarService;
IProcessInstance processInstance = token.ProcessInstance;
WorkflowSession workflowSession = (WorkflowSession)((IWorkflowSessionAware)processInstance).CurrentWorkflowSession;
if (workflowSession == null)
{
throw new EngineException(token.ProcessInstance,
activityInstance.Activity,
"The workflow session in process instance can NOT be null");
}
int createdTaskInstanceCount = 0;
for (int i = 0; i < activity.getTasks().Count; i++)
{
Task task = activity.getTasks()[i];
// 1、创建Task实例，并设置工作流系统定义的属性
ITaskInstance taskInstance = this.createTaskInstance(workflowSession, processInstance, task,
activity);
if (taskInstance == null)
{
continue;
}
createdTaskInstanceCount = createdTaskInstanceCount + 1;
TaskTypeEnum taskType = task.TaskType;
((TaskInstance)taskInstance).TaskType=taskType;
((TaskInstance)taskInstance).StepNumber=token.StepNumber;
((TaskInstance)taskInstance).ProcessInstanceId=processInstance.Id;
((TaskInstance)taskInstance).ProcessId=processInstance.ProcessId;
((TaskInstance)taskInstance).Version=processInstance.Version;
((TaskInstance)taskInstance).ActivityId=activity.Id;
if (TaskTypeEnum.FORM==taskType)
{
((TaskInstance)taskInstance).AssignmentStrategy=((FormTask)task).AssignmentStrategy;
((TaskInstance)taskInstance).CanBeWithdrawn=true;
}
else
{
((TaskInstance)taskInstance).CanBeWithdrawn=false;
}
((TaskInstance)taskInstance).CreatedTime=calService.getSysDate();
((TaskInstance)taskInstance).DisplayName=task.DisplayName;
((TaskInstance)taskInstance).Name=task.Name;
((TaskInstance)taskInstance).State=TaskInstanceStateEnum.INITIALIZED;
((TaskInstance)taskInstance).TaskId=task.Id;
((TaskInstance)taskInstance).FromActivityId=token.FromActivityId;
((IRuntimeContextAware)taskInstance).RuntimeContext = this.RuntimeContext;
((IWorkflowSessionAware)taskInstance).CurrentWorkflowSession=workflowSession;
//计算超时
Duration duration = task.Duration;
if (duration != null && calService != null)
{
((TaskInstance)taskInstance).ExpiredTime=calService.dateAfter(calService.getSysDate(), duration);
}
// 2、保存实例taskInstance
persistenceService.SaveOrUpdateTaskInstance(taskInstance);
//3、启动实例
this.startTaskInstance(workflowSession, processInstance, taskInstance);
}
if (createdTaskInstanceCount == 0)
{
//如果是空activity，哪么直接结束
activityInstance.complete(token, null);
}
}
/// <summary>
/// 终止当前TaskInstance，检查是否可以中止当前ActivityInstance，如果可以，
/// 则结束当前ActivityInstance，并触发targetActivityInstance或后继ActivityInstance
/// </summary>
/// <param name="currentSession"></param>
/// <param name="processInstance"></param>
/// <param name="taskInstance"></param>
/// <param name="targetActivityInstance"></param>
public void completeTaskInstance(IWorkflowSession currentSession, IProcessInstance processInstance,
ITaskInstance taskInstance, IActivityInstance targetActivityInstance)
{
//如果TaskInstance处于结束状态，则直接返回
if (taskInstance.State == TaskInstanceStateEnum.COMPLETED || taskInstance.State == TaskInstanceStateEnum.CANCELED)
{
return;
}
if (taskInstance.State == TaskInstanceStateEnum.INITIALIZED)
{
WorkflowProcess process = taskInstance.WorkflowProcess;
throw new EngineException(taskInstance.ProcessInstanceId, process,
taskInstance.TaskId,
"Complete task insatance failed.The state of the task insatnce[id=" + taskInstance.Id + "] is " + taskInstance.State);
}
if (taskInstance.IsSuspended())
{
WorkflowProcess process = taskInstance.WorkflowProcess;
throw new EngineException(taskInstance.ProcessInstanceId, process,
taskInstance.TaskId,
"Complete task insatance failed. The task instance [id=" + taskInstance.Id + "] is suspended");
}
if (targetActivityInstance != null)
{
((TaskInstance)taskInstance).TargetActivityId=targetActivityInstance.Activity.Id;
}
IPersistenceService persistenceService = this.RuntimeContext.PersistenceService;
//第一步，首先结束当前taskInstance
if (!this.taskInstanceCanBeCompleted(currentSession, this.RuntimeContext, processInstance, taskInstance))
{
return;
}
((TaskInstance)taskInstance).State=TaskInstanceStateEnum.COMPLETED;
((TaskInstance)taskInstance).CanBeWithdrawn=false;
((TaskInstance)taskInstance).EndTime=RuntimeContext.CalendarService.getSysDate();
persistenceService.SaveOrUpdateTaskInstance(taskInstance);
//触发相应的事件
TaskInstanceEvent e = new TaskInstanceEvent();
e.Source=taskInstance;
e.WorkflowSession=currentSession;
e.ProcessInstance=processInstance;
e.EventType = TaskInstanceEventEnum.AFTER_TASK_INSTANCE_COMPLETE;
if (this.DefaultTaskInstanceEventListener != null)
{
this.DefaultTaskInstanceEventListener.onTaskInstanceEventFired(e);
}
this.fireTaskInstanceEvent(taskInstance, e);
//第二步，检查ActivityInstance是否可以结束
if (!activityInstanceCanBeCompleted(taskInstance))
{
return;
}
//第三步，尝试结束对应的activityInstance
List<IToken> tokens = persistenceService.FindTokensForProcessInstance(taskInstance.ProcessInstanceId, taskInstance.ActivityId);
// System.out.println("Inside TaskInstance.complete(targetActivityInstance):: tokens.size is "+tokens.Count);
if (tokens == null || tokens.Count == 0)
{
return;//表明activityInstance已经结束了。
}
if (tokens.Count > 1)
{
WorkflowProcess process = taskInstance.WorkflowProcess;
throw new EngineException(taskInstance.ProcessInstanceId, process, taskInstance.TaskId,
"与activityId=" + taskInstance.ActivityId + "对应的token数量(=" + tokens.Count + ")不正确，正确只能为1，因此无法完成complete操作");
}
IToken token = tokens[0];
//stepNumber不相等，不允许执行结束操作。
if (token.StepNumber != taskInstance.StepNumber)
{
return;
}
if (token.IsAlive == false)
{
WorkflowProcess process = taskInstance.WorkflowProcess;
throw new EngineException(taskInstance.ProcessInstanceId, process,
taskInstance.TaskId,
"与activityId=" + taskInstance.ActivityId + "对应的token.alive=false，因此无法完成complete操作");
}
INetInstance netInstance = this.RuntimeContext.KernelManager.getNetInstance(taskInstance.ProcessId, taskInstance.Version);
Object obj = netInstance.getWFElementInstance(taskInstance.ActivityId);
if (obj == null)
{
WorkflowProcess process = taskInstance.WorkflowProcess;
throw new EngineException(taskInstance.ProcessInstanceId, process, taskInstance.TaskId,
"系统没有找到与activityId=" + taskInstance.ActivityId + "对应activityInstance，无法执行complete操作。");
}
token.ProcessInstance = processInstance;
((IActivityInstance)obj).complete(token, targetActivityInstance);
}
public void completeWorkItem(IWorkItem workItem, IActivityInstance targetActivityInstance, String comments)
{
if (workItem.State != WorkItemEnum.RUNNING)
{
TaskInstance thisTaskInst = (TaskInstance)workItem.TaskInstance;
// System.out.println("WorkItem的当前状态为"+this.State+"，不可以执行complete操作。");
throw new EngineException(thisTaskInst.ProcessInstanceId, thisTaskInst.WorkflowProcess, thisTaskInst.TaskId,
"Complete work item failed . The state of the work item [id=" + workItem.Id + "] is " + workItem.State);
}
if (workItem.TaskInstance.IsSuspended())
{
TaskInstance thisTaskInst = (TaskInstance)workItem.TaskInstance;
WorkflowProcess process = thisTaskInst.WorkflowProcess;
throw new EngineException(thisTaskInst.ProcessInstanceId, process, thisTaskInst.TaskId,
"Complete work item failed. The correspond task instance [id=" + thisTaskInst.Id + "] is suspended");
}
IPersistenceService persistenceService = RuntimeContext.PersistenceService;
((WorkItem)workItem).Comments=comments;
((WorkItem)workItem).State = WorkItemEnum.COMPLETED;
((WorkItem)workItem).EndTime=RuntimeContext.CalendarService.getSysDate();
persistenceService.SaveOrUpdateWorkItem(workItem);
// 触发AFTER_WORKITEM_COMPLETE事件
TaskInstanceEvent e = new TaskInstanceEvent();
e.Source=workItem.TaskInstance;
e.WorkflowSession=((IWorkflowSessionAware)workItem).CurrentWorkflowSession;
e.ProcessInstance=((TaskInstance)workItem.TaskInstance).AliveProcessInstance;
e.EventType = TaskInstanceEventEnum.AFTER_WORKITEM_COMPLETE;
if (this.DefaultTaskInstanceEventListener != null)
{
this.DefaultTaskInstanceEventListener.onTaskInstanceEventFired(e);
}
this.fireTaskInstanceEvent(workItem.TaskInstance, e);
((TaskInstance)workItem.TaskInstance).complete(targetActivityInstance);
}
//fireflow.engine.taskinstance.ITaskInstanceManager#archiveTaskInstances(org.fireflow.kenel.IActivityInstance)
public void archiveTaskInstances(IActivityInstance activityInstance)
{
// TODO Auto-generated method stub
}