private XElement writeSubWorkflowProcess(SubWorkflowProcess subWorkflowProcess)
{
if (subWorkflowProcess == null)
{
return(null);
}
XElement subflowElement = new XElement(
xN + SUB_WORKFLOW_PROCESS,
new XAttribute(NAME, subWorkflowProcess.Name),
new XAttribute(DISPLAY_NAME, subWorkflowProcess.DisplayName),
new XElement(xN + DESCRIPTION, subWorkflowProcess.Description),
new XElement(xN + WORKFLOW_PROCESS_ID, subWorkflowProcess.WorkflowProcessId)
);
return(subflowElement);
}
protected SubWorkflowProcess createSubWorkflowProcess(XElement xElement)
{
if (xElement == null)
{
return(null);
}
SubWorkflowProcess subFlow = new SubWorkflowProcess(GetAttributeValue(xElement, NAME));
subFlow.DisplayName = GetAttributeValue(xElement, DISPLAY_NAME);
subFlow.Description = GetElementValue(xElement, "{" + FPDL_URI + "}" + DESCRIPTION);
subFlow.WorkflowProcessId = GetElementValue(xElement, "{" + FPDL_URI + "}" + WORKFLOW_PROCESS_ID);
return(subFlow);
}
public void run(IWorkflowSession currentSession, RuntimeContext runtimeContext,
IProcessInstance processInstance, ITaskInstance taskInstance)// throws EngineException, KernelException
{
if (taskInstance.TaskType != TaskTypeEnum.SUBFLOW)
{
throw new EngineException(processInstance, taskInstance.Activity,
"DefaultSubflowTaskInstanceRunner：TaskInstance的任务类型错误，只能为SUBFLOW类型");
}
Task task = taskInstance.Task;
SubWorkflowProcess Subflow = ((SubflowTask)task).SubWorkflowProcess;
WorkflowDefinition subWorkflowDef = runtimeContext.DefinitionService.GetTheLatestVersionOfWorkflowDefinition(Subflow.WorkflowProcessId);
if (subWorkflowDef == null)
{
WorkflowProcess parentWorkflowProcess = taskInstance.WorkflowProcess;
throw new EngineException(taskInstance.ProcessInstanceId, parentWorkflowProcess, taskInstance.TaskId,
"系统中没有Id为" + Subflow.WorkflowProcessId + "的流程定义");
}
WorkflowProcess subWorkflowProcess = subWorkflowDef.getWorkflowProcess();
if (subWorkflowProcess == null)
{
WorkflowProcess parentWorkflowProcess = taskInstance.WorkflowProcess;
throw new EngineException(taskInstance.ProcessInstanceId, parentWorkflowProcess, taskInstance.TaskId,
"系统中没有Id为" + Subflow.WorkflowProcessId + "的流程定义");
}
IPersistenceService persistenceService = runtimeContext.PersistenceService;
//更改任务的状态和开始时间
((TaskInstance)taskInstance).State = TaskInstanceStateEnum.RUNNING;
((TaskInstance)taskInstance).StartedTime = runtimeContext.CalendarService.getSysDate();
persistenceService.SaveOrUpdateTaskInstance(taskInstance);
IProcessInstance subProcessInstance = currentSession.createProcessInstance(subWorkflowProcess.Name, taskInstance);
//初始化流程变量,从父实例获得初始值
Dictionary <String, Object> processVars = ((TaskInstance)taskInstance).AliveProcessInstance.ProcessInstanceVariables;
List <DataField> datafields = subWorkflowProcess.DataFields;
for (int i = 0; datafields != null && i < datafields.Count; i++)
{
DataField df = (DataField)datafields[i];
if (df.DataType == DataTypeEnum.STRING)
{
if (processVars[df.Name] != null && (processVars[df.Name] is String))
{
subProcessInstance.setProcessInstanceVariable(df.Name, processVars[df.Name]);
}
else if (df.InitialValue != null)
{
subProcessInstance.setProcessInstanceVariable(df.Name, df.InitialValue);
}
else
{
subProcessInstance.setProcessInstanceVariable(df.Name, "");
}
}
else if (df.DataType == DataTypeEnum.INTEGER)
{
if (processVars[df.Name] != null && (processVars[df.Name] is Int32))
{
subProcessInstance.setProcessInstanceVariable(df.Name, processVars[df.Name]);
}
else if (df.InitialValue != null)
{
try
{
Int32 intValue = Int32.Parse(df.InitialValue);
subProcessInstance.setProcessInstanceVariable(df.Name, intValue);
}
catch { }
}
else
{
subProcessInstance.setProcessInstanceVariable(df.Name, (Int32)0);
}
}
else if (df.DataType == DataTypeEnum.FLOAT)
{
if (processVars[df.Name] != null && (processVars[df.Name] is float))
{
subProcessInstance.setProcessInstanceVariable(df.Name, processVars[df.Name]);
}
else if (df.InitialValue != null)
{
float floatValue = float.Parse(df.InitialValue);
subProcessInstance.setProcessInstanceVariable(df.Name, floatValue);
}
else
{
subProcessInstance.setProcessInstanceVariable(df.Name, (float)0);
}
}
else if (df.DataType == DataTypeEnum.BOOLEAN)
{
if (processVars[df.Name] != null && (processVars[df.Name] is Boolean))
{
subProcessInstance.setProcessInstanceVariable(df.Name, processVars[df.Name]);
}
else if (df.InitialValue != null)
{
Boolean booleanValue = Boolean.Parse(df.InitialValue);
subProcessInstance.setProcessInstanceVariable(df.Name, booleanValue);
}
else
{
subProcessInstance.setProcessInstanceVariable(df.Name, false);
}
}
else if (df.DataType == DataTypeEnum.DATETIME)
{
//TODO 需要完善一下 （ 父子流程数据传递——时间类型的数据还未做传递-不知道为什么？）
//wmj2003 20090925 补充上了
if (processVars[df.Name] != null && (processVars[df.Name] is DateTime))
{
subProcessInstance.setProcessInstanceVariable(df.Name, processVars[df.Name]);
}
else if (df.InitialValue != null)
{
try
{
DateTime dateTmp = DateTime.Parse(df.InitialValue);
subProcessInstance.setProcessInstanceVariable(df.Name, dateTmp);
}
catch
{
subProcessInstance.setProcessInstanceVariable(df.Name, null);
}
}
}
//TODO 应将下面这句删除！这里还需要吗？应该直接subProcessInstance.run()就可以了。
runtimeContext.PersistenceService.SaveOrUpdateProcessInstance(subProcessInstance);
subProcessInstance.run();
}
}