"sebastian.s" wrote:
Your process definition got lost. Can you repost it using the code-tags? Also please provide a unit test to show how you invoke the API.
Thanks Sebastian. Infos below:
process definition : (Same as examples/taskform)
<?xml version="1.0" encoding="UTF-8"?>
<process name="VacationRequest" xmlns="http://jbpm.org/4.0/jpdl">
<start form="org/jbpm/examples/taskform/request_vacation.ftl" g="16,56,48,48" name="start">
<transition to="verify_request"/>
</start>
<task candidate-users="mike,peter" form="org/jbpm/examples/taskform/verify_request.ftl" g="96,54,178,52" name="verify_request">
<transition g="-34,9" name="reject" to="vacation_rejected"/>
<transition g="-46,-26" name="accept" to="vacation_accepted"/>
</task>
<end g="306,16,48,48" name="vacation_accepted"/>
<end g="306,96,48,48" name="vacation_rejected"/>
</process>
I am trying to get all history information of an process instance using Servlet and JSP. Codes below :
ProcessManager:
public ProcessInstaticeActivityInfo getActivityCoordinatesInfo(String processInstanceId) {
ProcessDefinitionImpl processDefinition = (ProcessDefinitionImpl) this
.getProcessDefinitionByProcessInstanceId(processInstanceId);
String pdId = processDefinition.getId();
List<ActivityInfo> activeCoordinates = new ArrayList<ActivityInfo>();
List<ActivityInfo> coordinateList = new ArrayList<ActivityInfo>();
{
ActivityInfo activityInfo = new ActivityInfo(processDefinition.getInitial().getCoordinates());
coordinateList.add(activityInfo);
List<HistoryActivityInstance> activities = historyService.createHistoryActivityInstanceQuery()
.executionId(processInstanceId).list();
for (HistoryActivityInstance activity : activities) {
String activityName = activity.getActivityName();
activityInfo = new ActivityInfo(repositoryService.getActivityCoordinates(pdId, activityName));
activityInfo.setActivityInstance(activity);
coordinateList.add(activityInfo);
}
}
HistoryProcessInstance hpi = getHistoryProcessInstancByProcessInstanceId(processInstanceId);
String endActivityName = ((HistoryProcessInstanceImpl) hpi).getEndActivityName();
if (endActivityName != null) {
ActivityCoordinates coordinates = repositoryService.getActivityCoordinates(pdId, endActivityName);
activeCoordinates.add(new ActivityInfo(coordinates));
} else {
Set<String> activityNames = executionService.findExecutionById(processInstanceId)
.findActiveActivityNames();
for (String activityName : activityNames) {
ActivityCoordinates coordinates = repositoryService.getActivityCoordinates(pdId, activityName);
activeCoordinates.add(new ActivityInfo(coordinates));
}
}
return new ProcessInstaticeActivityInfo(activeCoordinates, coordinateList);
}
Servlet:
public void execute(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
{
ProcessManager pm = new ProcessManager();
String taskId =
request.getParameter("taskid");
String piId = request.getParameter("pid");
ProcessInstaticeActivityInfo processInstaticeActivityInfo = pm.getActivityCoordinatesInfo(piId);
request.setAttribute("activeActivityInfos", processInstaticeActivityInfo.getActiveActivityInfos());
request.setAttribute("processedActivityInfos", processInstaticeActivityInfo.getProcessedActivityInfos());
request.setAttribute("pm",pm);
response.setContentType("text/html;charset=UTF-8");
RequestDispatcher dispatcher = request.getRequestDispatcher("st_view.jsp");
dispatcher.forward(request, response);
}
jsp:
ProcessManager pm = (ProcessManager)request.getAttribute("pm");
int id = 0;
List<ActivityInfo> processedActivityInfos = (List<ActivityInfo>)request.getAttribute("processedActivityInfos"); ;
List<ActivityInfo> activeActivityInfos = (List<ActivityInfo>)request.getAttribute("activeActivityInfos");
ActivityCoordinates coordinates;
HistoryActivityInstance activityInstance;
for(ActivityInfo info : processedActivityInfos){
coordinates = info.getCoordinates();
activityInstance = info.getActivityInstance();
String elId = "_pai_" + (++id);
String title = activityInstance==null?"":activityInstance.getActivityName();
StringBuffer position = new StringBuffer();
position.append("left:").append(coordinates.getX()+2).append("px;");
position.append("top:").append(coordinates.getY()+2).append("px;");
position.append("height:").append(coordinates.getHeight()-10).append("px;");
position.append("width:").append(coordinates.getWidth()-10).append("px;");
StringBuffer text = new StringBuffer();
if (activityInstance instanceof HistoryDecisionInstanceImpl) {
text.append("<b>CompleteTime:</b> ").append(activityInstance.getEndTime());
String transitionName = ((HistoryActivityInstanceImpl) activityInstance).getTransitionName();
if("completed".equals(transitionName)){
ProcessDefinition pd = pm.getProcessDefinitionByProcessInstanceId(request.getParameter("piId"));
if(pd!=null){
Activity activity = ((ProcessDefinitionImpl)pd).getActivitiesMap().get(activityInstance.getActivityName());
if(activity!=null){
text.append("<br/><b>Transaction:</b> ").append(activity.getDefaultOutgoingTransition().getName());
}
}
} else {
text.append("<br/><b>Transaction:</b> ").append(transitionName);
}
} else if (activityInstance instanceof HistoryTaskInstanceImpl) {
HistoryTaskInstanceImpl taskInstanceImpl = (HistoryTaskInstanceImpl) activityInstance;
text.append("<b>Assignee</b>: ").append(taskInstanceImpl.getHistoryTask().getAssignee());
text.append("<br/><b>Complete Time:</b> ").append(activityInstance.getEndTime());
String transitionName = ((HistoryActivityInstanceImpl) activityInstance).getTransitionName();
if("completed".equals(transitionName)){
ProcessDefinition pd = pm.getProcessDefinitionByProcessInstanceId(request.getParameter("piId"));
if(pd!=null){
Activity activity = ((ProcessDefinitionImpl)pd).getActivitiesMap().get(activityInstance.getActivityName());
if(activity!=null){
text.append("<br/><b>Transaction:</b> ").append(activity.getDefaultOutgoingTransition().getName());
}
}
} else {
text.append("<br/><b>Transaction:</b> ").append(transitionName);
}
List<HistoryComment> comments = pm.getTaskComments(taskInstanceImpl.getHistoryTask().getId());
if(comments.size()>0){ // 表示最新的comment
text.append("<br/><br/><b>Comments:</b> ").append(comments.get(comments.size()-1).getMessage());
}
}
