Using Infoengine for retrieving workflow task information

I don’t know your exact requirement to use info engine to get workflow activity information.

I had similar requiring for one cognos report, where I have to use info engine to get workflow related information using info Engine.  It’s tedious to write webjects to retrieve all workflow related information when you have API’s easily available. I wrote one helper class to retrieve all require information using API. Call helper class from task/xml file, which with return result in infoengine group.

So you can use the xml/task for cognos reports, web service or for any other purpose.

Below is example

<ie:webject name="Create-Group" type="GRP">
    <ie:param name="GROUP_OUT" data="out"/>
</ie:webject>
<%

System.out.println("***************IN TASK ********************");
Group out = getGroup( "out" );
String oID=getParam("objectID").toString();

Group group=ext.report.SummaryReport.getDescription(oID);

Element[] elements = group.getElementArray();

for (int i = 0; i < elements.length; i++) {
    Element e= (Element) elements[i];
    out.addElement ( e );
}

System.out.println("*************** out summary Header********************");

%>

<ie:webject name="Return-Groups" type="GRP">
 <ie:param name="GROUP_IN" data="out"/>
</ie:webject>

public static Group getRoutingHistory(String objectID) {


  System.out.println("WithoutRepeter");
  Group grp = new Group();
  try {
  ReferenceFactory rf = new ReferenceFactory();
  WTReference ref = rf.getReference(objectID);
  WTChangeRequest2 wtChangeRequest2 = (WTChangeRequest2) ref.getObject();


  Enumeration processes = WfEngineHelper.service.getAssociatedProcesses(wtChangeRequest2, null);


  while (processes.hasMoreElements()) {
  WfProcess process = (WfProcess) processes.nextElement();


  NmOid nmOid = new NmOid(process);


  QueryResult status = WorkflowCommands.getRouteStatus(nmOid);


  while (status.hasMoreElements()) {
  Object obj = status.nextElement();


  String activityName = "N/A";
  String assigne = "N/A";
  String role = "N/A";
  String comments = "N/A";
  String vote = "N/A";
  String actStatus = "N/A";
  String completed = "N/A";
  String start = "N/A";
  String signature = "N/A";
  String completedBy = "N/A";
  if (obj.getClass().isAssignableFrom(WorkItem.class)) {


  WorkItem workitem = (WorkItem) obj;
  activityName = ((WfAssignedActivity) workitem.getSource().getObject()).getName();
  assigne = workitem.getOwnership().getOwner().getFullName();
  role = workitem.getRole().getDisplay();


  if (workitem.getStatus().toString().equalsIgnoreCase(WfAssignmentState.COMPLETED.toString())) {
  actStatus = new URLFactory().getHREF("/netmarkets/images/checked.gif");
  } else {
  actStatus = new URLFactory().getHREF("/netmarkets/images/unchecked.gif");
  }
  WfVotingEventAudit wfVotingEventAudit = getAuditEvent(workitem);


  if (wfVotingEventAudit != null) {


  comments = wfVotingEventAudit.getUserComment();
  vote = wfVotingEventAudit.getEventList().toString();


  DateFormat dateFormat = new SimpleDateFormat("dd-MMM-yyy");


  completed = ((wfVotingEventAudit.getTimestamp()) == null) ? "" : dateFormat.format(wfVotingEventAudit.getTimestamp());


  start = ((wfVotingEventAudit.getCreateTimestamp()) == null) ? "" : dateFormat.format(wfVotingEventAudit.getCreateTimestamp());
  signature = getSignature((WTUser) wfVotingEventAudit.getUserRef().getObject());
  completedBy = wfVotingEventAudit.getUserRef().getFullName();


  }


  } else if (obj.getClass().isAssignableFrom(Element.class)) {


  continue;


  } else if (obj.getClass().isAssignableFrom(WfVotingEventAudit.class)) {
  WfVotingEventAudit wfVotingEventAudit = (WfVotingEventAudit) obj;
  activityName = wfVotingEventAudit.getActivityName();
  assigne = wfVotingEventAudit.getAssigneeRef().getFullName();
  role = ((wfVotingEventAudit.getRole() == null) ? "" : wfVotingEventAudit.getRole().getDisplay());
  comments = wfVotingEventAudit.getUserComment();
  vote = wfVotingEventAudit.getEventList().toString();
  actStatus = new URLFactory().getHREF("/netmarkets/images/checked.gif");
  DateFormat dateFormat = new SimpleDateFormat("dd-MMM-yyy");


  completed = ((wfVotingEventAudit.getTimestamp()) == null) ? "N/A" : dateFormat.format(wfVotingEventAudit.getTimestamp());


  start = ((wfVotingEventAudit.getCreateTimestamp()) == null) ? "N/A" : dateFormat.format(wfVotingEventAudit.getCreateTimestamp());
  signature = getSignature((WTUser) wfVotingEventAudit.getUserRef().getObject());
  completedBy = wfVotingEventAudit.getUserRef().getFullName();
  }


  Element element = new Element();


  element.addAtt(new Att("Assigne", assigne));
  element.addAtt(new Att("Role", role));
  comments = ((comments.trim().length() == 0 ? "N/A" : comments));
  System.out.println("Comments-->" + comments);
  element.addAtt(new Att("Comments", comments));
  vote = vote.replace("[", "");
  vote = vote.replace("]", "");
  vote = ((vote.length() == 0 ? "N/A" : vote));
  if (!completed.equalsIgnoreCase("N/A")){
  vote = "Task Completed";
  }
  element.addAtt(new Att("vote", vote));
  element.addAtt(new Att("Status", actStatus));
  element.addAtt(new Att("Completed", completed.replace("-", "")));
  element.addAtt(new Att("start", start.replace("-", "")));
  element.addAtt(new Att("WorkItemName", activityName));
  element.addAtt(new Att("Signature", signature));
  element.addAtt(new Att("completedBy", completedBy));


  System.out.println("Completed by " + completedBy);
  // System.out.println("adding element "+element);
  grp.addElement(element);


  }
  }


  } catch (WTException e) {
  e.printStackTrace();
  } catch (WTRuntimeException e) {
  // TODO Auto-generated catch block
  e.printStackTrace();
  } catch (PropertyVetoException e) {
  // TODO Auto-generated catch block
  e.printStackTrace();
  } catch (IOException e) {
  // TODO Auto-generated catch block
  e.printStackTrace();
  }
  return grp;
  }

Hope it helps !!!

Thanks

Shreyas