How to get current task ID in BPM

Question

Hi guys,
I have a requirement where I need to get the current active UWL task id in BPM context. I  have seen the following code to create a direct execution url for a BPM task.
// begin session
      IUWLSession uwlSession;
      uwlSession = uwlService.beginSession(uwlContext, sessionIdleTimeout);
      uwlContext.setSession(uwlSession);
      IUWLItemManager itemManager = uwlService.getItemManager(uwlContext);
      QueryResult result = itemManager.getItems(uwlContext, null, null);
      ItemCollection items = result.getItems();
      Item item = null;
      for (int i = 0; i < items.size(); i++) {
        item = items.get(i);
        Map params = new HashMap();
        params.put("taskId", item.getExternalId());
        String executionURL = WDURLGenerator.getApplicationURL("sap.com/tc~bpem~wdui~taskinstance", "ATaskExecution", params);
This works fine, but this is looping through all the tasks assigned to a user.  How do I get the current task ID. I want to use the code inside webdynpro application which is caled as a human activity in BPM. When this WebDynpro application is called I would like to know the current task ID.
As an FYI , UWL configuration passes the current task ID as a Dynamic parameter to "sap.com/tcbpemwdui~taskinstance"
application.
Please help if someone can identify how to get this value in my custom WD.
Thanks,
Yomesh.

Answer 1

Yes. there is no API to get the current task.
Try this:
WDProtocolAdapter.getProtocolAdapter().getRequestObject().getParameter("wi_id");
But i still say a bit confused with your requirement.
The task id gets created only upon creation of a task. And you want this current task id in the BPM Process context? How is it possible unless and until some action takes place and the data is passed from WDJ to BPM Context?
Please clear my doubt.