topic ActivitiException: Did not assign the operation parameters in Alfresco Archive

ActivitiException: Did not assign the operation parameters

minalghorpade — Mon, 06 May 2013 09:01:06 GMT

Hi … I am using ACTIVITI 5.12.1 . I want to use assign task rest service in my project. I am using restTemplate.exchange method to call this rest service . But somthing is going wrong. RestTemplate is not working for put method . I am getting nullpointerException.error stackTrace is as follow

Re: ActivitiException: Did not assign the operation parameters

jbarrez — Mon, 06 May 2013 09:53:34 GMT

> org.activiti.engine.ActivitiException: Did not assign the operation parameters

The exception is pretty clear: you're trying to do a task operation (claim, complete, etc) but haven't provided the actual operation.

Re: ActivitiException: Did not assign the operation parameters

minalghorpade — Mon, 06 May 2013 12:36:48 GMT

Hi..
Thank you for reply 🙂 .
As mention above I am doing assign task operation , for which I am using this url :- http://localhost:8081/activiti-rest/service/task/713/assign
(713 is task id) . and provideing payload for userId as follows

{
"userId": "kermit"
}

still not getting result. Please help where I am going wrong.

Re: ActivitiException: Did not assign the operation parameters

frederikherema1 — Wed, 08 May 2013 07:22:44 GMT


} else if ("assign".equals(operation)) {
      String userId = null;
      try {
        String startParams = entity.getText();
        JsonNode startJSON = new ObjectMapper().readTree(startParams);
        userId = startJSON.path("userId").getTextValue();
      } catch(Exception e) {
        throw new ActivitiException("Did not assign the operation parameters", e);
      }
      ActivitiUtil.getTaskService().setAssignee(taskId, userId);

Are you still seeing the same exception message? Shouldn't be thrown when userId is present in JSON body.

Re: ActivitiException: Did not assign the operation parameters

minalghorpade — Thu, 09 May 2013 05:16:21 GMT

Hi…
I found solution. The problem was with REST TEMPLATE's PUT method. I am using rest templates.exchange method to call this service .
PUT methos does not accept custom object dirctly . We need to add request body in HTTPHeader.
Later on I found this solution while searching .

Thanks
Minal