Export Data with built in Rest Workitem Handler

Export Data with built in Rest Workitem Handler

• eighth-business-application-service: Project copied from seventh-business-application-service and api endpoint added for Rest Workitem Handler.
• eighth-business-central-kjar: Project copied from seventh-business-central-kjar and modified to use Rest Workitem Handler.

Using Workitems is an important part of a jBPM business process. There are several built in workitems in the jBPM distribution for sending emails, making rest calls, and the like.

A REST call can be used to make a callback to the Spring jBPM application to retrieve the process data, or do any other function, at any point in the business process.

A callback enpoint is created in the eighth-business-applucation-service application to handle a rest callback from the jBPM process. It is made as a POST operation and receives the user login and EmployeeEvaluation data.

@PostMapping("/datamodel")
public ResponseEntity<Void> datamodelCallback(Principal principal, @RequestBody EmployeeEvaluation employeeEvaluation) throws Exception {
    logger.info("Principal: {}", principal);
    logger.info("EmployeeEvaluation: {}, {}, {}, {}", 
            employeeEvaluation.getEmployee(), 
            employeeEvaluation.getSelfEval(), 
            employeeEvaluation.getPmEval(), 
            employeeEvaluation.getHrEval()
            );
    return ResponseEntity.ok().build();
}

A REST Workitem handler is installed in the business process and added to the process at the end of the flow. The URL is set to the spring application process endpoint, the Method is set to POST, the Content is set as employeeEvaluation, and a ContentType is added as application/json.

When executed the business process calls back to the spring application and sends the final evaluation data.