@Override
protected FlowElement convertJsonToElement(JsonNode elementNode, JsonNode modelNode, Map<String, JsonNode> shapeMap) {
UserTask task = Bpmn2Factory.eINSTANCE.createUserTask();// UserTask();
//任务主题
JsonNode processSubject = JsonConverterUtil.getProperty(PROPERTY_USERTASK_SUBJECT, elementNode);
if(processSubject != null && StringUtils.isNotEmpty(processSubject.asText())) {
TaskSubject taskSubject = FixFlowFactory.eINSTANCE.createTaskSubject();
Expression subjectExpression = FixFlowFactory.eINSTANCE.createExpression();
subjectExpression.setName(processSubject.asText());
subjectExpression.setValue(processSubject.asText());
taskSubject.setExpression(subjectExpression);