apollo-portal/src/main/java/com/ctrip/framework/apollo/portal/spi/defaultimpl/DefaultRoleInitializationService.java/DefaultRoleInitializationService/createRole
class DefaultRoleInitializationService:  private Role createRole(String roleName, String operator) {
    Role role = new Role();
    role.setRoleName(roleName);
    role.setDataChangeCreatedBy(operator);
    role.setDataChangeLastModifiedBy(operator);
    return role;
  }