apollo-portal/src/main/java/com/ctrip/framework/apollo/portal/spi/defaultimpl/DefaultUserInfoHolder.java/DefaultUserInfoHolder/getUser
class DefaultUserInfoHolder:  @Override
  public UserInfo getUser() {
    UserInfo userInfo = new UserInfo();
    userInfo.setUserId("apollo");
    userInfo.setName("apollo");
    return userInfo;
  }