我需要在REST API中实现子资源
URL将类似于:
https://localhost:8080/v1/student/ {id}?include =地址,资格,登录
因此,地址,资格和登录名是三个子资源,如果我们将其添加为查询参数,则将包括这些子资源。子资源可以是数据库调用或其他服务的REST调用
问题发生在实现方面,我已将@RequestParam List包括在内
所以目前我正在服务类中这样写
public Student getStudentDetail(Integer id ,List<String> include){
Student student = new Student();
// setting student details
for(String itr: include){
if(itr=="address"){
student.setAddress(repo.getAddress(id));
}
if(itr=="qualification"){
student.setQualication(repo.getQualification(id));
}
if(itr=="login"){
student.setLogin(client.getLogin(id));// here client in Rest Call for
}
}
return student;
}
学生班:
@Data
public Class Student{
private String id;
private List<Address> address;
private List<Qualification> qualification;
private Login login;
}
所以在这里,我需要为每个子资源添加条件,请问您可以建议采用哪种更好的方法或任何设计原则。
还有另一种使用反射API在运行时获取存储库方法名称的方法,但这会增加调用的额外开销。
另一种方法可以是:
我可以使用策略设计模式
Abstract Class
public Abstract class Subresource{
public Student getSubresouce(Integer id,Student student){}
}
public class Address extends Subresource{
@Autowired
Databaserepo repo;
public Student getSubresource(Integer id , Student student){
return student.setAddress(repo.getAddress(id));
}
}
public class Login extends Subresource{
@Autowired
RestClient client;
public Student getSubresource(Integer id, Student student){
return student.setLogin(client.getLogin(id));
}
}
但是用这种方法,我无法在服务中编写逻辑
public Student getStudentDetail(Integer id ,List<String> include){
Student student = new Student();
// setting student details
for(String itr: include){
// Need to fill logic
// Help me here to define logic to use strategy oattern
}
return student;
}