Java OO Kata 30/04/17

java-oo-kata-1.java

public interface IEntity {
}

public interface IWithName {
    public String getName();
    public void setName(String name);
}

public interface INamedEntity extends IEntity, IWithName {
}

public interface IOperations<T> {
    public T findOne(String id);
    public List<T> findAll();
    public T create(T resource);
    public void update(T resource);
}

public interface IService<T> extends IOperations<T> {
    public List<T> findInIds(List<String> ids);
}

public abstract class AbstractService<T> implements IService<T>{

    public T findOne(String id) { return null; }
    public List<T> findAll() { return null; }
    public T create(T resource) { return null;}
    public void update(T resource) {}

}

@Service
public class PipeServiceImpl extends AbstractService<Pipe>{

    @Override
    public Pipe findOne(String id) {
        return null;
    }

    @Override
    public List<Pipe> findAll() {
        List<Pipe> pipes = new ArrayList<>();
        Pipe pipe = new Pipe();
        pipe.setName("Ruth");
        pipes.add(pipe);
        return pipes;
    }

    @Override
    public Pipe create(Pipe resource) {
        return null;
    }

    @Override
    public void update(Pipe resource) {

    }

    @Override
    public List<Pipe> findInIds(List<String> ids) {
        return null;
    }
}

public class Pipe implements INamedEntity {

    private String name;

    @Override
    public String getName() {
        return name;
    }

    @Override
    public void setName(String name) {
        this.name = name;
    }
}


@Controller
@RequestMapping(value = "/pipe")
public class PipeController {

    @Autowired
    private IService pipeService;

    @RequestMapping(method = RequestMethod.GET)
    @ResponseBody
    public String findAll(){
        List<Pipe> results = pipeService.findAll();
        return Integer.toString(results.size());
    }

}