CommentServiceImpl.java
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package fr.plil.sio.examen.services;
import fr.plil.sio.examen.api.Animal;
import fr.plil.sio.examen.api.Comment;
import fr.plil.sio.examen.api.Owner;
import fr.plil.sio.examen.repositories.CommentRepository;
import java.util.LinkedList;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
/**
* TODO: complete all these methods
*/
@Service
public class CommentServiceImpl implements CommentService {
@Autowired
private CommentRepository commentRepository;
@Override
@Transactional
public Comment add(Owner owner, Animal animal, String text) {
if(owner == null)
throw new IllegalArgumentException("Owner cannot be null");
if(animal == null)
throw new IllegalArgumentException("Animal Cannot be null");
if(text == null)
throw new IllegalArgumentException("Text cannot be null");
Comment comment = new Comment();
comment.setReporter(owner);
comment.setAnimal(animal);
comment.setMessage(text);
commentRepository.save(comment);
return comment;
}
@Override
@Transactional
public void delete(Comment comment) {
if(comment == null)
throw new IllegalArgumentException("comment cannot be null");
if(comment.getId() == null)
throw new IllegalArgumentException("Comment doesn't exists");
commentRepository.delete(comment);
}
@Override
@Transactional(readOnly = true)
public List<Comment> findByAnimal(Animal animal) {
if(animal == null)
throw new IllegalArgumentException("Animal cannot be null");
if(animal.getId() == null)
throw new IllegalArgumentException("Animal doesn't exists");
return commentRepository.findByAnimal(animal);
}
@Override
@Transactional(readOnly = true)
public List<Comment> findByReporter(Owner reporter) {
if(reporter == null)
throw new IllegalArgumentException("reporter cannot be null");
if(reporter.getId() == null)
throw new IllegalArgumentException("reporter doesn't exists");
return commentRepository.findByReporter(reporter);
}
@Override
@Transactional(readOnly = true)
public List<Comment> findByOwner(Owner owner) {
if(owner == null)
throw new IllegalArgumentException("owner cannot be null");
if(owner.getId() == null)
throw new IllegalArgumentException("owner doesn't exists");
List<Animal> animalsOfOwner = owner.getAnimals();
List<Comment> comments = new LinkedList<>();
for(Animal a : animalsOfOwner){
comments.addAll(a.getComments());
}
return comments;
}
}