com.epam.training.taranovski.web.project.repository.implementation.UserRepositoryImplementation.java Source code

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Here is the source code for com.epam.training.taranovski.web.project.repository.implementation.UserRepositoryImplementation.java

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package com.epam.training.taranovski.web.project.repository.implementation;

import com.epam.training.taranovski.web.project.domain.User;
import com.epam.training.taranovski.web.project.repository.UserRepository;
import com.epam.training.taranovski.web.project.service.EncryptionService;
import java.util.List;
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.NoResultException;
import javax.persistence.TypedQuery;
import org.apache.log4j.Logger;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;

/**
 *
 * @author Alyx
 */
@Repository
public class UserRepositoryImplementation implements UserRepository {

    @Autowired
    private EncryptionService encryptionService;

    @Autowired
    private EntityManagerFactory entityManagerFactory;

    @Override
    public String getTypeOf(int id) {
        throw new UnsupportedOperationException("Not supported yet.");
        //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public User getById(int id) {
        throw new UnsupportedOperationException("Not supported yet.");
        //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public List<User> getAll() {
        throw new UnsupportedOperationException("Not supported yet.");
        //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public boolean create(User user) {
        EntityManager em = entityManagerFactory.createEntityManager();
        boolean success = false;

        try {
            em.getTransaction().begin();
            em.persist(user);
            em.getTransaction().commit();
            success = true;
        } catch (RuntimeException e) {
            Logger.getLogger(OfferBidRepositoryImplementation.class.getName()).info(e);
            success = false;
        } finally {
            if (em.getTransaction().isActive()) {
                em.getTransaction().rollback();
            }
            em.close();
        }

        return success;
    }

    @Override
    public boolean update(User user) {
        throw new UnsupportedOperationException("Not supported yet.");
        //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public boolean delete(User user) {
        throw new UnsupportedOperationException("Not supported yet.");
        //To change body of generated methods, choose Tools | Templates.
    }

    /**
     *
     * @param name
     * @param password
     * @return
     */
    @Override
    public User getByNameAndPassword(String name, String password) {
        EntityManager em = entityManagerFactory.createEntityManager();
        User user = null;
        boolean exists = false;

        try {
            em.getTransaction().begin();

            TypedQuery<User> query = em.createNamedQuery("User.findByUserLoginAndPassword", User.class);
            query.setParameter("login", name);
            query.setParameter("password", encryptionService.encrypt(password));

            user = query.getSingleResult();

            em.getTransaction().commit();
            exists = true;
        } catch (NoResultException ex) {
            Logger.getLogger(OfferBidRepositoryImplementation.class.getName()).info(ex);
            exists = false;
        } finally {
            if (em.getTransaction().isActive()) {
                em.getTransaction().rollback();
            }
            em.close();
        }

        if (exists) {
            return user;
        } else {
            return null;
        }

    }

    @Override
    public boolean nameExistsInDB(String name) {
        EntityManager em = entityManagerFactory.createEntityManager();
        boolean exists = false;

        try {
            em.getTransaction().begin();

            TypedQuery<User> query = em.createNamedQuery("User.findByLogin", User.class);
            query.setParameter("login", name);

            query.getSingleResult();

            em.getTransaction().commit();
            exists = true;
        } catch (NoResultException ex) {
            Logger.getLogger(OfferBidRepositoryImplementation.class.getName()).info(ex);
            exists = false;
        } finally {
            if (em.getTransaction().isActive()) {
                em.getTransaction().rollback();
            }
            em.close();
        }

        return exists;
    }

}