com.epam.ipodromproject.repository.jpa.JPAUserRepository.java Source code

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Here is the source code for com.epam.ipodromproject.repository.jpa.JPAUserRepository.java

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package com.epam.ipodromproject.repository.jpa;

import com.epam.ipodromproject.domain.BetResult;
import com.epam.ipodromproject.domain.User;
import com.epam.ipodromproject.repository.UserRepository;
import java.util.List;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.persistence.Query;
import javax.persistence.TypedQuery;
import javax.transaction.Transactional;
import org.springframework.stereotype.Repository;

/**
 *
 * @author Oleh
 */
@Repository("userRepository")
public class JPAUserRepository implements UserRepository {

    @PersistenceContext
    EntityManager entityManager;

    public JPAUserRepository() {
    }

    @Override
    public User getUserById(Long id) {
        return entityManager.find(User.class, id);
    }

    @Override
    public Long save(User user) {
        entityManager.persist(user);
        return user.getId();
    }

    @Override
    public Long update(User user) {
        entityManager.merge(user);
        return user.getId();
    }

    @Override
    public boolean delete(User user) {
        entityManager.remove(user);
        return true;
    }

    @Override
    public User getUserByUsername(String username) {
        TypedQuery<User> query = entityManager.createNamedQuery("User.findByUsername", User.class);
        query.setParameter("username", username);
        return query.getSingleResult();
    }

    @Override
    public void cancelBetsByCompetition(Long competitionID) {
        Query queryForUsers = entityManager.createNamedQuery("User.findMoneyBetByUsersByCompetition");
        queryForUsers.setParameter("competitionID", competitionID);
        queryForUsers.setParameter("betResult", BetResult.NOT_CONSIDERED);
        List<Object> result = queryForUsers.getResultList();
        Query query = entityManager.createNamedQuery("Person.returnMoneyToPerson");
        for (Object objects : result) {
            Object[] resultRow = (Object[]) objects;
            query.setParameter("id", (Long) resultRow[0]);
            query.setParameter("moneyReturned", (Double) resultRow[1]);
            query.executeUpdate();
        }

    }

    @Override
    public List<User> getUsersByPartOfName(String partOfName, int startingResult, int resultsCount, boolean enabled,
            boolean unblocked) {
        TypedQuery<User> query = entityManager.createNamedQuery("User.getUsersPageByPartOfNameAndEnabled",
                User.class);
        query.setParameter("code", "%" + partOfName + "%");
        query.setParameter("enabled", enabled);
        query.setParameter("blocked", !unblocked);
        return query.setMaxResults(resultsCount).setFirstResult(startingResult).getResultList();
    }

    @Override
    public double getTotalMoneyLost(User user) {
        return getTotalMoneyByResult(user, BetResult.LOST);
    }

    @Override
    public double getTotalMoneyWon(User user) {
        return getTotalMoneyByResult(user, BetResult.WON);
    }

    private double getTotalMoneyByResult(User user, BetResult betResult) {
        TypedQuery<Double> query = entityManager.createNamedQuery("User.findTotalMoneyByUsernameAndResult",
                Double.class);
        query.setParameter("user", user);
        query.setParameter("betResult", betResult);
        double moneyWon = 0;
        try {
            moneyWon = query.getSingleResult();
        } catch (Exception e) {
        }
        return moneyWon;
    }

    @Override
    public long getTotalUsers(String partOfName, boolean enabled, boolean unblocked) {
        TypedQuery<Long> query = entityManager.createNamedQuery("User.getTotalUsersByPartOfNameAndEnabled",
                Long.class);
        query.setParameter("code", "%" + partOfName + "%");
        query.setParameter("enabled", enabled);
        query.setParameter("blocked", !unblocked);
        long totalUsers = 0;
        try {
            totalUsers = query.getSingleResult();
        } catch (Exception e) {
        }
        return totalUsers;
    }

}