com.ant.myteam.dao.RecordDao.java Source code

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Here is the source code for com.ant.myteam.dao.RecordDao.java

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package com.ant.myteam.dao;

import com.ant.myteam.model.RatingRecord;
import com.ant.myteam.model.RatingSong;
import com.ant.myteam.model.Record;
import com.ant.myteam.model.Song;
import java.util.List;
import org.hibernate.Query;
import org.hibernate.SessionFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;
import org.springframework.transaction.annotation.Transactional;

/**
 *
 * @author Darka
 */
@Transactional
@Repository
public class RecordDao {

    @Autowired
    SessionFactory sessionFactory;

    public Record saveRecord(Record record) {
        try {
            sessionFactory.getCurrentSession().save(record);
            return record;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

    public boolean updateRecord(Record record) {
        try {
            sessionFactory.getCurrentSession().update(record);
            return true;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return false;
    }

    public List<Record> findRecordsBySongId(Long songId) {
        Query query = sessionFactory.getCurrentSession().createQuery(
                "FROM Record R WHERE R.song.song_id IN (SELECT S.song_id FROM Song S WHERE S.song_id = :songId)");
        query.setParameter("songId", songId);
        return (List<Record>) query.list();
    }

    public List<Record> findRecordsByUserId(Long userId) {
        Query query = sessionFactory.getCurrentSession().createQuery(
                "FROM Record R WHERE R.user.userId IN (SELECT U.userId FROM User U WHERE U.userId = :userId)");
        query.setParameter("userId", userId);
        return (List<Record>) query.list();
    }

    public boolean rateRecord(RatingRecord ratingRecord) {
        RatingRecord existed = checkExistRatingRecord(ratingRecord);
        try {
            if (existed == null) {
                sessionFactory.getCurrentSession().save(ratingRecord);
            } else {
                existed.setRateValue(ratingRecord.getRateValue());
                sessionFactory.getCurrentSession().update(existed);
            }
            return true;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return false;
    }

    private RatingRecord checkExistRatingRecord(RatingRecord ratingRecord) {
        Query query = sessionFactory.getCurrentSession().createQuery(
                "FROM RatingRecord RR WHERE RR.record.recordId = :recordId AND RR.user.userId = :userId");
        query.setParameter("recordId", ratingRecord.getRecord().getRecordId());
        query.setParameter("userId", ratingRecord.getUser().getUserId());
        return (RatingRecord) query.uniqueResult();
    }

}