chiron.maxscore.service.impl.ClassServiceImpl.java Source code

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Here is the source code for chiron.maxscore.service.impl.ClassServiceImpl.java

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package chiron.maxscore.service.impl;

import chiron.maxscore.dao.ClassDAO;
import chiron.maxscore.entity.Class;
import chiron.maxscore.service.ClassService;
import java.util.List;
import java.util.Map;
import org.hibernate.criterion.DetachedCriteria;
import org.hibernate.criterion.MatchMode;
import org.hibernate.criterion.Restrictions;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

@Service
public class ClassServiceImpl implements ClassService {

    @Autowired
    private ClassDAO classDAO;

    @Override
    public Class getById(int id) {
        return classDAO.getById(id);
    }

    @Transactional
    @Override
    public void save(Class e) {
        classDAO.save(e);
    }

    @Transactional
    @Override
    public void delete(Class e) {
        classDAO.delete(e);
    }

    @Override
    public List<Class> getAll() {
        return classDAO.getAll();
    }

    @Override
    public List<Class> search(int page, int pageSize, Map<String, Object> condition) {
        return classDAO.search((page - 1) * pageSize, pageSize, makeCriteria(condition));
    }

    @Override
    public int count(Map<String, Object> condition) {
        return classDAO.count(makeCriteria(condition));
    }

    private DetachedCriteria makeCriteria(Map<String, Object> condition) {
        DetachedCriteria criteria = DetachedCriteria.forClass(Class.class);

        if (condition == null) {
            return criteria;
        }

        criteria.createAlias("grade", "g");
        criteria.createAlias("g.specialty", "s");
        criteria.createAlias("s.college", "c");

        if (condition.containsKey("college_id")) {
            criteria.add(Restrictions.eq("c.id", condition.get("college_id")));
        } else if (condition.containsKey("specialty_id")) {
            criteria.add(Restrictions.eq("s.id", condition.get("specialty_id")));
        } else if (condition.containsKey("grade_id")) {
            criteria.add(Restrictions.eq("g.id", condition.get("grade_id")));
        }

        if (condition.containsKey("class_name")) {
            criteria.add(
                    Restrictions.ilike("className", condition.get("class_name").toString(), MatchMode.ANYWHERE));
        }

        return criteria;
    }

}