AdmMono/src/com/rjconsultores/ventaboletos/dao/hibernate/VoucherHibernateDAO.java

package com.rjconsultores.ventaboletos.dao.hibernate;

import java.util.Date;
import java.util.List;

import org.hibernate.Criteria;
import org.hibernate.Query;
import org.hibernate.SessionFactory;
import org.hibernate.criterion.Restrictions;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Repository;

import com.rjconsultores.ventaboletos.dao.VoucherDAO;
import com.rjconsultores.ventaboletos.entidad.Voucher;

@SuppressWarnings("unchecked")
@Repository("voucherDAO")
public class VoucherHibernateDAO extends GenericHibernateDAO<Voucher, Long> implements VoucherDAO {

    @Autowired
    public VoucherHibernateDAO(@Qualifier("sessionFactory") SessionFactory factory) {
        setSessionFactory(factory);
    }

	@Override
    public List<Voucher> obtenerTodos() {
        Criteria c = getSession().createCriteria(getPersistentClass());
        c.add(Restrictions.eq(ACTIVO, Boolean.TRUE));

        return c.list();
    }

	@Override
	public List<Voucher> buscarConsulta(Long voucherId, 
										String numContrato, 
										String nit, 
										String nomeTransportadora,
										Date dataInicial, 
										Date dataFinal, 
										Integer origemId, 
										Integer destinoId) {
		
		StringBuilder hql = new StringBuilder();
        hql.append("SELECT v, ori.descParada AS descOrigem , des.descParada AS descDestino ");
        hql.append("FROM Voucher v ");        
        
        setJoins( numContrato, 
   			 	  nit, 
   			 	  nomeTransportadora,
   			 	  hql);
        
        hql.append("WHERE v.activo = 1 ");
        
        setClausulas(voucherId, 
        			 numContrato, 
        			 nit, 
        			 nomeTransportadora, 
        			 dataInicial, 
        			 dataFinal, 
        			 origemId, 
        			 destinoId, 
        			 hql);
        
        hql.append("ORDER BY voucherId ");
        
        Query query = getSession().createQuery(hql.toString());
        
        setParametros(voucherId, 
        			  numContrato, 
        			  nit, 
        			  nomeTransportadora, 
        			  dataInicial, 
        			  dataFinal, 
        			  origemId, 
        			  destinoId,
        			  query);

        return query.list();
	}

	private void setJoins(String numContrato, String nit, String nomeTransportadora, StringBuilder hql) {
		hql.append("LEFT JOIN Parada ori ON v.origenId = ori.origenId ");
        hql.append("LEFT JOIN Parada des ON v.origenId = des.origenId ");
		
	}

	private void setClausulas(Long voucherId, String numContrato, String nit, String nomeTransportadora,
			Date dataInicial, Date dataFinal, Integer origemId, Integer destinoId, StringBuilder hql) {
		if(voucherId != null ){
			hql.append(" AND v.voucherId = :voucherId ");
		}
        
        if(numContrato != null ){
			hql.append(" AND v.voucherId = :voucherId ");
		}
        
        if(nit != null ){
			hql.append(" AND v.voucherId = :voucherId ");
		}
        
        if(nomeTransportadora != null ){
			hql.append(" AND v.voucherId = :voucherId ");
		}
        
        if(dataInicial != null ){
			hql.append(" AND v.dataValidade >= :dataInicial ");
		}
        
        if(dataFinal != null ){
        	hql.append(" AND v.dataValidade <= :dataFinal ");
		}
        
        if(origemId != null ){
			hql.append(" AND v.origenId = :origemId ");
		}
        
        if(destinoId != null ){
			hql.append(" AND v.destinoId = :destinoId ");
		}
	}

	private void setParametros(Long voucherId, 
			String numContrato, 
			String nit, 
			String nomeTransportadora,
			Date dataInicial, 
			Date dataFinal, 
			Integer origemId, 
			Integer destinoId, 
			Query query) {
		
		if(voucherId != null ){
        	query.setLong("voucherId", voucherId);
        }
        
        if(numContrato != null ){
        	query.setString("numContrato", numContrato);
		}
        
        if(nit != null ){
        	query.setString("nit", nit);
		}
        
        if(nomeTransportadora != null ){
        	query.setString("nomeTransportadora", nomeTransportadora);
		}
        
        if(dataInicial != null ){
        	query.setDate("dataInicial", dataInicial);
		}
        
        if(dataFinal != null ){
        	query.setDate("dataFinal", dataFinal);
		}
        
        if(origemId != null ){
        	query.setInteger("origemId", origemId);
		}
        
        if(destinoId != null ){
        	query.setInteger("destinoId", destinoId);
		}
	}
}