/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2011, Red Hat, Inc., and individual contributors
 * as indicated by the @author tags. See the copyright.txt file in the
 * distribution for a full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

package org.jboss.as.testsuite.integration.jpa.multiRow;

import javax.annotation.Resource;
import javax.ejb.SessionContext;
import javax.ejb.Stateful;
import javax.ejb.TransactionManagement;
import javax.ejb.TransactionManagementType;
import javax.persistence.EntityManager;
import javax.persistence.NoResultException;
import javax.persistence.PersistenceContext;
import javax.persistence.Query;
import javax.transaction.UserTransaction;

/**
 * stateful session bean
 *
 * @author Scott Marlow
 */
@Stateful
@TransactionManagement(TransactionManagementType.BEAN)
public class SFSB1 {
    @PersistenceContext(unitName = "mypc")
        EntityManager em;

    @Resource
    SessionContext sessionContext;

    /**
     * create the specified number of employees
     * @param name
     * @param address
     * @param count
     */
    public void createEmployee(String name, String address, int startAt, int count) {

        UserTransaction tx1 = sessionContext.getUserTransaction();
        try {
            tx1.begin();
            em.joinTransaction();
            for (int id = startAt; id < count; id++) {
                Employee emp = new Employee();
                emp.setId(id);
                emp.setAddress(address + count);
                emp.setName(name + count);
                em.persist(emp);
                Employee2 emp2 = new Employee2();
                emp2.setId(id);
                emp2.setAddress(address + count);
                emp2.setName(name + count);
                em.persist(emp2);
                Employee3 emp3 = new Employee3();
                emp3.setId(id);
                emp3.setAddress(address + count);
                emp3.setName(name + count);
                em.persist(emp3);
                Employee4 emp4 = new Employee4();
                emp4.setId(id);
                emp4.setAddress(address + count);
                emp4.setName(name + count);
                em.persist(emp4);
                Employee5 emp5 = new Employee5();
                emp5.setId(id);
                emp5.setAddress(address + count);
                emp5.setName(name + count);
                em.persist(emp5);


            }
            tx1.commit();

        } catch (Exception e) {
            throw new RuntimeException("couldn't start tx" , e);
        }

    }


    public Employee getEmployeeNoTX(int id) {

        return em.find(Employee.class, id);
    }

    public String queryEmployeeNameNoTX(int id) {
        Query q = em.createQuery("SELECT e.name FROM Employee e");
        try {
            String name = (String)q.getSingleResult();
            return name;
        }
        catch (NoResultException expected) {
            return "success";
        }
        catch (Exception unexpected) {
            return unexpected.getMessage();
        }

    }


}