package org.jboss.seam.rest.example.tasks.db;
import java.util.Date;
import java.util.LinkedList;
import javax.ejb.Stateless;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import org.jboss.logging.Logger;
import org.jboss.seam.rest.example.tasks.entity.Category;
import org.jboss.seam.rest.example.tasks.entity.Task;
/**
* Database import
*
* @author <a href="http://community.jboss.org/people/jharting">Jozef Hartinger</a>
*
*/
@Stateless
public class ImportBean {
public static final Logger log = Logger.getLogger(ImportBean.class);
@PersistenceContext
private EntityManager em;
public void clearDatabase() {
em.createQuery("delete from Task").executeUpdate();
em.createQuery("delete from Category").executeUpdate();
}
public void feedDatabase() {
log.info("Running database import.");
// School
Category school = createCategory("School");
addTask(school, "Build the Turing machine");
addTask(school, "Finish the RESTEasy-Seam integration example");
addTask(school, "Learn new vocab for English conversations");
addTask(school, "Prepare a presentation for webdesign seminar");
addTask(school, "Print study materials", true);
em.persist(school);
// Work
Category work = createCategory("Work");
addTask(work, "Pick up meal tickets");
// Buy
em.persist(work);
Category buy = createCategory("Buy");
addTask(buy, "Buy milk");
addTask(buy, "Buy an infinite tape");
addTask(buy, "Order books");
addTask(buy, "Buy a turtle", true);
addTask(buy, "Buy new shoes", true);
addTask(buy, "Order camera", true);
em.persist(buy);
// Other stuff
Category other_stuff = createCategory("Other Stuff");
addTask(other_stuff, "Learn to fly", true);
addTask(other_stuff, "Visit grandma");
addTask(other_stuff, "Extend passport");
addTask(other_stuff, "Get a haircut");
addTask(other_stuff, "Pay bills", true);
addTask(other_stuff, "Tidy up", true);
em.persist(other_stuff);
}
private Category createCategory(String name) {
Category c = new Category(name);
c.setTasks(new LinkedList<Task>());
return c;
}
private void addTask(Category category, String name) {
addTask(category, name, false);
}
private void addTask(Category category, String name, boolean resolved) {
Task task = new Task(name, resolved, new Date(), new Date(), category);
category.getTasks().add(task);
}
}