InitialDataObserver.java

package br.com.caelum.vraptor.musicjungle.observer;

import javax.enterprise.context.Dependent;
import javax.enterprise.event.Observes;
import javax.inject.Inject;
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;

import br.com.caelum.vraptor.events.VRaptorInitialized;
import br.com.caelum.vraptor.musicjungle.model.User;

/**
 * <p> Insert some data when VRaptor is initialized.</p>
 * 
 * This is an example that you can observe any event triggered by VRaptor.
 * 
 * See more at {@link http://www.vraptor.org/en/docs/events/}.
 *
 * @author Rodrigo Turini
 */
@Dependent
public class InitialDataObserver {
	
	private EntityManagerFactory factory;

	@Inject 
	public InitialDataObserver(EntityManagerFactory factory) {
		this.factory = factory;
	}

	public void insert(@Observes VRaptorInitialized event) {

		EntityManager manager = null;
		
		try {
			manager = factory.createEntityManager();
			manager.getTransaction().begin();
			
			User defaultUser = new User();
			defaultUser.setLogin("vraptor");
			defaultUser.setPassword("vraptor");
			defaultUser.setName("VRaptor's Default User");

			manager.persist(defaultUser);
			manager.getTransaction().commit();
			
		} finally {
			if (manager != null && manager.isOpen()) {
				manager.close();
			}
		} 
	}
}