GlassFish + EJB + CDI + JSF2 problemas na UnitPersistence[SOLVED]

22 de julho de 2013 7 respostas

aix 22 de julho de 2013

Ola pessoal,

tenho um modulo EJB com um webservice rodando, tenho meus beans, repositorios, meu persistence.xml tudo funciona ok, porém precisei incuir um portal no modulo web, minha dúvida é quanto a utilização dos recursos do modulo EJB ex:

no project web preciso utilizar os repositorios que estão la no modulo EJB, porém ao injetar esses caras em meu beanManager tenho a seguinte exception:

Unable to retrieve EntityManagerFactory for unitName null

os beans do JSF e o PhaseListener estão no projeto web, as entidades e repositorios estão no projeto EJB, quando vou verificar se o usuario existe no banco de dados tenho a exception acima, como devo proceder em apps enterprise ? preciso ter um persistence só para o projeto web ? como vocês fazem ? abraços.

ex:

@Named
@Stateless
public class LoginBean implements Serializable {

    @Inject
    private Usuario usuario;
    @Inject
    private UsuarioRepository usuarioRepository;
    @Inject
    private UsuarioLogado usuarioLogado;

7 Respostas

garcia-jj 22 de jul. de 2013

Como estão declarados estes repositórios? São CDI beans ou Stateless? Você tem apenas um ou mais entity managers declarados no persistence.xml? O caused-by aponta para qual classe?

aix 22 de jul. de 2013

os repositórios São CDI beans, estão assim no módulo EJB:

@Repository
public class UsuarioRepository {

    @PersistenceContext
    private EntityManager em;

    public Usuario findByPK(Long id) {
        return em.find(Usuario.class, id);
    }

    public boolean exists(Usuario usuario) {
        boolean encontrado = false;
        try {
            Query query = em.createQuery("SELECT u FROM Usuario u WHERE u.login = :uLogin and u.senha = :uSenha");
            query.setParameter("uLogin", usuario.getLogin());
            query.setParameter("uSenha", usuario.getSenha());
            encontrado = !query.getResultList().isEmpty();
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
        return encontrado;
    }

no beanManager(módulo project web) gostaria de fazer uso desses repositórios, só tenho um em declarado, fiz assim:

@Named
@RequestScoped
public class LoginBean implements Serializable {

    @Inject
    private Usuario usuario;
    @Inject
    private UsuarioRepository usuarioRepository;
    @Inject
    private UsuarioLogado usuarioLogado;

    public String makeLogin() {
        boolean loginValido = usuarioRepository.exists(this.usuario);
        if (loginValido) {

persistence.xml

<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.1" xmlns="http://xmlns.jcp.org/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd">
  <persistence-unit name="wspurchaseorder-ejbPU" transaction-type="JTA">
    <provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
    <jta-data-source>OracleWSPurchaseorderDS</jta-data-source>
    <exclude-unlisted-classes>false</exclude-unlisted-classes>
    <properties>
      <property name="eclipselink.ddl-generation" value="create-tables"/>
    </properties>
  </persistence-unit>
</persistence>

ele gera erro no momento em que vai criar a query do UsuarioRepository

SEVERE:   java.lang.IllegalStateException: Unable to retrieve EntityManagerFactory for unitName null
	at com.sun.enterprise.container.common.impl.EntityManagerWrapper.init(EntityManagerWrapper.java:138)
	at com.sun.enterprise.container.common.impl.EntityManagerWrapper._getDelegate(EntityManagerWrapper.java:171)
	at com.sun.enterprise.container.common.impl.EntityManagerWrapper.createQuery(EntityManagerWrapper.java:455)
	at br.com.wspurchaseorder.repository.UsuarioRepository.exists(UsuarioRepository.java:56)
	at br.com.wspurchaseorder.view.LoginBean.makeLogin(LoginBean.java:36)
	at br.com.wspurchaseorder.view.LoginBean$Proxy$_$$_WeldClientProxy.makeLogin(Unknown Source)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:601)
	at com.sun.el.parser.AstValue.invoke(AstValue.java:275)
	at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:304)
	at org.jboss.weld.util.el.ForwardingMethodExpression.invoke(ForwardingMethodExpression.java:40)
	at org.jboss.weld.el.WeldMethodExpression.invoke(WeldMethodExpression.java:50)
	at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105)
	at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:87)
	at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102)
	at javax.faces.component.UICommand.broadcast(UICommand.java:315)
	at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:790)
	at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1282)
	at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81)
	at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
	at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:198)
	at javax.faces.webapp.FacesServlet.service(FacesServlet.java:646)
	at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1682)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:318)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:160)
	at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:734)
	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:673)
	at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:99)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:174)
	at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:357)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:260)
	at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:188)
	at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:191)
	at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:168)
	at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:189)
	at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119)
	at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:288)
	at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:206)
	at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:136)
	at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:114)
	at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
	at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:838)
	at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:113)
	at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:115)
	at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:55)
	at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:135)
	at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:564)
	at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:544)
	at java.lang.Thread.run(Thread.java:722)

garcia-jj 22 de jul. de 2013

Confere se o persistence.xm está no classes/META-INF, se você tem o beans.xml em ambos projetos (EJB e Web).

Não sei se o Glassfish injeta EJB como se fosse CDI Beans, então se as opções acima não funcionarem, tente injetar os EJBs com @EJB ao invés de @Inject.

aix 22 de jul. de 2013

Injetei com @EJB meu repository e tenho a seguinte stack:

java.lang.IllegalStateException: 
Exception attempting to inject Remote ejb-ref name=br.com.wspurchaseorder.view.LoginBean/usuarioRepository,
Remote 3.x interface =br.com.wspurchaseorder.repository.UsuarioRepository,
ejb-link=null,
lookup=,
mappedName=,
jndi-name=br.com.wspurchaseorder.repository.UsuarioRepository,
refType=Session into class br.com.wspurchaseorder.view.LoginBean: 
Lookup failed for 'java:comp/env/br.com.wspurchaseorder.view.LoginBean/usuarioRepository' 
in SerialContext[myEnv={java.naming.factory.initial=com.sun.enterprise.naming.impl.SerialInitContextFactory, 
java.naming.factory.state=com.sun.corba.ee.impl.presentation.rmi.JNDIStateFactoryImpl,
java.naming.factory.url.pkgs=com.sun.enterprise.naming}

garcia-jj 22 de jul. de 2013

Se você usa um módulo EJB, então injete o repositório em um EJB, e chame este EJB no teu JSF bean. Não dá para injetar um @Dependant entre módulos diferentes.

aix 22 de jul. de 2013

obrigado pela ajuda garcia-jj, vou implementar aqui e testar, vlw por enquanto assim que sobrar um time prometo ler a spec, abraços.

aix 24 de jul. de 2013

Obrigado garcia-jj,

era isso mesmo, bastou injetar o repositorio em um EJB e uso esse EJB no webproject, vlw, abraços.

outra forma foi:

criei um facade

criei a interface

/**
 *
 * @author dcunha
 */
@Local
public interface UsuarioFacadeLocal {

    void create(Usuario usuario);

    void edit(Usuario usuario);

    void remove(Usuario usuario);

    boolean exists(Usuario usuario);

    Usuario find(Object id);

    List<Usuario> findAll();

    List<Usuario> findRange(int[] range);

    int count();
}

um user facade

/**
 *
 * @author dcunha
 */
@Stateless
public class UsuarioFacade extends AbstractFacade<Usuario> implements UsuarioFacadeLocal {

    @PersistenceContext(unitName = "wspurchaseorder-ejbPU")
    private EntityManager em;

    @Override
    protected EntityManager getEntityManager() {
        return em;
    }

    public UsuarioFacade() {
        super(Usuario.class);
    }
}

e um abstract facade

package br.com.wspurchaseorder.facade;

import br.com.wspurchaseorder.entity.Usuario;
import java.util.List;
import javax.persistence.EntityManager;
import javax.persistence.Query;

/**
 *
 * @author dcunha
 */
public abstract class AbstractFacade<T> {

    private Class<T> entityClass;

    public AbstractFacade(Class<T> entityClass) {
        this.entityClass = entityClass;
    }

    protected abstract EntityManager getEntityManager();

    public void create(T entity) {
        getEntityManager().persist(entity);
    }

    public void edit(T entity) {
        getEntityManager().merge(entity);
    }

    public void remove(T entity) {
        getEntityManager().remove(getEntityManager().merge(entity));
    }

    public T find(Object id) {
        return getEntityManager().find(entityClass, id);
    }

    public List<T> findAll() {
        javax.persistence.criteria.CriteriaQuery cq = getEntityManager().getCriteriaBuilder().createQuery();
        cq.select(cq.from(entityClass));
        return getEntityManager().createQuery(cq).getResultList();
    }

    public List<T> findRange(int[] range) {
        javax.persistence.criteria.CriteriaQuery cq = getEntityManager().getCriteriaBuilder().createQuery();
        cq.select(cq.from(entityClass));
        javax.persistence.Query q = getEntityManager().createQuery(cq);
        q.setMaxResults(range[1] - range[0]);
        q.setFirstResult(range[0]);
        return q.getResultList();
    }

    public int count() {
        javax.persistence.criteria.CriteriaQuery cq = getEntityManager().getCriteriaBuilder().createQuery();
        javax.persistence.criteria.Root<T> rt = cq.from(entityClass);
        cq.select(getEntityManager().getCriteriaBuilder().count(rt));
        javax.persistence.Query q = getEntityManager().createQuery(cq);
        return ((Long) q.getSingleResult()).intValue();
    }

    /**
     * <b>Verifica se o usuário existe no banco de dados.</b>
     *
     * @param usuario
     * @return
     */
    public boolean exists(Usuario usuario) {
        boolean encontrado = false;
        try {
            Query query = getEntityManager().createQuery("SELECT u FROM Usuario u WHERE u.login = :uLogin and u.senha = :uSenha");
            query.setParameter("uLogin", usuario.getLogin());
            query.setParameter("uSenha", usuario.getSenha());
            encontrado = !query.getResultList().isEmpty();
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
        return encontrado;
    }
}

Criado 22 de julho de 2013

Ultima resposta 24 de jul. de 2013

Respostas 7

Participantes 2

7 Respostas

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