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* Copyright 2013, Red Hat, Inc. and/or its affiliates, and individual
* contributors by the @authors tag. See the copyright.txt in the
* distribution for a full listing of individual contributors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jboss.as.quickstart.hibernate3.controller;
import java.util.logging.Logger;
import javax.annotation.PostConstruct;
import javax.ejb.Stateful;
import javax.enterprise.event.Event;
import javax.enterprise.inject.Model;
import javax.enterprise.inject.Produces;
import javax.faces.application.FacesMessage;
import javax.faces.context.FacesContext;
import javax.inject.Inject;
import javax.inject.Named;
import javax.persistence.EntityManager;
import org.hibernate.Session;
import org.jboss.as.quickstart.hibernate3.model.Member;
/**
* @author Madhumita Sadhukhan
*/
// The @Stateful annotation eliminates the need for manual transaction demarcation
@Stateful
// The @Model stereotype is a convenience mechanism to make this a request-scoped bean that has an
// EL name
// Read more about the @Model stereotype in this FAQ:
// http://sfwk.org/Documentation/WhatIsThePurposeOfTheModelAnnotation
@Model
public class MemberRegistration {
@Inject
private Logger log;
@Inject
private FacesContext facesContext;
@Inject
private EntityManager em;
@Inject
private Event<Member> memberEventSrc;
private Member newMember;
@Produces
@Named
public Member getNewMember() {
return newMember;
}
@Produces
public void register() throws Exception {
log.info("Registering " + newMember.getName());
// using Hibernate session(Native API) and JPA entitymanager
Session session = (Session) em.getDelegate();
session.persist(newMember);
try {
memberEventSrc.fire(newMember);
initNewMember();
} catch (Exception e) {
// Display the reason for the error on the form
String errorMessage = getRootErrorMessage(e);
FacesMessage facesMessage = new FacesMessage(FacesMessage.SEVERITY_ERROR, errorMessage, "Registration unsuccessful");
facesContext.addMessage(null, facesMessage);
}
}
@PostConstruct
public void initNewMember() {
newMember = new Member();
}
private String getRootErrorMessage(Exception e) {
// Default to general error message that registration failed.
String errorMessage = "Registration failed. See server log for more information";
if (e == null) {
// This shouldn't happen, but return the default messages
return errorMessage;
}
// Start with the exception and recurse to find the root cause
Throwable t = e;
while (t != null) {
// Get the message from the Throwable class instance
errorMessage = t.getLocalizedMessage();
t = t.getCause();
}
// This is the root cause message
return errorMessage;
}
}