Creating a Basic JSF 2.2 Application - JSF and HTML5 - page 244

<h:commandButton value="#{bundle['application.login']}"
action="#{loginBacking.login}"/> <br/>
<h:link value="#{bundle['application.loginpage.register']}" outcome="registration"/>
<br/><br/>
<h:messages styleClass="errorMessage"/>
</h:form>
</ui:define>
</ui:composition>
</html>
As shown in the previous code, the weather application's home page contains user name InputText and
password InputSecret . The login CommandButton calls the login method of the LoginBacking bean and the
registration link navigates to "registration" flow (will be illustrated in more detail in the next section). Listing 10-2
shows the LoginBacking bean.
Listing 10-2. LoginBacking Bean
package com.jsfprohtml5.weather.backing;
import com.jsfprohtml5.weather.model.AppUser;
import com.jsfprohtml5.weather.model.UserManagerLocal;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.ejb.EJB;
import javax.enterprise.context.RequestScoped;
import javax.faces.application.FacesMessage;
import javax.inject.Named;
@Named
@RequestScoped
public class LoginBacking extends BaseBacking {
@EJB
private UserManagerLocal userManager;
public String login() {
AppUser currentAppUser = (AppUser) evaluateEL("#{appUser}", AppUser.class);
try {
AppUser appUser = userManager.getUser(currentAppUser.getId(),
currentAppUser.getPassword());
if (appUser == null) {
getContext().addMessage(null, new FacesMessage(INVALID_USERNAME_OR_PASSWORD));
return null;
}
//Set Necessary user information
currentAppUser.setEmail(appUser.getEmail());
currentAppUser.setFirstName(appUser.getFirstName());