Tapestry5 layout with DataTable and Patternfly imports

Layout.java

package cu.ictso.miscapps.components;

import cu.ictso.miscapps.pages.Index;
import org.apache.shiro.subject.Subject;
import org.apache.tapestry5.*;
import org.apache.tapestry5.annotations.*;
import org.apache.tapestry5.ioc.annotations.*;
import org.apache.tapestry5.BindingConstants;
import org.apache.tapestry5.SymbolConstants;
import org.tynamo.security.services.SecurityService;

/**
 * Layout component 
 */
@Import(module = {"bootstrap/collapse"},
        stylesheet = {"context:datatables/css/dataTables.jqueryui.css","context:patternfly/css/patternfly.css", 
                      "context:patternfly/css/patternfly-additions.css"},
        library = {"context:patternfly/js/patternfly.js", "context:mybootstrap/js/bootstrap.js"})
public class Layout {

    @Inject
    private ComponentResources resources;

    @Inject
    private SecurityService securityService;
    
    /**
     * The page title, for the <title> element and the <h1> element.
     */
    @Property
    @Parameter(required = true, defaultPrefix = BindingConstants.LITERAL)
    private String title;

    @Property
    @Parameter(required = false, defaultPrefix = BindingConstants.LITERAL)
    private String pageName;

    @Property
    @Parameter(defaultPrefix = BindingConstants.LITERAL)
    private Block navbar;
    
    @Property
    @Inject
    @Symbol(SymbolConstants.APPLICATION_VERSION)
    private String appVersion;

    public String getClassForPageName() {
        return resources.getPageName().equalsIgnoreCase(pageName)
                ? "active"
                : null;
    }
    
    public String getLoggedUsername(){
        Subject currentUser = securityService.getSubject();
        return (String) currentUser.getPrincipal();
    }
    
    public Object onSignOut(){
        Subject currentUser = securityService.getSubject();
        currentUser.logout();
        return Index.class;
    }
}