Java tutorial
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package com.saax.gestorweb.util; import com.vaadin.server.VaadinSession; import java.util.HashMap; import java.util.Map; /** * * @author rodrigo */ public class GestorSession { private static final Map<String, Object> attributes = new HashMap<>(); public static void setAttribute(String name, Object value) { // se execuo normal if (VaadinSession.getCurrent() != null) { VaadinSession.getCurrent().setAttribute(name, value); } else { // se em testes setLocalAttribute(name, value); } } private static void setLocalAttribute(String name, Object value) { if (name == null) { throw new IllegalArgumentException("name can not be null"); } if (value != null) { attributes.put(name, value); } else { attributes.remove(name); } } public static Object getAttribute(String name) { // se execuo normal if (VaadinSession.getCurrent() != null) { return VaadinSession.getCurrent().getAttribute(name); } else { // se em testes return getLocalAttribute(name); } } private static Object getLocalAttribute(String name) { if (name == null) { throw new IllegalArgumentException("name can not be null"); } return attributes.get(name); } }