com.logs.mavfun2.ExampleUI.java Source code

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Here is the source code for com.logs.mavfun2.ExampleUI.java

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/*
 * Copyright 2009 IT Mill Ltd.
 *
 * 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 com.logs.mavfun2;

import javax.servlet.annotation.WebServlet;

import org.apache.shiro.SecurityUtils;
import org.apache.shiro.subject.Subject;

import com.vaadin.annotations.Theme;
import com.vaadin.annotations.VaadinServletConfiguration;
import com.vaadin.navigator.Navigator;
import com.vaadin.navigator.ViewChangeListener;
import com.vaadin.server.VaadinRequest;
import com.vaadin.server.VaadinServlet;
import com.vaadin.ui.UI;

@Theme("shiroexample")
public class ExampleUI extends UI implements ViewChangeListener {

    @WebServlet(value = "/*")
    @VaadinServletConfiguration(productionMode = false, ui = ExampleUI.class)
    public static class Servlet extends VaadinServlet {
    }

    @Override
    protected void init(VaadinRequest request) {
        Navigator navigator = new Navigator(this, this);
        navigator.addViewChangeListener(this);

        navigator.addView("", LoginView.class);
        if (SecurityUtils.getSubject().isAuthenticated()) {
            getUI().getNavigator().addView("secure", SecureView.class);
        }
        navigator.setErrorView(ErrorView.class);
    }

    public void markAsDirty() {
        // TODO Auto-generated method stub

    }

    @Override
    public boolean beforeViewChange(ViewChangeEvent event) {
        Subject currentUser = SecurityUtils.getSubject();
        if (currentUser.isAuthenticated() && event.getViewName().equals("")) {
            event.getNavigator().navigateTo("secure");
            return false;
        }

        if (!currentUser.isAuthenticated() && !event.getViewName().equals("")) {
            event.getNavigator().navigateTo("");
            return false;
        }

        return true;
    }

    @Override
    public void afterViewChange(ViewChangeEvent event) {
        // TODO Auto-generated method stub

    }

}