nl.kpmg.lcm.ui.Application.java Source code

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Here is the source code for nl.kpmg.lcm.ui.Application.java

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/*
 * Copyright 2016 KPMG N.V. (unless otherwise stated).
 *
 * 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 nl.kpmg.lcm.ui;

import com.vaadin.annotations.Theme;
import com.vaadin.annotations.Widgetset;
import com.vaadin.navigator.Navigator;
import com.vaadin.server.VaadinRequest;
import com.vaadin.spring.annotation.EnableVaadin;
import com.vaadin.spring.annotation.SpringUI;
import com.vaadin.spring.navigator.SpringViewProvider;
import com.vaadin.ui.Button;
import com.vaadin.ui.Button.ClickEvent;
import com.vaadin.ui.Button.ClickListener;
import com.vaadin.ui.CssLayout;
import com.vaadin.ui.Label;
import com.vaadin.ui.Notification;
import com.vaadin.ui.Panel;
import com.vaadin.ui.UI;
import com.vaadin.ui.VerticalLayout;
import com.vaadin.ui.themes.ValoTheme;

import nl.kpmg.lcm.ui.rest.AuthenticationException;
import nl.kpmg.lcm.ui.rest.RestClientService;
import nl.kpmg.lcm.ui.view.AdministrationViewImpl;
import nl.kpmg.lcm.ui.view.MetadataOverviewViewImpl;
import nl.kpmg.lcm.ui.view.TransferViewImpl;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Configuration;

@Theme("lcm_main_theme")
@Widgetset("nl.kpmg.lcm.ui.LCMWidgetset")
@SpringUI
public class Application extends UI {

    private Navigator navigator;

    @Autowired
    private SpringViewProvider viewProvider;

    @Autowired
    private RestClientService restClientService;

    @Configuration
    @EnableVaadin
    public static class MyConfiguration {

    }

    @Override
    protected void init(VaadinRequest vaadinRequest) {
        getPage().setTitle("Local Catalog Manager");

        final VerticalLayout root = new VerticalLayout();
        root.setSizeFull();
        root.setMargin(true);
        root.setSpacing(true);
        setContent(root);

        final CssLayout navigationBar = new CssLayout();
        navigationBar.addStyleName(ValoTheme.LAYOUT_COMPONENT_GROUP);

        Label logo = new Label("LCM");
        logo.addStyleName("logo");
        logo.setWidthUndefined();

        navigationBar.addComponent(logo);
        navigationBar.addComponent(createNavigationButton("Metadata", MetadataOverviewViewImpl.VIEW_NAME));
        navigationBar.addComponent(createNotImplementedButton("Analytics"));
        navigationBar.addComponent(createNavigationButton("Transfer", TransferViewImpl.VIEW_NAME));
        navigationBar.addComponent(createNavigationButton("Administration", AdministrationViewImpl.VIEW_NAME));
        navigationBar.addComponent(createLogoutButton("Logout"));
        root.addComponent(navigationBar);

        final Panel viewContainer = new Panel();
        viewContainer.setSizeFull();
        root.addComponent(viewContainer);
        root.setExpandRatio(viewContainer, 1.0f);

        navigator = new Navigator(this, viewContainer);
        navigator.addProvider(viewProvider);
        navigator.navigateTo("login");
    }

    private Button createNavigationButton(String caption, final String viewName) {
        Button button = new Button(caption);
        button.addStyleName(ValoTheme.BUTTON_SMALL);
        button.addClickListener(new ClickListener() {
            @Override
            public void buttonClick(ClickEvent event) {
                getUI().getNavigator().navigateTo(viewName);
            }
        });
        return button;
    }

    private Button createLogoutButton(String caption) {
        Button button = new Button(caption);
        button.addStyleName(ValoTheme.BUTTON_SMALL);
        button.addClickListener(new ClickListener() {
            @Override
            public void buttonClick(ClickEvent event) {
                try {
                    restClientService.logout();
                    navigator.navigateTo("login");
                } catch (AuthenticationException ex) {
                    Notification.show("Error! unable to logout sucessfully.");
                }
            }
        });
        return button;
    }

    private Button createNotImplementedButton(String caption) {
        Button button = new Button(caption);
        button.addStyleName(ValoTheme.BUTTON_SMALL);
        button.addClickListener(new ClickListener() {
            @Override
            public void buttonClick(ClickEvent event) {
                Notification.show("This functionality is not yet implemented.");
            }
        });
        return button;
    }
}