com.abien.vaadin.helloapp.HelloApp.java Source code

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Here is the source code for com.abien.vaadin.helloapp.HelloApp.java

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/*
Copyright 2012 Adam Bien, adam-bien.com
    
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.abien.vaadin.helloapp;

import com.abien.vaadin.helloapp.greetings.boundary.Greetings;
import com.vaadin.Application;
import com.vaadin.ui.Button;
import com.vaadin.ui.Button.ClickEvent;
import com.vaadin.ui.Label;
import com.vaadin.ui.TextField;
import com.vaadin.ui.VerticalLayout;
import com.vaadin.ui.Window;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.enterprise.context.SessionScoped;
import javax.enterprise.event.Event;
import javax.inject.Inject;

/**
 *
 * @author adam-bien.com
 */
@SessionScoped
@VaadinApplication
public class HelloApp extends Application {

    @Inject
    Greetings greetingService;

    @Inject
    Event<ClickEvent> buttonEvents;

    @Override
    public void init() {
        VerticalLayout layout = new VerticalLayout();
        layout.setMargin(true);
        Label header = new Label("Vaadin on Java EE");
        header.setStyleName("h1");
        layout.addComponent(header);

        final TextField nameField = new TextField("Input something:");
        final Label greetingLbl = new Label();
        layout.addComponent(nameField);

        layout.addComponent(
                new Button("Say slow Hello, clicking this shouldn't stall other users", new Button.ClickListener() {

                    @Override
                    public void buttonClick(ClickEvent event) {
                        try {
                            Thread.sleep(20 * 1000);
                        } catch (InterruptedException ex) {
                            Logger.getLogger(HelloApp.class.getName()).log(Level.SEVERE, null, ex);
                        }
                        getMainWindow().showNotification("Hello!");
                    }
                }));

        layout.addComponent(new Button("Say Hello", new Button.ClickListener() {

            @Override
            public void buttonClick(ClickEvent event) {
                greetingLbl.setCaption(greetingService.sayHello(nameField.getValue().toString()));
                buttonEvents.fire(event);
            }
        }));
        layout.addComponent(greetingLbl);

        Window mainWindow = new Window("Vaadin 6.8 - Java EE Integration", layout);
        setMainWindow(mainWindow);
    }

}