Example usage for com.vaadin.ui Button addClickListener

List of usage examples for com.vaadin.ui Button addClickListener

  1. HOME
  2. Java
  3. com.vaadin
  4. com.vaadin.ui.*
  5. Button
  6. addClickListener

Introduction

In this page you can find the example usage for com.vaadin.ui Button addClickListener.

Prototype

public Registration addClickListener(ClickListener listener)

Source Link

Document

Adds the button click listener.

Usage

From source file:com.cavisson.gui.dashboard.components.controls.CommonParts.java

License:Apache License

Panel loadingIndicators() {
    Panel p = new Panel("Loading Indicator");
    final VerticalLayout content = new VerticalLayout();
    p.setContent(content);/*w  w  w  . ja  va 2s .c  o m*/
    content.setSpacing(true);
    content.setMargin(true);
    content.addComponent(new Label("You can test the loading indicator by pressing the buttons."));

    CssLayout group = new CssLayout();
    group.setCaption("Show the loading indicator for");
    group.addStyleName("v-component-group");
    content.addComponent(group);
    Button loading = new Button("0.8");
    loading.addClickListener(new ClickListener() {
        @Override
        public void buttonClick(final ClickEvent event) {
            try {
                Thread.sleep(800);
            } catch (InterruptedException e) {
            }
        }
    });
    group.addComponent(loading);

    Button delay = new Button("3");
    delay.addClickListener(new ClickListener() {
        @Override
        public void buttonClick(final ClickEvent event) {
            try {
                Thread.sleep(3000);
            } catch (InterruptedException e) {
            }
        }
    });
    group.addComponent(delay);

    Button wait = new Button("15");
    wait.addClickListener(new ClickListener() {
        @Override
        public void buttonClick(final ClickEvent event) {
            try {
                Thread.sleep(15000);
            } catch (InterruptedException e) {
            }
        }
    });
    wait.addStyleName("last");
    group.addComponent(wait);
    Label label = new Label("   seconds", ContentMode.HTML);
    label.setSizeUndefined();
    group.addComponent(label);

    Label spinnerDesc = new Label(
            "The theme also provides a mixin that you can use to include a spinner anywhere in your application. The button below reveals a Label with a custom style name, for which the spinner mixin is added.");
    spinnerDesc.addStyleName("small");
    spinnerDesc.setCaption("Spinner");
    content.addComponent(spinnerDesc);

    if (!ValoThemeUI.isTestMode()) {
        final Label spinner = new Label();
        spinner.addStyleName("spinner");

        Button showSpinnerButton = new Button("Show spinner", new ClickListener() {
            @Override
            public void buttonClick(final ClickEvent event) {
                content.replaceComponent(event.getComponent(), spinner);
            }
        });
        content.addComponent(showSpinnerButton);
    }

    return p;
}

From source file:com.cavisson.gui.dashboard.components.controls.Dragging.java

License:Apache License

private List<Component> createComponents() {
    final List<Component> components = new ArrayList<Component>();

    final Label label = new Label("This is a long text block that will wrap.");
    label.setWidth("120px");
    components.add(label);//from w ww .jav  a  2s. co m

    final Embedded image = new Embedded("", new ThemeResource("../runo/icons/64/document.png"));
    components.add(image);

    final CssLayout documentLayout = new CssLayout();
    documentLayout.setWidth("19px");
    for (int i = 0; i < 5; ++i) {
        final Embedded e = new Embedded(null, new ThemeResource("../runo/icons/16/document.png"));
        e.setHeight("16px");
        e.setWidth("16px");
        documentLayout.addComponent(e);
    }
    components.add(documentLayout);

    final VerticalLayout buttonLayout = new VerticalLayout();
    final Button button = new Button("Button");
    button.addClickListener(new Button.ClickListener() {
        @Override
        public void buttonClick(final ClickEvent event) {
            Notification.show("Button clicked");
        }
    });
    buttonLayout.addComponent(button);
    buttonLayout.setComponentAlignment(button, Alignment.MIDDLE_CENTER);
    components.add(buttonLayout);

    return components;
}

From source file:com.cerebro.gorgone.landingpage.SignInWindow.java

private Button createCancelButton() {
    Button cancel = new Button("Annulla");
    cancel.addClickListener((Button.ClickEvent event) -> {
        this.close();
    });/*from www . j a  v  a 2  s. c o  m*/
    return cancel;
}

From source file:com.cerebro.gorgone.landingpage.SignInWindow.java

private Component setFirstStep() {
    VerticalLayout firstStep = new VerticalLayout();
    firstStep.setMargin(true);//from w  w  w. j  a  v  a  2  s. c om
    // Body
    HorizontalLayout body = new HorizontalLayout();
    FormLayout datiIniziali = new FormLayout();
    TextField nomePG = new TextField("Nome del Personaggio");
    nomePG.setRequired(true);
    TextField cognomePG = new TextField("Cognome del Personaggio");
    cognomePG.setRequired(true);
    OptionGroup sessoPG = new OptionGroup("Sesso del Personaggio");
    sessoPG.setRequired(true);
    sessoPG.addItems("Maschio", "Femmina");
    ComboBox razzaPG = new ComboBox("Razza");
    razzaPG.setRequired(true);
    Slider age = new Slider("Et");
    age.setImmediate(true);
    age.setWidth("200px");
    age.setVisible(false);
    HorizontalLayout ageDescription = new HorizontalLayout();
    ageDescription.setHeight("250px");
    Label ageText = new Label("Valore dell'et: ");
    Label ageValue = new Label(age.getValue().toString());
    Label periodoVita = new Label("");
    ageDescription.addComponents(ageText, ageValue, periodoVita);
    age.addValueChangeListener((Property.ValueChangeEvent event) -> {
        System.out.println("Valore: " + age.getValue().toString());
        ageValue.setValue(age.getValue().toString());
        Double value = (100 * (age.getValue()) / (age.getMax()));
        if (value < 14) {
            periodoVita.setValue("Bambino");
        } else if (value > 14 && value < 24) {
            periodoVita.setValue("Adolescenza");
        } else if (value > 24 && value < 73) {
            periodoVita.setValue("Et adulta");
        } else if (value > 73) {
            periodoVita.setValue("Et anziana");
        }
    });
    ageDescription.addComponents(ageText, ageValue, periodoVita);
    ageDescription.setVisible(false);
    datiIniziali.addComponents(nomePG, cognomePG, sessoPG, razzaPG, age, ageDescription);
    Panel descrizioneRazza = new Panel();
    CssLayout descrizioneRazzaContent = new CssLayout();
    descrizioneRazza.setWidth("400px");
    descrizioneRazza.setHeight("500px");
    descrizioneRazza.setContent(descrizioneRazzaContent);
    //  Dettagli di popolazione e comportamento ComboBox
    TableQuery tq_races = new TableQuery(DatabaseTables.RACES_TABLE, connPool);
    tq_races.setVersionColumn(DatabaseTables.RACES_VERSION);
    SQLContainer container_races = null;
    try {
        container_races = new SQLContainer(tq_races);
    } catch (Exception ex) {
        logger.error(ex.getMessage());
    }
    razzaPG.setContainerDataSource(container_races);
    razzaPG.setItemCaptionMode(AbstractSelect.ItemCaptionMode.PROPERTY);
    razzaPG.setItemCaptionPropertyId(DatabaseTables.RACES_NAME);
    razzaPG.addValueChangeListener(new Property.ValueChangeListener() {
        @Override
        public void valueChange(Property.ValueChangeEvent event) {
            if (razzaPG.getValue() != null) {
                logger.info("Razza selezionata: " + razzaPG.getValue());
                age.setVisible(true);
                ageDescription.setVisible(true);
                descrizioneRazzaContent.removeAllComponents();
                Item item = razzaPG.getContainerDataSource().getItem(razzaPG.getValue());
                race = (String) item.getItemProperty(DatabaseTables.RACES_NAME).getValue();
                Label nameRace = new Label(race);
                FileResource imageSrc = new FileResource(
                        new File(MyUI.basePath + item.getItemProperty(DatabaseTables.RACES_IMAGE).getValue()));
                Image imageRace = new Image(null, imageSrc);
                imageRace.setWidth("200px");
                Label descriptionRace = new Label(
                        (String) item.getItemProperty(DatabaseTables.RACES_DESCRIPTION).getValue(),
                        ContentMode.HTML);
                min_age = (int) item.getItemProperty(DatabaseTables.RACES_MIN_AGE).getValue();
                max_age = (int) item.getItemProperty(DatabaseTables.RACES_MAX_AGE).getValue();
                age.setMin(min_age);
                age.setMax(max_age);
                strenght = (int) item.getItemProperty(DatabaseTables.RACES_STRENGHT).getValue();
                resistance = (int) item.getItemProperty(DatabaseTables.RACES_RESISTANCE).getValue();
                agility = (int) item.getItemProperty(DatabaseTables.RACES_AGILITY).getValue();
                intelligence = (int) item.getItemProperty(DatabaseTables.RACES_INTELLIGENCE).getValue();
                wisdom = (int) item.getItemProperty(DatabaseTables.RACES_WISDOM).getValue();
                charm = (int) item.getItemProperty(DatabaseTables.RACES_CHARM).getValue();
                Label min_ageL = new Label("Et minima: " + min_age);
                Label max_ageL = new Label("Et masima " + max_age);
                //                Panel levels = new Panel();
                //                VerticalLayout levelsContent = new VerticalLayout();
                //                levels.setContent(levelsContent);
                //                Label strenghtL = new Label("Forza: " + strenght);
                //                levelsContent.addComponents(strenghtL);

                String levelTable = "<table><tr><td>Forza</td><td>Resistenza</td><td>Agilit</td><td>Intelligenza</td>"
                        + "<td>Saggezza</td><td>Carisma</td></tr><tr>" + "<td>" + strenght + "</td>" + "<td>"
                        + resistance + "</td>" + "<td>" + agility + "</td>" + "<td>" + intelligence + "</td>"
                        + "<td>" + wisdom + "</td>" + "<td>" + charm + "</td>" + "</tr></table>";
                Label levels = new Label(levelTable, ContentMode.HTML);

                descrizioneRazzaContent.addComponents(nameRace, imageRace, descriptionRace, min_ageL, max_ageL,
                        levels);
            }
        }
    });

    body.addComponents(datiIniziali, descrizioneRazza);
    CssLayout footer = new CssLayout();
    Button next = new Button("Avanti ->");
    next.addClickListener((Button.ClickEvent event) -> {
        user.setNomePG(nomePG.getValue());
        user.setCognomePG(cognomePG.getValue());
        user.setSessoPG(sessoPG.getValue().toString());
        user.setRazzaPG(race);
        user.setEtaPG(age.getValue().toString());
        user.setForzaPG(strenght);
        user.setResistenzaPG(resistance);
        user.setAgilitaPG(agility);
        user.setIntelligenzaPG(intelligence);
        user.setSaggezzaPG(wisdom);
        user.setCarismaPG(charm);
        this.setContent(setSecondStep());
    });
    footer.addComponents(next, createCancelButton());
    firstStep.addComponents(setHeader("2/4"), body, footer);
    return firstStep;
}

From source file:com.cerebro.gorgone.landingpage.SignInWindow.java

private Component setSecondStep() {
    VerticalLayout secondStep = new VerticalLayout();
    HorizontalLayout body = new HorizontalLayout();
    Panel sx = new Panel();
    VerticalLayout sxContent = new VerticalLayout();
    sx.setContent(sxContent);/*from   ww w  . j a v a2s .  co m*/
    Label welcome = null;
    if (user.getSessoPG().equals("Maschio")) {
        welcome = new Label("Benvenuto: " + user.getNomePG() + "!");
    } else if (user.getSessoPG().equals("Femmina")) {
        welcome = new Label("Benvenuta: " + user.getNomePG() + "!");
    }
    ComboBox carrieraPG = new ComboBox("Scegli la tua carriera:");
    carrieraPG.isRequired();
    Panel careerDescription = new Panel();
    CssLayout careerDescrContent = new CssLayout();
    careerDescription.setContent(careerDescrContent);
    sxContent.addComponents(welcome, carrieraPG, careerDescription);

    //  Dettagli di popolazione e comportamento ComboBox
    TableQuery tq_career = new TableQuery(DatabaseTables.CAREER_TABLE, connPool);
    tq_career.setVersionColumn(DatabaseTables.CAREER_VERSION);
    SQLContainer container_career = null;
    try {
        container_career = new SQLContainer(tq_career);
    } catch (Exception ex) {
        logger.error(ex.getMessage());
    }
    carrieraPG.setContainerDataSource(container_career);
    carrieraPG.setItemCaptionMode(AbstractSelect.ItemCaptionMode.PROPERTY);
    carrieraPG.setItemCaptionPropertyId(DatabaseTables.CAREER_NAME);
    carrieraPG.addValueChangeListener(new Property.ValueChangeListener() {
        @Override
        public void valueChange(Property.ValueChangeEvent event) {
            if (carrieraPG.getValue() != null) {
                logger.info("Carriera: " + carrieraPG.getValue().toString());
                careerDescrContent.removeAllComponents();
                Item item = (Item) carrieraPG.getContainerDataSource().getItem(carrieraPG.getValue());
                career = (String) item.getItemProperty(DatabaseTables.CAREER_NAME).getValue();
                Label careerName = new Label(career);
                FileResource imageSrc = new FileResource(
                        new File(MyUI.basePath + item.getItemProperty(DatabaseTables.CAREER_IMAGE).getValue()));
                Image imageCareer = new Image(null, imageSrc);
                imageCareer.setWidth("200px");
                Label careerDescription = new Label(item.getItemProperty(DatabaseTables.CAREER_DESCRIPTION),
                        ContentMode.HTML);
                strenght_car = (int) item.getItemProperty(DatabaseTables.CAREER_STRENGTH).getValue();
                resistance_car = (int) item.getItemProperty(DatabaseTables.CAREER_RESISTANCE).getValue();
                agility_car = (int) item.getItemProperty(DatabaseTables.CAREER_AGILITY).getValue();
                intelligence_car = (int) item.getItemProperty(DatabaseTables.CAREER_INTELLIGENCE).getValue();
                wisdom_car = (int) item.getItemProperty(DatabaseTables.CAREER_WISDOM).getValue();
                charm_car = (int) item.getItemProperty(DatabaseTables.CAREER_CHARM).getValue();
                String modsTable = "<table><tr><td>Forza</td><td>Resistenza</td><td>Agilit</td><td>Intelligenza</td>"
                        + "<td>Saggezza</td><td>Carisma</td></tr><tr>" + "<td>" + strenght_car + "</td>"
                        + "<td>" + resistance_car + "</td>" + "<td>" + agility_car + "</td>" + "<td>"
                        + intelligence_car + "</td>" + "<td>" + wisdom_car + "</td>" + "<td>" + charm_car
                        + "</td>" + "</tr></table>";
                Label mods = new Label(modsTable, ContentMode.HTML);
                careerDescrContent.addComponents(careerName, imageCareer, careerDescription, mods);
            }

        }

    });

    Panel dx = new Panel();
    VerticalLayout dxContent = new VerticalLayout();
    dx.setContent(dxContent);
    ComboBox orientamentoPG = new ComboBox("Scegli il tuo orientamento:");
    orientamentoPG.isRequired();
    Panel orientamentoDescription = new Panel();
    CssLayout orientamentoDescrContent = new CssLayout();
    orientamentoDescription.setContent(orientamentoDescrContent);
    dxContent.addComponents(orientamentoPG, orientamentoDescription);
    //  Dettagli di popolazione e comportamento ComboBox
    TableQuery tq_orientamento = new TableQuery(DatabaseTables.MORALCODE_TABLE, connPool);
    tq_orientamento.setVersionColumn(DatabaseTables.MORALCODE_VERSION);
    SQLContainer container_orientamento = null;
    try {
        container_orientamento = new SQLContainer(tq_orientamento);
    } catch (Exception ex) {
        logger.error(ex.getMessage());
    }
    orientamentoPG.setContainerDataSource(container_orientamento);
    orientamentoPG.setItemCaptionMode(AbstractSelect.ItemCaptionMode.PROPERTY);
    orientamentoPG.setItemCaptionPropertyId(DatabaseTables.MORALCODE_TENDENCY);
    orientamentoPG.addValueChangeListener(new Property.ValueChangeListener() {
        @Override
        public void valueChange(Property.ValueChangeEvent event) {
            if (orientamentoPG.getValue() != null) {
                logger.info("Orientamento: " + orientamentoPG.getValue().toString());
                orientamentoDescrContent.removeAllComponents();
                Item item = (Item) orientamentoPG.getContainerDataSource().getItem(orientamentoPG.getValue());
                moralCode = (String) item.getItemProperty(DatabaseTables.MORALCODE_TENDENCY).getValue();
                Label orientamentoName = new Label(moralCode);
                FileResource imageSrc = new FileResource(new File(
                        MyUI.basePath + item.getItemProperty(DatabaseTables.MORALCODE_IMAGE).getValue()));
                Image imageTendency = new Image(null, imageSrc);
                imageTendency.setWidth("200px");
                Label orientamentoDescription = new Label(
                        item.getItemProperty(DatabaseTables.MORALCODE_DESCRIPTION), ContentMode.HTML);

                orientamentoDescrContent.addComponents(orientamentoName, imageTendency,
                        orientamentoDescription);
            }

        }

    });

    body.addComponents(sx, dx);
    CssLayout footer = new CssLayout();
    Button next = new Button("Avanti ->");
    next.addClickListener((Button.ClickEvent event) -> {
        user.setCarrieraPG(career);
        // Gestire modificatori
        user.setForzaPG(user.getForzaPG() + strenght_car);
        user.setResistenzaPG(user.getResistenzaPG() + resistance_car);
        user.setAgilitaPG(user.getAgilitaPG() + agility_car);
        user.setIntelligenzaPG(user.getIntelligenzaPG() + intelligence_car);
        user.setSaggezzaPG(user.getSaggezzaPG() + wisdom_car);
        user.setCarismaPG(user.getCarismaPG() + charm_car);
        user.setOrientamentoPG(moralCode);
        this.setContent(setThirdStep());
    });
    footer.addComponents(next, createCancelButton());
    secondStep.addComponents(setHeader("3/4"), body, footer);
    return secondStep;
}

From source file:com.cerebro.gorgone.landingpage.SignInWindow.java

private Component setThirdStep() {
    VerticalLayout thirdStep = new VerticalLayout();
    CssLayout body = new CssLayout();
    Label title = null;//from  w  w  w .ja v a  2s .c om
    if (user.getSessoPG().equals("Maschio")) {
        title = new Label("Caro " + user.getNomeUtente() + " stai per registrare il seguente personaggio: ");
    } else if (user.getSessoPG().equals("Femmina")) {
        title = new Label("Cara " + user.getNomeUtente() + " stai per registrare il seguente personaggio: ");
    }
    Label nomePG = new Label("Nome: " + user.getNomePG());
    Label cognomePG = new Label("Cognome: " + user.getCognomePG());
    Label sessoPG = new Label("Sesso: " + user.getSessoPG());
    Label etaPG = new Label("Et: " + user.getEtaPG());
    Label razzaPG = new Label("Razza: " + user.getRazzaPG());
    Label carrieraPG = new Label("Carriera: " + user.getCarrieraPG());
    Label orientamentoPG = new Label("Orientamento: " + user.getOrientamentoPG());
    String valuesTable = "<table><tr><td>Forza</td><td>Resistenza</td><td>Agilit</td><td>Intelligenza</td>"
            + "<td>Saggezza</td><td>Carisma</td></tr><tr>" + "<td>" + user.getForzaPG() + "</td>" + "<td>"
            + user.getResistenzaPG() + "</td>" + "<td>" + user.getAgilitaPG() + "</td>" + "<td>"
            + user.getIntelligenzaPG() + "</td>" + "<td>" + user.getSaggezzaPG() + "</td>" + "<td>"
            + user.getCarismaPG() + "</td>" + "</tr></table>";
    Label values = new Label(valuesTable, ContentMode.HTML);
    Label alert = new Label("Premendo il tasto di iscrizione ti verr inviata una mail di conferma "
            + "all'indirizzo che hai inserito all'inizio. Se non lo confermi non potrai giocare!");
    // Aggiungere le condizioni d'uso
    body.addComponents(title, nomePG, cognomePG, sessoPG, etaPG, razzaPG, carrieraPG, orientamentoPG, values,
            alert);

    CssLayout footer = new CssLayout();
    Button signIn = new Button("Iscriviti");
    signIn.addClickListener((Button.ClickEvent event) -> {
        logger.info("Iscrizione in corso");
        // Creazione del codice 
        String confCode = RandomStringUtils.random(10, true, true);
        user.setCodiceConferma(confCode);
        // Salvataggio dei dati nel database
        user.signInNewUser();
        // Invio della mail
        //             SendConfEmail sendConfEmail = new SendConfEmail(user.getEmail(), confCode);
        //            SendConfMailjet sendConf = new SendConfMailjet(user.getEmail(), confCode);
        // Chiusura della finestra
        this.close();
    });
    footer.addComponents(signIn, createCancelButton());

    thirdStep.addComponents(setHeader("4/4"), body, footer);
    return thirdStep;
}

From source file:com.cerebro.provevaadin.ChatOffGame.java

public ChatOffGame() {
    Panel messagesPanel = new Panel();
    messagesPanel.setSizeFull();//from ww  w.ja  va  2 s  . c  o m
    messagesPanel.setContent(messages);
    this.addComponent(messagesPanel);
    this.setExpandRatio(messagesPanel, 1.0f);

    HorizontalLayout sendBar = new HorizontalLayout();
    sendBar.setWidth("100%");
    final TextField input = new TextField();
    input.setWidth("100%");
    sendBar.addComponent(input);
    sendBar.setExpandRatio(input, 1.0f);

    Button send = new Button("Send");
    send.setClickShortcut(ShortcutAction.KeyCode.ENTER, null);
    send.addClickListener((Button.ClickEvent event) -> {
        BroadcasterOffGame.broadcast(input.getValue(), FROM);
        input.setValue("");
    });
    sendBar.addComponent(send);
    this.addComponent(sendBar);

    BroadcasterOffGame.register(this);
}

From source file:com.cerebro.provevaadin.ChatOnGame.java

public ChatOnGame(User user) {
    if (user.getUltimoLuogoPG() != null) {
        logger.info("Luogo: " + user.getUltimoLuogoPG());
    } else {//from w w  w  .  j av a  2  s. c o  m
        logger.info("Nessun luogo selezionato");
    }
    Panel messagesPanel = new Panel();
    messagesPanel.setSizeFull();
    messagesPanel.setContent(messages);
    this.addComponent(messagesPanel);
    this.setExpandRatio(messagesPanel, 1.0f);

    HorizontalLayout sendBar = new HorizontalLayout();
    sendBar.setWidth("100%");
    final TextField input = new TextField();
    input.setWidth("100%");
    sendBar.addComponent(input);
    sendBar.setExpandRatio(input, 1.0f);

    Button send = new Button("Send");
    send.setClickShortcut(ShortcutAction.KeyCode.ENTER, null);
    send.addClickListener((Button.ClickEvent event) -> {
        logger.info("Invio del messaggio al server");
        BroadcasterOnGame.broadcast(input.getValue(), FROM);
        input.setValue("");
    });
    sendBar.addComponent(send);
    this.addComponent(sendBar);

    BroadcasterOnGame.register(this);
}

From source file:com.cerebro.provevaadin.database.Configurazione.java

public Configurazione() {

    System.out.println("Componente per la personalizzazione");

    this.setMargin(true);

    TextField db_host = new TextField("Database Host Name");
    db_host.isRequired();// ww  w . ja v  a  2  s .  c  o  m
    TextField db_port = new TextField("Database Port");
    db_port.isRequired();
    TextField db_user = new TextField("Username");
    db_user.isRequired();
    PasswordField db_pwd = new PasswordField("Password");
    db_pwd.isRequired();
    PasswordField pwd_conf = new PasswordField("Conferma Password");
    pwd_conf.setImmediate(true);

    Properties props = new Properties();
    InputStream config = VaadinServlet.getCurrent().getServletContext()
            .getResourceAsStream("/WEB-INF/config.properties");
    if (config != null) {
        System.out.println("Carico file di configurazione");
        try {
            props.load(config);
        } catch (IOException ex) {
            Logger.getLogger(MySQLServer.class.getName()).log(Level.SEVERE, null, ex);
        }
    }
    db_host.setValue(props.getProperty("db_host"));
    db_user.setValue(props.getProperty("db_user"));

    Button salva = new Button("Salva");
    salva.addClickListener((Button.ClickEvent event) -> {
        System.out.println("Salvo i parametri");
        if (db_host.isValid() && db_port.isValid() && db_user.isValid() && db_pwd.isValid()
                && pwd_conf.getValue().equals(db_pwd.getValue())) {
            String dbHost = "jdbc:mysql://" + db_host.getValue() + ":" + db_port.getValue()
                    + "/grizzly?useSSL=false&serverTimezone=UTC";
            props.setProperty("db_host", dbHost);
            props.setProperty("db_user", db_user.getValue());
            props.setProperty("db_pwd", db_pwd.getValue());
            String webInfPath = VaadinServlet.getCurrent().getServletConfig().getServletContext()
                    .getRealPath("WEB-INF");
            File f = new File(webInfPath + "/config.properties");
            try {
                OutputStream o = new FileOutputStream(f);
                try {
                    props.store(o, "Prova");
                } catch (IOException ex) {
                    Logger.getLogger(Configurazione.class.getName()).log(Level.SEVERE, null, ex);
                }
            } catch (FileNotFoundException ex) {
                Logger.getLogger(Configurazione.class.getName()).log(Level.SEVERE, null, ex);
            }
            Notification.show("Parametri salvati");
        } else {
            Notification.show("Ricontrolla i parametri");
        }
    });

    Button test = new Button("Test per i parametri salvati");
    test.addClickListener((Button.ClickEvent event) -> {
        System.out.println("Testo i parametri");
        MySQLServer mysql = new MySQLServer();
        JDBCConnectionPool conn = mysql.getJDBCConnPool();
        if (!mysql.testJDBCConnPool(conn)) {
            Notification.show("Errore nella connessione al database");
        } else {
            Notification.show("Connessione avvenuta con successo");
        }
    });

    this.addComponents(db_host, db_port, db_user, db_pwd, pwd_conf, salva, test);

}

From source file:com.cerebro.provevaadin.FirstTime.java

public FirstTime() {

    this.setMargin(true);

    TabSheet tabsheet = new TabSheet();
    this.addComponent(tabsheet);
    tabsheet.addTab(new Configurazione(), "Database MySQL");
    tabsheet.addTab(new ConfigurazioneSMTP(), "Server SMTP");

    Button logout = new Button("Esci");
    this.addComponent(logout);
    logout.addClickListener((Button.ClickEvent e) -> {
        //            logger.info("Esco dall'applicazione");
        //            logger.info("Pulsante: " + e.toString());
        SecurityUtils.getSubject().logout();
        UI.getCurrent().getSession().close();
        UI.getCurrent().getPage().setLocation("");
    });/*  w w  w  .j  a va2  s .com*/
    this.addComponent(logout);

}