Example usage for com.vaadin.server RequestHandler RequestHandler

List of usage examples for com.vaadin.server RequestHandler RequestHandler

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Introduction

In this page you can find the example usage for com.vaadin.server RequestHandler RequestHandler.

Prototype

RequestHandler

Source Link

Usage

From source file:annis.gui.SearchUI.java

License:Apache License

@Override
protected void init(VaadinRequest request) {
    super.init(request);

    this.instanceConfig = getInstanceConfig(request);

    getPage().setTitle(instanceConfig.getInstanceDisplayName() + " (ANNIS Corpus Search)");

    queryController = new QueryController(this);

    refresh = new Refresher();
    // deactivate refresher by default
    refresh.setRefreshInterval(-1);//w  ww  .  ja v  a  2  s .com
    refresh.addListener(queryController);
    addExtension(refresh);

    // always get the resize events directly
    setImmediate(true);

    VerticalLayout mainLayout = new VerticalLayout();
    setContent(mainLayout);

    mainLayout.setSizeFull();
    mainLayout.setMargin(false);

    final ScreenshotMaker screenshot = new ScreenshotMaker(this);
    addExtension(screenshot);

    css = new CSSInject(this);

    HorizontalLayout layoutToolbar = new HorizontalLayout();
    layoutToolbar.setWidth("100%");
    layoutToolbar.setHeight("-1px");

    mainLayout.addComponent(layoutToolbar);
    layoutToolbar.addStyleName("toolbar");
    layoutToolbar.addStyleName("border-layout");

    Button btAboutAnnis = new Button("About ANNIS");
    btAboutAnnis.addStyleName(ChameleonTheme.BUTTON_SMALL);
    btAboutAnnis.setIcon(new ThemeResource("info.gif"));

    btAboutAnnis.addClickListener(new AboutClickListener());

    btBugReport = new Button("Report Bug");
    btBugReport.addStyleName(ChameleonTheme.BUTTON_SMALL);
    btBugReport.setDisableOnClick(true);
    btBugReport.setIcon(new ThemeResource("../runo/icons/16/email.png"));
    btBugReport.addListener(new Button.ClickListener() {
        @Override
        public void buttonClick(ClickEvent event) {
            screenshot.makeScreenshot();
            btBugReport.setCaption("bug report is initialized...");
        }
    });

    String bugmail = (String) VaadinSession.getCurrent().getAttribute("bug-e-mail");
    if (bugmail != null && !bugmail.isEmpty() && !bugmail.startsWith("${")
            && new EmailValidator("").isValid(bugmail)) {
        this.bugEMailAddress = bugmail;
    }
    btBugReport.setVisible(this.bugEMailAddress != null);

    lblUserName = new Label("not logged in");
    lblUserName.setWidth("-1px");
    lblUserName.setHeight("-1px");
    lblUserName.addStyleName("right-aligned-text");

    btLoginLogout = new Button("Login", new Button.ClickListener() {
        @Override
        public void buttonClick(ClickEvent event) {
            if (isLoggedIn()) {
                // logout
                Helper.setUser(null);
                Notification.show("Logged out", Notification.Type.TRAY_NOTIFICATION);
                updateUserInformation();
            } else {
                showLoginWindow();
            }
        }
    });
    btLoginLogout.setSizeUndefined();
    btLoginLogout.setStyleName(ChameleonTheme.BUTTON_SMALL);
    btLoginLogout.setIcon(new ThemeResource("../runo/icons/16/user.png"));

    Button btOpenSource = new Button("Help us to make ANNIS better!");
    btOpenSource.setStyleName(BaseTheme.BUTTON_LINK);
    btOpenSource.addListener(new Button.ClickListener() {
        @Override
        public void buttonClick(ClickEvent event) {
            Window w = new HelpUsWindow();
            w.setCaption("Help us to make ANNIS better!");
            w.setModal(true);
            w.setResizable(true);
            w.setWidth("600px");
            w.setHeight("500px");
            addWindow(w);
            w.center();
        }
    });

    layoutToolbar.addComponent(btAboutAnnis);
    layoutToolbar.addComponent(btBugReport);
    layoutToolbar.addComponent(btOpenSource);
    layoutToolbar.addComponent(lblUserName);
    layoutToolbar.addComponent(btLoginLogout);

    layoutToolbar.setSpacing(true);
    layoutToolbar.setComponentAlignment(btAboutAnnis, Alignment.MIDDLE_LEFT);
    layoutToolbar.setComponentAlignment(btBugReport, Alignment.MIDDLE_LEFT);
    layoutToolbar.setComponentAlignment(btOpenSource, Alignment.MIDDLE_CENTER);
    layoutToolbar.setComponentAlignment(lblUserName, Alignment.MIDDLE_RIGHT);
    layoutToolbar.setComponentAlignment(btLoginLogout, Alignment.MIDDLE_RIGHT);
    layoutToolbar.setExpandRatio(btOpenSource, 1.0f);

    //HorizontalLayout hLayout = new HorizontalLayout();
    final HorizontalSplitPanel hSplit = new HorizontalSplitPanel();
    hSplit.setSizeFull();

    mainLayout.addComponent(hSplit);
    mainLayout.setExpandRatio(hSplit, 1.0f);

    AutoGeneratedQueries autoGenQueries = new AutoGeneratedQueries("example queries", this);

    controlPanel = new ControlPanel(queryController, instanceConfig, autoGenQueries);
    controlPanel.setWidth(100f, Layout.Unit.PERCENTAGE);
    controlPanel.setHeight(100f, Layout.Unit.PERCENTAGE);
    hSplit.setFirstComponent(controlPanel);

    tutorial = new TutorialPanel();
    tutorial.setHeight("99%");

    mainTab = new TabSheet();
    mainTab.setSizeFull();
    mainTab.addTab(autoGenQueries, "example queries");
    mainTab.addTab(tutorial, "Tutorial");

    queryBuilder = new QueryBuilderChooser(queryController, this, instanceConfig);
    mainTab.addTab(queryBuilder, "Query Builder");

    hSplit.setSecondComponent(mainTab);
    hSplit.setSplitPosition(CONTROL_PANEL_WIDTH, Unit.PIXELS);
    hSplit.addSplitterClickListener(new AbstractSplitPanel.SplitterClickListener() {
        @Override
        public void splitterClick(AbstractSplitPanel.SplitterClickEvent event) {
            if (event.isDoubleClick()) {
                if (hSplit.getSplitPosition() == CONTROL_PANEL_WIDTH) {
                    // make small
                    hSplit.setSplitPosition(0.0f, Unit.PIXELS);
                } else {
                    // reset to default width
                    hSplit.setSplitPosition(CONTROL_PANEL_WIDTH, Unit.PIXELS);
                }
            }
        }
    });
    // hLayout.setExpandRatio(mainTab, 1.0f);

    addAction(new ShortcutListener("^Query builder") {
        @Override
        public void handleAction(Object sender, Object target) {
            mainTab.setSelectedTab(queryBuilder);
        }
    });

    addAction(new ShortcutListener("Tutor^eial") {
        @Override
        public void handleAction(Object sender, Object target) {
            mainTab.setSelectedTab(tutorial);
        }
    });

    getPage().addUriFragmentChangedListener(this);

    getSession().addRequestHandler(new RequestHandler() {
        @Override
        public boolean handleRequest(VaadinSession session, VaadinRequest request, VaadinResponse response)
                throws IOException {
            checkCitation(request);

            if (request.getPathInfo() != null && request.getPathInfo().startsWith("/vis-iframe-res/")) {
                String uuidString = StringUtils.removeStart(request.getPathInfo(), "/vis-iframe-res/");
                UUID uuid = UUID.fromString(uuidString);
                IFrameResourceMap map = VaadinSession.getCurrent().getAttribute(IFrameResourceMap.class);
                if (map == null) {
                    response.setStatus(404);
                } else {
                    IFrameResource res = map.get(uuid);
                    if (res != null) {
                        response.setStatus(200);
                        response.setContentType(res.getMimeType());
                        response.getOutputStream().write(res.getData());
                    }
                }
                return true;
            }

            return false;
        }
    });

    getSession().setAttribute(MediaController.class, new MediaControllerImpl());

    getSession().setAttribute(PDFController.class, new PDFControllerImpl());

    loadInstanceFonts();

    checkCitation(request);
    lastQueriedFragment = "";
    evaluateFragment(getPage().getUriFragment());

    updateUserInformation();
}

From source file:com.ejt.vaadin.loginform.LoginForm.java

License:Apache License

private void init() {
    if (initialized) {
        return;//w  ww  .  j a v  a  2s . c  o  m
    }

    LoginFormState state = getState();
    state.userNameFieldConnector = createUserNameField();
    state.passwordFieldConnector = createPasswordField();
    state.loginButtonConnector = createLoginButton();

    String contextPath = VaadinService.getCurrentRequest().getContextPath();
    if (contextPath.endsWith("/")) {
        contextPath = contextPath.substring(0, contextPath.length() - 1);
    }
    state.contextPath = contextPath;

    VaadinSession.getCurrent().addRequestHandler(new RequestHandler() {
        @Override
        public boolean handleRequest(VaadinSession session, VaadinRequest request, VaadinResponse response)
                throws IOException {
            if (LoginFormConnector.LOGIN_URL.equals(request.getPathInfo())) {
                response.setContentType("text/html; charset=utf-8");
                response.setCacheTime(-1);
                PrintWriter writer = response.getWriter();
                writer.append("<html>Success</html>");
                return true;
            } else {
                return false;
            }
        }
    });

    registerRpc(new LoginFormRpc() {
        @Override
        public void submitCompleted() {
            login();
        }
    });

    initialized = true;

    setContent(createContent(getUserNameField(), getPasswordField(), getLoginButton()));
}

From source file:org.bubblecloud.ilves.site.DefaultSiteUI.java

License:Apache License

/**
 * Adds handler for credential posts./*from  w  w  w .  j  a  v a2s .c om*/
 */
private void addCredentialPostRequestHandler() {

    // Add handler for credentials post.
    VaadinSession.getCurrent().addRequestHandler(new RequestHandler() {
        @Override
        public boolean handleRequest(VaadinSession session, VaadinRequest request, VaadinResponse response)
                throws IOException {
            if (!StringUtils.isEmpty(request.getParameter("username"))
                    && !StringUtils.isEmpty(request.getParameter("password")) && getSession() != null
                    && getSession().getSession().getAttribute("user") == null) {

                final String emailAddress = request.getParameter("username");
                final String password = request.getParameter("password");

                final EntityManager entityManager = getSite().getSiteContext().getEntityManager();
                final Locale locale = getLocale();

                final Company company = resolveCompany(entityManager, (VaadinServletRequest) request);
                final User user = UserDao.getUser(entityManager, company, emailAddress);

                final String errorKey = LoginService.login(getSite().getSiteContext(), company, user,
                        emailAddress, password);

                if (errorKey == null) {

                    // Login success
                    final List<Group> groups = UserDao.getUserGroups(entityManager, company, user);
                    DefaultSiteUI.getSecurityProvider().setUser(user, groups);

                    // Check for imminent password expiration.
                    if (user.getPasswordExpirationDate() != null && new DateTime().plusDays(14).toDate()
                            .getTime() > user.getPasswordExpirationDate().getTime()) {
                        final DateTime expirationDate = new DateTime(user.getPasswordExpirationDate());
                        final DateTime currentDate = new DateTime();
                        final long daysUntilExpiration = new Duration(currentDate.toDate().getTime(),
                                expirationDate.toDate().getTime()).getStandardDays();

                        setNotification(DefaultSiteUI.getLocalizationProvider().localize(
                                "message-password-expires-in-days", locale) + ": " + daysUntilExpiration,
                                Notification.Type.WARNING_MESSAGE);
                    } else {
                        setNotification(DefaultSiteUI.getLocalizationProvider().localize(
                                "message-login-success", locale), Notification.Type.TRAY_NOTIFICATION);
                    }
                } else {
                    // Login failure
                    setNotification(DefaultSiteUI.getLocalizationProvider().localize(errorKey, locale),
                            Notification.Type.WARNING_MESSAGE);
                }

            }
            return false; // No response was written
        }
    });
}