Example usage for com.vaadin.server VaadinSession getCurrent

List of usage examples for com.vaadin.server VaadinSession getCurrent

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Introduction

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

Prototype

public static VaadinSession getCurrent()

Source Link

Document

Gets the currently used session.

Usage

From source file:annis.visualizers.component.AudioVisualizer.java

License:Apache License

@Override
public MediaElementPlayer createComponent(VisualizerInput input, VisualizationToggle visToggle) {
    List<String> corpusPath = CommonHelper.getCorpusPath(input.getDocument().getGraph(), input.getDocument());

    String binaryServletPath = "";

    String corpusName = corpusPath.get(corpusPath.size() - 1);
    String documentName = corpusPath.get(0);

    corpusName = urlPathEscape.escape(corpusName);
    documentName = urlPathEscape.escape(documentName);

    WebResource resMeta = Helper.getAnnisWebResource().path("meta/binary").path(corpusName).path(documentName);
    List<AnnisBinaryMetaData> meta = resMeta.get(new GenericType<List<AnnisBinaryMetaData>>() {
    });//ww w .j  a  v  a 2  s  . c o m

    // if there is no document at all don't fail
    String mimeType = meta.size() > 0 ? null : "audio/ogg";
    for (AnnisBinaryMetaData m : meta) {
        if (m.getMimeType().startsWith("audio/")) {
            mimeType = m.getMimeType();
            break;
        }
    }

    Validate.notNull(mimeType,
            "There must be at least one binary file for the document with a audio mime type");

    String mimeTypeEncoded = mimeType;
    mimeTypeEncoded = urlParamEscape.escape(mimeType);

    binaryServletPath = input.getContextPath() + "/Binary?" + "documentName=" + documentName
            + "&toplevelCorpusName=" + corpusName + "&mime=" + mimeTypeEncoded;

    MediaElementPlayer player = new MediaElementPlayer(MediaElement.audio, binaryServletPath, mimeType);

    if (VaadinSession.getCurrent().getAttribute(MediaController.class) != null) {
        VaadinSession.getCurrent().getAttribute(MediaController.class).addMediaPlayer(player, input.getId(),
                visToggle);
    }

    return player;
}

From source file:annis.visualizers.component.grid.GridVisualizer.java

License:Apache License

@Override
public GridComponent createComponent(VisualizerInput visInput, VisualizationToggle visToggle) {
    MediaController mediaController = VaadinSession.getCurrent().getAttribute(MediaController.class);
    PDFController pdfController = VaadinSession.getCurrent().getAttribute(PDFController.class);
    GridComponent component = null;/*from  w ww . java  2  s.  co  m*/
    try {
        component = new GridComponent(visInput, mediaController, pdfController, true, null);
    } catch (Exception ex) {
        log.error("create {} failed", GridComponent.class.getName(), ex);
    }
    return component;
}

From source file:annis.visualizers.component.kwic.KWICVisualizer.java

License:Apache License

@Override
public KWICInterface createComponent(VisualizerInput visInput, VisualizationToggle visToggle) {
    MediaController mediaController = VaadinSession.getCurrent().getAttribute(MediaController.class);
    PDFController pdfController = VaadinSession.getCurrent().getAttribute(PDFController.class);

    List<STextualDS> texts = visInput.getDocument().getDocumentGraph().getTextualDSs();

    // having the KWIC nested in a panel can slow down rendering
    if (texts.size() == 1) {
        // directly return the single non-nested KWIC panel
        return new KWICComponent(visInput, mediaController, pdfController, texts.get(0));
    } else {//from   w  w  w. j av a2 s. c  om
        // return a more complicated implementation which can handle several texts
        return new KWICMultipleTextComponent(visInput, mediaController, pdfController);
    }
}

From source file:annis.visualizers.component.KWICPanel.java

License:Apache License

@Override
public KWICInterface createComponent(VisualizerInput visInput, VisualizationToggle visToggle) {
    MediaController mediaController = VaadinSession.getCurrent().getAttribute(MediaController.class);
    PDFController pdfController = VaadinSession.getCurrent().getAttribute(PDFController.class);

    EList<STextualDS> texts = visInput.getDocument().getSDocumentGraph().getSTextualDSs();

    // having the KWIC nested in a panel can slow down rendering
    if (texts.size() == 1) {
        // directly return the single non-nested KWIC panel
        return new KWICPanelImpl(visInput, mediaController, pdfController, texts.get(0));
    } else {/*ww w .  j a v a2  s  .  c  o m*/
        // return a more complicated implementation which can handle several texts
        return new KWICMultipleTextImpl(visInput, mediaController, pdfController);
    }
}

From source file:annis.visualizers.component.pdf.PDFVisualizer.java

License:Apache License

@Override
public Panel createComponent(VisualizerInput input, VisualizationToggle visToggle) {

    PDFViewer pdfViewer = null;/*w ww  . java2  s  .c o  m*/

    try {

        if (VaadinSession.getCurrent().getAttribute(PDFController.class) != null) {

            VaadinSession session = VaadinSession.getCurrent();
            PDFController pdfController = session.getAttribute(PDFController.class);
            pdfViewer = new PDFViewerImpl(input, visToggle);
            pdfController.addPDF(input.getId(), pdfViewer);
        }

    } catch (Exception ex) {
        log.error("could not create pdf vis", ex);
    }

    return (Panel) pdfViewer;
}

From source file:annis.visualizers.component.VideoVisualizer.java

License:Apache License

@Override
public MediaElementPlayer createComponent(VisualizerInput input, VisualizationToggle visToggle) {
    List<String> corpusPath = CommonHelper.getCorpusPath(input.getDocument().getGraph(), input.getDocument());

    String binaryServletPath = "";

    String corpusName = corpusPath.get(corpusPath.size() - 1);
    String documentName = corpusPath.get(0);
    corpusName = urlPathEscape.escape(corpusName);
    documentName = urlPathEscape.escape(documentName);

    WebResource resMeta = Helper.getAnnisWebResource().path("meta/binary").path(corpusName).path(documentName);
    List<AnnisBinaryMetaData> meta = resMeta.get(new GenericType<List<AnnisBinaryMetaData>>() {
    });//  w  ww . j  a  v  a2 s. com

    // if there is no document at all don't fail
    String mimeType = meta.size() > 0 ? null : "video/webm";
    for (AnnisBinaryMetaData m : meta) {
        if (m.getMimeType().startsWith("video/")) {
            mimeType = m.getMimeType();
            break;
        }
    }
    Validate.notNull(mimeType,
            "There must be at least one binary file for the document with a video mime type");

    String mimeTypeEncoded = mimeType;
    mimeTypeEncoded = urlParamEscape.escape(mimeType);

    binaryServletPath = input.getContextPath() + "/Binary?" + "documentName=" + documentName
            + "&toplevelCorpusName=" + corpusName + "&mime=" + mimeTypeEncoded;

    MediaElementPlayer player = new MediaElementPlayer(MediaElement.video, binaryServletPath, mimeType);

    if (VaadinSession.getCurrent().getAttribute(MediaController.class) != null) {
        VaadinSession.getCurrent().getAttribute(MediaController.class).addMediaPlayer(player, input.getId(),
                visToggle);
    }

    return player;
}

From source file:ch.bfh.ti.soed.hs16.srs.black.SupervisingController.java

License:Open Source License

@Override
protected void init(VaadinRequest vaadinRequest) {
    // Set the title of the site in the browser
    Page.getCurrent().setTitle("SRS - Smart ReservationEntity System");

    dataModel = JPADataAccess.getInstance();
    loginView = new LoginView();
    reservationView = new ReservationView();
    signUpView = new SignUpView();
    navigator = new Navigator(this, this);

    // Adding the login view to the navigator
    navigator.addView(LoginView.NAME, loginView);

    // Setting the error view of the navigator to the login view
    // This way the navigator will always default to the login view
    navigator.setErrorView(loginView);/*from w  ww.  j a v  a 2 s  .c  o  m*/

    // Adding the reservation view to the navigator
    navigator.addView(ReservationView.NAME, reservationView);

    // Adding the sign up view to the navigator
    navigator.addView(SignUpView.NAME, signUpView);

    // Instantiating the controllers for the two views
    reservationController = new ReservationController(dataModel, reservationView, navigator);
    new LoginController(dataModel, loginView, navigator);
    new SignUpController(dataModel, signUpView, navigator);

    // We use a view change handler to ensure the user is always redirected
    // to the login view if the user is not logged in
    navigator.addViewChangeListener(new ViewChangeListener() {

        @Override
        public boolean beforeViewChange(ViewChangeEvent event) {
            // Check if a user has logged in
            boolean isLoggedIn = VaadinSession.getCurrent().getAttribute("user") != null;

            boolean isLoginView = event.getNewView() instanceof LoginView;
            boolean isSignUpView = event.getNewView() instanceof SignUpView;
            boolean isReservationView = event.getNewView() instanceof ReservationView;

            if (!isLoggedIn && isReservationView) {
                // Always redirect to login view if a user has not yet logged in
                navigator.navigateTo(LoginView.NAME);
                return false;
            } else if (isLoggedIn && (isLoginView || isSignUpView)) {
                // Access attempt to the login or signup view while already logged in gets cancelled
                return false;
            }
            return true;
        }

        @Override
        public void afterViewChange(ViewChangeEvent event) {
            try {
                reservationController.createList((String) VaadinSession.getCurrent().getAttribute("user"));
            } catch (Exception e) {
                System.out.println(e.getMessage());
            }
        }
    });
}

From source file:ch.bfh.ti.soed.hs16.srs.black.view.loginView.LoginController.java

License:Open Source License

public void login(Button.ClickEvent event) {
    String userName = loginView.getUsernameField().getValue();
    String password = loginView.getPasswordField().getValue();

    try {/*  ww w .j  a va 2 s. com*/
        Customer customer = dataModel.getCustomer(userName);
        if (customer.getPassword().equals(password)) {
            // Store the current user in the service session
            VaadinSession.getCurrent().setAttribute("user", userName);

            // Navigate to the reservation view
            navigator.navigateTo(ReservationView.NAME);

            // Clear the fields of the login view
            loginView.getUsernameField().clear();
            loginView.getPasswordField().clear();
        } else {
            throw new AuthenticationException();
        }
    } catch (Exception e) {
        Notification accessDeniedNf = new Notification("Access Denied!",
                "Please enter a valid username/password combination.");
        accessDeniedNf.show(Page.getCurrent());
        accessDeniedNf.setDelayMsec(2000);
        loginView.getPasswordField().clear();
        loginView.getPasswordField().focus();
    }
}

From source file:ch.bfh.ti.soed.hs16.srs.black.view.reservationView.ReservationController.java

License:Open Source License

public ReservationController(DataModel dataModel, ReservationView reservationView, Navigator navigator) {
    this.dataModel = dataModel;
    this.reservationView = reservationView;
    this.navigator = navigator;

    reservationView.getLogoutButton().addClickListener(clickEvent -> {
        // Logout the user / end the session
        VaadinSession.getCurrent().setAttribute("user", null);

        // Refresh this view, the navigator should redirect to login view$
        navigator.navigateTo(LoginView.NAME);
    });/* w w w  .  j a  v a 2 s.com*/

    reservationView.getRoomSelect()
            .addValueChangeListener(e -> roomNumber = Integer.parseInt(e.getProperty().getValue().toString()));

    for (int i = 1; i < dataModel.getRooms().size() + 1; i++) {
        reservationView.getRoomSelect().addItem(i);
        reservationView.getRoomSelect().setItemCaption(i, "Room " + i);
    }

    reservationView.getMakeReservationButton().addClickListener(clickEvent -> {
        Date begin = reservationView.getFromField().getValue();
        Date end = reservationView.getToField().getValue();
        SimpleDateFormat df = new SimpleDateFormat("dd.MM.yyyy HH:mm");
        Notification notification = new Notification("");
        notification.setDelayMsec(2000);
        String username = String.valueOf(VaadinSession.getCurrent().getAttribute("user"));

        try {
            Customer customer = dataModel.getCustomer(username);
            Room room = dataModel.getRoom(roomNumber);
            dataModel.addReservation(customer, room, begin, end);
            notification.setCaption("Success");
            notification.setDescription("Added reservation for: " + username + ", Room Nr.: " + roomNumber
                    + ", From: " + df.format(begin) + " until " + df.format(end));
            notification.show(Page.getCurrent());
            try {
                createList(username);
            } catch (Exception e) {
                e.printStackTrace();
            }
        } catch (IllegalArgumentException iae) {
            notification.setCaption("Error!");
            notification.setDescription("Please check the entries you made for your reservation.");
            notification.show(Page.getCurrent());
        } catch (RuntimeException re) {
            notification.setCaption("Error!");
            notification.setDescription("Room couldn't be found.\nCurrently available rooms: "
                    + dataModel.getRooms().stream().map(Object::toString).collect(Collectors.joining(", "))
                            .replaceAll("[^\\d , ][^\\@]*\\@", ""));
            notification.show(Page.getCurrent());
        } catch (Exception e) {
            notification.setCaption("Error!");
            notification.setDescription("There already exists a reservation for the chosen time range.");
            notification.show(Page.getCurrent());
        }
    });

    reservationView.getLogoutButton().addClickListener(clickEvent -> {
        reservationView.getFromField().clear();
        reservationView.getToField().clear();
        reservationView.getRoomSelect().clear();
    });
}

From source file:ch.bfh.ti.soed.hs16.srs.purple.controller.LoginController.java

License:Open Source License

/**
 * Function logs an user in with the given username and password
 *
 * @param username//  w  ww .j  av  a 2 s .  c  om
 *            - The username of the user
 * @param password
 *            - The password of the user
 *
 * @return true if user logged in, false if user was not found with the
 *         username and password
 */
public boolean loginWithUser(String username, String password) {
    if (username != null && password != null && !username.isEmpty() && !password.isEmpty()) {
        if (checkIfUserExists(username) && checkPasswordForUsername(password)) {
            if (VaadinSession.getCurrent() != null) {
                VaadinSession.getCurrent().setAttribute(USER_SESSION_ATTRIBUTE, username);
            }
            return true;
        }
    }
    return false;
}