Example usage for com.vaadin.server VaadinResponse getWriter

Introduction

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

Prototype

public PrintWriter getWriter() throws IOException;

Source Link

Document

Returns a PrintWriter object that can send character text to the client.

Usage

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

License:Apache License

private void init() {
    if (initialized) {
        return;//from w w  w .ja  va 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:pl.exsio.plupload.PluploadReceiver.java

License:Open Source License

@Override
public boolean handleRequest(VaadinSession session, VaadinRequest request, VaadinResponse response)
        throws IOException {
    if (request.getPathInfo() != null && request.getPathInfo().endsWith(UPLOAD_ACTION_PATH)) {
        if (request instanceof VaadinServletRequest) {
            VaadinServletRequest vsr = (VaadinServletRequest) request;
            HttpServletRequest req = vsr.getHttpServletRequest();
            if (ServletFileUpload.isMultipartContent(req)) {
                try {
                    synchronized (this) {
                        ServletFileUpload upload = new ServletFileUpload();
                        FileItemIterator items = upload.getItemIterator(req);
                        PluploadChunk chunk = PluploadChunkFactory.create(items);
                        PluploadChunkHandler fileHandler = this.getExpectedFileHandler(chunk.getFileId());
                        fileHandler.handleUploadedChunk(chunk);
                        this.writeResponse(chunk, response);
                    }//from   ww w .  j  a  va 2s .co m
                } catch (Exception ex) {
                    response.getWriter().append("file upload unsuccessful, because of "
                            + ex.getClass().getName() + ":" + ex.getMessage());
                    throw new IOException(
                            "There was a problem during processing of uploaded chunk. Nested exceptions may have more info.",
                            ex);
                }
                return true;
            }
        }
    }
    return false;

}

From source file:pl.exsio.plupload.PluploadReceiver.java

License:Open Source License

protected void writeResponse(PluploadChunk chunk, VaadinResponse response) throws IOException {
    if (chunk.isLast()) {
        response.getWriter().append("file " + chunk.getName() + " uploaded successfuly");
    } else {/*  w  w w .  j av  a  2  s  .c o m*/
        response.getWriter().append(
                "file chunk " + (chunk.getChunk() + 1) + " of " + chunk.getChunks() + " uploaded successfuly");
    }
    response.setContentType("text/plain");
}