Example usage for javax.servlet.http HttpServletResponse setBufferSize

Introduction

In this page you can find the example usage for javax.servlet.http HttpServletResponse setBufferSize.

Prototype

public void setBufferSize(int size);

Source Link

Document

Sets the preferred buffer size for the body of the response.

Usage

From source file:net.mindengine.oculus.frontend.web.controllers.display.FileDisplayController.java

public static void showFile(HttpServletResponse response, String path, String fileName, String contentType)
        throws IOException {
    File file = new File(path);
    response.setBufferSize((int) file.length());
    response.setHeader("Content-Disposition", "attachment; filename=\"" + fileName + "\"");

    response.setContentType(contentType);
    response.setContentLength((int) file.length());

    byte[] bytes = new byte[(int) file.length()];
    FileInputStream fis = new FileInputStream(file);
    fis.read(bytes);//from   www  .  j  av a  2 s.co m
    fis.close();

    FileCopyUtils.copy(bytes, response.getOutputStream());
}

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From source file:fiftyone.mobile.detection.webapp.JavascriptProvider.java

static void sendJavaScript(HttpServletRequest request, HttpServletResponse response, Dataset dataSet,
        StringBuilder javascript) throws IOException {

    response.reset();/*  w  ww  .j a va  2 s. c om*/
    response.setContentType("application/x-javascript");
    response.setCharacterEncoding("UTF-8");
    response.setHeader("Vary", "User-Agent");
    response.setHeader("Cache-Control", "public");
    response.setHeader("Expires", dataSet.nextUpdate.toString());
    response.setHeader("Last-Modified", dataSet.published.toString());
    try {
        response.setHeader("ETag", eTagHash(dataSet, request));
    } catch (Exception ex) {
        // The response doesn't support eTags. Nothing we can do.
    }
    response.setBufferSize(DEFAULT_BUFFER_SIZE);
    response.setHeader("Content-Length", Integer.toString(javascript.length()));

    response.getOutputStream().println(javascript.toString());
    response.getOutputStream().flush();
    response.getOutputStream().close();
}

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From source file:MyServlet.java

public void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException {
    res.setBufferSize(8 * 1024); // 8K buffer
    res.setContentType("text/html");
    PrintWriter out = res.getWriter();

    int size = res.getBufferSize(); // returns 8096 or greater

    // Record the default size, in the log
    log("The default buffer size is " + size);

    out.println("The client won't see this");
    res.reset();//from ww w . ja v a  2 s .c  om
    out.println("And this won't be seen if sendError() is called");
    if (req.getParameter("important_parameter") == null) {
        res.sendError(res.SC_BAD_REQUEST, "important_parameter needed");
    }
}

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From source file:Buffering.java

public void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException {
    res.setBufferSize(8 * 1024); // 8K 
    res.setContentType("text/html");
    PrintWriter out = res.getWriter();

    int size = res.getBufferSize(); // returns 8096 or greater

    log("The default buffer size is " + size);

    out.println("The client won't see this");
    res.reset();//from ww w.  j  ava 2  s.  c  o m
    out.println("Nor will the client see this!");
    res.reset();
    out.println("And this won't be seen if sendError() is called");
    if (req.getParameter("param") == null) {
        res.sendError(res.SC_BAD_REQUEST, "param needed");
    }
}

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From source file:com.javiermoreno.springboot.mvc.minimal.httpd.PingController.java

@RequestMapping(value = "/long", method = RequestMethod.GET)
@ResponseStatus(HttpStatus.OK)/*from  w  ww  .j  a  va 2 s.c o  m*/
void longPing(HttpServletResponse response) throws IOException, InterruptedException {
    response.setBufferSize(0);
    PrintWriter out = response.getWriter();
    out.println();
    out.flush();
    for (int i = 0; i < 60 * 5; i++) {
        out.format("Current server time: %s.\r\n", new Date());
        out.flush();
        Thread.sleep(1000);
    }
}

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From source file:nl.tue.gale.ae.JSONServlet.java

private void reply(String s, HttpServletResponse resp) throws IOException {
    resp.setBufferSize(8192);
    BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(resp.getOutputStream()));
    bw.write(s);/*from   w w  w  .j  ava 2  s .  c o m*/
    bw.close();
}

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From source file:org.gwtwidgets.server.filters.ResponseHeaderFilter.java

private void addHeaders(HttpServletRequest request, HttpServletResponse response) {
    response.setBufferSize(0);
    String query = request.getRequestURI();
    Matcher urlMatcher = urlPattern.matcher(query);
    if (!urlMatcher.matches())
        return;//  w  ww .  j a  v a  2 s  .c o m
    for (int i = 0; i < headers.length; i++)
        response.setHeader(headers[i], values[i]);
}

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From source file:MyServlet.java

public void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException {

    res.setContentType("text/html");

    // Ask for a 16K byte response buffer; do not set the content length
    res.setBufferSize(16 * 1024);

    PrintWriter out = res.getWriter();
    out.println("<HTML>");
    out.println("<HEAD><TITLE>Hello World</TITLE></HEAD>");
    out.println("<BODY>");
    out.println("<BIG>Less than 16K of response body</BIG>");
    out.println("</BODY></HTML>");
}

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From source file:com.cloudseal.spring.client.namespace.CloudSealLogoutImageFilter.java

public void writeContent(HttpServletResponse response, String contentType, InputStream content)
        throws IOException {
    response.setBufferSize(DEFAULT_BUFFER_SIZE);
    response.setContentType(contentType);

    BufferedInputStream input = null;
    BufferedOutputStream output = null;

    try {// www.j  av a 2 s.co  m
        input = new BufferedInputStream(content, DEFAULT_BUFFER_SIZE);
        output = new BufferedOutputStream(response.getOutputStream(), DEFAULT_BUFFER_SIZE);

        byte[] buffer = new byte[DEFAULT_BUFFER_SIZE];
        int length = 0;
        while ((length = input.read(buffer)) > 0) {
            output.write(buffer, 0, length);
        }
    } finally {
        output.close();
        input.close();
    }
}

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From source file:net.siegmar.japtproxy.JaptProxyServlet.java

/**
 * Check the requested data and forward the request to internal sender.
 *
 * @param req the HttpServletRequest object
 * @param res the HttpServletResponse object
 * @throws ServletException {@inheritDoc}
 * @throws IOException      {@inheritDoc}
 *//*from   w w  w .ja v a 2s  .co  m*/
@Override
protected void doGet(final HttpServletRequest req, final HttpServletResponse res)
        throws ServletException, IOException {
    res.setBufferSize(Util.DEFAULT_BUFFER_SIZE);

    MDC.put("REQUEST_ID", DigestUtils.md5Hex(Long.toString(System.currentTimeMillis())));

    LOG.debug("Incoming request from IP '{}', " + "User-Agent '{}'", req.getRemoteAddr(),
            req.getHeader(HttpHeaderConstants.USER_AGENT));

    if (LOG.isDebugEnabled()) {
        logHeader(req);
    }

    try {
        japtProxy.handleRequest(req, res);
    } catch (final InvalidRequestException e) {
        LOG.warn(e.getMessage());
        res.sendError(HttpServletResponse.SC_BAD_REQUEST, "Invalid request");
        return;
    } catch (final UnknownBackendException e) {
        LOG.info(e.getMessage());
        res.sendError(HttpServletResponse.SC_BAD_REQUEST, "Unknown backend");
        return;
    } catch (final ResourceUnavailableException e) {
        LOG.debug(e.getMessage(), e);
        res.sendError(HttpServletResponse.SC_NOT_FOUND);
        return;
    } catch (final HandlingException e) {
        LOG.error("HandlingException", e);
        res.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
        return;
    } finally {
        MDC.clear();
    }

    res.flushBuffer();
}

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