Example usage for javax.servlet.http HttpServletResponse setContentLength

Introduction

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

Prototype

public void setContentLength(int len);

Source Link

Document

Sets the length of the content body in the response In HTTP servlets, this method sets the HTTP Content-Length header.

Usage

From source file:org.dspace.app.webui.cris.servlet.ResearcherPictureServlet.java

@Override
protected void doGet(HttpServletRequest req, HttpServletResponse response)
        throws ServletException, IOException {

    String idString = req.getPathInfo();
    String[] pathInfo = idString.split("/", 2);
    String authorityKey = pathInfo[1];

    Integer id = ResearcherPageUtils.getRealPersistentIdentifier(authorityKey, ResearcherPage.class);

    if (id == null) {

        response.sendError(HttpServletResponse.SC_NOT_FOUND);
        return;//w w  w.j  ava 2  s  .  c o m
    }

    ResearcherPage rp = ResearcherPageUtils.getCrisObject(id, ResearcherPage.class);
    File file = new File(ConfigurationManager.getProperty(CrisConstants.CFG_MODULE, "researcherpage.file.path")
            + File.separatorChar + JDynATagLibraryFunctions.getFileFolder(rp.getPict().getValue())
            + File.separatorChar + JDynATagLibraryFunctions.getFileName(rp.getPict().getValue()));

    InputStream is = null;
    try {
        is = new FileInputStream(file);

        response.setContentType(req.getSession().getServletContext().getMimeType(file.getName()));
        Long len = file.length();
        response.setContentLength(len.intValue());
        response.setHeader("Content-Disposition", "attachment; filename=" + file.getName());
        FileCopyUtils.copy(is, response.getOutputStream());
        response.getOutputStream().flush();
    } finally {
        if (is != null) {
            IOUtils.closeQuietly(is);
        }

    }

}

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From source file:com.exedio.cope.live.MediaServlet.java

void doRequest(final HttpServletRequest request, final HttpServletResponse response, final Anchor anchor) {
    final String featureID = request.getParameter(FEATURE);
    if (featureID == null)
        throw new NullPointerException();
    final Media feature = (Media) model.getFeature(featureID);
    if (feature == null)
        throw new NullPointerException(featureID);

    final String itemID = request.getParameter(ITEM);
    if (itemID == null)
        throw new NullPointerException();

    final Item item;
    try {/*from   ww  w.j  av  a2  s  .  com*/
        startTransaction("media(" + featureID + ',' + itemID + ')');
        item = model.getItem(itemID);
        model.commit();
    } catch (final NoSuchIDException e) {
        throw new RuntimeException(e);
    } finally {
        model.rollbackIfNotCommitted();
    }

    final FileItem fi = anchor.getModification(feature, item);
    if (fi == null)
        throw new NullPointerException(featureID + '-' + itemID);
    response.setContentType(fi.getContentType());
    response.setContentLength((int) fi.getSize());

    InputStream in = null;
    ServletOutputStream out = null;
    try {
        in = fi.getInputStream();
        out = response.getOutputStream();

        final byte[] b = new byte[20 * 1024];
        for (int len = in.read(b); len >= 0; len = in.read(b))
            out.write(b, 0, len);
    } catch (final IOException e) {
        throw new RuntimeException(e);
    } finally {
        if (in != null) {
            try {
                in.close();
            } catch (final IOException e) {
                e.printStackTrace();
            }
        }
        if (out != null) {
            try {
                out.close();
            } catch (final IOException e) {
                e.printStackTrace();
            }
        }
    }
}

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From source file:gr.abiss.calipso.controller.AbstractServiceBasedRestController.java

@RequestMapping(value = "{subjectId}/uploads/{propertyName}/files/{id}", method = RequestMethod.GET)
public void getFile(HttpServletResponse response, @PathVariable String subjectId,
        @PathVariable String propertyName, @PathVariable String id) {
    Configuration config = ConfigurationFactory.getConfiguration();
    String fileUploadDirectory = config.getString(ConfigurationFactory.FILES_DIR);
    BinaryFile file = binaryFileService.findById(id);
    File fileFile = new File(fileUploadDirectory + file.getParentPath() + "/" + file.getNewFilename());
    response.setContentType(file.getContentType());
    response.setContentLength(file.getSize().intValue());
    try {//from  w w w . ja v a2 s. c  o  m
        InputStream is = new FileInputStream(fileFile);
        IOUtils.copy(is, response.getOutputStream());
    } catch (IOException e) {
        LOGGER.error("Could not show picture " + id, e);
    }
}

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From source file:jp.co.opentone.bsol.framework.web.view.util.ViewHelper.java

protected void setDownloadResponseHeader(HttpServletRequest request, HttpServletResponse response,
        String fileName, boolean downloadByRealName, int length) {
    setContentType(response, fileName);// w w w . j  a v a 2 s . c om
    setHeaderFileName(request, response, fileName, downloadByRealName);
    response.addHeader("Accept-Ranges", "none"); // For Acrobat Reader 7.0

    if (length > 0) {
        response.setContentLength(length);
    }
}

---

From source file:org.shredzone.commons.gravatar.GravatarCacheServlet.java

@Override
protected void doService(HttpServletRequest req, HttpServletResponse resp) throws Exception {
    Matcher m = HASH_PATTERN.matcher(req.getPathInfo());
    if (!m.matches()) {
        resp.sendError(HttpServletResponse.SC_NOT_FOUND);
        return;/*from w ww  .j a v a 2s . c  om*/
    }

    String hash = m.group(1);

    GravatarService gs = getWebApplicationContext().getBean("gravatarService", GravatarService.class);
    File gravatarFile = gs.fetchGravatar(hash);

    long modifiedSinceTs = -1;
    try {
        modifiedSinceTs = req.getDateHeader("If-Modified-Since");
    } catch (IllegalArgumentException ex) {
        // As stated in RFC2616 Sec. 14.25, an invalid date will just be ignored.
    }

    if (modifiedSinceTs >= 0 && (modifiedSinceTs / 1000L) == (gravatarFile.lastModified() / 1000L)) {
        // The image has not been modified since last request
        resp.sendError(HttpServletResponse.SC_NOT_MODIFIED);
        return;
    }

    long size = gravatarFile.length();
    if (size > 0 && size <= Integer.MAX_VALUE) {
        // Cast to int is safe
        resp.setContentLength((int) size);
    }

    resp.setContentType("image/png");
    resp.setDateHeader("Date", System.currentTimeMillis());
    resp.setDateHeader("Last-Modified", gravatarFile.lastModified());

    try (InputStream in = new FileInputStream(gravatarFile)) {
        FileCopyUtils.copy(in, resp.getOutputStream());
    }
}

---

From source file:UrlServlet.java

public void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {

    //get the 'file' parameter
    String fileName = (String) request.getParameter("file");
    if (fileName == null || fileName.equals(""))
        throw new ServletException("Invalid or non-existent file parameter in UrlServlet servlet.");

    if (fileName.indexOf(".pdf") == -1)
        fileName = fileName + ".pdf";

    URL pdfDir = null;//from  w w w .j a  v  a2s.c o  m
    URLConnection urlConn = null;
    ServletOutputStream stream = null;
    BufferedInputStream buf = null;
    try {

        pdfDir = new URL(getServletContext().getInitParameter("remote-pdf-dir") + fileName);

    } catch (MalformedURLException mue) {

        throw new ServletException(mue.getMessage());
    }
    try {

        stream = response.getOutputStream();

        //set response headers
        response.setContentType("application/pdf");
        response.addHeader("Content-Disposition", "attachment; filename=" + fileName);

        urlConn = pdfDir.openConnection();
        response.setContentLength((int) urlConn.getContentLength());

        buf = new BufferedInputStream(urlConn.getInputStream());
        int readBytes = 0;

        //read from the file; write to the ServletOutputStream
        while ((readBytes = buf.read()) != -1)
            stream.write(readBytes);
    } catch (IOException ioe) {
        throw new ServletException(ioe.getMessage());
    } finally {
        if (stream != null)
            stream.close();
        if (buf != null)
            buf.close();
    }
}

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From source file:gr.abiss.calipso.controller.AbstractServiceBasedRestController.java

@RequestMapping(value = "{subjectId}/uploads/{propertyName}/thumbs/{id}", method = RequestMethod.GET)
public void thumbnail(HttpServletResponse response, @PathVariable String subjectId,
        @PathVariable String propertyName, @PathVariable String id) {
    Configuration config = ConfigurationFactory.getConfiguration();
    String fileUploadDirectory = config.getString(ConfigurationFactory.FILES_DIR);
    BinaryFile file = binaryFileService.findById(id);
    File fileFile = new File(fileUploadDirectory + file.getParentPath() + "/" + file.getThumbnailFilename());
    response.setContentType(file.getContentType());
    response.setContentLength(file.getThumbnailSize().intValue());
    try {/*w  ww.j a  va 2s. c om*/
        InputStream is = new FileInputStream(fileFile);
        IOUtils.copy(is, response.getOutputStream());
    } catch (IOException e) {
        LOGGER.error("Could not show thumbnail " + id, e);
    }
}

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From source file:net.cbtltd.server.UploadFileService.java

private void sendResponse(HttpServletResponse response, FormResponse details) {
    try {/*from   w  w  w  . j  a v  a2s .  com*/
        response.setStatus(HttpServletResponse.SC_OK);
        response.setContentType("text/plain");

        String msg = details.getStatus() + "," + (details.getReason() == null ? "" : details.getReason());
        LOG.debug("sendResponse " + msg);
        response.setContentLength(msg.length());
        response.getWriter().print(msg);
        response.getWriter().flush();
    } catch (Throwable x) {
        MonitorService.log(x);
    }
}

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From source file:com.npower.dl.SoftwareDownloadServlet.java

public void doDownload(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    String requestUri = request.getRequestURI();
    log.info("Download Service: Download Content: uri: " + requestUri);

    String packageID = parserPackageID(requestUri);
    ManagementBeanFactory factory = null;
    try {/*  ww w .j a v  a2 s.com*/
        factory = ManagementBeanFactory.newInstance(EngineConfig.getProperties());
        SoftwareBean bean = factory.createSoftwareBean();
        SoftwarePackage pkg = bean.getPackageByID(Long.parseLong(packageID));
        if (pkg == null) {
            throw new DMException("Could not found download package by package ID: " + packageID);
        }
        InputStream ins = pkg.getBinary().getBinaryBlob().getBinaryStream();
        if (pkg.getSize() > 0) {
            response.setContentType(pkg.getMimeType());
            response.setContentLength(pkg.getSize());
            OutputStream out = response.getOutputStream();
            byte[] buf = new byte[1024];
            int len = ins.read(buf);
            while (len > 0) {
                out.write(buf, 0, len);
                len = ins.read(buf);
            }
            out.flush();
            //out.close();
        }
    } catch (Exception ex) {
        throw new ServletException(ex);
    } finally {
        if (factory != null) {
            factory.release();
        }
    }
}

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From source file:com.qcadoo.view.internal.controllers.FileResolverController.java

@RequestMapping(value = "{tenantId:\\d+}/{firstLevel:\\d+}/{secondLevel:\\d+}/{fileName}", method = RequestMethod.GET)
public void resolve(final HttpServletRequest request, final HttpServletResponse response,
        @PathVariable("tenantId") final String tenantId) {
    String path = fileService.getPathFromUrl(request.getRequestURI());

    boolean removeFileAfterProcessing = request.getParameterMap().containsKey("clean");

    if (Integer.valueOf(tenantId) != MultiTenantUtil.getCurrentTenantId()) {
        try {//w  w  w  . j  a v a 2  s  . c  o m
            response.sendRedirect("/error.html?code=404");
        } catch (IOException e) {
            throw new IllegalStateException(e.getMessage(), e);
        }
    }

    InputStream input = null;

    try {
        input = fileService.getInputStream(path);

        if (input == null) {
            response.sendRedirect("/error.html?code=404");
        } else {
            OutputStream output = response.getOutputStream();

            int bytes = IOUtils.copy(input, output);

            response.setHeader("Content-disposition", "inline; filename=" + fileService.getName(path));
            response.setContentType(fileService.getContentType(path));
            response.setContentLength(bytes);

            output.flush();
        }
    } catch (IOException e) {
        IOUtils.closeQuietly(input);
        throw new IllegalStateException(e.getMessage(), e);
    }

    if (removeFileAfterProcessing) {
        fileService.remove(path);
    }
}

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