Example usage for java.io BufferedOutputStream flush

List of usage examples for java.io BufferedOutputStream flush

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Introduction

In this page you can find the example usage for java.io BufferedOutputStream flush.

Prototype

@Override
public synchronized void flush() throws IOException

Source Link

Document

Flushes this buffered output stream.

Usage

From source file:com.gsr.myschool.server.reporting.excel.ExcelController.java

@RequestMapping(method = RequestMethod.GET, value = "/excel", produces = "application/vnd.ms-excel")
@ResponseStatus(HttpStatus.OK)//from   ww w.jav a  2 s . c  o  m
public void generateExcel(@RequestParam String fileName, HttpServletRequest request,
        HttpServletResponse response) {
    try {
        final int buffersize = 1024;
        final byte[] buffer = new byte[buffersize];

        response.addHeader("Content-Disposition", "attachment; filename=recherche.xls");

        File file = new File(
                request.getSession().getServletContext().getRealPath("/") + TMP_FOLDER_PATH + fileName);
        InputStream inputStream = new FileInputStream(file);
        BufferedOutputStream outputStream = new BufferedOutputStream(response.getOutputStream());

        int available = 0;
        while ((available = inputStream.read(buffer)) >= 0) {
            outputStream.write(buffer, 0, available);
        }

        inputStream.close();

        outputStream.flush();
        outputStream.close();

        file.delete();
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}

From source file:com.gsr.myschool.server.reporting.excel.ExcelController.java

@RequestMapping(method = RequestMethod.GET, value = "/dossierconvoques", produces = "application/vnd.ms-excel")
@ResponseStatus(HttpStatus.OK)/* w w w  . j a v a2s .c  om*/
public void generateDossierConvoquesExcel(@RequestParam String fileName, HttpServletRequest request,
        HttpServletResponse response) {
    try {
        final int buffersize = 1024;
        final byte[] buffer = new byte[buffersize];

        response.addHeader("Content-Disposition", "attachment; filename=dossierconvoques.xls");

        File file = new File(
                request.getSession().getServletContext().getRealPath("/") + TMP_FOLDER_PATH + fileName);
        InputStream inputStream = new FileInputStream(file);
        BufferedOutputStream outputStream = new BufferedOutputStream(response.getOutputStream());

        int available = 0;
        while ((available = inputStream.read(buffer)) >= 0) {
            outputStream.write(buffer, 0, available);
        }

        inputStream.close();

        outputStream.flush();
        outputStream.close();

        file.delete();
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}

From source file:com.sun.socialsite.web.rest.servlets.ProxyServlet.java

/**
 * Handles the HTTP <code>POST</code> method.
 * @param req servlet request/*from www.j a  v  a2  s .  co  m*/
 * @param resp servlet response
 */
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {

    URL url = getURL(req, req.getParameter("uri"));
    HttpURLConnection con = (HttpURLConnection) (url.openConnection());
    con.setDoOutput(true);
    con.setAllowUserInteraction(false);
    con.setUseCaches(false);

    // TODO: figure out why this is necessary for HTTPS URLs
    if (con instanceof HttpsURLConnection) {
        HostnameVerifier hv = new HostnameVerifier() {
            public boolean verify(String urlHostName, SSLSession session) {
                if ("localhost".equals(urlHostName) && "127.0.0.1".equals(session.getPeerHost())) {
                    return true;
                } else {
                    log.error("URL Host: " + urlHostName + " vs. " + session.getPeerHost());
                    return false;
                }
            }
        };
        ((HttpsURLConnection) con).setDefaultHostnameVerifier(hv);
    }
    // pass along all appropriate HTTP headers
    Enumeration headerNames = req.getHeaderNames();
    while (headerNames.hasMoreElements()) {
        String hname = (String) headerNames.nextElement();
        if (!unproxiedHeaders.contains(hname.toLowerCase())) {
            con.addRequestProperty(hname, req.getHeader(hname));
        }
    }
    con.connect();

    // read POST data from incoming request, write to outgoing request
    BufferedInputStream in = new BufferedInputStream(req.getInputStream());
    BufferedOutputStream out = new BufferedOutputStream(con.getOutputStream());
    byte buffer[] = new byte[8192];
    for (int count = 0; count != -1;) {
        count = in.read(buffer, 0, 8192);
        if (count != -1)
            out.write(buffer, 0, count);
    }
    in.close();
    out.close();
    out.flush();

    // read result headers of POST, write to response
    Map<String, List<String>> headers = con.getHeaderFields();
    for (String key : headers.keySet()) {
        if (key != null) { // TODO: why is this check necessary!
            List<String> header = headers.get(key);
            if (header.size() > 0)
                resp.setHeader(key, header.get(0));
        }
    }

    // read result data of POST, write out to response
    in = new BufferedInputStream(con.getInputStream());
    out = new BufferedOutputStream(resp.getOutputStream());
    for (int count = 0; count != -1;) {
        count = in.read(buffer, 0, 8192);
        if (count != -1)
            out.write(buffer, 0, count);
    }
    in.close();
    out.close();
    out.flush();

    con.disconnect();
}

From source file:com.fluidops.iwb.deepzoom.ImageLoader.java

private void generateIDCard(URI uri, Map<URI, Set<Value>> facets, String url, File file) {
    int width = 200;
    int height = 200;

    BufferedImage bi = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);

    Graphics2D ig2 = bi.createGraphics();
    ig2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    ig2.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);

    /* Special ID card handling for certain entity types */

    /*  TODO: special images based on type
    if(facets.containsKey(RDF.TYPE)) {/*  w  w w . j a v  a2s  .co  m*/
    Set<Value> facet = facets.get(RDF.TYPE);
            
    for(Value v : facet)
    {
        if(v.equals(Vocabulary.DCAT_DATASET))
        {
            
            Image img = null;
            try
            {
                img = ImageIO.read( new File( "webapps/ROOT/images/rdf.jpg" ) );
            }
            catch (MalformedURLException e)
            {
                logger.error(e.getMessage(), e);
            }
            catch (IOException e)
            {
                logger.error("Could not get image");
            }
            
            ig2.drawImage( img, 0, 0, null );        
            break;
        }
    }
    } */

    String label = EndpointImpl.api().getDataManager().getLabel(uri);
    Font font = new Font(Font.SANS_SERIF, Font.BOLD, 20);
    ig2.setFont(font);

    FontMetrics fontMetrics = ig2.getFontMetrics();
    int labelwidth = fontMetrics.stringWidth(label);
    if (labelwidth >= width) {
        int fontsize = 20 * width / labelwidth;
        font = new Font(Font.SANS_SERIF, Font.BOLD, fontsize);
        ig2.setFont(font);
        fontMetrics = ig2.getFontMetrics();
    }

    int x = (width - fontMetrics.stringWidth(label)) / 2;
    int y = (fontMetrics.getAscent() + (height - (fontMetrics.getAscent() + fontMetrics.getDescent())) / 2);

    ig2.setPaint(Color.black);

    ig2.drawString(label, x, y);

    BufferedOutputStream out;
    try {
        out = new BufferedOutputStream(new FileOutputStream(file));
        ImageIO.write(bi, "PNG", out);
        out.flush();
        out.close();

    } catch (IOException e) {
        logger.error(e.getMessage(), e);
    }
}

From source file:com.glaf.core.util.ZipUtils.java

public static byte[] getZipBytes(Map<String, InputStream> dataMap) {
    byte[] bytes = null;
    try {//from w ww. j  ava2s  . co m
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        BufferedOutputStream bos = new BufferedOutputStream(baos);
        JarOutputStream jos = new JarOutputStream(bos);
        if (dataMap != null) {
            Set<Entry<String, InputStream>> entrySet = dataMap.entrySet();
            for (Entry<String, InputStream> entry : entrySet) {
                String name = entry.getKey();
                InputStream inputStream = entry.getValue();
                if (name != null && inputStream != null) {
                    BufferedInputStream bis = new BufferedInputStream(inputStream);
                    JarEntry jarEntry = new JarEntry(name);
                    jos.putNextEntry(jarEntry);

                    while ((len = bis.read(buf)) >= 0) {
                        jos.write(buf, 0, len);
                    }

                    bis.close();
                    jos.closeEntry();
                }
            }
        }
        jos.flush();
        jos.close();
        bos.flush();
        bos.close();
        bytes = baos.toByteArray();
        baos.close();
        return bytes;
    } catch (Exception ex) {
        throw new RuntimeException(ex);
    }
}

From source file:net.sf.sveditor.core.tests.utils.BundleUtils.java

public void unpackBundleZipToFS(String bundle_path, File fs_path) {
    URL zip_url = fBundle.getEntry(bundle_path);
    TestCase.assertNotNull(zip_url);/*from   ww  w .j ava  2 s . com*/

    if (!fs_path.isDirectory()) {
        TestCase.assertTrue(fs_path.mkdirs());
    }

    try {
        InputStream in = zip_url.openStream();
        TestCase.assertNotNull(in);
        byte tmp[] = new byte[4 * 1024];
        int cnt;

        ZipInputStream zin = new ZipInputStream(in);
        ZipEntry ze;

        while ((ze = zin.getNextEntry()) != null) {
            // System.out.println("Entry: \"" + ze.getName() + "\"");
            File entry_f = new File(fs_path, ze.getName());
            if (ze.getName().endsWith("/")) {
                // Directory
                continue;
            }
            if (!entry_f.getParentFile().exists()) {
                TestCase.assertTrue(entry_f.getParentFile().mkdirs());
            }
            FileOutputStream fos = new FileOutputStream(entry_f);
            BufferedOutputStream bos = new BufferedOutputStream(fos, tmp.length);

            while ((cnt = zin.read(tmp, 0, tmp.length)) > 0) {
                bos.write(tmp, 0, cnt);
            }
            bos.flush();
            bos.close();
            fos.close();

            zin.closeEntry();
        }
        zin.close();
    } catch (IOException e) {
        e.printStackTrace();
        TestCase.fail("Failed to unpack zip file: " + e.getMessage());
    }
}

From source file:com.alcatel_lucent.nz.wnmsextract.reader.FileSelector.java

protected File unzip3(File zf) throws FileNotFoundException {
    //File f = null;
    String rename = zf.getAbsolutePath().replaceFirst("\\.zip", identifier + ".xml");//.replaceFirst("\\.gz", ".xml");
    File f = new File(rename);
    try {/*w  w w  . jav  a 2 s . c om*/
        FileInputStream fis = new FileInputStream(zf);

        ZipInputStream zin = new ZipInputStream(fis);
        ZipEntry ze;

        final byte[] content = new byte[BUFFER];

        while ((ze = zin.getNextEntry()) != null) {
            f = new File(getCalTempPath() + File.separator + ze.getName());
            FileOutputStream fos = new FileOutputStream(f);
            BufferedOutputStream bos = new BufferedOutputStream(fos, content.length);

            int n = 0;
            while (-1 != (n = zin.read(content))) {
                bos.write(content, 0, n);
            }
            bos.flush();
            bos.close();
        }

        fis.close();
        zin.close();
    } catch (IOException ioe) {
        jlog.error("Error processing Zip " + zf + " Excluding! :: " + ioe);
        return null;
    }
    //try again... what could go wrong
    /*
    if (checkMinFileSize(f) && retry_counter<MAX_UNGZIP_RETRIES){
       retry_counter++;
       f.delete();
       f = unzip2(zf);
    }
    */
    return f;
}

From source file:app.common.X3DViewer.java

/**
 * View an X3D file using an external X3DOM player
 *
 * @param grid//from w w w  .j a  v a2 s.  co m
 * @param smoothSteps
 * @param maxDecimateError
 * @throws IOException
 */
public static void viewX3DOM(Grid grid, int smoothSteps, double maxDecimateError) throws IOException {
    // TODO: Make thread safe using tempDir
    String dest = "/tmp/ringpopper/";
    File dir = new File(dest);
    dir.mkdirs();

    String pf = "x3dom/x3dom.css";
    String dest_pf = dest + pf;
    File dest_file = new File(dest_pf);
    File src_file = new File("src/html/" + pf);
    if (!dest_file.exists()) {
        System.out.println("Copying file: " + src_file + " to dir: " + dest);
        FileUtils.copyFile(src_file, dest_file, true);
    }

    pf = "x3dom/x3dom.js";
    dest_pf = dest + pf;
    dest_file = new File(dest_pf);
    src_file = new File("src/html/" + pf);
    if (!dest_file.exists()) {
        System.out.println("Copying file: " + src_file + " to dir: " + dest);
        FileUtils.copyFile(src_file, dest_file, true);
    }
    File f = new File("/tmp/ringpopper/out.xhtml");
    FileOutputStream fos = new FileOutputStream(f);
    BufferedOutputStream bos = new BufferedOutputStream(fos);
    PrintStream ps = new PrintStream(bos);

    try {
        ps.println(
                "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Strict//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd\">");
        ps.println("<html xmlns=\"http://www.w3.org/1999/xhtml\">");
        ps.println("<head>");
        ps.println("<meta http-equiv=\"X-UA-Compatible\" content=\"chrome=1\" />");
        ps.println("<meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\" />");
        ps.println("<title>Ring Popper Demo</title>");
        //            ps.println("<link rel='stylesheet' type='text/css' href='http://www.x3dom.org/x3dom/release/x3dom.css'></link>");
        ps.println("<link rel='stylesheet' type='text/css' href='x3dom/x3dom.css'></link>");
        ps.println("</head>");
        ps.println("<body>");

        ps.println("<p class='case'>");
        GridSaver.writeIsosurfaceMaker(grid, bos, "x3d", smoothSteps, maxDecimateError);

        //            ps.println("<script type='text/javascript' src='http://www.x3dom.org/x3dom/release/x3dom.js'></script>");
        ps.println("<script type='text/javascript' src='x3dom/x3dom.js'></script>");

        ps.println("</p>");
        ps.println("</body></html>");
    } finally {
        bos.flush();
        bos.close();
        fos.close();
    }

    Desktop.getDesktop().browse(f.toURI());
}

From source file:org.docx4j.openpackaging.io3.stores.ZipPartStore.java

private byte[] getBytesFromInputStream(InputStream is) throws Exception {

    BufferedInputStream bufIn = new BufferedInputStream(is);
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    BufferedOutputStream bos = new BufferedOutputStream(baos);
    int c = bufIn.read();
    while (c != -1) {
        bos.write(c);//from w  ww  . j av  a 2s  .  com
        c = bufIn.read();
    }
    bos.flush();
    baos.flush();
    //bufIn.close(); //don't do that, since it closes the ZipInputStream after we've read an entry!
    bos.close();
    return baos.toByteArray();
}

From source file:net.sf.sveditor.core.tests.utils.BundleUtils.java

public void unpackBundleTarToFS(String bundle_path, File fs_path) {
    URL url = fBundle.getEntry(bundle_path);
    TestCase.assertNotNull(url);// ww w. j a va2s. c om

    if (!fs_path.isDirectory()) {
        TestCase.assertTrue(fs_path.mkdirs());
    }
    InputStream in = null;
    TarArchiveInputStream tar_stream = null;

    try {
        in = url.openStream();
    } catch (IOException e) {
        TestCase.fail("Failed to open data file " + bundle_path + " : " + e.getMessage());
    }

    tar_stream = new TarArchiveInputStream(in);

    try {
        byte tmp[] = new byte[4 * 1024];
        int cnt;

        ArchiveEntry te;

        while ((te = tar_stream.getNextEntry()) != null) {
            // System.out.println("Entry: \"" + ze.getName() + "\"");
            File entry_f = new File(fs_path, te.getName());
            if (te.getName().endsWith("/")) {
                // Directory
                continue;
            }
            if (!entry_f.getParentFile().exists()) {
                TestCase.assertTrue(entry_f.getParentFile().mkdirs());
            }
            FileOutputStream fos = new FileOutputStream(entry_f);
            BufferedOutputStream bos = new BufferedOutputStream(fos, tmp.length);

            while ((cnt = tar_stream.read(tmp, 0, tmp.length)) > 0) {
                bos.write(tmp, 0, cnt);
            }
            bos.flush();
            bos.close();
            fos.close();

            //            tar_stream.closeEntry();
        }
        tar_stream.close();
    } catch (IOException e) {
        e.printStackTrace();
        TestCase.fail("Failed to unpack tar file: " + e.getMessage());
    }
}