Example usage for java.nio.channels Channels newChannel

List of usage examples for java.nio.channels Channels newChannel

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Introduction

In this page you can find the example usage for java.nio.channels Channels newChannel.

Prototype

public static WritableByteChannel newChannel(OutputStream out)

Source Link

Document

Constructs a channel that writes bytes to the given stream.

Usage

From source file:org.alfresco.repo.content.cloudstore.S3ContentWriter.java

@Override
protected WritableByteChannel getDirectWritableChannel() throws ContentIOException {
    try {//  w  w w. ja v  a2s. c om
        logger.debug("S3ContentWriter Creating Temp File: uuid=" + uuid);
        tempFile = TempFileProvider.createTempFile(uuid, ".bin");
        OutputStream os = new FileOutputStream(tempFile);
        logger.debug("S3ContentWriter Returning Channel to Temp File: uuid=" + uuid);
        return Channels.newChannel(os);
    } catch (Throwable e) {
        throw new ContentIOException(
                "S3ContentWriter.getDirectWritableChannel(): Failed to open channel. " + this, e);
    }
}

From source file:net.zyuiop.fastsurvival.FastSurvival.java

private boolean checkLibraries() {
    try {//from  w  ww.  j  a  v  a2s .co m
        Class clazz = Class.forName("org.apache.commons.lang3.StringUtils");
    } catch (ClassNotFoundException e) {
        Bukkit.getLogger().info("Missing libraries, downloading them.");
        try {
            URL url = new URL("http://static.zyuiop.net/libs.jar");
            ReadableByteChannel rbc = Channels.newChannel(url.openStream());
            File output = new File(getFile().getParentFile(), "libs.jar");
            FileOutputStream fos = new FileOutputStream(output);
            fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE);

            Bukkit.getLogger().info("Downloaded, loading...");
            getPluginLoader().enablePlugin(getPluginLoader().loadPlugin(output));
            Bukkit.getLogger().info("Done !");
        } catch (InvalidPluginException | IOException e1) {
            Bukkit.getLogger().severe("Libraries download failed. Stopping.");
            e1.printStackTrace();
            return false;
        }
    }
    return true;
}

From source file:com.bennavetta.appsite.webapi.ContentController.java

@RequestMapping(value = "/upload/**", method = RequestMethod.POST)
@ResponseStatus(HttpStatus.CREATED)/*  www  .  j ava2 s  . c  o  m*/
public void uploadFile(HttpServletRequest request) throws IOException {
    MediaType type = MediaType.parse(request.getContentType());
    String path = extractPathFromPattern(request);
    log.trace("Uploading resource {} with type {}", path, type);

    Resource old = Resource.get(path);
    if (old != null) {
        log.trace("Deleting prior resource: {}", old);
        old.delete();
    }

    try (InputStream in = request.getInputStream()) {
        ReadableByteChannel channel = Channels.newChannel(in);
        resources.create(path, type, channel);
    }
}

From source file:updater.UpdaterGUI.java

@SuppressWarnings("resource")
public UpdaterGUI() {
    try {//from   w w w  .j a va  2  s  .  c o m
        URL url1 = new URL(
                "https://raw.githubusercontent.com/kvsjxd/Droid-PC-Suite/master/.release-version.txt");
        ReadableByteChannel obj1 = Channels.newChannel(url1.openStream());
        FileOutputStream outputstream1 = new FileOutputStream(".release-version.txt");
        outputstream1.getChannel().transferFrom(obj1, 0, Long.MAX_VALUE);
        URL url2 = new URL(
                "https://raw.githubusercontent.com/kvsjxd/Droid-PC-Suite/master/.release-changelog.txt");
        ReadableByteChannel obj2 = Channels.newChannel(url2.openStream());
        FileOutputStream outputstream2 = new FileOutputStream(".release-changelog.txt");
        outputstream2.getChannel().transferFrom(obj2, 0, Long.MAX_VALUE);
        FileReader file = new FileReader(".release-version.txt");
        BufferedReader reader = new BufferedReader(file);
        String DownloadedString = reader.readLine();
        File file2 = new File(".release-version.txt");
        if (file2.exists() && !file2.isDirectory()) {
            file2.delete();
        }
        AvailableUpdate = Double.parseDouble(DownloadedString);
        InputStreamReader reader2 = new InputStreamReader(
                getClass().getResourceAsStream("/others/app-version.txt"));
        String tmp = IOUtils.toString(reader2);
        ApplicationVersion = Double.parseDouble(tmp);
    } catch (Exception e) {
        e.printStackTrace();
    }
    setIconImage(Toolkit.getDefaultToolkit().getImage(UpdaterGUI.class.getResource("/graphics/Icon.png")));
    setResizable(false);
    setType(Type.UTILITY);
    setTitle("Updater");
    setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
    setBounds(100, 100, 430, 415);
    contentPane = new JPanel();
    contentPane.setBackground(Color.WHITE);
    contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
    setContentPane(contentPane);
    contentPane.setLayout(null);

    JLabel lblApplicationVersion = new JLabel("App Version: v" + ApplicationVersion);
    lblApplicationVersion.setBounds(12, 12, 222, 15);
    contentPane.add(lblApplicationVersion);

    JLabel lblUpdateVersion = new JLabel("Update Version: v" + AvailableUpdate);
    lblUpdateVersion.setBounds(12, 30, 222, 15);
    contentPane.add(lblUpdateVersion);

    JScrollPane scrollPane = new JScrollPane();
    scrollPane.setBounds(0, 51, 422, 281);
    contentPane.add(scrollPane);

    JTextArea UpdateChangelogViewer = new JTextArea();
    scrollPane.setViewportView(UpdateChangelogViewer);

    JButton btnDownload = new JButton("Download");
    btnDownload.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent arg0) {
            JFrame parentFrame = new JFrame();
            JFileChooser fileChooser = new JFileChooser();
            FileNameExtensionFilter filter = new FileNameExtensionFilter("Zip Files", "zip");
            fileChooser.setFileFilter(filter);
            fileChooser.setDialogTitle("Save as");
            int userSelection = fileChooser.showSaveDialog(parentFrame);
            if (userSelection == JFileChooser.APPROVE_OPTION) {
                File fileToSave = fileChooser.getSelectedFile();
                try {
                    URL url = new URL("https://github.com/kvsjxd/Droid-PC-Suite/releases/download/"
                            + AvailableUpdate + "/DPCS.v" + AvailableUpdate + ".Stable.zip");
                    ReadableByteChannel obj = Channels.newChannel(url.openStream());
                    FileOutputStream outputstream = new FileOutputStream(fileToSave.getAbsolutePath() + ".zip");
                    outputstream.getChannel().transferFrom(obj, 0, Long.MAX_VALUE);
                    JOptionPane.showMessageDialog(null,
                            "Download complete!\nPlease delete this version and extract the downloaded zip\nwhich is saved at "
                                    + fileToSave.getAbsolutePath() + ".zip");
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        }
    });
    btnDownload.setBounds(140, 344, 117, 25);
    contentPane.add(btnDownload);
    try {
        FileReader reader3 = new FileReader(new File(".release-changelog.txt"));
        UpdateChangelogViewer.read(reader3, "");
        File file3 = new File(".release-changelog.txt");
        if (file3.exists() && !file3.isDirectory()) {
            file3.delete();
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
}

From source file:org.canova.image.lfw.LFWLoader.java

public void getIfNotExists() throws Exception {
    if (!lfwDir.exists()) {
        lfwDir.mkdir();//from   ww  w  .  j  a  v a  2 s  .c om
        log.info("Grabbing LFW...");

        URL website = new URL(LFW_URL);
        ReadableByteChannel rbc = Channels.newChannel(website.openStream());
        if (!lfwTarFile.exists())
            lfwTarFile.createNewFile();
        FileOutputStream fos = new FileOutputStream(lfwTarFile);
        fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE);
        fos.flush();
        IOUtils.closeQuietly(fos);
        rbc.close();
        log.info("Downloaded lfw");
        untarFile(baseDir, lfwTarFile);

    }

    File firstImage = null;
    try {
        firstImage = lfwDir.listFiles()[0].listFiles()[0];

    } catch (Exception e) {
        FileUtils.deleteDirectory(lfwDir);
        log.warn("Error opening first image; probably corrupt download...trying again", e);
        getIfNotExists();

    }

    //number of input neurons
    numPixelColumns = ArrayUtil.flatten(loader.fromFile(firstImage)).length;

    //each subdir is a person
    numNames = lfwDir.getAbsoluteFile().listFiles().length;

    @SuppressWarnings("unchecked")
    Collection<File> allImages = FileUtils.listFiles(lfwDir,
            org.apache.commons.io.filefilter.FileFileFilter.FILE,
            org.apache.commons.io.filefilter.DirectoryFileFilter.DIRECTORY);
    for (File f : allImages) {
        images.add(f.getAbsolutePath());
    }
    for (File dir : lfwDir.getAbsoluteFile().listFiles())
        outcomes.add(dir.getAbsolutePath());

}

From source file:edu.umn.cs.spatialHadoop.util.FileUtil.java

/**
 * Copies a part of a file from a remote file system (e.g., HDFS) to a local
 * file. Returns a path to a local temporary file.
 * /*from   w w w . j a va2  s. c  o  m*/
 * @param conf
 * @param split
 * @return
 * @throws IOException
 */
public static String copyFileSplit(Configuration conf, FileSplit split) throws IOException {
    FileSystem fs = split.getPath().getFileSystem(conf);

    // Special case of a local file. Skip copying the file
    if (fs instanceof LocalFileSystem && split.getStart() == 0)
        return split.getPath().toUri().getPath();

    File destFile = File.createTempFile(split.getPath().getName(), "tmp");
    // Special handling for HTTP files for more efficiency
    /*if (fs instanceof HTTPFileSystem && split.getStart() == 0) {
      URL website = split.getPath().toUri().toURL();
      ReadableByteChannel rbc = Channels.newChannel(website.openStream());
      FileOutputStream fos = new FileOutputStream(destFile);
      fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE);
      fos.close();
      return destFile.getAbsolutePath();
    }*/

    // Length of input file. We do not depend on split.length because it is
    // not
    // set by input format for performance reason. Setting it in the input
    // format would cost a lot of time because it runs on the client machine
    // while the record reader runs on slave nodes in parallel
    long length = fs.getFileStatus(split.getPath()).getLen();

    FSDataInputStream in = fs.open(split.getPath());
    in.seek(split.getStart());
    ReadableByteChannel rbc = Channels.newChannel(in);

    // Prepare output file for write
    FileOutputStream out = new FileOutputStream(destFile);

    out.getChannel().transferFrom(rbc, 0, length);

    in.close();
    out.close();
    return destFile.getAbsolutePath();
}

From source file:com.bigfatgun.fixjures.json.JSONSource.java

private JSONSource(final InputStream input) {
    this(Channels.newChannel(input));
}

From source file:siddur.solidtrust.classic.ClassicController.java

@RequestMapping(value = "/upload", method = RequestMethod.POST)
public String handleFormUpload(@RequestParam("file") MultipartFile file, Model model, HttpSession session)
        throws Exception {

    //upload/*from   w w w . j a va 2 s. com*/
    log4j.info("Start uploading file: " + file.getName() + " with size: " + file.getSize());
    File temp = File.createTempFile("data", ".csv");
    log4j.info("Will save to " + temp.getAbsolutePath());

    InputStream in = null;
    FileOutputStream fout = null;

    try {
        fout = new FileOutputStream(temp);
        FileChannel fcout = fout.getChannel();

        in = file.getInputStream();
        ReadableByteChannel cin = Channels.newChannel(in);

        ByteBuffer buf = ByteBuffer.allocate(1024 * 8);
        while (true) {
            buf.clear();

            int r = cin.read(buf);

            if (r == -1) {
                break;
            }

            buf.flip();
            fcout.write(buf);
        }
    } finally {
        if (in != null) {
            in.close();
        }
        if (fout != null) {
            fout.close();
        }
    }
    log4j.info("Uploading complete");

    //fields
    BufferedReader br = null;
    int[] orders;
    try {
        in = new FileInputStream(temp);
        br = new BufferedReader(new InputStreamReader(in));

        //first line for fields
        String firstLine = br.readLine();
        orders = persister.validateTitle(firstLine);

        //persist
        persister.parseAndSave(br, orders, persister);
    } finally {
        if (br != null) {
            br.close();
        }
    }

    return "redirect:upload.html";
}

From source file:org.apache.axis2.transport.nhttp.util.PipeImpl.java

public PipeImpl() throws IOException {
    if (useNative) {
        Pipe pipe = Pipe.open();
        source = pipe.source();/* ww w  .  j a v a  2 s . co  m*/
        sink = pipe.sink();

    } else {
        PipedInputStream pipedIn = new PipedInputStream();
        try {
            pipedOut = new PipedOutputStream(pipedIn);
        } catch (IOException e) {
            e.printStackTrace();
        }

        source = Channels.newChannel(pipedIn);
        sink = Channels.newChannel(pipedOut);
    }
}

From source file:org.apache.cxf.transport.http.asyncclient.CXFHttpAsyncRequestProducer.java

public void produceContent(final ContentEncoder enc, final IOControl ioc) throws IOException {
    if (content != null) {
        if (buffer == null) {
            if (content.getTempFile() == null) {
                buffer = ByteBuffer.wrap(content.getBytes());
            } else {
                fis = content.getInputStream();
                chan = (fis instanceof FileInputStream) ? ((FileInputStream) fis).getChannel()
                        : Channels.newChannel(fis);
                buffer = ByteBuffer.allocate(8 * 1024);
            }//from  ww w . ja  va 2  s  . c o  m
        }
        int i = -1;
        buffer.rewind();
        if (buffer.hasRemaining() && chan != null) {
            i = chan.read(buffer);
            buffer.flip();
        }
        enc.write(buffer);
        if (!buffer.hasRemaining() && i == -1) {
            enc.complete();
        }
    } else {
        buf.produceContent(enc, ioc);
    }
}