Example usage for java.io FileOutputStream getChannel

Introduction

In this page you can find the example usage for java.io FileOutputStream getChannel.

Prototype

public FileChannel getChannel() 

Source Link

Document

Returns the unique java.nio.channels.FileChannel FileChannel object associated with this file output stream.

Usage

From source file:csic.ceab.movelab.beepath.Util.java

/**
 * Saves a byte array to the internal storage directory.
 * /*from  w  w w.j  av a2s.  c  om*/
 * @param context
 *            The application context.
 * @param filename
 *            The file name to use.
 * @param bytes
 *            The byte array to be saved.
 */
public static void saveJSON(Context context, String dir, String fileprefix, String inputString) {
    // String TAG = "Util.saveFile";
    FileOutputStream fos = null;
    FileLock lock = null;

    try {
        byte[] bytes = inputString.getBytes("UTF-8");

        File directory = new File(context.getFilesDir().getAbsolutePath(), dir);

        directory.mkdirs();

        File target = new File(directory, fileprefix + System.currentTimeMillis() + ".txt");
        fos = new FileOutputStream(target);

        lock = fos.getChannel().lock();

        fos.write(bytes);

    } catch (IOException e) {
        // logging exception but doing nothing
        // Log.e(TAG, "Exception " + e);
    } finally {

        if (lock != null) {

            try {
                lock.release();
            } catch (Exception e) {

            }
        }
        if (fos != null) {
            try {
                fos.close();
            } catch (IOException e) {
                // logging exception but doing nothing
                // Log.e(TAG, "Exception " + e);

            }
        }

    }

}

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From source file:uk.codingbadgers.bootstrap.download.EtagDownload.java

public void download() {
    CloseableHttpClient client = HttpClients.createDefault();
    HttpGet assetRequest = new HttpGet(remote);
    assetRequest.setHeader(new BasicHeader("Accept", BootstrapConstants.ASSET_MIME_TYPE));

    if (local.exists()) {
        assetRequest/*from  w  w w.j  a  va  2s  .  co  m*/
                .setHeader(new BasicHeader("If-None-Match", "\"" + ChecksumGenerator.createMD5(local) + "\""));
    }

    try {
        HttpResponse response = client.execute(assetRequest);
        StatusLine status = response.getStatusLine();

        if (status.getStatusCode() == HttpStatus.SC_NOT_MODIFIED) {
            // No need to download, its already latest
            System.out.println("File " + local.getName() + " is up to date with remote, no need to download");
        } else if (status.getStatusCode() == HttpStatus.SC_MOVED_TEMPORARILY
                || status.getStatusCode() == HttpStatus.SC_OK) {
            // Update local version
            System.err.println("Downloading " + local.getName());

            HttpEntity entity = response.getEntity();

            ReadableByteChannel rbc = Channels.newChannel(entity.getContent());
            FileOutputStream fos = new FileOutputStream(local);
            fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE);

            EntityUtils.consume(entity);

            String hash = "\"" + ChecksumGenerator.createMD5(local) + "\"";
            if (!hash.equalsIgnoreCase(response.getFirstHeader("Etag").getValue())) {
                throw new BootstrapException(
                        "Error downloading file (" + local.getName() + ")\n[expected hash: "
                                + response.getFirstHeader("Etag").getValue() + " but got " + hash + "]");
            }

            System.out.println("Downloaded " + local.getName());

        } else {
            throw new BootstrapException("Error getting update from github. Error: " + status.getStatusCode()
                    + status.getReasonPhrase());
        }
    } catch (IOException ex) {
        throw new BootstrapException(ex);
    } finally {
        close(client);
    }
}

---

From source file:uk.codingbadgers.bootstrap.download.Sha1Download.java

@Override
public void download() {
    CloseableHttpClient client = HttpClients.createDefault();
    String hash = null;//from   ww  w .j av  a  2  s  .c om

    // Get sha1 hash from repo
    try {
        HttpGet request = new HttpGet(remote + ".sha1");
        HttpResponse response = client.execute(request);

        StatusLine status = response.getStatusLine();
        if (status.getStatusCode() == HttpStatus.SC_OK) {
            HttpEntity entity = response.getEntity();
            hash = EntityUtils.toString(entity);
            EntityUtils.consume(entity);
        }
    } catch (IOException ex) {
        throw new BootstrapException(ex);
    }

    if (local.exists()) {
        String localHash = ChecksumGenerator.createSha1(local);

        if (hash != null && hash.equalsIgnoreCase(localHash)) {
            System.out.println("File " + local.getName() + " is up to date with remote, no need to download");
            return;
        }
    }

    if (!local.getParentFile().exists()) {
        local.getParentFile().mkdirs();
    }

    // Download library from remote
    try {
        HttpGet request = new HttpGet(remote);
        HttpResponse response = client.execute(request);

        StatusLine status = response.getStatusLine();
        if (status.getStatusCode() == HttpStatus.SC_OK) {
            System.err.println("Downloading " + local.getName());

            HttpEntity entity = response.getEntity();

            ReadableByteChannel rbc = Channels.newChannel(entity.getContent());
            FileOutputStream fos = new FileOutputStream(local);
            fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE);

            EntityUtils.consume(entity);

            String localHash = ChecksumGenerator.createSha1(local);
            if (hash != null && !localHash.equalsIgnoreCase(hash)) {
                throw new BootstrapException("Error downloading file (" + local.getName()
                        + ")\n[expected hash: " + localHash + " but got " + hash + "]");
            }

            System.out.println("Downloaded " + local.getName());

        } else {
            throw new BootstrapException("Error download update for " + local.getName() + ", Error: "
                    + status.getStatusCode() + status.getReasonPhrase());
        }
    } catch (IOException ex) {
        throw new BootstrapException(ex);
    }
}

---

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

private boolean checkLibraries() {
    try {//from   w w  w  .ja  v  a  2  s . c o  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:cd.education.data.collector.android.utilities.EncryptionUtils.java

private static void writeSubmissionManifest(EncryptedFormInformation formInfo, File submissionXml,
        List<File> mediaFiles) throws EncryptionException {

    Document d = new Document();
    d.setStandalone(true);/*from w  w  w.j av  a  2s  . c om*/
    d.setEncoding(UTF_8);
    Element e = d.createElement(XML_ENCRYPTED_TAG_NAMESPACE, DATA);
    e.setPrefix(null, XML_ENCRYPTED_TAG_NAMESPACE);
    e.setAttribute(null, ID, formInfo.formId);
    if (formInfo.formVersion != null) {
        e.setAttribute(null, VERSION, formInfo.formVersion);
    }
    e.setAttribute(null, ENCRYPTED, "yes");
    d.addChild(0, Node.ELEMENT, e);

    int idx = 0;
    Element c;
    c = d.createElement(XML_ENCRYPTED_TAG_NAMESPACE, BASE64_ENCRYPTED_KEY);
    c.addChild(0, Node.TEXT, formInfo.base64RsaEncryptedSymmetricKey);
    e.addChild(idx++, Node.ELEMENT, c);

    c = d.createElement(XML_OPENROSA_NAMESPACE, META);
    c.setPrefix("orx", XML_OPENROSA_NAMESPACE);
    {
        Element instanceTag = d.createElement(XML_OPENROSA_NAMESPACE, INSTANCE_ID);
        instanceTag.addChild(0, Node.TEXT, formInfo.instanceMetadata.instanceId);
        c.addChild(0, Node.ELEMENT, instanceTag);
    }
    e.addChild(idx++, Node.ELEMENT, c);
    e.addChild(idx++, Node.IGNORABLE_WHITESPACE, NEW_LINE);

    if (mediaFiles != null) {
        for (File file : mediaFiles) {
            c = d.createElement(XML_ENCRYPTED_TAG_NAMESPACE, MEDIA);
            Element fileTag = d.createElement(XML_ENCRYPTED_TAG_NAMESPACE, FILE);
            fileTag.addChild(0, Node.TEXT, file.getName() + ".enc");
            c.addChild(0, Node.ELEMENT, fileTag);
            e.addChild(idx++, Node.ELEMENT, c);
            e.addChild(idx++, Node.IGNORABLE_WHITESPACE, NEW_LINE);
        }
    }

    c = d.createElement(XML_ENCRYPTED_TAG_NAMESPACE, ENCRYPTED_XML_FILE);
    c.addChild(0, Node.TEXT, submissionXml.getName() + ".enc");
    e.addChild(idx++, Node.ELEMENT, c);

    c = d.createElement(XML_ENCRYPTED_TAG_NAMESPACE, BASE64_ENCRYPTED_ELEMENT_SIGNATURE);
    c.addChild(0, Node.TEXT, formInfo.getBase64EncryptedElementSignature());
    e.addChild(idx++, Node.ELEMENT, c);

    FileOutputStream fout = null;
    OutputStreamWriter writer = null;
    try {
        fout = new FileOutputStream(submissionXml);
        writer = new OutputStreamWriter(fout, UTF_8);

        KXmlSerializer serializer = new KXmlSerializer();
        serializer.setOutput(writer);
        // setting the response content type emits the xml header.
        // just write the body here...
        d.writeChildren(serializer);
        serializer.flush();
        writer.flush();
        fout.getChannel().force(true);
        writer.close();
    } catch (Exception ex) {
        ex.printStackTrace();
        String msg = "Error writing submission.xml for encrypted submission: "
                + submissionXml.getParentFile().getName();
        Log.e(t, msg);
        throw new EncryptionException(msg, ex);
    } finally {
        IOUtils.closeQuietly(writer);
        IOUtils.closeQuietly(fout);
    }
}

---

From source file:org.apache.nifi.file.FileUtils.java

/**
 * Copies the given source file to the given destination file. The given
 * destination will be overwritten if it already exists.
 *
 * @param source/*w  w  w  . j  a va2s.com*/
 * @param destination
 * @param lockInputFile if true will lock input file during copy; if false
 * will not
 * @param lockOutputFile if true will lock output file during copy; if false
 * will not
 * @param move if true will perform what is effectively a move operation
 * rather than a pure copy. This allows for potentially highly efficient
 * movement of the file but if not possible this will revert to a copy then
 * delete behavior. If false, then the file is copied and the source file is
 * retained. If a true rename/move occurs then no lock is held during that
 * time.
 * @param logger if failures occur, they will be logged to this logger if
 * possible. If this logger is null, an IOException will instead be thrown,
 * indicating the problem.
 * @return long number of bytes copied
 * @throws FileNotFoundException if the source file could not be found
 * @throws IOException
 * @throws SecurityException if a security manager denies the needed file
 * operations
 */
public static long copyFile(final File source, final File destination, final boolean lockInputFile,
        final boolean lockOutputFile, final boolean move, final Logger logger)
        throws FileNotFoundException, IOException {

    FileInputStream fis = null;
    FileOutputStream fos = null;
    FileLock inLock = null;
    FileLock outLock = null;
    long fileSize = 0L;
    if (!source.canRead()) {
        throw new IOException("Must at least have read permission");

    }
    if (move && source.renameTo(destination)) {
        fileSize = destination.length();
    } else {
        try {
            fis = new FileInputStream(source);
            fos = new FileOutputStream(destination);
            final FileChannel in = fis.getChannel();
            final FileChannel out = fos.getChannel();
            if (lockInputFile) {
                inLock = in.tryLock(0, Long.MAX_VALUE, true);
                if (null == inLock) {
                    throw new IOException("Unable to obtain shared file lock for: " + source.getAbsolutePath());
                }
            }
            if (lockOutputFile) {
                outLock = out.tryLock(0, Long.MAX_VALUE, false);
                if (null == outLock) {
                    throw new IOException(
                            "Unable to obtain exclusive file lock for: " + destination.getAbsolutePath());
                }
            }
            long bytesWritten = 0;
            do {
                bytesWritten += out.transferFrom(in, bytesWritten, TRANSFER_CHUNK_SIZE_BYTES);
                fileSize = in.size();
            } while (bytesWritten < fileSize);
            out.force(false);
            FileUtils.closeQuietly(fos);
            FileUtils.closeQuietly(fis);
            fos = null;
            fis = null;
            if (move && !FileUtils.deleteFile(source, null, 5)) {
                if (logger == null) {
                    FileUtils.deleteFile(destination, null, 5);
                    throw new IOException("Could not remove file " + source.getAbsolutePath());
                } else {
                    logger.warn(
                            "Configured to delete source file when renaming/move not successful.  However, unable to delete file at: "
                                    + source.getAbsolutePath());
                }
            }
        } finally {
            FileUtils.releaseQuietly(inLock);
            FileUtils.releaseQuietly(outLock);
            FileUtils.closeQuietly(fos);
            FileUtils.closeQuietly(fis);
        }
    }
    return fileSize;
}

---

From source file:com.almunt.jgcaap.systemupdater.DownloadService.java

public void copy(File src, File dst) throws IOException {
    FileInputStream inStream = new FileInputStream(src);
    FileOutputStream outStream = new FileOutputStream(dst);
    FileChannel inChannel = inStream.getChannel();
    FileChannel outChannel = outStream.getChannel();
    inChannel.transferTo(0, inChannel.size(), outChannel);
    inStream.close();/* ww  w  .j  av  a  2 s.  com*/
    outStream.close();
}

---

From source file:de.Keyle.MyPet.util.Updater.java

public void download() {
    String url = "https://mypet-plugin.de/download/" + plugin + "/";
    if (MyPetVersion.isDevBuild()) {
        url += "dev";
    } else {//from  w  w w  . ja v  a2s . c om
        url += "release";
    }
    File pluginFile;
    if (Configuration.Update.REPLACE_OLD) {
        pluginFile = new File(MyPetApi.getPlugin().getFile().getParentFile().getAbsolutePath(),
                "update/" + MyPetApi.getPlugin().getFile().getName());
    } else {
        pluginFile = new File(MyPetApi.getPlugin().getFile().getParentFile().getAbsolutePath(),
                "update/MyPet-" + latest.getVersion() + ".jar");
    }

    String finalUrl = url;
    thread = new Thread(() -> {
        try {
            MyPetApi.getLogger().info(ChatColor.RED + "Start update download: " + ChatColor.RESET + latest);
            URL website = new URL(finalUrl);
            ReadableByteChannel rbc = Channels.newChannel(website.openStream());
            FileOutputStream fos = new FileOutputStream(pluginFile);
            fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE);
            fos.close();
            rbc.close();
            String message = "Finished update download.";
            if (Configuration.Update.REPLACE_OLD || MyPetApi.getPlugin().getFile().getName()
                    .equals("MyPet-" + latest.getVersion() + ".jar")) {
                message += " The update will be loaded on the next server start.";
            } else {
                message += " The file was stored in the \"update\" folder.";
            }
            MyPetApi.getLogger().info(message);
        } catch (IOException e) {
            e.printStackTrace();
        }
    });
    thread.start();
}

---

From source file:updater.UpdaterGUI.java

@SuppressWarnings("resource")
public UpdaterGUI() {
    try {//from   w w w  .ja  v a2  s  . com
        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:com.commonsware.android.qrck.SyncService.java

@SuppressWarnings("unchecked")
@Override//  w  w  w  .ja v  a 2  s. c om
protected void onHandleIntent(Intent intent) {
    ArrayList<String> visited = new ArrayList<String>();

    if (network.isNetworkAvailable()) {
        inProgress.set(true);
        broadcastStatus();

        try {
            URL jsonUrl = new URL(SYNC_URL);
            ReadableByteChannel rbc = Channels.newChannel(jsonUrl.openStream());
            FileOutputStream fos = openFileOutput(SYNC_LOCAL_FILE, 0);

            fos.getChannel().transferFrom(rbc, 0, 1 << 16);

            JSONObject json = AppUtils.load(this, SYNC_LOCAL_FILE);

            for (Iterator<String> i = json.keys(); i.hasNext();) {
                String title = i.next();
                String url = json.getString(title);
                Entry entry = new Entry(title, url);
                String filename = entry.getFilename();
                File imageFile = new File(getFilesDir(), filename);

                if (!imageFile.exists()) {
                    visited.add(filename);

                    URL imageUrl = new URL(jsonUrl, entry.getUrl());

                    rbc = Channels.newChannel(imageUrl.openStream());
                    fos = new FileOutputStream(imageFile);
                    fos.getChannel().transferFrom(rbc, 0, 1 << 16);
                }
            }

            String[] children = getFilesDir().list();

            if (children != null) {
                for (int i = 0; i < children.length; i++) {
                    String filename = children[i];

                    if (!SYNC_LOCAL_FILE.equals(filename) && !visited.contains(filename)) {
                        new File(getFilesDir(), filename).delete();
                    }
                }
            }
        } catch (Exception ex) {
            // TODO: let the UI know about this via broadcast
            Log.e(TAG, "Exception syncing", ex);
            AppUtils.cleanup(this);
        } finally {
            inProgress.set(false);
            broadcastStatus();
            syncCompleted();
        }
    }
}

---

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