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:com.mgmtp.perfload.perfalyzer.normalization.Normalizer.java

public void normalize(final File file) throws IOException {
    checkState(!file.isAbsolute(), "'file' must be relative");

    String filePath = file.getPath();
    String[] pathElements = split(getPath(filePath), SystemUtils.FILE_SEPARATOR); // strip out dir

    StrBuilder sb = new StrBuilder();
    for (int i = 0; i < pathElements.length; ++i) {
        if (i == 1) {
            continue; // strip out dir, e. g. perfmon-logs, measuring-logs
        }//from ww w.j  av  a  2  s.c o m
        sb.appendSeparator(SystemUtils.FILE_SEPARATOR);
        sb.append(pathElements[i]);
    }
    String dirPath = sb.toString();

    Map<String, FileChannel> channels = newHashMap();
    List<OutputStream> outputStreams = newArrayList();
    FileInputStream fis = null;
    try {
        fis = new FileInputStream(new File(sourceDir, filePath)); //relative to source dir
        for (Scanner scanner = new Scanner(fis.getChannel(), Charsets.UTF_8.name()); scanner.hasNext();) {
            String line = scanner.nextLine();
            if (trimToNull(line) == null || line.startsWith("#")) {
                continue;
            }
            List<ChannelData> channelDataList = normalizingStrategy.normalizeLine(line);
            for (ChannelData channelData : channelDataList) {

                FileChannel channel = channels.get(channelData.getChannelKey());
                if (channel == null) {
                    String baseName = channelData.getChannelBaseName();
                    String key = channelData.getChannelKey();
                    String fileName = new File(dirPath, String.format("[%s][%s].csv", baseName, key)).getPath();
                    File destFile = new File(destDir, fileName);
                    destFile.getParentFile().mkdirs();
                    FileOutputStream fos = new FileOutputStream(destFile);
                    outputStreams.add(fos);
                    channel = fos.getChannel();
                    channels.put(channelData.getChannelKey(), channel);
                }

                writeLineToChannel(channel, channelData.getValue(), Charsets.UTF_8);
            }
        }
    } finally {
        outputStreams.forEach(IOUtils::closeQuietly);
        closeQuietly(fis);
    }
}

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From source file:org.itstechupnorth.walrus.base.ArticleBuffer.java

public ArticleBuffer saveTo(File file) throws IOException {
    final FileOutputStream out = new FileOutputStream(file);
    saveTo(out.getChannel()).close();
    out.close();/*www .j  av  a 2 s.  c  o m*/
    return this;
}

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From source file:uk.ac.tgac.rampart.util.DependencyDownloader.java

public void downloadFromUrl(URL url, File localFile) throws IOException {

    System.out.print("Downloading: " + url.toString() + " ... ");

    ReadableByteChannel rbc = Channels.newChannel(url.openStream());
    FileOutputStream fos = new FileOutputStream(localFile);
    fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE);

    if (!localFile.exists()) {
        System.err.println("Could not download: " + url.toString() + "; URL may have changed.");
    }//from  w ww. ja va 2s . c  om

    System.out.println("done.");
}

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From source file:com.googlecode.download.maven.plugin.internal.DownloadCache.java

private void saveIndex() throws Exception {
    if (!this.indexFile.exists()) {
        this.indexFile.createNewFile();
    }/*from  w w w . ja v  a2  s  .c  o m*/
    FileOutputStream out = new FileOutputStream(this.indexFile);
    try (ObjectOutputStream res = new ObjectOutputStream(out)) {
        try (FileLock lock = out.getChannel().lock()) {
            res.writeObject(index);
        }
    }
}

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From source file:com.respam.comniq.models.OMDBParser.java

public void requestOMDB(String movie, String year) {
    String imageURL;/* w ww . ja va 2 s.c  om*/

    // Location for downloading and storing thumbnails
    String path = System.getProperty("user.home") + File.separator + "comniq" + File.separator + "output"
            + File.separator + "thumbnails";
    File userOutDir = new File(path);

    // Create Thumbnails directory if not present
    if (userOutDir.mkdirs()) {
        System.out.println(userOutDir + " was created");
    }

    // Connect to OMDB API and fetch details
    try {
        // Proxy details
        HttpHost proxy = new HttpHost("web-proxy.in.hpecorp.net", 8080, "http");

        //            HttpClient client = HttpClientBuilder.create().build();

        // Start of proxy client
        DefaultProxyRoutePlanner routePlanner = new DefaultProxyRoutePlanner(proxy);
        CloseableHttpClient client = HttpClients.custom().setRoutePlanner(routePlanner).build();
        // End of proxy client

        String uri = "http://www.omdbapi.com/?t=" + URLEncoder.encode(movie) + "&y=" + year;
        uri = uri.replace(" ", "%20");
        HttpGet request = new HttpGet(uri);
        HttpResponse response = client.execute(request);
        String json = EntityUtils.toString(response.getEntity());
        JSONParser parser = new JSONParser();
        JSONObject jsonObject = (JSONObject) parser.parse(json);

        // Excluding Non Movies
        if (null != jsonObject.get("Title")) {
            movieInfo.add(jsonObject);

            // Download the thumbnails if Poster URL present
            if (null != jsonObject.get("Poster")) {
                imageURL = ((String) jsonObject.get("Poster"));
                System.out.println(imageURL);
                URL thumbnail = new URL(imageURL);
                ReadableByteChannel rbc = Channels.newChannel(thumbnail.openStream());
                FileOutputStream fos = new FileOutputStream(
                        path + File.separator + jsonObject.get("Title") + ".jpg");
                fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE);
            }
        }

    } catch (ParseException | IOException | UnsupportedOperationException e) {
        e.printStackTrace();
    }
}

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

public void getIfNotExists() throws Exception {
    if (!lfwDir.exists()) {
        lfwDir.mkdir();//from  w  w  w. j  a  va  2s .  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:org.deegree.maven.PortnumberMojo.java

@Override
public void execute() throws MojoExecutionException, MojoFailureException {
    PrintStream out = null;/*ww  w  .  j  a va  2  s  . c o  m*/
    BufferedReader reader = null;
    FileLock lock = null;
    FileInputStream fis = null;
    try {
        File portfile = new File(System.getProperty("java.io.tmpdir") + "/portnumbers");
        int port = 1025;
        if (portfile.exists()) {
            fis = new FileInputStream(portfile);
            reader = new BufferedReader(new InputStreamReader(fis, "UTF-8"));

            boolean read = false;
            while (!read) {
                try {
                    port = Integer.parseInt(reader.readLine()) + 1;
                    read = true;
                } catch (NumberFormatException e) {
                    // someone is currently writing
                    try {
                        Thread.sleep(100);
                    } catch (InterruptedException e1) {
                        return;
                    } finally {
                        closeQuietly(out);
                        closeQuietly(reader);
                        closeQuietly(fis);
                    }
                }
            }
            reader.close();
        }
        if (port > 18000) {
            port = 1025;
        }

        getLog().info("Using portnumber " + port + " for this run.");

        project.getProperties().put("portnumber", "" + port);

        FileOutputStream fos = new FileOutputStream(portfile);
        out = new PrintStream(fos, true, "UTF-8");
        while ((lock = fos.getChannel().tryLock()) == null) {
            try {
                Thread.sleep(100);
            } catch (InterruptedException e) {
                return;
            }
        }
        out.println("" + port);
        lock.release();
        out.close();
    } catch (Throwable e) {
        getLog().error(e);
    } finally {
        closeQuietly(out);
        closeQuietly(reader);
        closeQuietly(fis);
    }
}

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From source file:org.apache.hadoop.hdfs.server.datanode.TestDirectoryScannerInlineFiles.java

private void truncateFile(File f) throws IOException {
    assertTrue(f.exists() && f.length() != 0);
    FileOutputStream s = new FileOutputStream(f);
    FileChannel channel = s.getChannel();
    channel.truncate(0);/* w ww.j  a va 2s . c  o  m*/
    LOG.info("Truncated block file " + f.getAbsolutePath());
    s.close();
}

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From source file:com.geekandroid.sdk.sample.crop.ResultActivity.java

private void copyFileToDownloads(Uri croppedFileUri) throws Exception {
    String downloadsDirectoryPath = Environment
            .getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS).getAbsolutePath();
    String filename = String.format("%d_%s", Calendar.getInstance().getTimeInMillis(),
            croppedFileUri.getLastPathSegment());

    File saveFile = new File(downloadsDirectoryPath, filename);

    FileInputStream inStream = new FileInputStream(new File(croppedFileUri.getPath()));
    FileOutputStream outStream = new FileOutputStream(saveFile);
    FileChannel inChannel = inStream.getChannel();
    FileChannel outChannel = outStream.getChannel();
    inChannel.transferTo(0, inChannel.size(), outChannel);
    inStream.close();//  w  ww  .  j  a v a  2  s.com
    outStream.close();

    showNotification(saveFile);
}

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From source file:com.l2jfree.loginserver.L2LoginIdentifier.java

private synchronized void load() {
    if (isLoaded())
        return;/*from   www  .ja  va2s.  c  o  m*/

    File f = new File(System.getProperty("user.home", null), FILENAME);
    ByteBuffer bb = ByteBuffer.allocateDirect(8);

    if (!f.exists() || f.length() != 8) {
        _uid = getRandomUID();
        _loaded = true;
        _log.info("A new UID has been generated for this login server.");

        FileOutputStream fos = null;
        try {
            f.createNewFile();
            fos = new FileOutputStream(f);
            FileChannel fc = fos.getChannel();
            bb.putLong(getUID());
            bb.flip();
            fc.write(bb);
            fos.flush();
        } catch (IOException e) {
            _log.warn("Could not store login server's UID!", e);
        } finally {
            IOUtils.closeQuietly(fos);
            f.setReadOnly();
        }
    } else {
        FileInputStream fis = null;
        try {
            fis = new FileInputStream(f);
            FileChannel fc = fis.getChannel();
            fc.read(bb);
        } catch (IOException e) {
            _log.warn("Could not read stored login server's UID!", e);
        } finally {
            IOUtils.closeQuietly(fis);
        }

        if (bb.position() > 0) {
            bb.flip();
            _uid = bb.getLong();
        } else
            _uid = getRandomUID();
        _loaded = true;
    }
}

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