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:Main.java

public static 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();// w w w . ja v  a 2s. c o m
    outStream.flush();
    outStream.close();
}

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From source file:Main.java

public static boolean fileCopy(File srcFile, File dstFile) {
    int length = 1048891;
    FileChannel inC = null;//w  w w  . jav a2 s  .c o m
    FileChannel outC = null;
    try {
        FileInputStream in = new FileInputStream(srcFile);
        FileOutputStream out = new FileOutputStream(dstFile);
        inC = in.getChannel();
        outC = out.getChannel();
        ByteBuffer b = null;
        while (inC.position() < inC.size()) {
            if ((inC.size() - inC.position()) < length) {
                length = (int) (inC.size() - inC.position());
            } else {
                length = 1048891;
            }
            b = ByteBuffer.allocateDirect(length);
            inC.read(b);
            b.flip();
            outC.write(b);
            outC.force(false);
        }

        return true;
    } catch (IOException e) {
        e.printStackTrace();
        return false;
    } finally {
        try {
            if (inC != null && inC.isOpen()) {
                inC.close();
            }
            if (outC != null && outC.isOpen()) {
                outC.close();
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

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From source file:Main.java

/**
 * Copies the contents of one file to the other using {@link FileChannel}s.
 * /*from   w  w  w . j  ava  2s.c o m*/
 * @param src
 *            source {@link File}
 * @param dst
 *            destination {@link File}
 */
public static void copyFile(File src, File dst) throws IOException {
    FileInputStream in = new FileInputStream(src);
    FileOutputStream out = new FileOutputStream(dst);
    FileChannel inChannel = in.getChannel();
    FileChannel outChannel = out.getChannel();

    try {
        inChannel.transferTo(0, inChannel.size(), outChannel);
    } finally {
        if (inChannel != null) {
            inChannel.close();
        }
        if (outChannel != null) {
            outChannel.close();
        }
    }

    in.close();
    out.close();
}

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From source file:z.tool.util.FileUtil.java

/**
 * ?// www  . jav a 2s  .co  m
 */
public static void copy(FileInputStream fis, FileOutputStream fos) throws IOException {
    FileChannel channel = fis.getChannel();
    channel.transferTo(0, channel.size(), fos.getChannel());
}

---

From source file:edu.ucla.cs.scai.swim.qa.ontology.dbpedia.tipicality.DbpediaCsvDownload.java

private static void download(Element e) throws MalformedURLException, IOException {
    for (Element c : e.children()) {
        String tagName = c.tag().getName();
        if (tagName.equals("small")) {
            for (Element c1 : c.children()) {
                if (c1.tag().getName().equals("a") && c1.text().equalsIgnoreCase("csv")) {
                    String href = c1.attr("href");
                    System.out.println("Downloading " + href);
                    try {
                        URL remoteFile = new URL(href);
                        ReadableByteChannel rbc = Channels.newChannel(remoteFile.openStream());
                        String[] s = href.split("\\/");
                        FileOutputStream fos = new FileOutputStream(
                                DBpediaOntology.DBPEDIA_CSV_FOLDER + s[s.length - 1]);
                        fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE);
                    } catch (Exception ex) {
                        ex.printStackTrace();
                    }//from  w w  w .j  a  v  a 2s  .  c  om
                }
            }
        } else if (tagName.equals("ul")) {
            for (Element c1 : c.children()) {
                if (c1.tagName().equals("li")) {
                    download(c1);
                }
            }
        }
    }
}

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From source file:Main.java

/** Copia un fichero.
 * @param source Fichero origen con el contenido que queremos copiar.
 * @param dest Fichero destino de los datos.
 * @throws IOException SI ocurre algun problema durante la copia */
public static void copyFile(final File source, final File dest) throws IOException {
    if (source == null || dest == null) {
        throw new IllegalArgumentException("Ni origen ni destino de la copia pueden ser nulos"); //$NON-NLS-1$
    }/* w  ww  . j ava  2s . c om*/

    final FileInputStream is = new FileInputStream(source);
    final FileOutputStream os = new FileOutputStream(dest);
    final FileChannel in = is.getChannel();
    final FileChannel out = os.getChannel();
    final MappedByteBuffer buf = in.map(FileChannel.MapMode.READ_ONLY, 0, in.size());
    out.write(buf);

    in.close();
    out.close();
    is.close();
    os.close();

}

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From source file:Main.java

private static void copyFile(File src, File dst) throws IOException {
    FileInputStream in = new FileInputStream(src);
    FileOutputStream out = new FileOutputStream(dst);
    FileChannel fromChannel = null, toChannel = null;
    try {//from  w  ww .  j  a v  a2  s. c  om
        fromChannel = in.getChannel();
        toChannel = out.getChannel();
        fromChannel.transferTo(0, fromChannel.size(), toChannel);
    } finally {
        if (fromChannel != null)
            fromChannel.close();
        if (toChannel != null)
            toChannel.close();
    }
}

---

From source file:com.bellman.bible.service.common.FileManager.java

public static boolean copyFile(File fromFile, File toFile) {
    boolean ok = false;
    try {//from   w  ww . j av  a  2  s.  c  om
        // don't worry if tofile exists, allow overwrite
        if (fromFile.exists()) {
            //ensure the target dir exists or FileNotFoundException is thrown creating dst FileChannel
            File toDir = toFile.getParentFile();
            toDir.mkdir();

            long fromFileSize = fromFile.length();
            log.debug("Source file length:" + fromFileSize);
            if (fromFileSize > CommonUtils.getFreeSpace(toDir.getPath())) {
                // not enough room on SDcard
                ok = false;
            } else {
                // move the file
                FileInputStream srcStream = new FileInputStream(fromFile);
                FileChannel src = srcStream.getChannel();
                FileOutputStream dstStream = new FileOutputStream(toFile);
                FileChannel dst = dstStream.getChannel();
                try {
                    dst.transferFrom(src, 0, src.size());
                    ok = true;
                } finally {
                    src.close();
                    dst.close();
                    srcStream.close();
                    dstStream.close();
                }
            }
        } else {
            // fromfile does not exist
            ok = false;
        }
    } catch (Exception e) {
        log.error("Error moving file to sd card", e);
    }
    return ok;
}

---

From source file:Main.java

public static boolean copyFile(File sourceFile, File destFile) throws IOException {
    if (!destFile.exists()) {
        destFile.createNewFile();/*from   w ww.  j  a va 2  s  .c o m*/
    }
    FileInputStream source = null;
    FileOutputStream destination = null;
    try {
        source = new FileInputStream(sourceFile);
        destination = new FileOutputStream(destFile);
        destination.getChannel().transferFrom(source.getChannel(), 0, source.getChannel().size());
    } catch (Exception e) {
        //            FileLog.e("tmessages", e);
        return false;
    } finally {
        if (source != null) {
            source.close();
        }
        if (destination != null) {
            destination.close();
        }
    }
    return true;
}

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From source file:examples.utils.CifarReader.java

public static void downloadAndExtract() {

    if (new File("data", TEST_DATA_FILE).exists() == false) {
        try {//w ww .  jav  a 2  s . c  o  m
            if (new File("data", ARCHIVE_BINARY_FILE).exists() == false) {
                URL website = new URL("http://www.cs.toronto.edu/~kriz/" + ARCHIVE_BINARY_FILE);
                FileOutputStream fos = new FileOutputStream("data/" + ARCHIVE_BINARY_FILE);
                fos.getChannel().transferFrom(Channels.newChannel(website.openStream()), 0, Long.MAX_VALUE);
                fos.close();
            }
            TarArchiveInputStream tar = new TarArchiveInputStream(
                    new GZIPInputStream(new FileInputStream("data/" + ARCHIVE_BINARY_FILE)));
            TarArchiveEntry entry = null;
            while ((entry = tar.getNextTarEntry()) != null) {
                if (entry.isDirectory()) {
                    new File("data", entry.getName()).mkdirs();
                } else {
                    byte data[] = new byte[2048];
                    int count;
                    BufferedOutputStream bos = new BufferedOutputStream(
                            new FileOutputStream(new File("data/", entry.getName())), 2048);

                    while ((count = tar.read(data, 0, 2048)) != -1) {
                        bos.write(data, 0, count);
                    }
                    bos.close();
                }
            }
            tar.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

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