Example usage for java.io BufferedOutputStream write

Introduction

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

Prototype

@Override
public synchronized void write(byte b[], int off, int len) throws IOException 

Source Link

Document

Writes len bytes from the specified byte array starting at offset off to this buffered output stream.

Usage

From source file:examples.utils.CifarReader.java

public static void downloadAndExtract() {

    if (new File("data", TEST_DATA_FILE).exists() == false) {
        try {/*ww w .  j av  a  2 s .com*/
            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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From source file:Main.java

public static void copyFile(File sourceFile, File targetFile) throws IOException {
    BufferedInputStream inBuff = null;
    BufferedOutputStream outBuff = null;
    try {//from ww w.  ja  va 2 s . c om
        inBuff = new BufferedInputStream(new FileInputStream(sourceFile));
        outBuff = new BufferedOutputStream(new FileOutputStream(targetFile));
        byte[] buffer = new byte[BUFFER];
        int length;
        while ((length = inBuff.read(buffer)) != -1) {
            outBuff.write(buffer, 0, length);
        }
        outBuff.flush();
    } finally {
        if (inBuff != null) {
            inBuff.close();
        }
        if (outBuff != null) {
            outBuff.close();
        }
    }
}

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From source file:com.worldline.easycukes.commons.helpers.FileHelper.java

/**
 * Extracts a specific file from a zip folder
 *
 * @param zip      a {@link ZipInputStream} corresponding to the zip folder to be
 *                 extracted/*ww  w  . ja v a  2 s .c om*/
 * @param filePath the path of the file to be extracted from the zip folder
 * @throws IOException if anything's going wrong while extracting the content of the
 *                     zip
 */
private static void extractFile(@NonNull ZipInputStream zip, @NonNull String filePath) throws IOException {
    @Cleanup
    final BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(filePath));
    final byte[] bytesIn = new byte[BUFFER_SIZE];
    int read = 0;
    while ((read = zip.read(bytesIn)) != -1)
        bos.write(bytesIn, 0, read);
}

---

From source file:Main.java

/**
 * extracts a zip file to the given dir/*from   ww w.j a  v a2s  . co m*/
 * @param archive
 * @param destDir
 * @throws IOException 
 * @throws ZipException 
 * @throws Exception
 */
public static void extractZipArchive(File archive, File destDir) throws ZipException, IOException {
    if (!destDir.exists()) {
        destDir.mkdir();
    }

    ZipFile zipFile = new ZipFile(archive);
    Enumeration<? extends ZipEntry> entries = zipFile.entries();

    byte[] buffer = new byte[16384];
    int len;
    while (entries.hasMoreElements()) {
        ZipEntry entry = entries.nextElement();

        String entryFileName = entry.getName();

        File dir = buildDirectoryHierarchyFor(entryFileName, destDir);
        if (!dir.exists()) {
            dir.mkdirs();
        }

        if (!entry.isDirectory()) {
            BufferedOutputStream bos = new BufferedOutputStream(
                    new FileOutputStream(new File(destDir, entryFileName)));

            BufferedInputStream bis = new BufferedInputStream(zipFile.getInputStream(entry));

            while ((len = bis.read(buffer)) > 0) {
                bos.write(buffer, 0, len);
            }

            bos.flush();
            bos.close();
            bis.close();
        }
    }
}

---

From source file:com.goldmansachs.kata2go.tools.utils.TarGz.java

public static void decompress(InputStream tarGzInputStream, Path outDir) throws IOException {
    GzipCompressorInputStream gzipStream = new GzipCompressorInputStream(tarGzInputStream);
    TarArchiveInputStream tarInput = new TarArchiveInputStream(gzipStream);
    TarArchiveEntry entry;/*from   ww  w.  j  a  v a 2  s .  c  om*/
    int bufferSize = 1024;
    while ((entry = (TarArchiveEntry) tarInput.getNextEntry()) != null) {
        String entryName = entry.getName();
        // strip out the leading directory like the --strip tar argument
        String entryNameWithoutLeadingDir = entryName.substring(entryName.indexOf("/") + 1);
        if (entryNameWithoutLeadingDir.isEmpty()) {
            continue;
        }
        Path outFile = outDir.resolve(entryNameWithoutLeadingDir);
        if (entry.isDirectory()) {
            outFile.toFile().mkdirs();
            continue;
        }
        int count;
        byte data[] = new byte[bufferSize];
        BufferedOutputStream fios = new BufferedOutputStream(new FileOutputStream(outFile.toFile()),
                bufferSize);
        while ((count = tarInput.read(data, 0, bufferSize)) != -1) {
            fios.write(data, 0, count);
        }
        fios.close();
    }
    tarInput.close();
    gzipStream.close();
}

---

From source file:com.manning.androidhacks.hack037.MediaUtils.java

public static void saveRaw(Context context, int raw, String path) {
    File completePath = new File(Environment.getExternalStorageDirectory(), path);

    try {//from   ww w .j av  a2s  .c  om
        completePath.getParentFile().mkdirs();
        completePath.createNewFile();

        BufferedOutputStream bos = new BufferedOutputStream((new FileOutputStream(completePath)));
        BufferedInputStream bis = new BufferedInputStream(context.getResources().openRawResource(raw));
        byte[] buff = new byte[32 * 1024];
        int len;
        while ((len = bis.read(buff)) > 0) {
            bos.write(buff, 0, len);
        }
        bos.flush();
        bos.close();

    } catch (IOException io) {
        Log.e(TAG, "Error: " + io);
    }
}

---

From source file:Main.java

public static void downLoadFile(final String strUrl, final String fileURL, final int bufferLength) {
    BufferedInputStream in = null;
    BufferedOutputStream out = null;
    try {//from   ww w  .j  av  a 2s  . c  om

        in = new BufferedInputStream(new URL(strUrl).openStream());
        File img = new File(fileURL);
        out = new BufferedOutputStream(new FileOutputStream(img));
        byte[] buf = new byte[bufferLength];
        int count = in.read(buf);
        while (count != -1) {
            out.write(buf, 0, count);
            count = in.read(buf);
        }
        in.close();
        out.close();

    } catch (Exception e) {
        e.printStackTrace();

    }

}

---

From source file:Main.java

public static boolean copyFile(File fromFile, File toFile) {
    BufferedInputStream bis = null;
    BufferedOutputStream fos = null;
    try {// ww w. j  av  a2  s.co m
        FileInputStream is = new FileInputStream(fromFile);
        bis = new BufferedInputStream(is);
        fos = new BufferedOutputStream(new FileOutputStream(toFile));
        byte[] buf = new byte[2048];
        int i;
        while ((i = bis.read(buf)) != -1) {
            fos.write(buf, 0, i);
        }
        fos.flush();
        return true;
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        try {
            if (bis != null) {
                bis.close();
            }
            if (fos != null) {
                fos.close();
            }
        } catch (IOException e1) {
            e1.printStackTrace();
        }
    }
    return false;
}

---

From source file:com.pieframework.runtime.utils.Zipper.java

public static void unzip(String zipFile, String toDir) throws ZipException, IOException {

    int BUFFER = 2048;
    File file = new File(zipFile);

    ZipFile zip = new ZipFile(file);
    String newPath = toDir;//from   www  .  j  a  v a2s.co m

    File toDirectory = new File(newPath);
    if (!toDirectory.exists()) {
        toDirectory.mkdir();
    }
    Enumeration zipFileEntries = zip.entries();

    // Process each entry
    while (zipFileEntries.hasMoreElements()) {
        // grab a zip file entry
        ZipEntry entry = (ZipEntry) zipFileEntries.nextElement();

        String currentEntry = entry.getName();
        File destFile = new File(newPath, FilenameUtils.separatorsToSystem(currentEntry));
        //System.out.println(currentEntry);
        File destinationParent = destFile.getParentFile();

        // create the parent directory structure if needed
        destinationParent.mkdirs();
        if (!entry.isDirectory()) {
            BufferedInputStream is = new BufferedInputStream(zip.getInputStream(entry));
            int currentByte;
            // establish buffer for writing file
            byte data[] = new byte[BUFFER];

            // write the current file to disk
            FileOutputStream fos = new FileOutputStream(destFile);
            BufferedOutputStream dest = new BufferedOutputStream(fos, BUFFER);

            // read and write until last byte is encountered
            while ((currentByte = is.read(data, 0, BUFFER)) != -1) {
                dest.write(data, 0, currentByte);
            }
            dest.flush();
            dest.close();
            is.close();
        }
    }
    zip.close();

}

---

From source file:Main.java

public static boolean copyFile(final File srcFile, final File saveFile) {
    File parentFile = saveFile.getParentFile();
    if (!parentFile.exists()) {
        if (!parentFile.mkdirs())
            return false;
    }/*from   w w  w. j  a va  2s .  c  om*/

    BufferedInputStream inputStream = null;
    BufferedOutputStream outputStream = null;
    try {
        inputStream = new BufferedInputStream(new FileInputStream(srcFile));
        outputStream = new BufferedOutputStream(new FileOutputStream(saveFile));
        byte[] buffer = new byte[1024 * 4];
        int len;
        while ((len = inputStream.read(buffer)) != -1) {
            outputStream.write(buffer, 0, len);
        }
        outputStream.flush();
    } catch (IOException e) {
        e.printStackTrace();
        return false;
    } finally {
        close(inputStream, outputStream);
    }
    return true;
}

---

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