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:eu.scape_project.arc2warc.utils.ArcUtils.java

/**
 * Read the ARC record content into a byte array. Note that the record
 * content can be only read once, it is "consumed" afterwards.
 *
 * @param arcRecord ARC record./*from   w w  w.  java 2s. c o m*/
 * @return Content byte array.
 * @throws IOException If content is too large to be stored in a byte array.
 */
public static byte[] arcRecordPayloadToByteArray(ARCRecord arcRecord) throws IOException {
    // Byte point where the content of the ARC record begins
    int contentBegin = (int) arcRecord.getMetaData().getContentBegin();
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    BufferedInputStream buffis = new BufferedInputStream(arcRecord);
    BufferedOutputStream buffos = new BufferedOutputStream(baos);
    byte[] tempBuffer = new byte[BUFFER_SIZE];
    int bytesRead;
    // skip header content
    buffis.skip(contentBegin);
    while ((bytesRead = buffis.read(tempBuffer)) != -1) {
        buffos.write(tempBuffer, 0, bytesRead);
    }
    buffis.close();
    buffos.flush();
    buffos.close();
    return baos.toByteArray();
}

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From source file:Main.java

public static void copyFile(File oldLocation, File newLocation) throws IOException {
    if (oldLocation.exists()) {
        BufferedInputStream reader = new BufferedInputStream(new FileInputStream(oldLocation));
        BufferedOutputStream writer = new BufferedOutputStream(new FileOutputStream(newLocation, false));
        try {// w w w .java  2  s.  com
            byte[] buff = new byte[8192];
            int numChars;
            while ((numChars = reader.read(buff, 0, buff.length)) != -1) {
                writer.write(buff, 0, numChars);
            }
        } catch (IOException ex) {
            throw new IOException(
                    "IOException when transferring " + oldLocation.getPath() + " to " + newLocation.getPath());
        } finally {
            try {
                if (reader != null) {
                    writer.close();
                    reader.close();
                }
            } catch (IOException ex) {
                Log.e(TAG, "Error closing files when transferring " + oldLocation.getPath() + " to "
                        + newLocation.getPath());
            }
        }
    } else {
        throw new IOException("Old location does not exist when transferring " + oldLocation.getPath() + " to "
                + newLocation.getPath());
    }
}

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From source file:Main.java

public static void copyFile(File in, File out) throws IOException {
    // avoids copying a file to itself
    if (in.equals(out)) {
        return;/*from   w w w.  ja  v a 2  s  .  c  o  m*/
    }
    // ensure the output file location exists
    out.getCanonicalFile().getParentFile().mkdirs();

    BufferedInputStream fis = new BufferedInputStream(new FileInputStream(in));
    BufferedOutputStream fos = new BufferedOutputStream(new FileOutputStream(out));

    // a temporary buffer to read into
    byte[] tmpBuffer = new byte[8192];
    int len = 0;
    while ((len = fis.read(tmpBuffer)) != -1) {
        // add the temp data to the output
        fos.write(tmpBuffer, 0, len);
    }
    // close the input stream
    fis.close();
    // close the output stream
    fos.flush();
    fos.close();
}

---

From source file:de.lazyzero.kkMulticopterFlashTool.utils.Zip.java

public static void unzip2folder(File zipFile, File toFolder) throws FileExistsException {
    if (!toFolder.exists()) {
        toFolder.mkdirs();/*w w w. j  a  v a 2  s  .c  om*/
    } else if (toFolder.isFile()) {
        throw new FileExistsException(toFolder.getName());
    }

    try {
        ZipEntry entry;
        @SuppressWarnings("resource")
        ZipFile zipfile = new ZipFile(zipFile);
        Enumeration<? extends ZipEntry> e = zipfile.entries();
        while (e.hasMoreElements()) {
            entry = e.nextElement();

            //            String newDir;
            //            if (entry.getName().indexOf("/") == -1) {
            //               newDir = zipFile.getName().substring(0, zipFile.getName().indexOf("."));
            //            } else {
            //               newDir = entry.getName().substring(0, entry.getName().indexOf("/"));
            //            }
            //            String folder = toFolder + (File.separatorChar+"") + newDir;
            //            System.out.println(folder);
            //            if ((new File(folder).mkdir())) {
            //               System.out.println("Done.");
            //            }
            System.out.println("Extracting: " + entry);
            if (entry.isDirectory()) {
                new File(toFolder + (File.separatorChar + "") + entry.getName()).mkdir();
            } else {
                BufferedInputStream is = new BufferedInputStream(zipfile.getInputStream(entry));
                int count;
                byte data[] = new byte[2048];
                String fileName = toFolder + (File.separatorChar + "") + entry.getName();
                FileOutputStream fos = new FileOutputStream(fileName);
                BufferedOutputStream dest = new BufferedOutputStream(fos, 2048);
                while ((count = is.read(data, 0, 2048)) != -1) {
                    dest.write(data, 0, count);
                }
                dest.flush();
                dest.close();
                is.close();
                System.out.println("extracted to: " + fileName);
            }

        }
    } catch (ZipException e1) {
        zipFile.delete();
        e1.printStackTrace();
    } catch (IOException e1) {
        // TODO Auto-generated catch block
        e1.printStackTrace();
    } finally {

    }

}

---

From source file:Main.java

public static void unzip(URL _url, URL _dest, boolean _remove_top) {
    int BUFFER_SZ = 2048;
    File file = new File(_url.getPath());

    String dest = _dest.getPath();
    new File(dest).mkdir();

    try {//  w w  w  . j a va 2 s  .  com
        ZipFile zip = new ZipFile(file);
        Enumeration<? extends ZipEntry> zipFileEntries = zip.entries();

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

            if (_remove_top)
                currentEntry = currentEntry.substring(currentEntry.indexOf('/'), currentEntry.length());

            File destFile = new File(dest, currentEntry);
            //destFile = new File(newPath, destFile.getName());
            File destinationParent = destFile.getParentFile();

            // create the parent directory structure if needed
            destinationParent.mkdirs();

            if (!entry.isDirectory()) {
                BufferedInputStream is;
                is = new BufferedInputStream(zip.getInputStream(entry));
                int currentByte;
                // establish buffer for writing file
                byte data[] = new byte[BUFFER_SZ];

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

                // read and write until last byte is encountered
                while ((currentByte = is.read(data, 0, BUFFER_SZ)) != -1) {
                    dst.write(data, 0, currentByte);
                }
                dst.flush();
                dst.close();
                is.close();
            }
            /*
            if (currentEntry.endsWith(".zip"))
            {
            // found a zip file, try to open
            extractFolder(destFile.getAbsolutePath());
            }*/
        }
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

}

---

From source file:io.crate.testing.Utils.java

static void uncompressTarGZ(File tarFile, File dest) throws IOException {
    TarArchiveInputStream tarIn = new TarArchiveInputStream(
            new GzipCompressorInputStream(new BufferedInputStream(new FileInputStream(tarFile))));

    TarArchiveEntry tarEntry = tarIn.getNextTarEntry();
    // tarIn is a TarArchiveInputStream
    while (tarEntry != null) {
        Path entryPath = Paths.get(tarEntry.getName());

        if (entryPath.getNameCount() == 1) {
            tarEntry = tarIn.getNextTarEntry();
            continue;
        }/*from w w w  .  j a v  a  2  s . co m*/

        Path strippedPath = entryPath.subpath(1, entryPath.getNameCount());
        File destPath = new File(dest, strippedPath.toString());

        if (tarEntry.isDirectory()) {
            destPath.mkdirs();
        } else {
            destPath.createNewFile();
            byte[] btoRead = new byte[1024];
            BufferedOutputStream bout = new BufferedOutputStream(new FileOutputStream(destPath));
            int len;
            while ((len = tarIn.read(btoRead)) != -1) {
                bout.write(btoRead, 0, len);
            }

            bout.close();
            if (destPath.getParent().equals(dest.getPath() + "/bin")) {
                destPath.setExecutable(true);
            }
        }
        tarEntry = tarIn.getNextTarEntry();
    }
    tarIn.close();
}

---

From source file:at.illecker.sentistorm.commons.util.io.IOUtils.java

public static void extractTarGz(InputStream inputTarGzStream, String outDir, boolean logging) {
    try {//from  www  . jav a 2s  .  c om
        GzipCompressorInputStream gzIn = new GzipCompressorInputStream(inputTarGzStream);
        TarArchiveInputStream tarIn = new TarArchiveInputStream(gzIn);

        // read Tar entries
        TarArchiveEntry entry = null;
        while ((entry = (TarArchiveEntry) tarIn.getNextEntry()) != null) {
            if (logging) {
                LOG.info("Extracting: " + outDir + File.separator + entry.getName());
            }
            if (entry.isDirectory()) { // create directory
                File f = new File(outDir + File.separator + entry.getName());
                f.mkdirs();
            } else { // decompress file
                int count;
                byte data[] = new byte[EXTRACT_BUFFER_SIZE];

                FileOutputStream fos = new FileOutputStream(outDir + File.separator + entry.getName());
                BufferedOutputStream dest = new BufferedOutputStream(fos, EXTRACT_BUFFER_SIZE);
                while ((count = tarIn.read(data, 0, EXTRACT_BUFFER_SIZE)) != -1) {
                    dest.write(data, 0, count);
                }
                dest.close();
            }
        }

        // close input stream
        tarIn.close();

    } catch (IOException e) {
        LOG.error("IOException: " + e.getMessage());
    }
}

---

From source file:Main.java

public static boolean unzipFile(InputStream fis, String destDir) {
    final byte[] buffer = new byte[4096];
    ZipInputStream zis = null;/* ww  w.  j  a  v  a  2 s.c  o m*/
    Log.e("Unzip", "destDir = " + destDir);
    try {
        // make sure the directory is existent
        File dstFile = new File(destDir);
        if (!dstFile.exists()) {
            dstFile.mkdirs();
        } else {
            int fileLenght = dstFile.listFiles().length;
            if (fileLenght >= 2) {
                return true;
            }
        }
        zis = new ZipInputStream(fis);
        ZipEntry entry;

        while ((entry = zis.getNextEntry()) != null) {
            String fileName = entry.getName();

            if (entry.isDirectory()) {
                new File(destDir, fileName).mkdirs();

            } else {
                BufferedOutputStream bos = new BufferedOutputStream(
                        new FileOutputStream(new File(destDir, fileName)));
                int lenRead;

                while ((lenRead = zis.read(buffer)) != -1) {
                    bos.write(buffer, 0, lenRead);
                }

                bos.close();
            }

            zis.closeEntry();
        }

        return true;

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

    } finally {
        if (zis != null) {
            try {
                zis.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
    return false;
}

---

From source file:edu.harvard.i2b2.eclipse.plugins.metadataLoader.util.FileUtil.java

public static void unzip(String zipname) throws IOException {

    FileInputStream fis = new FileInputStream(zipname);
    ZipInputStream zis = new ZipInputStream(new BufferedInputStream(fis));
    //??    GZIPInputStream gzis = new GZIPInputStream(new BufferedInputStream(fis));

    // get directory of the zip file
    if (zipname.contains("\\"))
        zipname = zipname.replace("\\", "/");
    //   String zipDirectory = zipname.substring(0, zipname.lastIndexOf("/")+1) ;
    String zipDirectory = zipname.substring(0, zipname.lastIndexOf("."));
    new File(zipDirectory).mkdir();

    RunData.getInstance().setMetadataDirectory(zipDirectory);

    ZipEntry entry;//from w ww.j  a v  a2s  . co  m
    while ((entry = zis.getNextEntry()) != null) {
        System.out.println("Unzipping: " + entry.getName());
        if (entry.getName().contains("metadata")) {
            RunData.getInstance().setMetadataFile(zipDirectory + "/" + entry.getName());
        } else if (entry.getName().contains("schemes")) {
            RunData.getInstance().setSchemesFile(zipDirectory + "/" + entry.getName());
        } else if (entry.getName().contains("access")) {
            RunData.getInstance().setTableAccessFile(zipDirectory + "/" + entry.getName());
        }

        int size;
        byte[] buffer = new byte[2048];

        FileOutputStream fos = new FileOutputStream(zipDirectory + "/" + entry.getName());
        BufferedOutputStream bos = new BufferedOutputStream(fos, buffer.length);

        while ((size = zis.read(buffer, 0, buffer.length)) != -1) {
            bos.write(buffer, 0, size);
        }
        bos.flush();
        bos.close();
    }
    zis.close();
    fis.close();
}

---

From source file:msec.org.TarUtil.java

private static void dearchiveFile(File destFile, TarArchiveInputStream tais) throws Exception {

    BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(destFile));

    int count;/* w w  w  .  j  ava2s  . c  o  m*/
    byte data[] = new byte[BUFFERSZ];
    while ((count = tais.read(data, 0, BUFFERSZ)) != -1) {
        bos.write(data, 0, count);
    }

    bos.close();
}

---

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