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:Main.java

/**
 * Extract a zip resource into real files and directories
 * /*from  w  ww. j a  v  a 2s.c om*/
 * @param in typically given as getResources().openRawResource(R.raw.something)
 * @param directory target directory
 * @param overwrite indicates whether to overwrite existing files
 * @return list of files that were unpacked (if overwrite is false, this list won't include files
 *         that existed before)
 * @throws IOException
 */
public static List<File> extractZipResource(InputStream in, File directory, boolean overwrite)
        throws IOException {
    final int BUFSIZE = 2048;
    byte buffer[] = new byte[BUFSIZE];
    ZipInputStream zin = new ZipInputStream(new BufferedInputStream(in, BUFSIZE));
    List<File> files = new ArrayList<File>();
    ZipEntry entry;
    directory.mkdirs();
    while ((entry = zin.getNextEntry()) != null) {
        File file = new File(directory, entry.getName());
        files.add(file);
        if (overwrite || !file.exists()) {
            if (entry.isDirectory()) {
                file.mkdirs();
            } else {
                file.getParentFile().mkdirs(); // Necessary because some zip files lack directory entries.
                BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(file), BUFSIZE);
                int nRead;
                while ((nRead = zin.read(buffer, 0, BUFSIZE)) > 0) {
                    bos.write(buffer, 0, nRead);
                }
                bos.flush();
                bos.close();
            }
        }
    }
    zin.close();
    return files;
}

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From source file:Main.java

public static void saveISToFile(InputStream is, String fileName) throws IOException {
    File file = new File(fileName);
    file.getParentFile().mkdirs();//from   w w w  . ja  v a  2  s. co  m
    File tempFile = new File(fileName + ".tmp");
    FileOutputStream fos = new FileOutputStream(tempFile);
    BufferedOutputStream bos = new BufferedOutputStream(fos);
    BufferedInputStream bis = new BufferedInputStream(is);
    byte[] barr = new byte[32768];
    int read = 0;
    while ((read = bis.read(barr)) > 0) {
        bos.write(barr, 0, read);
    }
    bis.close();
    bos.flush();
    fos.flush();
    bos.close();
    fos.close();
    file.delete();
    tempFile.renameTo(file);
}

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From source file:io.hightide.TemplateFetcher.java

public static Path extractTemplate(Path tempFile, Path targetDir) throws IOException {
    try (FileInputStream fin = new FileInputStream(tempFile.toFile());
            BufferedInputStream in = new BufferedInputStream(fin);
            GzipCompressorInputStream gzIn = new GzipCompressorInputStream(in);
            TarArchiveInputStream tarIn = new TarArchiveInputStream(gzIn)) {
        TarArchiveEntry entry;//  ww  w .j a v  a  2 s  .  c  o m
        Path rootDir = null;
        while ((entry = (TarArchiveEntry) tarIn.getNextEntry()) != null) {
            System.out.println("Extracting: " + entry.getName());
            if (entry.isDirectory()) {
                if (isNull(rootDir)) {
                    rootDir = targetDir.resolve(entry.getName());
                }
                Files.createDirectory(targetDir.resolve(entry.getName()));
            } else {
                int count;
                byte data[] = new byte[BUFFER];

                FileOutputStream fos = new FileOutputStream(targetDir.resolve(entry.getName()).toFile());
                BufferedOutputStream dest = new BufferedOutputStream(fos, BUFFER);
                while ((count = tarIn.read(data, 0, BUFFER)) != -1) {
                    dest.write(data, 0, count);
                }
                dest.close();
            }
        }

        return rootDir;
    }
}

---

From source file:com.oneops.cms.crypto.CmsCryptoDES.java

/**
 * Generate des key.//from w w w.j a v a 2  s  .c  om
 *
 * @param file the file
 * @throws java.io.IOException Signals that an I/O exception has occurred.
 */
public static void generateDESKey(String file) throws IOException {
    DESedeKeyGenerator kg = new DESedeKeyGenerator();
    KeyGenerationParameters kgp = new KeyGenerationParameters(new SecureRandom(),
            DESedeParameters.DES_EDE_KEY_LENGTH * 8);
    kg.init(kgp);
    byte[] key = kg.generateKey();
    BufferedOutputStream keystream = new BufferedOutputStream(new FileOutputStream(file));
    byte[] keyhex = Hex.encode(key);
    keystream.write(keyhex, 0, keyhex.length);
    keystream.flush();
    keystream.close();
}

---

From source file:Main.java

public static void unzip(String strZipFile) {

    try {/*from  w w w .j  av  a  2s.  com*/
        /*
         * STEP 1 : Create directory with the name of the zip file
         * 
         * For e.g. if we are going to extract c:/demo.zip create c:/demo directory where we can extract all the zip entries
         */
        File fSourceZip = new File(strZipFile);
        String zipPath = strZipFile.substring(0, strZipFile.length() - 4);
        File temp = new File(zipPath);
        temp.mkdir();
        System.out.println(zipPath + " created");

        /*
         * STEP 2 : Extract entries while creating required sub-directories
         */
        ZipFile zipFile = new ZipFile(fSourceZip);
        Enumeration<? extends ZipEntry> e = zipFile.entries();

        while (e.hasMoreElements()) {
            ZipEntry entry = (ZipEntry) e.nextElement();
            File destinationFilePath = new File(zipPath, entry.getName());

            // create directories if required.
            destinationFilePath.getParentFile().mkdirs();

            // if the entry is directory, leave it. Otherwise extract it.
            if (entry.isDirectory()) {
                continue;
            } else {
                // System.out.println("Extracting " + destinationFilePath);

                /*
                 * Get the InputStream for current entry of the zip file using
                 * 
                 * InputStream getInputStream(Entry entry) method.
                 */
                BufferedInputStream bis = new BufferedInputStream(zipFile.getInputStream(entry));

                int b;
                byte buffer[] = new byte[1024];

                /*
                 * read the current entry from the zip file, extract it and write the extracted file.
                 */
                FileOutputStream fos = new FileOutputStream(destinationFilePath);
                BufferedOutputStream bos = new BufferedOutputStream(fos, 1024);

                while ((b = bis.read(buffer, 0, 1024)) != -1) {
                    bos.write(buffer, 0, b);
                }

                // flush the output stream and close it.
                bos.flush();
                bos.close();

                // close the input stream.
                bis.close();
            }

        }
        zipFile.close();
    } catch (IOException ioe) {
        System.out.println("IOError :" + ioe);
    }

}

---

From source file:com.ccoe.build.utils.CompressUtils.java

/**
 * Uncompress a zip to files/*w  w w.  ja  v a 2s  .c  o m*/
 * @param zip
 * @param unzipdir
 * @param isNeedClean
 * @return
 * @throws FileNotFoundException 
 * @throws IOException 
 */
public static List<File> unCompress(File zip, String unzipdir) throws IOException {
    ArrayList<File> unzipfiles = new ArrayList<File>();

    FileInputStream fi = new FileInputStream(zip);
    ZipInputStream zi = new ZipInputStream(new BufferedInputStream(fi));
    try {

        ZipEntry entry;
        while ((entry = zi.getNextEntry()) != null) {
            System.out.println("Extracting: " + entry);
            int count;
            byte data[] = new byte[BUFFER];
            File unzipfile = new File(unzipdir + File.separator + entry.getName());
            FileOutputStream fos = new FileOutputStream(unzipfile);
            BufferedOutputStream dest = new BufferedOutputStream(fos, BUFFER);

            while ((count = zi.read(data, 0, BUFFER)) != -1) {
                dest.write(data, 0, count);
            }
            dest.flush();
            dest.close();

            unzipfiles.add(unzipfile);
        }

    } catch (IOException e) {
        throw e;
    } finally {
        IOUtils.closeQuietly(zi);
    }

    return unzipfiles;
}

---

From source file:com.microsoft.azure.hdinsight.util.HDInsightJobViewUtils.java

private static void extractFile(ZipInputStream zipIn, String filePath) throws IOException {
    BufferedOutputStream bos = new BufferedOutputStream(new java.io.FileOutputStream(filePath));
    byte[] bytesIn = new byte[BUFFER_SIZE];
    int read = 0;
    while ((read = zipIn.read(bytesIn)) != -1) {
        bos.write(bytesIn, 0, read);
    }/*from ww  w. j a  v  a2s . co  m*/
    bos.close();
}

---

From source file:io.vertx.config.vault.utils.VaultDownloader.java

private static void extractFile(ZipInputStream zipIn, String filePath) throws IOException {
    BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(filePath));
    byte[] bytesIn = new byte[4096];
    int read = 0;
    while ((read = zipIn.read(bytesIn)) != -1) {
        bos.write(bytesIn, 0, read);
    }/*  w w  w . jav a2  s . c om*/
    bos.close();
}

---

From source file:Main.java

/**
 *  Move the file in oldLocation to newLocation.
 *//*from  w w w.j a v a2  s . c  o  m*/
public static void moveFile(String tempLocation, String newLocation) throws IOException {
    File oldLocation = new File(tempLocation);
    if (oldLocation != null && oldLocation.exists()) {
        BufferedInputStream reader = new BufferedInputStream(new FileInputStream(oldLocation));
        BufferedOutputStream writer = new BufferedOutputStream(new FileOutputStream(newLocation, false));
        try {
            byte[] buff = new byte[8192];
            int numChars;
            while ((numChars = reader.read(buff, 0, buff.length)) != -1) {
                writer.write(buff, 0, numChars);
            }
        } catch (IOException ex) {
        } finally {
            try {
                if (reader != null) {
                    writer.close();
                    reader.close();
                }
            } catch (IOException ex) {
            }
        }
    } else {
    }
}

---

From source file:Main.java

private static void fileUnZip(ZipInputStream zis, File file) throws FileNotFoundException, IOException {
    java.util.zip.ZipEntry zip = null;
    while ((zip = zis.getNextEntry()) != null) {
        String name = zip.getName();
        File f = new File(file.getAbsolutePath() + File.separator + name);
        if (zip.isDirectory()) {
            f.mkdirs();/*ww w . j  a va2 s . co m*/
        } else {
            f.getParentFile().mkdirs();
            f.createNewFile();
            BufferedOutputStream bos = null;
            try {
                bos = new BufferedOutputStream(new FileOutputStream(f));
                byte b[] = new byte[2048];
                int aa = 0;
                while ((aa = zis.read(b)) != -1) {
                    bos.write(b, 0, aa);
                }
                bos.flush();
            } finally {
                bos.close();
            }
            bos.close();
        }
    }

}

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