Example usage for java.util.zip GZIPOutputStream write

Introduction

In this page you can find the example usage for java.util.zip GZIPOutputStream write.

Prototype

public synchronized void write(byte[] buf, int off, int len) throws IOException

Source Link

Document

Writes array of bytes to the compressed output stream.

Usage

From source file:Main.java

public static final byte[] compress(byte[] bytes) {
    if (bytes == null) {
        throw new NullPointerException("byte[] is NULL !");
    }/*from  w  ww  .j a v  a 2  s.  c  om*/
    ByteArrayOutputStream bos = new ByteArrayOutputStream(8192);
    try {
        GZIPOutputStream gzip = new GZIPOutputStream(bos);
        gzip.write(bytes, 0, bytes.length);
        gzip.finish();
        byte[] fewerBytes = bos.toByteArray();
        gzip.close();
        bos.close();
        gzip = null;
        bos = null;
        return fewerBytes;
    } catch (IOException e) {
        return null;
    }
}

From source file:ZipDemo.java

public static final byte[] compress(final String uncompressed) throws IOException {
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    GZIPOutputStream zos = new GZIPOutputStream(baos);

    byte[] uncompressedBytes = uncompressed.getBytes();

    zos.write(uncompressedBytes, 0, uncompressedBytes.length);
    zos.close();// w  w  w.  j a v  a 2s .  c  o  m

    return baos.toByteArray();
}

From source file:azkaban.utils.GZIPUtils.java

public static byte[] gzipBytes(byte[] bytes, int offset, int length) throws IOException {
    ByteArrayOutputStream byteOutputStream = new ByteArrayOutputStream();
    GZIPOutputStream gzipStream = null;

    gzipStream = new GZIPOutputStream(byteOutputStream);

    gzipStream.write(bytes, offset, length);
    gzipStream.close();// w  w w  . ja v a  2 s  .  com
    return byteOutputStream.toByteArray();
}

From source file:com.google.api.server.spi.IoUtilTest.java

private static byte[] compress(byte[] bytes) {
    try {/*w  w  w.j  a v  a2  s  .c  om*/
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        GZIPOutputStream gos = new GZIPOutputStream(baos);
        gos.write(bytes, 0, bytes.length);
        gos.close();
        return baos.toByteArray();
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
}

From source file:com.cenrise.test.azkaban.GZIPUtils.java

public static byte[] gzipBytes(final byte[] bytes, final int offset, final int length) throws IOException {
    final ByteArrayOutputStream byteOutputStream = new ByteArrayOutputStream();
    GZIPOutputStream gzipStream = null;

    gzipStream = new GZIPOutputStream(byteOutputStream);

    gzipStream.write(bytes, offset, length);
    gzipStream.close();/*from w w  w.j  a  va 2  s  .  c  om*/
    return byteOutputStream.toByteArray();
}

From source file:org.linguafranca.pwdb.kdbx.Helpers.java

public static byte[] zipBinaryContent(byte[] value) {
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    // zip up the content
    try {//w w  w .  j  a  v  a  2 s  . c o m
        GZIPOutputStream g = new GZIPOutputStream(baos);
        g.write(value, 0, value.length);
        g.flush();
        g.close();
    } catch (IOException e) {
        throw new IllegalStateException(e);
    }
    return baos.toByteArray();
}

From source file:Compress.java

public static void gzipFile(String from, String to) throws IOException {
    FileInputStream in = new FileInputStream(from);
    GZIPOutputStream out = new GZIPOutputStream(new FileOutputStream(to));
    byte[] buffer = new byte[4096];
    int bytesRead;
    while ((bytesRead = in.read(buffer)) != -1)
        out.write(buffer, 0, bytesRead);
    in.close();//from  w w  w .j a  va2  s .c o  m
    out.close();
}

From source file:v7db.files.Compression.java

/**
 * @return null, if the "gzipped" data is larger than the input (or there
 *         has been an exception)//from   w w w  .  ja  v  a2 s . co m
 */
public static byte[] gzip(byte[] data, int off, int len) {

    if (len < GZIP_STORAGE_OVERHEAD)
        return null;
    try {
        ByteArrayOutputStream baos = new ByteArrayOutputStream(data.length);
        GZIPOutputStream gz = new GZIPOutputStream(baos);
        gz.write(data, off, len);
        gz.close();
        if (baos.size() >= len)
            return null;
        return baos.toByteArray();
    } catch (Exception e) {
        log.error("failed to gzip byte array", e);
        return null;
    }
}

From source file:com.dbmojo.Util.java

/** GZIP encode a String */
public static String gzipString(String inStr) throws Exception {
    byte[] strBytes = inStr.getBytes();
    ByteArrayOutputStream bout = new ByteArrayOutputStream();
    GZIPOutputStream gout = new GZIPOutputStream(bout);

    try {//from   ww w . java 2  s.com
        gout.write(strBytes, 0, strBytes.length);
    } finally {
        gout.close();
    }
    return bout.toString();
}

From source file:com.ery.ertc.estorm.util.GZIPUtils.java

public static final byte[] zip(byte[] in, int offset, int length) {
    try {// w w w  . j  a  v  a 2  s. c om
        // compress using GZIPOutputStream
        ByteArrayOutputStream byteOut = new ByteArrayOutputStream(length / EXPECTED_COMPRESSION_RATIO);

        GZIPOutputStream outStream = new GZIPOutputStream(byteOut);

        try {
            outStream.write(in, offset, length);
        } catch (Exception e) {
            LOG.error("Failed to get outStream.write input", e);
        }

        try {
            outStream.close();
        } catch (IOException e) {
            LOG.error("Failed to implement outStream.close", e);
        }

        return byteOut.toByteArray();

    } catch (IOException e) {
        LOG.error("Failed with IOException", e);
        return null;
    }
}