Example usage for java.util.zip GZIPInputStream available

Introduction

In this page you can find the example usage for java.util.zip GZIPInputStream available.

Prototype

public int available() throws IOException 

Source Link

Document

Returns 0 after EOF has been reached, otherwise always return 1.

Usage

From source file:Main.java

public static byte[] gzipDecodeByteArray(byte[] data) {
    GZIPInputStream gzipInputStream = null;
    try {//  w  w  w .j a  va 2s.  c  o  m
        gzipInputStream = new GZIPInputStream(new ByteArrayInputStream(data));

        ByteArrayOutputStream outputStream = new ByteArrayOutputStream(data.length);
        byte[] buffer = new byte[1024];
        while (gzipInputStream.available() > 0) {
            int count = gzipInputStream.read(buffer, 0, 1024);
            if (count > 0) {
                //System.out.println("Read " + count + " bytes");
                outputStream.write(buffer, 0, count);
            }
        }

        outputStream.close();
        gzipInputStream.close();
        return outputStream.toByteArray();
    } catch (IOException e) {
        e.printStackTrace();
        return null;
    }
}

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From source file:net.ulno.jpunch.util.Util.java

public static byte[] unzip(byte[] data) throws IOException {
    InputStream is = new ByteArrayInputStream(data);
    GZIPInputStream gz = new GZIPInputStream(is);
    List<Byte> l = new ArrayList<Byte>();
    while (gz.available() != 0)
        l.add((byte) gz.read());
    // last byte is unnecessary (it is -1)
    byte[] uncmp = new byte[l.size() - 1];
    for (int i = 0; i < l.size() - 1; i++)
        uncmp[i] = l.get(i);//w w  w  . j  a va2s. c  o  m
    return uncmp;
}

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From source file:nl.nn.adapterframework.util.Misc.java

public static byte[] gunzip(byte[] input) throws DataFormatException, IOException {

    // Create an expandable byte array to hold the decompressed data
    ByteArrayInputStream bis = new ByteArrayInputStream(input);
    GZIPInputStream gz = new GZIPInputStream(bis);
    ByteArrayOutputStream bos = new ByteArrayOutputStream(input.length);

    // Decompress the data
    byte[] buf = new byte[1024];
    while (gz.available() > 0) {
        int count = gz.read(buf, 0, 1024);
        if (count > 0) {
            bos.write(buf, 0, count);//from   ww  w.ja  va2s .c om
        }
    }
    bos.close();

    // Get the decompressed data
    return bos.toByteArray();
}

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