Example usage for java.util.zip Inflater Inflater

Introduction

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

Prototype

public Inflater()

Source Link

Document

Creates a new decompressor.

Usage

From source file:Main.java

private static byte[] expand(byte[] bytes, int skip) {
    byte[] newBytes = new byte[bytes.length - skip];
    Inflater inflater = new Inflater();

    inflater.setInput(bytes, skip, newBytes.length);
    try {/* w w  w. j  a  v  a2s .  c  om*/
        int outCount = inflater.inflate(newBytes);
        System.arraycopy(newBytes, 0, bytes, skip, outCount);
        Arrays.fill(bytes, skip + outCount, bytes.length, (byte) 0);
        return bytes;
    } catch (DataFormatException e) {
    }

    return null;
}

From source file:Main.java

public static byte[] decompress(byte[] data) throws IOException {
    Inflater inflater = new Inflater();
    inflater.setInput(data);//from   w  w  w . ja  va  2  s  .  com
    inflater.finished();

    ByteArrayOutputStream outputStream = new ByteArrayOutputStream(data.length);
    try {
        byte[] buffer = new byte[1024];
        while (!inflater.finished()) {
            int count = inflater.inflate(buffer);
            outputStream.write(buffer, 0, count);
        }
        outputStream.close();
    } catch (DataFormatException ex) {
        throw new IOException(ex);
    }

    byte[] output = outputStream.toByteArray();
    inflater.end();
    return output;
}

From source file:Main.java

public static byte[] decompress(byte[] data) throws IOException, DataFormatException {
    Inflater inflater = new Inflater();
    inflater.setInput(data);// w  w w .  j ava  2 s . c o  m
    inflater.finished();

    ByteArrayOutputStream outputStream = new ByteArrayOutputStream(data.length);
    byte[] buffer = new byte[1024];
    while (!inflater.finished()) {
        int count = inflater.inflate(buffer);
        outputStream.write(buffer, 0, count);
    }
    outputStream.close();

    byte[] output = outputStream.toByteArray();
    inflater.end();
    return output;
}

From source file:Main.java

public static byte[] decompress(byte[] data) throws IOException, DataFormatException {
    Inflater inflater = new Inflater();
    inflater.setInput(data);//from  w  w w .ja v  a 2  s  .  c om

    ByteArrayOutputStream outputStream = new ByteArrayOutputStream(data.length);
    byte[] buffer = new byte[1024];
    while (!inflater.finished()) {
        int count = inflater.inflate(buffer);
        outputStream.write(buffer, 0, count);
    }
    outputStream.close();
    byte[] output = outputStream.toByteArray();

    System.out.println("Original: " + data.length);
    System.out.println("Compressed: " + output.length);
    return output;
}

From source file:Main.java

public static void decompress(byte[] data, int off, int len, OutputStream out) {
    Inflater decompresser = new Inflater();
    decompresser.reset();// w  ww  .  j  a va2s.c  o  m
    decompresser.setInput(data, off, len);
    byte[] buf = new byte[1024];

    try {
        while (!decompresser.finished()) {
            int i = decompresser.inflate(buf);
            out.write(buf, 0, i);
            out.flush();
        }
    } catch (Exception ex) {
        throw new RuntimeException(ex);
    } finally {
        decompresser.end();
    }
}

From source file:Main.java

public static byte[] decompressInZlib(byte[] compressData, int offset, int length) throws Exception {

    Inflater decompresser = new Inflater();
    decompresser.setInput(compressData, 0, compressData.length);

    ByteArrayOutputStream bos = new ByteArrayOutputStream(length);

    int count;//from   w ww  . ja  va 2s .c  o m
    byte[] buf = new byte[1024];
    while (!decompresser.finished()) {
        count = decompresser.inflate(buf);
        bos.write(buf, 0, count);
    }

    byte[] originalData = bos.toByteArray();
    decompresser.end();

    return originalData;
}

From source file:Main.java

public final static byte[] decompress(byte[] input) throws IOException {
    if (input == null || input.length == 0) {
        return input;
    }/*w  ww.  ja va  2  s.  c  o  m*/
    Inflater inflator = new Inflater();
    inflator.setInput(input);
    ByteArrayOutputStream bin = new ByteArrayOutputStream(input.length);
    byte[] buf = new byte[BUFFER_SIZE];
    try {
        while (true) {
            int count = inflator.inflate(buf);
            if (count > 0) {
                bin.write(buf, 0, count);
            } else if (count == 0 && inflator.finished()) {
                break;
            } else {
                throw new IOException("bad zip data, size:" + input.length);
            }
        }
    } catch (DataFormatException t) {
        throw new IOException(t);
    } finally {
        inflator.end();
    }
    return bin.toByteArray();
}

From source file:Main.java

public static byte[] zlibDecompress(byte[] data, int offset, int length) {
    byte[] output = null;

    Inflater decompresser = new Inflater();
    decompresser.reset();/*from  w  w  w  .  ja  v a 2 s . c  o  m*/
    try {
        decompresser.setInput(data, offset, length);
    } catch (Exception e) {
        return null;
    }

    ByteArrayOutputStream o = new ByteArrayOutputStream(data.length);
    try {
        byte[] buf = new byte[1024];
        while (!decompresser.finished()) {
            int i = decompresser.inflate(buf);
            o.write(buf, 0, i);
        }
        output = o.toByteArray();
    } catch (Exception e) {
        output = data;
        e.printStackTrace();
    } finally {
        try {
            o.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    decompresser.end();
    return output;
}

From source file:Main.java

public static byte[] decompress(byte[] data, int off, int len) {
    byte[] output = null;
    Inflater decompresser = new Inflater();
    decompresser.reset();//from ww  w .  j  av a2s  . c o  m
    //      decompresser.setInput(data);
    decompresser.setInput(data, off, len);

    ByteArrayOutputStream o = new ByteArrayOutputStream(data.length);
    try {
        byte[] buf = new byte[1024];
        while (!decompresser.finished()) {
            int i = decompresser.inflate(buf);
            o.write(buf, 0, i);
        }
        output = o.toByteArray();
    } catch (Exception e) {
        throw new RuntimeException(e);
    } finally {
        try {
            o.close();
            decompresser.end();
        } catch (Exception e) {
        }
    }

    return output;
}

From source file:Main.java

public static byte[] decompress(byte[] data) throws IOException, DataFormatException {
    Inflater decompresser = new Inflater();
    decompresser.setInput(data);//  www. j  av  a 2  s.  c  om
    ByteArrayOutputStream outputStream = new ByteArrayOutputStream(data.length);
    byte[] buffer = new byte[1024];
    while (!decompresser.finished()) {
        int count = decompresser.inflate(buffer);
        outputStream.write(buffer, 0, count);
    }
    decompresser.end();
    outputStream.close();
    return outputStream.toByteArray();
}