Example usage for org.apache.commons.compress.bzip2 CBZip2InputStream CBZip2InputStream

Introduction

In this page you can find the example usage for org.apache.commons.compress.bzip2 CBZip2InputStream CBZip2InputStream.

Prototype

public CBZip2InputStream(final InputStream input) 

Source Link

Usage

From source file:ja.lingo.readers.sdictionary.compressor.Bzip2Compressor.java

public byte[] uncompress(byte[] bytes, int offset, int length) throws IOException {
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    InputStream gzis = new CBZip2InputStream(new ByteArrayInputStream(bytes, offset, length));

    byte[] buffer = new byte[32768];
    int read;//from   w  w  w  .  j  a  v a 2  s. c  o  m
    while ((read = gzis.read(buffer)) != -1) {
        baos.write(buffer, 0, read);
    }
    gzis.close();

    return baos.toByteArray();
}

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From source file:com.stratio.parsers.XMLDumpParser.java

/**
 *
 * Based on wikixmlj by Delip Rao and Jason Smith.
 * Licensed under the Apache License 2.0.
 * Available at http://code.google.com/p/wikixmlj/
 *
 * @return/*w  w w .j  a v  a2 s .c om*/
 * @throws FileNotFoundException
 * @throws IOException
 */
protected InputSource getInputSource() throws FileNotFoundException, IOException {
    if (inStream != null) {
        return new InputSource(inStream);
    }

    FileInputStream fis = new FileInputStream(dumpFile);
    InputStream is;
    InputStreamReader isr;

    if (dumpFile.endsWith(".gz")) {
        is = new GZIPInputStream(fis);
    } else if (dumpFile.endsWith(".bz2")) {
        byte[] ignoreBytes = new byte[2];
        fis.read(ignoreBytes); //"B", "Z" bytes from commandline tools
        is = new CBZip2InputStream(fis);
    } else {
        is = fis;
    }

    CharsetDecoder decoder = Charsets.UTF_8.newDecoder();
    decoder.onUnmappableCharacter(CodingErrorAction.IGNORE);
    decoder.onMalformedInput(CodingErrorAction.IGNORE);
    decoder.replaceWith("?");
    isr = new InputStreamReader(is, decoder);

    return new InputSource(isr);
    //return new InputSource(new BufferedReader(isr));
}

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From source file:cc.creativecomputing.io.CCIOUtil.java

static public InputStream openStream(final String theFileName) {
    InputStream myResult = createStream(theFileName);

    if (myResult == null)
        throw new CCIOException("Could not open the given file:" + theFileName);
    String myExtension = fileExtension(theFileName);
    try {//ww  w.jav  a  2 s  .co  m
        if (myExtension.equals("bz2")) {
            int first = myResult.read();
            int second = myResult.read();
            if (first != 'B' || second != 'Z')
                throw new RuntimeException("Didn't find BZ file signature in .bz2 file");
            return new CBZip2InputStream(myResult);
        }
        if (myExtension.equals("gz"))
            return new GZIPInputStream(myResult);

        return myResult;
    } catch (Exception e) {
        throw new RuntimeException("Could not open the given file:" + theFileName, e);
    }
}

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From source file:ch.rgw.compress.CompEx.java

public static byte[] expand(InputStream in) {
    ByteArrayOutputStream baos;//w  ww.j  a v a2  s.com
    byte[] siz = new byte[4];
    try {
        in.read(siz);
        long size = BinConverter.byteArrayToInt(siz, 0);
        long typ = size & ~0x1fffffff;
        size &= 0x1fffffff;
        byte[] ret = new byte[(int) size];

        switch ((int) typ) {
        case BZIP2:
            CBZip2InputStream bzi = new CBZip2InputStream(in);
            int off = 0;
            int l = 0;
            while ((l = bzi.read(ret, off, ret.length - off)) > 0) {
                off += l;
            }

            bzi.close();
            in.close();
            return ret;
        case GLZ:
            GLZ glz = new GLZ();
            baos = new ByteArrayOutputStream();
            glz.expand(in, baos);
            return baos.toByteArray();
        case HUFF:
            HuffmanInputStream hin = new HuffmanInputStream(in);
            off = 0;
            l = 0;
            while ((l = hin.read(ret, off, ret.length - off)) > 0) {
                off += l;
            }
            hin.close();
            return ret;
        case ZIP:
            ZipInputStream zi = new ZipInputStream(in);
            zi.getNextEntry();
            off = 0;
            l = 0;
            while ((l = zi.read(ret, off, ret.length - off)) > 0) {
                off += l;
            }

            zi.close();
            return ret;
        default:
            throw new Exception("Invalid compress format");
        }
    } catch (Exception ex) {
        ExHandler.handle(ex);
        return null;
    }

}

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From source file:cc.creativecomputing.io.CCIOUtil.java

/**
 * decode a bzip input stream//from  w  ww  . j av  a  2  s .  com
 */
static public InputStream bzipInput(InputStream input) {
    return new CBZip2InputStream(input);
}

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From source file:ch.rgw.tools.StringTool.java

/**
 * Ein mit flatten() erzeugtes Byte-Array wieder in eine HAshtable zurckverwandeln
 * /* w  w w .j  a  v a2 s .  c  o  m*/
 * @param flat
 *            Die komprimierte Hashtable
 * @param compressMode
 *            Expnad-Modus
 * @param ExtInfo
 * @return die Hastbale
 */
@SuppressWarnings("unchecked")
@Deprecated
public static Hashtable fold(final byte[] flat, final int compressMode, final Object ExtInfo) {
    ObjectInputStream ois = null;
    try {
        ByteArrayInputStream bais = new ByteArrayInputStream(flat);
        switch (compressMode) {
        case BZIP:
            ois = new ObjectInputStream(new CBZip2InputStream(bais));
            break;
        case HUFF:
            ois = new ObjectInputStream(new HuffmanInputStream(bais));
            break;
        case GLZ:
            ois = new ObjectInputStream(new GLZInputStream(bais));
            break;
        case ZIP:
            ZipInputStream zis = new ZipInputStream(bais);
            zis.getNextEntry();
            ois = new ObjectInputStream(zis);
            break;
        case GUESS:
            Hashtable<Object, Object> res = fold(flat, ZIP, null);
            if (res == null) {
                res = fold(flat, GLZ, null);
                if (res == null) {
                    res = fold(flat, BZIP, null);
                    if (res == null) {
                        res = fold(flat, HUFF, ExtInfo);
                        if (res == null) {
                            return null;
                        }
                    }
                }
            }
            return res;
        default:
            ois = new ObjectInputStream(bais);
            break;
        }

        Hashtable<Object, Object> res = (Hashtable<Object, Object>) ois.readObject();
        ois.close();
        bais.close();
        return res;
    } catch (Exception ex) {
        // ExHandler.handle(ex); deliberately don't mind
        return null;
    }

}

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From source file:net.contrapunctus.rngzip.io.RNGZSettings.java

/** 
 * Create a decompressing input stream, according to the value of
 * cm. //from  ww  w.j av  a2s .  c o  m
 */
public static InputStream wrapInput(InputStream in, DataCompression cm) throws IOException {
    switch (cm) {
    case NONE:
        break;
    case GZ:
        in = new GZIPInputStream(in);
        break;
    case BZ2:
        in = new CBZip2InputStream(in);
        break;
    case LZMA:
        in = new LzmaInputStream(in);
        break;
    case PPM:
        in = new ArithCodeInputStream(in, new PPMModel(PPM_SMALL_LENGTH));
        break;
    case PPMX:
        in = new ArithCodeInputStream(in, new PPMModel(PPM_LARGE_LENGTH));
        break;
    default:
        assert false;
    }
    return in;
}

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