Example usage for org.apache.commons.compress.compressors.xz XZCompressorInputStream read

Introduction

In this page you can find the example usage for org.apache.commons.compress.compressors.xz XZCompressorInputStream read.

Prototype

public int read(byte b[]) throws IOException 

Source Link

Document

Reads some number of bytes from the input stream and stores them into the buffer array b.

Usage

From source file:deodex.tools.ZipTools.java

/**
 * extract an odex file from .xz file//from   w  ww. j  ava2s  .c o m
 * 
 * @returns success only if an odex file was extracted
 * @param odex
 *            the odex file to decompress
 * @throws IOException
 *             well we are using IOs Exception might be thrown
 */
public static boolean extractOdex(File odex) throws IOException {
    File Decomdex;
    if (odex.getName().endsWith(S.ODEX_EXT)) {
        Logger.appendLog("[ZipTools][I]Decompressing  " + odex.getName() + " not needed");
        return true;
    } else if (odex.getName().endsWith(S.COMP_GZ_ODEX_EXT)) {
        Logger.appendLog("[ZipTools][I]Decompressing  " + odex.getName() + " gzip detected ...");
        return TarGzUtils.unGzipOdex(odex, odex.getParentFile());
    } else {
        Logger.appendLog("[ZipTools][I]Decompressing  " + odex.getName() + " xz compression detected ...");
        Decomdex = new File(odex.getParentFile().getAbsolutePath() + "/"
                + StringUtils.getCropString(odex.getName(), odex.getName().length() - 3));
        Logger.appendLog("[ZipTools][I]Decompressing  " + odex.getAbsolutePath() + "  to  "
                + Decomdex.getAbsolutePath());
        FileInputStream fin = new FileInputStream(odex);
        BufferedInputStream in = new BufferedInputStream(fin);
        FileOutputStream out = new FileOutputStream(Decomdex);
        XZCompressorInputStream xzIn = new XZCompressorInputStream(in);
        final byte[] buffer = new byte[32768];
        int n = 0;
        while (-1 != (n = xzIn.read(buffer))) {
            out.write(buffer, 0, n);
        }
        out.close();
        xzIn.close();

    }
    Logger.appendLog("[ZipTools][I]Decompressing  " + odex.getAbsolutePath() + "  to  "
            + Decomdex.getAbsolutePath() + " success ? " + Decomdex.exists());
    return Decomdex.exists();
}

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