/*
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* XZDecDemo
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*
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* Author: Lasse Collin <lasse.collin@tukaani.org>
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*
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* This file has been put into the public domain.
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* You can do whatever you want with this file.
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*/
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import java.io.*;
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import org.tukaani.xz.*;
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/**
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* Decompresses .xz files to standard output. If no arguments are given,
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* reads from standard input.
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*/
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class XZDecDemo {
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public static void main(String[] args) {
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byte[] buf = new byte[8192];
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String name = null;
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try {
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if (args.length == 0) {
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name = "standard input";
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InputStream in = new XZInputStream(System.in);
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int size;
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while ((size = in.read(buf)) != -1)
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System.out.write(buf, 0, size);
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} else {
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// Read from files given on the command line.
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for (int i = 0; i < args.length; ++i) {
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name = args[i];
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InputStream in = new FileInputStream(name);
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try {
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// Since XZInputStream does some buffering internally
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// anyway, BufferedInputStream doesn't seem to be
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// needed here to improve performance.
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// in = new BufferedInputStream(in);
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in = new XZInputStream(in);
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int size;
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while ((size = in.read(buf)) != -1)
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System.out.write(buf, 0, size);
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} finally {
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// Close FileInputStream (directly or indirectly
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// via XZInputStream, it doesn't matter).
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in.close();
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}
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}
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}
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} catch (FileNotFoundException e) {
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System.err.println("XZDecDemo: Cannot open " + name + ": "
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+ e.getMessage());
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System.exit(1);
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} catch (EOFException e) {
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System.err.println("XZDecDemo: Unexpected end of input on "
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+ name);
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System.exit(1);
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} catch (IOException e) {
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System.err.println("XZDecDemo: Error decompressing from "
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+ name + ": " + e.getMessage());
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System.exit(1);
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}
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}
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}
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