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