/**
* Takes a packed-stream InputStream, and writes to a JarOutputStream. Internally the entire
* buffer must be read, it may be more efficient to read the packed-stream to a file and pass the
* File object, in the alternate method described below.
*
* <p>Closes its input but not its output. (The output can accumulate more elements.)
*
* @param in an InputStream.
* @param out a JarOutputStream.
* @exception IOException if an error is encountered.
*/
public void unpack(InputStream in0, JarOutputStream out) throws IOException {
assert (Utils.currentInstance.get() == null);
TimeZone tz = (_props.getBoolean(Utils.PACK_DEFAULT_TIMEZONE)) ? null : TimeZone.getDefault();
try {
Utils.currentInstance.set(this);
if (tz != null) TimeZone.setDefault(TimeZone.getTimeZone("UTC"));
final int verbose = _props.getInteger(Utils.DEBUG_VERBOSE);
BufferedInputStream in = new BufferedInputStream(in0);
if (Utils.isJarMagic(Utils.readMagic(in))) {
if (verbose > 0) Utils.log.info("Copying unpacked JAR file...");
Utils.copyJarFile(new JarInputStream(in), out);
} else if (_props.getBoolean(Utils.DEBUG_DISABLE_NATIVE)) {
(new DoUnpack()).run(in, out);
in.close();
Utils.markJarFile(out);
} else {
(new NativeUnpack(this)).run(in, out);
in.close();
Utils.markJarFile(out);
}
} finally {
_nunp = null;
Utils.currentInstance.set(null);
if (tz != null) TimeZone.setDefault(tz);
}
}
/**
* Takes an input File containing the pack file, and generates a JarOutputStream.
*
* <p>Does not close its output. (The output can accumulate more elements.)
*
* @param in a File.
* @param out a JarOutputStream.
* @exception IOException if an error is encountered.
*/
public void unpack(File in, JarOutputStream out) throws IOException {
// Use the stream-based implementation.
// %%% Reconsider if native unpacker learns to memory-map the file.
FileInputStream instr = new FileInputStream(in);
unpack(instr, out);
if (_props.getBoolean(Utils.UNPACK_REMOVE_PACKFILE)) {
in.delete();
}
}