/**
* 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);
}
}
void run(InputStream inRaw, JarOutputStream jstream, ByteBuffer presetInput) throws IOException {
BufferedInputStream in0 = new BufferedInputStream(inRaw);
this.in = in0; // for readInputFn to see
_verbose = _props.getInteger(Utils.DEBUG_VERBOSE);
// Fix for BugId: 4902477, -unpack.modification.time = 1059010598000
// TODO eliminate and fix in unpack.cpp
final int modtime =
Pack200.Packer.KEEP.equals(_props.getProperty(Utils.UNPACK_MODIFICATION_TIME, "0"))
? Constants.NO_MODTIME
: _props.getTime(Utils.UNPACK_MODIFICATION_TIME);
copyInOption(Utils.DEBUG_VERBOSE);
copyInOption(Pack200.Unpacker.DEFLATE_HINT);
if (modtime == Constants.NO_MODTIME) // Dont pass KEEP && NOW
copyInOption(Utils.UNPACK_MODIFICATION_TIME);
updateProgress(); // reset progress bar
for (; ; ) {
// Read the packed bits.
long counts = start(presetInput, 0);
_byteCount = _estByteLimit = 0; // reset partial scan counts
++_segCount; // just finished scanning a whole segment...
int nextSeg = (int) (counts >>> 32);
int nextFile = (int) (counts >>> 0);
// Estimate eventual total number of segments and files.
_estSegLimit = _segCount + nextSeg;
double filesAfterThisSeg = _fileCount + nextFile;
_estFileLimit = (int) ((filesAfterThisSeg * _estSegLimit) / _segCount);
// Write the files.
int[] intParts = {0, 0, 0, 0};
// intParts = {size.hi/lo, mod, defl}
Object[] parts = {intParts, null, null, null};
// parts = { {intParts}, name, data0/1 }
while (getNextFile(parts)) {
// BandStructure.printArrayTo(System.out, intParts, 0, parts.length);
String name = (String) parts[1];
long size = ((long) intParts[0] << 32) + (((long) intParts[1] << 32) >>> 32);
long mtime = (modtime != Constants.NO_MODTIME) ? modtime : intParts[2];
boolean deflateHint = (intParts[3] != 0);
ByteBuffer data0 = (ByteBuffer) parts[2];
ByteBuffer data1 = (ByteBuffer) parts[3];
writeEntry(jstream, name, mtime, size, deflateHint, data0, data1);
++_fileCount;
updateProgress();
}
presetInput = getUnusedInput();
long consumed = finish();
if (_verbose > 0) Utils.log.info("bytes consumed = " + consumed);
if (presetInput == null && !Utils.isPackMagic(Utils.readMagic(in0))) {
break;
}
if (_verbose > 0) {
if (presetInput != null) Utils.log.info("unused input = " + presetInput);
}
}
}
private void copyInOption(String opt) {
String val = _props.getProperty(opt);
if (_verbose > 0) Utils.log.info("set " + opt + "=" + val);
if (val != null) {
boolean set = setOption(opt, val);
if (!set) Utils.log.warning("Invalid option " + opt + "=" + val);
}
}
/**
* 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();
}
}
private void updateProgress() {
// Progress is a combination of segment reading and file writing.
final double READ_WT = 0.33;
final double WRITE_WT = 0.67;
double readProgress = _segCount;
if (_estByteLimit > 0 && _byteCount > 0) readProgress += (double) _byteCount / _estByteLimit;
double writeProgress = _fileCount;
double scaledProgress =
READ_WT * readProgress / Math.max(_estSegLimit, 1)
+ WRITE_WT * writeProgress / Math.max(_estFileLimit, 1);
int percent = (int) Math.round(100 * scaledProgress);
if (percent > 100) percent = 100;
if (percent > _prevPercent) {
_prevPercent = percent;
_props.setInteger(Pack200.Unpacker.PROGRESS, percent);
if (_verbose > 0) Utils.log.info("progress = " + percent);
}
}