cnt -= n;
}
}
if (crc1.getValue() != expectedCRC) {
setCorrupt(src.offset);
throw new CorruptObjectException(MessageFormat.format(
JGitText.get().objectAtHasBadZlibStream,
Long.valueOf(src.offset), getPackFile()));
}
} else if (validate) {
// We don't have a CRC32 code in the index, so compute it
// now while inflating the raw data to get zlib to tell us
// whether or not the data is safe.
//
Inflater inf = curs.inflater();
byte[] tmp = new byte[1024];
if (quickCopy != null) {
quickCopy.check(inf, tmp, dataOffset, (int) dataLength);
} else {
long pos = dataOffset;
long cnt = dataLength;
while (cnt > 0) {
final int n = (int) Math.min(cnt, buf.length);
readFully(pos, buf, 0, n, curs);
crc1.update(buf, 0, n);
inf.setInput(buf, 0, n);
while (inf.inflate(tmp, 0, tmp.length) > 0)
continue;
pos += n;
cnt -= n;
}
}
if (!inf.finished() || inf.getBytesRead() != dataLength) {
setCorrupt(src.offset);
throw new EOFException(MessageFormat.format(
JGitText.get().shortCompressedStreamAt,
Long.valueOf(src.offset)));
}
expectedCRC = crc1.getValue();
} else {
expectedCRC = -1;
}
} catch (DataFormatException dataFormat) {
setCorrupt(src.offset);
CorruptObjectException corruptObject = new CorruptObjectException(
MessageFormat.format(
JGitText.get().objectAtHasBadZlibStream,
Long.valueOf(src.offset), getPackFile()));
corruptObject.initCause(dataFormat);
StoredObjectRepresentationNotAvailableException gone;
gone = new StoredObjectRepresentationNotAvailableException(src);
gone.initCause(corruptObject);
throw gone;
} catch (IOException ioError) {
StoredObjectRepresentationNotAvailableException gone;
gone = new StoredObjectRepresentationNotAvailableException(src);
gone.initCause(ioError);
throw gone;
}
if (quickCopy != null) {
// The entire object fits into a single byte array window slice,
// and we have it pinned. Write this out without copying.
//
out.writeHeader(src, inflatedLength);
quickCopy.write(out, dataOffset, (int) dataLength, null);
} else if (dataLength <= buf.length) {
// Tiny optimization: Lots of objects are very small deltas or
// deflated commits that are likely to fit in the copy buffer.
//
if (!validate) {
long pos = dataOffset;
long cnt = dataLength;
while (cnt > 0) {
final int n = (int) Math.min(cnt, buf.length);
readFully(pos, buf, 0, n, curs);
pos += n;
cnt -= n;
}
}
out.writeHeader(src, inflatedLength);
out.write(buf, 0, (int) dataLength);
} else {
// Now we are committed to sending the object. As we spool it out,
// check its CRC32 code to make sure there wasn't corruption between
// the verification we did above, and us actually outputting it.
//
out.writeHeader(src, inflatedLength);
long pos = dataOffset;
long cnt = dataLength;
while (cnt > 0) {
final int n = (int) Math.min(cnt, buf.length);
readFully(pos, buf, 0, n, curs);
if (validate)
crc2.update(buf, 0, n);
out.write(buf, 0, n);
pos += n;
cnt -= n;
}
if (validate && crc2.getValue() != expectedCRC) {
throw new CorruptObjectException(MessageFormat.format(
JGitText.get().objectAtHasBadZlibStream,
Long.valueOf(src.offset), getPackFile()));
}
}
}