How to use

write

method

in

org.eclipse.jgit.internal.storage.pack.PackOutputStream

void write(PackOutputStream out, long pos, int cnt)
    throws IOException {
  out.write(block, (int) (pos - start), cnt);
}

private void writeDeltaObjectDeflate(PackOutputStream out,
    final ObjectToPack otp) throws IOException {
  writeBase(out, otp.getDeltaBase());
  crc32.reset();
  otp.setOffset(out.length());
  DeltaCache.Ref ref = otp.popCachedDelta();
  if (ref != null) {
    byte[] zbuf = ref.get();
    if (zbuf != null) {
      out.writeHeader(otp, otp.getCachedSize());
      out.write(zbuf);
      typeStats.cntDeltas++;
      typeStats.deltaBytes += out.length() - otp.getOffset();
      return;
    }
  }
  try (TemporaryBuffer.Heap delta = delta(otp)) {
    out.writeHeader(otp, delta.length());
    Deflater deflater = deflater();
    deflater.reset();
    DeflaterOutputStream dst = new DeflaterOutputStream(out, deflater);
    delta.writeTo(dst, null);
    dst.finish();
  }
  typeStats.cntDeltas++;
  typeStats.deltaBytes += out.length() - otp.getOffset();
}

@Override
void write(PackOutputStream out, long pos, int cnt)
    throws IOException {
  int ptr = (int) (pos - start);
  out.write(array, ptr, cnt);
}

  out.write(buf, 0, (int) dataLength);
} else {
      crc2.update(buf, 0, n);
    out.write(buf, 0, n);
    pos += n;
    cnt -= n;

@Override
void write(PackOutputStream out, long pos, int cnt)
    throws IOException {
  final ByteBuffer s = buffer.slice();
  s.position((int) (pos - start));
  while (0 < cnt) {
    byte[] buf = out.getCopyBuffer();
    int n = Math.min(cnt, buf.length);
    s.get(buf, 0, n);
    out.write(buf, 0, n);
    cnt -= n;
  }
}

  out.write(buf, 0, (int) dataLength);
} else {
      crc2.update(buf, 0, n);
    out.write(buf, 0, n);
    pos += n;
    cnt -= n;

private void writeChecksum(PackOutputStream out) throws IOException {
  packcsum = out.getDigest();
  out.write(packcsum);
}

final void writeFileHeader(int version, long objectCount)
    throws IOException {
  System.arraycopy(PACK_SIGNATURE, 0, headerBuffer, 0, 4);
  NB.encodeInt32(headerBuffer, 4, version);
  NB.encodeInt32(headerBuffer, 8, (int) objectCount);
  write(headerBuffer, 0, 12);
  ofsDelta = packWriter.isDeltaBaseAsOffset();
}

  int n = objectHeader(rawLength, OBJ_OFS_DELTA, headerBuffer);
  n = ofsDelta(count - b.getOffset(), headerBuffer, n);
  write(headerBuffer, 0, n);
} else if (otp.isDeltaRepresentation()) {
  int n = objectHeader(rawLength, OBJ_REF_DELTA, headerBuffer);
  otp.getDeltaBaseId().copyRawTo(headerBuffer, n);
  write(headerBuffer, 0, n + 20);
} else {
  int n = objectHeader(rawLength, otp.getType(), headerBuffer);
  write(headerBuffer, 0, n);

  out.write(buf.array(), 12, n - 12);
  packHeadSkipped = true;
} else {
  out.write(buf.array(), 0, n);

@Override
void write(PackOutputStream out, long pos, int cnt)
    throws IOException {
  int ptr = (int) (pos - start);
  out.write(array, ptr, cnt);
}

@Override
void write(PackOutputStream out, long pos, int cnt)
    throws IOException {
  int ptr = (int) (pos - start);
  out.write(array, ptr, cnt);
}

void write(PackOutputStream out, long pos, int cnt)
    throws IOException {
  out.write(block, (int) (pos - start), cnt);
}

void write(PackOutputStream out, long pos, int cnt)
    throws IOException {
  out.write(block, (int) (pos - start), cnt);
}

@Override
void write(PackOutputStream out, long pos, int cnt)
    throws IOException {
  final ByteBuffer s = buffer.slice();
  s.position((int) (pos - start));
  while (0 < cnt) {
    byte[] buf = out.getCopyBuffer();
    int n = Math.min(cnt, buf.length);
    s.get(buf, 0, n);
    out.write(buf, 0, n);
    cnt -= n;
  }
}

private void writeChecksum(PackOutputStream out) throws IOException {
  packcsum = out.getDigest();
  out.write(packcsum);
}

private void writeChecksum(PackOutputStream out) throws IOException {
  packcsum = out.getDigest();
  out.write(packcsum);
}

@Override
void write(PackOutputStream out, long pos, int cnt)
    throws IOException {
  final ByteBuffer s = buffer.slice();
  s.position((int) (pos - start));
  while (0 < cnt) {
    byte[] buf = out.getCopyBuffer();
    int n = Math.min(cnt, buf.length);
    s.get(buf, 0, n);
    out.write(buf, 0, n);
    cnt -= n;
  }
}

final void writeFileHeader(int version, long objectCount)
    throws IOException {
  System.arraycopy(PACK_SIGNATURE, 0, headerBuffer, 0, 4);
  NB.encodeInt32(headerBuffer, 4, version);
  NB.encodeInt32(headerBuffer, 8, (int) objectCount);
  write(headerBuffer, 0, 12);
  ofsDelta = packWriter.isDeltaBaseAsOffset();
}

final void writeFileHeader(int version, long objectCount)
    throws IOException {
  System.arraycopy(PACK_SIGNATURE, 0, headerBuffer, 0, 4);
  NB.encodeInt32(headerBuffer, 4, version);
  NB.encodeInt32(headerBuffer, 8, (int) objectCount);
  write(headerBuffer, 0, 12);
  ofsDelta = packWriter.isDeltaBaseAsOffset();
}