private static DrillBuf combineBuffers(
final BufferAllocator allocator, final DrillBuf[] buffers) {
// find the total size we'll need
int size = 0;
for (final DrillBuf buffer : buffers) {
size += buffer.readableBytes();
}
// create the new buffer
final DrillBuf newBuf = allocator.buffer(size);
final DrillBuf writeBuf = newBuf;
for (final DrillBuf buffer : buffers) {
final DrillBuf readBuf = (DrillBuf) buffer.slice();
final int nBytes = readBuf.readableBytes();
final byte[] bytes = new byte[nBytes];
readBuf.readBytes(bytes);
writeBuf.writeBytes(bytes);
}
return newBuf;
}
public long getByteCount() {
return body == null ? 0 : body.readableBytes();
}