private void writeChecksumChunk ( byte b [ ] , int off , int len , boolean keep ) throws IOException { int tempChecksum = ( int ) sum . getValue ( ) ; if ( ! keep ) { sum . reset ( ) ; } int2byte ( tempChecksum , checksum ) ; writeChunk ( b , off , len , checksum ) ; }
Generate checksum for the data chunk and output data chunk & checksum to the underlying output stream . If keep is true then keep the current checksum intact do not reset it .