public static long readLong ( ArrayView source , int position ) { return ( long ) ( source . get ( position ) & 0xFF ) << 56 | ( long ) ( source . get ( position + 1 ) & 0xFF ) << 48 | ( long ) ( source . get ( position + 2 ) & 0xFF ) << 40 | ( long ) ( source . get ( position + 3 ) & 0xFF ) << 32 | ( long ) ( source . get ( position + 4 ) & 0xFF ) << 24 | ( source . get ( position + 5 ) & 0xFF ) << 16 | ( source . get ( position + 6 ) & 0xFF ) << 8 | ( source . get ( position + 7 ) & 0xFF ) ; }
Reads a 64 - bit long from the given ArrayView starting at the given position .