question: value of . concode_field_sep byte RSV2_MASK concode_elem_sep int offset concode_elem_sep int FIN_MASK concode_elem_sep byte RSV3_MASK concode_elem_sep int fin concode_elem_sep int PAYLOAD_LEN_MASK concode_elem_sep int opcode concode_elem_sep int RSV4_MASK concode_elem_sep int MAX_FRAME_LENGTH_16 concode_elem_sep int rsv concode_elem_sep long MAX_FRAME_LENGTH_63 concode_elem_sep byte payloadLengthType concode_elem_sep byte RSV1_MASK concode_elem_sep byte OPCODE_MASK concode_field_sep FrameHeaderDraft06 createFrameHeader concode_elem_sep FrameHeaderDraft06 createFrameHeader concode_elem_sep Frame createFrame concode_elem_sep int offset concode_elem_sep int intValue concode_elem_sep int intValue concode_elem_sep int intValue concode_elem_sep byte byteValue
target: Opcode function ( int arg0 ) { switch ( arg0 ) { case 0 : return CONTINUATION ; case 1 : return CONNECTION_CLOSE ; case 2 : return PING ; case 3 : return PONG ; case 4 : return TEXT_FRAME ; case 5 : return BINARY_FRAME ; default : return null ; } }