public static CommandExecutor newInstance()

in proxy/frontend/type/mysql/src/main/java/org/apache/shardingsphere/proxy/frontend/mysql/command/MySQLCommandExecutorFactory.java [70:104]


    public static CommandExecutor newInstance(final MySQLCommandPacketType commandPacketType, final CommandPacket commandPacket, final ConnectionSession connectionSession) throws SQLException {
        if (commandPacket instanceof SQLReceivedPacket) {
            log.debug("Execute packet type: {}, sql: {}", commandPacketType, ((SQLReceivedPacket) commandPacket).getSQL());
        } else {
            log.debug("Execute packet type: {}", commandPacketType);
        }
        switch (commandPacketType) {
            case COM_QUIT:
                return new MySQLComQuitExecutor();
            case COM_INIT_DB:
                return new MySQLComInitDbExecutor((MySQLComInitDbPacket) commandPacket, connectionSession);
            case COM_FIELD_LIST:
                return new MySQLComFieldListPacketExecutor((MySQLComFieldListPacket) commandPacket, connectionSession);
            case COM_QUERY:
                return new MySQLComQueryPacketExecutor((MySQLComQueryPacket) commandPacket, connectionSession);
            case COM_PING:
                return new MySQLComPingExecutor(connectionSession);
            case COM_STMT_PREPARE:
                return new MySQLComStmtPrepareExecutor((MySQLComStmtPreparePacket) commandPacket, connectionSession);
            case COM_STMT_EXECUTE:
                return new MySQLComStmtExecuteExecutor((MySQLComStmtExecutePacket) commandPacket, connectionSession);
            case COM_STMT_SEND_LONG_DATA:
                return new MySQLComStmtSendLongDataExecutor((MySQLComStmtSendLongDataPacket) commandPacket, connectionSession);
            case COM_STMT_RESET:
                return new MySQLComStmtResetExecutor((MySQLComStmtResetPacket) commandPacket, connectionSession);
            case COM_STMT_CLOSE:
                return new MySQLComStmtCloseExecutor((MySQLComStmtClosePacket) commandPacket, connectionSession);
            case COM_SET_OPTION:
                return new MySQLComSetOptionExecutor((MySQLComSetOptionPacket) commandPacket, connectionSession);
            case COM_RESET_CONNECTION:
                return new MySQLComResetConnectionExecutor(connectionSession);
            default:
                return new MySQLUnsupportedCommandExecutor(commandPacketType);
        }
    }