private SourceConfig buildMysqlSourceConfig(AuditCycle auditCycle, int statBackTimes) {
        JdbcConfig jdbcConfig = JdbcUtils.buildMysqlConfig();
        return new SourceConfig(auditCycle,
                configuration.get(KEY_MYSQL_SOURCE_QUERY_TEMP_SQL,
                        DEFAULT_MYSQL_SOURCE_QUERY_TEMP_SQL),
                statBackTimes,
                jdbcConfig.getDriverClass(),
                jdbcConfig.getJdbcUrl(),
                jdbcConfig.getUserName(),
                jdbcConfig.getPassword());
    }
Build the configurations of mysql source.

@return
inlong-audit/audit-service/src/main/java/org/apache/inlong/audit/service/node/EtlService.java