presto-plugin-toolkit/src/main/java/io/prestosql/plugin/base/security/FileBasedAccessControl.java/FileBasedAccessControl/FileBasedAccessControl
class FileBasedAccessControl:    @Inject
    public FileBasedAccessControl(FileBasedAccessControlConfig config)
    {
        AccessControlRules rules = parseJson(Paths.get(config.getConfigFile()), AccessControlRules.class);

        this.schemaRules = rules.getSchemaRules();
        this.tableRules = rules.getTableRules();
        this.sessionPropertyRules = rules.getSessionPropertyRules();
    }