presto-raptor-legacy/src/main/java/io/prestosql/plugin/raptor/legacy/security/RaptorSecurityConfig.java/RaptorSecurityConfig/setSecuritySystem
class RaptorSecurityConfig:    @Config("raptor.security")
    public RaptorSecurityConfig setSecuritySystem(String securitySystem)
    {
        this.securitySystem = securitySystem;
        return this;
    }