class NamedKieSessionFromFileExample {

    public void go(PrintStream out) {
        KieServices ks = KieServices.Factory.get();
        KieRepository kr = ks.getRepository();

        KieModule kModule = kr.addKieModule(ks.getResources().newFileSystemResource(getFile("named-kiesession")));

        KieContainer kContainer = ks.newKieContainer(kModule.getReleaseId());

        KieSession kSession = kContainer.newKieSession("ksession1");
        kSession.setGlobal("out", out);

        Object msg1 = createMessage(kContainer, "Dave", "Hello, HAL. Do you read me, HAL?");
        kSession.insert(msg1);
        kSession.fireAllRules();
    }

}