Examples of org.drools.core.time.SessionPseudoClock

org.drools.core.time.SessionPseudoClock
A clock interface for the implementation of pseudo clocks, that are clocks where the user have control over the actual clock working. Pseudo clocks are particularly useful for simulations, "what if" scenario runs, and for tests.

        KieSessionConfiguration ksconfig = KnowledgeBaseFactory.newKnowledgeSessionConfiguration();
        ksconfig.setOption(ClockTypeOption.get("pseudo"));


        KieSession ksession = kbase.newKieSession(ksconfig, null);


        SessionPseudoClock clock = ksession.getSessionClock();


        EntryPoint ePoint = ksession.getEntryPoint("EStream");
        EntryPoint entryPoint = ksession.getEntryPoint("EventStream");


        ePoint.insert(new TestEvent("zero"));
        entryPoint.insert(new TestEvent("one"));
        clock.advanceTime( 10, TimeUnit.SECONDS );
        entryPoint.insert(new TestEvent("two"));
        clock.advanceTime( 10, TimeUnit.SECONDS );
        entryPoint.insert(new TestEvent("three"));
        QueryResults results = ksession.getQueryResults("EventsBeforeNineSeconds");
        assertEquals(1, results.size());


        ksession.dispose();

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        KieSessionConfiguration ksconf = KnowledgeBaseFactory.newKnowledgeSessionConfiguration();
        ksconf.setOption( ClockTypeOption.get( ClockType.PSEUDO_CLOCK.getId() ) );


        StatefulKnowledgeSession ksession = createKnowledgeSession(kbase, ksconf);


        SessionPseudoClock clock = (SessionPseudoClock) ksession.<SessionClock>getSessionClock();
        EntryPoint ePoint = ksession.getEntryPoint( "EStream" );
        EntryPoint entryPoint = ksession.getEntryPoint( "EventStream" );




        ePoint.insert(new StockTick(0L, "zero", 0.0, 0));


        entryPoint.insert(new StockTick(1L, "one", 0.0, 0));


        clock.advanceTime( 10, TimeUnit.SECONDS );


        entryPoint.insert(new StockTick(2L, "two",0.0,  0));


        clock.advanceTime( 10, TimeUnit.SECONDS );


        entryPoint.insert(new StockTick(3L, "three", 0.0, 0));


        QueryResults results = ksession.getQueryResults("EventsBeforeNineSeconds");

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        //init session clock
        KieSessionConfiguration sessionConfig = KnowledgeBaseFactory.newKnowledgeSessionConfiguration();
        sessionConfig.setOption( ClockTypeOption.get("pseudo") );
        //init stateful knowledge session
        StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession(sessionConfig, null);
        SessionPseudoClock clock = ksession.getSessionClock();
        ArrayList list = new ArrayList(  );
        ksession.setGlobal( "list", list );




        //insert events
        for(int i=1;i<3;i++){
            StockTick event = new StockTick( (i-1), "XXX", 1.0, 0 );
            clock.advanceTime( 1001, TimeUnit.MILLISECONDS );
            ksession.insert( event );


            System.out.println(i + ". rule invocation");
            ksession.fireAllRules();
        }


        clock.advanceTime( 3001, TimeUnit.MILLISECONDS );
        StockTick event = new StockTick( 3, "XXX", 1.0, 0 );
        System.out.println("3. rule invocation");
        ksession.insert( event );
        ksession.fireAllRules();


        clock.advanceTime( 3001, TimeUnit.MILLISECONDS );
        StockTick event2 = new StockTick( 3, "XXX", 1.0, 0 );
        System.out.println("4. rule invocation");
        ksession.insert( event2 );
        ksession.fireAllRules();

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        KieSessionConfiguration sessionConfig = KnowledgeBaseFactory.newKnowledgeSessionConfiguration();
        sessionConfig.setOption( ClockTypeOption.get( ClockType.PSEUDO_CLOCK.getId() ) );


        //init stateful knowledge session
        StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession( sessionConfig, null );
        SessionPseudoClock clock = ksession.getSessionClock();


        ArrayList list = new ArrayList( );
        ksession.setGlobal( "list", list );


        ksession.fireAllRules();
        list.clear();


        for ( int j = 0; j < 5; j++ ) {
            clock.advanceTime( 500, TimeUnit.MILLISECONDS );
            ksession.insert( new MyEvent( clock.getCurrentTime() ) );
            ksession.getEntryPoint( "stream" ).insert( new MyEvent( clock.getCurrentTime() ) );
            clock.advanceTime( 500, TimeUnit.MILLISECONDS );
            ksession.fireAllRules();


            System.out.println( list );
            switch ( j ) {
                case 0 : assertEquals( Arrays.asList( 1, 1, 0, 1, 1, 0 ), list );

View Full Code Here

        KieSessionConfiguration sessionConfig = KnowledgeBaseFactory.newKnowledgeSessionConfiguration();
        sessionConfig.setOption( ClockTypeOption.get( ClockType.PSEUDO_CLOCK.getId() ) );


        //init stateful knowledge session
        StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession( sessionConfig, null );
        SessionPseudoClock clock = ksession.getSessionClock();


        ArrayList list = new ArrayList( );
        ksession.setGlobal( "list", list );


        ksession.insert( "go" );
        ksession.fireAllRules();


        clock.advanceTime( 100, TimeUnit.MILLISECONDS );


        ksession.insert( "go" );
        ksession.fireAllRules();


        clock.advanceTime( 500, TimeUnit.MILLISECONDS );


        ksession.insert( "go" );
        ksession.fireAllRules();


        assertEquals( Arrays.asList( 1L, 2L, 1L ), list );

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        sessionConfig.setOption( ClockTypeOption.get( ClockType.PSEUDO_CLOCK.getId() ) );


        //init stateful knowledge session
        StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession( sessionConfig, null );


        SessionPseudoClock clock = (SessionPseudoClock) ksession.<SessionClock>getSessionClock();


        // generate the event
        ksession.fireAllRules();


        // move on..
        clock.advanceTime( 10, TimeUnit.SECONDS );


        ksession.fireAllRules();


        // The event should still be there...

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        conf.setOption( ClockTypeOption.get( "pseudo" ) );
        KieSession ksession = kbase.newStatefulKnowledgeSession( conf, null );
        ArrayList list = new ArrayList( );
        ksession.setGlobal( "list", list );


        SessionPseudoClock clock = ( SessionPseudoClock ) ksession.getSessionClock();


        clock.advanceTime( 1100, TimeUnit.MILLISECONDS );


        StockTick tick = new StockTick( 0, "AAA", 1.0, 0 );
        StockTick tock = new StockTick( 1, "BBB", 1.0, 2500 );
        StockTick tack = new StockTick( 1, "CCC", 1.0, 2700 );


        EntryPoint epa = ksession.getEntryPoint("AAA");
        EntryPoint epb = ksession.getEntryPoint("BBB");


        epa.insert( tick );
        epb.insert( tock );
        ksession.insert( tack );


        FactHandle handle = ksession.insert("go1");
        ksession.fireAllRules();
        System.out.println( "***** " + list + " *****");
        assertEquals( Arrays.asList(0L, 1L, 1L), list );
        list.clear();
        ksession.retract( handle );


        clock.advanceTime( 2550, TimeUnit.MILLISECONDS );


        handle = ksession.insert( "go2" );
        ksession.fireAllRules();
        System.out.println( "***** " + list + " *****");
        assertEquals( Arrays.asList( 0L, 0L, 1L ), list );
        list.clear();
        ksession.retract( handle );


        clock.advanceTime( 500, TimeUnit.MILLISECONDS );


        handle = ksession.insert( "go3" );
        ksession.fireAllRules();
        System.out.println( "***** " + list + " *****");
        assertEquals( Arrays.asList( 0L, 0L, 0L ), list );

View Full Code Here

        List list = new ArrayList();
        ksession.setGlobal("list", list);


        // Using the Pseudo Clock.
        SessionClock clock = ksession.getSessionClock();
        SessionPseudoClock pseudoClock = (SessionPseudoClock) clock;


        // Insert the event.
        String eventOne = "one";
        ksession.insert(eventOne);


        // Advance the time .... so the timer will fire.
        pseudoClock.advanceTime(10000, TimeUnit.MILLISECONDS);


        // Rule doesn't fire in PHREAK. This is because you need to call 'fireAllRules' after you've inserted the fact, otherwise the timer
        // job is not created.


        ksession.fireAllRules();


        // Rule still doesn't fire, because the DefaultTimerJob is created now, and now we need to advance the timer again.


        pseudoClock.advanceTime(30000, TimeUnit.MILLISECONDS);
        barrier.await();
        barrier.reset();
        aBool.set(true);


        pseudoClock.advanceTime(10000, TimeUnit.MILLISECONDS);
        barrier.await();
        barrier.reset();
        aBool.set(true);


        String eventTwo = "two";
        ksession.insert(eventTwo);
        ksession.fireAllRules();


        // 60
        pseudoClock.advanceTime(10000, TimeUnit.MILLISECONDS);
        barrier.await();
        barrier.reset();
        aBool.set(true);


        // 70
        pseudoClock.advanceTime(10000, TimeUnit.MILLISECONDS);
        barrier.await();
        barrier.reset();
        aBool.set(true);


        //From here, the second rule should fire.
        //phaser.register();
        pseudoClock.advanceTime(10000, TimeUnit.MILLISECONDS);
        barrier.await();
        barrier.reset();
        aBool.set(true);


        // Now 2 rules have fired, and those will now fire every 10 seconds.
        pseudoClock.advanceTime(20000, TimeUnit.MILLISECONDS);
        barrier.await();
        barrier.reset();


        pseudoClock.advanceTime(20000, TimeUnit.MILLISECONDS);
        aBool.set(true);
        barrier.await();
        barrier.reset();


        pseudoClock.advanceTime(20000, TimeUnit.MILLISECONDS);
        aBool.set(true);
        barrier.await();
        barrier.reset();


        ksession.destroy();

View Full Code Here


        List list = new ArrayList();
        ksession.setGlobal("list", list);


        SessionClock clock = ksession.getSessionClock();
        SessionPseudoClock pseudoClock = (SessionPseudoClock) clock;


        ksession.insert(1);
        ksession.fireAllRules();
        pseudoClock.advanceTime(35, TimeUnit.SECONDS);
        ksession.fireAllRules();
        assertEquals(2, list.size());
    }

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        ksession.insert( ft.newInstance() );
        ksession.fireAllRules();
        ksession.insert( ft.newInstance() );
        ksession.fireAllRules();


        SessionPseudoClock clock = ksession.getSessionClock();
        clock.advanceTime( 1, TimeUnit.MINUTES );


        ksession.fireAllRules();


        assertFalse( list.contains( 0 ) );
    }

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