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.

                                                                               null );


        AgendaEventListener ael = mock( AgendaEventListener.class );
        ksession.addEventListener( ael );


        SessionPseudoClock clock = (SessionPseudoClock) ksession.<SessionClock>getSessionClock();
        clock.advanceTime( 1000000,
                           TimeUnit.MILLISECONDS );


        ksession.insert( new StockTick( 1,
                                        "RHT",
                                        10,
                                        1000 ) );
        clock.advanceTime( 5,
                           TimeUnit.SECONDS );
        ksession.insert( new StockTick( 2,
                                        "RHT",
                                        10,
                                        1000 ) );
        clock.advanceTime( 5,
                           TimeUnit.SECONDS );
        ksession.insert( new StockTick( 3,
                                        "RHT",
                                        10,
                                        1000 ) );
        clock.advanceTime( 5,
                           TimeUnit.SECONDS );
        ksession.insert( new StockTick( 4,
                                        "ACME",
                                        10,
                                        1000 ) );
        clock.advanceTime( 5,
                           TimeUnit.SECONDS );
        int rulesFired = ksession.fireAllRules();
        assertEquals( 4,
                      rulesFired );

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            sessionFuture.get();
        }
    }


    private void populateSessionWithStocks(StatefulKnowledgeSession ksession, StockFactory stockFactory) {
        final SessionPseudoClock clock = ksession.getSessionClock();


        clock.advanceTime(1, TimeUnit.SECONDS);
        ksession.insert(stockFactory.createStock("ST1", 0d));
        clock.advanceTime(1, TimeUnit.SECONDS);
        ksession.insert(stockFactory.createStock("ST2", 1d));
        clock.advanceTime(1, TimeUnit.SECONDS);
        ksession.insert(stockFactory.createStock("ST3", 0d));
        clock.advanceTime(1, TimeUnit.SECONDS);
        ksession.insert(stockFactory.createStock("ST4", 0d));
        clock.advanceTime(1, TimeUnit.SECONDS);
        ksession.insert(stockFactory.createStock("ST5", 0d));
        clock.advanceTime(1, TimeUnit.SECONDS);
        ksession.insert(stockFactory.createStock("ST6", 1d));
    }

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        ksession.setGlobal( "timeResults",
                            timeResults );
        ksession.setGlobal( "lengthResults",
                            lengthResults );


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


        clock.advanceTime( 5, TimeUnit.SECONDS ); // 5 seconds
        ksession.insert( new OrderEvent( "1", "customer A", 70 ) );
        ksession.fireAllRules();
        System.out.println( lengthResults );
        assertTrue( lengthResults.contains( 70.0 ) );


        clock.advanceTime( 10, TimeUnit.SECONDS ); // 10 seconds
        ksession.insert( new OrderEvent( "2", "customer A", 60 ) );
        ksession.fireAllRules();
        System.out.println( lengthResults );
        assertTrue( lengthResults.contains( 65.0 ) );


        // Third interaction: advance clock and assert new data
        clock.advanceTime( 10, TimeUnit.SECONDS ); // 10 seconds
        ksession.insert( new OrderEvent( "3", "customer A", 50 ) );
        ksession.fireAllRules();
        System.out.println( lengthResults );
        assertTrue( lengthResults.contains( 60.0 ) );


        // Fourth interaction: advance clock and assert new data
        clock.advanceTime( 60, TimeUnit.SECONDS ); // 60 seconds
        ksession.insert( new OrderEvent( "4", "customer A", 25 ) );
        ksession.fireAllRules();
        System.out.println( lengthResults );
        // assertTrue( lengthResults.contains( 45 ) );

View Full Code Here


        List<Number> timeResults = new ArrayList<Number>();


        ksession.setGlobal( "timeResults",
                            timeResults );
        SessionPseudoClock clock = (SessionPseudoClock) ksession.<SessionClock>getSessionClock();


        int count = 0;
        StockTick tick1 = new StockTick( count++, "X", 0.0, 1 );
        StockTick tick2 = new StockTick( count++, "X", 0.0, 3 );
        StockTick tick3 = new StockTick( count++, "X", 0.0, 7 );
        StockTick tick4 = new StockTick( count++, "X", 0.0, 9 );
        StockTick tick5 = new StockTick( count++, "X", 0.0, 15 );


        clock.advanceTime( 30, TimeUnit.MILLISECONDS );


        ksession.insert( tick1 );
        ksession.insert( tick2 );
        ksession.insert( tick3 );
        ksession.insert( tick4 );
        ksession.insert( tick5 );


        ksession.fireAllRules();
        System.out.println(timeResults);
        assertTrue(timeResults.isEmpty());


        clock.advanceTime( 0, TimeUnit.MILLISECONDS );
        ksession.fireAllRules();
        assertTrue( timeResults.isEmpty() );


        clock.advanceTime( 3, TimeUnit.MILLISECONDS );
        ksession.fireAllRules();
        assertTrue( timeResults.isEmpty() );


        clock.advanceTime( 10, TimeUnit.MILLISECONDS );
        ksession.fireAllRules();
        assertTrue( timeResults.isEmpty() );


    }

View Full Code Here

        //init stateful knowledge session
        StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession( sessionConfig, null );
        ArrayList list = new ArrayList( );
        ksession.setGlobal( "list", list );


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


        ksession.insert( new Event( 1, -1, clock.getCurrentTime() ) ); // 0
        clock.advanceTime(600, TimeUnit.MILLISECONDS);
        ksession.fireAllRules();
        ksession.insert( new Event( 2, 0, clock.getCurrentTime() ) ); // 600
        clock.advanceTime(100, TimeUnit.MILLISECONDS);
        ksession.fireAllRules();
        ksession.insert( new Event( 2, 0, clock.getCurrentTime() ) ); // 700
        clock.advanceTime(300, TimeUnit.MILLISECONDS);
        ksession.fireAllRules();
        ksession.insert( new Event( 2, 0, clock.getCurrentTime() ) ); // 1000
        clock.advanceTime(100, TimeUnit.MILLISECONDS);
        ksession.fireAllRules();
        ksession.insert( new Event( 2, 1, clock.getCurrentTime() ) ); // 1100
        clock.advanceTime(100, TimeUnit.MILLISECONDS);
        ksession.fireAllRules();
        clock.advanceTime(100, TimeUnit.MILLISECONDS);
        ksession.fireAllRules();
        ksession.insert( new Event( 2, 0, clock.getCurrentTime() ) ); // 1300


        clock.advanceTime(1000, TimeUnit.MILLISECONDS);
        ksession.fireAllRules();


        assertFalse( list.isEmpty() );
        assertEquals( 1, list.size() );
        Long time = (Long) list.get( 0 );

View Full Code Here

        //init stateful knowledge session
        StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession( sessionConfig, null );
        ArrayList list = new ArrayList( );
        ksession.setGlobal( "list", list );


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


        ksession.insert( new Event( 0, 0, clock.getCurrentTime() ) );
        clock.advanceTime(100, TimeUnit.MILLISECONDS);


        ksession.insert( new Event( 1, 0, clock.getCurrentTime() ) );
        clock.advanceTime(600, TimeUnit.MILLISECONDS);
        ksession.fireAllRules();


        ksession.insert( new Event( 2, 0, clock.getCurrentTime() ) );
        clock.advanceTime(600, TimeUnit.MILLISECONDS);
        ksession.insert( new Event( 3, 0, clock.getCurrentTime() ) );
        ksession.fireAllRules();


        assertFalse( list.isEmpty() );
        assertEquals( 1, list.size() );
        long time = (Long) list.get( 0 );

View Full Code Here

        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();

View Full Code Here

        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 );


        //entry point for sensor events
        EntryPoint sensorEventStream = ksession.getEntryPoint( "SensorEventStream" );


        ksession.insert( "Go" );
        System.out.println("1. fireAllRules()");


        //insert events
        for(int i=2;i<8;i++){
            StockTick event = new StockTick( (i-1), "XXX", 1.0, 0 );
            sensorEventStream.insert( event );


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


            clock.advanceTime(105, TimeUnit.MILLISECONDS);
        }


        //let thread sleep for another 1m to see if dereffered rules fire (timers, (not) after rules)
        clock.advanceTime(100*40*1, TimeUnit.MILLISECONDS);
        ksession.fireAllRules();


        assertEquals( Arrays.asList( 1L, 2L, 3L, 3L, 3L, 3L, -1 ), list );


        ksession.dispose();

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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();

View Full Code Here

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