Examples with KnowledgeBase org.drools.KnowledgeBase used on opensource projects

Example 21 with KnowledgeBase

use of org.drools.KnowledgeBase in project jBPM5-Developer-Guide by Salaboy.

the class ProcessAndEventMultiThreadIntegrationTest method createProcessSession.

private StatefulKnowledgeSession createProcessSession() {
    KnowledgeBuilder processKbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
    processKbuilder.add(new ClassPathResource("process-events-simple.bpmn"), ResourceType.BPMN2);
    if (processKbuilder.hasErrors()) {
        for (KnowledgeBuilderError error : processKbuilder.getErrors()) {
            System.out.println(">>> Error:" + error.getMessage());
        }
        fail(">>> Knowledge couldn't be parsed! ");
    }
    KnowledgeBase processKbase = KnowledgeBaseFactory.newKnowledgeBase();
    processKbase.addKnowledgePackages(processKbuilder.getKnowledgePackages());
    return processKbase.newStatefulKnowledgeSession();
}

Example 22 with KnowledgeBase

use of org.drools.KnowledgeBase in project jBPM5-Developer-Guide by Salaboy.

the class ProcessAndEventIntegrationTest method createProcessSession.

private StatefulKnowledgeSession createProcessSession() {
    KnowledgeBuilder processKbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
    processKbuilder.add(new ClassPathResource("process-events-simple.bpmn"), ResourceType.BPMN2);
    if (processKbuilder.hasErrors()) {
        for (KnowledgeBuilderError error : processKbuilder.getErrors()) {
            System.out.println(">>> Error:" + error.getMessage());
        }
        fail(">>> Knowledge couldn't be parsed! ");
    }
    KnowledgeBase processKbase = KnowledgeBaseFactory.newKnowledgeBase();
    processKbase.addKnowledgePackages(processKbuilder.getKnowledgePackages());
    return processKbase.newStatefulKnowledgeSession();
}

Example 23 with KnowledgeBase

use of org.drools.KnowledgeBase in project jBPM5-Developer-Guide by Salaboy.

the class ProcessAndEventIntegrationTest method createEventsSession.

private StatefulKnowledgeSession createEventsSession() {
    KnowledgeBuilder eventsKbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
    eventsKbuilder.add(new ClassPathResource("analyze-process-events.drl"), ResourceType.DRL);
    if (eventsKbuilder.hasErrors()) {
        for (KnowledgeBuilderError error : eventsKbuilder.getErrors()) {
            System.out.println(">>> Error:" + error.getMessage());
        }
        fail(">>> Knowledge couldn't be parsed! ");
    }
    KnowledgeBaseConfiguration config = KnowledgeBaseFactory.newKnowledgeBaseConfiguration();
    config.setOption(EventProcessingOption.STREAM);
    KnowledgeBase eventsKbase = KnowledgeBaseFactory.newKnowledgeBase(config);
    eventsKbase.addKnowledgePackages(eventsKbuilder.getKnowledgePackages());
    StatefulKnowledgeSession eventsKsession = eventsKbase.newStatefulKnowledgeSession();
    ((StatefulKnowledgeSessionImpl) eventsKsession).getInternalWorkingMemory().addEventListener(new DefaultWorkingMemoryEventListener() {

        @Override
        public void objectInserted(ObjectInsertedEvent event) {
            event.getWorkingMemory().fireAllRules();
        }

        @Override
        public void objectUpdated(ObjectUpdatedEvent event) {
            event.getWorkingMemory().fireAllRules();
        }

        @Override
        public void objectRetracted(ObjectRetractedEvent event) {
            event.getWorkingMemory().fireAllRules();
        }
    });
    ((StatefulKnowledgeSessionImpl) eventsKsession).getInternalWorkingMemory().addEventListener(new DefaultAgendaEventListener() {

        @Override
        public void activationCreated(ActivationCreatedEvent event, WorkingMemory workingMemory) {
            workingMemory.fireAllRules();
        }
    });
    return eventsKsession;
}

Example 24 with KnowledgeBase

use of org.drools.KnowledgeBase in project jBPM5-Developer-Guide by Salaboy.

the class HumanTasksAndRulesTest method simpleTest.

@Test
public void simpleTest() throws InterruptedException {
    KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
    // Adds resources to the builder
    kbuilder.add(new ClassPathResource("rules/SimpleRulesAndTask.drl"), ResourceType.DRL);
    KnowledgeBuilderErrors errors = kbuilder.getErrors();
    // Checks for errors
    if (errors.size() > 0) {
        for (KnowledgeBuilderError error : errors) {
            System.out.println(error.getMessage());
        }
        throw new IllegalStateException("Error building kbase!");
    }
    // Creates a new kbase and add all the packages from the builder
    KnowledgeBaseConfiguration kbaseConf = KnowledgeBaseFactory.newKnowledgeBaseConfiguration();
    kbaseConf.setOption(EventProcessingOption.STREAM);
    KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase(kbaseConf);
    kbase.addKnowledgePackages(kbuilder.getKnowledgePackages());
    KnowledgeSessionConfiguration ksessionConf = KnowledgeBaseFactory.newKnowledgeSessionConfiguration();
    ksessionConf.setOption(ClockTypeOption.get("pseudo"));
    final StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession(ksessionConf, null);
    HornetQHTWorkItemHandler hornetQHTWorkItemHandler = new HornetQHTWorkItemHandler(ksession);
    ksession.getWorkItemManager().registerWorkItemHandler("Human Task", hornetQHTWorkItemHandler);
    KnowledgeRuntimeLoggerFactory.newConsoleLogger(ksession);
    // ksession.addEventListener(new DebugAgendaEventListener());
    // Force Init
    TaskClientHelper.getInstance();
    Thread.sleep(3000);
    Task task = createTask();
    // new Thread(new Runnable() {
    // 
    // public void run() {
    // ksession.fireUntilHalt();
    // }
    // }).start();
    // Insert Tasks
    ksession.insert(task);
    // Insert Average
    ksession.insert(new Average(0.0));
    // Create and Insert Threshold
    Threshold avgThreshold = new Threshold("AverageThreshold", 2, -1);
    ksession.insert(avgThreshold);
    // Insert User
    ksession.insert(new User("salaboy"));
    clock = ksession.getSessionClock();
    System.out.println(">>> Time " + clock.getCurrentTime());
    ksession.getWorkingMemoryEntryPoint("water-events").insert(new WaterFlowingEvent(10.0));
    ksession.fireAllRules();
    clock.advanceTime(1000, TimeUnit.MILLISECONDS);
    ksession.getWorkingMemoryEntryPoint("water-events").insert(new WaterFlowingEvent(10.0));
    ksession.fireAllRules();
    clock.advanceTime(1000, TimeUnit.MILLISECONDS);
    ksession.getWorkingMemoryEntryPoint("water-events").insert(new WaterFlowingEvent(10.0));
    ksession.fireAllRules();
    clock.advanceTime(1000, TimeUnit.MILLISECONDS);
    ksession.getWorkingMemoryEntryPoint("water-events").insert(new WaterFlowingEvent(10.0));
    ksession.fireAllRules();
    clock.advanceTime(1000, TimeUnit.MILLISECONDS);
    ksession.getWorkingMemoryEntryPoint("water-events").insert(new WaterFlowingEvent(10.0));
    ksession.fireAllRules();
    clock.advanceTime(1000, TimeUnit.MILLISECONDS);
    System.out.println(">>> Time " + clock.getCurrentTime());
    ksession.getWorkingMemoryEntryPoint("water-events").insert(new WaterFlowingEvent(10.0));
    ksession.fireAllRules();
    clock.advanceTime(1000, TimeUnit.MILLISECONDS);
    ksession.getWorkingMemoryEntryPoint("water-events").insert(new WaterFlowingEvent(10.0));
    ksession.fireAllRules();
    clock.advanceTime(1000, TimeUnit.MILLISECONDS);
    ksession.getWorkingMemoryEntryPoint("water-events").insert(new WaterFlowingEvent(10.0));
    ksession.fireAllRules();
    clock.advanceTime(1000, TimeUnit.MILLISECONDS);
    ksession.getWorkingMemoryEntryPoint("water-events").insert(new WaterFlowingEvent(10.0));
    ksession.fireAllRules();
    clock.advanceTime(1000, TimeUnit.MILLISECONDS);
    ksession.getWorkingMemoryEntryPoint("water-events").insert(new WaterFlowingEvent(10.0));
    ksession.fireAllRules();
    clock.advanceTime(1000, TimeUnit.MILLISECONDS);
    System.out.println(">>> Time " + clock.getCurrentTime());
    org.drools.runtime.rule.QueryResults results = ksession.getQueryResults("getAverage", new Object[] {});
    for (QueryResultsRow row : results) {
        System.out.println(">>> Current Average: " + ((Average) row.get("$currentAverage")).getValue().toString());
        assertEquals("10.0", ((Average) row.get("$currentAverage")).getValue().toString());
    }
    Thread.sleep(3000);
    List<TaskSummary> tasks = TaskClientHelper.getInstance().getAssignedTasksByUser("salaboy");
    assertEquals(1, tasks.size());
    System.out.println(">>> Current Assigned Tasks: " + tasks.get(0).getName());
    System.out.println(">>> Time " + clock.getCurrentTime());
    ksession.getWorkingMemoryEntryPoint("water-events").insert(new WaterFlowingEvent(1.0));
    ksession.fireAllRules();
    clock.advanceTime(1000, TimeUnit.MILLISECONDS);
    ksession.getWorkingMemoryEntryPoint("water-events").insert(new WaterFlowingEvent(1.0));
    ksession.fireAllRules();
    clock.advanceTime(1000, TimeUnit.MILLISECONDS);
    ksession.getWorkingMemoryEntryPoint("water-events").insert(new WaterFlowingEvent(1.0));
    ksession.fireAllRules();
    clock.advanceTime(1000, TimeUnit.MILLISECONDS);
    ksession.getWorkingMemoryEntryPoint("water-events").insert(new WaterFlowingEvent(1.0));
    ksession.fireAllRules();
    clock.advanceTime(1000, TimeUnit.MILLISECONDS);
    ksession.getWorkingMemoryEntryPoint("water-events").insert(new WaterFlowingEvent(1.0));
    ksession.fireAllRules();
    clock.advanceTime(1000, TimeUnit.MILLISECONDS);
    System.out.println(">>> Time " + clock.getCurrentTime());
    ksession.getWorkingMemoryEntryPoint("water-events").insert(new WaterFlowingEvent(1.0));
    ksession.fireAllRules();
    clock.advanceTime(1000, TimeUnit.MILLISECONDS);
    ksession.getWorkingMemoryEntryPoint("water-events").insert(new WaterFlowingEvent(1.0));
    ksession.fireAllRules();
    clock.advanceTime(1000, TimeUnit.MILLISECONDS);
    ksession.getWorkingMemoryEntryPoint("water-events").insert(new WaterFlowingEvent(1.0));
    ksession.fireAllRules();
    clock.advanceTime(1000, TimeUnit.MILLISECONDS);
    ksession.getWorkingMemoryEntryPoint("water-events").insert(new WaterFlowingEvent(1.0));
    ksession.fireAllRules();
    clock.advanceTime(1000, TimeUnit.MILLISECONDS);
    ksession.getWorkingMemoryEntryPoint("water-events").insert(new WaterFlowingEvent(1.0));
    ksession.fireAllRules();
    clock.advanceTime(1000, TimeUnit.MILLISECONDS);
    System.out.println(">>> Time " + clock.getCurrentTime());
    results = ksession.getQueryResults("getAverage", new Object[] {});
    Thread.sleep(3000);
    for (QueryResultsRow row : results) {
        System.out.println(">>> Current Average: " + ((Average) row.get("$currentAverage")).getValue().toString());
        assertEquals("1.0", ((Average) row.get("$currentAverage")).getValue().toString());
    }
    Thread.sleep(3000);
    tasks = TaskClientHelper.getInstance().getAssignedTasksByUser("salaboy");
    assertEquals(0, tasks.size());
    System.out.println(">>> I don't have any task assigned now!");
    Thread.sleep(3000);
}

Example 25 with KnowledgeBase

use of org.drools.KnowledgeBase in project jBPM5-Developer-Guide by Salaboy.

the class MyFirstDrools5RulesTest method testSimpleRules.

@Test
public void testSimpleRules() {
    KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
    kbuilder.add(new ClassPathResource("simpleRules.drl"), ResourceType.DRL);
    if (kbuilder.hasErrors()) {
        for (KnowledgeBuilderError error : kbuilder.getErrors()) {
            System.out.println(">>> Error:" + error.getMessage());
        }
        fail(">>> Knowledge couldn't be parsed! ");
    }
    KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
    kbase.addKnowledgePackages(kbuilder.getKnowledgePackages());
    StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession();
    // Uncomment to see all the logs
    // KnowledgeRuntimeLoggerFactory.newConsoleLogger(ksession);
    // We have our Session, now let's play with our Simple Rules
    Person person = new Person("Salaboy", 28);
    ksession.insert(person);
    int fired = ksession.fireAllRules();
    assertEquals(4, fired);
    assertEquals(true, person.isEnabledToDrive());
    assertEquals(true, person.isEnabledToVote());
    assertEquals(true, person.isHappy());
    Person person2 = new Person("John", 19);
    ksession.insert(person2);
    fired = ksession.fireAllRules();
    assertEquals(3, fired);
    assertEquals(true, person2.isEnabledToDrive());
    assertEquals(false, person2.isEnabledToVote());
    assertEquals(true, person2.isHappy());
    Person person3 = new Person("Marie", 17);
    ksession.insert(person3);
    fired = ksession.fireAllRules();
    assertEquals(0, fired);
    assertEquals(false, person3.isEnabledToDrive());
    assertEquals(false, person3.isEnabledToVote());
    assertEquals(false, person3.isHappy());
    ksession.dispose();
}