Examples with FactHandle org.kie.api.runtime.rule.FactHandle used on opensource projects

Example 26 with FactHandle

use of org.kie.api.runtime.rule.FactHandle in project drools by kiegroup.

the class TruthMaintenanceTest method testLogicalInsertions3.

// (timeout=10000)
@Test
public void testLogicalInsertions3() throws Exception {
    KieBase kbase = loadKnowledgeBase("test_logicalInsertions3.drl");
    KieSession ksession = kbase.newKieSession();
    final List list = new ArrayList();
    ksession.setGlobal("events", list);
    // asserting the sensor object
    final Sensor sensor = new Sensor(150, 100);
    FactHandle sensorHandle = ksession.insert(sensor);
    ksession.fireAllRules();
    ksession = SerializationHelper.getSerialisedStatefulKnowledgeSession(ksession, true);
    // alarm must sound
    assertEquals(2, list.size());
    assertEquals(2, ksession.getObjects().size());
    // modifying sensor
    sensor.setTemperature(125);
    sensorHandle = getFactHandle(sensorHandle, ksession);
    ksession.update(sensorHandle, sensor);
    ksession = SerializationHelper.getSerialisedStatefulKnowledgeSession(ksession, true);
    ksession.fireAllRules();
    ksession = SerializationHelper.getSerialisedStatefulKnowledgeSession(ksession, true);
    // alarm must continue to sound
    assertEquals(3, list.size());
    assertEquals(2, ksession.getObjects().size());
    // modifying sensor
    sensor.setTemperature(80);
    sensorHandle = getFactHandle(sensorHandle, ksession);
    ksession.update(sensorHandle, sensor);
    ksession = SerializationHelper.getSerialisedStatefulKnowledgeSession(ksession, true);
    ksession.fireAllRules();
    // no alarms anymore
    assertEquals(3, list.size());
    assertEquals(1, ksession.getObjects().size());
}

Example 27 with FactHandle

use of org.kie.api.runtime.rule.FactHandle in project drools by kiegroup.

the class MultithreadTest method testConcurrentDelete.

@Test(timeout = 20000)
public void testConcurrentDelete() {
    final String drl = "import " + SlowBean.class.getCanonicalName() + ";\n" + "rule R when\n" + "  $sb1: SlowBean() \n" + "  $sb2: SlowBean( id > $sb1.id ) \n" + "then " + "  System.out.println($sb2 + \" > \"+ $sb1);" + "end\n";
    final KieSession ksession = new KieHelper().addContent(drl, ResourceType.DRL).build().newKieSession();
    final int BEAN_NR = 4;
    for (int step = 0; step < 2; step++) {
        final FactHandle[] fhs = new FactHandle[BEAN_NR];
        for (int i = 0; i < BEAN_NR; i++) {
            fhs[i] = ksession.insert(new SlowBean(i + step * BEAN_NR));
        }
        final CyclicBarrier barrier = new CyclicBarrier(2);
        new Thread(new Runnable() {

            @Override
            public void run() {
                ksession.fireAllRules();
                try {
                    barrier.await();
                } catch (final Exception e) {
                    throw new RuntimeException(e);
                }
            }
        }).start();
        try {
            Thread.sleep(15L);
        } catch (final InterruptedException e) {
            throw new RuntimeException(e);
        }
        for (int i = 0; i < BEAN_NR; i++) {
            if (i % 2 == 1) {
                ksession.delete(fhs[i]);
            }
        }
        try {
            barrier.await();
        } catch (final Exception e) {
            throw new RuntimeException(e);
        }
        System.out.println("Done step " + step);
    }
}

Example 28 with FactHandle

use of org.kie.api.runtime.rule.FactHandle in project drools by kiegroup.

the class RuleUnitCoordinationTest method testCoordination.

@Test
public void testCoordination() throws Exception {
    String drl1 = "package org.drools.compiler.integrationtests\n" + "unit " + getCanonicalSimpleName(MasterModelUnit.class) + ";\n" + "import " + MasterModel.class.getCanonicalName() + "\n" + "import " + ApplicableModel.class.getCanonicalName() + "\n" + "import " + ApplyMathModel.class.getCanonicalName() + "\n" + "import " + ApplyStringModel.class.getCanonicalName() + "\n" + "import " + ScheduledModelApplicationUnit.class.getCanonicalName() + "\n" + "\n" + "rule FindModelToApply \n" + "when\n" + "   $mm: MasterModel( subModels != null ) from models\n" + "   $am: ApplicableModel( applied == false, $idx: index ) from $mm.subModels\n" + // "   not ApplicableModel( applied == false, index < $idx ) from $mm.subModels\n" +
    "then\n" + "   applicableModels.insert($am);\n" + "   drools.run(new ScheduledModelApplicationUnit(models,applicableModels));\n" + "end\n" + "";
    String drl2 = "package org.drools.compiler.integrationtests\n" + "unit " + getCanonicalSimpleName(ScheduledModelApplicationUnit.class) + ";\n" + "import " + MasterModel.class.getCanonicalName() + "\n" + "import " + ApplicableModel.class.getCanonicalName() + "\n" + "import " + ApplyMathModel.class.getCanonicalName() + "\n" + "import " + ApplyStringModel.class.getCanonicalName() + "\n" + "\n" + "rule Apply_ApplyMathModel_Addition \n" + "when\n" + "    $amm: ApplyMathModel( applied == false, inputValue1 != null, " + "                          inputValue2 != null, operation == \"add\" ) from applicableModels\n" + "    $v1: Integer() from $amm.inputValue1 \n" + "    $v2: Integer() from $amm.inputValue2 \n" + "then\n" + "    modify($amm) { \n" + "       setResult($v1.intValue() + $v2.intValue()), \n" + "       setApplied(true) \n" + "    };\n" + "    System.out.println(\"Result = \"+$amm.getResult());\n" + "end\n" + "\n" + "rule Apply_ApplyStringModel_Concat \n" + "when\n" + "    $asm: ApplyStringModel( applied == false, inputString1 != null, " + "                            inputString2 != null, operation == \"concat\" ) from applicableModels \n" + "    $v1: String() from $asm.inputString1 \n" + "    $v2: String() from $asm.inputString2 \n" + "then\n" + "    String result = $v1+\" \"+$v2; \n" + "    modify($asm) {\n" + "       setResult(result),\n" + "       setApplied(true)\n" + "    };\n" + "    System.out.println(\"Result = \"+$asm.getResult());\n" + "end\n" + "";
    MasterModel master = new MasterModel("TestMaster");
    ApplyMathModel mathModel = new ApplyMathModel(1, "Math1", "add", 10, 10);
    ApplyStringModel stringModel = new ApplyStringModel(2, "String1", "concat", "hello", "world");
    master.addSubModel(mathModel);
    master.addSubModel(stringModel);
    KieBase kbase = new KieHelper().addContent(drl1, ResourceType.DRL).addContent(drl2, ResourceType.DRL).build();
    RuleUnitExecutor executor = RuleUnitExecutor.create().bind(kbase);
    DataSource<MasterModel> masterModels = executor.newDataSource("models");
    DataSource<ApplicableModel> applicableModels = executor.newDataSource("applicableModel");
    FactHandle masterFH = masterModels.insert(master);
    RuleUnit unit = new MasterModelUnit(masterModels, applicableModels);
    // int x = 1;
    // while (x > 0) {
    // x = executor.run( unit );
    // System.out.println( x );
    // // I'm reinserting the master model to reinforce its evaluation, as I said in our call this is necessary because
    // // the second level froms are made on plain lists which are not normally re-evaluated by from nodes (regardless of rule units).
    // // In theory also the update should be more correct and enough to reinforce this re-evaluation, but for some reason
    // // in this case is not working. I suspect we have a bug in our NotNode related to this specific case, but I'm still
    // // evaluating it. For now the insert should be good enough to allow you to make some progress on this.
    // // masterModels.update( masterFH, master, "subModels" );
    // masterModels.insert( master );
    // }
    executor.run(unit);
    assertEquals(20, (int) mathModel.getResult());
    assertEquals("hello world", stringModel.getResult());
}

Example 29 with FactHandle

use of org.kie.api.runtime.rule.FactHandle in project drools by kiegroup.

the class RuleUnitTest method testMultiLevelGuards.

@Test
public void testMultiLevelGuards() throws Exception {
    String drl1 = "package org.drools.compiler.integrationtests\n" + "unit " + getCanonicalSimpleName(Unit0.class) + "\n" + "import " + UnitA.class.getCanonicalName() + "\n" + "rule X when\n" + "    $b: /ds#Boolean\n" + "then\n" + "    Boolean b = $b;\n" + "    drools.guard( UnitA.class );\n" + "end";
    String drl2 = "package org.drools.compiler.integrationtests\n" + "unit " + getCanonicalSimpleName(UnitA.class) + "\n" + "import " + UnitB.class.getCanonicalName() + "\n" + "rule A when\n" + "    $s: /ds#String\n" + "then\n" + "    drools.guard( UnitB.class );" + "end";
    String drl3 = "package org.drools.compiler.integrationtests\n" + "unit " + getCanonicalSimpleName(UnitB.class) + "\n" + "import " + UnitB.class.getCanonicalName() + "\n" + "rule B when\n" + "    $i: /ds#Integer\n" + "then\n" + "    list.add($i);" + "end";
    KieBase kbase = new KieHelper().addContent(drl1, ResourceType.DRL).addContent(drl2, ResourceType.DRL).addContent(drl3, ResourceType.DRL).build();
    RuleUnitExecutor executor = RuleUnitExecutor.create().bind(kbase);
    DataSource<Object> ds = executor.newDataSource("ds");
    List<Integer> list = new ArrayList<>();
    executor.bindVariable("list", list);
    ds.insert(1);
    executor.run(Unit0.class);
    // all units are inactive
    assertEquals(0, list.size());
    FactHandle guardA = ds.insert(true);
    executor.run(Unit0.class);
    // UnitB still inactive
    assertEquals(0, list.size());
    FactHandle guardB = ds.insert("test");
    executor.run(Unit0.class);
    // all units are active
    assertEquals(1, list.size());
    // all units are active
    assertEquals(1, (int) list.get(0));
    list.clear();
    ds.insert(2);
    executor.run(Unit0.class);
    // all units are inactive
    assertEquals(1, list.size());
    // all units are active
    assertEquals(2, (int) list.get(0));
    list.clear();
    // retracting guard A deactivate unitA and in cascade unit B
    ds.delete(guardA);
    ds.insert(3);
    executor.run(Unit0.class);
    // all units are inactive
    assertEquals(0, list.size());
    // activating guard A reactivate unitA and in cascade unit B
    guardA = ds.insert(true);
    executor.run(Unit0.class);
    // all units are active
    assertEquals(1, list.size());
    list.clear();
}

Example 30 with FactHandle

use of org.kie.api.runtime.rule.FactHandle in project drools by kiegroup.

the class SegmentCreationTest method testBranchCESingleSegment.

@Test
public void testBranchCESingleSegment() throws Exception {
    KieBase kbase = buildKnowledgeBase("   $a : A() \n" + "   if ( $a != null ) do[t1] \n" + "   B() \n");
    InternalWorkingMemory wm = ((InternalWorkingMemory) kbase.newKieSession());
    ObjectTypeNode aotn = getObjectTypeNode(kbase, LinkingTest.A.class);
    LeftInputAdapterNode liaNode = (LeftInputAdapterNode) aotn.getObjectSinkPropagator().getSinks()[0];
    ConditionalBranchNode cen1Node = (ConditionalBranchNode) liaNode.getSinkPropagator().getSinks()[0];
    JoinNode bNode = (JoinNode) cen1Node.getSinkPropagator().getSinks()[0];
    RuleTerminalNode rtn1 = (RuleTerminalNode) bNode.getSinkPropagator().getSinks()[0];
    FactHandle bFh = wm.insert(new LinkingTest.B());
    wm.flushPropagations();
    LiaNodeMemory liaMem = (LiaNodeMemory) wm.getNodeMemory(liaNode);
    SegmentMemory smem = liaMem.getSegmentMemory();
    assertEquals(1, smem.getAllLinkedMaskTest());
    // B links, but it will not trigger mask
    assertEquals(4, smem.getLinkedNodeMask());
    assertFalse(smem.isSegmentLinked());
    PathMemory pmem = (PathMemory) wm.getNodeMemory(rtn1);
    assertEquals(1, pmem.getAllLinkedMaskTest());
    assertEquals(0, pmem.getLinkedSegmentMask());
    assertFalse(pmem.isRuleLinked());
    wm.insert(new LinkingTest.A());
    wm.flushPropagations();
    // A links in segment
    assertEquals(5, smem.getLinkedNodeMask());
    assertTrue(smem.isSegmentLinked());
    assertEquals(1, pmem.getLinkedSegmentMask());
    assertTrue(pmem.isRuleLinked());
    // retract B does not unlink the rule
    wm.delete(bFh);
    wm.flushPropagations();
    assertEquals(1, pmem.getLinkedSegmentMask());
    assertTrue(pmem.isRuleLinked());
}