Examples with RuleEventListener org.kie.internal.event.rule.RuleEventListener used on opensource projects

Example 1 with RuleEventListener

use of org.kie.internal.event.rule.RuleEventListener in project drools by kiegroup.

the class RuleEventListenerTest method testRuleEventListener.

@Test
public void testRuleEventListener() {
    String str = "import " + Person.class.getCanonicalName() + "\n" + "global java.util.List list\n" + "rule R when\n" + "  $p: Person( $age: age < 20 )\n" + "then\n" + "  modify($p) { setAge( $age + 1 ) };" + "end\n";
    KieSession ksession = new KieHelper().addContent(str, ResourceType.DRL).build().newKieSession();
    List<String> list = new ArrayList<>();
    ((RuleEventManager) ksession).addEventListener(new RuleEventListener() {

        @Override
        public void onBeforeMatchFire(Match match) {
            list.add("onBeforeMatchFire: " + match.getDeclarationValue("$age"));
        }

        @Override
        public void onAfterMatchFire(Match match) {
            list.add("onAfterMatchFire: " + match.getDeclarationValue("$age"));
        }

        @Override
        public void onDeleteMatch(Match match) {
            list.add("onDeleteMatch: " + match.getDeclarationValue("$age"));
        }

        @Override
        public void onUpdateMatch(Match match) {
            list.add("onUpdateMatch: " + match.getDeclarationValue("$age"));
        }
    });
    ksession.insert(new Person("John Smith", 18));
    ksession.fireAllRules();
    List<String> expected = Arrays.asList("onBeforeMatchFire: 18", "onAfterMatchFire: 19", "onUpdateMatch: 19", "onBeforeMatchFire: 19", "onAfterMatchFire: 20", "onDeleteMatch: 20");
    assertEquals(expected, list);
}

Example 2 with RuleEventListener

use of org.kie.internal.event.rule.RuleEventListener in project drools by kiegroup.

the class Misc2Test method testQueryAndRetract.

@Test
public void testQueryAndRetract() {
    // DROOLS-7
    String str = "global java.util.List list\n" + "\n" + "query q (String $s)\n" + "    String( this == $s )\n" + "end" + "\n" + "rule R1 when\n" + "    $x : String( this == \"x\" )\n" + "    ?q( \"x\"; )\n" + "then\n" + "    delete( \"x\" );\n" + "end\n";
    KieSession ksession = new KieHelper().addContent(str, ResourceType.DRL).build().newKieSession();
    List list = new ArrayList();
    ksession.setGlobal("list", list);
    ((RuleEventManager) ksession).addEventListener(new RuleEventListener() {

        @Override
        public void onDeleteMatch(Match match) {
            list.add("test");
        }
    });
    ksession.insert("x");
    ksession.fireAllRules();
    assertEquals(1, list.size());
}

Example 3 with RuleEventListener

use of org.kie.internal.event.rule.RuleEventListener in project drools by kiegroup.

the class JTMSTest method testPosNegNonConflictingInsertions.

@Test(timeout = 10000)
public void testPosNegNonConflictingInsertions() {
    String s = "package org.drools.core.beliefsystem.jtms;\n" + "\n" + "import java.util.List \n" + "import org.drools.core.common.AgendaItem;" + "global java.util.List list;\n" + "\n" + "rule \"go1\"\n" + "when\n" + "    String( this == 'go1' )\n" + "then\n" + "    insertLogical( 'neg', 'neg' );\n" + "end\n" + "\n" + "rule \"go2\"\n" + "when\n" + "    String( this == 'go2' )\n" + "then\n" + "    insertLogical( 'pos' );\n" + "end\n" + "\n" + "rule \"Positive\"\n" + "when\n" + "    $n : String( this != 'go1' || == 'go2' ) \n" + "then\n" + "    final String s = '+' + $n;" + "    final List l = list;" + "    l.add( s );\n" + "end\n" + "rule \"Negative\"\n" + "when\n" + "    $n : String(   _.neg, this != 'go1' || == 'go2' ) \n" + "then\n" + "    final String s = '-' + $n; \n" + "    final List l = list; \n" + "    l.add( s ); \n" + "end\n";
    KieSession kSession = getSessionFromString(s);
    List list = new ArrayList();
    kSession.setGlobal("list", list);
    ((RuleEventManager) kSession).addEventListener(new RuleEventListener() {

        @Override
        public void onDeleteMatch(Match match) {
            String rule = match.getRule().getName();
            if (rule.equals("Positive")) {
                list.remove("+" + match.getDeclarationValue("$n"));
            } else if (rule.equals("Negative")) {
                list.remove("-" + match.getDeclarationValue("$n"));
            }
        }
    });
    FactHandle fhGo1 = kSession.insert("go1");
    kSession.fireAllRules();
    assertTrue(list.contains("-neg"));
    // just go1
    assertEquals(1, kSession.getEntryPoint("DEFAULT").getObjects().size());
    assertEquals(1, getNegativeObjects(kSession).size());
    FactHandle fhGo2 = kSession.insert("go2");
    kSession.fireAllRules();
    assertTrue(list.contains("-neg"));
    assertTrue(list.contains("+pos"));
    // go1, go2, pos
    assertEquals(3, kSession.getEntryPoint("DEFAULT").getObjects().size());
    assertEquals(1, getNegativeObjects(kSession).size());
    kSession.retract(fhGo1);
    kSession.fireAllRules();
    assertFalse(list.contains("-neg"));
    assertTrue(list.contains("+pos"));
    // go2, pos
    assertEquals(2, kSession.getEntryPoint("DEFAULT").getObjects().size());
    assertEquals(0, getNegativeObjects(kSession).size());
    kSession.retract(fhGo2);
    kSession.fireAllRules();
    assertFalse(list.contains("-neg"));
    assertFalse(list.contains("+pos"));
    assertEquals(0, kSession.getEntryPoint("DEFAULT").getObjects().size());
    assertEquals(0, getNegativeObjects(kSession).size());
}

Example 4 with RuleEventListener

use of org.kie.internal.event.rule.RuleEventListener in project drools by kiegroup.

the class JTMSTest method testConflictToggleWithoutGoingEmpty.

@Test(timeout = 10000)
public void testConflictToggleWithoutGoingEmpty() {
    String s = "package org.drools.core.beliefsystem.jtms;\n" + "\n" + "import java.util.List \n" + "import org.drools.core.common.AgendaItem;" + "global java.util.List list;\n" + "\n" + "rule \"go1\"\n" + "when\n" + "    String( this == 'go1' )\n" + "then\n" + "    insertLogical( 'xxx' );\n" + "end\n" + "rule \"go2\"\n" + "when\n" + "    String( this == 'go2' )\n" + "then\n" + "    insertLogical( 'xxx');\n" + "end\n" + "rule \"go3\"\n" + "when\n" + "    String( this == 'go3' )\n" + "then\n" + "    insertLogical( 'xxx');\n" + "end\n" + "\n" + "rule \"go4\"\n" + "when\n" + "    String( this == 'go4' )\n" + "then\n" + "    insertLogical( 'xxx', 'neg' );\n" + "end\n" + "\n" + "rule \"Positive\"\n" + "when\n" + "    $n : String( this == 'xxx' ) \n" + "then\n" + "    final String s = '+' + $n;" + "    final List l = list;" + "    l.add( s );\n" + "end\n" + "rule \"Negative\"\n" + "when\n" + "    $n : String( _.neg, this == 'xxx' )\n" + "then\n" + "    final String s = '-' + $n; \n" + "    final List l = list; \n" + "    l.add( s ); \n" + "end\n" + "";
    KieSession kSession = getSessionFromString(s);
    List list = new ArrayList();
    kSession.setGlobal("list", list);
    ((RuleEventManager) kSession).addEventListener(new RuleEventListener() {

        @Override
        public void onDeleteMatch(Match match) {
            String rule = match.getRule().getName();
            if (rule.equals("Positive")) {
                list.remove("+" + match.getDeclarationValue("$n"));
            } else if (rule.equals("Negative")) {
                list.remove("-" + match.getDeclarationValue("$n"));
            }
        }
    });
    FactHandle fhGo1 = kSession.insert("go1");
    FactHandle fhGo2 = kSession.insert("go2");
    FactHandle fhGo3 = kSession.insert("go3");
    kSession.fireAllRules();
    System.out.println(list);
    assertTrue(list.contains("+xxx"));
    FactHandle fhGo4 = kSession.insert("go4");
    kSession.fireAllRules();
    assertTrue(list.isEmpty());
    kSession.delete(fhGo4);
    kSession.fireAllRules();
    assertTrue(list.contains("+xxx"));
}

Example 5 with RuleEventListener

use of org.kie.internal.event.rule.RuleEventListener in project drools by kiegroup.

the class JTMSTest method testRetractHandleWhenOnlyNeg.

@Test(timeout = 10000)
@Ignore("Currently cannot support updates")
public void testRetractHandleWhenOnlyNeg() {
    String s = "package org.drools.core.beliefsystem.jtms;\n" + "\n" + "import java.util.List \n" + "import org.drools.core.common.AgendaItem;" + "global java.util.List list;\n" + "\n" + "rule \"go1_1\"\n" + "when\n" + "    String( this == 'go1' )\n" + "then\n" + "    insertLogical( new String( 'neg' ), 'neg' );\n" + "end\n" + "rule \"go1_2\"\n" + "when\n" + "    String( this == 'go1' )\n" + "then\n" + "    insertLogical( new String( 'neg' ), 'neg' );\n" + "end\n" + "rule \"go1_3\"\n" + "when\n" + "    String( this == 'go1' )\n" + "then\n" + "    insertLogical( new String( 'neg' ), 'neg' );\n" + "end\n" + "\n" + "rule \"Negative\"\n" + "when\n" + "    $n : String(  _.neg, this != 'go1' || == 'go2' ) \n" + "then\n" + "    final String s = '-' + $n; \n" + "    final List l = list; \n" + "    l.add( s ); \n" + "end\n";
    KieSession kSession = getSessionFromString(s);
    List list = new ArrayList();
    kSession.setGlobal("list", list);
    ((RuleEventManager) kSession).addEventListener(new RuleEventListener() {

        @Override
        public void onDeleteMatch(Match match) {
            String rule = match.getRule().getName();
            if (rule.equals("Negative")) {
                list.remove("-" + match.getDeclarationValue("$n"));
            }
        }
    });
    FactHandle fhGo1 = kSession.insert("go1");
    kSession.fireAllRules();
    assertTrue(list.contains("-neg"));
    // just go1
    assertEquals(1, kSession.getEntryPoint("DEFAULT").getObjects().size());
    assertEquals(1, getNegativeObjects(kSession).size());
    NamedEntryPoint ep = (NamedEntryPoint) ((StatefulKnowledgeSessionImpl) kSession).getEntryPoint("DEFAULT");
    ObjectHashMap equalityMap = ep.getTruthMaintenanceSystem().getEqualityKeyMap();
    // go1, neg are two different strings.
    assertEquals(2, equalityMap.size());
    org.drools.core.util.Iterator it = equalityMap.iterator();
    EqualityKey key = (EqualityKey) ((ObjectEntry) it.next()).getValue();
    while (!key.getFactHandle().getObject().equals("neg")) {
        key = (EqualityKey) ((ObjectEntry) it.next()).getValue();
    }
    assertEquals(3, key.getBeliefSet().size());
    ep.getTruthMaintenanceSystem().delete(key.getLogicalFactHandle());
    assertEquals(0, key.getBeliefSet().size());
    // just go1
    assertEquals(1, kSession.getEntryPoint("DEFAULT").getObjects().size());
    assertEquals(0, getNegativeObjects(kSession).size());
    assertEquals(0, key.getBeliefSet().size());
    assertEquals(1, ep.getTruthMaintenanceSystem().getEqualityKeyMap().size());
}