Examples with KieSession org.kie.api.runtime.KieSession used on opensource projects

Example 46 with KieSession

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

the class TruthMaintenanceTest method testLogicalInsertions.

@Test(timeout = 10000)
public void testLogicalInsertions() throws Exception {
    final KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
    kbuilder.add(ResourceFactory.newClassPathResource("test_LogicalInsertions.drl", getClass()), ResourceType.DRL);
    Collection<KiePackage> kpkgs = kbuilder.getKnowledgePackages();
    InternalKnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
    kbase.addPackages(kpkgs);
    kbase = SerializationHelper.serializeObject(kbase);
    KieSession session = createKnowledgeSession(kbase);
    final List list = new ArrayList();
    session.setGlobal("list", list);
    final Cheese brie = new Cheese("brie", 12);
    FactHandle brieHandle = session.insert(brie);
    final Cheese provolone = new Cheese("provolone", 12);
    FactHandle provoloneHandle = session.insert(provolone);
    session.fireAllRules();
    session = getSerialisedStatefulKnowledgeSession(session, true);
    System.out.println(list);
    assertEquals(3, list.size());
    assertEquals(3, session.getObjects().size());
    brieHandle = getFactHandle(brieHandle, session);
    session.retract(brieHandle);
    session = getSerialisedStatefulKnowledgeSession(session, true);
    assertEquals(2, session.getObjects().size());
    provoloneHandle = getFactHandle(provoloneHandle, session);
    session.retract(provoloneHandle);
    session.fireAllRules();
    assertEquals(0, session.getObjects().size());
}

Example 47 with KieSession

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

the class TruthMaintenanceTest method testLogicalInsertionsNot.

@Test(timeout = 10000)
public // @Ignore("in Java 8, the byte[] generated by serialization are not the same and requires investigation")
void testLogicalInsertionsNot() throws Exception {
    KieBase kbase = loadKnowledgeBase("test_LogicalInsertionsNot.drl");
    KieSession ksession = kbase.newKieSession();
    final Person a = new Person("a");
    final Cheese cheese = new Cheese("brie", 1);
    ksession.setGlobal("cheese", cheese);
    ksession.fireAllRules();
    ksession = SerializationHelper.getSerialisedStatefulKnowledgeSession(ksession, true);
    Collection list = ksession.getObjects();
    assertEquals("i was not asserted by not a => i.", 1, list.size());
    assertEquals("i was not asserted by not a => i.", cheese, list.iterator().next());
    FactHandle h = ksession.insert(a);
    ksession = SerializationHelper.getSerialisedStatefulKnowledgeSession(ksession, true);
    // no need to fire rules, assertion alone removes justification for i,
    // so it should be deleted.
    // workingMemory.fireAllRules();
    ksession.fireAllRules();
    list = ksession.getObjects();
    assertEquals("a was not asserted or i not deleted.", 1, list.size());
    assertEquals("a was asserted.", a, list.iterator().next());
    assertFalse("i was not rectracted.", list.contains(cheese));
    // no rules should fire, but nevertheless...
    // workingMemory.fireAllRules();
    assertEquals("agenda should be empty.", 0, ((InternalAgenda) ((StatefulKnowledgeSessionImpl) ksession).getAgenda()).agendaSize());
    h = getFactHandle(h, ksession);
    ksession.retract(h);
    ksession = SerializationHelper.getSerialisedStatefulKnowledgeSession(ksession, true);
    ksession.fireAllRules();
    ksession = SerializationHelper.getSerialisedStatefulKnowledgeSession(ksession, true);
    list = ksession.getObjects();
    assertEquals("i was not asserted by not a => i.", 1, list.size());
    assertEquals("i was not asserted by not a => i.", cheese, list.iterator().next());
}

Example 48 with KieSession

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

the class TruthMaintenanceTest method testStatedShadowLogicalWithSingleOccurance.

@Test(timeout = 10000)
public void testStatedShadowLogicalWithSingleOccurance() {
    String droolsSource = "package org.drools.tms.test; \n" + "global java.util.List list; \n" + "rule Justify \n" + "when \n" + "    String( this == 'go1' ) " + "then \n" + "    insertLogical( 'f1' ); \n" + "end \n" + "rule StillHere \n" + "when \n" + "    String( this == 'go2' ) " + "    s : String( this == 'f1' ) " + "then \n" + "    list.add( s ); \n" + "end \n" + "";
    KieBaseConfiguration kieConf = KnowledgeBaseFactory.newKnowledgeBaseConfiguration();
    kieConf.setOption(EqualityBehaviorOption.IDENTITY);
    KieBase kbase = loadKnowledgeBaseFromString(kieConf, droolsSource);
    KieSession session = kbase.newKieSession();
    List list = new ArrayList();
    session.setGlobal("list", list);
    InternalFactHandle fh1 = (InternalFactHandle) session.insert("f1");
    InternalFactHandle fh2 = (InternalFactHandle) session.insert("f2");
    session.insert("go1");
    session.fireAllRules();
    session.insert("go2");
    session.fireAllRules();
    // Make sure f1 only occurs once
    assertEquals(1, list.size());
    assertEquals("f1", list.get(0));
}

Example 49 with KieSession

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

the class TruthMaintenanceTest method testLogicalInsertionsWithExists.

@Test(timeout = 10000)
public // @Ignore("in Java 8, the byte[] generated by serialization are not the same and requires investigation")
void testLogicalInsertionsWithExists() throws Exception {
    KieBase kbase = loadKnowledgeBase("test_LogicalInsertionWithExists.drl");
    KieSession ksession = kbase.newKieSession();
    final Person p1 = new Person("p1", "stilton", 20);
    p1.setStatus("europe");
    FactHandle c1FactHandle = ksession.insert(p1);
    final Person p2 = new Person("p2", "stilton", 30);
    p2.setStatus("europe");
    FactHandle c2FactHandle = ksession.insert(p2);
    final Person p3 = new Person("p3", "stilton", 40);
    p3.setStatus("europe");
    FactHandle c3FactHandle = ksession.insert(p3);
    ksession.fireAllRules();
    ksession = SerializationHelper.getSerialisedStatefulKnowledgeSession(ksession, true);
    // all 3 in europe, so, 2 cheese
    Collection cheeseList = ksession.getObjects(new ClassObjectFilter(Cheese.class));
    assertEquals(2, cheeseList.size());
    // europe=[ 1, 2 ], america=[ 3 ]
    p3.setStatus("america");
    c3FactHandle = getFactHandle(c3FactHandle, ksession);
    ksession.update(c3FactHandle, p3);
    ksession = SerializationHelper.getSerialisedStatefulKnowledgeSession(ksession, true);
    ksession.fireAllRules();
    ksession = SerializationHelper.getSerialisedStatefulKnowledgeSession(ksession, true);
    cheeseList = ksession.getObjects(new ClassObjectFilter(Cheese.class));
    assertEquals(1, cheeseList.size());
    // europe=[ 1 ], america=[ 2, 3 ]
    p2.setStatus("america");
    c2FactHandle = getFactHandle(c2FactHandle, ksession);
    ksession.update(c2FactHandle, p2);
    ksession = SerializationHelper.getSerialisedStatefulKnowledgeSession(ksession, true);
    ksession.fireAllRules();
    ksession = SerializationHelper.getSerialisedStatefulKnowledgeSession(ksession, true);
    cheeseList = ksession.getObjects(new ClassObjectFilter(Cheese.class));
    assertEquals(1, cheeseList.size());
    // europe=[ ], america=[ 1, 2, 3 ]
    p1.setStatus("america");
    c1FactHandle = getFactHandle(c1FactHandle, ksession);
    ksession.update(c1FactHandle, p1);
    ksession = SerializationHelper.getSerialisedStatefulKnowledgeSession(ksession, true);
    ksession.fireAllRules();
    ksession = SerializationHelper.getSerialisedStatefulKnowledgeSession(ksession, true);
    cheeseList = ksession.getObjects(new ClassObjectFilter(Cheese.class));
    assertEquals(2, cheeseList.size());
    // europe=[ 2 ], america=[ 1, 3 ]
    p2.setStatus("europe");
    c2FactHandle = getFactHandle(c2FactHandle, ksession);
    ksession.update(c2FactHandle, p2);
    ksession = SerializationHelper.getSerialisedStatefulKnowledgeSession(ksession, true);
    ksession.fireAllRules();
    ksession = SerializationHelper.getSerialisedStatefulKnowledgeSession(ksession, true);
    cheeseList = ksession.getObjects(new ClassObjectFilter(Cheese.class));
    assertEquals(1, cheeseList.size());
    // europe=[ 1, 2 ], america=[ 3 ]
    p1.setStatus("europe");
    c1FactHandle = getFactHandle(c1FactHandle, ksession);
    ksession.update(c1FactHandle, p1);
    ksession = SerializationHelper.getSerialisedStatefulKnowledgeSession(ksession, true);
    ksession.fireAllRules();
    ksession = SerializationHelper.getSerialisedStatefulKnowledgeSession(ksession, true);
    cheeseList = ksession.getObjects(new ClassObjectFilter(Cheese.class));
    assertEquals(1, cheeseList.size());
    // europe=[ 1, 2, 3 ], america=[ ]
    p3.setStatus("europe");
    c3FactHandle = getFactHandle(c3FactHandle, ksession);
    ksession.update(c3FactHandle, p3);
    ksession = SerializationHelper.getSerialisedStatefulKnowledgeSession(ksession, true);
    ksession.fireAllRules();
    ksession = SerializationHelper.getSerialisedStatefulKnowledgeSession(ksession, true);
    cheeseList = ksession.getObjects(new ClassObjectFilter(Cheese.class));
    assertEquals(2, cheeseList.size());
}

Example 50 with KieSession

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

the class TruthMaintenanceTest method testRestateJustified.

@Test(timeout = 10000)
public void testRestateJustified() {
    String droolsSource = "package org.drools.tms.test; \n" + "declare Foo id : int @key end \n\n" + "rule Zero \n" + "when \n" + " $s : String( this == \"go\" ) \n" + "then \n" + " insertLogical( new Foo(1) ); \n" + "end \n" + "rule Restate \n" + "when \n" + " $s : String( this == \"go2\" ) \n" + " $f : Foo( id == 1 ) \n" + "then \n" + " insert( $f ); \n" + "end \n";
    // ///////////////////////////////////
    KieSession session = loadKnowledgeBaseFromString(droolsSource).newKieSession();
    session.fireAllRules();
    FactHandle handle = session.insert("go");
    session.fireAllRules();
    FactHandle handle2 = session.insert("go2");
    session.fireAllRules();
    session.delete(handle);
    session.delete(handle2);
    session.fireAllRules();
    assertEquals(1, session.getObjects().size());
    session.dispose();
}