Examples with WorkingMemory org.drools.core.WorkingMemory used on opensource projects

Example 21 with WorkingMemory

use of org.drools.core.WorkingMemory in project drools by kiegroup.

the class ReteooRuleBaseMultiThreadedTest method setUp.

@Before
public void setUp() {
    this.kBase = (InternalKnowledgeBase) KnowledgeBaseFactory.newKnowledgeBase();
    pkg = new KnowledgePackageImpl("org.droos.test");
    pkg.setClassFieldAccessorCache(new ClassFieldAccessorCache(Thread.currentThread().getContextClassLoader()));
    JavaDialectRuntimeData data = new JavaDialectRuntimeData();
    data.onAdd(pkg.getDialectRuntimeRegistry(), kBase.getRootClassLoader());
    pkg.getDialectRuntimeRegistry().setDialectData("java", data);
    // we need to add one rule to the package because the previous deadlock was encountered
    // while removing rules from a package when said package is removed from the rulebase
    rule = new RuleImpl("Test");
    rule.setDialect("java");
    rule.setConsequence(new Consequence() {

        public void evaluate(KnowledgeHelper knowledgeHelper, WorkingMemory workingMemory) throws Exception {
        }

        public String getName() {
            return "default";
        }
    });
    pkg.addRule(rule);
    kBase.addPackage(pkg);
}

Example 22 with WorkingMemory

use of org.drools.core.WorkingMemory in project drools by kiegroup.

the class RuleBaseEventSupportTest method setUp.

/* (non-Javadoc)
     * @see junit.framework.TestCase#setUp()
     */
@Before
public void setUp() throws Exception {
    kBase = (InternalKnowledgeBase) KnowledgeBaseFactory.newKnowledgeBase();
    listener1 = new TestRuleBaseListener("(listener-1) ");
    listener2 = new TestRuleBaseListener("(listener-2) ");
    kBase.addEventListener(listener1);
    kBase.addEventListener(listener2);
    final RuleImpl rule1 = new RuleImpl("test1");
    final ClassObjectType cheeseObjectType = new ClassObjectType(Cheese.class);
    final Pattern pattern = new Pattern(0, cheeseObjectType);
    ClassFieldAccessorStore store = new ClassFieldAccessorStore();
    store.setClassFieldAccessorCache(new ClassFieldAccessorCache(Thread.currentThread().getContextClassLoader()));
    store.setEagerWire(true);
    final ClassFieldReader extractor = store.getReader(Cheese.class, "type");
    final FieldValue field = FieldFactory.getInstance().getFieldValue("cheddar");
    final MvelConstraint constraint = new MvelConstraintTestUtil("type == \"cheddar\"", field, extractor);
    pattern.addConstraint(constraint);
    rule1.addPattern(pattern);
    rule1.setConsequence(new Consequence() {

        private static final long serialVersionUID = 510l;

        public void evaluate(final KnowledgeHelper knowledgeHelper, final WorkingMemory workingMemory) throws Exception {
        }

        public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
        }

        public void writeExternal(ObjectOutput out) throws IOException {
        }

        public String getName() {
            return "default";
        }
    });
    final RuleImpl rule2 = new RuleImpl("test2");
    final ClassObjectType cheeseObjectType2 = new ClassObjectType(Cheese.class);
    final Pattern pattern2 = new Pattern(0, cheeseObjectType2);
    final FieldValue field2 = FieldFactory.getInstance().getFieldValue("stilton");
    final MvelConstraint constraint2 = new MvelConstraintTestUtil("type == \"stilton\"", field, extractor);
    pattern2.addConstraint(constraint2);
    rule2.addPattern(pattern2);
    rule2.setConsequence(new Consequence() {

        private static final long serialVersionUID = 510l;

        public void evaluate(final KnowledgeHelper knowledgeHelper, final WorkingMemory workingMemory) throws Exception {
        }

        public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
        }

        public void writeExternal(ObjectOutput out) throws IOException {
        }

        public String getName() {
            return "default";
        }
    });
    pkg = new KnowledgePackageImpl("org.drools.test1");
    pkg.addRule(rule1);
    pkg.addRule(rule2);
}

Example 23 with WorkingMemory

use of org.drools.core.WorkingMemory in project drools by kiegroup.

the class KnowledgeBaseEventSupportTest method setUp.

/* (non-Javadoc)
     * @see junit.framework.TestCase#setUp()
     */
@Before
public void setUp() throws Exception {
    kbase = KnowledgeBaseFactory.newKnowledgeBase();
    listener1 = new TestRuleBaseListener("(listener-1) ");
    listener2 = new TestRuleBaseListener("(listener-2) ");
    kbase.addEventListener(listener1);
    kbase.addEventListener(listener2);
    final RuleImpl rule1 = new RuleImpl("test1");
    final ClassObjectType cheeseObjectType = new ClassObjectType(Cheese.class);
    final Pattern pattern = new Pattern(0, cheeseObjectType);
    ClassFieldAccessorStore store = new ClassFieldAccessorStore();
    store.setClassFieldAccessorCache(new ClassFieldAccessorCache(Thread.currentThread().getContextClassLoader()));
    store.setEagerWire(true);
    final ClassFieldReader extractor = store.getReader(Cheese.class, "type");
    final FieldValue field = FieldFactory.getInstance().getFieldValue("cheddar");
    final MvelConstraint constraint = new MvelConstraintTestUtil("type == \"cheddar\"", field, extractor);
    pattern.addConstraint(constraint);
    rule1.addPattern(pattern);
    rule1.setConsequence(new Consequence() {

        private static final long serialVersionUID = 510l;

        public void evaluate(final KnowledgeHelper knowledgeHelper, final WorkingMemory workingMemory) throws Exception {
        }

        public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
        }

        public void writeExternal(ObjectOutput out) throws IOException {
        }

        public String getName() {
            return "default";
        }
    });
    final RuleImpl rule2 = new RuleImpl("test2");
    final ClassObjectType cheeseObjectType2 = new ClassObjectType(Cheese.class);
    final Pattern pattern2 = new Pattern(0, cheeseObjectType2);
    final FieldValue field2 = FieldFactory.getInstance().getFieldValue("stilton");
    final MvelConstraint constraint2 = new MvelConstraintTestUtil("type == \"stilton\"", field, extractor);
    pattern2.addConstraint(constraint2);
    rule2.addPattern(pattern2);
    rule2.setConsequence(new Consequence() {

        private static final long serialVersionUID = 510l;

        public void evaluate(final KnowledgeHelper knowledgeHelper, final WorkingMemory workingMemory) throws Exception {
        }

        public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
        }

        public void writeExternal(ObjectOutput out) throws IOException {
        }

        public String getName() {
            return "default";
        }
    });
    pkg = new KnowledgePackageImpl("org.drools.test1");
    pkg.addRule(rule1);
    pkg.addRule(rule2);
}

Example 24 with WorkingMemory

use of org.drools.core.WorkingMemory in project drools by kiegroup.

the class AgendaEventSupportTest method testAgendaEventListener.

// public void testIsSerializable() {
// assertTrue( Serializable.class.isAssignableFrom( AgendaEventSupport.class ) );
// }
@Test
@Ignore
public void testAgendaEventListener() throws Exception {
    InternalKnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
    // create a simple package with one rule to test the events
    InternalKnowledgePackage pkg = new KnowledgePackageImpl("org.drools.test");
    final RuleImpl rule = new RuleImpl("test1");
    rule.setEager(true);
    rule.setAgendaGroup("test group");
    final ClassObjectType cheeseObjectType = new ClassObjectType(Cheese.class);
    final Pattern pattern = new Pattern(0, cheeseObjectType);
    pkg.setClassFieldAccessorCache(new ClassFieldAccessorCache(Thread.currentThread().getContextClassLoader()));
    pkg.getClassFieldAccessorStore().setEagerWire(true);
    final ClassFieldReader extractor = pkg.getClassFieldAccessorStore().getReader(Cheese.class, "type");
    final FieldValue field = FieldFactory.getInstance().getFieldValue("cheddar");
    final MvelConstraint constraint = new MvelConstraintTestUtil("type == \"cheddar\"", field, extractor);
    pattern.addConstraint(constraint);
    rule.addPattern(pattern);
    rule.setConsequence(new Consequence() {

        public void evaluate(final KnowledgeHelper knowledgeHelper, final WorkingMemory workingMemory) throws Exception {
        }

        public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
        }

        public void writeExternal(ObjectOutput out) throws IOException {
        }

        public String getName() {
            // TODO Auto-generated method stub
            return null;
        }
    });
    pkg.addRule(rule);
    kbase.addPackages(Collections.singleton(pkg));
    // create a new working memory and add an AgendaEventListener
    KieSession ksession = kbase.newKieSession();
    final List agendaList = new ArrayList();
    final AgendaEventListener agendaEventListener = new AgendaEventListener() {

        public void matchCancelled(MatchCancelledEvent event) {
            assertNotNull(event.getKieRuntime());
            agendaList.add(event);
        }

        public void matchCreated(MatchCreatedEvent event) {
            assertNotNull(event.getKieRuntime());
            agendaList.add(event);
        }

        public void afterMatchFired(AfterMatchFiredEvent event) {
            assertNotNull(event.getKieRuntime());
            agendaList.add(event);
        }

        public void agendaGroupPopped(AgendaGroupPoppedEvent event) {
            assertNotNull(event.getKieRuntime());
            agendaList.add(event);
        }

        public void agendaGroupPushed(AgendaGroupPushedEvent event) {
            assertNotNull(event.getKieRuntime());
            agendaList.add(event);
        }

        public void beforeMatchFired(BeforeMatchFiredEvent event) {
            assertNotNull(event.getKieRuntime());
            agendaList.add(event);
        }

        public void beforeRuleFlowGroupActivated(RuleFlowGroupActivatedEvent event) {
            assertNotNull(event.getKieRuntime());
            agendaList.add(event);
        }

        public void afterRuleFlowGroupActivated(RuleFlowGroupActivatedEvent event) {
            assertNotNull(event.getKieRuntime());
            agendaList.add(event);
        }

        public void beforeRuleFlowGroupDeactivated(RuleFlowGroupDeactivatedEvent event) {
            assertNotNull(event.getKieRuntime());
            agendaList.add(event);
        }

        public void afterRuleFlowGroupDeactivated(RuleFlowGroupDeactivatedEvent event) {
            assertNotNull(event.getKieRuntime());
            agendaList.add(event);
        }
    };
    ksession.addEventListener(agendaEventListener);
    assertEquals(1, ksession.getAgendaEventListeners().size());
    // assert the cheese fact
    final Cheese cheddar = new Cheese("cheddar", 15);
    FactHandle cheddarHandle = ksession.insert(cheddar);
    InternalAgenda agenda = (InternalAgenda) ksession.getAgenda();
    agenda.evaluateEagerList();
    // should be one MatchCreatedEvent
    assertEquals(1, agendaList.size());
    MatchCreatedEvent createdEvent = (MatchCreatedEvent) agendaList.get(0);
    assertSame(cheddarHandle, createdEvent.getMatch().getFactHandles().toArray()[0]);
    // clear the agenda to check CLEAR events occur
    ksession.getAgenda().clear();
    MatchCancelledEvent cancelledEvent = (MatchCancelledEvent) agendaList.get(1);
    assertEquals(MatchCancelledCause.CLEAR, cancelledEvent.getCause());
    agendaList.clear();
    // update results in an MatchCreatedEvent
    cheddar.setPrice(14);
    ksession.update(cheddarHandle, cheddar);
    agenda.evaluateEagerList();
    assertEquals(1, agendaList.size());
    createdEvent = (MatchCreatedEvent) agendaList.get(0);
    assertSame(cheddarHandle, createdEvent.getMatch().getFactHandles().toArray()[0]);
    agendaList.clear();
    // update should not result in cancelation+activation events
    cheddar.setPrice(14);
    ksession.update(cheddarHandle, cheddar);
    assertEquals(0, agendaList.size());
    // cancelledEvent = (ActivationCancelledEvent) agendaList.get( 0 );
    // assertEquals( ActivationCancelledCause.WME_MODIFY, cancelledEvent.getCause() );
    // assertSame( cheddarHandle,
    // cancelledEvent.getActivation().toFactHandles().toArray()[0] );
    // createdEvent = (ActivationCreatedEvent) agendaList.get( 1 );
    // assertSame( cheddarHandle,
    // createdEvent.getActivation().toFactHandles().toArray()[0] );
    // agendaList.clear();
    // retract results in a ActivationCancelledEvent, note the object is not resolveable now as it no longer exists
    ksession.retract(cheddarHandle);
    assertEquals(1, agendaList.size());
    cancelledEvent = (MatchCancelledEvent) agendaList.get(0);
    // invalidated handles no longer set the object to null
    assertNotNull(((InternalFactHandle) cancelledEvent.getMatch().getFactHandles().toArray()[0]).getObject());
    // re-assert the fact so we can test the agenda group events
    cheddarHandle = ksession.insert(cheddar);
    agendaList.clear();
    // setFocus results in an AgendaGroupPushedEvent
    ksession.getAgenda().getAgendaGroup("test group").setFocus();
    assertEquals(1, agendaList.size());
    final AgendaGroupPushedEvent pushedEvent = (AgendaGroupPushedEvent) agendaList.get(0);
    assertEquals("test group", pushedEvent.getAgendaGroup().getName());
    agendaList.clear();
    // fireAllRules results in a BeforeActivationFiredEvent and an AfterActivationFiredEvent
    // the AgendaGroup becomes empty, which results in a popped event.
    ksession.fireAllRules();
    assertEquals(3, agendaList.size());
    final BeforeMatchFiredEvent beforeEvent = (BeforeMatchFiredEvent) agendaList.get(0);
    assertSame(cheddarHandle, beforeEvent.getMatch().getFactHandles().toArray()[0]);
    final AfterMatchFiredEvent afterEvent = (AfterMatchFiredEvent) agendaList.get(1);
    assertSame(cheddarHandle, afterEvent.getMatch().getFactHandles().toArray()[0]);
    final AgendaGroupPoppedEvent poppedEvent = (AgendaGroupPoppedEvent) agendaList.get(2);
    assertEquals("test group", poppedEvent.getAgendaGroup().getName());
}

Example 25 with WorkingMemory

use of org.drools.core.WorkingMemory in project drools by kiegroup.

the class BaseMannersTest method getAssignFirstSeatRule.

/**
 * <pre>
 *    rule assignFirstSeat() {
 *        Context context;
 *        Guest guest;
 *        Count count;
 *        when {
 *            context : Context( state == Context.START_UP )
 *            guest : Guest()
 *            count : Count()
 *        } then {
 *            String guestName = guest.getName();
 *            drools.assert( new Seating( count.getValue(), 1, true, 1, guestName, 1, guestName) );
 *            drools.assert( new Path( count.getValue(), 1, guestName ) );
 *            count.setCount(  count.getValue() + 1 );
 *
 *            System.err.println( &quot;seat 1 &quot; + guest.getName() + &quot; );
 *
 *            context.setPath( Context.ASSIGN_SEATS );
 *        }
 *    }
 * </pre>
 *
 * @return
 * @throws InvalidRuleException
 */
private RuleImpl getAssignFirstSeatRule() throws InvalidRuleException {
    final RuleImpl rule = new RuleImpl("assignFirstSeat");
    // -----------
    // context : Context( state == Context.START_UP )
    // -----------
    final Pattern contextPattern = new Pattern(0, this.contextType, "context");
    contextPattern.addConstraint(getLiteralConstraint(contextPattern, "state", Context.START_UP));
    rule.addPattern(contextPattern);
    final Declaration contextDeclaration = rule.getDeclaration("context");
    // -----------
    // guest: Guest()
    // -----------
    final Pattern guestPattern = new Pattern(1, this.guestType, "guest");
    rule.addPattern(guestPattern);
    final Declaration guestDeclaration = rule.getDeclaration("guest");
    // ------------
    // count : Count()
    // ------------
    final Pattern countPattern = new Pattern(2, this.countType, "count");
    rule.addPattern(countPattern);
    final Declaration countDeclaration = rule.getDeclaration("count");
    final Consequence consequence = new Consequence() {

        public void evaluate(KnowledgeHelper drools, WorkingMemory workingMemory) throws ConsequenceException {
            try {
                RuleImpl rule = drools.getRule();
                LeftTuple tuple = (LeftTuple) drools.getTuple();
                Guest guest = (Guest) drools.get(guestDeclaration);
                Context context = (Context) drools.get(contextDeclaration);
                Count count = (Count) drools.get(countDeclaration);
                String guestName = guest.getName();
                Seating seating = new Seating(count.getValue(), 0, true, 1, guestName, 1, guestName);
                drools.insert(seating);
                Path path = new Path(count.getValue(), 1, guestName);
                drools.insert(path);
                count.setValue(count.getValue());
                drools.update(tuple.get(countDeclaration), count);
                context.setState(Context.ASSIGN_SEATS);
                // drools.update( tuple.get( contextDeclaration ),
                // context );
                drools.update(tuple.get(contextDeclaration));
            // System.err.println( "assign first seat :  " + seating + " : " + path );
            } catch (Exception e) {
                e.printStackTrace();
                throw new ConsequenceException(e);
            }
        }

        public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
        }

        public void writeExternal(ObjectOutput out) throws IOException {
        }

        public String getName() {
            return "default";
        }
    };
    rule.setConsequence(consequence);
    return rule;
}