Examples with RuleAgendaItem org.drools.core.phreak.RuleAgendaItem used on opensource projects

Example 1 with RuleAgendaItem

use of org.drools.core.phreak.RuleAgendaItem in project drools by kiegroup.

the class DefaultAgenda method clearAndCancelAgendaGroup.

/*
     * (non-Javadoc)
     *
     * @see org.kie.common.AgendaI#clearAgendaGroup(org.kie.common.AgendaGroupImpl)
     */
public void clearAndCancelAgendaGroup(InternalAgendaGroup agendaGroup) {
    // enforce materialization of all activations of this group before removing them
    for (Activation activation : agendaGroup.getActivations()) {
        ((RuleAgendaItem) activation).getRuleExecutor().reEvaluateNetwork(this);
    }
    final EventSupport eventsupport = this.workingMemory;
    agendaGroup.setClearedForRecency(this.workingMemory.getFactHandleFactory().getRecency());
    // this is thread safe for BinaryHeapQueue
    // Binary Heap locks while it returns the array and reset's it's own internal array. Lock is released afer getAndClear()
    List<RuleAgendaItem> lazyItems = new ArrayList<RuleAgendaItem>();
    for (Activation aQueueable : agendaGroup.getAndClear()) {
        final AgendaItem item = (AgendaItem) aQueueable;
        if (item.isRuleAgendaItem()) {
            lazyItems.add((RuleAgendaItem) item);
            ((RuleAgendaItem) item).getRuleExecutor().cancel(workingMemory, eventsupport);
            continue;
        }
        // this must be set false before removal from the activationGroup.
        // Otherwise the activationGroup will also try to cancel the Actvation
        // Also modify won't work properly
        item.setQueued(false);
        if (item.getActivationGroupNode() != null) {
            item.getActivationGroupNode().getActivationGroup().removeActivation(item);
        }
        eventsupport.getAgendaEventSupport().fireActivationCancelled(item, this.workingMemory, MatchCancelledCause.CLEAR);
    }
    // restore lazy items
    for (RuleAgendaItem lazyItem : lazyItems) {
        agendaGroup.add(lazyItem);
    }
}

Example 2 with RuleAgendaItem

use of org.drools.core.phreak.RuleAgendaItem in project drools by kiegroup.

the class DefaultAgenda method createRuleAgendaItem.

public RuleAgendaItem createRuleAgendaItem(final int salience, final PathMemory rs, final TerminalNode rtn) {
    String agendaGroupName = rtn.getRule().getAgendaGroup();
    String ruleFlowGroupName = rtn.getRule().getRuleFlowGroup();
    RuleAgendaItem lazyAgendaItem;
    if (!StringUtils.isEmpty(ruleFlowGroupName)) {
        lazyAgendaItem = new RuleAgendaItem(activationCounter++, null, salience, null, rs, rtn, isDeclarativeAgenda(), (InternalAgendaGroup) getAgendaGroup(ruleFlowGroupName));
    } else {
        lazyAgendaItem = new RuleAgendaItem(activationCounter++, null, salience, null, rs, rtn, isDeclarativeAgenda(), (InternalAgendaGroup) getRuleFlowGroup(agendaGroupName));
    }
    return lazyAgendaItem;
}

Example 3 with RuleAgendaItem

use of org.drools.core.phreak.RuleAgendaItem in project drools by kiegroup.

the class DefaultKnowledgeHelper method cancelRemainingPreviousLogicalDependencies.

public void cancelRemainingPreviousLogicalDependencies() {
    if (this.previousJustified != null) {
        for (LogicalDependency<T> dep = this.previousJustified.getFirst(); dep != null; dep = dep.getNext()) {
            TruthMaintenanceSystemHelper.removeLogicalDependency(dep, activation.getPropagationContext());
        }
    }
    if (this.previousBlocked != null) {
        for (LogicalDependency<SimpleMode> dep = this.previousBlocked.getFirst(); dep != null; ) {
            LogicalDependency<SimpleMode> tmp = dep.getNext();
            this.previousBlocked.remove(dep);
            AgendaItem justified = (AgendaItem) dep.getJustified();
            justified.getBlockers().remove((SimpleMode) dep.getMode());
            if (justified.getBlockers().isEmpty()) {
                RuleAgendaItem ruleAgendaItem = justified.getRuleAgendaItem();
                workingMemory.getAgenda().stageLeftTuple(ruleAgendaItem, justified);
            }
            dep = tmp;
        }
    }
}

Example 4 with RuleAgendaItem

use of org.drools.core.phreak.RuleAgendaItem in project drools by kiegroup.

the class ExecutionFlowControlTest method testLockOnActiveWithModify.

@Test
public void testLockOnActiveWithModify() throws Exception {
    KieBase kbase = loadKnowledgeBase("test_LockOnActiveWithUpdate.drl");
    KieSession ksession = kbase.newKieSession();
    final List list = new ArrayList();
    ksession.setGlobal("list", list);
    final Cheese brie = new Cheese("brie", 13);
    final Person bob = new Person("bob");
    bob.setCheese(brie);
    final Person mic = new Person("mic");
    mic.setCheese(brie);
    final Person mark = new Person("mark");
    mark.setCheese(brie);
    final FactHandle brieHandle = (FactHandle) ksession.insert(brie);
    ksession.insert(bob);
    ksession.insert(mic);
    ksession.insert(mark);
    InternalWorkingMemory wm = (InternalWorkingMemory) ksession;
    wm.flushPropagations();
    final InternalAgenda agenda = (InternalAgenda) ksession.getAgenda();
    final AgendaGroup group1 = agenda.getAgendaGroup("group1");
    agenda.setFocus(group1);
    assertEquals(1, group1.size());
    RuleAgendaItem ruleItem1 = (RuleAgendaItem) group1.getActivations()[0];
    ruleItem1.getRuleExecutor().evaluateNetwork(wm.getAgenda());
    assertEquals(3, ruleItem1.getRuleExecutor().getLeftTupleList().size());
    agenda.fireNextItem(null, 0, 0);
    assertEquals(1, group1.size());
    assertEquals(2, ruleItem1.getRuleExecutor().getLeftTupleList().size());
    ksession.update(brieHandle, brie);
    assertEquals(1, group1.size());
    ruleItem1.getRuleExecutor().evaluateNetwork(wm.getAgenda());
    assertEquals(2, ruleItem1.getRuleExecutor().getLeftTupleList().size());
    AgendaGroup group2 = agenda.getAgendaGroup("group2");
    agenda.setFocus(group2);
    assertEquals(1, group2.size());
    RuleAgendaItem ruleItem2 = (RuleAgendaItem) group2.getActivations()[0];
    ruleItem2.getRuleExecutor().evaluateNetwork(wm.getAgenda());
    assertEquals(3, ruleItem2.getRuleExecutor().getLeftTupleList().size());
    agenda.fireNextItem(null, 0, 0);
    assertEquals(1, group2.size());
    assertEquals(2, ruleItem2.getRuleExecutor().getLeftTupleList().size());
    ksession.update(brieHandle, brie);
    assertEquals(1, group2.size());
    assertEquals(2, ruleItem2.getRuleExecutor().getLeftTupleList().size());
}

Example 5 with RuleAgendaItem

use of org.drools.core.phreak.RuleAgendaItem in project drools by kiegroup.

the class LinkingTest method testSubnetwork.

@Test
public void testSubnetwork() throws Exception {
    String str = "";
    str += "package org.kie \n";
    str += "import " + A.class.getCanonicalName() + "\n";
    str += "import " + B.class.getCanonicalName() + "\n";
    str += "import " + C.class.getCanonicalName() + "\n";
    str += "import " + D.class.getCanonicalName() + "\n";
    str += "import " + E.class.getCanonicalName() + "\n";
    str += "import " + F.class.getCanonicalName() + "\n";
    str += "import " + G.class.getCanonicalName() + "\n";
    str += "global java.util.List list \n";
    str += "rule rule1 when \n";
    str += "   $a : A() \n";
    str += "   exists ( B() and C() ) \n";
    str += "   $e : D() \n";
    str += "then \n";
    str += "  list.add( 'x' ); \n";
    str += "end \n";
    KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
    kbuilder.add(ResourceFactory.newByteArrayResource(str.getBytes()), ResourceType.DRL);
    assertFalse(kbuilder.getErrors().toString(), kbuilder.hasErrors());
    InternalKnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
    kbase.addPackages(kbuilder.getKnowledgePackages());
    ObjectTypeNode aotn = getObjectTypeNode(kbase, A.class);
    ObjectTypeNode botn = getObjectTypeNode(kbase, A.class);
    ObjectTypeNode cotn = getObjectTypeNode(kbase, A.class);
    InternalWorkingMemory wm = ((StatefulKnowledgeSessionImpl) kbase.newKieSession());
    List list = new ArrayList();
    wm.setGlobal("list", list);
    wm.insert(new A());
    wm.insert(new B());
    for (int i = 0; i < 28; i++) {
        wm.insert(new C());
    }
    wm.insert(new D());
    wm.flushPropagations();
    InternalAgenda agenda = (InternalAgenda) wm.getAgenda();
    InternalAgendaGroup group = (InternalAgendaGroup) agenda.getNextFocus();
    AgendaItem item = (AgendaItem) group.remove();
    RuleExecutor ruleExecutor = ((RuleAgendaItem) item).getRuleExecutor();
    int count = ruleExecutor.evaluateNetworkAndFire(wm, null, 0, -1);
    // assertEquals(3, count );
    wm.fireAllRules();
    assertEquals(1, list.size());
    wm.fireAllRules();
    // check it doesn't double fire
    assertEquals(1, list.size());
}