Examples with GroupElement org.drools.core.rule.GroupElement used on opensource projects

Example 26 with GroupElement

use of org.drools.core.rule.GroupElement in project drools by kiegroup.

the class DeclarationScopeResolver method isDuplicated.

public boolean isDuplicated(RuleImpl rule, final String name, final String type) {
    if (this.globalMap.containsKey((name))) {
        return true;
    }
    for (int i = this.buildStack.size() - 1; i >= 0; i--) {
        final RuleConditionElement rce = buildStack.get(i);
        final Declaration declaration = rce.resolveDeclaration(name);
        if (declaration != null) {
            // if it is an OR and it is duplicated, we can stop looking for duplication now
            // as it is a separate logical branch
            boolean inOr = ((rce instanceof GroupElement) && ((GroupElement) rce).isOr());
            if (!inOr || type == null) {
                return !inOr;
            }
            return !declaration.getDeclarationClass().getName().equals(type);
        }
    }
    // look at parent rules
    if (rule != null && rule.getParent() != null) {
        // recursive algorithm for each parent
        // -> lhs.getInnerDeclarations()
        Declaration parentDeclaration = getExtendedDeclaration(rule.getParent(), name);
        return null != parentDeclaration;
    }
    return false;
}

Example 27 with GroupElement

use of org.drools.core.rule.GroupElement in project drools by kiegroup.

the class AccumulateBuilder method build.

/**
 * @inheritDoc
 */
public void build(final BuildContext context, final BuildUtils utils, final RuleConditionElement rce) {
    final Accumulate accumulate = (Accumulate) rce;
    boolean existSubNetwort = false;
    context.pushRuleComponent(accumulate);
    final List<BetaNodeFieldConstraint> resultBetaConstraints = context.getBetaconstraints();
    final List<AlphaNodeFieldConstraint> resultAlphaConstraints = context.getAlphaConstraints();
    RuleConditionElement source = accumulate.getSource();
    if (source instanceof GroupElement) {
        GroupElement ge = (GroupElement) source;
        if (ge.isAnd() && ge.getChildren().size() == 1) {
            source = ge.getChildren().get(0);
        }
    }
    // get builder for the pattern
    final ReteooComponentBuilder builder = utils.getBuilderFor(source);
    // save tuple source and current pattern offset for later if needed
    LeftTupleSource tupleSource = context.getTupleSource();
    final int currentPatternIndex = context.getCurrentPatternOffset();
    // builds the source pattern
    builder.build(context, utils, source);
    // if object source is null, then we need to adapt tuple source into a subnetwork
    if (context.getObjectSource() == null) {
        // attach right input adapter node to convert tuple source into an object source
        RightInputAdapterNode riaNode = context.getComponentFactory().getNodeFactoryService().buildRightInputNode(context.getNextId(), context.getTupleSource(), tupleSource, context);
        // attach right input adapter node to convert tuple source into an object source
        context.setObjectSource(utils.attachNode(context, riaNode));
        // restore tuple source from before the start of the sub network
        context.setTupleSource(tupleSource);
        // create a tuple start equals constraint and set it in the context
        final TupleStartEqualsConstraint constraint = TupleStartEqualsConstraint.getInstance();
        final List<BetaNodeFieldConstraint> betaConstraints = new ArrayList<BetaNodeFieldConstraint>();
        betaConstraints.add(constraint);
        context.setBetaconstraints(betaConstraints);
        existSubNetwort = true;
    }
    NodeFactory nfactory = context.getComponentFactory().getNodeFactoryService();
    final BetaConstraints resultsBinder = utils.createBetaNodeConstraint(context, resultBetaConstraints, true);
    final BetaConstraints sourceBinder = utils.createBetaNodeConstraint(context, context.getBetaconstraints(), false);
    AccumulateNode accNode = nfactory.buildAccumulateNode(context.getNextId(), context.getTupleSource(), context.getObjectSource(), resultAlphaConstraints.toArray(new AlphaNodeFieldConstraint[resultAlphaConstraints.size()]), sourceBinder, resultsBinder, accumulate, existSubNetwort, context);
    context.setTupleSource(utils.attachNode(context, accNode));
    // source pattern was bound, so nulling context
    context.setObjectSource(null);
    context.setCurrentPatternOffset(currentPatternIndex);
    context.popRuleComponent();
}

Example 28 with GroupElement

use of org.drools.core.rule.GroupElement in project drools by kiegroup.

the class RuleBuilderTest method testBuildBigIntegerLiteralConstraint.

@Test
public void testBuildBigIntegerLiteralConstraint() throws Exception {
    final PackageDescr pkgDescr = new PackageDescr("org.drools");
    final RuleDescr ruleDescr = new RuleDescr("Test Rule");
    AndDescr andDescr = new AndDescr();
    PatternDescr patDescr = new PatternDescr("java.math.BigInteger", "$bd");
    ExprConstraintDescr fcd = new ExprConstraintDescr("this==10");
    patDescr.addConstraint(fcd);
    andDescr.addDescr(patDescr);
    ruleDescr.setLhs(andDescr);
    ruleDescr.setConsequence("");
    pkgDescr.addRule(ruleDescr);
    final KnowledgeBuilderImpl kBuilder = new KnowledgeBuilderImpl();
    kBuilder.addPackage(pkgDescr);
    assertTrue(kBuilder.getErrors().toString(), kBuilder.getErrors().isEmpty());
    final RuleImpl rule = kBuilder.getPackages()[0].getRule("Test Rule");
    final GroupElement and = rule.getLhs();
    final Pattern pat = (Pattern) and.getChildren().get(0);
    if (pat.getConstraints().get(0) instanceof MvelConstraint) {
        final MvelConstraint fc = (MvelConstraint) pat.getConstraints().get(0);
        assertTrue("Wrong class. Expected java.math.BigInteger. Found: " + fc.getField().getValue().getClass(), fc.getField().getValue() instanceof BigInteger);
    }
}

Example 29 with GroupElement

use of org.drools.core.rule.GroupElement in project drools by kiegroup.

the class DescrBuilderTest method testDumperFromPkg.

@Test
public void testDumperFromPkg() {
    // DROOLS-109
    PackageDescr pkg = DescrFactory.newPackage().name("org.test").newRule().name("org.test").lhs().and().or().pattern().id("$x", false).type("Integer").constraint("this > 10").end().pattern().id("$x", false).type("Integer").constraint("this < 20").end().end().pattern().type("Integer").constraint("this == $x").constraint("this == 42").end().end().end().rhs("").end().end().getDescr();
    String drl = new DrlDumper().dump(pkg);
    System.out.println(drl);
    KnowledgeBuilderImpl knowledgeBuilder = (KnowledgeBuilderImpl) KnowledgeBuilderFactory.newKnowledgeBuilder();
    knowledgeBuilder.add(new ByteArrayResource(drl.getBytes()), ResourceType.DRL);
    System.err.println(knowledgeBuilder.getErrors());
    assertFalse(knowledgeBuilder.getErrors().toString(), knowledgeBuilder.hasErrors());
    InternalKnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
    kbase.addPackages(knowledgeBuilder.getKnowledgePackages());
    KieSession knowledgeSession = kbase.newKieSession();
    KiePackage rebuiltPkg = knowledgeBuilder.getPackage("org.test");
    org.kie.api.definition.rule.Rule rule = rebuiltPkg.getRules().iterator().next();
    RuleImpl r = ((RuleImpl) rule);
    assertEquals(2, r.getLhs().getChildren().size());
    Iterator<RuleConditionElement> iter = r.getLhs().getChildren().iterator();
    RuleConditionElement arg1 = iter.next();
    assertTrue(arg1 instanceof GroupElement && ((GroupElement) arg1).getType() == GroupElement.Type.OR);
    assertEquals(2, ((GroupElement) arg1).getChildren().size());
    RuleConditionElement arg2 = iter.next();
    assertTrue(arg2 instanceof Pattern);
}