Examples with PatternDescr org.drools.drl.ast.descr.PatternDescr used on opensource projects

Example 66 with PatternDescr

use of org.drools.drl.ast.descr.PatternDescr in project drools by kiegroup.

the class FromHandler method end.

public Object end(final String uri, final String localName, final ExtensibleXmlParser parser) throws SAXException {
    final Element element = parser.endElementBuilder();
    final FromDescr fromDescr = (FromDescr) parser.getCurrent();
    Object parent = parser.getParent();
    final PatternDescr patternDescr = (PatternDescr) parent;
    final ConditionalElementDescr parentDescr = (ConditionalElementDescr) parser.getParent(1);
    if (element.getElementsByTagName("expression").getLength() > 0) {
        patternDescr.setSource(fromDescr);
    }
    return fromDescr;
}

Example 67 with PatternDescr

use of org.drools.drl.ast.descr.PatternDescr in project drools by kiegroup.

the class ExprConstraintHandler method end.

public Object end(final String uri, final String localName, final ExtensibleXmlParser parser) throws SAXException {
    final Element element = parser.endElementBuilder();
    final String expression = ((org.w3c.dom.Text) element.getChildNodes().item(0)).getWholeText();
    emptyContentCheck(localName, expression, parser);
    PatternDescr p = (PatternDescr) parser.getParent();
    ExprConstraintDescr descr = new ExprConstraintDescr(expression);
    p.getConstraint().addDescr(descr);
    return descr;
}

Example 68 with PatternDescr

use of org.drools.drl.ast.descr.PatternDescr in project drools by kiegroup.

the class CollectHandler method end.

public Object end(final String uri, final String localName, final ExtensibleXmlParser parser) throws SAXException {
    final Element element = parser.endElementBuilder();
    final CollectDescr collectDescr = (CollectDescr) parser.getCurrent();
    final Object parent = parser.getParent();
    if (parent.getClass().getName().equals(FromDescr.class.getName())) {
        final PatternDescr resultPattern = (PatternDescr) parser.getParent(1);
        resultPattern.setSource(collectDescr);
    } else if (parent instanceof ConditionalElementDescr) {
        final ConditionalElementDescr parentDescr = (ConditionalElementDescr) parent;
        parentDescr.addDescr(collectDescr);
    }
    return collectDescr;
}

Example 69 with PatternDescr

use of org.drools.drl.ast.descr.PatternDescr in project drools by kiegroup.

the class RuleBuilder method getLhsForRuleUnit.

private static AndDescr getLhsForRuleUnit(RuleImpl rule, AndDescr lhs) {
    if (rule.hasRuleUnit()) {
        PatternDescr unitPattern = new PatternDescr(rule.getRuleUnitClassName(), RULE_UNIT_DECLARATION);
        unitPattern.setSource(EntryPointDescr.RULE_UNIT_ENTRY_POINT_DESCR);
        unitPattern.setResource(rule.getResource());
        lhs.getDescrs().add(0, unitPattern);
    }
    return lhs;
}

Example 70 with PatternDescr

use of org.drools.drl.ast.descr.PatternDescr in project drools by kiegroup.

the class AccumulateVisitor method binaryExprParameter.

private Optional<NewBinding> binaryExprParameter(PatternDescr basePattern, AccumulateDescr.AccumulateFunctionCallDescr function, MethodCallExpr functionDSL, String bindingId, String accumulateFunctionParameterStr) {
    final DrlxParseResult parseResult = ConstraintParser.defaultConstraintParser(context, packageModel).drlxParse(Object.class, bindingId, accumulateFunctionParameterStr);
    Optional<NewBinding> optNewBinding = parseResult.acceptWithReturnValue(new ParseResultVisitor<Optional<NewBinding>>() {

        @Override
        public Optional<NewBinding> onSuccess(DrlxParseSuccess drlxParseResult) {
            SingleDrlxParseSuccess singleResult = (SingleDrlxParseSuccess) drlxParseResult;
            Class<?> exprRawClass = singleResult.getExprRawClass();
            AccumulateFunction accumulateFunction = getAccumulateFunction(function, exprRawClass);
            validateAccFunctionTypeAgainstPatternType(context, basePattern, accumulateFunction);
            final String bindExpressionVariable = context.getExprId(accumulateFunction.getResultType(), singleResult.getLeft().toString());
            singleResult.setExprBinding(bindExpressionVariable);
            context.addDeclarationReplacing(new DeclarationSpec(singleResult.getPatternBinding(), exprRawClass));
            context.getExpressions().forEach(expression -> replaceTypeInExprLambda(bindingId, exprRawClass, expression));
            functionDSL.addArgument(createAccSupplierExpr(accumulateFunction));
            final MethodCallExpr newBindingFromBinary = AccumulateVisitor.this.buildBinding(bindExpressionVariable, singleResult.getUsedDeclarations(), singleResult.getExpr());
            context.addDeclarationReplacing(new DeclarationSpec(bindExpressionVariable, exprRawClass));
            functionDSL.addArgument(context.getVarExpr(bindExpressionVariable));
            return Optional.of(new NewBinding(Collections.emptyList(), newBindingFromBinary));
        }

        @Override
        public Optional<NewBinding> onFail(DrlxParseFail failure) {
            return Optional.empty();
        }
    });
    return optNewBinding;
}