Examples with DrlxParseSuccess org.drools.modelcompiler.builder.generator.drlxparse.DrlxParseSuccess used on opensource projects

Example 11 with DrlxParseSuccess

use of org.drools.modelcompiler.builder.generator.drlxparse.DrlxParseSuccess in project drools by kiegroup.

the class PatternDSL method addImplicitCastExpr.

private void addImplicitCastExpr(ConstraintParser constraintParser, String patternIdentifier, List<PatternConstraintParseResult> patternConstraintParseResults) {
    final boolean hasInstanceOfExpr = patternConstraintParseResults.stream().anyMatch(r -> r.getDrlxParseResult().acceptWithReturnValue(new ParseResultVisitor<Boolean>() {

        @Override
        public Boolean onSuccess(DrlxParseSuccess t) {
            Expression expr = t.getExpr();
            return expr != null && expr.isInstanceOfExpr();
        }

        @Override
        public Boolean onFail(DrlxParseFail failure) {
            return false;
        }
    }));
    final Optional<Expression> implicitCastExpression = patternConstraintParseResults.stream().flatMap(r -> optionalToStream(r.getDrlxParseResult().acceptWithReturnValue(new ParseResultVisitor<Optional<Expression>>() {

        @Override
        public Optional<Expression> onSuccess(DrlxParseSuccess t) {
            return t.getImplicitCastExpression();
        }

        @Override
        public Optional<Expression> onFail(DrlxParseFail failure) {
            return Optional.empty();
        }
    }))).findFirst();
    implicitCastExpression.ifPresent(ce -> {
        if (!hasInstanceOfExpr) {
            String instanceOfExpression = printNode(ce);
            DrlxParseResult instanceOfExpressionParsed = constraintParser.drlxParse(patternType, patternIdentifier, instanceOfExpression, false);
            patternConstraintParseResults.add(0, new PatternConstraintParseResult(instanceOfExpression, patternIdentifier, instanceOfExpressionParsed));
        }
    });
}