Examples with DecisionNodeImpl org.kie.dmn.core.ast.DecisionNodeImpl used on opensource projects

Example 16 with DecisionNodeImpl

use of org.kie.dmn.core.ast.DecisionNodeImpl in project drools by kiegroup.

the class DMNRuntimeTest method testCycleDetection.

@Test
public void testCycleDetection() {
    final Definitions defs = buildSimplifiedDefinitions("ns", "a", "b");
    final DecisionNodeImpl a = buildSimplifiedDecisionNode(defs, "a");
    final DecisionNodeImpl b = buildSimplifiedDecisionNode(defs, "b");
    a.addDependency("b", b);
    b.addDependency("a", b);
    final DMNModelImpl model = new DMNModelImpl(defs);
    model.setDefinitions(defs);
    model.addDecision(a);
    model.addDecision(b);
    final DMNRuntime runtime = DMNRuntimeUtil.createRuntime(this.getClass());
    final DMNResult result = runtime.evaluateAll(model, DMNFactory.newContext());
    assertTrue(result.hasErrors());
}

Example 17 with DecisionNodeImpl

use of org.kie.dmn.core.ast.DecisionNodeImpl in project drools by kiegroup.

the class MultiInstanceDecisionLogicTest method decision.

private DMNBaseNode decision(String id) {
    DecisionNodeImpl decision = mock(DecisionNodeImpl.class);
    doReturn(id).when(decision).getId();
    doReturn(decision).when(model).getDecisionById(id);
    return decision;
}

Example 18 with DecisionNodeImpl

use of org.kie.dmn.core.ast.DecisionNodeImpl in project drools by kiegroup.

the class DMNRuntimeImpl method evaluateDecision.

private boolean evaluateDecision(DMNContext context, DMNResultImpl result, DecisionNode d, boolean typeCheck) {
    DecisionNodeImpl decision = (DecisionNodeImpl) d;
    String decisionId = d.getModelNamespace().equals(result.getModel().getNamespace()) ? decision.getId() : decision.getModelNamespace() + "#" + decision.getId();
    if (isNodeValueDefined(result, decision, decision)) {
        // already resolved
        return true;
    } else {
        // check if the decision was already evaluated before and returned error
        DMNDecisionResult.DecisionEvaluationStatus status = Optional.ofNullable(result.getDecisionResultById(decisionId)).map(DMNDecisionResult::getEvaluationStatus).orElse(// it might be an imported Decision.
        DMNDecisionResult.DecisionEvaluationStatus.NOT_EVALUATED);
        if (FAILED == status || SKIPPED == status || EVALUATING == status) {
            return false;
        }
    }
    BeforeEvaluateDecisionEvent beforeEvaluateDecisionEvent = null;
    try {
        beforeEvaluateDecisionEvent = DMNRuntimeEventManagerUtils.fireBeforeEvaluateDecision(eventManager, decision, result);
        boolean missingInput = false;
        DMNDecisionResultImpl dr = (DMNDecisionResultImpl) result.getDecisionResultById(decisionId);
        if (dr == null) {
            // an imported Decision now evaluated, requires the creation of the decision result:
            String decisionResultName = d.getName();
            Optional<String> importAliasFor = ((DMNModelImpl) result.getModel()).getImportAliasFor(d.getModelNamespace(), d.getModelName());
            if (importAliasFor.isPresent()) {
                decisionResultName = importAliasFor.get() + "." + d.getName();
            }
            dr = new DMNDecisionResultImpl(decisionId, decisionResultName);
            if (importAliasFor.isPresent()) {
                // otherwise is a transitive, skipped and not to be added to the results:
                result.addDecisionResult(dr);
            }
        }
        dr.setEvaluationStatus(DMNDecisionResult.DecisionEvaluationStatus.EVALUATING);
        for (DMNNode dep : decision.getDependencies().values()) {
            try {
                if (typeCheck && !checkDependencyValueIsValid(dep, result)) {
                    missingInput = true;
                    DMNMessage message = MsgUtil.reportMessage(logger, DMNMessage.Severity.ERROR, ((DMNBaseNode) dep).getSource(), result, null, null, Msg.ERROR_EVAL_NODE_DEP_WRONG_TYPE, getIdentifier(decision), getDependencyIdentifier(decision, dep), MsgUtil.clipString(Objects.toString(result.getContext().get(dep.getName())), 50), ((DMNBaseNode) dep).getType());
                    reportFailure(dr, message, DMNDecisionResult.DecisionEvaluationStatus.SKIPPED);
                }
            } catch (Exception e) {
                MsgUtil.reportMessage(logger, DMNMessage.Severity.ERROR, ((DMNBaseNode) dep).getSource(), result, e, null, Msg.ERROR_CHECKING_ALLOWED_VALUES, getDependencyIdentifier(decision, dep), e.getMessage());
            }
            if (!isNodeValueDefined(result, decision, dep)) {
                boolean walkingIntoScope = walkIntoImportScope(result, decision, dep);
                if (dep instanceof DecisionNode) {
                    if (!evaluateDecision(context, result, (DecisionNode) dep, typeCheck)) {
                        missingInput = true;
                        DMNMessage message = MsgUtil.reportMessage(logger, DMNMessage.Severity.ERROR, decision.getSource(), result, null, null, Msg.UNABLE_TO_EVALUATE_DECISION_REQ_DEP, getIdentifier(decision), getDependencyIdentifier(decision, dep));
                        reportFailure(dr, message, DMNDecisionResult.DecisionEvaluationStatus.SKIPPED);
                    }
                } else if (dep instanceof BusinessKnowledgeModelNode) {
                    evaluateBKM(context, result, (BusinessKnowledgeModelNode) dep, typeCheck);
                } else if (dep instanceof DecisionServiceNode) {
                    evaluateDecisionService(context, result, (DecisionServiceNode) dep, typeCheck);
                } else {
                    missingInput = true;
                    DMNMessage message = MsgUtil.reportMessage(logger, DMNMessage.Severity.ERROR, decision.getSource(), result, null, null, Msg.REQ_DEP_NOT_FOUND_FOR_NODE, getDependencyIdentifier(decision, dep), getIdentifier(decision));
                    reportFailure(dr, message, DMNDecisionResult.DecisionEvaluationStatus.SKIPPED);
                }
                if (walkingIntoScope) {
                    result.getContext().popScope();
                }
            }
        }
        if (missingInput) {
            return false;
        }
        if (decision.getEvaluator() == null) {
            DMNMessage message = MsgUtil.reportMessage(logger, DMNMessage.Severity.WARN, decision.getSource(), result, null, null, Msg.MISSING_EXPRESSION_FOR_DECISION, getIdentifier(decision));
            reportFailure(dr, message, DMNDecisionResult.DecisionEvaluationStatus.SKIPPED);
            return false;
        }
        try {
            EvaluatorResult er = decision.getEvaluator().evaluate(this, result);
            if (er.getResultType() == EvaluatorResult.ResultType.SUCCESS) {
                Object value = er.getResult();
                if (!decision.getResultType().isCollection() && value instanceof Collection && ((Collection) value).size() == 1) {
                    // spec defines that "a=[a]", i.e., singleton collections should be treated as the single element
                    // and vice-versa
                    value = ((Collection) value).toArray()[0];
                }
                try {
                    if (typeCheck && !d.getResultType().isAssignableValue(value)) {
                        DMNMessage message = MsgUtil.reportMessage(logger, DMNMessage.Severity.ERROR, decision.getSource(), result, null, null, Msg.ERROR_EVAL_NODE_RESULT_WRONG_TYPE, getIdentifier(decision), decision.getResultType(), value);
                        reportFailure(dr, message, DMNDecisionResult.DecisionEvaluationStatus.FAILED);
                        return false;
                    }
                } catch (Exception e) {
                    MsgUtil.reportMessage(logger, DMNMessage.Severity.ERROR, decision.getSource(), result, e, null, Msg.ERROR_CHECKING_ALLOWED_VALUES, getIdentifier(decision), e.getMessage());
                    return false;
                }
                result.getContext().set(decision.getDecision().getVariable().getName(), value);
                dr.setResult(value);
                dr.setEvaluationStatus(DMNDecisionResult.DecisionEvaluationStatus.SUCCEEDED);
            } else {
                dr.setEvaluationStatus(DMNDecisionResult.DecisionEvaluationStatus.FAILED);
                return false;
            }
        } catch (Throwable t) {
            DMNMessage message = MsgUtil.reportMessage(logger, DMNMessage.Severity.ERROR, decision.getSource(), result, t, null, Msg.ERROR_EVAL_DECISION_NODE, getIdentifier(decision), t.getMessage());
            reportFailure(dr, message, DMNDecisionResult.DecisionEvaluationStatus.FAILED);
        }
        return true;
    } finally {
        DMNRuntimeEventManagerUtils.fireAfterEvaluateDecision(eventManager, decision, result, beforeEvaluateDecisionEvent);
    }
}

Example 19 with DecisionNodeImpl

use of org.kie.dmn.core.ast.DecisionNodeImpl in project drools by kiegroup.

the class DMNRuntimeTest method testCycleDetectionSelfReference.

@Test
public void testCycleDetectionSelfReference() {
    final Definitions defs = buildSimplifiedDefinitions("ns", "self");
    final DecisionNodeImpl decision = buildSimplifiedDecisionNode(defs, "self");
    decision.addDependency("self", decision);
    final DMNModelImpl model = new DMNModelImpl(defs);
    model.setDefinitions(defs);
    model.addDecision(decision);
    final DMNRuntime runtime = DMNRuntimeUtil.createRuntime(this.getClass());
    final DMNResult result = runtime.evaluateAll(model, DMNFactory.newContext());
    assertTrue(result.hasErrors());
}

Example 20 with DecisionNodeImpl

use of org.kie.dmn.core.ast.DecisionNodeImpl in project drools by kiegroup.

the class DMNCompilerImpl method detectCycles.

private void detectCycles(DMNModelImpl model) {
    /*
        Boolean.TRUE = node is either safe or already reported for having a cyclic dependency
        Boolean.FALSE = node is being checked at the moment
         */
    final Map<DecisionNodeImpl, Boolean> registry = new HashMap<>();
    for (DecisionNode decision : model.getDecisions()) {
        final DecisionNodeImpl decisionNode = (DecisionNodeImpl) decision;
        detectCycles(decisionNode, registry, model);
    }
}