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

Example 6 with BusinessKnowledgeModelNode

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

the class DMNCompilerImpl method linkRequirements.

public void linkRequirements(DMNModelImpl model, DMNBaseNode node) {
    for (InformationRequirement ir : node.getInformationRequirement()) {
        if (ir.getRequiredInput() != null) {
            String id = getId(ir.getRequiredInput());
            InputDataNode input = model.getInputById(id);
            if (input != null) {
                node.addDependency(input.getName(), input);
            } else {
                MsgUtil.reportMessage(logger, DMNMessage.Severity.ERROR, ir.getRequiredInput(), model, null, null, Msg.REQ_INPUT_NOT_FOUND_FOR_NODE, id, node.getName());
            }
        } else if (ir.getRequiredDecision() != null) {
            String id = getId(ir.getRequiredDecision());
            DecisionNode dn = model.getDecisionById(id);
            if (dn != null) {
                node.addDependency(dn.getName(), dn);
            } else {
                MsgUtil.reportMessage(logger, DMNMessage.Severity.ERROR, ir.getRequiredDecision(), model, null, null, Msg.REQ_DECISION_NOT_FOUND_FOR_NODE, id, node.getName());
            }
        }
    }
    for (KnowledgeRequirement kr : node.getKnowledgeRequirement()) {
        if (kr.getRequiredKnowledge() != null) {
            String id = getId(kr.getRequiredKnowledge());
            BusinessKnowledgeModelNode bkmn = model.getBusinessKnowledgeModelById(id);
            if (bkmn != null) {
                node.addDependency(bkmn.getName(), bkmn);
            } else {
                MsgUtil.reportMessage(logger, DMNMessage.Severity.ERROR, kr.getRequiredKnowledge(), model, null, null, Msg.REQ_BKM_NOT_FOUND_FOR_NODE, id, node.getName());
            }
        }
    }
}

Example 7 with BusinessKnowledgeModelNode

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

the class DMNEvaluatorCompiler method compileContext.

private DMNExpressionEvaluator compileContext(DMNCompilerContext ctx, DMNModelImpl model, DMNBaseNode node, String contextName, Context expression) {
    Context ctxDef = expression;
    DMNContextEvaluator ctxEval = new DMNContextEvaluator(node.getName(), ctxDef);
    ctx.enterFrame();
    try {
        for (ContextEntry ce : ctxDef.getContextEntry()) {
            if (ce.getVariable() != null) {
                String entryName = ce.getVariable().getName();
                DMNCompilerHelper.checkVariableName(model, node.getSource(), entryName);
                DMNType entryType = compiler.resolveTypeRef(model, node, ce.getVariable(), ce.getVariable(), ce.getVariable().getTypeRef());
                // add context entry to the list of available variables for the following entries
                ctx.setVariable(entryName, entryType);
                DMNExpressionEvaluator evaluator = compileExpression(ctx, model, node, entryName, ce.getExpression());
                ctxEval.addEntry(entryName, entryType, evaluator, ce);
            } else {
                // if the variable is not defined, then it should be the last
                // entry in the context and the result of this context evaluation is the
                // result of this expression itself
                // TODO: if it is not the last entry, raise error message
                DMNType type = null;
                if (ctxDef.getParent() instanceof ContextEntry && ((ContextEntry) ctxDef.getParent()).getVariable() != null) {
                    ContextEntry parentEntry = (ContextEntry) ctxDef.getParent();
                    type = compiler.resolveTypeRef(model, node, parentEntry.getVariable(), parentEntry.getVariable(), parentEntry.getVariable().getTypeRef());
                } else if (node instanceof BusinessKnowledgeModelNode) {
                    type = ((BusinessKnowledgeModelNode) node).getResultType();
                } else if (node instanceof DecisionNode) {
                    type = ((DecisionNode) node).getResultType();
                }
                ctxEval.addEntry(DMNContextEvaluator.RESULT_ENTRY, type, compileExpression(ctx, model, node, contextName, ce.getExpression()), ce);
            }
        }
    } finally {
        ctx.exitFrame();
    }
    return ctxEval;
}

Example 8 with BusinessKnowledgeModelNode

use of org.kie.dmn.api.core.ast.BusinessKnowledgeModelNode 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;
    if (result.getContext().isDefined(decision.getName())) {
        // already resolved
        return true;
    } else {
        // check if the decision was already evaluated before and returned error
        DMNDecisionResult.DecisionEvaluationStatus status = result.getDecisionResultById(decision.getId()).getEvaluationStatus();
        if (FAILED == status || SKIPPED == status || EVALUATING == status) {
            return false;
        }
    }
    try {
        DMNRuntimeEventManagerUtils.fireBeforeEvaluateDecision(eventManager, decision, result);
        boolean missingInput = false;
        DMNDecisionResultImpl dr = (DMNDecisionResultImpl) result.getDecisionResultById(decision.getId());
        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), getIdentifier(dep), MsgUtil.clipString(result.getContext().get(dep.getName()).toString(), 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, getIdentifier(dep), e.getMessage());
            }
            if (!result.getContext().isDefined(dep.getName())) {
                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), getIdentifier(dep));
                        reportFailure(dr, message, DMNDecisionResult.DecisionEvaluationStatus.SKIPPED);
                    }
                } else if (dep instanceof BusinessKnowledgeModelNode) {
                    evaluateBKM(context, result, (BusinessKnowledgeModelNode) 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, getIdentifier(dep), getIdentifier(decision));
                    reportFailure(dr, message, DMNDecisionResult.DecisionEvaluationStatus.SKIPPED);
                }
            }
        }
        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);
    }
}