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

Example 6 with DecisionServiceNodeImpl

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

the class DMNCompilerImpl method processDrgElements.

private void processDrgElements(DMNCompilerContext ctx, DMNModelImpl model, Definitions dmndefs) {
    for (DRGElement e : dmndefs.getDrgElement()) {
        boolean foundIt = false;
        for (DRGElementCompiler dc : drgCompilers) {
            if (dc.accept(e)) {
                foundIt = true;
                dc.compileNode(e, this, model);
                continue;
            }
        }
        if (!foundIt) {
            MsgUtil.reportMessage(logger, DMNMessage.Severity.ERROR, e, model, null, null, Msg.UNSUPPORTED_ELEMENT, e.getClass().getSimpleName(), e.getId());
        }
    }
    // in DMN v1.1 the DecisionService is not on the DRGElement but as an extension
    if (dmndefs.getExtensionElements() != null) {
        List<DecisionServices> decisionServices = dmndefs.getExtensionElements().getAny().stream().filter(DecisionServices.class::isInstance).map(DecisionServices.class::cast).collect(Collectors.toList());
        for (DecisionServices dss : decisionServices) {
            for (DecisionService ds : dss.getDecisionService()) {
                // compatibility with DMN v1.1, create Decision Service's variable:
                if (ds.getVariable() == null) {
                    InformationItem variable = new TInformationItem();
                    variable.setId(UUID.randomUUID().toString());
                    variable.setName(ds.getName());
                    variable.setParent(ds);
                    // the introduction of an on-the-fly ItemDefinition has been removed. The variable type will be evaluated as feel:any, or in v1.2 will receive the (user-defined, explicit) ItemDefinition type.
                    ds.setVariable(variable);
                }
                // continuing with normal compilation of Decision Service:
                boolean foundIt = false;
                for (DRGElementCompiler dc : drgCompilers) {
                    if (dc.accept(ds)) {
                        foundIt = true;
                        dc.compileNode(ds, this, model);
                        continue;
                    }
                }
            }
        }
    }
    for (DecisionServiceNode ds : model.getDecisionServices()) {
        DecisionServiceNodeImpl dsi = (DecisionServiceNodeImpl) ds;
        dsi.addModelImportAliases(model.getImportAliasesForNS());
        for (DRGElementCompiler dc : drgCompilers) {
            if (dsi.getEvaluator() == null && dc.accept(dsi)) {
                // will compile in fact all DS belonging to this model (not the imported ones).
                dc.compileEvaluator(dsi, this, ctx, model);
            }
        }
    }
    for (BusinessKnowledgeModelNode bkm : model.getBusinessKnowledgeModels()) {
        BusinessKnowledgeModelNodeImpl bkmi = (BusinessKnowledgeModelNodeImpl) bkm;
        bkmi.addModelImportAliases(model.getImportAliasesForNS());
        for (DRGElementCompiler dc : drgCompilers) {
            if (bkmi.getEvaluator() == null && dc.accept(bkm)) {
                dc.compileEvaluator(bkm, this, ctx, model);
            }
        }
    }
    for (DecisionNode d : model.getDecisions()) {
        DecisionNodeImpl di = (DecisionNodeImpl) d;
        di.addModelImportAliases(model.getImportAliasesForNS());
        for (DRGElementCompiler dc : drgCompilers) {
            if (di.getEvaluator() == null && dc.accept(d)) {
                dc.compileEvaluator(d, this, ctx, model);
            }
        }
    }
    for (AfterProcessDrgElements callback : afterDRGcallbacks) {
        logger.debug("About to invoke callback: {}", callback);
        callback.callback(this, ctx, model);
    }
    detectCycles(model);
}

Example 7 with DecisionServiceNodeImpl

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

the class DMNRuntimeImpl method evaluateDecisionService.

private void evaluateDecisionService(DMNContext context, DMNResultImpl result, DecisionServiceNode d, boolean typeCheck) {
    DecisionServiceNodeImpl ds = (DecisionServiceNodeImpl) d;
    if (isNodeValueDefined(result, ds, ds)) {
        // already resolved
        return;
    }
    // Note: a Decision Service is expected to always have an evaluator, it does not depend on an xml expression, it is done always by the compiler.
    try {
        // a Decision Service when is evaluated as a function does not require any dependency check, as they will be passed as params.
        EvaluatorResult er = ds.getEvaluator().evaluate(this, result);
        if (er.getResultType() == EvaluatorResult.ResultType.SUCCESS) {
            FEELFunction resultFn = (FEELFunction) er.getResult();
            result.getContext().set(ds.getName(), resultFn);
        }
    } catch (Throwable t) {
        MsgUtil.reportMessage(logger, DMNMessage.Severity.ERROR, ds.getSource(), result, t, null, Msg.ERROR_EVAL_DS_NODE, getIdentifier(ds), t.getMessage());
    }
}

Example 8 with DecisionServiceNodeImpl

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

the class DMNEventUtils method extractDSParameters.

public static Map<String, Object> extractDSParameters(BeforeEvaluateDecisionServiceEvent event) {
    Map<String, Object> results = new LinkedHashMap<String, Object>();
    DecisionServiceNodeImpl dsi = (DecisionServiceNodeImpl) event.getDecisionService();
    Map<String, DMNNode> params = dsi.getInputParameters();
    for (Entry<String, DMNNode> entry : params.entrySet()) {
        String name = entry.getKey();
        Object value = event.getResult().getContext().get(name);
        results.put(name, value);
    }
    return results;
}