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

Example 1 with DMNRuntime

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

the class ValidatorTest method testDryRun.

@Test
public void testDryRun() {
    DMNRuntime runtime = DMNRuntimeUtil.createRuntime("0001-input-data-string.dmn", DMNInputRuntimeTest.class);
    DMNModel dmnModel = runtime.getModel("https://github.com/kiegroup/drools/kie-dmn", "_0001-input-data-string");
    assertThat(dmnModel, notNullValue());
    Definitions definitions = dmnModel.getDefinitions();
    assertThat(definitions, notNullValue());
    DMNValidatorFactory.newValidator().validate(definitions);
}

Example 2 with DMNRuntime

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

the class InvokeFunction method invoke.

public FEELFnResult<Object> invoke(@ParameterName("ctx") EvaluationContext ctx, @ParameterName("namespace") String namespace, @ParameterName("model name") String modelName, @ParameterName("decision name") String decisionName, @ParameterName("parameters") Map<String, Object> parameters) {
    DMNRuntime dmnRuntime = ctx.getDMNRuntime();
    if (namespace == null) {
        return FEELFnResult.ofError(new InvalidParametersEvent(FEELEvent.Severity.ERROR, "namespace", "cannot be null"));
    }
    if (modelName == null) {
        return FEELFnResult.ofError(new InvalidParametersEvent(FEELEvent.Severity.ERROR, "model name", "cannot be null"));
    }
    if (decisionName == null) {
        return FEELFnResult.ofError(new InvalidParametersEvent(FEELEvent.Severity.ERROR, "decision name", "cannot be null"));
    }
    if (parameters == null) {
        return FEELFnResult.ofError(new InvalidParametersEvent(FEELEvent.Severity.ERROR, "parameters", "cannot be null"));
    }
    FEELEvent capturedException = null;
    try {
        ctx.enterFrame();
        DMNModel dmnModel = dmnRuntime.getModel(namespace, modelName);
        if (dmnModel == null) {
            return FEELFnResult.ofError(new FEELEventBase(FEELEvent.Severity.ERROR, "Cannot find model '" + modelName + "' in namespace " + namespace, null));
        }
        if (dmnModel.getDecisionByName(decisionName) == null) {
            return FEELFnResult.ofError(new FEELEventBase(FEELEvent.Severity.ERROR, "Cannot find decision '" + decisionName + "' in the model", null));
        }
        DMNContext dmnContext = dmnRuntime.newContext();
        dmnContext.getAll().putAll(parameters);
        DMNResult requiredDecisionResult = dmnRuntime.evaluateByName(dmnModel, dmnContext, decisionName);
        if (requiredDecisionResult.hasErrors()) {
            return FEELFnResult.ofError(new FEELEventBase(FEELEvent.Severity.ERROR, "Errors occurred while invoking the external decision: " + requiredDecisionResult.getMessages(), null));
        }
        return FEELFnResult.ofResult(requiredDecisionResult.getContext().get(decisionName));
    } catch (Exception e) {
        capturedException = new FEELEventBase(FEELEvent.Severity.ERROR, "Error invoking function", new RuntimeException("Error invoking function " + getName() + ".", e));
    } finally {
        ctx.exitFrame();
    }
    return FEELFnResult.ofError(capturedException);
}

Example 3 with DMNRuntime

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

the class DMNRuntimeTest method testEx_4_3simplified.

@Test
public void testEx_4_3simplified() {
    DMNRuntime runtime = DMNRuntimeUtil.createRuntime("Ex_4_3simplified.dmn", this.getClass());
    DMNModel dmnModel = runtime.getModel("http://www.trisotech.com/definitions/_5c5a9c72-627e-4666-ae85-31356fed3658", "Ex_4_3simplified");
    assertThat(dmnModel, notNullValue());
    assertThat(DMNRuntimeUtil.formatMessages(dmnModel.getMessages()), dmnModel.hasErrors(), is(false));
    DMNContext context = DMNFactory.newContext();
    context.set("number", 123.123456d);
    DMNResult dmnResult = runtime.evaluateAll(dmnModel, context);
    System.out.println(dmnResult);
    assertThat(DMNRuntimeUtil.formatMessages(dmnResult.getMessages()), dmnResult.hasErrors(), is(false));
    DMNContext result = dmnResult.getContext();
    assertThat(result.get("Formatted Monthly Payment"), is("€123.12"));
}

Example 4 with DMNRuntime

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

the class DMNRuntimeTest method testInvalidFunction.

@Test
public void testInvalidFunction() {
    final DMNRuntime runtime = DMNRuntimeUtil.createRuntimeWithAdditionalResources("InvalidFunction.dmn", this.getClass());
    final DMNModel model = runtime.getModel("http://www.trisotech.com/definitions/_84453b71-5d23-479f-9481-5196d92bacae", "0003-iteration-augmented");
    assertThat(model, notNullValue());
    final DMNContext context = DMNFactory.newContext();
    context.set("Loans", new HashMap<>());
    final DMNResult result = runtime.evaluateAll(model, context);
    final List<DMNDecisionResult> decisionResults = result.getDecisionResults();
    FEELStringMarshaller.INSTANCE.marshall(Arrays.asList(decisionResults.get(0).getResult(), decisionResults.get(1).getResult()));
}

Example 5 with DMNRuntime

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

the class DMNRuntimeTest method testYearsAndMonthsDuration.

@Test
public void testYearsAndMonthsDuration() {
    DMNRuntime runtime = DMNRuntimeUtil.createRuntime("yearMonthDuration.dmn", this.getClass());
    DMNModel dmnModel = runtime.getModel("http://www.trisotech.com/dmn/definitions/_6eda1490-21ca-441e-8a26-ab3ca800e43c", "Drawing 1");
    assertThat(dmnModel, notNullValue());
    assertThat(DMNRuntimeUtil.formatMessages(dmnModel.getMessages()), dmnModel.hasErrors(), is(false));
    BuiltInType feelType = (BuiltInType) BuiltInType.determineTypeFromName("yearMonthDuration");
    Period period = (Period) feelType.fromString("P2Y1M");
    DMNContext context = runtime.newContext();
    context.set("iDuration", period);
    DMNResult dmnResult = runtime.evaluateAll(dmnModel, context);
    assertThat(DMNRuntimeUtil.formatMessages(dmnResult.getMessages()), dmnResult.hasErrors(), is(false));
    DMNContext result = dmnResult.getContext();
    assertThat(result.get("How long"), is("Longer than a year"));
}