Examples with HitPolicyViolationEvent org.kie.dmn.feel.runtime.events.HitPolicyViolationEvent used on opensource projects

Example 1 with HitPolicyViolationEvent

use of org.kie.dmn.feel.runtime.events.HitPolicyViolationEvent in project drools by kiegroup.

the class DMNDecisionTableHitPolicyTest method testSimpleDecisionTableHitPolicyUniqueNullWarn.

@Test
public void testSimpleDecisionTableHitPolicyUniqueNullWarn() {
    final DMNRuntime runtime = DMNRuntimeUtil.createRuntime("0004-simpletable-U-noinputvalues.dmn", this.getClass());
    final DMNModel dmnModel = runtime.getModel("https://github.com/kiegroup/kie-dmn", "0004-simpletable-U-noinputvalues");
    assertThat(dmnModel, notNullValue());
    final DMNContext context = getSimpleTableContext(BigDecimal.valueOf(18), "ASD", false);
    final DMNResult dmnResult = runtime.evaluateAll(dmnModel, context);
    final DMNContext result = dmnResult.getContext();
    assertThat(result.get("Approval Status"), nullValue());
    assertTrue(dmnResult.getMessages().size() > 0);
    assertTrue(dmnResult.getMessages().stream().anyMatch(dm -> dm.getSeverity().equals(DMNMessage.Severity.WARN) && dm.getFeelEvent() instanceof HitPolicyViolationEvent && dm.getFeelEvent().getSeverity().equals(FEELEvent.Severity.WARN)));
}

Example 2 with HitPolicyViolationEvent

use of org.kie.dmn.feel.runtime.events.HitPolicyViolationEvent in project drools by kiegroup.

the class DecisionTableImpl method evaluate.

/**
 * Evaluates this decision table returning the result
 * @param ctx
 * @param params these are the required information items, not to confuse with the columns of the
 *               decision table that are expressions derived from these parameters
 * @return
 */
public FEELFnResult<Object> evaluate(EvaluationContext ctx, Object[] params) {
    if (decisionRules.isEmpty()) {
        return FEELFnResult.ofError(new FEELEventBase(Severity.WARN, "Decision table is empty", null));
    }
    Object[] actualInputs = resolveActualInputs(ctx, feel);
    Either<FEELEvent, Object> actualInputMatch = actualInputsMatchInputValues(ctx, actualInputs);
    if (actualInputMatch.isLeft()) {
        return actualInputMatch.cata(e -> FEELFnResult.ofError(e), e -> FEELFnResult.ofError(null));
    }
    List<DTDecisionRule> matches = findMatches(ctx, actualInputs);
    if (!matches.isEmpty()) {
        List<Object> results = evaluateResults(ctx, feel, actualInputs, matches);
        Map<Integer, String> msgs = checkResults(ctx, matches, results);
        if (msgs.isEmpty()) {
            Object result = hitPolicy.getDti().dti(ctx, this, actualInputs, matches, results);
            return FEELFnResult.ofResult(result);
        } else {
            List<Integer> offending = msgs.keySet().stream().collect(Collectors.toList());
            return FEELFnResult.ofError(new HitPolicyViolationEvent(Severity.ERROR, "Errors found evaluating decision table '" + getName() + "': \n" + (msgs.values().stream().collect(Collectors.joining("\n"))), name, offending));
        }
    } else {
        // check if there is a default value set for the outputs
        if (hasDefaultValues) {
            Object result = defaultToOutput(ctx, feel);
            return FEELFnResult.ofResult(result);
        } else {
            if (hitPolicy.getDefaultValue() != null) {
                return FEELFnResult.ofResult(hitPolicy.getDefaultValue());
            }
            return FEELFnResult.ofError(new HitPolicyViolationEvent(Severity.WARN, "No rule matched for decision table '" + name + "' and no default values were defined. Setting result to null.", name, Collections.EMPTY_LIST));
        }
    }
}

Example 3 with HitPolicyViolationEvent

use of org.kie.dmn.feel.runtime.events.HitPolicyViolationEvent in project drools by kiegroup.

the class SimpleDecisionTablesTest method testMain.

@Test
public void testMain() {
    List<FEELEvent> events = new ArrayList<>();
    FEELEventListener listener = evt -> events.add(evt);
    feel.addListener(listener);
    String expression = loadExpression("simple_decision_tables.feel");
    Map context = (Map) feel.evaluate(expression);
    System.out.println(printContext(context));
    assertThat(context.get("result1"), is("Adult"));
    assertThat(context.get("result2"), is("Medium"));
    assertThat((Map<?, ?>) context.get("result3"), hasSize(2));
    assertThat((Map<?, ?>) context.get("result3"), hasEntry("Out1", "out1b"));
    assertThat((Map<?, ?>) context.get("result3"), hasEntry("Out2", "out2b"));
    assertThat((Map<?, ?>) context.get("result4"), hasSize(2));
    assertThat((Map<?, ?>) context.get("result4"), hasEntry("Out1", "io1a"));
    assertThat((Map<?, ?>) context.get("result4"), hasEntry("Out2", "io2a"));
    assertThat(context.get("result5"), nullValue());
    assertTrue(events.stream().anyMatch(e -> e instanceof HitPolicyViolationEvent && e.getSeverity().equals(Severity.WARN)));
    feel.removeListener(listener);
}