Examples with Facts org.jeasy.rules.api.Facts used on opensource projects

Example 6 with Facts

use of org.jeasy.rules.api.Facts in project easy-rules by j-easy.

the class InferenceRulesEngineTest method testCandidateSelection.

@Test
public void testCandidateSelection() throws Exception {
    // Given
    Facts facts = new Facts();
    facts.put("foo", true);
    DummyRule dummyRule = new DummyRule();
    AnotherDummyRule anotherDummyRule = new AnotherDummyRule();
    Rules rules = new Rules(dummyRule, anotherDummyRule);
    RulesEngine rulesEngine = new InferenceRulesEngine();
    // When
    rulesEngine.fire(rules, facts);
    // Then
    assertThat(dummyRule.isExecuted()).isTrue();
    assertThat(anotherDummyRule.isExecuted()).isFalse();
}

Example 7 with Facts

use of org.jeasy.rules.api.Facts in project easy-rules by j-easy.

the class RuleProxy method evaluateMethod.

private Object evaluateMethod(final Object[] args) throws IllegalAccessException, InvocationTargetException {
    Facts facts = (Facts) args[0];
    Method conditionMethod = getConditionMethod();
    try {
        List<Object> actualParameters = getActualParameters(conditionMethod, facts);
        // validated upfront
        return conditionMethod.invoke(target, actualParameters.toArray());
    } catch (NoSuchFactException e) {
        LOGGER.info("Rule '{}' has been evaluated to false due to a declared but missing fact '{}' in {}", getTargetClass().getName(), e.getMissingFact(), facts);
        return false;
    } catch (IllegalArgumentException e) {
        String error = "Types of injected facts in method '%s' in rule '%s' do not match parameters types";
        throw new RuntimeException(format(error, conditionMethod.getName(), getTargetClass().getName()), e);
    }
}

Example 8 with Facts

use of org.jeasy.rules.api.Facts in project easy-rules by j-easy.

the class MVELActionTest method testMVELFunctionExecution.

@Test
public void testMVELFunctionExecution() throws Exception {
    // given
    Action printAction = new MVELAction("def hello() { System.out.println(\"Hello from MVEL!\"); }; hello();");
    Facts facts = new Facts();
    // when
    printAction.execute(facts);
    // then
    assertThat(systemOutRule.getLog()).contains("Hello from MVEL!");
}

Example 9 with Facts

use of org.jeasy.rules.api.Facts in project easy-rules by j-easy.

the class MVELConditionTest method whenDeclaredFactIsNotPresent_thenShouldReturnFalse.

@Test
public void whenDeclaredFactIsNotPresent_thenShouldReturnFalse() throws Exception {
    // given
    Condition isHot = new MVELCondition("temperature > 30");
    Facts facts = new Facts();
    // when
    boolean evaluationResult = isHot.evaluate(facts);
    // then
    assertThat(evaluationResult).isFalse();
}

Example 10 with Facts

use of org.jeasy.rules.api.Facts in project easy-rules by j-easy.

the class RuleProxy method executeMethod.

private Object executeMethod(final Object[] args) throws IllegalAccessException, InvocationTargetException {
    Facts facts = (Facts) args[0];
    for (ActionMethodOrderBean actionMethodBean : getActionMethodBeans()) {
        Method actionMethod = actionMethodBean.getMethod();
        List<Object> actualParameters = getActualParameters(actionMethod, facts);
        actionMethod.invoke(target, actualParameters.toArray());
    }
    return null;
}