Examples with RuleUnit org.kie.api.runtime.rule.RuleUnit used on opensource projects

Example 1 with RuleUnit

use of org.kie.api.runtime.rule.RuleUnit in project drools by kiegroup.

the class RuleUnitCoordinationTest method testCoordination.

@Test
public void testCoordination() throws Exception {
    String drl1 = "package org.drools.compiler.integrationtests\n" + "unit " + getCanonicalSimpleName(MasterModelUnit.class) + ";\n" + "import " + MasterModel.class.getCanonicalName() + "\n" + "import " + ApplicableModel.class.getCanonicalName() + "\n" + "import " + ApplyMathModel.class.getCanonicalName() + "\n" + "import " + ApplyStringModel.class.getCanonicalName() + "\n" + "import " + ScheduledModelApplicationUnit.class.getCanonicalName() + "\n" + "\n" + "rule FindModelToApply \n" + "when\n" + "   $mm: MasterModel( subModels != null ) from models\n" + "   $am: ApplicableModel( applied == false, $idx: index ) from $mm.subModels\n" + // "   not ApplicableModel( applied == false, index < $idx ) from $mm.subModels\n" +
    "then\n" + "   applicableModels.insert($am);\n" + "   drools.run(new ScheduledModelApplicationUnit(models,applicableModels));\n" + "end\n" + "";
    String drl2 = "package org.drools.compiler.integrationtests\n" + "unit " + getCanonicalSimpleName(ScheduledModelApplicationUnit.class) + ";\n" + "import " + MasterModel.class.getCanonicalName() + "\n" + "import " + ApplicableModel.class.getCanonicalName() + "\n" + "import " + ApplyMathModel.class.getCanonicalName() + "\n" + "import " + ApplyStringModel.class.getCanonicalName() + "\n" + "\n" + "rule Apply_ApplyMathModel_Addition \n" + "when\n" + "    $amm: ApplyMathModel( applied == false, inputValue1 != null, " + "                          inputValue2 != null, operation == \"add\" ) from applicableModels\n" + "    $v1: Integer() from $amm.inputValue1 \n" + "    $v2: Integer() from $amm.inputValue2 \n" + "then\n" + "    modify($amm) { \n" + "       setResult($v1.intValue() + $v2.intValue()), \n" + "       setApplied(true) \n" + "    };\n" + "    System.out.println(\"Result = \"+$amm.getResult());\n" + "end\n" + "\n" + "rule Apply_ApplyStringModel_Concat \n" + "when\n" + "    $asm: ApplyStringModel( applied == false, inputString1 != null, " + "                            inputString2 != null, operation == \"concat\" ) from applicableModels \n" + "    $v1: String() from $asm.inputString1 \n" + "    $v2: String() from $asm.inputString2 \n" + "then\n" + "    String result = $v1+\" \"+$v2; \n" + "    modify($asm) {\n" + "       setResult(result),\n" + "       setApplied(true)\n" + "    };\n" + "    System.out.println(\"Result = \"+$asm.getResult());\n" + "end\n" + "";
    MasterModel master = new MasterModel("TestMaster");
    ApplyMathModel mathModel = new ApplyMathModel(1, "Math1", "add", 10, 10);
    ApplyStringModel stringModel = new ApplyStringModel(2, "String1", "concat", "hello", "world");
    master.addSubModel(mathModel);
    master.addSubModel(stringModel);
    KieBase kbase = new KieHelper().addContent(drl1, ResourceType.DRL).addContent(drl2, ResourceType.DRL).build();
    RuleUnitExecutor executor = RuleUnitExecutor.create().bind(kbase);
    DataSource<MasterModel> masterModels = executor.newDataSource("models");
    DataSource<ApplicableModel> applicableModels = executor.newDataSource("applicableModel");
    FactHandle masterFH = masterModels.insert(master);
    RuleUnit unit = new MasterModelUnit(masterModels, applicableModels);
    // int x = 1;
    // while (x > 0) {
    // x = executor.run( unit );
    // System.out.println( x );
    // // I'm reinserting the master model to reinforce its evaluation, as I said in our call this is necessary because
    // // the second level froms are made on plain lists which are not normally re-evaluated by from nodes (regardless of rule units).
    // // In theory also the update should be more correct and enough to reinforce this re-evaluation, but for some reason
    // // in this case is not working. I suspect we have a bug in our NotNode related to this specific case, but I'm still
    // // evaluating it. For now the insert should be good enough to allow you to make some progress on this.
    // // masterModels.update( masterFH, master, "subModels" );
    // masterModels.insert( master );
    // }
    executor.run(unit);
    assertEquals(20, (int) mathModel.getResult());
    assertEquals("hello world", stringModel.getResult());
}

Example 2 with RuleUnit

use of org.kie.api.runtime.rule.RuleUnit in project drools by kiegroup.

the class RuleUnitTest method testRuleUnitFromKieContainer.

@Test
public void testRuleUnitFromKieContainer() {
    String drl = "package org.drools.compiler.integrationtests\n" + "unit " + getCanonicalSimpleName(AdultUnitWithSingleItem.class) + "\n" + "import " + Person.class.getCanonicalName() + "\n" + "rule Adult when\n" + "    $p : /person[age >= adultAge]\n" + "then\n" + "    System.out.println($p.getName() + \" is adult\");\n" + "end";
    String kmodule = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" + "<kmodule xmlns=\"http://jboss.org/kie/6.0.0/kmodule\">\n" + "    <kbase name=\"unit\" equalsBehavior=\"equality\" eventProcessingMode=\"stream\">\n" + "        <ksession name=\"unit-rules\" default=\"true\" type=\"stateful\" clockType=\"pseudo\"/>\n" + "    </kbase>\n" + "</kmodule>";
    KieServices ks = KieServices.Factory.get();
    KieFileSystem kfs = ks.newKieFileSystem().write("src/main/resources/r1.drl", drl).writeKModuleXML(kmodule);
    ks.newKieBuilder(kfs).buildAll();
    KieContainer kcontainer = ks.newKieContainer(ks.getRepository().getDefaultReleaseId());
    RuleUnitExecutor executor = kcontainer.newRuleUnitExecutor();
    assertTrue(executor.getKieSession().getSessionClock() instanceof SessionPseudoClock);
    RuleUnit adultUnit = new AdultUnitWithSingleItem(new Person("Mario", 42));
    assertEquals(1, executor.run(adultUnit));
}

Example 3 with RuleUnit

use of org.kie.api.runtime.rule.RuleUnit in project drools by kiegroup.

the class RuleUnitTest method testWithOOPathAndNot.

@Test
public void testWithOOPathAndNot() throws Exception {
    String drl1 = "import " + Person.class.getCanonicalName() + "\n" + "import " + AdultUnit.class.getCanonicalName() + "\n" + "rule Adult @Unit( AdultUnit.class ) when\n" + "    not /persons[age >= 18]\n" + "then\n" + "    System.out.println(\"No adults\");\n" + "end";
    KieBase kbase = new KieHelper().addContent(drl1, ResourceType.DRL).build();
    RuleUnitExecutor executor = RuleUnitExecutor.create().bind(kbase);
    DataSource<Person> persons = executor.newDataSource("persons", new Person("Mario", 4), new Person("Marilena", 17), new Person("Sofia", 4));
    RuleUnit adultUnit = new AdultUnit(persons);
    assertEquals(1, executor.run(adultUnit));
}

Example 4 with RuleUnit

use of org.kie.api.runtime.rule.RuleUnit in project drools by kiegroup.

the class RuleUnitTest method testWithOOPath.

@Test
public void testWithOOPath() throws Exception {
    String drl1 = "import " + Person.class.getCanonicalName() + "\n" + "import " + AdultUnit.class.getCanonicalName() + "\n" + "rule Adult @Unit( AdultUnit.class ) when\n" + "    $p : /persons[age >= 18]\n" + "then\n" + "    System.out.println($p.getName() + \" is adult\");\n" + "end";
    KieBase kbase = new KieHelper().addContent(drl1, ResourceType.DRL).build();
    RuleUnitExecutor executor = RuleUnitExecutor.create().bind(kbase);
    DataSource<Person> persons = executor.newDataSource("persons", new Person("Mario", 42), new Person("Marilena", 44), new Person("Sofia", 4));
    RuleUnit adultUnit = new AdultUnit(persons);
    assertEquals(2, executor.run(adultUnit));
}

Example 5 with RuleUnit

use of org.kie.api.runtime.rule.RuleUnit in project drools by kiegroup.

the class RuleBuildContext method initRuleUnitClassName.

private void initRuleUnitClassName() {
    String ruleUnitClassName = rule.getRuleUnitClassName();
    boolean nameInferredFromResource = false;
    if (ruleUnitClassName == null && rule.getResource() != null && rule.getResource().getSourcePath() != null) {
        // We cannot depend on splitting based on File.separator, because e.g. MemoryFileSystem is "/" based
        // also on Windows => We need to parse the classname based on Java classname allowed characters.
        ruleUnitClassName = extractClassNameFromSourcePath();
        nameInferredFromResource = true;
    }
    if (ruleUnitClassName != null) {
        TypeResolver typeResolver = getPkg().getTypeResolver();
        boolean unitFound = false;
        Class<?> ruleUnitClass = ClassUtils.safeLoadClass(typeResolver.getClassLoader(), ruleUnitClassName);
        if (ruleUnitClass != null) {
            unitFound = RuleUnit.class.isAssignableFrom(ruleUnitClass);
            if (unitFound && nameInferredFromResource) {
                rule.setRuleUnitClassName(ruleUnitClassName);
            }
        }
        if (!unitFound && !nameInferredFromResource) {
            addError(new RuleBuildError(rule, getParentDescr(), null, ruleUnitClassName + " is not a valid RuleUnit class name"));
        }
    }
}