Examples with Global org.drools.model.Global used on opensource projects

Example 1 with Global

use of org.drools.model.Global in project drools by kiegroup.

the class FlowTest method testFromGlobal.

@Test
public void testFromGlobal() throws Exception {
    // global java.util.List list
    // rule R when
    // $o : String(length > 3) from list
    // then
    // insert($o);
    // end
    final Global<List> var_list = globalOf(List.class, "defaultpkg", "list");
    final Variable<String> var_$o = declarationOf(String.class, "$o", // cannot use Function.identity() here because target type is ?.
    from(var_list, x -> x));
    Rule rule = rule("R").build(expr("$expr$1$", var_$o, (_this) -> _this.length() > 3).indexedBy(int.class, org.drools.model.Index.ConstraintType.GREATER_THAN, 0, _this -> _this.length(), 3).reactOn("length"), on(var_$o).execute((drools, $o) -> {
        drools.insert($o);
    }));
    Model model = new ModelImpl().addGlobal(var_list).addRule(rule);
    KieBase kieBase = KieBaseBuilder.createKieBaseFromModel(model);
    KieSession ksession = kieBase.newKieSession();
    List<String> messages = Arrays.asList("a", "Hello World!", "b");
    ksession.setGlobal("list", messages);
    ksession.fireAllRules();
    List<String> results = getObjectsIntoList(ksession, String.class);
    assertFalse(results.contains("a"));
    assertTrue(results.contains("Hello World!"));
    assertFalse(results.contains("b"));
}

Example 2 with Global

use of org.drools.model.Global in project drools by kiegroup.

the class FlowTest method testGlobalInConsequence.

@Test
public void testGlobalInConsequence() {
    Variable<Person> markV = declarationOf(Person.class);
    Global<Result> resultG = globalOf(Result.class, "org.mypkg");
    Rule rule = rule("org.mypkg", "global").build(expr("exprA", markV, p -> p.getName().equals("Mark")).indexedBy(String.class, ConstraintType.EQUAL, 0, Person::getName, "Mark").reactOn("name"), on(markV, resultG).execute((p, r) -> r.setValue(p.getName() + " is " + p.getAge())));
    Model model = new ModelImpl().addRule(rule).addGlobal(resultG);
    KieBase kieBase = KieBaseBuilder.createKieBaseFromModel(model);
    KieSession ksession = kieBase.newKieSession();
    Result result = new Result();
    ksession.setGlobal(resultG.getName(), result);
    Person mark = new Person("Mark", 37);
    Person edson = new Person("Edson", 35);
    Person mario = new Person("Mario", 40);
    ksession.insert(mark);
    ksession.insert(edson);
    ksession.insert(mario);
    ksession.fireAllRules();
    assertEquals("Mark is 37", result.getValue());
}

Example 3 with Global

use of org.drools.model.Global in project drools by kiegroup.

the class OOPathFlowTest method testOOPathCast.

@Test
public void testOOPathCast() {
    Global<List> listG = globalOf(List.class, "defaultpkg", "list");
    Variable<Man> manV = declarationOf(Man.class, "$man");
    // Drools doc: In this way subsequent constraints can also safely access to properties declared only in that subclass
    Variable<InternationalAddress> addressV = declarationOf(InternationalAddress.class, "$italy", reactiveFrom(manV, Man::getAddress));
    Rule rule = rule("oopath").build(expr("exprA", addressV, c -> c.getState().equals("Italy")), on(manV, listG).execute((t, l) -> l.add(t.getName())));
    Model model = new ModelImpl().addGlobal(listG).addRule(rule);
    KieBase kieBase = KieBaseBuilder.createKieBaseFromModel(model);
    KieSession ksession = kieBase.newKieSession();
    final List<String> list = new ArrayList<>();
    ksession.setGlobal("list", list);
    final Man bob = new Man("Bob", 40);
    bob.setAddress(new InternationalAddress("Via Verdi", "Italy"));
    ksession.insert(bob);
    ksession.fireAllRules();
    Assertions.assertThat(list).containsExactlyInAnyOrder("Bob");
}

Example 4 with Global

use of org.drools.model.Global in project drools by kiegroup.

the class OOPathFlowTest method testOOPath.

@Test
public void testOOPath() {
    Global<List> listG = globalOf(List.class, "defaultpkg", "list");
    Variable<Man> manV = declarationOf(Man.class);
    Variable<Woman> wifeV = declarationOf(Woman.class, reactiveFrom(manV, Man::getWife));
    Variable<Child> childV = declarationOf(Child.class, reactiveFrom(wifeV, Woman::getChildren));
    Rule rule = rule("oopath").build(expr("exprA", childV, c -> c.getAge() > 10), on(manV, listG).execute((t, l) -> l.add(t.getName())));
    Model model = new ModelImpl().addGlobal(listG).addRule(rule);
    KieBase kieBase = KieBaseBuilder.createKieBaseFromModel(model);
    KieSession ksession = kieBase.newKieSession();
    final List<String> list = new ArrayList<>();
    ksession.setGlobal("list", list);
    final Woman alice = new Woman("Alice", 38);
    final Man bob = new Man("Bob", 40);
    final Man carl = new Man("Bob", 42);
    bob.setWife(alice);
    final Child charlie = new Child("Charles", 12);
    final Child debbie = new Child("Debbie", 10);
    alice.addChild(charlie);
    alice.addChild(debbie);
    ksession.insert(bob);
    ksession.insert(carl);
    ksession.fireAllRules();
    Assertions.assertThat(list).containsExactlyInAnyOrder("Bob");
}

Example 5 with Global

use of org.drools.model.Global in project drools by kiegroup.

the class RuleContext method getDeclaration.

Declaration getDeclaration(Variable variable) {
    if (variable.isFact()) {
        Declaration declaration = innerDeclaration.get(variable);
        if (declaration == null) {
            declaration = queryDeclaration.get(variable);
        }
        if (declaration == null) {
            Pattern pattern = patterns.get(variable);
            declaration = pattern != null ? pattern.getDeclaration() : null;
        }
        return declaration;
    } else {
        Global global = ((Global) variable);
        ObjectType objectType = builder.getObjectType(global);
        InternalReadAccessor globalExtractor = new GlobalExtractor(global.getName(), objectType);
        return new Declaration(global.getName(), globalExtractor, new Pattern(0, objectType));
    }
}