Examples with Pattern org.drools.core.rule.Pattern used on opensource projects

Example 61 with Pattern

use of org.drools.core.rule.Pattern in project drools by kiegroup.

the class KiePackagesBuilder method populateLHS.

private void populateLHS(RuleContext ctx, View view) {
    GroupElement lhs = ctx.getRule().getLhs();
    addSubConditions(ctx, lhs, view.getSubConditions());
    if (requiresLeftActivation(lhs)) {
        lhs.addChild(0, new Pattern(ctx.getNextPatternIndex(), ClassObjectType.InitialFact_ObjectType));
    }
}

Example 62 with Pattern

use of org.drools.core.rule.Pattern in project drools by kiegroup.

the class PatternDSLTest method testAfterWithAnd.

@Test
public void testAfterWithAnd() throws Exception {
    Variable<StockTick> var_$a = declarationOf(StockTick.class, "$a");
    Variable<StockTick> var_$b = declarationOf(StockTick.class, "$b");
    Rule rule = rule("R").build(pattern(var_$a).expr("$expr$3$", (_this) -> org.drools.modelcompiler.util.EvaluationUtil.areNullSafeEquals(_this.getCompany(), "DROO"), alphaIndexedBy(java.lang.String.class, org.drools.model.Index.ConstraintType.EQUAL, 0, _this -> _this.getCompany(), "DROO"), reactOn("company")), pattern(var_$b).and().expr("$expr$5$", (_this) -> org.drools.modelcompiler.util.EvaluationUtil.areNullSafeEquals(_this.getCompany(), "ACME"), alphaIndexedBy(java.lang.String.class, org.drools.model.Index.ConstraintType.EQUAL, 0, _this -> _this.getCompany(), "ACME"), reactOn("company")).expr("$expr$6$", var_$a, after(5L, java.util.concurrent.TimeUnit.SECONDS, 8L, java.util.concurrent.TimeUnit.SECONDS)).endAnd(), execute(() -> {
        System.out.println("fired");
    }));
    Model model = new ModelImpl().addRule(rule);
    KieBase kieBase = KieBaseBuilder.createKieBaseFromModel(model, EventProcessingOption.STREAM);
    KieSessionConfiguration conf = KieServices.get().newKieSessionConfiguration();
    conf.setOption(ClockTypeOption.get(ClockType.PSEUDO_CLOCK.getId()));
    KieSession ksession = kieBase.newKieSession(conf, null);
    SessionPseudoClock clock = ksession.getSessionClock();
    ksession.insert(new StockTick("DROO"));
    clock.advanceTime(6, TimeUnit.SECONDS);
    ksession.insert(new StockTick("ACME"));
    assertEquals(1, ksession.fireAllRules());
    clock.advanceTime(4, TimeUnit.SECONDS);
    ksession.insert(new StockTick("ACME"));
    assertEquals(0, ksession.fireAllRules());
}

Example 63 with Pattern

use of org.drools.core.rule.Pattern in project drools by kiegroup.

the class PatternDSLTest method testQueryInRule.

@Test
public void testQueryInRule() {
    Variable<Person> personV = DSL.declarationOf(Person.class);
    Query2Def<Person, Integer> qdef = query("olderThan", Person.class, Integer.class);
    Query query = qdef.build(pattern(qdef.getArg1()).expr("exprA", qdef.getArg2(), (p, a) -> p.getAge() > a));
    Variable<Person> personVRule = DSL.declarationOf(Person.class);
    Rule rule = rule("R").build(qdef.call(personVRule, valueOf(40)), on(personVRule).execute((drools, p) -> drools.insert(new Result(p.getName()))));
    Model model = new ModelImpl().addQuery(query).addRule(rule);
    KieBase kieBase = KieBaseBuilder.createKieBaseFromModel(model);
    KieSession ksession = kieBase.newKieSession();
    ksession.insert(new Person("Mark", 39));
    ksession.insert(new Person("Mario", 41));
    ksession.fireAllRules();
    Collection<Result> results = (Collection<Result>) ksession.getObjects(new ClassObjectFilter(Result.class));
    assertEquals(1, results.size());
    assertEquals("Mario", results.iterator().next().getValue());
}

Example 64 with Pattern

use of org.drools.core.rule.Pattern in project drools by kiegroup.

the class PatternDSLTest method testAccumulateConstrainingValue.

@Test
public void testAccumulateConstrainingValue() {
    Variable<org.drools.modelcompiler.domain.Person> var_$p = declarationOf(org.drools.modelcompiler.domain.Person.class, "$p");
    Variable<Integer> var_$expr$5$ = declarationOf(Integer.class, "$expr$5$");
    Variable<java.lang.Integer> var_$sum = declarationOf(java.lang.Integer.class, "$sum");
    Rule rule = rule("X").build(accumulate(pattern(var_$p).expr("$expr$4$", (_this) -> _this.getName().startsWith("M")).bind(var_$expr$5$, (_this) -> _this.getAge()), accFunction(org.drools.core.base.accumulators.IntegerSumAccumulateFunction.class, var_$expr$5$).as(var_$sum)), pattern(var_$sum).expr("$expr$3$", (_this) -> _this > 50), on(var_$sum).execute((drools, $sum) -> {
        drools.insert(new Result($sum));
    }));
    Model model = new ModelImpl().addRule(rule);
    KieBase kieBase = KieBaseBuilder.createKieBaseFromModel(model);
    KieSession ksession = kieBase.newKieSession();
    ksession.insert(new Person("Mark", 37));
    ksession.insert(new Person("Edson", 35));
    ksession.insert(new Person("Mario", 40));
    ksession.fireAllRules();
    Collection<Result> results = getObjectsIntoList(ksession, Result.class);
    assertEquals(1, results.size());
    assertEquals(77, results.iterator().next().getValue());
}

Example 65 with Pattern

use of org.drools.core.rule.Pattern in project drools by kiegroup.

the class PatternDSLTest method testBreakingNamedConsequence.

@Test
public void testBreakingNamedConsequence() {
    Variable<Result> resultV = declarationOf(Result.class);
    Variable<Person> markV = declarationOf(Person.class);
    Variable<Person> olderV = declarationOf(Person.class);
    Rule rule = rule("beta").build(pattern(resultV), pattern(markV).expr("exprA", p -> p.getName().equals("Mark"), alphaIndexedBy(String.class, Index.ConstraintType.EQUAL, 1, p -> p.getName(), "Mark"), reactOn("name", "age")), when("cond1", markV, p -> p.getAge() < 30).then(on(markV, resultV).breaking().execute((p, r) -> r.addValue("Found young " + p.getName()))).elseWhen("cond2", markV, p -> p.getAge() > 50).then(on(markV, resultV).breaking().execute((p, r) -> r.addValue("Found old " + p.getName()))).elseWhen().then(on(markV, resultV).breaking().execute((p, r) -> r.addValue("Found " + p.getName()))), pattern(olderV).expr("exprB", p -> !p.getName().equals("Mark"), alphaIndexedBy(String.class, Index.ConstraintType.NOT_EQUAL, 1, p -> p.getName(), "Mark"), reactOn("name")).expr("exprC", markV, (p1, p2) -> p1.getAge() > p2.getAge(), betaIndexedBy(int.class, Index.ConstraintType.GREATER_THAN, 0, p -> p.getAge(), p -> p.getAge()), reactOn("age")), on(olderV, markV, resultV).execute((p1, p2, r) -> r.addValue(p1.getName() + " is older than " + p2.getName())));
    Model model = new ModelImpl().addRule(rule);
    KieBase kieBase = KieBaseBuilder.createKieBaseFromModel(model);
    KieSession ksession = kieBase.newKieSession();
    Result result = new Result();
    ksession.insert(result);
    ksession.insert(new Person("Mark", 37));
    ksession.insert(new Person("Edson", 35));
    ksession.insert(new Person("Mario", 40));
    ksession.fireAllRules();
    Collection<String> results = (Collection<String>) result.getValue();
    assertEquals(1, results.size());
    assertEquals("Found Mark", results.iterator().next());
}