drools7 (二、agenda-group 的使用)

package cn.xiaojf.drools7.base;

import org.apache.commons.lang3.StringUtils;
import org.kie.api.KieServices;
import org.kie.api.runtime.KieContainer;
import org.kie.api.runtime.KieSession;

public class Base {
    public KieSession getSession() {
        KieServices kieServices = KieServices.Factory.get();
        KieContainer kieContainer = kieServices.getKieClasspathContainer();
        //kmodule.xml 中定义的 ksession name
        KieSession kieSession = kieContainer.newKieSession("all-rules");
        return kieSession;
    }

    public KieSession getSession(String agendaGroupName) {
        KieSession session = this.getSession();
        if (StringUtils.isNoneBlank(agendaGroupName)) {
            session.getAgenda().getAgendaGroup(agendaGroupName).setFocus();
        }

        return session;
    }
}

package day20180117;

import cn.xiaojf.drools7.base.Base;
import cn.xiaojf.drools7.model.Car;
import cn.xiaojf.drools7.model.Person;
import org.junit.Test;
import org.kie.api.KieServices;
import org.kie.api.runtime.KieContainer;
import org.kie.api.runtime.KieSession;

public class Demo extends Base {
    @Test
    public void test() {
        KieSession kieSession = getSession();

        Person p1 = new Person();
        p1.setAge(20);
        Car car = new Car();
        car.setPerson(p1);

        kieSession.insert(car);

        int count = kieSession.fireAllRules();

        System.out.println(count);
        System.out.println(car.getDiscount());

        kieSession.dispose();
    }

    @Test
    public void test2() {
        KieSession kieSession = getSession("test-group");

        Person p1 = new Person();
        p1.setAge(20);
        Car car = new Car();
        car.setPerson(p1);

        kieSession.insert(car);

        int count = kieSession.fireAllRules();

        System.out.println(count);
        System.out.println(car.getDiscount());

        kieSession.dispose();
    }
}

package cn.xiaojf.rules

import cn.xiaojf.drools7.model.Car;
rule "car-discount>30"
agenda-group "test-group"
when
    $car : Car(person.age > 30)
    then
        $car.setDiscount(80);
    end

rule "car-discount<=30"
agenda-group "test-group"
when
    $car : Car(person.age <= 30)
    then
        $car.setDiscount(90);
    end

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