Spring Boot & Drools 룰 엔진 사용해보기

68176 단어 Drools Spring boot Rule Engine Drools

회사 프로젝트 중에서 Drools 룰 엔진을 사용하는 프로젝트를 진행하면서, Drools 룰 엔진에 대한 학습 및 테스트 위해서 만든 예제를 중심으로 Spring Boot에서 Drools 룰 엔진 사용을 하는 방법에 대한 내용을 정리한 내용임.
작성된 예제 코드는 아래 GitHub 저장소에서 확인 가능하다.
kenux196/drools-springboot-ex

예제 소스에서 구현된 기능은 가상의 온도 센서의 온도 변화에 따른 디바이스(에어컨과 같은) 제어(Power on / off) 처리를 Drools 룰 엔진으로 하는 간단한 예제이다.

Drools 룰 엔진에 대한 내용은 국내에 서적도 거의 없고, 검색으로 찾을 수 있는 한글화된 사이트가 거의 없다. 검색된 내용도 대부분이 과거 버전에서 테스트된 내용이었다. Drools 룰 엔진 공식 사이트를 살펴보는 것이 좋은 방법일 것이라 생각되고, 나 역시 공식 사이트를 참고하였다.

drools 공식 사이트

Drools Dependency 추가

build.gradle 파일

ext {
	droolsVersion = "7.0.0.Final"
}

dependencies {
	implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
	implementation 'org.springframework.boot:spring-boot-starter-validation'
	implementation 'org.springframework.boot:spring-boot-starter-web'
	compileOnly 'org.projectlombok:lombok'
	developmentOnly 'org.springframework.boot:spring-boot-devtools'
	runtimeOnly 'com.h2database:h2'
	runtimeOnly 'org.postgresql:postgresql'
	annotationProcessor 'org.projectlombok:lombok'
	testImplementation 'org.springframework.boot:spring-boot-starter-test'

	implementation 'org.slf4j:slf4j-api'

	implementation "org.kie:kie-api:${droolsVersion}"
	implementation "org.kie:kie-ci:${droolsVersion}"
	implementation "org.kie:kie-spring:${droolsVersion}"
	implementation "org.drools:drools-core:${droolsVersion}"
	implementation "org.drools:drools-compiler:${droolsVersion}"
//    implementation "org.drools:drools-mvel:${droolsVersion}"
	implementation "org.drools:drools-templates:${droolsVersion}"
//    implementation "org.drools:drools-bom:${droolsVersion}"

}

Rule 파일 작성

resources 아래에 rules 디렉토리 생성하고, xxx.drl 파일을 다음과 같이 작성한다.

import study.example.drools.domain.Device
import study.example.drools.domain.TempSensor

rule "룰 - 실내 온도가 30도 이상이면 에어컨을 켠다"
    no-loop true
    lock-on-active true
    when
      $tempSensor : TempSensor(indoorTemp >= 30)
      $device : Device(operating == false)
    then
      modify($device) { setOperating(true) }
      System.out.println($device.getDeviceInfo() + " Power On");
    end

rule "룰 - 실내 온도가 30도 미만이면 에어컨 끈다"
    no-loop true
    lock-on-active true
    when
      $tempSensor : TempSensor(indoorTemp < 30)
      $device : Device(operating == true)
    then
      modify($device) { setOperating(false) }
      System.out.println($device.getDeviceInfo() + " Power Off");
    end

Configuration 추가

DroolsAutoConfiguration 클래스 생성한다.

@Configuration
public class DroolsAutoConfiguration {

    public static final String RULES_PATH = "rules/";

    @Bean
    @ConditionalOnMissingBean(KieFileSystem.class)
    public KieFileSystem kieFileSystem() throws IOException {
        KieFileSystem kieFileSystem = getKieServices().newKieFileSystem();
        for (Resource file : getRuleFiles()) {
            kieFileSystem.write(ResourceFactory.newClassPathResource(RULES_PATH + file.getFilename(), "UTF-8"));
        }
        return kieFileSystem;
    }

    private Resource[] getRuleFiles() throws IOException {
        ResourcePatternResolver resourcePatternResolver = new PathMatchingResourcePatternResolver();
        return resourcePatternResolver.getResources("classpath*:" + RULES_PATH + "**/*.*");
    }

    @Bean
    @ConditionalOnMissingBean(KieContainer.class)
    public KieContainer kieContainer() throws IOException {
        final KieRepository kieRepository = getKieServices().getRepository();
        kieRepository.addKieModule(kieRepository::getDefaultReleaseId);

        KieBuilder kieBuilder = getKieServices().newKieBuilder(kieFileSystem());
        kieBuilder.buildAll();

        return getKieServices().newKieContainer(kieRepository.getDefaultReleaseId());
    }

    private KieServices getKieServices() {
        return KieServices.Factory.get();
    }

    @Bean
    @ConditionalOnMissingBean(KieBase.class)
    public KieBase kieBase() throws IOException {
        return kieContainer().getKieBase();
    }

    @Bean
    @ConditionalOnMissingBean(KieSession.class)
    public KieSession kieSession() throws IOException {
        return kieContainer().newKieSession();
    }

    @Bean
    @ConditionalOnMissingBean(KModuleBeanFactoryPostProcessor.class)
    public KModuleBeanFactoryPostProcessor kiePostProcessor() {
        return new KModuleBeanFactoryPostProcessor();
    }
}

Fact 설정

본 예제에서는 온도 센서의 온도 값에 따라 에어컨 제어를 하는 모델의 예제이므로 Device, TempSensor class 추가하였다.

@Data
public class Device {
    private Long id;
    private DeviceType type;
    private Boolean operating;

    public String getDeviceName() {
        return id + "번 디바이스";
    }

    public static Device createAirConditioner(long id, boolean operating) {
        return new Device(id, DeviceType.AIR_CONDITIONER, operating);
    }

    public Device(long id, DeviceType type, boolean operating) {
        this.id = id;
        this.type = type;
        this.operating = false;
    }

    public String getDeviceInfo() {
        return id + "번 디바이스 : " + type.getName();
    }

}


@Data
@ToString
public class TempSensor {
    private int indoorTemp;
}

DeviceService 추가

Drools 룰 엔진을 이용해서 Device 제어 기능을 제공하는 서비스 구현

@Slf4j
@Service
@RequiredArgsConstructor
public class DeviceService {

    private final KieContainer kieContainer;
    private final DeviceRepository deviceRepository;

    private KieSession kieSession;

    private final TempSensor tempSensor = new TempSensor();

    @PostConstruct
    private void initService() {
        kieSession = kieContainer.newKieSession();
        kieSession.addEventListener(new CustomAgendaEventListener());
        kieSession.addEventListener(new CustomRuleRunTimeEventListener());
        kieSession.addEventListener(new CustomProcessEventListener());
    }

    public FactHandle addDevice(Device device) {
        deviceRepository.addDevice(device);
        FactHandle factHandle = kieSession.insert(device);
        kieSession.fireAllRules();
        printFactSize("기기 추가 => " + device.getDeviceInfo(), false);
        return factHandle;
    }

    public void updateSensorData(int temp) {
        log.debug("온도 센서 값 변경 = " + temp);
        tempSensor.setIndoorTemp(temp);
        FactHandle factHandle = kieSession.getFactHandle(tempSensor);
        if (factHandle != null) {
            kieSession.update(factHandle, tempSensor); // update exist fact
            log.debug("온도 센서 Fact 업데이트");
        } else {
            kieSession.insert(tempSensor); // insert new fact
            log.debug("온도 센서 Fact 추가");
        }
        kieSession.fireAllRules();
        printFactSize("온도 값 변경 완료", false);
    }

    public Collection<FactHandle> getFactHandles() {
        return kieSession.getFactHandles();
    }

    private void printFactSize(String msg, boolean showFactHandleInfo) {
        log.info(msg + " ==> kieSession.getFactCount() = " + kieSession.getFactCount());

        if (showFactHandleInfo) {
            Collection<FactHandle> factHandles = kieSession.getFactHandles();
            for (FactHandle factHandle : factHandles) {
                log.info("factHandle = " + factHandle.toExternalForm());
            }
        }
    }

    public List<Device> getDevices() {
        return deviceRepository.getDeviceList();
    }
}

Test

@SpringBootTest
class DeviceServiceTest {

    @Autowired
    DeviceService deviceService;

    @Test
    @DisplayName("기기 추가 테스트")
    void addDeviceTest() {
        final Device device = Device.createAirConditioner(1, false);
        deviceService.addDevice(device);
        final Collection<FactHandle> factHandles = deviceService.getFactHandles();
        assertThat(factHandles).hasSize(1);
    }

    @Test
    @DisplayName("온도가 30도 이상이면 에어컨 켠다.")
    void airConditionerOnTest() {
        final Device device = Device.createAirConditioner(1, false);
        deviceService.addDevice(device);
        deviceService.updateSensorData(35);

        assertThat(device.getOperating()).isTrue();
    }

    @Test
    @DisplayName("온도가 30도 미만이면 에어컨 끈다")
    void airConditionerOffTest() {
        final Device device = Device.createAirConditioner(1, true);
        deviceService.addDevice(device);
        deviceService.updateSensorData(24);

        assertThat(device.getOperating()).isFalse();
    }
}

아래는 온도 센서 값이 30도 이상인 경우에 대한 테스트와 결과이다

@Test
@DisplayName("온도가 30도 이상이면 에어컨 켠다.")
void airConditionerOnTest() {
    final Device device = Device.createAirConditioner(1, false);
    deviceService.addDevice(device);
    deviceService.updateSensorData(35);
    assertThat(device.getOperating()).isTrue();
}

objectInserted event.getObject().getClass() = class study.example.drools.domain.Device
objectInserted event.getFactHandle() = [fact 0:1:662786209:-314770286:1:DEFAULT:NON_TRAIT:study.example.drools.domain.Device:Device(id=1, type=AIR_CONDITIONER, operating=false, dummy=[{"name":null,"nameDisplayCoordinate":null,"type":null,"mappedType":null,"description":null,"parentId":null,"registrationStatus":null,"configuration":{"mobilityType":null,"remoteControl":"Permit","time":null,"locationType":null},"modes":[{"id":"AirConditioner_Indoor_IndoorMode","description":null,"enabled":null,"value":"Auto"},{"id":"AirConditioner_Indoor_ErvMode","description":null,"enabled":null,"value":"Auto"},{"id":"AirConditioner_Indoor_DhwMode","description":null,"enabled":null,"value":"Standard"}],"operations":[{"id":"AirConditioner_Indoor_IndoorPower","value":"on"},{"id":"AirConditioner_Indoor_ErvPower","value":"on"},{"id":"AirConditioner_Indoor_DhwPower","value":"on"}],"temperatures":[{"id":"AirConditioner_Indoor_IndoorSetTemp","enabled":null,"unit":null,"desired":24.0},{"id":"AirConditioner_Indoor_WateroutSetTemp","enabled":null,"unit":null,"desired":24.0},{"id":"AirConditioner_Indoor_DhwSetTemp","enabled":null,"unit":null,"desired":40.0}],"meters":null,"lights":null,"id":null,"airConditioner":null}, {"name":null,"nameDisplayCoordinate":null,"type":null,"mappedType":null,"description":null,"parentId":null,"registrationStatus":null,"configuration":{"mobilityType":null,"remoteControl":"Permit","time":null,"locationType":null},"modes":[{"id":"AirConditioner_Indoor_IndoorMode","description":null,"enabled":null,"value":"Auto"},{"id":"AirConditioner_Indoor_ErvMode","description":null,"enabled":null,"value":"Auto"},{"id":"AirConditioner_Indoor_DhwMode","description":null,"enabled":null,"value":"Standard"}],"operations":[{"id":"AirConditioner_Indoor_IndoorPower","value":"on"},{"id":"AirConditioner_Indoor_ErvPower","value":"on"},{"id":"AirConditioner_Indoor_DhwPower","value":"on"}],"temperatures":[{"id":"AirConditioner_Indoor_IndoorSetTemp","enabled":null,"unit":null,"desired":24.0},{"id":"AirConditioner_Indoor_WateroutSetTemp","enabled":null,"unit":null,"desired":24.0},{"id":"AirConditioner_Indoor_DhwSetTemp","enabled":null,"unit":null,"desired":40.0}],"meters":null,"lights":null,"id":null,"airConditioner":null}, {"name":null,"nameDisplayCoordinate":null,"type":null,"mappedType":null,"description":null,"parentId":null,"registrationStatus":null,"configuration":{"mobilityType":null,"remoteControl":"Permit","time":null,"locationType":null},"modes":[{"id":"AirConditioner_Indoor_IndoorMode","description":null,"enabled":null,"value":"Auto"},{"id":"AirConditioner_Indoor_ErvMode","description":null,"enabled":null,"value":"Auto"},{"id":"AirConditioner_Indoor_DhwMode","description":null,"enabled":null,"value":"Standard"}],"operations":[{"id":"AirConditioner_Indoor_IndoorPower","value":"on"},{"id":"AirConditioner_Indoor_ErvPower","value":"on"},{"id":"AirConditioner_Indoor_DhwPower","value":"on"}],"temperatures":[{"id":"AirConditioner_Indoor_IndoorSetTemp","enabled":null,"unit":null,"desired":24.0},{"id":"AirConditioner_Indoor_WateroutSetTemp","enabled":null,"unit":null,"desired":24.0},{"id":"AirConditioner_Indoor_DhwSetTemp","enabled":null,"unit":null,"desired":40.0}],"meters":null,"lights":null,"id":null,"airConditioner":null}, {"name":null,"nameDisplayCoordinate":null,"type":null,"mappedType":null,"description":null,"parentId":null,"registrationStatus":null,"configuration":{"mobilityType":null,"remoteControl":"Permit","time":null,"locationType":null},"modes":[{"id":"AirConditioner_Indoor_IndoorMode","description":null,"enabled":null,"value":"Auto"},{"id":"AirConditioner_Indoor_ErvMode","description":null,"enabled":null,"value":"Auto"},{"id":"AirConditioner_Indoor_DhwMode","description":null,"enabled":null,"value":"Standard"}],"operations":[{"id":"AirConditioner_Indoor_IndoorPower","value":"on"},{"id":"AirConditioner_Indoor_ErvPower","value":"on"},{"id":"AirConditioner_Indoor_DhwPower","value":"on"}],"temperatures":[{"id":"AirConditioner_Indoor_IndoorSetTemp","enabled":null,"unit":null,"desired":24.0},{"id":"AirConditioner_Indoor_WateroutSetTemp","enabled":null,"unit":null,"desired":24.0},{"id":"AirConditioner_Indoor_DhwSetTemp","enabled":null,"unit":null,"desired":40.0}],"meters":null,"lights":null,"id":null,"airConditioner":null}, {"name":null,"nameDisplayCoordinate":null,"type":null,"mappedType":null,"description":null,"parentId":null,"registrationStatus":null,"configuration":{"mobilityType":null,"remoteControl":"Permit","time":null,"locationType":null},"modes":[{"id":"AirConditioner_Indoor_IndoorMode","description":null,"enabled":null,"value":"Auto"},{"id":"AirConditioner_Indoor_ErvMode","description":null,"enabled":null,"value":"Auto"},{"id":"AirConditioner_Indoor_DhwMode","description":null,"enabled":null,"value":"Standard"}],"operations":[{"id":"AirConditioner_Indoor_IndoorPower","value":"on"},{"id":"AirConditioner_Indoor_ErvPower","value":"on"},{"id":"AirConditioner_Indoor_DhwPower","value":"on"}],"temperatures":[{"id":"AirConditioner_Indoor_IndoorSetTemp","enabled":null,"unit":null,"desired":24.0},{"id":"AirConditioner_Indoor_WateroutSetTemp","enabled":null,"unit":null,"desired":24.0},{"id":"AirConditioner_Indoor_DhwSetTemp","enabled":null,"unit":null,"desired":40.0}],"meters":null,"lights":null,"id":null,"airConditioner":null}, {"name":null,"nameDisplayCoordinate":null,"type":null,"mappedType":null,"description":null,"parentId":null,"registrationStatus":null,"configuration":{"mobilityType":null,"remoteControl":"Permit","time":null,"locationType":null},"modes":[{"id":"AirConditioner_Indoor_IndoorMode","description":null,"enabled":null,"value":"Auto"},{"id":"AirConditioner_Indoor_ErvMode","description":null,"enabled":null,"value":"Auto"},{"id":"AirConditioner_Indoor_DhwMode","description":null,"enabled":null,"value":"Standard"}],"operations":[{"id":"AirConditioner_Indoor_IndoorPower","value":"on"},{"id":"AirConditioner_Indoor_ErvPower","value":"on"},{"id":"AirConditioner_Indoor_DhwPower","value":"on"}],"temperatures":[{"id":"AirConditioner_Indoor_IndoorSetTemp","enabled":null,"unit":null,"desired":24.0},{"id":"AirConditioner_Indoor_WateroutSetTemp","enabled":null,"unit":null,"desired":24.0},{"id":"AirConditioner_Indoor_DhwSetTemp","enabled":null,"unit":null,"desired":40.0}],"meters":null,"lights":null,"id":null,"airConditioner":null}, {"name":null,"nameDisplayCoordinate":null,"type":null,"mappedType":null,"description":null,"parentId":null,"registrationStatus":null,"configuration":{"mobilityType":null,"remoteControl":"Permit","time":null,"locationType":null},"modes":[{"id":"AirConditioner_Indoor_IndoorMode","description":null,"enabled":null,"value":"Auto"},{"id":"AirConditioner_Indoor_ErvMode","description":null,"enabled":null,"value":"Auto"},{"id":"AirConditioner_Indoor_DhwMode","description":null,"enabled":null,"value":"Standard"}],"operations":[{"id":"AirConditioner_Indoor_IndoorPower","value":"on"},{"id":"AirConditioner_Indoor_ErvPower","value":"on"},{"id":"AirConditioner_Indoor_DhwPower","value":"on"}],"temperatures":[{"id":"AirConditioner_Indoor_IndoorSetTemp","enabled":null,"unit":null,"desired":24.0},{"id":"AirConditioner_Indoor_WateroutSetTemp","enabled":null,"unit":null,"desired":24.0},{"id":"AirConditioner_Indoor_DhwSetTemp","enabled":null,"unit":null,"desired":40.0}],"meters":null,"lights":null,"id":null,"airConditioner":null}, {"name":null,"nameDisplayCoordinate":null,"type":null,"mappedType":null,"description":null,"parentId":null,"registrationStatus":null,"configuration":{"mobilityType":null,"remoteControl":"Permit","time":null,"locationType":null},"modes":[{"id":"AirConditioner_Indoor_IndoorMode","description":null,"enabled":null,"value":"Auto"},{"id":"AirConditioner_Indoor_ErvMode","description":null,"enabled":null,"value":"Auto"},{"id":"AirConditioner_Indoor_DhwMode","description":null,"enabled":null,"value":"Standard"}],"operations":[{"id":"AirConditioner_Indoor_IndoorPower","value":"on"},{"id":"AirConditioner_Indoor_ErvPower","value":"on"},{"id":"AirConditioner_Indoor_DhwPower","value":"on"}],"temperatures":[{"id":"AirConditioner_Indoor_IndoorSetTemp","enabled":null,"unit":null,"desired":24.0},{"id":"AirConditioner_Indoor_WateroutSetTemp","enabled":null,"unit":null,"desired":24.0},{"id":"AirConditioner_Indoor_DhwSetTemp","enabled":null,"unit":null,"desired":40.0}],"meters":null,"lights":null,"id":null,"airConditioner":null}, {"name":null,"nameDisplayCoordinate":null,"type":null,"mappedType":null,"description":null,"parentId":null,"registrationStatus":null,"configuration":{"mobilityType":null,"remoteControl":"Permit","time":null,"locationType":null},"modes":[{"id":"AirConditioner_Indoor_IndoorMode","description":null,"enabled":null,"value":"Auto"},{"id":"AirConditioner_Indoor_ErvMode","description":null,"enabled":null,"value":"Auto"},{"id":"AirConditioner_Indoor_DhwMode","description":null,"enabled":null,"value":"Standard"}],"operations":[{"id":"AirConditioner_Indoor_IndoorPower","value":"on"},{"id":"AirConditioner_Indoor_ErvPower","value":"on"},{"id":"AirConditioner_Indoor_DhwPower","value":"on"}],"temperatures":[{"id":"AirConditioner_Indoor_IndoorSetTemp","enabled":null,"unit":null,"desired":24.0},{"id":"AirConditioner_Indoor_WateroutSetTemp","enabled":null,"unit":null,"desired":24.0},{"id":"AirConditioner_Indoor_DhwSetTemp","enabled":null,"unit":null,"desired":40.0}],"meters":null,"lights":null,"id":null,"airConditioner":null}, {"name":null,"nameDisplayCoordinate":null,"type":null,"mappedType":null,"description":null,"parentId":null,"registrationStatus":null,"configuration":{"mobilityType":null,"remoteControl":"Permit","time":null,"locationType":null},"modes":[{"id":"AirConditioner_Indoor_IndoorMode","description":null,"enabled":null,"value":"Auto"},{"id":"AirConditioner_Indoor_ErvMode","description":null,"enabled":null,"value":"Auto"},{"id":"AirConditioner_Indoor_DhwMode","description":null,"enabled":null,"value":"Standard"}],"operations":[{"id":"AirConditioner_Indoor_IndoorPower","value":"on"},{"id":"AirConditioner_Indoor_ErvPower","value":"on"},{"id":"AirConditioner_Indoor_DhwPower","value":"on"}],"temperatures":[{"id":"AirConditioner_Indoor_IndoorSetTemp","enabled":null,"unit":null,"desired":24.0},{"id":"AirConditioner_Indoor_WateroutSetTemp","enabled":null,"unit":null,"desired":24.0},{"id":"AirConditioner_Indoor_DhwSetTemp","enabled":null,"unit":null,"desired":40.0}],"meters":null,"lights":null,"id":null,"airConditioner":null}], base={"name":null,"nameDisplayCoordinate":null,"type":null,"mappedType":null,"description":null,"parentId":null,"registrationStatus":null,"configuration":{"mobilityType":null,"remoteControl":"Permit","time":null,"locationType":null},"modes":[{"id":"AirConditioner_Indoor_IndoorMode","description":null,"enabled":null,"value":"Auto"},{"id":"AirConditioner_Indoor_ErvMode","description":null,"enabled":null,"value":"Auto"},{"id":"AirConditioner_Indoor_DhwMode","description":null,"enabled":null,"value":"Standard"}],"operations":[{"id":"AirConditioner_Indoor_IndoorPower","value":"on"},{"id":"AirConditioner_Indoor_ErvPower","value":"on"},{"id":"AirConditioner_Indoor_DhwPower","value":"on"}],"temperatures":[{"id":"AirConditioner_Indoor_IndoorSetTemp","enabled":null,"unit":null,"desired":24.0},{"id":"AirConditioner_Indoor_WateroutSetTemp","enabled":null,"unit":null,"desired":24.0},{"id":"AirConditioner_Indoor_DhwSetTemp","enabled":null,"unit":null,"desired":40.0}],"meters":null,"lights":null,"id":null,"airConditioner":null})]
기기 추가 => 1번 디바이스 : AirConditioner ==> kieSession.getFactCount() = 1
objectInserted event.getObject().getClass() = class study.example.drools.domain.TempSensor
objectInserted event.getFactHandle() = [fact 0:2:660626311:94:2:DEFAULT:NON_TRAIT:study.example.drools.domain.TempSensor:TempSensor(indoorTemp=35)]
matchCreated event.getMatch() = [Rule name=룰 - 실내 온도가 30도 이상이면 에어컨을 켠다, agendaGroup=MAIN, salience=0, no-loop=true]
beforeMatchFired event.getMatch() = [Rule name=룰 - 실내 온도가 30도 이상이면 에어컨을 켠다, agendaGroup=MAIN, salience=0, no-loop=true]
objectUpdated event.getObject().getClass() = class study.example.drools.domain.Device
objectUpdated event.getFactHandle() = [fact 0:1:662786209:-314770286:3:DEFAULT:NON_TRAIT:study.example.drools.domain.Device:Device(id=1, type=AIR_CONDITIONER, operating=true, dummy=[{"name":null,"nameDisplayCoordinate":null,"type":null,"mappedType":null,"description":null,"parentId":null,"registrationStatus":null,"configuration":{"mobilityType":null,"remoteControl":"Permit","time":null,"locationType":null},"modes":[{"id":"AirConditioner_Indoor_IndoorMode","description":null,"enabled":null,"value":"Auto"},{"id":"AirConditioner_Indoor_ErvMode","description":null,"enabled":null,"value":"Auto"},{"id":"AirConditioner_Indoor_DhwMode","description":null,"enabled":null,"value":"Standard"}],"operations":[{"id":"AirConditioner_Indoor_IndoorPower","value":"on"},{"id":"AirConditioner_Indoor_ErvPower","value":"on"},{"id":"AirConditioner_Indoor_DhwPower","value":"on"}],"temperatures":[{"id":"AirConditioner_Indoor_IndoorSetTemp","enabled":null,"unit":null,"desired":24.0},{"id":"AirConditioner_Indoor_WateroutSetTemp","enabled":null,"unit":null,"desired":24.0},{"id":"AirConditioner_Indoor_DhwSetTemp","enabled":null,"unit":null,"desired":40.0}],"meters":null,"lights":null,"id":null,"airConditioner":null}, {"name":null,"nameDisplayCoordinate":null,"type":null,"mappedType":null,"description":null,"parentId":null,"registrationStatus":null,"configuration":{"mobilityType":null,"remoteControl":"Permit","time":null,"locationType":null},"modes":[{"id":"AirConditioner_Indoor_IndoorMode","description":null,"enabled":null,"value":"Auto"},{"id":"AirConditioner_Indoor_ErvMode","description":null,"enabled":null,"value":"Auto"},{"id":"AirConditioner_Indoor_DhwMode","description":null,"enabled":null,"value":"Standard"}],"operations":[{"id":"AirConditioner_Indoor_IndoorPower","value":"on"},{"id":"AirConditioner_Indoor_ErvPower","value":"on"},{"id":"AirConditioner_Indoor_DhwPower","value":"on"}],"temperatures":[{"id":"AirConditioner_Indoor_IndoorSetTemp","enabled":null,"unit":null,"desired":24.0},{"id":"AirConditioner_Indoor_WateroutSetTemp","enabled":null,"unit":null,"desired":24.0},{"id":"AirConditioner_Indoor_DhwSetTemp","enabled":null,"unit":null,"desired":40.0}],"meters":null,"lights":null,"id":null,"airConditioner":null}, {"name":null,"nameDisplayCoordinate":null,"type":null,"mappedType":null,"description":null,"parentId":null,"registrationStatus":null,"configuration":{"mobilityType":null,"remoteControl":"Permit","time":null,"locationType":null},"modes":[{"id":"AirConditioner_Indoor_IndoorMode","description":null,"enabled":null,"value":"Auto"},{"id":"AirConditioner_Indoor_ErvMode","description":null,"enabled":null,"value":"Auto"},{"id":"AirConditioner_Indoor_DhwMode","description":null,"enabled":null,"value":"Standard"}],"operations":[{"id":"AirConditioner_Indoor_IndoorPower","value":"on"},{"id":"AirConditioner_Indoor_ErvPower","value":"on"},{"id":"AirConditioner_Indoor_DhwPower","value":"on"}],"temperatures":[{"id":"AirConditioner_Indoor_IndoorSetTemp","enabled":null,"unit":null,"desired":24.0},{"id":"AirConditioner_Indoor_WateroutSetTemp","enabled":null,"unit":null,"desired":24.0},{"id":"AirConditioner_Indoor_DhwSetTemp","enabled":null,"unit":null,"desired":40.0}],"meters":null,"lights":null,"id":null,"airConditioner":null}, {"name":null,"nameDisplayCoordinate":null,"type":null,"mappedType":null,"description":null,"parentId":null,"registrationStatus":null,"configuration":{"mobilityType":null,"remoteControl":"Permit","time":null,"locationType":null},"modes":[{"id":"AirConditioner_Indoor_IndoorMode","description":null,"enabled":null,"value":"Auto"},{"id":"AirConditioner_Indoor_ErvMode","description":null,"enabled":null,"value":"Auto"},{"id":"AirConditioner_Indoor_DhwMode","description":null,"enabled":null,"value":"Standard"}],"operations":[{"id":"AirConditioner_Indoor_IndoorPower","value":"on"},{"id":"AirConditioner_Indoor_ErvPower","value":"on"},{"id":"AirConditioner_Indoor_DhwPower","value":"on"}],"temperatures":[{"id":"AirConditioner_Indoor_IndoorSetTemp","enabled":null,"unit":null,"desired":24.0},{"id":"AirConditioner_Indoor_WateroutSetTemp","enabled":null,"unit":null,"desired":24.0},{"id":"AirConditioner_Indoor_DhwSetTemp","enabled":null,"unit":null,"desired":40.0}],"meters":null,"lights":null,"id":null,"airConditioner":null}, {"name":null,"nameDisplayCoordinate":null,"type":null,"mappedType":null,"description":null,"parentId":null,"registrationStatus":null,"configuration":{"mobilityType":null,"remoteControl":"Permit","time":null,"locationType":null},"modes":[{"id":"AirConditioner_Indoor_IndoorMode","description":null,"enabled":null,"value":"Auto"},{"id":"AirConditioner_Indoor_ErvMode","description":null,"enabled":null,"value":"Auto"},{"id":"AirConditioner_Indoor_DhwMode","description":null,"enabled":null,"value":"Standard"}],"operations":[{"id":"AirConditioner_Indoor_IndoorPower","value":"on"},{"id":"AirConditioner_Indoor_ErvPower","value":"on"},{"id":"AirConditioner_Indoor_DhwPower","value":"on"}],"temperatures":[{"id":"AirConditioner_Indoor_IndoorSetTemp","enabled":null,"unit":null,"desired":24.0},{"id":"AirConditioner_Indoor_WateroutSetTemp","enabled":null,"unit":null,"desired":24.0},{"id":"AirConditioner_Indoor_DhwSetTemp","enabled":null,"unit":null,"desired":40.0}],"meters":null,"lights":null,"id":null,"airConditioner":null}, {"name":null,"nameDisplayCoordinate":null,"type":null,"mappedType":null,"description":null,"parentId":null,"registrationStatus":null,"configuration":{"mobilityType":null,"remoteControl":"Permit","time":null,"locationType":null},"modes":[{"id":"AirConditioner_Indoor_IndoorMode","description":null,"enabled":null,"value":"Auto"},{"id":"AirConditioner_Indoor_ErvMode","description":null,"enabled":null,"value":"Auto"},{"id":"AirConditioner_Indoor_DhwMode","description":null,"enabled":null,"value":"Standard"}],"operations":[{"id":"AirConditioner_Indoor_IndoorPower","value":"on"},{"id":"AirConditioner_Indoor_ErvPower","value":"on"},{"id":"AirConditioner_Indoor_DhwPower","value":"on"}],"temperatures":[{"id":"AirConditioner_Indoor_IndoorSetTemp","enabled":null,"unit":null,"desired":24.0},{"id":"AirConditioner_Indoor_WateroutSetTemp","enabled":null,"unit":null,"desired":24.0},{"id":"AirConditioner_Indoor_DhwSetTemp","enabled":null,"unit":null,"desired":40.0}],"meters":null,"lights":null,"id":null,"airConditioner":null}, {"name":null,"nameDisplayCoordinate":null,"type":null,"mappedType":null,"description":null,"parentId":null,"registrationStatus":null,"configuration":{"mobilityType":null,"remoteControl":"Permit","time":null,"locationType":null},"modes":[{"id":"AirConditioner_Indoor_IndoorMode","description":null,"enabled":null,"value":"Auto"},{"id":"AirConditioner_Indoor_ErvMode","description":null,"enabled":null,"value":"Auto"},{"id":"AirConditioner_Indoor_DhwMode","description":null,"enabled":null,"value":"Standard"}],"operations":[{"id":"AirConditioner_Indoor_IndoorPower","value":"on"},{"id":"AirConditioner_Indoor_ErvPower","value":"on"},{"id":"AirConditioner_Indoor_DhwPower","value":"on"}],"temperatures":[{"id":"AirConditioner_Indoor_IndoorSetTemp","enabled":null,"unit":null,"desired":24.0},{"id":"AirConditioner_Indoor_WateroutSetTemp","enabled":null,"unit":null,"desired":24.0},{"id":"AirConditioner_Indoor_DhwSetTemp","enabled":null,"unit":null,"desired":40.0}],"meters":null,"lights":null,"id":null,"airConditioner":null}, {"name":null,"nameDisplayCoordinate":null,"type":null,"mappedType":null,"description":null,"parentId":null,"registrationStatus":null,"configuration":{"mobilityType":null,"remoteControl":"Permit","time":null,"locationType":null},"modes":[{"id":"AirConditioner_Indoor_IndoorMode","description":null,"enabled":null,"value":"Auto"},{"id":"AirConditioner_Indoor_ErvMode","description":null,"enabled":null,"value":"Auto"},{"id":"AirConditioner_Indoor_DhwMode","description":null,"enabled":null,"value":"Standard"}],"operations":[{"id":"AirConditioner_Indoor_IndoorPower","value":"on"},{"id":"AirConditioner_Indoor_ErvPower","value":"on"},{"id":"AirConditioner_Indoor_DhwPower","value":"on"}],"temperatures":[{"id":"AirConditioner_Indoor_IndoorSetTemp","enabled":null,"unit":null,"desired":24.0},{"id":"AirConditioner_Indoor_WateroutSetTemp","enabled":null,"unit":null,"desired":24.0},{"id":"AirConditioner_Indoor_DhwSetTemp","enabled":null,"unit":null,"desired":40.0}],"meters":null,"lights":null,"id":null,"airConditioner":null}, {"name":null,"nameDisplayCoordinate":null,"type":null,"mappedType":null,"description":null,"parentId":null,"registrationStatus":null,"configuration":{"mobilityType":null,"remoteControl":"Permit","time":null,"locationType":null},"modes":[{"id":"AirConditioner_Indoor_IndoorMode","description":null,"enabled":null,"value":"Auto"},{"id":"AirConditioner_Indoor_ErvMode","description":null,"enabled":null,"value":"Auto"},{"id":"AirConditioner_Indoor_DhwMode","description":null,"enabled":null,"value":"Standard"}],"operations":[{"id":"AirConditioner_Indoor_IndoorPower","value":"on"},{"id":"AirConditioner_Indoor_ErvPower","value":"on"},{"id":"AirConditioner_Indoor_DhwPower","value":"on"}],"temperatures":[{"id":"AirConditioner_Indoor_IndoorSetTemp","enabled":null,"unit":null,"desired":24.0},{"id":"AirConditioner_Indoor_WateroutSetTemp","enabled":null,"unit":null,"desired":24.0},{"id":"AirConditioner_Indoor_DhwSetTemp","enabled":null,"unit":null,"desired":40.0}],"meters":null,"lights":null,"id":null,"airConditioner":null}, {"name":null,"nameDisplayCoordinate":null,"type":null,"mappedType":null,"description":null,"parentId":null,"registrationStatus":null,"configuration":{"mobilityType":null,"remoteControl":"Permit","time":null,"locationType":null},"modes":[{"id":"AirConditioner_Indoor_IndoorMode","description":null,"enabled":null,"value":"Auto"},{"id":"AirConditioner_Indoor_ErvMode","description":null,"enabled":null,"value":"Auto"},{"id":"AirConditioner_Indoor_DhwMode","description":null,"enabled":null,"value":"Standard"}],"operations":[{"id":"AirConditioner_Indoor_IndoorPower","value":"on"},{"id":"AirConditioner_Indoor_ErvPower","value":"on"},{"id":"AirConditioner_Indoor_DhwPower","value":"on"}],"temperatures":[{"id":"AirConditioner_Indoor_IndoorSetTemp","enabled":null,"unit":null,"desired":24.0},{"id":"AirConditioner_Indoor_WateroutSetTemp","enabled":null,"unit":null,"desired":24.0},{"id":"AirConditioner_Indoor_DhwSetTemp","enabled":null,"unit":null,"desired":40.0}],"meters":null,"lights":null,"id":null,"airConditioner":null}], base={"name":null,"nameDisplayCoordinate":null,"type":null,"mappedType":null,"description":null,"parentId":null,"registrationStatus":null,"configuration":{"mobilityType":null,"remoteControl":"Permit","time":null,"locationType":null},"modes":[{"id":"AirConditioner_Indoor_IndoorMode","description":null,"enabled":null,"value":"Auto"},{"id":"AirConditioner_Indoor_ErvMode","description":null,"enabled":null,"value":"Auto"},{"id":"AirConditioner_Indoor_DhwMode","description":null,"enabled":null,"value":"Standard"}],"operations":[{"id":"AirConditioner_Indoor_IndoorPower","value":"on"},{"id":"AirConditioner_Indoor_ErvPower","value":"on"},{"id":"AirConditioner_Indoor_DhwPower","value":"on"}],"temperatures":[{"id":"AirConditioner_Indoor_IndoorSetTemp","enabled":null,"unit":null,"desired":24.0},{"id":"AirConditioner_Indoor_WateroutSetTemp","enabled":null,"unit":null,"desired":24.0},{"id":"AirConditioner_Indoor_DhwSetTemp","enabled":null,"unit":null,"desired":40.0}],"meters":null,"lights":null,"id":null,"airConditioner":null})]
objectUpdated event.getRule().getName() = 룰 - 실내 온도가 30도 이상이면 에어컨을 켠다

afterMatchFired event.getMatch() = [Rule name=룰 - 실내 온도가 30도 이상이면 에어컨을 켠다, agendaGroup=MAIN, salience=0, no-loop=true]
온도 값 변경 완료 ==> kieSession.getFactCount() = 2

이상으로 간단하게 Drools 룰 엔진을 스프링 부트에 적용해서 테스트 해 보았다. 개인적으로 업무가 아니었으면, 전혀 몰랐을 내용인데, 경험해 볼 수 있어서 좋지만, 깊은 내용은 조금 더 공부하고 경험해봐야 할 것 같다.

참고 사항

Junit 테스트에서는 잘 동작하였는데, Controller를 붙여서 웹 서비스 형태로 동작을 시키니 룰 매칭 동작하지 않는 이슈가 있었다.
확인해 보니, spring-boot-devtools 설정되어 있으면 동작하지 않는다는 내용이 검색되어서 해당 dependency를 제거하니 잘 동작함. 관련 내용은 아래 링크에서 확인 가능하다.
No rules are fired in helloworld using Spring rest controller!
그리고, 이 이슈는 drools 7.26.0.Final 버전에서 수정되어서, 예제 소스에서는 해당 버전으로 변경하였다.

Author And Source

이 문제에 관하여(Spring Boot & Drools 룰 엔진 사용해보기), 우리는 이곳에서 더 많은 자료를 발견하고 링크를 클릭하여 보았다 https://velog.io/@kenux/Spring-Boot-Drools-룰-엔진-사용해보기

우수한 개발자 콘텐츠 발견에 전념 (Collection and Share based on the CC Protocol.)

파이썬 주석

지능 계약 빈틈, 사슬의 아카류스 발뒤꿈치

좋은 웹페이지 즐겨찾기

개발자 우수 사이트 수집

개발자가 알아야 할 필수 사이트 100선 추천 우리는 당신을 위해 100개의 자주 사용하는 개발자 학습 사이트를 정리했습니다