From da2fae3f88cb242de1f76d58cb52be2171b504ae Mon Sep 17 00:00:00 2001 From: ydvorzhetskiy Date: Tue, 9 Aug 2022 23:03:13 +0600 Subject: [PATCH] 21 --- 2022-05/spring-21/.gitignore | 24 ++++++++ 2022-05/spring-21/pom.xml | 18 ++++++ .../spring-21-reactive-spring-data/pom.xml | 50 ++++++++++++++++ .../src/main/java/ru/otus/spring/Main.java | 42 ++++++++++++++ .../java/ru/otus/spring/domain/Account.java | 37 ++++++++++++ .../java/ru/otus/spring/domain/Person.java | 27 +++++++++ .../spring/repostory/AccountRepository.java | 7 +++ .../spring/repostory/PersonRepository.java | 15 +++++ .../src/main/resources/application.yml | 0 2022-05/spring-21/spring-21-reactor/pom.xml | 41 +++++++++++++ .../src/main/java/ru/otus/spring/Main.java | 20 +++++++ .../java/ru/otus/spring/reactor/Message.java | 14 +++++ .../reactor/ReactiveProcessingService.java | 58 +++++++++++++++++++ .../otus/spring/service/NonFluxService.java | 25 ++++++++ 2022-05/spring-21/spring-21-web-flux/pom.xml | 45 ++++++++++++++ .../src/main/java/ru/otus/spring/Main.java | 14 +++++ .../ru/otus/spring/ReactorController.java | 34 +++++++++++ .../ru/otus/spring/RxJava2Controller.java | 20 +++++++ 18 files changed, 491 insertions(+) create mode 100644 2022-05/spring-21/.gitignore create mode 100644 2022-05/spring-21/pom.xml create mode 100644 2022-05/spring-21/spring-21-reactive-spring-data/pom.xml create mode 100644 2022-05/spring-21/spring-21-reactive-spring-data/src/main/java/ru/otus/spring/Main.java create mode 100644 2022-05/spring-21/spring-21-reactive-spring-data/src/main/java/ru/otus/spring/domain/Account.java create mode 100644 2022-05/spring-21/spring-21-reactive-spring-data/src/main/java/ru/otus/spring/domain/Person.java create mode 100644 2022-05/spring-21/spring-21-reactive-spring-data/src/main/java/ru/otus/spring/repostory/AccountRepository.java create mode 100644 2022-05/spring-21/spring-21-reactive-spring-data/src/main/java/ru/otus/spring/repostory/PersonRepository.java create mode 100644 2022-05/spring-21/spring-21-reactive-spring-data/src/main/resources/application.yml create mode 100644 2022-05/spring-21/spring-21-reactor/pom.xml create mode 100644 2022-05/spring-21/spring-21-reactor/src/main/java/ru/otus/spring/Main.java create mode 100644 2022-05/spring-21/spring-21-reactor/src/main/java/ru/otus/spring/reactor/Message.java create mode 100644 2022-05/spring-21/spring-21-reactor/src/main/java/ru/otus/spring/reactor/ReactiveProcessingService.java create mode 100644 2022-05/spring-21/spring-21-reactor/src/main/java/ru/otus/spring/service/NonFluxService.java create mode 100644 2022-05/spring-21/spring-21-web-flux/pom.xml create mode 100644 2022-05/spring-21/spring-21-web-flux/src/main/java/ru/otus/spring/Main.java create mode 100644 2022-05/spring-21/spring-21-web-flux/src/main/java/ru/otus/spring/ReactorController.java create mode 100644 2022-05/spring-21/spring-21-web-flux/src/main/java/ru/otus/spring/RxJava2Controller.java diff --git a/2022-05/spring-21/.gitignore b/2022-05/spring-21/.gitignore new file mode 100644 index 00000000..4ea52072 --- /dev/null +++ b/2022-05/spring-21/.gitignore @@ -0,0 +1,24 @@ +target/ + +### STS ### +.apt_generated +.classpath +.factorypath +.project +.settings +.springBeans +.sts4-cache + +### IntelliJ IDEA ### +.idea +*.iws +*.iml +*.ipr + +### NetBeans ### +/nbproject/private/ +/build/ +/nbbuild/ +/dist/ +/nbdist/ +/.nb-gradle/ diff --git a/2022-05/spring-21/pom.xml b/2022-05/spring-21/pom.xml new file mode 100644 index 00000000..ad4f8eda --- /dev/null +++ b/2022-05/spring-21/pom.xml @@ -0,0 +1,18 @@ + + + 4.0.0 + + ru.otus + spring-21 + 1.0 + + pom + + + spring-21-web-flux + spring-21-reactor + spring-21-reactive-spring-data + + diff --git a/2022-05/spring-21/spring-21-reactive-spring-data/pom.xml b/2022-05/spring-21/spring-21-reactive-spring-data/pom.xml new file mode 100644 index 00000000..0b9b89b1 --- /dev/null +++ b/2022-05/spring-21/spring-21-reactive-spring-data/pom.xml @@ -0,0 +1,50 @@ + + + 4.0.0 + + ru.otus + spring-21-reactive-spring-data + 1.0 + + + org.springframework.boot + spring-boot-starter-parent + 2.5.6 + + + + + 11 + + + + + org.springframework.boot + spring-boot-starter + + + + org.springframework.boot + spring-boot-starter-data-mongodb-reactive + + + org.mongodb + mongodb-driver-reactivestreams + + + de.flapdoodle.embed + de.flapdoodle.embed.mongo + + + + + + + org.springframework.boot + spring-boot-maven-plugin + + + + diff --git a/2022-05/spring-21/spring-21-reactive-spring-data/src/main/java/ru/otus/spring/Main.java b/2022-05/spring-21/spring-21-reactive-spring-data/src/main/java/ru/otus/spring/Main.java new file mode 100644 index 00000000..e68a7f08 --- /dev/null +++ b/2022-05/spring-21/spring-21-reactive-spring-data/src/main/java/ru/otus/spring/Main.java @@ -0,0 +1,42 @@ +package ru.otus.spring; + +import org.springframework.boot.SpringApplication; +import org.springframework.boot.autoconfigure.SpringBootApplication; +import org.springframework.context.ApplicationContext; +import reactor.core.publisher.Flux; +import ru.otus.spring.domain.Person; +import ru.otus.spring.repostory.AccountRepository; +import ru.otus.spring.repostory.PersonRepository; + +import java.util.List; + +@SpringBootApplication +public class Main { + + public static void main(String[] args) throws InterruptedException { + ApplicationContext context = SpringApplication.run(Main.class); + + PersonRepository repository = context.getBean(PersonRepository.class); + AccountRepository accountRepository = context.getBean(AccountRepository.class); + + var persons = List.of( + new Person("Pushkin"), + new Person("Lermontov")); + + // subscribe блокирует текущий поток и дожидается Flux + repository.saveAll(persons) + .subscribe(); + + // а вот это уже неблокирующий subscribe + repository.findAll() + .map(Person::getName) + .subscribe(System.out::println); + + // Пример объединения двух Flux + Flux.merge(repository.findAll(), repository.findAll()) + .map(Person::getName) + .subscribe(System.out::println); + + Thread.sleep(20000); + } +} diff --git a/2022-05/spring-21/spring-21-reactive-spring-data/src/main/java/ru/otus/spring/domain/Account.java b/2022-05/spring-21/spring-21-reactive-spring-data/src/main/java/ru/otus/spring/domain/Account.java new file mode 100644 index 00000000..0f34a772 --- /dev/null +++ b/2022-05/spring-21/spring-21-reactive-spring-data/src/main/java/ru/otus/spring/domain/Account.java @@ -0,0 +1,37 @@ +package ru.otus.spring.domain; + +public class Account { + private String id; + private String personId; + private Long amount; + + public Account(String id, String personId, Long amount) { + this.id = id; + this.personId = personId; + this.amount = amount; + } + + public String getId() { + return id; + } + + public void setId(String id) { + this.id = id; + } + + public String getPersonId() { + return personId; + } + + public void setPersonId(String personId) { + this.personId = personId; + } + + public Long getAmount() { + return amount; + } + + public void setAmount(Long amount) { + this.amount = amount; + } +} diff --git a/2022-05/spring-21/spring-21-reactive-spring-data/src/main/java/ru/otus/spring/domain/Person.java b/2022-05/spring-21/spring-21-reactive-spring-data/src/main/java/ru/otus/spring/domain/Person.java new file mode 100644 index 00000000..2bdc3894 --- /dev/null +++ b/2022-05/spring-21/spring-21-reactive-spring-data/src/main/java/ru/otus/spring/domain/Person.java @@ -0,0 +1,27 @@ +package ru.otus.spring.domain; + +public class Person { + + private String id; + private String name; + + public Person(String name) { + this.name = name; + } + + public String getId() { + return id; + } + + public void setId(String id) { + this.id = id; + } + + public String getName() { + return name; + } + + public void setName(String name) { + this.name = name; + } +} diff --git a/2022-05/spring-21/spring-21-reactive-spring-data/src/main/java/ru/otus/spring/repostory/AccountRepository.java b/2022-05/spring-21/spring-21-reactive-spring-data/src/main/java/ru/otus/spring/repostory/AccountRepository.java new file mode 100644 index 00000000..a06fcdb3 --- /dev/null +++ b/2022-05/spring-21/spring-21-reactive-spring-data/src/main/java/ru/otus/spring/repostory/AccountRepository.java @@ -0,0 +1,7 @@ +package ru.otus.spring.repostory; + +import org.springframework.data.mongodb.repository.ReactiveMongoRepository; +import ru.otus.spring.domain.Account; + +public interface AccountRepository extends ReactiveMongoRepository { +} diff --git a/2022-05/spring-21/spring-21-reactive-spring-data/src/main/java/ru/otus/spring/repostory/PersonRepository.java b/2022-05/spring-21/spring-21-reactive-spring-data/src/main/java/ru/otus/spring/repostory/PersonRepository.java new file mode 100644 index 00000000..26b562e2 --- /dev/null +++ b/2022-05/spring-21/spring-21-reactive-spring-data/src/main/java/ru/otus/spring/repostory/PersonRepository.java @@ -0,0 +1,15 @@ +package ru.otus.spring.repostory; + +import org.springframework.data.mongodb.repository.Query; +import org.springframework.data.mongodb.repository.ReactiveMongoRepository; +import reactor.core.publisher.Flux; +import reactor.core.publisher.Mono; +import ru.otus.spring.domain.Person; + +public interface PersonRepository extends ReactiveMongoRepository { + + Flux findByName(String name); + + @Query("{ 'name': ?0 }") + Mono findFirstByName(String name); +} diff --git a/2022-05/spring-21/spring-21-reactive-spring-data/src/main/resources/application.yml b/2022-05/spring-21/spring-21-reactive-spring-data/src/main/resources/application.yml new file mode 100644 index 00000000..e69de29b diff --git a/2022-05/spring-21/spring-21-reactor/pom.xml b/2022-05/spring-21/spring-21-reactor/pom.xml new file mode 100644 index 00000000..b583fdc7 --- /dev/null +++ b/2022-05/spring-21/spring-21-reactor/pom.xml @@ -0,0 +1,41 @@ + + + 4.0.0 + + ru.otus + spring-21-reactor + 1.0 + + + org.springframework.boot + spring-boot-starter-parent + 2.6.3 + + + + + 11 + + + + + org.springframework.boot + spring-boot-starter + + + io.projectreactor + reactor-core + + + + + + + org.springframework.boot + spring-boot-maven-plugin + + + + diff --git a/2022-05/spring-21/spring-21-reactor/src/main/java/ru/otus/spring/Main.java b/2022-05/spring-21/spring-21-reactor/src/main/java/ru/otus/spring/Main.java new file mode 100644 index 00000000..ff27392b --- /dev/null +++ b/2022-05/spring-21/spring-21-reactor/src/main/java/ru/otus/spring/Main.java @@ -0,0 +1,20 @@ +package ru.otus.spring; + +import org.springframework.boot.SpringApplication; +import org.springframework.boot.autoconfigure.SpringBootApplication; +import org.springframework.context.ConfigurableApplicationContext; +import ru.otus.spring.reactor.ReactiveProcessingService; + +@SpringBootApplication +public class Main { + + public static void main(String[] args) { + ConfigurableApplicationContext context = SpringApplication.run(Main.class); + + ReactiveProcessingService service = context.getBean(ReactiveProcessingService.class); + + service.printHello("Ivan"); + } +} + + diff --git a/2022-05/spring-21/spring-21-reactor/src/main/java/ru/otus/spring/reactor/Message.java b/2022-05/spring-21/spring-21-reactor/src/main/java/ru/otus/spring/reactor/Message.java new file mode 100644 index 00000000..ac58a62c --- /dev/null +++ b/2022-05/spring-21/spring-21-reactor/src/main/java/ru/otus/spring/reactor/Message.java @@ -0,0 +1,14 @@ +package ru.otus.spring.reactor; + +public class Message { + + private final String value; + + public Message(String value) { + this.value = value; + } + + public String getValue() { + return value; + } +} diff --git a/2022-05/spring-21/spring-21-reactor/src/main/java/ru/otus/spring/reactor/ReactiveProcessingService.java b/2022-05/spring-21/spring-21-reactor/src/main/java/ru/otus/spring/reactor/ReactiveProcessingService.java new file mode 100644 index 00000000..99836fe0 --- /dev/null +++ b/2022-05/spring-21/spring-21-reactor/src/main/java/ru/otus/spring/reactor/ReactiveProcessingService.java @@ -0,0 +1,58 @@ +package ru.otus.spring.reactor; + +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; +import org.springframework.stereotype.Service; +import reactor.core.Disposable; +import reactor.core.publisher.Sinks; +import ru.otus.spring.service.NonFluxService; + +import javax.annotation.PreDestroy; + +@Service +public class ReactiveProcessingService { + + private final Logger logger = LoggerFactory.getLogger(ReactiveProcessingService.class); + + private final Sinks.Many sink; + private final Disposable flow; + + public ReactiveProcessingService(NonFluxService nonFluxService) { + // Создаём sink (ранее - процессор) + // Это reactor-овская реализация reactive-stream интерфейса + // Обрабатывает данные как простой последовательный вызов методов :) + sink = Sinks.many().multicast().directBestEffort(); + // Здесь мы настраиваем flow + flow = sink.asFlux() + .map(nonFluxService::nonFluxSayHello) + .subscribe(this::printMessage); + // в идеале в коде выше должен быть doOnNext + // в map не предполагаются задержки + } + + /** + * Этот метод будет инициировать асинхронную обрабтку сообщения + * + * @param name это имя будет приходить из не-reactor окружения + */ + public void printHello(String name) { + sink.tryEmitNext(new Message(name)); + } + + /** + * А это терминальный шаг для сообщения + * + * @param message а это финальный шаг для сообщения, отсюда можно вернуть рзультат в не-реактив окружение + */ + private void printMessage(Message message) { + logger.info("Message received: {}", message.getValue()); + } + + /** + * Просто пример, как остановить процесс + */ + @PreDestroy + public void dispose() { + this.flow.dispose(); + } +} diff --git a/2022-05/spring-21/spring-21-reactor/src/main/java/ru/otus/spring/service/NonFluxService.java b/2022-05/spring-21/spring-21-reactor/src/main/java/ru/otus/spring/service/NonFluxService.java new file mode 100644 index 00000000..848971ed --- /dev/null +++ b/2022-05/spring-21/spring-21-reactor/src/main/java/ru/otus/spring/service/NonFluxService.java @@ -0,0 +1,25 @@ +package ru.otus.spring.service; + +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; +import org.springframework.stereotype.Service; +import ru.otus.spring.reactor.Message; + +@Service +public class NonFluxService { + + private final Logger logger = LoggerFactory.getLogger(NonFluxService.class); + + public Message nonFluxSayHello(Message message) { + logger.info("Message received in non-flux service: {}", message.getValue()); + + String name = message.getValue(); + String withHello = "Hello, " + name + "!"; + try { + Thread.sleep(1000); + return new Message(withHello); + } catch (InterruptedException ex) { + return new Message(withHello); + } + } +} diff --git a/2022-05/spring-21/spring-21-web-flux/pom.xml b/2022-05/spring-21/spring-21-web-flux/pom.xml new file mode 100644 index 00000000..f359099b --- /dev/null +++ b/2022-05/spring-21/spring-21-web-flux/pom.xml @@ -0,0 +1,45 @@ + + + 4.0.0 + + ru.otus + spring-21-web-flux + 1.0 + + + org.springframework.boot + spring-boot-starter-parent + 2.6.3 + + + + + 11 + + + + + org.springframework.boot + spring-boot-starter-webflux + + + + + io.reactivex.rxjava2 + rxjava + + + + + + + org.springframework.boot + spring-boot-maven-plugin + + + + diff --git a/2022-05/spring-21/spring-21-web-flux/src/main/java/ru/otus/spring/Main.java b/2022-05/spring-21/spring-21-web-flux/src/main/java/ru/otus/spring/Main.java new file mode 100644 index 00000000..cad1ae76 --- /dev/null +++ b/2022-05/spring-21/spring-21-web-flux/src/main/java/ru/otus/spring/Main.java @@ -0,0 +1,14 @@ +package ru.otus.spring; + +import org.springframework.boot.SpringApplication; +import org.springframework.boot.autoconfigure.SpringBootApplication; + +@SpringBootApplication +public class Main { + + public static void main(String[] args) { + SpringApplication.run(Main.class); + } +} + + diff --git a/2022-05/spring-21/spring-21-web-flux/src/main/java/ru/otus/spring/ReactorController.java b/2022-05/spring-21/spring-21-web-flux/src/main/java/ru/otus/spring/ReactorController.java new file mode 100644 index 00000000..ef1b72ac --- /dev/null +++ b/2022-05/spring-21/spring-21-web-flux/src/main/java/ru/otus/spring/ReactorController.java @@ -0,0 +1,34 @@ +package ru.otus.spring; + +import org.springframework.http.MediaType; +import org.springframework.web.bind.annotation.GetMapping; +import org.springframework.web.bind.annotation.RestController; +import reactor.core.publisher.Flux; +import reactor.core.publisher.Mono; + +import java.time.Duration; + +@RestController +public class ReactorController { + + @GetMapping("/flux/one") + public Mono one() { + return Mono.just("one"); + } + + @GetMapping("/flux/ten") + public Flux list() { + return repository.findAll() + .map(); + } + + @GetMapping(path = "/flux/stream", produces = MediaType.TEXT_EVENT_STREAM_VALUE) + public Flux stream() { + return Flux.generate(() -> 0, (state, emitter) -> { + emitter.next(state); + return state + 1; + }) + .delayElements(Duration.ofSeconds(1L)) + .map(Object::toString); + } +} diff --git a/2022-05/spring-21/spring-21-web-flux/src/main/java/ru/otus/spring/RxJava2Controller.java b/2022-05/spring-21/spring-21-web-flux/src/main/java/ru/otus/spring/RxJava2Controller.java new file mode 100644 index 00000000..edf0035f --- /dev/null +++ b/2022-05/spring-21/spring-21-web-flux/src/main/java/ru/otus/spring/RxJava2Controller.java @@ -0,0 +1,20 @@ +package ru.otus.spring; + +import io.reactivex.Flowable; +import io.reactivex.Single; +import org.springframework.web.bind.annotation.GetMapping; +import org.springframework.web.bind.annotation.RestController; + +@RestController +public class RxJava2Controller { + + @GetMapping("/rx/one") + public Single single() { + return Single.just("one"); + } + + @GetMapping("/rx/ten") + public Flowable list() { + return Flowable.range(1, 10); + } +}