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Spring Webflux and @Cacheable Annotation - moved to new package

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This commit is contained in:
Mladen Savic
2021-11-27 11:10:33 +01:00
parent 61729de780
commit 3a3aa56ad1
13 changed files with 159 additions and 26 deletions
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7
spring-5-webflux-2/README.md Normal file
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## Spring 5 WebFlux 2
This module contains articles about Spring 5 WebFlux
## Relevant articles:
- [Spring Webflux and @Cacheable Annotation](https://www.baeldung.com/spring-webflux-cacheable)

102
spring-5-webflux-2/pom.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<artifactId>spring-5-webflux-2</artifactId>
<name>spring-5-webflux-2</name>
<url>http://www.baeldung.com</url>
<version>1.0-SNAPSHOT</version>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>parent-boot-2</artifactId>
<version>0.0.1-SNAPSHOT</version>
<relativePath>../parent-boot-2</relativePath>
</parent>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.junit</groupId>
<artifactId>junit-bom</artifactId>
<version>${junit-jupiter.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-dependencies</artifactId>
<version>${spring-boot.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-webflux</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter</artifactId>
</exclusion>
<exclusion>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-api</artifactId>
</exclusion>
<exclusion>
<groupId>org.junit.platform</groupId>
<artifactId>junit-plaform-commons</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>io.projectreactor.addons</groupId>
<artifactId>reactor-extra</artifactId>
<version>3.4.5</version>
</dependency>
<dependency>
<groupId>com.github.ben-manes.caffeine</groupId>
<artifactId>caffeine</artifactId>
<version>2.9.2</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-mongodb-reactive</artifactId>
</dependency>
<dependency>
<groupId>io.projectreactor</groupId>
<artifactId>reactor-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.testcontainers</groupId>
<artifactId>mongodb</artifactId>
<version>1.16.2</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.squareup.okhttp3</groupId>
<artifactId>mockwebserver</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>

50
spring-5-webflux-2/src/main/java/caching/Item.java Normal file
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package caching;
import org.springframework.data.annotation.Id;
import org.springframework.data.mongodb.core.mapping.Document;
@Document
public class Item {
@Id
private String _id;
private String name;
private double price;
public Item(String name, double price) {
this.name = name;
this.price = price;
}
public Item() {
}
public String get_id() {
return _id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public double getPrice() {
return price;
}
public void setPrice(double price) {
this.price = price;
}
@Override
public String toString() {
return "Item{" +
"id='" + _id + '\'' +
", name='" + name + '\'' +
", price=" + price +
'}';
}
}

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spring-5-webflux-2/src/main/java/caching/ItemRepository.java Normal file
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package caching;
import org.springframework.data.mongodb.repository.ReactiveMongoRepository;
import org.springframework.stereotype.Repository;
@Repository
public interface ItemRepository extends ReactiveMongoRepository<Item, String> {
}

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spring-5-webflux-2/src/main/java/caching/ItemService.java Normal file
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package caching;
import com.github.benmanes.caffeine.cache.Caffeine;
import com.github.benmanes.caffeine.cache.LoadingCache;
import org.springframework.cache.annotation.Cacheable;
import org.springframework.stereotype.Service;
import reactor.cache.CacheMono;
import reactor.core.publisher.Mono;
@Service
public class ItemService {
private final ItemRepository repository;
private final LoadingCache<String, Object> cache;
public ItemService(ItemRepository repository) {
this.repository = repository;
this.cache = Caffeine.newBuilder()
.build(this::getItem_withAddons);
}
@Cacheable("items")
public Mono<Item> getItem(String id) {
return repository.findById(id);
}
public Mono<Item> save(Item item) {
return repository.save(item);
}
@Cacheable("items")
public Mono<Item> getItem_withCache(String id) {
return repository.findById(id).cache();
}
@Cacheable("items")
public Mono<Item> getItem_withAddons(String id) {
return CacheMono.lookup(cache.asMap(), id)
.onCacheMissResume(() -> repository.findById(id).cast(Object.class)).cast(Item.class);
}
}

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spring-5-webflux-2/src/main/java/caching/SpringWebfluxCachingApplication.java Normal file
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package caching;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.data.mongodb.repository.config.EnableMongoRepositories;
@SpringBootApplication
@EnableMongoRepositories
@EnableCaching
public class SpringWebfluxCachingApplication {
public static void main(String[] args) {
SpringApplication.run(SpringWebfluxCachingApplication.class, args);
}
}

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spring-5-webflux-2/src/main/resources/application-cache.properties Normal file
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logging.level.org.springframework.data.mongodb.core.ReactiveMongoTemplate=DEBUG
logging.level.org.springframework.cache=TRACE

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spring-5-webflux-2/src/main/resources/logback.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<appender name="Console"
class="ch.qos.logback.core.ConsoleAppender">
<layout class="ch.qos.logback.classic.PatternLayout">
<Pattern>
%black(%d{ISO8601}) %highlight(%-5level) [%blue(%t)] %yellow(%C{1.}): %msg%n%throwable
</Pattern>
</layout>
</appender>
<appender name="AccessLog" class="ch.qos.logback.core.FileAppender">
<file>netty-access.log</file>
<encoder>
<pattern>%msg%n</pattern>
</encoder>
</appender>
<appender name="Async" class="ch.qos.logback.classic.AsyncAppender">
<appender-ref ref="AccessLog"/>
</appender>
<logger name="reactor.netty.http.server.AccessLog" level="INFO" additivity="false">
<appender-ref ref="Console"/>
<appender-ref ref="Async"/>
</logger>
<root level="info">
<appender-ref ref="Console"/>
</root>
</configuration>

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spring-5-webflux-2/src/test/java/caching/MonoFluxResultCachingLiveTest.java Normal file
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package caching;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.ActiveProfiles;
import org.springframework.test.context.DynamicPropertyRegistry;
import org.springframework.test.context.DynamicPropertySource;
import org.testcontainers.containers.MongoDBContainer;
import org.testcontainers.utility.DockerImageName;
import reactor.core.publisher.Mono;
import static org.assertj.core.api.Assertions.assertThat;
@SpringBootTest
@ActiveProfiles("cache")
public class MonoFluxResultCachingLiveTest {
@Autowired
ItemService itemService;
final static MongoDBContainer mongoDBContainer = new MongoDBContainer(DockerImageName.parse("mongo:4.0.10"));
@DynamicPropertySource
static void mongoDbProperties(DynamicPropertyRegistry registry) {
mongoDBContainer.start();
registry.add("spring.data.mongodb.uri", mongoDBContainer::getReplicaSetUrl);
}
@Test
public void givenItem_whenGetItemIsCalled_thenMonoIsCached() {
Mono<Item> glass = itemService.save(new Item("glass", 1.00));
String id = glass.block().get_id();
Mono<Item> mono = itemService.getItem(id);
Item item = mono.block();
assertThat(item).isNotNull();
assertThat(item.getName()).isEqualTo("glass");
assertThat(item.getPrice()).isEqualTo(1.00);
Mono<Item> mono2 = itemService.getItem(id);
Item item2 = mono2.block();
assertThat(item2).isNotNull();
assertThat(item2.getName()).isEqualTo("glass");
assertThat(item2.getPrice()).isEqualTo(1.00);
}
@Test
public void givenItem_whenGetItemWithCacheIsCalled_thenMonoResultIsCached() {
Mono<Item> glass = itemService.save(new Item("glass", 1.00));
String id = glass.block().get_id();
Mono<Item> mono = itemService.getItem_withCache(id);
Item item = mono.block();
assertThat(item).isNotNull();
assertThat(item.getName()).isEqualTo("glass");
assertThat(item.getPrice()).isEqualTo(1.00);
Mono<Item> mono2 = itemService.getItem_withCache(id);
Item item2 = mono2.block();
assertThat(item2).isNotNull();
assertThat(item2.getName()).isEqualTo("glass");
assertThat(item2.getPrice()).isEqualTo(1.00);
}
@Test
public void givenItem_whenGetItemWithAddonsIsCalled_thenMonoResultIsCached() {
Mono<Item> glass = itemService.save(new Item("glass", 1.00));
String id = glass.block().get_id();
Mono<Item> mono = itemService.getItem_withAddons(id);
Item item = mono.block();
assertThat(item).isNotNull();
assertThat(item.getName()).isEqualTo("glass");
assertThat(item.getPrice()).isEqualTo(1.00);
Mono<Item> mono2 = itemService.getItem_withAddons(id);
Item item2 = mono2.block();
assertThat(item2).isNotNull();
assertThat(item2.getName()).isEqualTo("glass");
assertThat(item2.getPrice()).isEqualTo(1.00);
}
}

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spring-5-webflux-2/src/test/resources/logback-test.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<appender name="Console" class="ch.qos.logback.core.ConsoleAppender">
<layout class="ch.qos.logback.classic.PatternLayout">
<Pattern>
%black(%d{ISO8601}) %highlight(%-5level) [%blue(%t)] %yellow(%C{1.}): %msg%n%throwable
</Pattern>
</layout>
</appender>
<root level="info">
<appender-ref ref="Console"/>
</root>
</configuration>