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Revert "Revert "Revert "BAEL-7540"""

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This reverts commit fa1c5598b0429200709856c932301ae682a42678.
This commit is contained in:
reza ganji 2024-03-30 13:10:46 +03:30
parent fa1c5598b0
commit 7c93d40044
21 changed files with 63 additions and 217 deletions
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1
spring-5-webflux-2/README.md
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@ -3,7 +3,6 @@
This module contains articles about Spring 5 WebFlux
## Relevant articles:
- [Spring Webflux and @Cacheable Annotation](https://www.baeldung.com/spring-webflux-cacheable)
- [Comparison Between Mono’s doOnNext() and doOnSuccess()](https://www.baeldung.com/mono-doonnext-doonsuccess)
- [How to Access the First Element of a Flux](https://www.baeldung.com/java-flux-first-element)

6
spring-5-webflux-2/pom.xml
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@ -1,7 +1,7 @@
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://maven.apache.org/POM/4.0.0"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<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>
<version>1.0-SNAPSHOT</version>

6
spring-5-webflux-2/src/main/java/com/baeldung/webflux/caching/Item.java
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@ -41,6 +41,10 @@ public class Item {
@Override
public String toString() {
return "Item{" + "id='" + _id + '\'' + ", name='" + name + '\'' + ", price=" + price + '}';
return "Item{" +
"id='" + _id + '\'' +
", name='" + name + '\'' +
", price=" + price +
'}';
}
}

10
spring-5-webflux-2/src/main/java/com/baeldung/webflux/caching/ItemService.java
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@ -16,8 +16,7 @@ public class ItemService {
public ItemService(ItemRepository repository) {
this.repository = repository;
this.cache = Caffeine.newBuilder()
.build(this::getItem_withCaffeine);
this.cache = Caffeine.newBuilder().build(this::getItem_withCaffeine);
}
@Cacheable("items")
@ -31,14 +30,11 @@ public class ItemService {
@Cacheable("items")
public Mono<Item> getItem_withCache(String id) {
return repository.findById(id)
.cache();
return repository.findById(id).cache();
}
@Cacheable("items")
public Mono<Item> getItem_withCaffeine(String id) {
return cache.asMap()
.computeIfAbsent(id, k -> repository.findById(id)
.cast(Item.class));
return cache.asMap().computeIfAbsent(id, k -> repository.findById(id).cast(Item.class));
}
}

35
spring-5-webflux-2/src/main/java/com/baeldung/webflux/exceptionhandeling/controller/UserController.java
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@ -1,35 +0,0 @@
package com.baeldung.webflux.exceptionhandeling.controller;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RestController;
import com.baeldung.webflux.exceptionhandeling.ex.NotFoundException;
import com.baeldung.webflux.exceptionhandeling.repository.UserRepository;
import com.baeldung.webflux.zipwhen.model.User;
import reactor.core.publisher.Mono;
@RestController
public class UserController {
private final UserRepository userRepository;
@Autowired
public UserController(UserRepository userRepository) {
this.userRepository = userRepository;
}
@GetMapping("/user/{id}")
public Mono<User> getUserByIdThrowingException(@PathVariable String id) {
return userRepository.findById(id)
.switchIfEmpty(Mono.error(new NotFoundException("User not found")));
}
@GetMapping("/user/{id}")
public Mono<User> getUserByIdUsingMonoError(@PathVariable String id) {
return userRepository.findById(id)
.switchIfEmpty(Mono.error(() -> new NotFoundException("User not found")));
}
}

12
spring-5-webflux-2/src/main/java/com/baeldung/webflux/exceptionhandeling/ex/NotFoundException.java
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@ -1,12 +0,0 @@
package com.baeldung.webflux.exceptionhandeling.ex;
public class NotFoundException extends RuntimeException {
public NotFoundException(String message) {
super(message);
}
public NotFoundException(String message, Throwable cause) {
super(message, cause);
}
}

29
spring-5-webflux-2/src/main/java/com/baeldung/webflux/exceptionhandeling/model/User.java
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@ -1,29 +0,0 @@
package com.baeldung.webflux.exceptionhandeling.model;
public class User {
private String id;
private String username;
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public User(String userId, String userName) {
this.id=userId;
this.username=userName;
}
}

24
spring-5-webflux-2/src/main/java/com/baeldung/webflux/exceptionhandeling/repository/UserRepository.java
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@ -1,24 +0,0 @@
package com.baeldung.webflux.exceptionhandeling.repository;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import org.springframework.stereotype.Repository;
import com.baeldung.webflux.zipwhen.model.User;
import reactor.core.publisher.Mono;
@Repository
public class UserRepository {
private final Map<String, User> userDatabase = new ConcurrentHashMap<>();
public UserRepository() {
userDatabase.put("1", new User("1", "John Doe"));
userDatabase.put("2", new User("2", "Jane Smith"));
}
public Mono<User> findById(String id) {
return Mono.justOrEmpty(userDatabase.get(id));
}
}

4
spring-5-webflux-2/src/main/java/com/baeldung/webflux/filerecord/FileRecord.java
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@ -1,9 +1,9 @@
package com.baeldung.webflux.filerecord;
import java.util.List;
import org.springframework.data.annotation.Id;
import java.util.List;
public class FileRecord {
@Id
private int id;

3
spring-5-webflux-2/src/main/java/com/baeldung/webflux/filerecord/FileRecordApplication.java
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@ -1,5 +1,6 @@
package com.baeldung.webflux.filerecord;
import io.r2dbc.spi.ConnectionFactory;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.Bean;
@ -7,8 +8,6 @@ import org.springframework.core.io.ClassPathResource;
import org.springframework.r2dbc.connection.init.ConnectionFactoryInitializer;
import org.springframework.r2dbc.connection.init.ResourceDatabasePopulator;
import io.r2dbc.spi.ConnectionFactory;
@SpringBootApplication
public class FileRecordApplication {

7
spring-5-webflux-2/src/main/java/com/baeldung/webflux/filerecord/FileRecordController.java
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@ -1,13 +1,12 @@
package com.baeldung.webflux.filerecord;
import java.nio.file.Paths;
import org.springframework.http.codec.multipart.FilePart;
import org.springframework.web.bind.annotation.*;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
import java.nio.file.Paths;
@RestController
public class FileRecordController {
@ -29,7 +28,7 @@ public class FileRecordController {
FileRecord fileRecord = new FileRecord();
return filePartFlux.flatMap(filePart -> filePart.transferTo(Paths.get(filePart.filename()))
.then(Mono.just(filePart.filename())))
.then(Mono.just(filePart.filename())))
.collectList()
.flatMap(filenames -> {
fileRecord.setFilenames(filenames);

1
spring-5-webflux-2/src/main/java/com/baeldung/webflux/filerecord/FileRecordService.java
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@ -1,7 +1,6 @@
package com.baeldung.webflux.filerecord;
import org.springframework.stereotype.Service;
import reactor.core.publisher.Mono;
@Service

1
spring-5-webflux-2/src/main/java/com/baeldung/webflux/model/Payment.java
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@ -1,5 +1,6 @@
package com.baeldung.webflux.model;
public class Payment {
private final int amount;

10
spring-5-webflux-2/src/main/java/com/baeldung/webflux/zipwhen/service/EmailService.java
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@ -11,10 +11,10 @@ public class EmailService {
public Mono<Boolean> sendEmail(String userId) {
return userService.getUser(userId)
.flatMap(user -> {
System.out.println("Sending email to: " + user.getEmail());
return Mono.just(true);
})
.defaultIfEmpty(false);
.flatMap(user -> {
System.out.println("Sending email to: " + user.getEmail());
return Mono.just(true);
})
.defaultIfEmpty(false);
}
}

16
spring-5-webflux-2/src/main/java/com/baeldung/webflux/zipwhen/web/UserController.java
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@ -28,16 +28,16 @@ public class UserController {
public Mono<ResponseEntity<String>> combineAllDataFor(@PathVariable String userId) {
Mono<User> userMono = userService.getUser(userId);
Mono<Boolean> emailSentMono = emailService.sendEmail(userId)
.subscribeOn(Schedulers.parallel());
.subscribeOn(Schedulers.parallel());
Mono<String> databaseResultMono = userMono.flatMap(user -> databaseService.saveUserData(user)
.map(Object::toString));
.map(Object::toString));
return userMono.zipWhen(user -> emailSentMono, Tuples::of)
.zipWhen(tuple -> databaseResultMono, (tuple, databaseResult) -> {
User user = tuple.getT1();
Boolean emailSent = tuple.getT2();
return ResponseEntity.ok()
.body("Response: " + user + ", Email Sent: " + emailSent + ", Database Result: " + databaseResult);
});
.zipWhen(tuple -> databaseResultMono, (tuple, databaseResult) -> {
User user = tuple.getT1();
Boolean emailSent = tuple.getT2();
return ResponseEntity.ok()
.body("Response: " + user + ", Email Sent: " + emailSent + ", Database Result: " + databaseResult);
});
}
}

2
spring-5-webflux-2/src/main/resources/logback.xml
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@ -1,7 +1,7 @@
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<appender name="Console"
class="ch.qos.logback.core.ConsoleAppender">
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

41
spring-5-webflux-2/src/test/java/com/baeldung/webflux/caching/MonoFluxResultCachingLiveTest.java
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@ -1,6 +1,5 @@
package com.baeldung.webflux.caching;
import static org.assertj.core.api.Assertions.assertThat;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
@ -13,10 +12,13 @@ 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;
@ -28,34 +30,32 @@ public class MonoFluxResultCachingLiveTest {
registry.add("spring.data.mongodb.uri", mongoDBContainer::getReplicaSetUrl);
}
@Test
public void givenItem_whenGetItemIsCalled_thenMonoIsCached() {
Mono<Item> glass = itemService.save(new Item("glass", 1.00));
@Test
public void givenItem_whenGetItemIsCalled_thenMonoIsCached() {
Mono<Item> glass = itemService.save(new Item("glass", 1.00));
String id = glass.block()
.get_id();
String id = glass.block().get_id();
Mono<Item> mono = itemService.getItem(id);
Item item = mono.block();
Mono<Item> mono = itemService.getItem(id);
Item item = mono.block();
assertThat(item).isNotNull();
assertThat(item.getName()).isEqualTo("glass");
assertThat(item.getPrice()).isEqualTo(1.00);
assertThat(item).isNotNull();
assertThat(item.getName()).isEqualTo("glass");
assertThat(item.getPrice()).isEqualTo(1.00);
Mono<Item> mono2 = itemService.getItem(id);
Item item2 = mono2.block();
Mono<Item> mono2 = itemService.getItem(id);
Item item2 = mono2.block();
assertThat(item2).isNotNull();
assertThat(item2.getName()).isEqualTo("glass");
assertThat(item2.getPrice()).isEqualTo(1.00);
}
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();
String id = glass.block().get_id();
Mono<Item> mono = itemService.getItem_withCache(id);
Item item = mono.block();
@ -76,8 +76,7 @@ public class MonoFluxResultCachingLiveTest {
public void givenItem_whenGetItemWithCaffeineIsCalled_thenMonoResultIsCached() {
Mono<Item> glass = itemService.save(new Item("glass", 1.00));
String id = glass.block()
.get_id();
String id = glass.block().get_id();
Mono<Item> mono = itemService.getItem_withCaffeine(id);
Item item = mono.block();

48
spring-5-webflux-2/src/test/java/com/baeldung/webflux/exceptionhandeling/UserControllerUnitTest.java
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@ -1,48 +0,0 @@
package com.baeldung.webflux.exceptionhandeling;
import org.junit.jupiter.api.Test;
import org.mockito.InjectMocks;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;
import reactor.core.publisher.Mono;
import reactor.test.StepVerifier;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.mockito.Mockito.when;
import com.baeldung.webflux.exceptionhandeling.controller.UserController;
import com.baeldung.webflux.exceptionhandeling.ex.NotFoundException;
import com.baeldung.webflux.exceptionhandeling.repository.UserRepository;
public class UserControllerUnitTest {
@Mock
private UserRepository userRepository;
@InjectMocks
private UserController userController;
public UserControllerUnitTest() {
MockitoAnnotations.initMocks(this);
}
@Test
public void testGetUserByIdUsingMonoError_UserNotFound() {
String userId = "3";
when(userRepository.findById(userId)).thenReturn(Mono.empty());
StepVerifier.create(userController.getUserByIdUsingMonoError(userId))
.expectError(NotFoundException.class)
.verify();
}
@Test
public void testGetUserByIdThrowingException_UserNotFound() {
String userId = "3";
when(userRepository.findById(userId)).thenReturn(Mono.empty());
assertThrows(NotFoundException.class, () -> userController.getUserByIdThrowingException(userId)
.block());
}
}

11
spring-5-webflux-2/src/test/java/com/baeldung/webflux/filerecord/FileRecordControllerIntegrationTest.java
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@ -1,10 +1,5 @@
package com.baeldung.webflux.filerecord;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.Mockito.when;
import java.util.List;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.springframework.beans.factory.annotation.Autowired;
@ -18,9 +13,13 @@ import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit.jupiter.SpringExtension;
import org.springframework.test.web.reactive.server.WebTestClient;
import org.springframework.util.LinkedMultiValueMap;
import reactor.core.publisher.Mono;
import java.util.List;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.Mockito.when;
@ExtendWith(SpringExtension.class)
@SpringBootTest(classes = FileRecordController.class)
@ContextConfiguration(classes = { FileRecordController.class })

1
spring-5-webflux-2/src/test/java/com/baeldung/webflux/firstelementofflux/FirstElementOfFluxUnitTest.java
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@ -7,7 +7,6 @@ import java.util.Optional;
import org.junit.jupiter.api.Test;
import com.baeldung.webflux.model.Payment;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
import reactor.test.StepVerifier;

12
spring-5-webflux-2/src/test/java/com/baeldung/webflux/zipwhen/UserControllerUnitTest.java
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@ -25,19 +25,19 @@ public class UserControllerUnitTest {
User user = new User(userId, "John Doe");
Mockito.when(userService.getUser(userId))
.thenReturn(Mono.just(user));
.thenReturn(Mono.just(user));
Mockito.when(emailService.sendEmail(userId))
.thenReturn(Mono.just(true));
.thenReturn(Mono.just(true));
Mockito.when(databaseService.saveUserData(user))
.thenReturn(Mono.just(true));
.thenReturn(Mono.just(true));
UserController userController = new UserController(userService, emailService, databaseService);
Mono<ResponseEntity<String>> responseMono = userController.combineAllDataFor(userId);
StepVerifier.create(responseMono)
.expectNextMatches(responseEntity -> responseEntity.getStatusCode() == HttpStatus.OK && responseEntity.getBody()
.equals("Response: " + user + ", Email Sent: true, Database Result: " + true))
.verifyComplete();
.expectNextMatches(responseEntity -> responseEntity.getStatusCode() == HttpStatus.OK && responseEntity.getBody()
.equals("Response: " + user + ", Email Sent: true, Database Result: " + true))
.verifyComplete();
}
}