Merge branch 'master' of https://github.com/eugenp/tutorials into BAEL-1433

libraries/pom.xml

@@ -633,9 +633,26 @@
           <version>${googleclient.version}</version>
         </dependency>
         <dependency>
-            <groupId>com.google.http-client</groupId>
-            <artifactId>google-http-client-gson</artifactId>
-            <version>${googleclient.version}</version>
+          <groupId>com.google.http-client</groupId>
+          <artifactId>google-http-client-gson</artifactId>
+          <version>${googleclient.version}</version>
+        </dependency>
+
+        <!-- google api -->
+        <dependency>
+          <groupId>com.google.api-client</groupId>
+          <artifactId>google-api-client</artifactId>
+          <version>${google-api.version}</version>
+        </dependency>
+        <dependency>
+          <groupId>com.google.oauth-client</groupId>
+          <artifactId>google-oauth-client-jetty</artifactId>
+          <version>${google-api.version}</version>
+        </dependency>
+        <dependency>
+          <groupId>com.google.apis</groupId>
+          <artifactId>google-api-services-sheets</artifactId>
+          <version>${google-sheets.version}</version>
         </dependency>
     </dependencies>
     <repositories>
@@ -710,5 +727,7 @@
         <cache.version>1.0.0</cache.version>
         <hazelcast.version>3.8.4</hazelcast.version>
         <caffeine.version>2.5.5</caffeine.version>
+        <google-api.version>1.23.0</google-api.version>
+        <google-sheets.version>v4-rev493-1.21.0</google-sheets.version>
     </properties>
 </project>

libraries/src/main/java/com/baeldung/google/sheets/GoogleAuthorizeUtil.java

@@ -0,0 +1,42 @@
+package com.baeldung.google.sheets;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.security.GeneralSecurityException;
+import java.util.Arrays;
+import java.util.List;
+
+import com.google.api.client.auth.oauth2.Credential;
+import com.google.api.client.extensions.java6.auth.oauth2.AuthorizationCodeInstalledApp;
+import com.google.api.client.extensions.jetty.auth.oauth2.LocalServerReceiver;
+import com.google.api.client.googleapis.auth.oauth2.GoogleAuthorizationCodeFlow;
+import com.google.api.client.googleapis.auth.oauth2.GoogleClientSecrets;
+import com.google.api.client.googleapis.javanet.GoogleNetHttpTransport;
+import com.google.api.client.json.jackson2.JacksonFactory;
+import com.google.api.client.util.store.MemoryDataStoreFactory;
+import com.google.api.services.sheets.v4.SheetsScopes;
+
+public class GoogleAuthorizeUtil {
+    public static Credential authorize() throws IOException, GeneralSecurityException {
+        InputStream in = GoogleAuthorizeUtil.class.getResourceAsStream("/google-sheets-client-secret.json");
+        GoogleClientSecrets clientSecrets = GoogleClientSecrets
+          .load(JacksonFactory.getDefaultInstance(), new InputStreamReader(in));
+
+        List<String> scopes = Arrays.asList(SheetsScopes.SPREADSHEETS);
+
+        GoogleAuthorizationCodeFlow flow = new GoogleAuthorizationCodeFlow
+          .Builder(GoogleNetHttpTransport.newTrustedTransport(), 
+                   JacksonFactory.getDefaultInstance(),
+                   clientSecrets,
+                   scopes)
+          .setDataStoreFactory(new MemoryDataStoreFactory())
+          .setAccessType("offline")
+          .build();
+        Credential credential = new AuthorizationCodeInstalledApp(flow, new LocalServerReceiver())
+          .authorize("user");
+
+        return credential;
+    }
+
+}

libraries/src/main/java/com/baeldung/google/sheets/SheetsServiceUtil.java

@@ -0,0 +1,23 @@
+package com.baeldung.google.sheets;
+
+import java.io.IOException;
+import java.security.GeneralSecurityException;
+
+import com.google.api.client.auth.oauth2.Credential;
+import com.google.api.client.googleapis.javanet.GoogleNetHttpTransport;
+import com.google.api.client.json.jackson2.JacksonFactory;
+import com.google.api.services.sheets.v4.Sheets;
+
+public class SheetsServiceUtil {
+
+    private static final String APPLICATION_NAME = "Google Sheets Example";
+
+    public static Sheets getSheetsService() throws IOException, GeneralSecurityException {
+        Credential credential = GoogleAuthorizeUtil.authorize();
+        return new Sheets.Builder(GoogleNetHttpTransport.newTrustedTransport(), 
+                                  JacksonFactory.getDefaultInstance(), credential)
+          .setApplicationName(APPLICATION_NAME)
+          .build();
+    }
+
+}

libraries/src/main/resources/google-sheets-client-secret.json

@@ -0,0 +1 @@
+{"installed":{"client_id":"394827218507-2ev02b2ha8plt7g2lh5nqse02ee737cf.apps.googleusercontent.com","project_id":"decisive-octane-187810","auth_uri":"https://accounts.google.com/o/oauth2/auth","token_uri":"https://accounts.google.com/o/oauth2/token","auth_provider_x509_cert_url":"https://www.googleapis.com/oauth2/v1/certs","client_secret":"2MnN1DfenoCGWMay3v8Bf7eI","redirect_uris":["urn:ietf:wg:oauth:2.0:oob","http://localhost"]}}

libraries/src/test/java/com/baeldung/google/sheets/GoogleSheetsIntegrationTest.java

@@ -0,0 +1,140 @@
+package com.baeldung.google.sheets;
+
+import java.io.IOException;
+import java.security.GeneralSecurityException;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+import com.google.api.services.sheets.v4.Sheets;
+import com.google.api.services.sheets.v4.model.AppendValuesResponse;
+import com.google.api.services.sheets.v4.model.BatchGetValuesResponse;
+import com.google.api.services.sheets.v4.model.BatchUpdateSpreadsheetRequest;
+import com.google.api.services.sheets.v4.model.BatchUpdateValuesRequest;
+import com.google.api.services.sheets.v4.model.BatchUpdateValuesResponse;
+import com.google.api.services.sheets.v4.model.CopyPasteRequest;
+import com.google.api.services.sheets.v4.model.GridRange;
+import com.google.api.services.sheets.v4.model.Request;
+import com.google.api.services.sheets.v4.model.Spreadsheet;
+import com.google.api.services.sheets.v4.model.SpreadsheetProperties;
+import com.google.api.services.sheets.v4.model.UpdateSpreadsheetPropertiesRequest;
+import com.google.api.services.sheets.v4.model.UpdateValuesResponse;
+import com.google.api.services.sheets.v4.model.ValueRange;
+
+import static org.assertj.core.api.Assertions.*;
+
+public class GoogleSheetsIntegrationTest {
+
+    private static Sheets sheetsService;
+
+    // this id can be replaced with your spreadsheet id 
+    // otherwise be advised that multiple people may run this test and update the public spreadsheet
+    private static final String SPREADSHEET_ID = "1sILuxZUnyl_7-MlNThjt765oWshN3Xs-PPLfqYe4DhI";
+
+    @BeforeClass
+    public static void setup() throws GeneralSecurityException, IOException {
+        sheetsService = SheetsServiceUtil.getSheetsService();
+    }
+
+    @Test
+    public void whenWriteSheet_thenReadSheetOk() throws IOException {
+        ValueRange body = new ValueRange()
+          .setValues(Arrays.asList(
+                       Arrays.asList("Expenses January"), 
+                       Arrays.asList("books", "30"), 
+                       Arrays.asList("pens", "10"),
+                       Arrays.asList("Expenses February"), 
+                       Arrays.asList("clothes", "20"),
+                       Arrays.asList("shoes", "5")));
+        UpdateValuesResponse result = sheetsService.spreadsheets().values()
+          .update(SPREADSHEET_ID, "A1", body)
+          .setValueInputOption("RAW")
+          .execute();
+        
+        List<ValueRange> data = new ArrayList<>();
+        data.add(new ValueRange()
+          .setRange("D1")
+          .setValues(Arrays.asList(
+                       Arrays.asList("January Total", "=B2+B3"))));
+        data.add(new ValueRange()
+          .setRange("D4")
+          .setValues(Arrays.asList(
+                       Arrays.asList("February Total", "=B5+B6"))));
+
+        BatchUpdateValuesRequest batchBody = new BatchUpdateValuesRequest()
+          .setValueInputOption("USER_ENTERED")
+          .setData(data);
+        BatchUpdateValuesResponse batchResult =
+          sheetsService.spreadsheets().values()
+            .batchUpdate(SPREADSHEET_ID, batchBody)
+            .execute();
+        
+        List<String> ranges = Arrays.asList("E1","E4");
+        BatchGetValuesResponse readResult = 
+          sheetsService.spreadsheets().values()
+            .batchGet(SPREADSHEET_ID)
+            .setRanges(ranges)
+            .execute();
+      
+        ValueRange januaryTotal = readResult.getValueRanges().get(0);
+        assertThat(januaryTotal.getValues().get(0).get(0)).isEqualTo("40");
+
+        ValueRange febTotal = readResult.getValueRanges().get(1);
+        assertThat(febTotal.getValues().get(0).get(0)).isEqualTo("25");
+
+        ValueRange appendBody = new ValueRange()
+          .setValues(Arrays.asList(
+            Arrays.asList("Total", "=E1+E4")));
+        AppendValuesResponse appendResult =
+          sheetsService.spreadsheets().values()
+            .append(SPREADSHEET_ID, "A1", appendBody)
+            .setValueInputOption("USER_ENTERED")
+            .setInsertDataOption("INSERT_ROWS")
+            .setIncludeValuesInResponse(true)
+            .execute();
+
+        ValueRange total = appendResult.getUpdates().getUpdatedData();
+        assertThat(total.getValues().get(0).get(1)).isEqualTo("65");
+    }
+    
+
+    @Test
+    public void whenUpdateSpreadSheetTitle_thenOk() throws IOException {
+        
+        UpdateSpreadsheetPropertiesRequest updateRequest = new UpdateSpreadsheetPropertiesRequest()
+          .setFields("*")
+          .setProperties(new SpreadsheetProperties().setTitle("Expenses"));
+                
+        CopyPasteRequest copyRequest = new CopyPasteRequest()
+          .setSource(new GridRange().setSheetId(0)
+            .setStartColumnIndex(0).setEndColumnIndex(2)
+            .setStartRowIndex(0).setEndRowIndex(1))
+          .setDestination(new GridRange().setSheetId(1)
+            .setStartColumnIndex(0).setEndColumnIndex(2)
+            .setStartRowIndex(0).setEndRowIndex(1))
+          .setPasteType("PASTE_VALUES");
+        
+        List<Request> requests = new ArrayList<>();
+     
+        requests.add(new Request().setCopyPaste(copyRequest));
+        requests.add(new Request().setUpdateSpreadsheetProperties(updateRequest));
+
+        BatchUpdateSpreadsheetRequest body =
+                new BatchUpdateSpreadsheetRequest().setRequests(requests);
+
+        sheetsService.spreadsheets().batchUpdate(SPREADSHEET_ID, body).execute();
+    }
+    
+    @Test
+    public void whenCreateSpreadSheet_thenIdOk() throws IOException {
+        Spreadsheet spreadSheet = new Spreadsheet()
+          .setProperties(new SpreadsheetProperties().setTitle("My Spreadsheet"));
+        Spreadsheet result = sheetsService.spreadsheets().create(spreadSheet).execute();
+
+        assertThat(result.getSpreadsheetId()).isNotNull();   
+    }
+
+}

spring-5-reactive-client/.gitignore

@@ -0,0 +1,12 @@
+#folders#
+.idea
+/target
+/neoDb*
+/data
+/src/main/webapp/WEB-INF/classes
+*/META-INF/*
+
+# Packaged files #
+*.jar
+*.war
+*.ear

spring-5-reactive-client/README.md

@@ -0,0 +1,15 @@
+## Spring REST Example Project
+
+### The Course
+The "REST With Spring" Classes: http://bit.ly/restwithspring
+
+### Relevant Articles
+
+- [Concurrent Test Execution in Spring 5](http://www.baeldung.com/spring-5-concurrent-tests)
+- [Introduction to the Functional Web Framework in Spring 5](http://www.baeldung.com/spring-5-functional-web)
+- [Exploring the Spring 5 MVC URL Matching Improvements](http://www.baeldung.com/spring-5-mvc-url-matching)
+- [Spring 5 WebClient](http://www.baeldung.com/spring-5-webclient)
+- [Spring 5 Functional Bean Registration](http://www.baeldung.com/spring-5-functional-beans)
+- [The SpringJUnitConfig and SpringJUnitWebConfig Annotations in Spring 5](http://www.baeldung.com/spring-5-junit-config)
+- [Spring Security 5 for Reactive Applications](http://www.baeldung.com/spring-security-5-reactive)
+- [Spring 5 Testing with @EnabledIf Annotation](https://github.com/eugenp/tutorials/tree/master/spring-5)

spring-5-reactive-client/pom.xml

@@ -0,0 +1,201 @@
+<?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>
+
+    <groupId>com.baeldung</groupId>
+    <artifactId>spring-5-reactive-client</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <packaging>jar</packaging>
+
+    <name>spring-5</name>
+    <description>spring 5 sample project about new features</description>
+
+    <parent>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-starter-parent</artifactId>
+        <version>2.0.0.M7</version>
+        <relativePath /> <!-- lookup parent from repository -->
+    </parent>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-data-jpa</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-validation</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-webflux</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.projectreactor</groupId>
+            <artifactId>reactor-spring</artifactId>
+            <version>${reactor-spring.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>javax.json.bind</groupId>
+            <artifactId>javax.json.bind-api</artifactId>
+        </dependency>
+        
+        <!-- Dependencies for Yasson -->
+        <!-- <dependency> -->
+        <!-- <groupId>org.eclipse</groupId> -->
+        <!-- <artifactId>yasson</artifactId> -->
+        <!-- <version>1.0</version> -->
+        <!-- </dependency> -->
+        <!-- <dependency> -->
+        <!-- <groupId>org.glassfish</groupId> -->
+        <!-- <artifactId>javax.json</artifactId> -->
+        <!-- <version>1.1.2</version> -->
+        <!-- </dependency> -->
+        <!-- Dependencies for Johnzon -->
+        
+        <dependency>
+            <groupId>org.apache.geronimo.specs</groupId>
+            <artifactId>geronimo-json_1.1_spec</artifactId>
+            <version>${geronimo-json_1.1_spec.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.johnzon</groupId>
+            <artifactId>johnzon-jsonb</artifactId>
+        </dependency>
+        <!-- utils -->
+        <dependency>
+            <groupId>org.apache.commons</groupId>
+            <artifactId>commons-lang3</artifactId>
+        </dependency>
+
+        <!-- runtime and test scoped -->
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-devtools</artifactId>
+            <scope>runtime</scope>
+        </dependency>
+        <dependency>
+            <groupId>com.h2database</groupId>
+            <artifactId>h2</artifactId>
+            <scope>runtime</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework</groupId>
+            <artifactId>spring-test</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.apache.commons</groupId>
+            <artifactId>commons-collections4</artifactId>
+            <version>4.1</version>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-api</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-engine</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.junit.platform</groupId>
+            <artifactId>junit-platform-surefire-provider</artifactId>
+            <version>${junit.platform.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.junit.platform</groupId>
+            <artifactId>junit-platform-runner</artifactId>
+            <version>${junit.platform.version}</version>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.commons</groupId>
+            <artifactId>commons-lang3</artifactId>
+        </dependency>
+
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+                <configuration>
+                    <mainClass>com.baeldung.Spring5Application</mainClass>
+                    <layout>JAR</layout>
+                </configuration>
+            </plugin>
+
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-surefire-plugin</artifactId>
+                <configuration>
+                    <forkCount>3</forkCount>
+                    <reuseForks>true</reuseForks>
+                    <parallel>methods</parallel>
+                    <useUnlimitedThreads>true</useUnlimitedThreads>
+                    <excludes>
+                        <exclude>**/*IntegrationTest.java</exclude>
+                        <exclude>**/*LiveTest.java</exclude>
+                    </excludes>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
+    <repositories>
+        <repository>
+            <id>spring-milestones</id>
+            <name>Spring Milestones</name>
+            <url>https://repo.spring.io/milestone</url>
+            <snapshots>
+                <enabled>false</enabled>
+            </snapshots>
+        </repository>
+    </repositories>
+    <pluginRepositories>
+        <pluginRepository>
+            <id>spring-milestones</id>
+            <name>Spring Milestones</name>
+            <url>https://repo.spring.io/milestone</url>
+            <snapshots>
+                <enabled>false</enabled>
+            </snapshots>
+        </pluginRepository>
+    </pluginRepositories>
+
+    <properties>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
+        <java.version>1.8</java.version>
+        <junit.platform.version>1.0.0</junit.platform.version>
+        <junit.jupiter.version>5.0.0</junit.jupiter.version>
+        <maven-surefire-plugin.version>2.20</maven-surefire-plugin.version>
+        <spring.version>5.0.1.RELEASE</spring.version>
+        <reactor-spring.version>1.0.1.RELEASE</reactor-spring.version>
+        <johnzon.version>1.1.3</johnzon.version>
+        <jsonb-api.version>1.0</jsonb-api.version>
+        <geronimo-json_1.1_spec.version>1.0</geronimo-json_1.1_spec.version>
+    </properties>
+
+</project>

spring-5-reactive-client/src/main/java/com/baeldung/reactive/model/Foo.java

@@ -1,4 +1,4 @@
-package com.baeldung.reactive.controller;
+package com.baeldung.reactive.model;
 
 import lombok.AllArgsConstructor;
 import lombok.Data;

spring-5-reactive-client/src/main/resources/application.properties

@@ -0,0 +1,3 @@
+logging.level.root=INFO
+
+server.port=8081

spring-5-reactive-client/src/main/resources/logback.xml

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<configuration>
+    <appender name="stdout" class="ch.qos.logback.core.ConsoleAppender">
+        <layout class="ch.qos.logback.classic.PatternLayout">
+            # Pattern of log message for console appender
+            <Pattern>%d{yyyy-MM-dd HH:mm:ss} %-5p %m%n</Pattern>
+        </layout>
+    </appender>
+    
+    <logger name="org.springframework" level="INFO" />
+
+    <root level="INFO">
+        <appender-ref ref="stdout" />
+    </root>
+    
+</configuration>

spring-5-reactive-client/src/main/webapp/WEB-INF/web.xml

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
+         version="3.1">
+
+    <display-name>Spring Functional Application</display-name>
+
+    <servlet>
+        <servlet-name>functional</servlet-name>
+        <servlet-class>com.baeldung.functional.RootServlet</servlet-class>
+        <load-on-startup>1</load-on-startup>
+        <async-supported>true</async-supported>
+    </servlet>
+    <servlet-mapping>
+        <servlet-name>functional</servlet-name>
+        <url-pattern>/</url-pattern>
+    </servlet-mapping>
+
+
+</web-app>

spring-5-reactive-client/src/test/java/com/baeldung/reactive/ReactiveIntegrationTest.java

@@ -0,0 +1,42 @@
+package com.baeldung.reactive;
+
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.web.reactive.function.client.ClientResponse;
+import org.springframework.web.reactive.function.client.WebClient;
+
+import com.baeldung.reactive.model.Foo;
+
+import reactor.core.publisher.Mono;
+
+@SpringBootTest
+public class ReactiveIntegrationTest {
+
+    private WebClient client;
+
+    @BeforeEach
+    public void before() {
+        client = WebClient.create("http://localhost:8080");
+    }
+
+    //
+
+    @Test
+    public void whenMonoReactiveEndpointIsConsumed_thenCorrectOutput() {
+        final Mono<ClientResponse> fooMono = client.get().uri("/foos/123").exchange().log();
+
+        System.out.println(fooMono.subscribe());
+    }
+
+    @Test
+    public void whenFluxReactiveEndpointIsConsumed_thenCorrectOutput() throws InterruptedException {
+        client.get().uri("/foos")
+            .retrieve()
+            .bodyToFlux(Foo.class).log()
+            .subscribe(System.out::println);
+
+        System.out.println();
+    }
+
+}

spring-5-reactive-client/src/test/java/com/baeldung/reactive/Spring5ReactiveTestApplication.java

@@ -0,0 +1,35 @@
+package com.baeldung.reactive;
+
+import org.springframework.boot.CommandLineRunner;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.annotation.Bean;
+import org.springframework.web.reactive.function.client.WebClient;
+
+import com.baeldung.reactive.model.Foo;
+
+@SpringBootApplication
+public class Spring5ReactiveTestApplication {
+
+    @Bean
+    public WebClient client() {
+        return WebClient.create("http://localhost:8080");
+    }
+
+    @Bean
+    CommandLineRunner cmd(WebClient client) {
+        return args -> {
+            client.get().uri("/foos2")
+                .retrieve()
+                .bodyToFlux(Foo.class).log()
+                .subscribe(System.out::println);
+        };
+    }
+    
+    // 
+    
+    public static void main(String[] args) {
+        SpringApplication.run(Spring5ReactiveTestApplication.class, args);
+    }
+    
+}

spring-5-reactive-client/src/test/resources/logback-test.xml

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<configuration>
+    <appender name="stdout" class="ch.qos.logback.core.ConsoleAppender">
+        <layout class="ch.qos.logback.classic.PatternLayout">
+            # Pattern of log message for console appender
+            <Pattern>%d{yyyy-MM-dd HH:mm:ss} %-5p %m%n</Pattern>
+        </layout>
+    </appender>
+    
+    <logger name="org.springframework" level="INFO" />
+
+    <root level="INFO">
+        <appender-ref ref="stdout" />
+    </root>
+    
+</configuration>

spring-5-reactive/src/main/java/com/baeldung/reactive/controller/FooReactiveController.java

@@ -3,13 +3,19 @@ package com.baeldung.reactive.controller;
 import static org.apache.commons.lang3.RandomStringUtils.randomAlphabetic;
 
 import java.time.Duration;
+import java.util.Random;
+import java.util.stream.Stream;
 
+import org.springframework.http.MediaType;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.RestController;
 
+import com.baeldung.reactive.model.Foo;
+
 import reactor.core.publisher.Flux;
 import reactor.core.publisher.Mono;
+import reactor.util.function.Tuple2;
 
 @RestController
 public class FooReactiveController {
@@ -19,11 +25,18 @@ public class FooReactiveController {
         return Mono.just(new Foo(id, randomAlphabetic(6)));
     }
 
-    @GetMapping("/foos")
+    @GetMapping(produces = MediaType.TEXT_EVENT_STREAM_VALUE, value = "/foos")
+    public Flux<Foo> getAllFoos2() {
+        final Flux<Foo> foosFlux = Flux.fromStream(Stream.generate(() -> new Foo(new Random().nextLong(), randomAlphabetic(6))));
+        final Flux<Long> emmitFlux = Flux.interval(Duration.ofSeconds(1));
+        return Flux.zip(foosFlux, emmitFlux).map(Tuple2::getT1);
+    }
+
+    @GetMapping(produces = MediaType.TEXT_EVENT_STREAM_VALUE, value = "/foos2")
     public Flux<Foo> getAllFoos() {
         final Flux<Foo> flux = Flux.<Foo> create(fluxSink -> {
             while (true) {
-                fluxSink.next(new Foo(System.currentTimeMillis(), randomAlphabetic(6)));
+                fluxSink.next(new Foo(new Random().nextLong(), randomAlphabetic(6)));
             }
         }).sample(Duration.ofSeconds(1)).log();
 

spring-5-reactive/src/main/java/com/baeldung/reactive/model/Foo.java

@@ -0,0 +1,13 @@
+package com.baeldung.reactive.model;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+
+@AllArgsConstructor
+@Data
+public class Foo {
+
+    private long id;
+    private String name;
+
+}

spring-5-reactive/src/main/resources/files/hello.txt

@@ -1 +0,0 @@
-hello

spring-5-reactive/src/main/resources/files/test/test.txt

@@ -1 +0,0 @@
-test

spring-5-reactive/src/test/java/com/baeldung/reactive/FluxUnitTest.java

@@ -4,10 +4,11 @@ import static org.apache.commons.lang3.RandomStringUtils.randomAlphabetic;
 import static org.junit.Assert.assertNotNull;
 
 import java.time.Duration;
+import java.util.Random;
 
 import org.junit.jupiter.api.Test;
 
-import com.baeldung.reactive.controller.Foo;
+import com.baeldung.reactive.model.Foo;
 
 import reactor.core.publisher.Flux;
 
@@ -17,7 +18,7 @@ public class FluxUnitTest {
     public void whenFluxIsConstructed_thenCorrect() {
         final Flux<Foo> flux = Flux.<Foo> create(fluxSink -> {
             while (true) {
-                fluxSink.next(new Foo(System.currentTimeMillis(), randomAlphabetic(6)));
+                fluxSink.next(new Foo(new Random().nextLong(), randomAlphabetic(6)));
             }
         }).sample(Duration.ofSeconds(1)).log();