spring-rest-shell (#2928)

* code snippets for the `Java 9 Stream API improvements` article

* code snippets for the `Java 9 Stream API improvements` article [2 attempt]

* removed the first attempt

* the Spring 5 WebClient

* delted stream features test

* HttpMediaTypeNotAcceptableExceptionExampleController [0]

* reactive web client service was removed

* new WebClient

* new WebClient [2]

* spring-rest-shell init

* pom added

* readme added

spring-5/src/main/java/com/baeldung/web/reactive/client/WebClientController.java

@@ -43,7 +43,8 @@ public class WebClientController {
         WebClient.RequestHeadersSpec<?> requestSpec2 = uri2.body(BodyInserters.fromObject("data"));
 
         // inserters
-        BodyInserter<Publisher<String>, ReactiveHttpOutputMessage> inserter1 = BodyInserters.fromPublisher(Subscriber::onComplete, String.class);
+        BodyInserter<Publisher<String>, ReactiveHttpOutputMessage> inserter1 = BodyInserters
+                .fromPublisher(Subscriber::onComplete, String.class);
 
         LinkedMultiValueMap<String, String> map = new LinkedMultiValueMap<>();
         map.add("key1", "value1");

spring-rest-shell/README.md

@@ -0,0 +1,5 @@
+## Spring REST Shell Project
+
+### Relevant Articles
+
+- [Spring REST Shell](http://www.baeldung.com/<ARTICLE_URI>)

spring-rest-shell/pom.xml

@@ -0,0 +1,60 @@
+<?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-rest-shell</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <packaging>jar</packaging>
+
+    <name>spring-rest-shell</name>
+    <description>A simple project to demonstrate Spring REST Shell features.</description>
+
+    <parent>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-starter-parent</artifactId>
+        <version>1.5.8.RELEASE</version>
+        <relativePath/> <!-- lookup parent from repository -->
+    </parent>
+
+    <properties>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
+        <java.version>1.8</java.version>
+    </properties>
+
+    <dependencies>
+        <!-- Spring dependencies -->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-data-jpa</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-data-rest</artifactId>
+        </dependency>
+
+        <!-- H2 dependency -->
+        <dependency>
+            <groupId>com.h2database</groupId>
+            <artifactId>h2</artifactId>
+            <scope>runtime</scope>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
+
+
+</project>

spring-rest-shell/src/main/java/com/baeldung/Application.java

@@ -0,0 +1,13 @@
+package com.baeldung;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class Application {
+
+    public static void main(String[] args) {
+        SpringApplication.run(Application.class, args);
+    }
+
+}

spring-rest-shell/src/main/java/com/baeldung/acticle/Article.java

@@ -0,0 +1,40 @@
+package com.baeldung.acticle;
+
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.Id;
+
+@Entity
+public final class Article {
+
+    @Id
+    @GeneratedValue
+    private Long id;
+    private String title;
+    private String content;
+
+    public Long getId() {
+        return id;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public String getTitle() {
+        return title;
+    }
+
+    public void setTitle(String title) {
+        this.title = title;
+    }
+
+    public String getContent() {
+        return content;
+    }
+
+    public void setContent(String content) {
+        this.content = content;
+    }
+
+}

spring-rest-shell/src/main/java/com/baeldung/acticle/ArticleRepository.java

@@ -0,0 +1,18 @@
+package com.baeldung.acticle;
+
+import org.springframework.data.repository.CrudRepository;
+import org.springframework.data.repository.query.Param;
+import org.springframework.data.rest.core.annotation.RepositoryRestResource;
+
+import java.util.Optional;
+
+@RepositoryRestResource(
+        path = "articles",
+        collectionResourceRel = "articles",
+        itemResourceRel = "article"
+)
+public interface ArticleRepository extends CrudRepository<Article, Long> {
+
+    Optional<Article> findByTitle(@Param("title") String title);
+
+}