BAEL-1176 Spring Cloud Connector Heroku (#2911)

* BAEL-1176 setting up base application with in memory database

* BAEL-1176 adding postgres stuff

spring-cloud/pom.xml

@@ -16,6 +16,7 @@
         <module>spring-cloud-rest</module>
         <module>spring-cloud-zookeeper</module>
 		<module>spring-cloud-gateway</module>
+		<module>spring-cloud-connectors-heroku</module>
     </modules>
     <packaging>pom</packaging>
 

spring-cloud/spring-cloud-connectors-heroku/pom.xml

@@ -0,0 +1,100 @@
+<?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>
+
+    <parent>
+        <artifactId>spring-boot-starter-parent</artifactId>
+        <groupId>org.springframework.boot</groupId>
+        <version>1.4.4.RELEASE</version>
+        <relativePath />
+    </parent>
+
+    <groupId>com.baeldung.spring.cloud</groupId>
+    <artifactId>spring-cloud-connectors-heroku</artifactId>
+    <version>1.0.0-SNAPSHOT</version>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-cloud-connectors</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-web</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-actuator</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>org.postgresql</groupId>
+            <artifactId>postgresql</artifactId>
+            <version>9.4-1201-jdbc4</version>
+        </dependency>
+
+        <dependency>
+            <groupId>com.h2database</groupId>
+            <artifactId>h2</artifactId>
+            <scope>runtime</scope>
+        </dependency>
+    </dependencies>
+
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.springframework.cloud</groupId>
+                <artifactId>spring-cloud-dependencies</artifactId>
+                <version>${spring-cloud-dependencies.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
+    <properties>
+        <spring-cloud-dependencies.version>Brixton.SR7</spring-cloud-dependencies.version>
+    </properties>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-surefire-plugin</artifactId>
+                <version>2.19.1</version>
+                <configuration>
+                    <forkCount>3</forkCount>
+                    <reuseForks>true</reuseForks>
+                    <excludes>
+                        <exclude>**/*IntegrationTest.java</exclude>
+                        <exclude>**/*LongRunningUnitTest.java</exclude>
+                        <exclude>**/*ManualTest.java</exclude>
+                        <exclude>**/JdbcTest.java</exclude>
+                        <exclude>**/*LiveTest.java</exclude>
+                    </excludes>
+                    <testFailureIgnore>true</testFailureIgnore>
+                </configuration>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.6.0</version>
+                <configuration>
+                    <source>1.8</source>
+                    <target>1.8</target>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+    
+</project>

spring-cloud/spring-cloud-connectors-heroku/src/main/java/com/baeldung/spring/cloud/connectors/heroku/ConnectorsHerokuApplication.java

@@ -0,0 +1,12 @@
+package com.baeldung.spring.cloud.connectors.heroku;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class ConnectorsHerokuApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(ConnectorsHerokuApplication.class, args);
+    }
+}

spring-cloud/spring-cloud-connectors-heroku/src/main/java/com/baeldung/spring/cloud/connectors/heroku/product/Product.java

@@ -0,0 +1,30 @@
+package com.baeldung.spring.cloud.connectors.heroku.product;
+
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+
+@Entity
+public class Product {
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long productId;
+    private String sku;
+
+    public Long getProductId() {
+        return productId;
+    }
+
+    public void setProductId(Long productId) {
+        this.productId = productId;
+    }
+
+    public String getSku() {
+        return sku;
+    }
+
+    public void setSku(String sku) {
+        this.sku = sku;
+    }
+}

spring-cloud/spring-cloud-connectors-heroku/src/main/java/com/baeldung/spring/cloud/connectors/heroku/product/ProductController.java

@@ -0,0 +1,26 @@
+package com.baeldung.spring.cloud.connectors.heroku.product;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.*;
+
+@RestController
+@RequestMapping("/products")
+public class ProductController {
+
+    private final ProductService productService;
+
+    @Autowired
+    public ProductController(ProductService productService) {
+        this.productService = productService;
+    }
+
+    @GetMapping("/{productId}")
+    public Product findProduct(@PathVariable Long productId) {
+        return productService.findProductById(productId);
+    }
+
+    @PostMapping
+    public Product createProduct(@RequestBody Product product) {
+        return productService.createProduct(product);
+    }
+}

spring-cloud/spring-cloud-connectors-heroku/src/main/java/com/baeldung/spring/cloud/connectors/heroku/product/ProductRepository.java

@@ -0,0 +1,6 @@
+package com.baeldung.spring.cloud.connectors.heroku.product;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface ProductRepository extends JpaRepository<Product, Long>{
+}

spring-cloud/spring-cloud-connectors-heroku/src/main/java/com/baeldung/spring/cloud/connectors/heroku/product/ProductService.java

@@ -0,0 +1,28 @@
+package com.baeldung.spring.cloud.connectors.heroku.product;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Propagation;
+import org.springframework.transaction.annotation.Transactional;
+
+@Service
+@Transactional(readOnly = true)
+public class ProductService {
+    private final ProductRepository productRepository;
+
+    @Autowired
+    public ProductService(ProductRepository productRepository) {
+        this.productRepository = productRepository;
+    }
+
+    public Product findProductById(Long productId) {
+        return productRepository.findOne(productId);
+    }
+
+    @Transactional(propagation = Propagation.REQUIRED)
+    public Product createProduct(Product product) {
+        Product newProduct = new Product();
+        newProduct.setSku(product.getSku());
+        return productRepository.save(newProduct);
+    }
+}

spring-cloud/spring-cloud-connectors-heroku/src/main/resources/application.properties

@@ -0,0 +1,8 @@
+spring.datasource.driverClassName=org.postgresql.Driver
+spring.datasource.maxActive=10
+spring.datasource.maxIdle=5
+spring.datasource.minIdle=2
+spring.datasource.initialSize=5
+spring.datasource.removeAbandoned=true
+
+spring.jpa.hibernate.ddl-auto=update