initial commit

config-service/src/main/java/com/example/ConfigServiceApplication.java

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+package com.example;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.cloud.config.server.EnableConfigServer;
+
+@SpringBootApplication
+@EnableConfigServer
+public class ConfigServiceApplication {
+
+	public static void main(String[] args) {
+		SpringApplication.run(ConfigServiceApplication.class, args);
+	}
+
+}

config-service/src/main/resources/application.properties

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+server.address=localhost
+server.port=3030
+
+#spring cloud config configuration
+spring.cloud.config.server.git.uri=c:/DEVEL/stage/tmp/config-repo
+spring.cloud.config.server.git.clone-on-start=true
+
+#authentication
+spring.security.user.name=root
+spring.security.user.password=secret

lottery-microservice/pom.xml

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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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<modelVersion>4.0.0</modelVersion>
+	<parent>
+		<groupId>org.springframework.boot</groupId>
+		<artifactId>spring-boot-starter-parent</artifactId>
+		<version>2.3.1.RELEASE</version>
+		<relativePath/> <!-- lookup parent from repository -->
+	</parent>
+	<groupId>com.example</groupId>
+	<artifactId>lottery-microservice</artifactId>
+	<version>0.0.1-SNAPSHOT</version>
+	<name>lottery-microservice</name>
+	<description>Spring Boot Project for Lottery MicroService</description>
+
+	<properties>
+		<java.version>11</java.version>
+	</properties>
+
+	<dependencies>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-web</artifactId>
+		</dependency>
+
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-devtools</artifactId>
+			<scope>runtime</scope>
+			<optional>true</optional>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-test</artifactId>
+			<scope>test</scope>
+			<exclusions>
+				<exclusion>
+					<groupId>org.junit.vintage</groupId>
+					<artifactId>junit-vintage-engine</artifactId>
+				</exclusion>
+			</exclusions>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-actuator</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.cloud</groupId>
+			<artifactId>spring-cloud-starter-config</artifactId>
+		</dependency>
+	</dependencies>
+
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.springframework.boot</groupId>
+				<artifactId>spring-boot-maven-plugin</artifactId>
+			</plugin>
+		</plugins>
+	</build>
+
+	<dependencyManagement>
+		<dependencies>
+			<dependency>
+				<groupId>org.springframework.cloud</groupId>
+				<artifactId>spring-cloud-dependencies</artifactId>
+				<version>Hoxton.SR5</version>
+				<type>pom</type>
+				<scope>import</scope>
+			</dependency>
+		</dependencies>
+	</dependencyManagement>
+</project>

lottery-microservice/src/main/java/com/example/lottery/controller/LotteryRestController.java

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+package com.example.lottery.controller;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.CrossOrigin;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.context.annotation.RequestScope;
+
+import com.example.lottery.dto.LotteryResponse;
+import com.example.lottery.service.LotteryService;
+
+@RestController
+@RequestScope
+@RequestMapping("numbers")
+@CrossOrigin
+public class LotteryRestController {
+    @Autowired
+	private LotteryService lotteryService;
+
+	// GET http://localhost:8001/lottery/api/v1/numbers?column=10
+	@GetMapping(params = {"column"})
+	public LotteryResponse getNumbers(@RequestParam int column){
+		return new LotteryResponse(lotteryService.draw(column));
+	}
+}

lottery-microservice/src/main/java/com/example/lottery/dto/LotteryResponse.java

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+package com.example.lottery.dto;
+
+import java.util.List;
+
+public class LotteryResponse {
+	private List<List<Integer>> numbers;
+
+	public LotteryResponse() {
+	}
+
+	public LotteryResponse(List<List<Integer>> numbers) {
+		this.numbers = numbers;
+	}
+
+	public List<List<Integer>> getNumbers() {
+		return numbers;
+	}
+
+	public void setNumbers(List<List<Integer>> numbers) {
+		this.numbers = numbers;
+	}
+
+	@Override
+	public String toString() {
+		return "LotteryResponse [numbers=" + numbers + "]";
+	}
+
+}

lottery-microservice/src/main/java/com/example/lottery/service/LotteryService.java

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+package com.example.lottery.service;
+
+import java.util.List;
+
+public interface LotteryService {
+
+	List<List<Integer>> draw(int column);
+
+}

lottery-microservice/src/main/java/com/example/lottery/service/business/SimpleLotteryService.java

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+package com.example.lottery.service.business;
+
+import java.util.List;
+import java.util.concurrent.ThreadLocalRandom;
+import java.util.stream.Collectors;
+import java.util.stream.IntStream;
+
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Service;
+
+import com.example.lottery.service.LotteryService;
+
+@Service
+public class SimpleLotteryService implements LotteryService{
+	@Value("${lottery.min}") 
+	private int lotteryMin;
+	@Value("${lottery.max}") 
+	private int lotteryMax;
+	@Value("${lottery.size}") 
+	private int lotterySize;
+
+	public List<Integer> draw() {
+		return ThreadLocalRandom.current().ints(lotteryMin, lotteryMax)
+				                .distinct()
+				                .limit(lotterySize)
+				                .sorted()
+				                .boxed()
+				                .collect(Collectors.toList());
+	}
+
+	@Override
+	public List<List<Integer>> draw(int column) {
+		return IntStream.range(0, column)
+				        .mapToObj(i -> this.draw())
+				        .collect(Collectors.toList());
+	}
+
+}

lottery-microservice/src/main/resources/application.properties

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+#Rest API URL Design
+server.address=localhost
+server.port=8001
+server.servlet.context-path=/lottery
+spring.mvc.servlet.path=/api/v1
+
+spring.application.name=lottery
+spring.profiles.active=development
+
+# actuator
+management.endpoints.web.exposure.include=*

lottery-microservice/src/main/resources/bootstrap.properties

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+# config server
+spring.cloud.config.uri=http://localhost:3030
+spring.cloud.config.username=root
+spring.cloud.config.password=secret