Bael-624 - Code Review fixes

spring-protobuf/src/main/java/com/baeldung/protobuf/Application.java

@@ -0,0 +1,72 @@
+package com.baeldung.protobuf;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.annotation.Bean;
+import org.springframework.http.converter.protobuf.ProtobufHttpMessageConverter;
+import org.springframework.web.client.RestTemplate;
+
+import com.baeldung.protobuf.BaeldungTraining.Course;
+import com.baeldung.protobuf.BaeldungTraining.Student;
+import com.baeldung.protobuf.BaeldungTraining.Student.PhoneNumber;
+import com.baeldung.protobuf.BaeldungTraining.Student.PhoneType;
+
+@SpringBootApplication
+public class Application {
+    
+    public static void main(String[] args) {
+        SpringApplication.run(Application.class, args);
+    }
+
+    @Bean
+    RestTemplate restTemplate(ProtobufHttpMessageConverter hmc) {
+        return new RestTemplate(Arrays.asList(hmc));
+    }
+
+    @Bean
+    ProtobufHttpMessageConverter protobufHttpMessageConverter() {
+        return new ProtobufHttpMessageConverter();
+    }
+
+    @Bean
+    public CourseRepository createTestCourses() {
+        Map<Integer, Course> courses = new HashMap<>();
+
+        Course course1 = Course.newBuilder().setId(1).setCourseName("REST with Spring").addAllStudent(createTestStudents()).build();
+
+        Course course2 = Course.newBuilder().setId(2).setCourseName("Learn Spring Security").addAllStudent(new ArrayList<>()).build();
+
+        courses.put(course1.getId(), course1);
+        courses.put(course2.getId(), course2);
+
+        return new CourseRepository(courses);
+    }
+
+    private List<Student> createTestStudents() {
+        PhoneNumber phone1 = createPhone("123456", PhoneType.MOBILE);
+        Student student1 = createStudent(1, "John", "Doe", "john.doe@baeldung.com", Arrays.asList(phone1));
+
+        PhoneNumber phone2 = createPhone("234567", PhoneType.LANDLINE);
+        Student student2 = createStudent(2, "Richard", "Roe", "richard.roe@baeldung.com", Arrays.asList(phone2));
+
+        PhoneNumber phone3_1 = createPhone("345678", PhoneType.MOBILE);
+        PhoneNumber phone3_2 = createPhone("456789", PhoneType.LANDLINE);
+        Student student3 = createStudent(3, "Jane", "Doe", "jane.doe@baeldung.com", Arrays.asList(phone3_1, phone3_2));
+
+        return Arrays.asList(student1, student2, student3);
+    }
+
+    private Student createStudent(int id, String firstName, String lastName, String email, List<PhoneNumber> phones) {
+        return Student.newBuilder().setId(id).setFirstName(firstName).setLastName(lastName).setEmail(email).addAllPhone(phones).build();
+    }
+
+    private PhoneNumber createPhone(String number, PhoneType type) {
+        return PhoneNumber.newBuilder().setNumber(number).setType(type).build();
+    }
+}

spring-protobuf/src/main/java/com/baeldung/protobuf/CourseController.java

@@ -0,0 +1,20 @@
+package com.baeldung.protobuf;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import com.baeldung.protobuf.BaeldungTraining.Course;
+
+@RestController
+public class CourseController {
+
+    @Autowired
+    CourseRepository courseRepo;
+
+    @RequestMapping("/courses/{id}")
+    Course customer(@PathVariable Integer id) {
+        return courseRepo.getCourse(id);
+    }
+}

spring-protobuf/src/main/java/com/baeldung/protobuf/CourseRepository.java

@@ -0,0 +1,18 @@
+package com.baeldung.protobuf;
+
+import com.baeldung.protobuf.BaeldungTraining.Course;
+
+import java.util.Map;
+
+public class CourseRepository {
+
+    private final Map<Integer, Course> courses;
+
+    public CourseRepository(Map<Integer, Course> courses) {
+        this.courses = courses;
+    }
+
+    public Course getCourse(int id) {
+        return courses.get(id);
+    }
+}

spring-protobuf/src/main/resources/baeldung.proto

@@ -0,0 +1,30 @@
+syntax = "proto3";
+
+package baeldung;
+
+option java_package = "com.baeldung.protobuf";
+option java_outer_classname = "BaeldungTraining";
+
+message Course {
+	int32 id = 1;
+	string course_name = 2;
+	repeated Student student = 3;
+}
+
+message Student {
+	int32 id = 1;
+	string first_name = 2;
+	string last_name = 3;
+	string email = 4;
+	repeated PhoneNumber phone = 5;
+
+	message PhoneNumber {
+		string number = 1;
+		PhoneType type = 2;
+	}
+
+	enum PhoneType {
+		MOBILE = 0;
+		LANDLINE = 1;
+	}
+}

spring-protobuf/src/main/resources/logback.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<configuration>
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n
+            </pattern>
+        </encoder>
+    </appender>
+
+    <root level="INFO">
+        <appender-ref ref="STDOUT" />
+    </root>
+</configuration>