Use RegisterStudentRequest in application service

Author: OctaviPascual

apps/main/tv/codely/apps/mooc/backend/controller/students/StudentsPutController.java

@@ -6,6 +6,7 @@
 import org.springframework.web.bind.annotation.PutMapping;
 import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RestController;
+import tv.codely.mooc.students.application.register.RegisterStudentRequest;
 import tv.codely.mooc.students.application.register.StudentRegistrar;
 
 @RestController
@@ -19,7 +20,7 @@ public StudentsPutController(StudentRegistrar registrar) {
 
     @PutMapping(value = "/students/{id}")
     public ResponseEntity<String> index(@PathVariable String id, @RequestBody Request request) {
-        registrar.register(id, request.name(), request.surname(), request.email());
+        registrar.register(new RegisterStudentRequest(id, request.name(), request.surname(), request.email()));
         return new ResponseEntity<>(HttpStatus.CREATED);
     }
 }

src/mooc/main/tv/codely/mooc/students/application/register/RegisterStudentRequest.java

@@ -0,0 +1,31 @@
+package tv.codely.mooc.students.application.register;
+
+public final class RegisterStudentRequest {
+    private final String id;
+    private final String name;
+    private final String surname;
+    private final String email;
+
+    public RegisterStudentRequest(String id, String name, String surname, String email) {
+        this.id      = id;
+        this.name    = name;
+        this.surname = surname;
+        this.email   = email;
+    }
+
+    public String id() {
+        return id;
+    }
+
+    public String name() {
+        return name;
+    }
+
+    public String surname() {
+        return surname;
+    }
+
+    public String email() {
+        return email;
+    }
+}

src/mooc/main/tv/codely/mooc/students/application/register/StudentRegistrar.java

@@ -1,6 +1,8 @@
 package tv.codely.mooc.students.application.register;
 
-import tv.codely.mooc.students.domain.*;
+import tv.codely.mooc.students.domain.Student;
+import tv.codely.mooc.students.domain.StudentId;
+import tv.codely.mooc.students.domain.StudentRepository;
 import tv.codely.shared.domain.Service;
 
 @Service
@@ -11,8 +13,8 @@ public StudentRegistrar(StudentRepository repository) {
         this.repository = repository;
     }
 
-    public void register(String id, String name, String surname, String email) {
-        Student student = Student.create(new StudentId(id), name, surname, email);
+    public void register(RegisterStudentRequest request) {
+        Student student = Student.create(new StudentId(request.id()), request.name(), request.surname(), request.email());
         repository.register(student);
     }
 }

src/mooc/test/tv/codely/mooc/students/application/register/StudentRegistrarTestShould.java

@@ -14,14 +14,16 @@ void register_a_valid_student() {
         StudentRepository repository = mock(StudentRepository.class);
         StudentRegistrar  registrar  = new StudentRegistrar(repository);
 
-        StudentId id   = new StudentId(UuidMother.random());
-        String name    = "name";
-        String surname = "surname";
-        String email   = "email";
+        StudentId id      = new StudentId(UuidMother.random());
+        String    name    = "name";
+        String    surname = "surname";
+        String    email   = "email";
+
+        RegisterStudentRequest request = new RegisterStudentRequest(id.value(), name, surname, email);
 
         Student student = new Student(id, name, surname, email);
 
-        registrar.register(id.value(), student.name(), student.surname(), student.email());
+        registrar.register(request);
 
         verify(repository, atLeastOnce()).register(student);
     }