Implement domain services

Implement core business logic for working with Student, Test, and TestResult.

1 files changed, 28 insertions, 0 deletions

diff --git a/src/main/java/com/stileeducation/markr/service/StudentService.java b/src/main/java/com/stileeducation/markr/service/StudentService.java
new file mode 100644
index 0000000..4af4d63
--- /dev/null
+++ b/src/main/java/com/stileeducation/markr/service/StudentService.java
@@ -0,0 +1,28 @@
+package com.stileeducation.markr.service;
+
+import com.stileeducation.markr.entity.Student;
+import com.stileeducation.markr.repository.StudentRepository;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.util.Optional;
+
+@Service
+public class StudentService {
+
+  @Autowired
+  private StudentRepository studentRepository;
+
+  public Student findOrCreateStudent(String firstName, String lastName, String studentNumber) {
+    Optional<Student> optionalStudent = studentRepository.findByStudentNumber(studentNumber);
+    if (optionalStudent.isPresent()) {
+      return optionalStudent.get();
+    } else {
+      Student student = new Student();
+      student.setFirstName(firstName);
+      student.setLastName(lastName);
+      student.setStudentNumber(studentNumber);
+      return studentRepository.save(student);
+    }
+  }
+}