Function bodies 261 total

AttendanceService method · java · L25-L29 (5 LOC)

src/main/java/com/yumi/yumiclass/service/AttendanceService.java

    public AttendanceService(AttendanceRepository attendanceRepository,
                             StudentRepository studentRepository) {
        this.attendanceRepository = attendanceRepository;
        this.studentRepository = studentRepository;
    }

getClassAttendance method · java · L35-L37 (3 LOC)

src/main/java/com/yumi/yumiclass/service/AttendanceService.java

    public Map<Student, Attendance> getClassAttendance(Integer grade, Integer classNum, LocalDate date) {
        return getClassAttendance(grade, classNum, null, date);
    }

getClassAttendance method · java · L44-L75 (32 LOC)

src/main/java/com/yumi/yumiclass/service/AttendanceService.java

    public Map<Student, Attendance> getClassAttendance(Integer grade, Integer classNum,
                                                        Long studentId, LocalDate date) {
        List<Student> students;
        // 특정 학생 1명만 조회 (학년/반 필터는 무시하고 해당 학생만)
        if (studentId != null) {
            Student s = studentRepository.findById(studentId).orElse(null);
            students = (s != null) ? List.of(s) : Collections.emptyList();
        } else if (grade != null && classNum != null) {
            students = studentRepository.findByGradeAndClassNumOrderByNumberAsc(grade, classNum);
        } else if (grade != null) {
            students = studentRepository.findByGradeOrderByClassNumAscNumberAsc(grade);
        } else {
            students = studentRepository.findAll(
                org.springframework.data.domain.Sort.by("grade", "classNum", "number"));
        }
        if (students.isEmpty()) {
            return Collections.emptyMap();
        }
        // 2. 해당 날짜 기존 출결 조회

saveBatch method · java · L82-L110 (29 LOC)

src/main/java/com/yumi/yumiclass/service/AttendanceService.java

    public int saveBatch(LocalDate date, Map<Long, AttendanceStatus> studentStatusMap,
                         Map<Long, String> studentMemoMap) {
        int savedCount = 0;
        for (Map.Entry<Long, AttendanceStatus> entry : studentStatusMap.entrySet()) {
            Long studentId = entry.getKey();
            AttendanceStatus status = entry.getValue();
            if (status == null) continue; // 선택 안 한 학생은 스킵

            Student student = studentRepository.findById(studentId).orElse(null);
            if (student == null) continue;

            String memo = studentMemoMap != null ? studentMemoMap.get(studentId) : null;

            // 기존 기록 조회
            Attendance attendance = attendanceRepository
                .findByStudentAndAttendanceDate(student, date)
                .orElseGet(() -> {
                    Attendance a = new Attendance();
                    a.setStudent(student);
                    a.setAttendanceDate(date);
                    return a;

ChatbotService class · java · L22-L279 (258 LOC)

src/main/java/com/yumi/yumiclass/service/ChatbotService.java

public class ChatbotService {

    private final GeminiApiService geminiApiService;
    private final StudentRepository studentRepository;
    private final TeacherRepository teacherRepository;
    private final ScoreRepository scoreRepository;
    private final AttendanceRepository attendanceRepository;
    private final AssignmentRepository assignmentRepository;
    private final PapsRepository papsRepository;
    private final ChatLogRepository chatLogRepository;
    private final StatsService statsService;

    public ChatbotService(GeminiApiService geminiApiService,
                          StudentRepository studentRepository, TeacherRepository teacherRepository,
                          ScoreRepository scoreRepository, AttendanceRepository attendanceRepository,
                          AssignmentRepository assignmentRepository, PapsRepository papsRepository,
                          ChatLogRepository chatLogRepository, StatsService statsService) {
        this.geminiApiServic

ChatbotService method · java · L34-L48 (15 LOC)

src/main/java/com/yumi/yumiclass/service/ChatbotService.java

    public ChatbotService(GeminiApiService geminiApiService,
                          StudentRepository studentRepository, TeacherRepository teacherRepository,
                          ScoreRepository scoreRepository, AttendanceRepository attendanceRepository,
                          AssignmentRepository assignmentRepository, PapsRepository papsRepository,
                          ChatLogRepository chatLogRepository, StatsService statsService) {
        this.geminiApiService = geminiApiService;
        this.studentRepository = studentRepository;
        this.teacherRepository = teacherRepository;
        this.scoreRepository = scoreRepository;
        this.attendanceRepository = attendanceRepository;
        this.assignmentRepository = assignmentRepository;
        this.papsRepository = papsRepository;
        this.chatLogRepository = chatLogRepository;
        this.statsService = statsService;
    }

ask method · java · L55-L90 (36 LOC)

src/main/java/com/yumi/yumiclass/service/ChatbotService.java

    public Long ask(String username, UserRole role, String question, Long sessionId) {
        String prompt;
        Long userId;

        if (role == UserRole.STUDENT) {
            Student student = studentRepository.findByUsername(username)
                .orElseThrow(() -> new IllegalArgumentException("학생 없음"));
            userId = student.getId();
            prompt = buildStudentPrompt(student, question);
        } else {
            Teacher teacher = teacherRepository.findByUsername(username)
                .orElseThrow(() -> new IllegalArgumentException("선생님 없음"));
            userId = teacher.getId();
            prompt = buildTeacherPrompt(question);
        }

        // 세션 ID 결정: 전달받은 값이 없거나 0이면 새로 생성
        if (sessionId == null || sessionId == 0L) {
            sessionId = System.currentTimeMillis();
        }

        // Gemini 호출
        String answer = geminiApiService.ask(prompt);

        // 대화 로그 저장 (세션 ID 포함)
        ChatLog log = new ChatLog();
        log.se

Repobility · open methodology · https://repobility.com/research/

buildStudentPrompt method · java · L95-L157 (63 LOC)

src/main/java/com/yumi/yumiclass/service/ChatbotService.java

    private String buildStudentPrompt(Student student, String question) {
        StringBuilder sb = new StringBuilder();
        sb.append("당신은 Yumi Class 체육수업 AI 도우미입니다. 학생에게 친근하고 격려하는 말투로 답변하세요.\n");
        sb.append("중요: 아래 제공된 데이터에 있는 내용만 답변하고, 다른 학생에 대한 정보는 절대 답하지 마세요.\n");
        // 조회 질문은 반드시 답변하되, 수정 요청만 거부
        sb.append("기본 원칙: 점수/출결/과제/PAPS 등에 대한 '조회/질문'은 아래 데이터를 활용해 정상적으로 답변하세요.\n");
        sb.append("단, 사용자가 '데이터를 바꿔줘/수정해줘/삭제해줘/추가해줘/기록해줘' 같이 DB 변경을 요청할 때만 거부하세요.\n");
        sb.append("거부 시: '죄송합니다. 저는 조회만 가능하며 데이터를 수정할 수 없습니다. 수정은 해당 페이지에서 직접 해주세요.'\n");
        sb.append("파일 생성 요청('엑셀/PDF로 뽑아줘') 시: '파일 다운로드는 해당 페이지의 다운로드 버튼을 이용해주세요.'\n\n");

        sb.append("[학생 본인 정보]\n");
        sb.append("- 학년/반/번호: ").append(student.getGrade()).append("학년 ")
          .append(student.getClassNum()).append("반 ").append(student.getNumber()).append("번\n");
        sb.append("- 이름: ").append(student.getName()).append("\n\n");

        // 점수
        List<Score> scores = scoreRep

buildTeacherPrompt method · java · L162-L220 (59 LOC)

src/main/java/com/yumi/yumiclass/service/ChatbotService.java

    private String buildTeacherPrompt(String question) {
        StringBuilder sb = new StringBuilder();
        sb.append("당신은 Yumi Class 체육수업 AI 도우미입니다. 선생님의 질문에 정확하고 간결하게 답변하세요.\n");
        // 조회 질문은 반드시 답변하되, 수정 요청만 거부
        sb.append("기본 원칙: 학생 점수/출결/과제/PAPS/대회 등에 대한 '조회/분석/통계/질문'은 아래 데이터를 활용해 정상적으로 답변하세요.\n");
        sb.append("단, 사용자가 '데이터를 바꿔줘/수정해줘/삭제해줘/추가해줘/기록해줘/저장해줘' 같이 DB 변경을 요청할 때만 거부하세요.\n");
        sb.append("거부 시: '죄송합니다. 저는 조회만 가능하며 데이터를 수정할 수 없습니다. 수정은 해당 관리 페이지에서 직접 해주세요.'\n");
        sb.append("파일 생성 요청('엑셀/PDF로 뽑아줘/다운로드') 시: '파일 다운로드는 해당 페이지의 엑셀 다운로드 버튼을 이용해주세요.'\n\n");

        sb.append("[전체 통계]\n");
        sb.append("- 등록 학생 수: ").append(statsService.getTotalStudents()).append("명\n");
        sb.append("- 오늘 출결 기록: ").append(statsService.getTodayAttendanceCount()).append("건\n");
        sb.append("- 진행 대회: ").append(statsService.getTotalLeagues()).append("건\n");
        sb.append("- 등록 과제: ").append(statsService.getTotalAssignments()).append("건\n\n");

getSessionMessages method · java · L226-L230 (5 LOC)

src/main/java/com/yumi/yumiclass/service/ChatbotService.java

    public List<ChatLog> getSessionMessages(UserRole role, Long userId, Long sessionId) {
        if (sessionId == null || sessionId == 0L) return Collections.emptyList();
        return chatLogRepository.findByUserTypeAndUserIdAndSessionIdOrderByCreatedAtAsc(
            role, userId, sessionId);
    }

getSessions method · java · L235-L255 (21 LOC)

src/main/java/com/yumi/yumiclass/service/ChatbotService.java

    public List<SessionSummary> getSessions(UserRole role, Long userId) {
        List<Long> sessionIds = chatLogRepository.findDistinctSessionIdsByUser(role, userId);
        List<SessionSummary> result = new ArrayList<>();
        for (Long sid : sessionIds) {
            List<ChatLog> first = chatLogRepository.findFirstInSession(role, userId, sid);
            if (first.isEmpty()) continue;
            ChatLog firstLog = first.get(0);
            SessionSummary s = new SessionSummary();
            s.sessionId = sid;
            // 첫 질문을 제목으로 (30자 이내)
            String title = firstLog.getQuestion();
            if (title != null && title.length() > 30) {
                title = title.substring(0, 30) + "…";
            }
            s.title = title != null ? title : "(제목 없음)";
            s.createdAt = firstLog.getCreatedAt();
            s.messageCount = first.size(); // 사실 이건 첫 메시지 목록 개수가 아니라 전체 첫번째만. 세션 총 개수 따로.
            result.add(s);
        }
        return result;
    }

deleteSession method · java · L261-L263 (3 LOC)

src/main/java/com/yumi/yumiclass/service/ChatbotService.java

    public int deleteSession(UserRole role, Long userId, Long sessionId) {
        return chatLogRepository.deleteSession(role, userId, sessionId);
    }

SessionSummary class · java · L268-L278 (11 LOC)

src/main/java/com/yumi/yumiclass/service/ChatbotService.java

    public static class SessionSummary {
        public Long sessionId;
        public String title;
        public java.time.LocalDateTime createdAt;
        public int messageCount;

        public Long getSessionId() { return sessionId; }
        public String getTitle() { return title; }
        public java.time.LocalDateTime getCreatedAt() { return createdAt; }
        public int getMessageCount() { return messageCount; }
    }

CustomUserDetailsService class · java · L21-L57 (37 LOC)

src/main/java/com/yumi/yumiclass/service/CustomUserDetailsService.java

public class CustomUserDetailsService implements UserDetailsService {

    private final TeacherRepository teacherRepository;
    private final StudentRepository studentRepository;

    public CustomUserDetailsService(TeacherRepository teacherRepository,
                                    StudentRepository studentRepository) {
        this.teacherRepository = teacherRepository;
        this.studentRepository = studentRepository;
    }

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        // 1. 선생님 계정 먼저 조회
        Optional<Teacher> teacher = teacherRepository.findByUsername(username);
        if (teacher.isPresent() && Boolean.TRUE.equals(teacher.get().getEnabled())) {
            return User.builder()
                    .username(teacher.get().getUsername())
                    .password(teacher.get().getPassword())
                    .roles("TEACHER")
                    .build();
        }

        // 2. 학생 계정 조회

CustomUserDetailsService method · java · L26-L30 (5 LOC)

src/main/java/com/yumi/yumiclass/service/CustomUserDetailsService.java

    public CustomUserDetailsService(TeacherRepository teacherRepository,
                                    StudentRepository studentRepository) {
        this.teacherRepository = teacherRepository;
        this.studentRepository = studentRepository;
    }

Citation: Repobility (2026). State of AI-Generated Code. https://repobility.com/research/

loadUserByUsername method · java · L33-L56 (24 LOC)

src/main/java/com/yumi/yumiclass/service/CustomUserDetailsService.java

    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        // 1. 선생님 계정 먼저 조회
        Optional<Teacher> teacher = teacherRepository.findByUsername(username);
        if (teacher.isPresent() && Boolean.TRUE.equals(teacher.get().getEnabled())) {
            return User.builder()
                    .username(teacher.get().getUsername())
                    .password(teacher.get().getPassword())
                    .roles("TEACHER")
                    .build();
        }

        // 2. 학생 계정 조회
        Optional<Student> student = studentRepository.findByUsername(username);
        if (student.isPresent() && Boolean.TRUE.equals(student.get().getEnabled())) {
            return User.builder()
                    .username(student.get().getUsername())
                    .password(student.get().getPassword())
                    .roles("STUDENT")
                    .build();
        }

        // 3. 없으면 실패
        throw new UsernameNotFoundExcepti

ExcelService class · java · L21-L107 (87 LOC)

src/main/java/com/yumi/yumiclass/service/ExcelService.java

public class ExcelService {

    private final StudentRepository studentRepository;
    private final ScoreService scoreService;

    public ExcelService(StudentRepository studentRepository, ScoreService scoreService) {
        this.studentRepository = studentRepository;
        this.scoreService = scoreService;
    }

    /** 특정 반 학생 명단 엑셀 생성 */
    public byte[] generateStudentListExcel(Integer grade, Integer classNum) throws IOException {
        List<Student> students = studentRepository.findByGradeAndClassNumOrderByNumberAsc(grade, classNum);
        try (Workbook workbook = new XSSFWorkbook();
             ByteArrayOutputStream out = new ByteArrayOutputStream()) {
            Sheet sheet = workbook.createSheet(grade + "학년 " + classNum + "반");
            // 헤더
            String[] headers = {"학번", "이름", "학년", "반", "번호", "성별"};
            Row headerRow = sheet.createRow(0);
            CellStyle headerStyle = createHeaderStyle(workbook);
            for (int i = 0; i < headers.le

ExcelService method · java · L26-L29 (4 LOC)

src/main/java/com/yumi/yumiclass/service/ExcelService.java

    public ExcelService(StudentRepository studentRepository, ScoreService scoreService) {
        this.studentRepository = studentRepository;
        this.scoreService = scoreService;
    }

generateStudentListExcel method · java · L32-L61 (30 LOC)

src/main/java/com/yumi/yumiclass/service/ExcelService.java

    public byte[] generateStudentListExcel(Integer grade, Integer classNum) throws IOException {
        List<Student> students = studentRepository.findByGradeAndClassNumOrderByNumberAsc(grade, classNum);
        try (Workbook workbook = new XSSFWorkbook();
             ByteArrayOutputStream out = new ByteArrayOutputStream()) {
            Sheet sheet = workbook.createSheet(grade + "학년 " + classNum + "반");
            // 헤더
            String[] headers = {"학번", "이름", "학년", "반", "번호", "성별"};
            Row headerRow = sheet.createRow(0);
            CellStyle headerStyle = createHeaderStyle(workbook);
            for (int i = 0; i < headers.length; i++) {
                Cell cell = headerRow.createCell(i);
                cell.setCellValue(headers[i]);
                cell.setCellStyle(headerStyle);
            }
            // 데이터
            int rowIdx = 1;
            for (Student s : students) {
                Row row = sheet.createRow(rowIdx++);
                row.createCell(0)

generateScoreExcel method · java · L64-L95 (32 LOC)

src/main/java/com/yumi/yumiclass/service/ExcelService.java

    public byte[] generateScoreExcel(Integer grade, Integer classNum) throws IOException {
        List<Score> scores = scoreService.findByClass(grade, classNum);
        try (Workbook workbook = new XSSFWorkbook();
             ByteArrayOutputStream out = new ByteArrayOutputStream()) {
            Sheet sheet = workbook.createSheet(grade + "학년 " + classNum + "반 점수");
            // 헤더
            String[] headers = {"학번", "이름", "번호", "종목", "연도", "학기", "점수", "등급"};
            Row headerRow = sheet.createRow(0);
            CellStyle headerStyle = createHeaderStyle(workbook);
            for (int i = 0; i < headers.length; i++) {
                Cell cell = headerRow.createCell(i);
                cell.setCellValue(headers[i]);
                cell.setCellStyle(headerStyle);
            }
            // 데이터
            int rowIdx = 1;
            for (Score s : scores) {
                Row row = sheet.createRow(rowIdx++);
                row.createCell(0).setCellValue(s.getStudent().g

createHeaderStyle method · java · L98-L106 (9 LOC)

src/main/java/com/yumi/yumiclass/service/ExcelService.java

    private CellStyle createHeaderStyle(Workbook workbook) {
        CellStyle style = workbook.createCellStyle();
        Font font = workbook.createFont();
        font.setBold(true);
        style.setFont(font);
        style.setFillForegroundColor(IndexedColors.GREY_25_PERCENT.getIndex());
        style.setFillPattern(FillPatternType.SOLID_FOREGROUND);
        return style;
    }

ask function · java · L40-L78 (39 LOC)

src/main/java/com/yumi/yumiclass/service/GeminiApiService.java

    public String ask(String prompt) {
        // API 키 미설정 체크
        if (apiKey == null || apiKey.isBlank() || apiKey.contains("여기에")) {
            return "[Gemini API 키가 설정되지 않았습니다. application-secret.properties에서 gemini.api.key 값을 입력해주세요.]";
        }

        try {
            // 요청 본문: Gemini API 형식에 맞춰 구성
            Map<String, Object> requestBody = Map.of(
                "contents", List.of(Map.of(
                    "parts", List.of(Map.of("text", prompt))
                ))
            );

            HttpHeaders headers = new HttpHeaders();
            headers.setContentType(MediaType.APPLICATION_JSON);
            HttpEntity<Map<String, Object>> request = new HttpEntity<>(requestBody, headers);

            // API 키는 쿼리 파라미터로 전달
            String url = API_URL + "?key=" + apiKey;
            Map<String, Object> response = restTemplate.postForObject(url, request, Map.class);

            // 응답에서 텍스트 추출 (candidates[0].content.parts[0].text)
            if (response != nu

LeagueService class · java · L21-L411 (391 LOC)