Page Comparison

public class EnrollmentService {

    @GetMapping("/v5/studies/{studyId}/enrollments")
    public PagedResourceList<EnrollmentDetail> getEnrollments(...) {
        UserSession session = getAuthenticatedSession(RESEARCHER, ADMIN);

        if (!session.isInRole(ADMIN) && !AuthUtils.canAccessStudy(studyId)) {
          throw new UnauthorizedException();
        }
    }
    
    @GetMapping("/v3/participants/self/enrollments")
    public PagedResourceList<EnrollmentDetail> getSelfEnrollments(...) {
        UserSession session = getAuthenticatedSession();
        // set userId to the caller's user Id
    }

    @PostMapping("/v5/studies/{studyId}/enrollments")
    public Enrollment enroll(...) {
        UserSession session = getAuthenticatedSession(RESEARCHER, ADMIN);

        if (!session.isInRole(ADMIN) && !AuthUtils.canAccessStudy(studyId)) {
          throw new UnauthorizedException();
        }
    }

    @PostMapping("/v3/participants/self/enrollments")
    public Enrollment enrollSelf(...) {
        UserSession session = getAuthenticatedSession();
        // set userId to the caller's user Id
    }

    @PostMapping("/v5/studies/{studyId}/enrollments/{userId}")
    public void updateEnrollment(...) {
        UserSession session = getAuthenticatedSession(RESEARCHER, ADMIN);

        if (!session.isInRole(ADMIN) && !AuthUtils.canAccessStudy(studyId)) {
          throw new UnauthorizedException();
        }
    }
    
    @DeleteMapping("/v5/studies/{studyId}/enrollments/{userId}")
    public Enrollment unenroll(...) {
        UserSession session = getAuthenticatedSession(RESEARCHER, ADMIN);

        if (!session.isInRole(ADMIN) && !AuthUtils.canAccessStudy(studyId)) {
          throw new UnauthorizedException();
        }
    }

    @DeleteMapping("/v3/participants/self/enrollments/{userId}")
    public Enrollment unenrollSelf(...) {
        UserSession session = getAuthenticatedSession();
        // set userId to the caller's user Id
    }
}