| 1 | package edu.ucsb.cs156.happiercows.controllers; | |
| 2 | ||
| 3 | import edu.ucsb.cs156.happiercows.entities.Course; | |
| 4 | import edu.ucsb.cs156.happiercows.entities.Student; | |
| 5 | import edu.ucsb.cs156.happiercows.repositories.CourseRepository; | |
| 6 | import edu.ucsb.cs156.happiercows.repositories.StudentRepository; | |
| 7 | import edu.ucsb.cs156.happiercows.repositories.UserRepository; | |
| 8 | ||
| 9 | import io.swagger.v3.oas.annotations.Operation; | |
| 10 | import io.swagger.v3.oas.annotations.Parameter; | |
| 11 | import io.swagger.v3.oas.annotations.tags.Tag; | |
| 12 | import lombok.extern.slf4j.Slf4j; | |
| 13 | ||
| 14 | import com.fasterxml.jackson.core.JsonProcessingException; | |
| 15 | import com.opencsv.CSVReader; | |
| 16 | import com.opencsv.exceptions.CsvException; | |
| 17 | ||
| 18 | import org.springframework.beans.factory.annotation.Autowired; | |
| 19 | import org.springframework.security.access.prepost.PreAuthorize; | |
| 20 | import org.springframework.web.bind.annotation.GetMapping; | |
| 21 | import org.springframework.web.bind.annotation.PostMapping; | |
| 22 | import org.springframework.web.bind.annotation.RequestMapping; | |
| 23 | import org.springframework.web.bind.annotation.RequestParam; | |
| 24 | import org.springframework.web.bind.annotation.RestController; | |
| 25 | import org.springframework.web.multipart.MultipartFile; | |
| 26 | ||
| 27 | import edu.ucsb.cs156.happiercows.errors.EntityNotFoundException; | |
| 28 | ||
| 29 | import java.io.BufferedInputStream; | |
| 30 | import java.io.BufferedReader; | |
| 31 | import java.io.FileReader; | |
| 32 | import java.io.IOException; | |
| 33 | import java.io.InputStream; | |
| 34 | import java.io.InputStreamReader; | |
| 35 | import java.util.List; | |
| 36 | import java.util.Map; | |
| 37 | import java.util.Optional; | |
| 38 | ||
| 39 | @Tag(name = "Students") | |
| 40 | @RequestMapping("/api/students") | |
| 41 | @RestController | |
| 42 | @Slf4j | |
| 43 | public class StudentsController extends ApiController { | |
| 44 | ||
| 45 | public enum Status { | |
| 46 | INSERTED, UPDATED | |
| 47 | }; | |
| 48 | ||
| 49 | @Autowired | |
| 50 | CourseRepository courseRepository; | |
| 51 | ||
| 52 | @Autowired | |
| 53 | StudentRepository studentRepository; | |
| 54 | ||
| 55 | @Autowired | |
| 56 | UserRepository userRepository; | |
| 57 | ||
| 58 | @Operation(summary = "Get Students for course") | |
| 59 | @PreAuthorize("hasRole('ROLE_ADMIN')") | |
| 60 | @GetMapping("/all") | |
| 61 | public Iterable<Student> getStaff( | |
| 62 | @Parameter(name = "courseId") @RequestParam Long courseId) | |
| 63 | throws JsonProcessingException { | |
| 64 | ||
| 65 | Course course = courseRepository.findById(courseId) | |
| 66 |
1
1. lambda$getStaff$0 : replaced return value with null for edu/ucsb/cs156/happiercows/controllers/StudentsController::lambda$getStaff$0 → KILLED |
.orElseThrow(() -> new EntityNotFoundException(Course.class, courseId.toString())); |
| 67 | ||
| 68 | Iterable<Student> students = studentRepository.findByCourseId(course.getId()); | |
| 69 |
1
1. getStaff : replaced return value with null for edu/ucsb/cs156/happiercows/controllers/StudentsController::getStaff → KILLED |
return students; |
| 70 | } | |
| 71 | ||
| 72 | @Operation(summary = "Upload Students for Course in UCSB Egrades Format") | |
| 73 | @PreAuthorize("hasRole('ROLE_ADMIN')") | |
| 74 | @PostMapping(value = "/upload/egrades", consumes = { "multipart/form-data" }) | |
| 75 | public Map<String, String> getStaff( | |
| 76 | @Parameter(name = "courseId") @RequestParam Long courseId, | |
| 77 | @Parameter(name = "file") @RequestParam("file") MultipartFile file) | |
| 78 | throws JsonProcessingException, IOException, CsvException { | |
| 79 | ||
| 80 | Course course = courseRepository.findById(courseId) | |
| 81 |
1
1. lambda$getStaff$1 : replaced return value with null for edu/ucsb/cs156/happiercows/controllers/StudentsController::lambda$getStaff$1 → KILLED |
.orElseThrow(() -> new EntityNotFoundException(Course.class, courseId.toString())); |
| 82 | ||
| 83 | int counts[] = { 0, 0 }; | |
| 84 | ||
| 85 | try (InputStream inputStream = new BufferedInputStream(file.getInputStream()); | |
| 86 | InputStreamReader reader = new InputStreamReader(inputStream); | |
| 87 | CSVReader csvReader = new CSVReader(reader);) { | |
| 88 |
1
1. getStaff : removed call to com/opencsv/CSVReader::skip → KILLED |
csvReader.skip(2); |
| 89 | List<String[]> myEntries = csvReader.readAll(); | |
| 90 | for (String[] row : myEntries) { | |
| 91 | Student student = fromEgradesCSVRow(row); | |
| 92 |
1
1. getStaff : removed call to edu/ucsb/cs156/happiercows/entities/Student::setCourseId → KILLED |
student.setCourseId(course.getId()); |
| 93 | Status s = upsertStudent(student, course); | |
| 94 |
1
1. getStaff : Replaced integer addition with subtraction → KILLED |
counts[s.ordinal()]++; |
| 95 | } | |
| 96 | } | |
| 97 |
1
1. getStaff : replaced return value with Collections.emptyMap for edu/ucsb/cs156/happiercows/controllers/StudentsController::getStaff → KILLED |
return Map.of( |
| 98 | "filename", file.getOriginalFilename(), | |
| 99 | "message", String.format("Inserted %d new students, Updated %d students", | |
| 100 | counts[Status.INSERTED.ordinal()], counts[Status.UPDATED.ordinal()])); | |
| 101 | ||
| 102 | } | |
| 103 | ||
| 104 | public Student fromEgradesCSVRow(String[] row) { | |
| 105 |
1
1. fromEgradesCSVRow : replaced return value with null for edu/ucsb/cs156/happiercows/controllers/StudentsController::fromEgradesCSVRow → KILLED |
return Student.builder() |
| 106 | .fname(row[5]) | |
| 107 | .lname(row[4]) | |
| 108 | .studentId(row[1]) | |
| 109 | .email(row[10]) | |
| 110 | .build(); | |
| 111 | } | |
| 112 | ||
| 113 | public Status upsertStudent(Student student, Course course) { | |
| 114 | Optional<Student> existingStudent = studentRepository.findByCourseIdAndStudentId(course.getId(), | |
| 115 | student.getStudentId()); | |
| 116 |
1
1. upsertStudent : negated conditional → KILLED |
if (existingStudent.isPresent()) { |
| 117 | Student existingStudentObj = existingStudent.get(); | |
| 118 |
1
1. upsertStudent : removed call to edu/ucsb/cs156/happiercows/entities/Student::setFname → KILLED |
existingStudentObj.setFname(student.getFname()); |
| 119 |
1
1. upsertStudent : removed call to edu/ucsb/cs156/happiercows/entities/Student::setLname → KILLED |
existingStudentObj.setLname(student.getLname()); |
| 120 |
1
1. upsertStudent : removed call to edu/ucsb/cs156/happiercows/entities/Student::setEmail → KILLED |
existingStudentObj.setEmail(student.getEmail()); |
| 121 | studentRepository.save(existingStudentObj); | |
| 122 |
1
1. upsertStudent : replaced return value with null for edu/ucsb/cs156/happiercows/controllers/StudentsController::upsertStudent → KILLED |
return Status.UPDATED; |
| 123 | } else { | |
| 124 | studentRepository.save(student); | |
| 125 |
1
1. upsertStudent : replaced return value with null for edu/ucsb/cs156/happiercows/controllers/StudentsController::upsertStudent → KILLED |
return Status.INSERTED; |
| 126 | } | |
| 127 | ||
| 128 | } | |
| 129 | ||
| 130 | } | |
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