| 1 | package edu.ucsb.cs156.courses.services; | |
| 2 | ||
| 3 | import java.io.Reader; | |
| 4 | import java.io.StringReader; | |
| 5 | import java.util.ArrayList; | |
| 6 | import java.util.List; | |
| 7 | import java.util.Map; | |
| 8 | import java.util.stream.Collectors; | |
| 9 | ||
| 10 | import com.fasterxml.jackson.databind.ObjectMapper; | |
| 11 | import com.opencsv.CSVReader; | |
| 12 | ||
| 13 | import edu.ucsb.cs156.courses.entities.GradeData; | |
| 14 | import edu.ucsb.cs156.courses.models.Quarter; | |
| 15 | import edu.ucsb.cs156.courses.models.github.ApiResult; | |
| 16 | import edu.ucsb.cs156.courses.models.github.TreeElement; | |
| 17 | ||
| 18 | import org.springframework.web.client.RestTemplate; | |
| 19 | ||
| 20 | import lombok.extern.slf4j.Slf4j; | |
| 21 | ||
| 22 | import org.springframework.beans.factory.annotation.Autowired; | |
| 23 | import org.springframework.boot.web.client.RestTemplateBuilder; | |
| 24 | import org.springframework.http.HttpEntity; | |
| 25 | import org.springframework.http.HttpHeaders; | |
| 26 | import org.springframework.http.HttpMethod; | |
| 27 | import org.springframework.http.MediaType; | |
| 28 | import org.springframework.http.ResponseEntity; | |
| 29 | import org.springframework.stereotype.Service; | |
| 30 | ||
| 31 | @Service("UCSBGradeDataService") | |
| 32 | @Slf4j | |
| 33 | public class UCSBGradeDataServiceImpl implements UCSBGradeDataService { | |
| 34 | ||
| 35 |     private final RestTemplate restTemplate; | |
| 36 | ||
| 37 |     public UCSBGradeDataServiceImpl(RestTemplateBuilder restTemplateBuilder) { | |
| 38 |         restTemplate = restTemplateBuilder.build(); | |
| 39 |     } | |
| 40 | ||
| 41 |     @Autowired | |
| 42 |     ObjectMapper mapper; | |
| 43 | ||
| 44 |     public static final String REPO_OWNER_AND_NAME = "ucsb-cs156/UCSB_Grades"; | |
| 45 |     public static final String API_ENDPOINT = "https://api.github.com/repos/" | |
| 46 |             + REPO_OWNER_AND_NAME + | |
| 47 |             "/git/trees/main?recursive=1"; | |
| 48 | ||
| 49 |     @Override | |
| 50 |     public List<String> getUrls() throws Exception { | |
| 51 | ||
| 52 |         log.info("getting data from {}", API_ENDPOINT); | |
| 53 | ||
| 54 |         HttpHeaders headers = new HttpHeaders(); | |
| 55 | 
1
1. getUrls : removed call to org/springframework/http/HttpHeaders::setAccept → KILLED | 
        headers.setAccept(List.of(MediaType.APPLICATION_JSON)); | 
| 56 | 
1
1. getUrls : removed call to org/springframework/http/HttpHeaders::setContentType → KILLED | 
        headers.setContentType(MediaType.APPLICATION_JSON); | 
| 57 | ||
| 58 |         HttpEntity<String> entity = new HttpEntity<>(headers); | |
| 59 |         Map<String, String> uriVariables = Map.of("recursive", "1"); | |
| 60 | ||
| 61 |         ResponseEntity<String> re = restTemplate.exchange(API_ENDPOINT, HttpMethod.GET, entity, String.class, | |
| 62 |                 uriVariables); | |
| 63 | ||
| 64 |         ApiResult apiResult = mapper.readValue(re.getBody(), ApiResult.class); | |
| 65 | ||
| 66 |         List<TreeElement> treeElements = apiResult.getTree(); | |
| 67 | 
1
1. lambda$getUrls$0 : replaced return value with "" for edu/ucsb/cs156/courses/services/UCSBGradeDataServiceImpl::lambda$getUrls$0 → KILLED | 
        List<String> urls = treeElements.stream().map(treeElement -> treeElement.getPath()) | 
| 68 | 
3
1. lambda$getUrls$1 : negated conditional → KILLED 2. lambda$getUrls$1 : negated conditional → KILLED 3. lambda$getUrls$1 : replaced boolean return with true for edu/ucsb/cs156/courses/services/UCSBGradeDataServiceImpl::lambda$getUrls$1 → KILLED  | 
                .filter(path -> (path.startsWith("quarters/") && path.endsWith(".csv"))).collect(Collectors.toList()); | 
| 69 |         List<String> rawUrls = urls.stream() | |
| 70 | 
1
1. lambda$getUrls$2 : replaced return value with "" for edu/ucsb/cs156/courses/services/UCSBGradeDataServiceImpl::lambda$getUrls$2 → KILLED | 
                .map(url -> "https://raw.githubusercontent.com/" + REPO_OWNER_AND_NAME + "/main/" + url) | 
| 71 |                 .collect(Collectors.toList()); | |
| 72 | 
1
1. getUrls : replaced return value with Collections.emptyList for edu/ucsb/cs156/courses/services/UCSBGradeDataServiceImpl::getUrls → KILLED | 
        return rawUrls; | 
| 73 |     } | |
| 74 | ||
| 75 |     @Override | |
| 76 |     public List<GradeData> getGradeData(String url) throws Exception { | |
| 77 |         log.info("getting data from {}", url); | |
| 78 |         HttpHeaders headers = new HttpHeaders(); | |
| 79 | 
1
1. getGradeData : removed call to org/springframework/http/HttpHeaders::setAccept → KILLED | 
        headers.setAccept(List.of(MediaType.APPLICATION_JSON)); | 
| 80 | 
1
1. getGradeData : removed call to org/springframework/http/HttpHeaders::setContentType → KILLED | 
        headers.setContentType(MediaType.APPLICATION_JSON); | 
| 81 | ||
| 82 |         HttpEntity<String> entity = new HttpEntity<>(headers); | |
| 83 |         ResponseEntity<String> re = restTemplate.exchange(url, HttpMethod.GET, entity, String.class); | |
| 84 |         String csvData = re.getBody(); | |
| 85 | 
1
1. getGradeData : replaced return value with Collections.emptyList for edu/ucsb/cs156/courses/services/UCSBGradeDataServiceImpl::getGradeData → KILLED | 
        return parse(new StringReader(csvData)); | 
| 86 |     } | |
| 87 | ||
| 88 |     @Override | |
| 89 |     public List<GradeData> parse(Reader reader) throws Exception { | |
| 90 |         List<GradeData> gradeDataList = new ArrayList<GradeData>(); | |
| 91 |         log.info("Parsing CSV file with grade data... "); | |
| 92 |         CSVReader csvReader = new CSVReader(reader); | |
| 93 |         csvReader.skip(1); | |
| 94 |         List<String[]> myEntries = csvReader.readAll(); | |
| 95 |         for (String[] row : myEntries) { | |
| 96 |             String yyyyq = Integer.toString(Quarter.qyyToyyyyQ(row[0])); | |
| 97 |             GradeData gradeData = GradeData.builder() | |
| 98 |                     .yyyyq(yyyyq) | |
| 99 |                     .course(row[2]) | |
| 100 |                     .professor(row[3]) | |
| 101 |                     .grade(row[4]) | |
| 102 |                     .count(Integer.parseInt(row[5])) | |
| 103 |                     .build(); | |
| 104 |             log.info("Parsed: " + gradeData.toString()); | |
| 105 |             gradeDataList.add(gradeData); | |
| 106 |         } | |
| 107 |         csvReader.close(); | |
| 108 | 
1
1. parse : replaced return value with Collections.emptyList for edu/ucsb/cs156/courses/services/UCSBGradeDataServiceImpl::parse → KILLED | 
        return gradeDataList; | 
| 109 |     } | |
| 110 | } | |
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