| 1 | package edu.ucsb.cs156.courses.services; | |
| 2 | ||
| 3 | import com.fasterxml.jackson.databind.ObjectMapper; | |
| 4 | import edu.ucsb.cs156.courses.documents.ConvertedSection; | |
| 5 | import edu.ucsb.cs156.courses.documents.CoursePage; | |
| 6 | import java.util.Arrays; | |
| 7 | import java.util.HashMap; | |
| 8 | import java.util.List; | |
| 9 | import java.util.Map; | |
| 10 | import lombok.extern.slf4j.Slf4j; | |
| 11 | import org.springframework.beans.factory.annotation.Autowired; | |
| 12 | import org.springframework.beans.factory.annotation.Value; | |
| 13 | import org.springframework.boot.web.client.RestTemplateBuilder; | |
| 14 | import org.springframework.http.HttpEntity; | |
| 15 | import org.springframework.http.HttpHeaders; | |
| 16 | import org.springframework.http.HttpMethod; | |
| 17 | import org.springframework.http.HttpStatus; | |
| 18 | import org.springframework.http.MediaType; | |
| 19 | import org.springframework.http.ResponseEntity; | |
| 20 | import org.springframework.stereotype.Service; | |
| 21 | import org.springframework.web.client.RestTemplate; | |
| 22 | ||
| 23 | /** Service object that wraps the UCSB Academic Curriculum API */ | |
| 24 | @Service | |
| 25 | @Slf4j | |
| 26 | public class UCSBCurriculumService { | |
| 27 | ||
| 28 |   @Autowired private ObjectMapper objectMapper; | |
| 29 | ||
| 30 |   @Value("${app.ucsb.api.consumer_key}") | |
| 31 |   private String apiKey; | |
| 32 | ||
| 33 |   private RestTemplate restTemplate = new RestTemplate(); | |
| 34 | ||
| 35 |   public UCSBCurriculumService(RestTemplateBuilder restTemplateBuilder) throws Exception { | |
| 36 |     restTemplate = restTemplateBuilder.build(); | |
| 37 |   } | |
| 38 | ||
| 39 |   public static final String CURRICULUM_ENDPOINT = | |
| 40 |       "https://api.ucsb.edu/academics/curriculums/v1/classes/search"; | |
| 41 | ||
| 42 |   public static final String SUBJECTS_ENDPOINT = | |
| 43 |       "https://api.ucsb.edu/students/lookups/v1/subjects"; | |
| 44 | ||
| 45 |   public static final String SECTION_ENDPOINT = | |
| 46 |       "https://api.ucsb.edu/academics/curriculums/v1/classsection/{quarter}/{enrollcode}"; | |
| 47 | ||
| 48 |   public static final String ALL_SECTIONS_ENDPOINT = | |
| 49 |       "https://api.ucsb.edu/academics/curriculums/v3/classes/{quarter}/{enrollcode}"; | |
| 50 | ||
| 51 |   public String getJSON(String subjectArea, String quarter, String courseLevel) throws Exception { | |
| 52 | ||
| 53 |     HttpHeaders headers = new HttpHeaders(); | |
| 54 | 
1
1. getJSON : removed call to org/springframework/http/HttpHeaders::setAccept → KILLED | 
    headers.setAccept(Arrays.asList(MediaType.APPLICATION_JSON)); | 
| 55 | 
1
1. getJSON : removed call to org/springframework/http/HttpHeaders::setContentType → KILLED | 
    headers.setContentType(MediaType.APPLICATION_JSON); | 
| 56 | 
1
1. getJSON : removed call to org/springframework/http/HttpHeaders::set → KILLED | 
    headers.set("ucsb-api-version", "1.0"); | 
| 57 | 
1
1. getJSON : removed call to org/springframework/http/HttpHeaders::set → KILLED | 
    headers.set("ucsb-api-key", this.apiKey); | 
| 58 | ||
| 59 |     HttpEntity<String> entity = new HttpEntity<>("body", headers); | |
| 60 | ||
| 61 |     String params = | |
| 62 |         String.format( | |
| 63 |             "?quarter=%s&subjectCode=%s&objLevelCode=%s&pageNumber=%d&pageSize=%d&includeClassSections=%s", | |
| 64 |             quarter, subjectArea, courseLevel, 1, 100, "true"); | |
| 65 |     String url = CURRICULUM_ENDPOINT + params; | |
| 66 | ||
| 67 | 
1
1. getJSON : negated conditional → KILLED | 
    if (courseLevel.equals("A")) { | 
| 68 |       params = | |
| 69 |           String.format( | |
| 70 |               "?quarter=%s&subjectCode=%s&pageNumber=%d&pageSize=%d&includeClassSections=%s", | |
| 71 |               quarter, subjectArea, 1, 100, "true"); | |
| 72 |       url = CURRICULUM_ENDPOINT + params; | |
| 73 |     } | |
| 74 | ||
| 75 |     log.info("url=" + url); | |
| 76 | ||
| 77 |     String retVal = ""; | |
| 78 |     MediaType contentType = null; | |
| 79 |     HttpStatus statusCode = null; | |
| 80 | ||
| 81 |     ResponseEntity<String> re = restTemplate.exchange(url, HttpMethod.GET, entity, String.class); | |
| 82 |     contentType = re.getHeaders().getContentType(); | |
| 83 |     statusCode = (HttpStatus) re.getStatusCode(); | |
| 84 |     retVal = re.getBody(); | |
| 85 | ||
| 86 |     log.info("json: {} contentType: {} statusCode: {}", retVal, contentType, statusCode); | |
| 87 | 
1
1. getJSON : replaced return value with "" for edu/ucsb/cs156/courses/services/UCSBCurriculumService::getJSON → KILLED | 
    return retVal; | 
| 88 |   } | |
| 89 | ||
| 90 |   public List<ConvertedSection> getConvertedSections( | |
| 91 |       String subjectArea, String quarter, String courseLevel) throws Exception { | |
| 92 |     String json = getJSON(subjectArea, quarter, courseLevel); | |
| 93 |     CoursePage coursePage = objectMapper.readValue(json, CoursePage.class); | |
| 94 |     List<ConvertedSection> result = coursePage.convertedSections(); | |
| 95 | 
1
1. getConvertedSections : replaced return value with Collections.emptyList for edu/ucsb/cs156/courses/services/UCSBCurriculumService::getConvertedSections → KILLED | 
    return result; | 
| 96 |   } | |
| 97 | ||
| 98 |   public String getSectionJSON(String subjectArea, String quarter, String courseLevel) | |
| 99 |       throws Exception { | |
| 100 |     List<ConvertedSection> l = getConvertedSections(subjectArea, quarter, courseLevel); | |
| 101 | ||
| 102 |     String arrayToJson = objectMapper.writeValueAsString(l); | |
| 103 | ||
| 104 | 
1
1. getSectionJSON : replaced return value with "" for edu/ucsb/cs156/courses/services/UCSBCurriculumService::getSectionJSON → KILLED | 
    return arrayToJson; | 
| 105 |   } | |
| 106 | ||
| 107 |   public String getSubjectsJSON() throws Exception { | |
| 108 | ||
| 109 |     HttpHeaders headers = new HttpHeaders(); | |
| 110 | 
1
1. getSubjectsJSON : removed call to org/springframework/http/HttpHeaders::setAccept → KILLED | 
    headers.setAccept(Arrays.asList(MediaType.APPLICATION_JSON)); | 
| 111 | 
1
1. getSubjectsJSON : removed call to org/springframework/http/HttpHeaders::setContentType → KILLED | 
    headers.setContentType(MediaType.APPLICATION_JSON); | 
| 112 | 
1
1. getSubjectsJSON : removed call to org/springframework/http/HttpHeaders::set → KILLED | 
    headers.set("ucsb-api-version", "1.0"); | 
| 113 | 
1
1. getSubjectsJSON : removed call to org/springframework/http/HttpHeaders::set → KILLED | 
    headers.set("ucsb-api-key", this.apiKey); | 
| 114 | ||
| 115 |     HttpEntity<String> entity = new HttpEntity<>("body", headers); | |
| 116 | ||
| 117 |     log.info("url=" + SUBJECTS_ENDPOINT); | |
| 118 | ||
| 119 |     String retVal = ""; | |
| 120 |     MediaType contentType = null; | |
| 121 |     HttpStatus statusCode = null; | |
| 122 | ||
| 123 |     ResponseEntity<String> re = | |
| 124 |         restTemplate.exchange(SUBJECTS_ENDPOINT, HttpMethod.GET, entity, String.class); | |
| 125 |     contentType = re.getHeaders().getContentType(); | |
| 126 |     statusCode = (HttpStatus) re.getStatusCode(); | |
| 127 |     retVal = re.getBody(); | |
| 128 | ||
| 129 |     log.info("json: {} contentType: {} statusCode: {}", retVal, contentType, statusCode); | |
| 130 | 
1
1. getSubjectsJSON : replaced return value with "" for edu/ucsb/cs156/courses/services/UCSBCurriculumService::getSubjectsJSON → KILLED | 
    return retVal; | 
| 131 |   } | |
| 132 | ||
| 133 |   /** | |
| 134 |    * This method retrieves exactly one section matching the enrollCode and quarter arguments, if | |
| 135 |    * such a section exists. | |
| 136 |    */ | |
| 137 |   public String getSection(String enrollCode, String quarter) throws Exception { | |
| 138 | ||
| 139 |     HttpHeaders headers = new HttpHeaders(); | |
| 140 | 
1
1. getSection : removed call to org/springframework/http/HttpHeaders::setAccept → KILLED | 
    headers.setAccept(Arrays.asList(MediaType.APPLICATION_JSON)); | 
| 141 | 
1
1. getSection : removed call to org/springframework/http/HttpHeaders::setContentType → KILLED | 
    headers.setContentType(MediaType.APPLICATION_JSON); | 
| 142 | 
1
1. getSection : removed call to org/springframework/http/HttpHeaders::set → KILLED | 
    headers.set("ucsb-api-version", "1.0"); | 
| 143 | 
1
1. getSection : removed call to org/springframework/http/HttpHeaders::set → KILLED | 
    headers.set("ucsb-api-key", this.apiKey); | 
| 144 | ||
| 145 |     HttpEntity<String> entity = new HttpEntity<>("body", headers); | |
| 146 | ||
| 147 |     String url = SECTION_ENDPOINT; | |
| 148 | ||
| 149 |     log.info("url=" + url); | |
| 150 | ||
| 151 |     Map<String, String> params = new HashMap<>(); | |
| 152 |     params.put("quarter", quarter); | |
| 153 |     params.put("enrollcode", enrollCode); | |
| 154 | ||
| 155 |     String retVal = ""; | |
| 156 |     MediaType contentType = null; | |
| 157 |     HttpStatus statusCode = null; | |
| 158 | ||
| 159 |     ResponseEntity<String> re = | |
| 160 |         restTemplate.exchange(url, HttpMethod.GET, entity, String.class, params); | |
| 161 |     contentType = re.getHeaders().getContentType(); | |
| 162 |     statusCode = (HttpStatus) re.getStatusCode(); | |
| 163 |     retVal = re.getBody(); | |
| 164 | ||
| 165 | 
1
1. getSection : negated conditional → KILLED | 
    if (retVal.equals("null")) { | 
| 166 |       retVal = "{\"error\": \"Enroll code doesn't exist in that quarter.\"}"; | |
| 167 |     } | |
| 168 | ||
| 169 |     log.info("json: {} contentType: {} statusCode: {}", retVal, contentType, statusCode); | |
| 170 | 
1
1. getSection : replaced return value with "" for edu/ucsb/cs156/courses/services/UCSBCurriculumService::getSection → KILLED | 
    return retVal; | 
| 171 |   } | |
| 172 | ||
| 173 |   /** | |
| 174 |    * This method retrieves all of the sections related to a certain enroll code. For example, if the | |
| 175 |    * enrollCode is for a discussion section, the lecture section and all related discussion sections | |
| 176 |    * will also be returned. | |
| 177 |    */ | |
| 178 |   public String getAllSections(String enrollCode, String quarter) throws Exception { | |
| 179 | ||
| 180 |     HttpHeaders headers = new HttpHeaders(); | |
| 181 | 
1
1. getAllSections : removed call to org/springframework/http/HttpHeaders::setAccept → KILLED | 
    headers.setAccept(Arrays.asList(MediaType.APPLICATION_JSON)); | 
| 182 | 
1
1. getAllSections : removed call to org/springframework/http/HttpHeaders::setContentType → KILLED | 
    headers.setContentType(MediaType.APPLICATION_JSON); | 
| 183 | 
1
1. getAllSections : removed call to org/springframework/http/HttpHeaders::set → KILLED | 
    headers.set("ucsb-api-version", "3.0"); | 
| 184 | 
1
1. getAllSections : removed call to org/springframework/http/HttpHeaders::set → KILLED | 
    headers.set("ucsb-api-key", this.apiKey); | 
| 185 | ||
| 186 |     HttpEntity<String> entity = new HttpEntity<>("body", headers); | |
| 187 | ||
| 188 |     String url = ALL_SECTIONS_ENDPOINT; | |
| 189 | ||
| 190 |     log.info("url=" + url); | |
| 191 | ||
| 192 |     Map<String, String> params = new HashMap<>(); | |
| 193 |     params.put("quarter", quarter); | |
| 194 |     params.put("enrollcode", enrollCode); | |
| 195 | ||
| 196 |     String retVal = ""; | |
| 197 |     MediaType contentType = null; | |
| 198 |     HttpStatus statusCode = null; | |
| 199 | ||
| 200 |     ResponseEntity<String> re = | |
| 201 |         restTemplate.exchange(url, HttpMethod.GET, entity, String.class, params); | |
| 202 |     contentType = re.getHeaders().getContentType(); | |
| 203 |     statusCode = (HttpStatus) re.getStatusCode(); | |
| 204 |     retVal = re.getBody(); | |
| 205 | ||
| 206 | 
1
1. getAllSections : negated conditional → KILLED | 
    if (retVal.equals("null")) { | 
| 207 |       retVal = "{\"error\": \"Enroll code doesn't exist in that quarter.\"}"; | |
| 208 |     } | |
| 209 | ||
| 210 |     log.info("json: {} contentType: {} statusCode: {}", retVal, contentType, statusCode); | |
| 211 | 
1
1. getAllSections : replaced return value with "" for edu/ucsb/cs156/courses/services/UCSBCurriculumService::getAllSections → KILLED | 
    return retVal; | 
| 212 |   } | |
| 213 | ||
| 214 |   public String getJSONbyQtrEnrollCd(String quarter, String enrollCd) throws Exception { | |
| 215 | ||
| 216 |     HttpHeaders headers = new HttpHeaders(); | |
| 217 | 
1
1. getJSONbyQtrEnrollCd : removed call to org/springframework/http/HttpHeaders::setAccept → KILLED | 
    headers.setAccept(Arrays.asList(MediaType.APPLICATION_JSON)); | 
| 218 | 
1
1. getJSONbyQtrEnrollCd : removed call to org/springframework/http/HttpHeaders::setContentType → KILLED | 
    headers.setContentType(MediaType.APPLICATION_JSON); | 
| 219 | 
1
1. getJSONbyQtrEnrollCd : removed call to org/springframework/http/HttpHeaders::set → KILLED | 
    headers.set("ucsb-api-version", "1.0"); | 
| 220 | 
1
1. getJSONbyQtrEnrollCd : removed call to org/springframework/http/HttpHeaders::set → KILLED | 
    headers.set("ucsb-api-key", this.apiKey); | 
| 221 | ||
| 222 |     HttpEntity<String> entity = new HttpEntity<>("body", headers); | |
| 223 | ||
| 224 |     String url = | |
| 225 |         "https://api.ucsb.edu/academics/curriculums/v3/classsection/" + quarter + "/" + enrollCd; | |
| 226 | ||
| 227 |     log.info("url=" + url); | |
| 228 | ||
| 229 |     String retVal = ""; | |
| 230 |     MediaType contentType = null; | |
| 231 |     HttpStatus statusCode = null; | |
| 232 | ||
| 233 |     ResponseEntity<String> re = restTemplate.exchange(url, HttpMethod.GET, entity, String.class); | |
| 234 |     contentType = re.getHeaders().getContentType(); | |
| 235 |     statusCode = (HttpStatus) re.getStatusCode(); | |
| 236 |     retVal = re.getBody(); | |
| 237 | ||
| 238 |     log.info("json: {} contentType: {} statusCode: {}", retVal, contentType, statusCode); | |
| 239 | 
1
1. getJSONbyQtrEnrollCd : replaced return value with "" for edu/ucsb/cs156/courses/services/UCSBCurriculumService::getJSONbyQtrEnrollCd → KILLED | 
    return retVal; | 
| 240 |   } | |
| 241 | } | |
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