| 1 | package edu.ucsb.cs156.courses.services; | |
| 2 | ||
| 3 | import edu.ucsb.cs156.courses.collections.UpdateCollection; | |
| 4 | import edu.ucsb.cs156.courses.documents.Update; | |
| 5 | import java.time.LocalDateTime; | |
| 6 | import java.util.Optional; | |
| 7 | import org.springframework.beans.factory.annotation.Autowired; | |
| 8 | import org.springframework.boot.context.properties.ConfigurationProperties; | |
| 9 | import org.springframework.data.domain.Page; | |
| 10 | import org.springframework.data.domain.PageRequest; | |
| 11 | import org.springframework.data.domain.Sort.Direction; | |
| 12 | import org.springframework.stereotype.Service; | |
| 13 | ||
| 14 | @Service("UpdateService") | |
| 15 | @ConfigurationProperties | |
| 16 | public class UpdateService { | |
| 17 | /** | |
| 18 | * Get the last update for a given subject area and quarter | |
| 19 | * | |
| 20 | * @param updateCollection | |
| 21 | * @param subjectArea | |
| 22 | * @param quarterYYYYQ | |
| 23 | * @return the last update | |
| 24 | * @throws Exception | |
| 25 | */ | |
| 26 | @Autowired private UpdateCollection updateCollection; | |
| 27 | ||
| 28 | public Optional<LocalDateTime> getLastUpdate(String subjectArea, String quarterYYYYQ) | |
| 29 | throws Exception { | |
| 30 | ||
| 31 | PageRequest pageRequest_0_1_DESC_lastUpdate = | |
| 32 | PageRequest.of(0, 1, Direction.DESC, "lastUpdate"); | |
| 33 | ||
| 34 | Page<Update> updatePage = | |
| 35 | updateCollection.findBySubjectAreaAndQuarter( | |
| 36 | subjectArea, quarterYYYYQ, pageRequest_0_1_DESC_lastUpdate); | |
| 37 |
1
1. getLastUpdate : negated conditional → KILLED |
if (updatePage.getTotalElements() == 0) { |
| 38 | return Optional.empty(); | |
| 39 | } | |
| 40 | Update update = updatePage.getContent().get(0); | |
| 41 |
1
1. getLastUpdate : replaced return value with Optional.empty for edu/ucsb/cs156/courses/services/UpdateService::getLastUpdate → KILLED |
return Optional.of(update.getLastUpdate()); |
| 42 | } | |
| 43 | } | |
Mutations | ||
| 37 |
1.1 |
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| 41 |
1.1 |