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Оптимизация работы с БД

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sshkurov
2022-02-05 04:03:41 +03:00
parent d255584555
commit 70449e435a
6 changed files with 34 additions and 24 deletions
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20
src/main/java/ru/serega6531/packmate/service/StreamService.java
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@@ -7,12 +7,10 @@ import org.springframework.beans.factory.annotation.Value;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.domain.Sort;
import org.springframework.data.jpa.domain.Specification;
import org.springframework.http.HttpStatus;
import org.springframework.scheduling.annotation.Async;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Propagation;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.web.server.ResponseStatusException;
import ru.serega6531.packmate.model.*;
import ru.serega6531.packmate.model.enums.PatternActionType;
import ru.serega6531.packmate.model.enums.PatternDirectionType;
@@ -245,10 +243,7 @@ public class StreamService {
}
public List<Packet> getPackets(long streamId) {
return repository.getStreamWithPackets(streamId)
.map(Stream::getPackets)
.map(packets -> packets.stream().distinct().collect(Collectors.toList()))
.orElseThrow(() -> new ResponseStatusException(HttpStatus.NOT_FOUND));
return repository.getPackets(streamId);
}
/**
@@ -267,11 +262,14 @@ public class StreamService {
public List<Stream> findAll(Pagination pagination, Optional<Integer> service, boolean onlyFavorites) {
PageRequest page = PageRequest.of(0, pagination.getPageSize(), pagination.getDirection(), "id");
Specification<Stream> spec;
if (pagination.getDirection() == Sort.Direction.ASC) {
spec = streamIdGreaterThan(pagination.getStartingFrom());
} else {
spec = streamIdLessThan(pagination.getStartingFrom());
Specification<Stream> spec = Specification.where(null);
if (pagination.getStartingFrom() != null) {
if (pagination.getDirection() == Sort.Direction.ASC) {
spec = spec.and(streamIdGreaterThan(pagination.getStartingFrom()));
} else {
spec = spec.and(streamIdLessThan(pagination.getStartingFrom()));
}
}
if (service.isPresent()) {