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refactor and add event service that merges query results
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package no.fintlabs; | ||
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import lombok.AllArgsConstructor; | ||
import no.fintlabs.model.*; | ||
import no.fintlabs.repositories.EventRepository; | ||
import org.springframework.data.domain.Page; | ||
import org.springframework.data.domain.PageImpl; | ||
import org.springframework.data.domain.Pageable; | ||
import org.springframework.http.HttpStatus; | ||
import org.springframework.http.ResponseEntity; | ||
import org.springframework.stereotype.Service; | ||
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import java.time.OffsetDateTime; | ||
import java.util.*; | ||
import java.util.function.Function; | ||
import java.util.stream.Collectors; | ||
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@Service | ||
@AllArgsConstructor | ||
public class EventService { | ||
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private final EventRepository eventRepository; | ||
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public void save(Event event) { | ||
eventRepository.save(event); | ||
} | ||
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public Page<EventDto> findAll(Pageable pageable) { | ||
return convertPageOfEventIntoPageOfEventDto(eventRepository.findAll(pageable)); | ||
} | ||
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public Page<EventDto> getMergedLatestEvents(Pageable pageable) { | ||
List<Event> latestEvents = eventRepository | ||
.findLatestEventPerSourceApplicationInstanceId(pageable).getContent(); | ||
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List<Event> latestNonDeletedEvents = eventRepository | ||
.findLatestEventNotDeletedPerSourceApplicationInstanceId(pageable).getContent(); | ||
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return getEventDtos(pageable, latestNonDeletedEvents, latestEvents); | ||
} | ||
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public Page<EventDto> getMergedLatestEventsWhereSourceApplicationIdIn( | ||
List<Long> sourceApplicationIds, | ||
Pageable pageable | ||
) { | ||
List<Event> latestEvents = eventRepository | ||
.findLatestEventPerSourceApplicationInstanceIdAndSourceApplicationIdIn( | ||
sourceApplicationIds, | ||
pageable | ||
).getContent(); | ||
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List<Event> latestNonDeletedEvents = eventRepository | ||
.findLatestEventNotDeletedPerSourceApplicationInstanceIdAndSourceApplicationIdIn( | ||
sourceApplicationIds, | ||
pageable | ||
).getContent(); | ||
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return getEventDtos(pageable, latestNonDeletedEvents, latestEvents); | ||
} | ||
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private PageImpl<EventDto> getEventDtos(Pageable pageable, List<Event> latestNonDeletedEvents, List<Event> latestEvents) { | ||
Map<String, Event> nonDeletedEventMap = latestNonDeletedEvents.stream() | ||
.collect( | ||
Collectors.toMap( | ||
event -> event.getInstanceFlowHeaders().getSourceApplicationInstanceId(), | ||
event -> event | ||
) | ||
); | ||
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List<EventDto> mergedEvents = new ArrayList<>(); | ||
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for (Event latestEvent : latestEvents) { | ||
if ("instance-deleted".equals(latestEvent.getName())) { | ||
Event nonDeletedEvent = nonDeletedEventMap | ||
.get(latestEvent.getInstanceFlowHeaders().getSourceApplicationInstanceId()); | ||
if (nonDeletedEvent != null) { | ||
EventDto updatedEventDto = EventToEventDto(nonDeletedEvent); | ||
updatedEventDto.setStatus("deleted"); | ||
mergedEvents.add(updatedEventDto); | ||
} | ||
} else { | ||
EventDto eventDto = EventToEventDto(latestEvent); | ||
mergedEvents.add(eventDto); | ||
} | ||
} | ||
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int start = (int) pageable.getOffset(); | ||
int end = Math.min((start + pageable.getPageSize()), mergedEvents.size()); | ||
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List<EventDto> paginatedList = mergedEvents.subList(start, end); | ||
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return new PageImpl<>(paginatedList, pageable, mergedEvents.size()); | ||
} | ||
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public ResponseEntity<?> storeManualEvent(ManualEventDto manualEventDto, Function<Event, Event> existingToNewEvent) { | ||
Optional<Event> optionalEvent = eventRepository. | ||
findFirstByInstanceFlowHeadersSourceApplicationIdAndInstanceFlowHeadersSourceApplicationInstanceIdAndInstanceFlowHeadersSourceApplicationIntegrationIdOrderByTimestampDesc( | ||
manualEventDto.getSourceApplicationId(), | ||
manualEventDto.getSourceApplicationInstanceId(), | ||
manualEventDto.getSourceApplicationIntegrationId() | ||
); | ||
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if (optionalEvent.isEmpty()) { | ||
return ResponseEntity.status(HttpStatus.NOT_FOUND).body("Event not found."); | ||
} | ||
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Event event = optionalEvent.get(); | ||
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if (!event.getType().equals(EventType.ERROR)) { | ||
return ResponseEntity.status(HttpStatus.BAD_REQUEST).body("Event is not of type ERROR"); | ||
} | ||
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Event newEvent = existingToNewEvent.apply(event); | ||
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this.save(newEvent); | ||
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return ResponseEntity.ok(newEvent); | ||
} | ||
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public Event createManualEvent(Event event, String name, String archiveId) { | ||
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InstanceFlowHeadersEmbeddable.InstanceFlowHeadersEmbeddableBuilder headersEmbeddableBuilder = | ||
event.getInstanceFlowHeaders() | ||
.toBuilder() | ||
.correlationId(UUID.randomUUID()); | ||
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if (archiveId != null && !archiveId.isEmpty()) { | ||
headersEmbeddableBuilder.archiveInstanceId(archiveId); | ||
} | ||
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InstanceFlowHeadersEmbeddable newInstanceFlowHeaders = headersEmbeddableBuilder.build(); | ||
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return Event.builder() | ||
.instanceFlowHeaders(newInstanceFlowHeaders) | ||
.name(name) | ||
.timestamp(OffsetDateTime.now()) | ||
.type(EventType.INFO) | ||
.applicationId(event.getApplicationId()) | ||
.build(); | ||
} | ||
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public Page<EventDto> findAllByInstanceFlowHeadersSourceApplicationIdAndInstanceFlowHeadersSourceApplicationInstanceId( | ||
Long sourceApplicationId, | ||
String sourceApplicationInstanceId, | ||
Pageable pageable | ||
) { | ||
return convertPageOfEventIntoPageOfEventDto( | ||
eventRepository.findAllByInstanceFlowHeadersSourceApplicationIdAndInstanceFlowHeadersSourceApplicationInstanceId( | ||
sourceApplicationId, sourceApplicationInstanceId, pageable | ||
) | ||
); | ||
} | ||
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public Page<EventDto> findAllByInstanceFlowHeadersSourceApplicationIdIn( | ||
List<Long> sourceApplicationIds, | ||
Pageable pageable | ||
) { | ||
return convertPageOfEventIntoPageOfEventDto( | ||
eventRepository.findAllByInstanceFlowHeadersSourceApplicationIdIn( | ||
sourceApplicationIds, | ||
pageable | ||
) | ||
); | ||
} | ||
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private Page<EventDto> convertPageOfEventIntoPageOfEventDto(Page<Event> events) { | ||
return events.map(this::EventToEventDto); | ||
} | ||
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private EventDto EventToEventDto(Event event) { | ||
return EventDto.builder() | ||
.instanceFlowHeaders(event.getInstanceFlowHeaders()) | ||
.name(event.getName()) | ||
.timestamp(event.getTimestamp()) | ||
.type(event.getType()) | ||
.applicationId(event.getApplicationId()) | ||
.errors(event.getErrors()) | ||
.build(); | ||
} | ||
} |
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,23 @@ | ||
package no.fintlabs.model; | ||
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import lombok.*; | ||
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import java.time.OffsetDateTime; | ||
import java.util.Collection; | ||
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@Getter | ||
@Setter | ||
@Builder(toBuilder = true) | ||
@AllArgsConstructor | ||
public class EventDto { | ||
private InstanceFlowHeadersEmbeddable instanceFlowHeaders; | ||
private String name; | ||
private OffsetDateTime timestamp; | ||
private EventType type; | ||
private String applicationId; | ||
private Collection<Error> errors; | ||
private String status; | ||
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public EventDto() { | ||
} | ||
} |
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