update

src/main/java/research/loghunter/service/ErrorLogService.java

@@ -0,0 +1,67 @@
+package research.loghunter.service;
+
+import lombok.RequiredArgsConstructor;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.PageRequest;
+import org.springframework.data.domain.Pageable;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+import research.loghunter.dto.ErrorLogDto;
+import research.loghunter.entity.ErrorLog;
+import research.loghunter.repository.ErrorLogRepository;
+
+import java.time.LocalDateTime;
+
+@Service
+@RequiredArgsConstructor
+@Transactional(readOnly = true)
+public class ErrorLogService {
+
+    private final ErrorLogRepository errorLogRepository;
+
+    public Page<ErrorLogDto> search(
+            Long serverId,
+            Long patternId,
+            String severity,
+            LocalDateTime startDate,
+            LocalDateTime endDate,
+            String keyword,
+            int page,
+            int size
+    ) {
+        Pageable pageable = PageRequest.of(page, size);
+        Page<ErrorLog> errorLogs = errorLogRepository.searchErrors(
+                serverId, patternId, severity, startDate, endDate, keyword, pageable);
+        
+        return errorLogs.map(this::toDto);
+    }
+
+    public Page<ErrorLogDto> findByServerId(Long serverId, int page, int size) {
+        Pageable pageable = PageRequest.of(page, size);
+        Page<ErrorLog> errorLogs = errorLogRepository.findByServerIdOrderByOccurredAtDesc(serverId, pageable);
+        return errorLogs.map(this::toDto);
+    }
+
+    public ErrorLogDto findById(Long id) {
+        return errorLogRepository.findById(id)
+                .map(this::toDto)
+                .orElseThrow(() -> new RuntimeException("ErrorLog not found: " + id));
+    }
+
+    private ErrorLogDto toDto(ErrorLog errorLog) {
+        return ErrorLogDto.builder()
+                .id(errorLog.getId())
+                .serverId(errorLog.getServer().getId())
+                .serverName(errorLog.getServer().getName())
+                .patternId(errorLog.getPattern().getId())
+                .patternName(errorLog.getPattern().getName())
+                .filePath(errorLog.getFilePath())
+                .lineNumber(errorLog.getLineNumber())
+                .summary(errorLog.getSummary())
+                .context(errorLog.getContext())
+                .severity(errorLog.getSeverity())
+                .occurredAt(errorLog.getOccurredAt())
+                .createdAt(errorLog.getCreatedAt())
+                .build();
+    }
+}