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⚡ Bolt: 콘텐츠 해시 16진수 문자열 변환 최적화 #26

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seonghobae wants to merge 6 commits into from
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⚡ Bolt: 콘텐츠 해시 16진수 문자열 변환 최적화 #26

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e6cd184
⚡ Bolt: 파일 업로드 콘텐츠 해시 생성 최적화
seonghobae Jun 25, 2026
d5b1689
Cover optimized content hash encoding
seonghobae Jun 28, 2026
ee1f7b8
Merge remote-tracking branch 'origin/main' into bolt/optimize-hex-for…
seonghobae Jun 28, 2026
c5683d4
Align hex format PR with main
seonghobae Jun 28, 2026
25fb53f
⚡ Bolt: 파일 업로드 콘텐츠 해시 생성 최적화
seonghobae Jun 28, 2026
e69ff8f
Remove stale governance files
seonghobae Jun 28, 2026
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9 changes: 3 additions & 6 deletions src/main/java/com/clearfolio/viewer/service/DefaultDocumentConversionService.java
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,7 @@
import java.io.InputStream;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.HexFormat;

import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;
Expand Down Expand Up @@ -121,12 +122,8 @@ private String contentHash(MultipartFile file) {
}

byte[] raw = digest.digest();
StringBuilder hex = new StringBuilder(raw.length * 2);
for (byte b : raw) {
hex.append(String.format("%02x", b));
}

return hex.toString();
// Bolt: 최적화 - 루프 내 String.format 대신 HexFormat 사용 (문자열 할당 및 시간 감소)
return HexFormat.of().formatHex(raw);
} catch (NoSuchAlgorithmException ex) {
throw new IllegalStateException("SHA-256 digest unavailable", ex);
} catch (IOException ex) {
Expand Down
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