대용량 다운로드 수정

src/main/java/com/kamco/cd/kamcoback/common/download/DownloadExecutor.java

@@ -1,48 +0,0 @@
-package com.kamco.cd.kamcoback.common.download;
-
-import com.kamco.cd.kamcoback.common.download.dto.DownloadSpec;
-import com.kamco.cd.kamcoback.common.utils.UserUtil;
-import java.io.IOException;
-import java.io.InputStream;
-import java.nio.file.Files;
-import lombok.RequiredArgsConstructor;
-import org.springframework.http.HttpHeaders;
-import org.springframework.http.MediaType;
-import org.springframework.http.ResponseEntity;
-import org.springframework.stereotype.Service;
-import org.springframework.web.servlet.mvc.method.annotation.StreamingResponseBody;
-
-@Service
-@RequiredArgsConstructor
-public class DownloadExecutor {
-
-  private final UserUtil userUtil;
-
-  public ResponseEntity<StreamingResponseBody> stream(DownloadSpec spec) throws IOException {
-
-    if (!Files.isReadable(spec.filePath())) {
-      return ResponseEntity.notFound().build();
-    }
-
-    StreamingResponseBody body =
-        os -> {
-          try (InputStream in = Files.newInputStream(spec.filePath())) {
-            in.transferTo(os);
-            os.flush();
-          } catch (Exception e) {
-            // 고용량은 중간 끊김 흔하니까 throw 금지
-          }
-        };
-
-    String fileName =
-        spec.downloadName() != null
-            ? spec.downloadName()
-            : spec.filePath().getFileName().toString();
-
-    return ResponseEntity.ok()
-        .contentType(
-            spec.contentType() != null ? spec.contentType() : MediaType.APPLICATION_OCTET_STREAM)
-        .header(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename=\"" + fileName + "\"")
-        .body(body);
-  }
-}

src/main/java/com/kamco/cd/kamcoback/common/download/dto/DownloadSpec.java

@@ -1,12 +0,0 @@
-package com.kamco.cd.kamcoback.common.download.dto;
-
-import java.nio.file.Path;
-import java.util.UUID;
-import org.springframework.http.MediaType;
-
-public record DownloadSpec(
-    UUID uuid, // 다운로드 식별(로그/정책용)
-    Path filePath, // 실제 파일 경로
-    String downloadName, // 사용자에게 보일 파일명
-    MediaType contentType // 보통 OCTET_STREAM
-    ) {}