REPORT-110235 fix: 新增是否保留Metadata的配置

plugin.xml

@@ -11,7 +11,7 @@
     <vendor>richie</vendor>
     <description><![CDATA[使用支持S3协议的云存储文件系统作为文件服务器。]]></description>
     <change-notes><![CDATA[
-        [2023-11-21]小文件不使用分片上传。 <br/>
+        [2023-11-21]小文件不使用分片上传, 新增preserveMetadata后台配置。 <br/>
         [2023-08-08]分片上传逻辑优化，模板保存问题修复。 <br/>
         [2023-07-24]支持大文件分片上传。 <br/>
         [2023-06-30]修复默认配置获取错误的问题，过滤有问题的路径。 <br/>

src/main/java/com/fanruan/fs/s3/repository/core/S3Config.java

@@ -41,6 +41,9 @@ public class S3Config extends CommonRepoConfig {
     @Identifier("maxConnections")
     private Conf<Integer> maxConnections = HolderKit.simple(200);
 
+    @Identifier("preserveMetadata")
+    private Conf<Boolean> preserveMetadata = HolderKit.simple(true);
+
     @GetConfig("endPoint")
     public String getEndPoint() {
         return endPoint.get();
@@ -111,6 +114,16 @@ public class S3Config extends CommonRepoConfig {
         this.maxConnections.set(maxConnections);
     }
 
+    @GetConfig("preserveMetadata")
+    public boolean isPreserveMetadata() {
+        return preserveMetadata.get();
+    }
+
+    @SetConfig("preserveMetadata")
+    public void setPreserveMetadata(boolean preserveMetadata) {
+        this.preserveMetadata.set(preserveMetadata);
+    }
+
     @Override
     public void update(String key) {
         super.update(key);
@@ -123,6 +136,7 @@ public class S3Config extends CommonRepoConfig {
             this.setEnablePathStyleAccess(newConfig.isEnablePathStyleAccess());
             this.setSignerOverride(newConfig.getSignerOverride());
             this.setMaxConnections(newConfig.getMaxConnections());
+            this.setPreserveMetadata(newConfig.isPreserveMetadata());
         }
     }
 
@@ -136,6 +150,7 @@ public class S3Config extends CommonRepoConfig {
         cloned.enablePathStyleAccess = (Conf<Boolean>) enablePathStyleAccess.clone();
         cloned.signerOverride = (Conf<String>) signerOverride.clone();
         cloned.maxConnections = (Conf<Integer>) maxConnections.clone();
+        cloned.preserveMetadata = (Conf<Boolean>) preserveMetadata.clone();
         return cloned;
     }
 }

src/main/java/com/fanruan/fs/s3/repository/core/S3ResourceRepository.java

@@ -158,19 +158,21 @@ public class S3ResourceRepository extends BaseResourceRepository {
         if (length > MULTIPART_UPLOAD_LIMIT) {
             multipartUpload(path, new ByteArrayInputStream(data));
         } else {
-            ObjectMetadata metadata;
-            try {
-                metadata = s3.getObjectMetadata(bucket, path);
-            } catch (Exception e) {
+            ObjectMetadata metadata = null;
+            if (preserveMetadata) {
+                try {
+                    metadata = s3.getObjectMetadata(bucket, path);
+                } catch (Exception ignore) {
+                }
+            }
+            if (metadata == null) {
                 metadata = new ObjectMetadata();
                 String mimeType = URLConnection.guessContentTypeFromName(path);
                 if (mimeType != null) {
                     metadata.setContentType(mimeType);
                 }
             }
-            if (metadata != null) {
-                metadata.setContentLength(length);
-            }
+            metadata.setContentLength(length);
             s3.putObject(bucket, path, new ByteArrayInputStream(data), metadata);
         }
     }