Pull request #31: DEC-20707 fix: s3直接通过判断名称 + "/"是否存在，来判断是否为文件夹

Merge in PG/plugin-repository-s3 from ~LIDONGY/plugin-repository-s3:release/11.0 to release/11.0

* commit '0e76c422b66e0c7fbc6cc59c1a3f91fed4b5e2e2':
  DEC-20707 fix: s3直接通过判断名称 + "/"是否存在，来判断是否为文件夹

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

@@ -249,20 +249,7 @@ public class S3ResourceRepository extends BaseResourceRepository {
 
     @Override
     public boolean isDirectory(String path) {
-
-        if (path.endsWith(DELIMITER) && exist(path)) {
-            return true;
-        }
-        ObjectListing listing = s3.listObjects(bucket, path);
-        if (listing.getObjectSummaries().isEmpty()) {
-            return false;
-        }
-        if (listing.getObjectSummaries().size() > 1) {
-            return true;
-        } else {
-            S3ObjectSummary summary = listing.getObjectSummaries().get(0);
-            return !StringKit.equals(listing.getPrefix(), summary.getKey());
-        }
+        return exist(path.endsWith(DELIMITER) ? path : path + DELIMITER);
     }
 
     @Override