REPORT-102146 fix: isDirectory方法某些场景判断不正确

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

@@ -399,19 +399,16 @@ public class S3ResourceRepository extends BaseResourceRepository {
 
     @Override
     public boolean isDirectory(String path) {
-
+        if (path.endsWith(DELIMITER)) {
-        if (path.endsWith(DELIMITER) && exist(path)) {
+            return exist(path);
-            return true;
+        } else {
-        }
             ObjectListing listing = s3.listObjects(bucket, path);
-        if (listing.getObjectSummaries().isEmpty()) {
+            List<S3ObjectSummary> objectSummaries = listing.getObjectSummaries();
+            if (objectSummaries.isEmpty()) {
                 return false;
             }
-        if (listing.getObjectSummaries().size() > 1) {
+            String dirFormat = path + DELIMITER;
-            return true;
+            return objectSummaries.stream().anyMatch(s3ObjectSummary -> StringUtils.equals(s3ObjectSummary.getKey(), dirFormat));
-        } else {
-            S3ObjectSummary summary = listing.getObjectSummaries().get(0);
-            return !StringKit.equals(listing.getPrefix(), summary.getKey());
         }
     }