[GitHub] [carbondata] QiangCai commented on a change in pull request #3826: [CARBONDATA-3889] Cleanup code for carbondata-streaming module

[GitBox <gi...@apache.org>]

QiangCai commented on a change in pull request #3826:
URL: https://github.com/apache/carbondata/pull/3826#discussion_r456252916



##########
File path: streaming/src/main/java/org/apache/carbondata/streaming/segment/StreamSegment.java
##########
@@ -400,12 +386,7 @@ public static void recoverFileIfRequired(
   public static CarbonFile[] listDataFiles(String segmentDir) {
     CarbonFile carbonDir = FileFactory.getCarbonFile(segmentDir);
     if (carbonDir.exists()) {
-      return carbonDir.listFiles(new CarbonFileFilter() {
-        @Override
-        public boolean accept(CarbonFile file) {
-          return CarbonTablePath.isCarbonDataFile(file.getName());
-        }
-      });
+      return carbonDir.listFiles(file -> CarbonTablePath.isCarbonDataFile(file.getName()));

Review comment:
       For carbon 2.0, the answer is yes, in my opinion.
   
   we already use new featrues of jdk8(lambda, stream API)




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