monthonk commented on code in PR #4212:
URL: https://github.com/apache/hadoop/pull/4212#discussion_r858489694
##########
hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/ITestS3AUnbuffer.java:
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@@ -192,6 +197,12 @@ private boolean isObjectStreamOpen(FSDataInputStream
inputStream) {
return ((S3AInputStream)
inputStream.getWrappedStream()).isObjectStreamOpen();
}
+ private void skipIfCannotUnbuffer(InputStream inputStream) {
Review Comment:
At this point we still don't know what kind of inputStream it is, the method
`hasCapability` only visible after we cast it to S3AInputStream or
S3PrefetchingInputStream
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