navinko commented on code in PR #3711:
URL: https://github.com/apache/ozone/pull/3711#discussion_r971855293
##########
hadoop-ozone/ozonefs-common/src/main/java/org/apache/hadoop/fs/ozone/BasicRootedOzoneFileSystem.java:
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@@ -966,6 +966,135 @@ public RemoteIterator<LocatedFileStatus>
listLocatedStatus(Path f)
return super.listLocatedStatus(f);
}
+ @Override
+ public RemoteIterator<FileStatus> listStatusIterator(Path f)
+ throws IOException {
+ return new OzoneFileStatusIterator<>(f);
+ }
+
+ /**
+ * A private class implementation for iterating list of file status.
+ *
+ * @param <T> the type of the file status.
+ */
+ private final class OzoneFileStatusIterator<T extends FileStatus>
+ implements RemoteIterator<T> {
+ private List<FileStatus> thisListing;
+ private int i;
+ private Path p;
+ private T curStat = null;
+ private String startPath = "";
+
+ /**
+ * Constructor to initialize OzoneFileStatusIterator.
+ * Get the first batch of entry for iteration.
+ *
+ * @param p path to file/directory.
+ * @throws IOException
+ */
+ private OzoneFileStatusIterator(Path p) throws IOException {
+ this.p = p;
+ // fetch the first batch of entries in the directory
+ thisListing = listFileStatus(p, startPath);
+ if (thisListing != null && !thisListing.isEmpty()) {
+ startPath = pathToKey(
+ thisListing.get(thisListing.size() - 1).getPath());
+ LOG.info("Got {} file status, next start path {}",
+ thisListing.size(), startPath);
+ }
+ statistics.incrementReadOps(1);
Review Comment:
Thanks @ChenSammi for pointing out ,corrected it.
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