umamaheswararao commented on a change in pull request #1988:
URL: https://github.com/apache/hadoop/pull/1988#discussion_r418742960
##########
File path:
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/viewfs/ViewFileSystem.java
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@@ -96,16 +96,49 @@ static AccessControlException readOnlyMountTable(final
String operation,
return readOnlyMountTable(operation, p.toString());
}
+ /**
+ * File system instance getter.
+ */
+ static class FsGetter {
+
+ /**
+ * Gets new file system instance of given uri.
+ */
+ public FileSystem getNewInstance(URI uri, Configuration conf)
+ throws IOException {
+ return FileSystem.newInstance(uri, conf);
+ }
+
+ /**
+ * Gets file system instance of given uri.
+ */
+ public FileSystem get(URI uri, Configuration conf) throws IOException {
+ return FileSystem.get(uri, conf);
+ }
+ }
+
+ /**
+ * Gets file system creator instance.
+ */
+ protected FsGetter fsGetter() {
Review comment:
Thanks @chliang71 for the review. We have overridden this method in
ViewFSOverloadScheme class. In ViewFSOverloadScheme, fsGetter gets its special
FsGetter anonymous subclass instance with its own implemented methods. Does
this answers your question?
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