JohnZZGithub commented on a change in pull request #2185:
URL: https://github.com/apache/hadoop/pull/2185#discussion_r485346954
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File path:
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/viewfs/Constants.java
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@@ -86,12 +86,21 @@
*/
String CONFIG_VIEWFS_LINK_MERGE_SLASH = "linkMergeSlash";
+ /**
+ * Config variable for specifying a regex link which uses regular expressions
+ * as source and target could use group captured in src.
+ * E.g. (^/(?<firstDir>\\w+), /prefix-${firstDir}) =>
+ * (/path1/file1 => /prefix-path1/file1)
+ */
+ String CONFIG_VIEWFS_LINK_REGEX = "linkRegex";
+
FsPermission PERMISSION_555 = new FsPermission((short) 0555);
String CONFIG_VIEWFS_RENAME_STRATEGY = "fs.viewfs.rename.strategy";
/**
* Enable ViewFileSystem to cache all children filesystems in inner cache.
Review comment:
Nice catch.
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