xintongsong commented on code in PR #21125:
URL: https://github.com/apache/flink/pull/21125#discussion_r1007846839
##########
flink-core/src/main/java/org/apache/flink/util/FileUtils.java:
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@@ -648,6 +648,29 @@ public static String stripFileExtension(String fileName) {
return fileName;
}
+ /**
+ * Get a target path(the path that replaced symbolic links with linked
path) if the original
+ * path contains symbolic path, return the original path otherwise.
+ *
+ * @param path the original path.
+ * @return the path that replaced symbolic links with real path.
+ */
+ public static java.nio.file.Path
getTargetPathIfContainsSymbolicPath(java.nio.file.Path path)
+ throws IOException {
+ java.nio.file.Path targetPath = path;
+ java.nio.file.Path suffixPath = Paths.get("");
+ while (path != null && path.getFileName() != null) {
+ if (Files.isSymbolicLink(path)) {
+ java.nio.file.Path linkedPath = path.toRealPath();
+ targetPath = Paths.get(linkedPath.toString(),
suffixPath.toString());
+ break;
Review Comment:
What happens if there're multiple symbolic links in the path?
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