Github user sunjincheng121 commented on a diff in the pull request:
https://github.com/apache/flink/pull/3928#discussion_r117146767
--- Diff:
flink-runtime/src/main/java/org/apache/flink/runtime/security/SecurityUtils.java
---
@@ -230,10 +230,15 @@ private void validate() {
}
private static List<String> parseList(String value) {
- if(value == null) {
+ if(value == null || value.isEmpty()) {
return Collections.emptyList();
}
- return Arrays.asList(value.split(","));
+
+ return Arrays.asList(value
+ .replaceAll("\\s*,\\s*", ",") // remove
whitespaces surrounding commas
+ .replaceAll(",,", ",") // remove empty entries
--- End diff --
Hi, @tzulitai `.replaceAll("\\s*,\\s*", ",").replaceAll(",,", ",") ` can
not deal with `" a, b,,, c d, e "`
I think we can using the expression as follows:
`str.trim().replaceAll("(\\s*,+\\s*)+", ",")` OR
`str.replace("/^\\s+|\\s+$/g","").replaceAll("(\\s*,\\s*)+", ",");`
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