Github user d2r commented on a diff in the pull request:
https://github.com/apache/storm/pull/845#discussion_r45133934
--- Diff: storm-core/src/clj/backtype/storm/daemon/supervisor.clj ---
@@ -454,10 +455,82 @@
(shutdown-worker supervisor id))
))
+(defn get-blob-localname
+ "Given the blob information either gets the localname field if it exists,
+ else routines the default value passed in."
+ [blob-info defaultValue]
+ (if-let [val (if blob-info (get blob-info "localname") nil)] val
defaultValue))
--- End diff --
```Clojure
(or (get blob-info "localname") defaultValue)
```
The `get` returns `nil` if `blob-info` is `nil`.
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