Github user knusbaum commented on a diff in the pull request:
https://github.com/apache/storm/pull/845#discussion_r44997547
--- Diff: storm-core/src/clj/backtype/storm/daemon/supervisor.clj ---
@@ -732,25 +863,89 @@
(if (conf SUPERVISOR-RUN-WORKER-AS-USER)
(worker-launcher-and-wait conf (storm-conf TOPOLOGY-SUBMITTER-USER)
["code-dir" dir] :log-prefix (str "setup conf for " dir))))
+(defn setup-blob-permission [conf storm-conf path]
+ (if (conf SUPERVISOR-RUN-WORKER-AS-USER)
+ (worker-launcher-and-wait conf (storm-conf TOPOLOGY-SUBMITTER-USER)
["blob" path] :log-prefix (str "setup blob permissions for " path))))
+
+(defn setup-storm-code-dir [conf storm-conf dir]
+ (if (conf SUPERVISOR-RUN-WORKER-AS-USER)
+ (worker-launcher-and-wait conf (storm-conf TOPOLOGY-SUBMITTER-USER)
["code-dir" dir] :log-prefix (str "setup conf for " dir))))
+
+(defn download-blobs-for-topology!
+ "Download all blobs listed in the topology configuration for a given
topology."
+ [conf stormconf-path localizer tmproot]
+ (let [storm-conf (read-supervisor-storm-conf-given-path conf
stormconf-path)
+ blobstore-map (storm-conf TOPOLOGY-BLOBSTORE-MAP)
+ user (storm-conf TOPOLOGY-SUBMITTER-USER)
+ topo-name (storm-conf TOPOLOGY-NAME)
+ user-dir (.getLocalUserFileCacheDir localizer user)
+ localresources (blobstore-map-to-localresources blobstore-map)]
+ (when localresources
+ (when-not (.exists user-dir)
+ (FileUtils/forceMkdir user-dir)
+ (setup-blob-permission conf storm-conf (.toString user-dir)))
+ (try
+ (let [localized-resources (.getBlobs localizer localresources user
topo-name user-dir)]
+ (setup-blob-permission conf storm-conf (.toString user-dir))
+ (doseq [local-rsrc localized-resources]
+ (let [rsrc-file-path (File. (.getFilePath local-rsrc))
+ key-name (.getName rsrc-file-path)
+ blob-symlink-target-name (.getName (File.
(.getCurrentSymlinkPath local-rsrc)))
+ symlink-name (get-blob-localname (get blobstore-map
key-name) key-name)]
+ (create-symlink! tmproot (.getParent rsrc-file-path)
symlink-name
+ blob-symlink-target-name))))
+ (catch AuthorizationException authExp
+ (log-error authExp))
+ (catch KeyNotFoundException knf
+ (log-error knf))))))
+
+(defn get-blob-file-names
+ [blobstore-map]
+ (if blobstore-map
+ (for [[k, data] blobstore-map] (get-blob-localname data k))))
--- End diff --
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