Github user andrewor14 commented on a diff in the pull request:
https://github.com/apache/spark/pull/288#discussion_r11222616
--- Diff: core/src/main/scala/org/apache/spark/util/Utils.scala ---
@@ -537,6 +537,21 @@ private[spark] object Utils extends Logging {
}
/**
+ * Finds all the files in a directory whose last modified time is older
than cutoff seconds.
+ * @param dir must be the path to a directory, or
IllegalArgumentException is thrown
+ * @param cutoff measured in seconds. Files older than this are returned.
+ */
+ def findOldFiles(dir: File, cutoff: Long): Seq[File] = {
+ val currentTimeMillis = System.currentTimeMillis
+ if (dir.isDirectory) {
+ val files = listFilesSafely(dir)
+ files.filter { file => file.lastModified < (currentTimeMillis -
cutoff * 1000) }
+ } else {
+ throw new IllegalArgumentException(dir + " is not a directory!")
+ }
+ }
--- End diff --
Is there a reason for not making this `deleteOldFiles` directly? I don't
see another use case for getting old files other than deleting them. Is this
because we need it for testing?
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