Github user andrewor14 commented on a diff in the pull request: https://github.com/apache/spark/pull/5236#discussion_r28265905 --- Diff: network/common/src/main/java/org/apache/spark/network/util/JavaUtils.java --- @@ -121,4 +125,66 @@ private static boolean isSymlink(File file) throws IOException { } return !fileInCanonicalDir.getCanonicalFile().equals(fileInCanonicalDir.getAbsoluteFile()); } + + private static ImmutableMap<String, TimeUnit> timeSuffixes = + ImmutableMap.<String, TimeUnit>builder() + .put("us", TimeUnit.MICROSECONDS) + .put("ms", TimeUnit.MILLISECONDS) + .put("s", TimeUnit.SECONDS) + .put("m", TimeUnit.MINUTES) + .put("min", TimeUnit.MINUTES) + .put("h", TimeUnit.HOURS) + .put("d", TimeUnit.DAYS) + .build(); + + /** + * Convert a passed time string (e.g. 50s, 100ms, or 250us) to a time count for + * internal use. If no suffix is provided a direct conversion is attempted. + */ + private static long parseTimeString(String str, TimeUnit unit) { + String lower = str.toLowerCase().trim(); + + try { + String suffix; + long val; + Matcher m = Pattern.compile("(-?[0-9]+)([a-z]+)?").matcher(lower); --- End diff -- this doesn't handle whitespace does it? e.g. `1 min`
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