Method time

solr/solrj/src/java/org/apache/solr/common/util/Utils.java:763–765

(TimeSource timeSource, TimeUnit unit)

  }

  public static long time(TimeSource timeSource, TimeUnit unit) {
    return unit.convert(timeSource.getTimeNs(), TimeUnit.NANOSECONDS);
  }

  public static long timeElapsed(TimeSource timeSource, long start, TimeUnit unit) {
    return unit.convert(timeSource.getTimeNs() - NANOSECONDS.convert(start, unit), NANOSECONDS);