[HADOOP-11709] Time.NANOSECONDS_PER_MILLISECOND - use class-level final constant instead of method variable

• Type: Improvement
• Status: Resolved
• Priority: Trivial
• Resolution: Fixed
• Fix Version/s: 2.8.0, 3.0.0-alpha1
• Labels: beginner newbie
• Target Version/s: 2.8.0
• Hadoop Flags: Reviewed
• Assignee: Ajith S
• Reporter: Ajith S
• Created: 12/Mar/15 11:55
• Updated: 30/Aug/16 01:30
• Resolved: 20/Mar/15 15:57

Description

NANOSECONDS_PER_MILLISECOND constant can be moved to class level instead of creating it in each method call.

org.apache.hadoop.util.Time.java
 public static long monotonicNow() {
    final long NANOSECONDS_PER_MILLISECOND = 1000000;

    return System.nanoTime() / NANOSECONDS_PER_MILLISECOND;
  }