tree 3149698ce81fcce727acbc244eb74f64cc22e939
parent bb99f8070da3b9a65c18e7aa0e04f64b667be28c
author Yuta HIGUCHI <y-higuchi@ak.jp.nec.com> 1514511888 -0800
committer Yuta HIGUCHI <y-higuchi@opennetworking.org> 1526408029 +0000

Some optimization around file writes

- Eliminate code clone
- Delete file only if file exists
- Remove unnecessary FileWriter creation
- Eliminate empty file creation step
  following append call will create one when something is written

Change-Id: Ic911dfcc2109db848ab1a0f269963191b969c8c6