tree ff543635fb108971f9a1fb69814ac9f6171dbae0
parent 5a05606af89a0c6b6b552ef6437e059673778269
author Naoki Shiota <n-shiota@ay.jp.nec.com> 1463190801 -0700
committer Yuta HIGUCHI <y-higuchi@onlab.us> 1463443257 +0000

bug fixes and cosmetic changes about OpticalPathProvisioner:
- removeSink() at deactivate
- added log messages
- wrapped null return value with Optional

Change-Id: Ic5361df3cf82f99af315b2551d33bb84aed241ed