tree 7af80299e36b1a5c4b0368b02d2ce28caaa1e58c
parent 9267251dd1907216e5db3f0d9f6450bbd2848ef1
author Yingdi Yu <yuyingdi@gmail.com> 1427142607 -0700
committer Yingdi Yu <yuyingdi@gmail.com> 1427231951 -0700

add logger

Change-Id: If41d6d94086ec9fffb954a52e1529ccfad7f42fe