tree 6a5bdbb2b1c06cca3a59e94df5e75bb84ab88e4d
parent f9ec0832bcfd911773f1f479399f4ba3ea0a4c73
author Harold Huang <baymaxhuang@gmail.com> 1491210813 +0800
committer Yoonseon Han <yoonseon@onlab.us> 1491862190 +0000

ONOS-6164 Fix the add and remove command to the virtual network store

We fix the add and remove command to be more semantic:
1. When remove a virtual network element, all the other elements
that depend on it should also be removed.
2. Virtual link and virtual host should not be created until the virtual
ports they depend on are created.
3. Some bugs about NullPointerException are fixed.

Change-Id: I0346dfb54dbb9a388cd4a39637ee57601fecff02