this.ourAs = Preconditions.checkNotNull(ourAs);
this.service = Preconditions.checkNotNull(service);
this.ribSupport = registry.getRIBSupportContext(tablesKey).getRibSupport();
this.ourAs = Preconditions.checkNotNull(ourAs);
this.service = Preconditions.checkNotNull(service);
this.ribSupport = registry.getRIBSupportContext(tablesKey).getRibSupport();