protected override void DoReceive()
{
// get relation info
var reldata = AccountRelationDataStore.Get(_authInfo.Id);
var beforeFollowing = new AVLTree<long>(reldata.Following);
var beforeFollowers = new AVLTree<long>(reldata.Followers);
var beforeBlockings = new AVLTree<long>(reldata.Blockings);
// get followings / followers
Observable.Merge(
_authInfo.GetFriendsIdsAll(_authInfo.Id)
.Do(id => beforeFollowing.Remove(id))
.Do(reldata.AddFollowing),
_authInfo.GetFollowerIdsAll(_authInfo.Id)
.Do(id => beforeFollowers.Remove(id))
.Do(reldata.AddFollower),
_authInfo.GetBlockingsIdsAll()
.Do(id => beforeBlockings.Remove(id))
.Do(reldata.AddBlocking))
.Subscribe(_ => { },
ex => BackstageModel.RegisterEvent(
new OperationFailedEvent("relation receive error: " +
_authInfo.UnreliableScreenName + " - " +
ex.Message)),
() =>
{
// cleanup remains
beforeFollowing.ForEach(reldata.RemoveFollowing);
beforeFollowers.ForEach(reldata.RemoveFollower);
beforeBlockings.ForEach(reldata.RemoveBlocking);
});
}