MongoDB.Web.Providers.MongoDBSessionStateProvider.GetSessionStateStoreData C# (CSharp) Method

        private SessionStateStoreData GetSessionStateStoreData(bool exclusive, HttpContext context, string id, out bool locked, out TimeSpan lockAge, out object lockId, out SessionStateActions actions)
        {
            actions = SessionStateActions.None;
            lockAge = TimeSpan.Zero;
            locked = false;
            lockId = null;

            var query = Query.And(Query.EQ("applicationVirtualPath", HostingEnvironment.ApplicationVirtualPath), Query.EQ("id", id));
            var bsonDocument = this.mongoCollection.FindOneAs<BsonDocument>(query);

            if (bsonDocument == null)
            {
                locked = false;
            }
            else if (bsonDocument["expires"].AsDateTime <= DateTime.Now)
            {
                locked = false;
                this.mongoCollection.Remove(Query.And(Query.EQ("applicationVirtualPath", HostingEnvironment.ApplicationVirtualPath), Query.EQ("id", id)));
            }
            else if (bsonDocument["locked"].AsBoolean == true)
            {
                lockAge = DateTime.Now.Subtract(bsonDocument["lockDate"].AsDateTime);
                locked = true;
                lockId = bsonDocument["lockId"].AsInt32;
            }
            else
            {
                locked = false;
                lockId = bsonDocument["lockId"].AsInt32;
                actions = (SessionStateActions)bsonDocument["sessionStateActions"].AsInt32;
            }

            if (exclusive)
            {
                lockId = (int)lockId + 1;
                actions = SessionStateActions.None;

                var update = Update.Set("lockDate", DateTime.Now).Set("lockId", (int)lockId).Set("locked", true).Set("sessionStateActions", SessionStateActions.None);
                this.mongoCollection.Update(query, update);
            }

            if (actions == SessionStateActions.InitializeItem)
            {
                return CreateNewStoreData(context, sessionStateSection.Timeout.Minutes);
            }

            using (var memoryStream = new MemoryStream(bsonDocument["sessionStateItems"].AsByteArray))
            {
                var sessionStateItems = new SessionStateItemCollection();

                if (memoryStream.Length > 0)
                {
                    var binaryReader = new BinaryReader(memoryStream);
                    sessionStateItems = SessionStateItemCollection.Deserialize(binaryReader);
                }

                return new SessionStateStoreData(sessionStateItems, SessionStateUtility.GetSessionStaticObjects(context), bsonDocument["timeout"].AsInt32);
            }
        }