message_store.py 文件源码

def get_data(self):
        """
        Retrieve the data objects sorted by increasing popularity, namely in increasing receive_count, then send_count
        and finally the last time they were sent by the current aDTN node.
        :return: data objects sorted by increasing popularity.
        """
        with self.lock:
            Stats = Query()
            stats = self.stats.search(Stats.deleted == False)
            res = sorted(stats, key=lambda x: (x['receive_count'], x['send_count'], x['last_sent']))[:10]
            now = int(time.time())
            objects = []
            for r in res:
                idx = r['idx']
                Objects = Query()
                obj = self.data.search(Objects.idx == idx)[0]['content']
                objects.append(obj)
                self.stats.update({'last_sent': now}, Objects.idx == idx)
                self.stats.update(increment('send_count'), Objects.idx == idx)
        return objects