Examples with GossipScoreParams io.libp2p.pubsub.gossip.GossipScoreParams used on opensource projects

Example 1 with GossipScoreParams

use of io.libp2p.pubsub.gossip.GossipScoreParams in project teku by ConsenSys.

the class LibP2PGossipNetworkBuilder method createGossip.

protected Gossip createGossip(GossipConfig gossipConfig, boolean gossipLogsEnabled, PreparedGossipMessageFactory defaultMessageFactory, GossipTopicFilter gossipTopicFilter, GossipTopicHandlers topicHandlers) {
    final GossipParams gossipParams = LibP2PParamsFactory.createGossipParams(gossipConfig);
    final GossipScoreParams scoreParams = LibP2PParamsFactory.createGossipScoreParams(gossipConfig.getScoringConfig());
    final TopicSubscriptionFilter subscriptionFilter = new MaxCountTopicSubscriptionFilter(MAX_SUBSCIPTIONS_PER_MESSAGE, MAX_SUBSCRIBED_TOPICS, gossipTopicFilter::isRelevantTopic);
    GossipRouter router = new GossipRouter(gossipParams, scoreParams, PubsubProtocol.Gossip_V_1_1, subscriptionFilter) {

        final SeenCache<Optional<ValidationResult>> seenCache = new TTLSeenCache<>(new FastIdSeenCache<>(msg -> Bytes.wrap(Hash.sha256(msg.getProtobufMessage().getData().toByteArray()))), gossipParams.getSeenTTL(), getCurTimeMillis());

        @NotNull
        @Override
        protected SeenCache<Optional<ValidationResult>> getSeenMessages() {
            return seenCache;
        }
    };
    router.setMessageFactory(msg -> {
        Preconditions.checkArgument(msg.getTopicIDsCount() == 1, "Unexpected number of topics for a single message: " + msg.getTopicIDsCount());
        String topic = msg.getTopicIDs(0);
        Bytes payload = Bytes.wrap(msg.getData().toByteArray());
        PreparedGossipMessage preparedMessage = topicHandlers.getHandlerForTopic(topic).map(handler -> handler.prepareMessage(payload)).orElse(defaultMessageFactory.create(topic, payload));
        return new PreparedPubsubMessage(msg, preparedMessage);
    });
    router.setMessageValidator(STRICT_FIELDS_VALIDATOR);
    if (gossipLogsEnabled) {
        if (debugGossipHandler != null) {
            throw new IllegalStateException("Adding more than 1 gossip debug handlers is not implemented yet");
        }
        debugGossipHandler = new LoggingHandler("wire.gossip", LogLevel.DEBUG);
    }
    PubsubApi pubsubApi = PubsubApiKt.createPubsubApi(router);
    return new Gossip(router, pubsubApi, debugGossipHandler);
}