Examples with Topic io.libp2p.core.pubsub.Topic used on opensource projects

Example 1 with Topic

use of io.libp2p.core.pubsub.Topic in project teku by ConsenSys.

the class MockMessageApi method getOriginalMessage.

@NotNull
@Override
public PubsubMessage getOriginalMessage() {
    Message protoMessage = Message.newBuilder().addAllTopicIDs(getTopics().stream().map(Topic::getTopic).collect(Collectors.toList())).setData(ByteString.copyFrom(getData().nioBuffer())).build();
    PreparedGossipMessage preparedMessage = new PreparedGossipMessage() {

        @Override
        public Bytes getMessageId() {
            return Bytes.wrap(Hash.sha256(protoMessage.getData().toByteArray()));
        }

        @Override
        public DecodedMessageResult getDecodedMessage() {
            final Bytes decoded = Bytes.of(protoMessage.getData().toByteArray());
            return DecodedMessageResult.successful(decoded);
        }

        @Override
        public Bytes getOriginalMessage() {
            return Bytes.wrapByteBuf(data);
        }
    };
    return new PreparedPubsubMessage(protoMessage, preparedMessage);
}

Example 2 with Topic

use of io.libp2p.core.pubsub.Topic in project teku by ConsenSys.

the class LibP2PGossipNetwork method subscribe.

@Override
public TopicChannel subscribe(final String topic, final TopicHandler topicHandler) {
    LOG.trace("Subscribe to topic: {}", topic);
    topicHandlers.add(topic, topicHandler);
    final Topic libP2PTopic = new Topic(topic);
    final GossipHandler gossipHandler = new GossipHandler(metricsSystem, libP2PTopic, publisher, topicHandler);
    PubsubSubscription subscription = gossip.subscribe(gossipHandler, libP2PTopic);
    return new LibP2PTopicChannel(gossipHandler, subscription);
}