Examples with Node io.nuls.network.model.Node used on opensource projects

Example 1 with Node

use of io.nuls.network.model.Node in project nuls by nuls-io.

the class DownloadThreadManager method checkRollback.

private boolean checkRollback(Block localBestBlock, int rollbackCount) throws NulsException {
    if (rollbackCount >= 20) {
        // resetNetwork("number of rollbackTx blocks greater than 10 during download");
        return false;
    }
    List<Node> nodes = newestInfos.getNodes();
    long localHeight = localBestBlock.getHeader().getHeight();
    NulsDigestData localBestHash = localBestBlock.getHeader().getHash();
    for (Node node : nodes) {
        Block block = DownloadUtils.getBlockByHash(localBestHash, node);
        if (block != null && localHeight == block.getHeader().getHeight()) {
            return true;
        }
    }
    if (newestInfos.getNodes().size() > 0) {
        consensusService.rollbackBlock(localBestBlock);
    } else {
        // resetNetwork("the number of available nodes is insufficient for rollbackTx blocks");
        return false;
    }
    localBestBlock = blockService.getBestBlock().getData();
    return checkRollback(localBestBlock, rollbackCount + 1);
}

Example 2 with Node

use of io.nuls.network.model.Node in project nuls by nuls-io.

the class DownloadProcessor method getNetworkNewestBlock.

public NetworkNewestBlockInfos getNetworkNewestBlock() {
    Collection<Node> nodeList = networkService.getAvailableNodes();
    Map<NulsDigestData, Integer> statisticsMaps = new HashMap<>();
    Map<NulsDigestData, List<Node>> nodeMaps = new HashMap<>();
    // System.out.println("--------------start download-------------------");
    for (Node node : nodeList) {
        // System.out.println(node.getId() + " : " + node.getBestBlockHeight() + " : " + node.getBestBlockHash());
        NulsDigestData hash = node.getBestBlockHash();
        Integer statistics = statisticsMaps.get(hash);
        if (statistics == null) {
            statisticsMaps.put(hash, 0);
        }
        statisticsMaps.put(hash, statisticsMaps.get(hash) + 1);
        List<Node> nodes = nodeMaps.get(hash);
        if (nodes == null) {
            nodes = new ArrayList<>();
            nodeMaps.put(hash, nodes);
        }
        nodes.add(node);
    }
    // max number
    int max = 0;
    long bestHeight = 0;
    NulsDigestData bestHash = null;
    List<Node> nodes = null;
    for (Map.Entry<NulsDigestData, Integer> entry : statisticsMaps.entrySet()) {
        int count = entry.getValue();
        NulsDigestData hash = entry.getKey();
        List<Node> tempNodes = nodeMaps.get(hash);
        long height = tempNodes.get(0).getBestBlockHeight();
        if (count > max || (count == max && bestHeight < height)) {
            max = count;
            bestHash = hash;
            bestHeight = height;
            nodes = tempNodes;
        }
    }
    if (nodes == null || nodes.size() == 0) {
        throw new NulsRuntimeException(NetworkErrorCode.NET_NODE_NOT_FOUND);
    }
    return new NetworkNewestBlockInfos(bestHeight, bestHash, nodes);
}

Example 3 with Node

use of io.nuls.network.model.Node in project nuls by nuls-io.

the class RequestThread method downloadRound.

private void downloadRound() {
    for (int i = nodeList.size() - 1; i >= 0; i--) {
        Node node = nodeList.get(i);
        if (!node.isHandShake()) {
            nodeList.remove(i);
            continue;
        }
        int size = count;
        if ((startHeight + size) > endHeight) {
            size = (int) (endHeight - startHeight + 1);
        }
        if (size <= 0) {
            break;
        }
        // Log.info("request:{}-{} ,from {}.", startHeight, size, node.getId());
        boolean result = request(node, startHeight, size);
        if (result) {
            startHeight += size;
        }
    }
}

Example 4 with Node

use of io.nuls.network.model.Node in project nuls by nuls-io.

the class ClientChannelHandler method channelRead0.

@Override
protected void channelRead0(ChannelHandlerContext ctx, Object msg) throws Exception {
    try {
        Attribute<Node> nodeAttribute = ctx.channel().attr(NodeAttributeKey.NODE_KEY);
        Node node = nodeAttribute.get();
        ByteBuf buf = (ByteBuf) msg;
        messageProcessor.processor(buf, node);
    } catch (Exception e) {
        Log.error("----------------exceptionCaught   111 ---------");
        throw e;
    }
}

Example 5 with Node

use of io.nuls.network.model.Node in project nuls by nuls-io.

the class ClientChannelHandler method channelActive.

@Override
public void channelActive(ChannelHandlerContext ctx) throws Exception {
    super.channelActive(ctx);
    Attribute<Node> nodeAttribute = ctx.channel().attr(NodeAttributeKey.NODE_KEY);
    Node node = nodeAttribute.get();
    if (node != null) {
        node.setChannel(ctx.channel());
    }
    if (node != null && node.getConnectedListener() != null) {
        node.getConnectedListener().action();
    }
}