Bootstrap.java 文件源码

public boolean bootstrap(HostAndPort seed, 
                         Node localNode) throws SyncException {
    this.localNode = localNode;
    succeeded = false;
    SocketAddress sa =
            new InetSocketAddress(seed.getHostText(), seed.getPort());
    ChannelFuture future = bootstrap.connect(sa);
    future.awaitUninterruptibly();
    if (!future.isSuccess()) {
        logger.debug("Could not connect to " + seed, future.getCause());
        return false;
    }
    Channel channel = future.getChannel();
    logger.debug("[{}] Connected to {}", 
                 localNode != null ? localNode.getNodeId() : null,
                 seed);

    try {
        channel.getCloseFuture().await();
    } catch (InterruptedException e) {
        logger.debug("Interrupted while waiting for bootstrap");
        return succeeded;
    }
    return succeeded;
}