NetDiscover.java 文件源码

Group(InetSocketAddress group_socket) throws IOException {
    this.group_socket = group_socket;

    if (group_socket.getAddress() instanceof Inet4Address) {
        pf = StandardProtocolFamily.INET;
    } else {
        pf = StandardProtocolFamily.INET6;
    }

    InetAddress first_addrnetwork_interface = network_interface.getInterfaceAddresses().stream().map(inet -> {
        return inet.getAddress();
    }).filter(inet_addr -> {
        return pf == StandardProtocolFamily.INET & inet_addr instanceof Inet4Address | pf == StandardProtocolFamily.INET6 & inet_addr instanceof Inet6Address;
    }).findFirst().orElseThrow(() -> new IOException("Can't found IPv4/6 addr in a IPv6/4 link"));

    bind_to = new InetSocketAddress(group_socket.getPort());
    if (SystemUtils.IS_OS_WINDOWS) {
        bind_to = new InetSocketAddress(first_addrnetwork_interface, group_socket.getPort());
    }
}