private <In, Out> Channel listen(int port, NetworkEndpointFactory<In, Out> endpointFactory) {
ServerBootstrap bootstrap = new ServerBootstrap(channelFactory);
bootstrap.setPipelineFactory(
() ->
Channels.pipeline(
new ObjectEncoder(),
new ObjectDecoder(ClassResolvers.softCachingResolver(getClass().getClassLoader())),
new LoggingHandler(NettyNetworkServer.class, logLevel),
new NettyNetworkEndpointAdapter<>(endpointFactory.createEndpoint()),
new AddToChannelGroupHandler(allChannels)));
bootstrap.setOption("child.tcpNoDelay", true);
bootstrap.setOption("child.keepAlive", true);
Channel channel = bootstrap.bind(new InetSocketAddress(port));
allChannels.add(channel);
return channel;
}
