public void connect(ServerInfo info, final Callback<Boolean> callback, final boolean retry) {
Preconditions.checkNotNull(info, "info");
ServerConnectEvent event = new ServerConnectEvent(this, info);
if (bungee.getPluginManager().callEvent(event).isCancelled()) {
return;
}
final BungeeServerInfo target =
(BungeeServerInfo) event.getTarget(); // Update in case the event changed target
if (getServer() != null && Objects.equals(getServer().getInfo(), target)) {
sendMessage(bungee.getTranslation("already_connected"));
return;
}
if (pendingConnects.contains(target)) {
sendMessage(bungee.getTranslation("already_connecting"));
return;
}
pendingConnects.add(target);
ChannelInitializer initializer =
new ChannelInitializer() {
@Override
protected void initChannel(Channel ch) throws Exception {
PipelineUtils.BASE.initChannel(ch);
ch.pipeline()
.addAfter(
PipelineUtils.FRAME_DECODER,
PipelineUtils.PACKET_DECODER,
new MinecraftDecoder(
Protocol.HANDSHAKE, false, getPendingConnection().getVersion()));
ch.pipeline()
.addAfter(
PipelineUtils.FRAME_PREPENDER,
PipelineUtils.PACKET_ENCODER,
new MinecraftEncoder(
Protocol.HANDSHAKE, false, getPendingConnection().getVersion()));
ch.pipeline()
.get(HandlerBoss.class)
.setHandler(new ServerConnector(bungee, UserConnection.this, target));
}
};
ChannelFutureListener listener =
new ChannelFutureListener() {
@Override
public void operationComplete(ChannelFuture future) throws Exception {
if (callback != null) {
callback.done(future.isSuccess(), future.cause());
}
if (!future.isSuccess()) {
future.channel().close();
pendingConnects.remove(target);
ServerInfo def =
ProxyServer.getInstance()
.getServers()
.get(getPendingConnection().getListener().getFallbackServer());
if (retry && target != def && (getServer() == null || def != getServer().getInfo())) {
sendMessage(bungee.getTranslation("fallback_lobby"));
connect(def, null, false);
} else {
if (dimensionChange) {
disconnect(
bungee.getTranslation("fallback_kick") + future.cause().getClass().getName());
} else {
sendMessage(
bungee.getTranslation("fallback_kick") + future.cause().getClass().getName());
}
}
}
}
};
Bootstrap b =
new Bootstrap()
.channel(NioSocketChannel.class)
.group(ch.getHandle().eventLoop())
.handler(initializer)
.option(ChannelOption.CONNECT_TIMEOUT_MILLIS, 5000) // TODO: Configurable
.remoteAddress(target.getAddress());
// Windows is bugged, multi homed users will just have to live with random connecting IPs
if (getPendingConnection().getListener().isSetLocalAddress()
&& !PlatformDependent.isWindows()) {
b.localAddress(getPendingConnection().getListener().getHost().getHostString(), 0);
}
b.connect().addListener(listener);
}
@Override
public Future<PCEPSession> createClient(
@Nonnull final InetSocketAddress remoteAddress,
@Nonnull final long reconnectTime,
@Nonnull final PCEPSessionListenerFactory listenerFactory,
@Nonnull final PCEPSessionNegotiatorFactory negotiatorFactory,
@Nonnull final KeyMapping keys,
@Nullable final InetSocketAddress localAddress,
@Nonnull final BigInteger dbVersion) {
final Bootstrap b = new Bootstrap();
b.group(this.workerGroup);
b.localAddress(localAddress);
setChannelFactory(b, keys);
b.option(ChannelOption.SO_KEEPALIVE, true);
b.option(ChannelOption.MAX_MESSAGES_PER_READ, 1);
final ReconnectStrategyFactory reconnectStrategy =
reconnectTime == -1
? getNeverReconnectStrategyFactory()
: getTimedReconnectStrategyFactory(reconnectTime);
final PCCReconnectPromise promise =
new PCCReconnectPromise(remoteAddress, reconnectStrategy, b);
final ChannelInitializer<SocketChannel> channelInitializer =
new ChannelInitializer<SocketChannel>() {
@Override
protected void initChannel(final SocketChannel ch) throws Exception {
ch.pipeline().addLast(PCCDispatcherImpl.this.factory.getDecoders());
ch.pipeline()
.addLast(
"negotiator",
negotiatorFactory.getSessionNegotiator(
listenerFactory, ch, promise, new PCCPeerProposal(dbVersion)));
ch.pipeline().addLast(PCCDispatcherImpl.this.factory.getEncoders());
ch.pipeline()
.addLast(
new ChannelInboundHandlerAdapter() {
@Override
public void channelInactive(final ChannelHandlerContext ctx)
throws Exception {
if (promise.isCancelled()) {
return;
}
if (!promise.isInitialConnectFinished()) {
LOG.debug(
"Connection to {} was dropped during negotiation, reattempting",
remoteAddress);
return;
}
LOG.debug("Reconnecting after connection to {} was dropped", remoteAddress);
PCCDispatcherImpl.this.createClient(
remoteAddress,
reconnectTime,
listenerFactory,
negotiatorFactory,
keys,
localAddress,
dbVersion);
}
});
}
};
b.handler(channelInitializer);
promise.connect();
return promise;
}