small network code cleanup
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bd4b8d427a
commit
d6d934f1f3
2 changed files with 203 additions and 264 deletions
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@ -23,8 +23,7 @@ import io.netty.util.AttributeKey;
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import io.netty.util.concurrent.Future;
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import io.netty.util.concurrent.GenericFutureListener;
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public class NetConnection extends SimpleChannelInboundHandler<Packet>
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{
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public class NetConnection extends SimpleChannelInboundHandler<Packet> {
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private static final Pattern IP_REPLACER = Pattern.compile("([0-9]*)\\.([0-9]*)\\.[0-9]*\\.[0-9]*");
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public static final AttributeKey<PacketRegistry> ATTR_STATE = AttributeKey.<PacketRegistry>valueOf("protocol");
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@ -37,44 +36,36 @@ public class NetConnection extends SimpleChannelInboundHandler<Packet>
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private String exitReason;
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private boolean disconnected;
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public void channelActive(ChannelHandlerContext context) throws Exception
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{
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public void channelActive(ChannelHandlerContext context) throws Exception {
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super.channelActive(context);
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this.channel = context.channel();
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this.address = this.channel.remoteAddress();
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try
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{
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try {
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this.setConnectionState(PacketRegistry.HANDSHAKE);
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}
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catch (Throwable t)
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{
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catch(Throwable t) {
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Log.JNI.error(t, "Fehler beim Aufbauen der Verbindung für Handshake");
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}
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}
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public void setConnectionState(PacketRegistry newState)
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{
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public void setConnectionState(PacketRegistry newState) {
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this.channel.attr(ATTR_STATE).set(newState);
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this.channel.config().setAutoRead(true);
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// Log.debug("Automatisches Lesen eingeschaltet");
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}
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public void channelInactive(ChannelHandlerContext context) throws Exception
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{
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public void channelInactive(ChannelHandlerContext context) throws Exception {
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this.closeChannel("Ende der Datenübertragung");
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}
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public void exceptionCaught(ChannelHandlerContext context, Throwable throwable) throws Exception
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{
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public void exceptionCaught(ChannelHandlerContext context, Throwable throwable) throws Exception {
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String comp;
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if (throwable instanceof TimeoutException)
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{
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if(throwable instanceof TimeoutException) {
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comp = "Zeitüberschreitung";
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}
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else
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{
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else {
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comp = "Interner Fehler: " + throwable;
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if(!(throwable instanceof ClosedChannelException))
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Log.SYSTEM.error(throwable, "Fehler in der Verbindung mit %s", this.getCutAddress());
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@ -83,23 +74,18 @@ public class NetConnection extends SimpleChannelInboundHandler<Packet>
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this.closeChannel(comp);
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}
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protected void channelRead0(ChannelHandlerContext context, Packet packet) throws Exception
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{
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if (this.channel.isOpen())
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{
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try
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{
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protected void channelRead0(ChannelHandlerContext context, Packet packet) throws Exception {
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if(this.channel.isOpen()) {
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try {
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packet.processPacket(this.handler);
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}
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catch (ThreadQuickExitException e)
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{
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catch(ThreadQuickExitException e) {
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;
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}
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}
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}
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public void setNetHandler(NetHandler handler)
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{
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public void setNetHandler(NetHandler handler) {
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if(handler == null) {
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throw new NullPointerException("Handler ist Null");
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}
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@ -107,125 +93,99 @@ public class NetConnection extends SimpleChannelInboundHandler<Packet>
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this.handler = handler;
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}
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public void sendPacket(Packet packetIn)
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{
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if (this.isChannelOpen())
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{
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public void sendPacket(Packet packet) {
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if(this.isChannelOpen()) {
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this.flushOutboundQueue();
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this.dispatchPacket(packetIn, null);
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this.dispatchPacket(packet, null);
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}
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else
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{
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else {
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this.lock.writeLock().lock();
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try
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{
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this.queue.add(new NetConnection.InboundHandlerTuplePacketListener(packetIn, null));
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try {
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this.queue.add(new NetConnection.InboundHandlerTuplePacketListener(packet, null));
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}
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finally
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{
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finally {
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this.lock.writeLock().unlock();
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}
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}
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}
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public void sendPacket(Packet packetIn, GenericFutureListener <? extends Future <? super Void >> listener)
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{
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if (this.isChannelOpen())
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{
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public void sendPacket(Packet packet, GenericFutureListener<? extends Future<? super Void>> listener) {
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if(this.isChannelOpen()) {
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this.flushOutboundQueue();
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this.dispatchPacket(packetIn, new GenericFutureListener[] {listener});
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this.dispatchPacket(packet, new GenericFutureListener[] {listener});
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}
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else
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{
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else {
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this.lock.writeLock().lock();
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try
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{
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this.queue.add(new NetConnection.InboundHandlerTuplePacketListener(packetIn, listener));
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try {
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this.queue.add(new NetConnection.InboundHandlerTuplePacketListener(packet, listener));
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}
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finally
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{
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finally {
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this.lock.writeLock().unlock();
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}
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}
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}
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private void dispatchPacket(final Packet inPacket, final GenericFutureListener <? extends Future <? super Void >> [] futureListeners)
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{
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final PacketRegistry state = PacketRegistry.getType(inPacket);
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private void dispatchPacket(final Packet packet, final GenericFutureListener<? extends Future<? super Void>>[] listeners) {
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final PacketRegistry state = PacketRegistry.getType(packet);
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final PacketRegistry current = this.channel.attr(ATTR_STATE).get();
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if (current != state)
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{
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if(current != state) {
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// Log.debug("Automatisches Lesen ausgeschaltet");
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this.channel.config().setAutoRead(false);
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}
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if (this.channel.eventLoop().inEventLoop())
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{
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if (state != current)
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{
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if(this.channel.eventLoop().inEventLoop()) {
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if(state != current) {
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this.setConnectionState(state);
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}
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ChannelFuture channelfuture = this.channel.writeAndFlush(inPacket);
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ChannelFuture future = this.channel.writeAndFlush(packet);
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if (futureListeners != null)
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{
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channelfuture.addListeners(futureListeners);
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if(listeners != null) {
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future.addListeners(listeners);
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}
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channelfuture.addListener(ChannelFutureListener.FIRE_EXCEPTION_ON_FAILURE);
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future.addListener(ChannelFutureListener.FIRE_EXCEPTION_ON_FAILURE);
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}
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else
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{
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this.channel.eventLoop().execute(new Runnable()
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{
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public void run()
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{
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if (state != current)
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{
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else {
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this.channel.eventLoop().execute(new Runnable() {
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public void run() {
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if(state != current) {
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NetConnection.this.setConnectionState(state);
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}
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ChannelFuture channelfuture1 = NetConnection.this.channel.writeAndFlush(inPacket);
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ChannelFuture future = NetConnection.this.channel.writeAndFlush(packet);
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if (futureListeners != null)
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{
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channelfuture1.addListeners(futureListeners);
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if(listeners != null) {
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future.addListeners(listeners);
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}
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channelfuture1.addListener(ChannelFutureListener.FIRE_EXCEPTION_ON_FAILURE);
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future.addListener(ChannelFutureListener.FIRE_EXCEPTION_ON_FAILURE);
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}
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});
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}
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}
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private void flushOutboundQueue()
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{
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if (this.channel != null && this.channel.isOpen())
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{
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private void flushOutboundQueue() {
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if(this.channel != null && this.channel.isOpen()) {
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this.lock.readLock().lock();
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try
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{
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while (!this.queue.isEmpty())
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{
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try {
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while(!this.queue.isEmpty()) {
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NetConnection.InboundHandlerTuplePacketListener entry = this.queue.poll();
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if(entry != null) // NPE Fix
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this.dispatchPacket(entry.packet, entry.listeners);
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}
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}
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finally
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{
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finally {
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this.lock.readLock().unlock();
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}
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}
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}
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public void processReceivedPackets()
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{
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public void processReceivedPackets() {
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this.flushOutboundQueue();
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this.handler.update();
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if(this.channel != null)
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@ -236,78 +196,60 @@ public class NetConnection extends SimpleChannelInboundHandler<Packet>
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return this.address == null ? "?.?.*.*" : IP_REPLACER.matcher(this.address.toString()).replaceAll("$1.$2.*.*");
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}
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public void closeChannel(String message)
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{
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if (this.channel.isOpen())
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{
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public void closeChannel(String message) {
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if(this.channel.isOpen()) {
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this.channel.close().awaitUninterruptibly();
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this.exitReason = message;
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}
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}
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public boolean isChannelOpen()
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{
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public boolean isChannelOpen() {
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return this.channel != null && this.channel.isOpen();
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}
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public boolean hasNoChannel()
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{
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public boolean hasNoChannel() {
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return this.channel == null;
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}
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public void disableAutoRead()
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{
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public void disableAutoRead() {
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this.channel.config().setAutoRead(false);
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}
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public void setCompressionTreshold(int treshold)
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{
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if (treshold >= 0)
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{
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if (this.channel.pipeline().get("decompress") instanceof CompressionDecoder)
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{
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public void setCompressionTreshold(int treshold) {
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if(treshold >= 0) {
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if(this.channel.pipeline().get("decompress") instanceof CompressionDecoder) {
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((CompressionDecoder)this.channel.pipeline().get("decompress")).setTreshold(treshold);
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}
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else
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{
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else {
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this.channel.pipeline().addBefore("decoder", "decompress", new CompressionDecoder(treshold));
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}
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if (this.channel.pipeline().get("compress") instanceof CompressionEncoder)
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{
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if(this.channel.pipeline().get("compress") instanceof CompressionEncoder) {
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((CompressionEncoder)this.channel.pipeline().get("compress")).setTreshold(treshold);
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}
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else
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{
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else {
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this.channel.pipeline().addBefore("encoder", "compress", new CompressionEncoder(treshold));
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}
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}
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else
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{
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if (this.channel.pipeline().get("decompress") instanceof CompressionDecoder)
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{
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else {
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if(this.channel.pipeline().get("decompress") instanceof CompressionDecoder) {
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this.channel.pipeline().remove("decompress");
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}
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if (this.channel.pipeline().get("compress") instanceof CompressionEncoder)
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{
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if(this.channel.pipeline().get("compress") instanceof CompressionEncoder) {
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this.channel.pipeline().remove("compress");
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}
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}
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}
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public void checkDisconnected()
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{
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if (this.channel != null && !this.channel.isOpen())
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{
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if (!this.disconnected)
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{
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public void checkDisconnected() {
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if(this.channel != null && !this.channel.isOpen()) {
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if(!this.disconnected) {
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this.disconnected = true;
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if(this.handler != null)
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this.handler.onDisconnect(this.exitReason != null ? this.exitReason : "Verbindung getrennt");
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}
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else
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{
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else {
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Log.JNI.warn("handleDisconnection() zweifach aufgerufen");
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}
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}
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@ -318,13 +260,11 @@ public class NetConnection extends SimpleChannelInboundHandler<Packet>
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this.channel.pipeline().addBefore("prepender", "encrypt", new EncryptionEncoder(EncryptUtil.createCipher(Cipher.ENCRYPT_MODE, key)));
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}
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private static class InboundHandlerTuplePacketListener
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{
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private static class InboundHandlerTuplePacketListener {
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private final Packet packet;
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private final GenericFutureListener<? extends Future<? super Void>>[] listeners;
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public InboundHandlerTuplePacketListener(Packet packet, GenericFutureListener <? extends Future <? super Void >> listener)
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{
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public InboundHandlerTuplePacketListener(Packet packet, GenericFutureListener<? extends Future<? super Void>> listener) {
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this.packet = packet;
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this.listeners = listener == null ? null : new GenericFutureListener[] {listener};
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}
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@ -95,8 +95,7 @@ import common.packet.SPacketTrades;
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import common.packet.SPacketUpdateHealth;
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import common.packet.SPacketWorld;
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public enum PacketRegistry
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{
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public enum PacketRegistry {
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HANDSHAKE {{
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this.client(HPacketHandshake.class);
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}},
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