Examples of io.netty.channel.ChannelInitializer

io.netty.channel.ChannelInitializer

A special {@link ChannelStateHandler} which offers an easy way to initialize a {@link Channel} once it wasregistered to its {@link EventLoop}. Implementations are most often used in the context of {@link Bootstrap#handler(ChannelHandler)} ,{@link ServerBootstrap#handler(ChannelHandler)} and {@link ServerBootstrap#childHandler(ChannelHandler)} tosetup the {@link ChannelPipeline} of a {@link Channel}.

 public class MyChannelInitializer extends  {@link ChannelInitializer} {public void initChannel( {@link Channel} channel) {channel.pipeline().addLast("myHandler", new MyHandler()); } } {@link ServerBootstrap} bootstrap = ...;... bootstrap.childHandler(new MyChannelInitializer()); ...

Be aware that this class is marked as {@link Sharable} and so the implementation must be safe to be re-used. @param < C> A sub-type of {@link Channel}


    try {
      final NioEventLoopGroup bossGroup = new NioEventLoopGroup();
      final NioEventLoopGroup workerGroup = new NioEventLoopGroup();
      final ChannelFuture channelFuture = bootstrap.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
              .childHandler(new ChannelInitializer() {
                @Override
                protected void initChannel(Channel ch) throws Exception {
                  if (useSecureWebSocket) {
                    final SslHandler sslHandler = SslHandlerFactory.buildSslHandler(esc);
                    ch.pipeline().addLast("ssl", sslHandler);


    try {
      final NioEventLoopGroup bossGroup = new NioEventLoopGroup();
      final NioEventLoopGroup workerGroup = new NioEventLoopGroup();
      final ChannelFuture channelFuture = bootstrap.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
              .childHandler(new ChannelInitializer() {
                @Override
                protected void initChannel(Channel ch) throws Exception {
                  ch.pipeline().addLast("codec-http", new HttpServerCodec());
                  ch.pipeline().addLast("aggregator", new HttpObjectAggregator(65536));
                  ch.pipeline().addLast("handler", webSocketHandler);

            return;
        }


        pendingConnects.add( target );


        ChannelInitializer initializer = new ChannelInitializer()
        {
            @Override
            protected void initChannel(Channel ch) throws Exception
            {
                PipelineUtils.BASE.initChannel( ch );

Related Classes of io.netty.channel.ChannelInitializer

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