Examples of io.netty.channel.ChannelPipeline.context()

io.netty.channel.ChannelPipeline.context()
Returns the context object of the specified {@link ChannelHandler} inthis pipeline. @return the context object of the specified handler.{@code null} if there's no such handler in this pipeline.

        verify(response);
        setActualSubprotocol(response.headers().get(HttpHeaders.Names.SEC_WEBSOCKET_PROTOCOL));
        setHandshakeComplete();


        ChannelPipeline p = channel.pipeline();
        ChannelHandlerContext ctx = p.context(HttpResponseDecoder.class);
        if (ctx == null) {
            ctx = p.context(HttpClientCodec.class);
            if (ctx == null) {
                throw new IllegalStateException("ChannelPipeline does not contain " +
                        "a HttpRequestEncoder or HttpClientCodec");

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        setHandshakeComplete();


        ChannelPipeline p = channel.pipeline();
        ChannelHandlerContext ctx = p.context(HttpResponseDecoder.class);
        if (ctx == null) {
            ctx = p.context(HttpClientCodec.class);
            if (ctx == null) {
                throw new IllegalStateException("ChannelPipeline does not contain " +
                        "a HttpRequestEncoder or HttpClientCodec");
            }
            p.replaceAndForward(ctx.name(), "ws-decoder", newWebsocketDecoder());

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                if (future.isSuccess()) {
                    ChannelPipeline p = future.channel().pipeline();
                    if (p.get(HttpObjectAggregator.class) != null) {
                        p.remove(HttpObjectAggregator.class);
                    }
                    ChannelHandlerContext ctx = p.context(HttpRequestDecoder.class);
                    if (ctx == null) {
                        // this means the user use a HttpServerCodec
                        ctx = p.context(HttpServerCodec.class);
                        if (ctx == null) {
                            promise.setFailure(

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                        p.remove(HttpObjectAggregator.class);
                    }
                    ChannelHandlerContext ctx = p.context(HttpRequestDecoder.class);
                    if (ctx == null) {
                        // this means the user use a HttpServerCodec
                        ctx = p.context(HttpServerCodec.class);
                        if (ctx == null) {
                            promise.setFailure(
                                    new IllegalStateException("No HttpDecoder and no HttpServerCodec in the pipeline"));
                            return;
                        }

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        channel.writeAndFlush(request).addListener(new ChannelFutureListener() {
            @Override
            public void operationComplete(ChannelFuture future) {
                if (future.isSuccess()) {
                    ChannelPipeline p = future.channel().pipeline();
                    ChannelHandlerContext ctx = p.context(HttpRequestEncoder.class);
                    if (ctx == null) {
                        ctx = p.context(HttpClientCodec.class);
                    }
                    if (ctx == null) {
                        promise.setFailure(new IllegalStateException("ChannelPipeline does not contain " +

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            public void operationComplete(ChannelFuture future) {
                if (future.isSuccess()) {
                    ChannelPipeline p = future.channel().pipeline();
                    ChannelHandlerContext ctx = p.context(HttpRequestEncoder.class);
                    if (ctx == null) {
                        ctx = p.context(HttpClientCodec.class);
                    }
                    if (ctx == null) {
                        promise.setFailure(new IllegalStateException("ChannelPipeline does not contain " +
                                "a HttpRequestEncoder or HttpClientCodec"));
                        return;

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        HttpContentDecompressor decompressor = p.get(HttpContentDecompressor.class);
        if (decompressor != null) {
            p.remove(decompressor);
        }


        ChannelHandlerContext ctx = p.context(HttpResponseDecoder.class);
        if (ctx == null) {
            ctx = p.context(HttpClientCodec.class);
            if (ctx == null) {
                throw new IllegalStateException("ChannelPipeline does not contain " +
                        "a HttpRequestEncoder or HttpClientCodec");

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            p.remove(decompressor);
        }


        ChannelHandlerContext ctx = p.context(HttpResponseDecoder.class);
        if (ctx == null) {
            ctx = p.context(HttpClientCodec.class);
            if (ctx == null) {
                throw new IllegalStateException("ChannelPipeline does not contain " +
                        "a HttpRequestEncoder or HttpClientCodec");
            }
            p.replace(ctx.name(), "ws-decoder", newWebsocketDecoder());

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        String name = ctx.name();


        Socks4CmdResponseDecoder decoder = new Socks4CmdResponseDecoder();
        p.addBefore(name, null, decoder);


        decoderName = p.context(decoder).name();
        encoderName = decoderName + ".encoder";


        p.addBefore(name, encoderName, Socks4MessageEncoder.INSTANCE);
    }

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        String name = ctx.name();


        Socks5InitResponseDecoder decoder = new Socks5InitResponseDecoder();
        p.addBefore(name, null, decoder);


        decoderName = p.context(decoder).name();
        encoderName = decoderName + ".encoder";


        p.addBefore(name, encoderName, Socks5MessageEncoder.INSTANCE);
    }

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