Example usage for io.netty.channel ChannelPipeline addBefore

Introduction

In this page you can find the example usage for io.netty.channel ChannelPipeline addBefore.

Prototype

ChannelPipeline addBefore(String baseName, String name, ChannelHandler handler);

Source Link

Document

Inserts a ChannelHandler before an existing handler of this pipeline.

Usage

From source file:org.asynchttpclient.providers.netty4.NettyAsyncProviderPipelineTest.java

License:Open Source License

@Test(groups = { "standalone", "netty_provider" })
public void asyncPipelineTest() throws Exception {

    NettyAsyncHttpProviderConfig nettyConfig = new NettyAsyncHttpProviderConfig();
    nettyConfig.setHttpAdditionalPipelineInitializer(new AdditionalPipelineInitializer() {
        public void initPipeline(ChannelPipeline pipeline) throws Exception {
            pipeline.addBefore("inflater", "copyEncodingHeader", new CopyEncodingHandler());
        }//w ww.  java 2  s. c o m
    });
    AsyncHttpClient p = getAsyncHttpClient(
            new AsyncHttpClientConfig.Builder().setAsyncHttpClientProviderConfig(nettyConfig).build());

    try {
        final CountDownLatch l = new CountDownLatch(1);
        Request request = new RequestBuilder("GET").setUrl(getTargetUrl()).build();
        p.executeRequest(request, new AsyncCompletionHandlerAdapter() {
            @Override
            public Response onCompleted(Response response) throws Exception {
                try {
                    assertEquals(response.getStatusCode(), 200);
                    assertEquals(response.getHeader("X-Original-Content-Encoding"), "<original encoding>");
                } finally {
                    l.countDown();
                }
                return response;
            }
        }).get();
        if (!l.await(TIMEOUT, TimeUnit.SECONDS)) {
            fail("Timeout out");
        }
    } finally {
        p.close();
    }
}

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From source file:org.jfxvnc.net.rfb.codec.handshaker.RfbClientHandshaker.java

License:Apache License

public final ChannelFuture handshake(Channel channel, final ChannelPromise promise) {

    channel.writeAndFlush(Unpooled.wrappedBuffer(version.getBytes())).addListener((ChannelFuture future) -> {
        if (!future.isSuccess()) {
            promise.setFailure(future.cause());
            return;
        }//  ww  w . ja  va 2  s .  co m

        ChannelPipeline p = future.channel().pipeline();
        ChannelHandlerContext ctx = p.context(ProtocolHandshakeHandler.class);
        p.addBefore(ctx.name(), "rfb-handshake-decoder", newRfbClientDecoder());
        p.addBefore(ctx.name(), "rfb-handshake-encoder", newRfbClientEncoder());
        promise.setSuccess();

    });
    return promise;
}

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From source file:org.jfxvnc.net.rfb.codec.ProtocolHandler.java

License:Apache License

@Override
protected void decode(final ChannelHandlerContext ctx, Object msg, List<Object> out) throws Exception {

    if (msg instanceof ImageRect) {
        render.render((ImageRect) msg, () -> {
            // logger.debug("render completed");
            // sendFramebufferUpdateRequest(ctx, true, 0, 0,
            // serverInit.getFrameBufferWidth(),
            // serverInit.getFrameBufferHeight());

        });/*from  w  ww  .j av  a  2  s .c o m*/
        return;
    }
    if (msg instanceof ServerDecoderEvent) {
        render.eventReceived((ServerDecoderEvent) msg);
        return;
    }

    if (!(msg instanceof ServerInitEvent)) {
        logger.error("unknown message: {}", msg);
        ctx.fireChannelRead(msg);
        return;
    }

    serverInit = (ServerInitEvent) msg;
    logger.debug("handshake completed with {}", serverInit);

    FrameDecoderHandler frameHandler = new FrameDecoderHandler(serverInit.getPixelFormat());
    if (!frameHandler.isPixelFormatSupported()) {
        ProtocolException e = new ProtocolException(String.format("pixelformat: (%s bpp) not supported yet",
                serverInit.getPixelFormat().getBitPerPixel()));
        exceptionCaught(ctx, e);
        return;
    }

    ChannelPipeline cp = ctx.pipeline();

    cp.addBefore(ctx.name(), "rfb-encoding-encoder", new PreferedEncodingEncoder());
    PreferedEncoding prefEncodings = getPreferedEncodings(frameHandler.getSupportedEncodings());
    ctx.write(prefEncodings);

    cp.addBefore(ctx.name(), "rfb-pixelformat-encoder", new PixelFormatEncoder());
    ctx.write(serverInit.getPixelFormat());
    ctx.flush();

    cp.addBefore(ctx.name(), "rfb-frame-handler", frameHandler);
    cp.addBefore(ctx.name(), "rfb-keyevent-encoder", new KeyButtonEventEncoder());
    cp.addBefore(ctx.name(), "rfb-pointerevent-encoder", new PointerEventEncoder());
    cp.addBefore(ctx.name(), "rfb-cuttext-encoder", new ClientCutTextEncoder());

    render.eventReceived(getConnectInfoEvent(ctx, prefEncodings));

    render.registerInputEventListener(event -> ctx.writeAndFlush(event, ctx.voidPromise()));

    logger.debug("request full framebuffer update");
    sendFramebufferUpdateRequest(ctx, false, 0, 0, serverInit.getFrameBufferWidth(),
            serverInit.getFrameBufferHeight());

    logger.trace("channel pipeline: {}", cp.toMap().keySet());
}

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From source file:org.jfxvnc.net.rfb.codec.ProtocolHandler.java

License:Apache License

@Override
public void handlerAdded(ChannelHandlerContext ctx) {
    ChannelPipeline cp = ctx.pipeline();
    if (cp.get(ProtocolHandshakeHandler.class) == null) {
        cp.addBefore(ctx.name(), "rfb-handshake-handler", new ProtocolHandshakeHandler(config));
    }//from  w ww .  j av a  2s . com
}

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From source file:org.jfxvnc.net.rfb.codec.security.RfbSecurityHandshaker.java

License:Apache License

public final ChannelFuture handshake(Channel channel, boolean sendResponse, ChannelPromise promise) {
    ChannelPipeline p = channel.pipeline();
    ChannelHandlerContext ctx = p.context(RfbClientDecoder.class);
    p.addBefore(ctx.name(), "rfb-security-decoder", newSecurityDecoder());

    ChannelHandlerContext ctx2 = p.context(RfbClientEncoder.class);
    p.addBefore(ctx2.name(), "rfb-security-encoder", newSecurityEncoder());
    if (!sendResponse) {
        return promise.setSuccess();
    }/* w  w  w  . jav  a 2s  .  co m*/
    channel.writeAndFlush(Unpooled.buffer(1).writeByte(securityType.getType()), promise);
    return promise;
}

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From source file:org.wso2.carbon.transport.http.netty.listener.HTTPServerChannelInitializer.java

License:Open Source License

@Override
public void initChannel(SocketChannel ch) throws Exception {
    if (log.isDebugEnabled()) {
        log.debug("Initializing source channel pipeline");
    }//from   www  .  j  a v  a  2 s  . c  o m

    ChannelPipeline pipeline = ch.pipeline();

    if (sslConfig != null) {
        pipeline.addLast(Constants.SSL_HANDLER, new SslHandler(new SSLHandlerFactory(sslConfig).build()));
    }

    pipeline.addLast("encoder", new HttpResponseEncoder());
    configureHTTPPipeline(pipeline);

    if (socketIdleTimeout > 0) {
        pipeline.addBefore(Constants.HTTP_SOURCE_HANDLER, Constants.IDLE_STATE_HANDLER, new IdleStateHandler(
                socketIdleTimeout, socketIdleTimeout, socketIdleTimeout, TimeUnit.MILLISECONDS));
    }
}

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