Example usage for io.netty.channel ChannelPipeline context

Introduction

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

Prototype

ChannelHandlerContext context(Class<? extends ChannelHandler> handlerType);

Source Link

Document

Returns the context object of the ChannelHandler of the specified type in this pipeline.

Usage

From source file:com.flysoloing.learning.network.netty.http2.helloworld.multiplex.server.Http2ServerInitializer.java

License:Apache License

/**
 * Configure the pipeline for a cleartext upgrade from HTTP to HTTP/2.0
 *//*from w w w.  j a  va  2  s.c  o m*/
private void configureClearText(SocketChannel ch) {
    final ChannelPipeline p = ch.pipeline();
    final HttpServerCodec sourceCodec = new HttpServerCodec();

    p.addLast(sourceCodec);
    p.addLast(new HttpServerUpgradeHandler(sourceCodec, upgradeCodecFactory));
    p.addLast(new SimpleChannelInboundHandler<HttpMessage>() {
        @Override
        protected void channelRead0(ChannelHandlerContext ctx, HttpMessage msg) throws Exception {
            // If this handler is hit then no upgrade has been attempted and the client is just talking HTTP.
            System.err.println("Directly talking: " + msg.protocolVersion() + " (no upgrade was attempted)");
            ChannelPipeline pipeline = ctx.pipeline();
            ChannelHandlerContext thisCtx = pipeline.context(this);
            pipeline.addAfter(thisCtx.name(), null,
                    new HelloWorldHttp1Handler("Direct. No Upgrade Attempted."));
            pipeline.replace(this, null, new HttpObjectAggregator(maxHttpContentLength));
            ctx.fireChannelRead(ReferenceCountUtil.retain(msg));
        }
    });

    p.addLast(new UserEventLogger());
}

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From source file:com.hop.hhxx.example.http2.helloworld.multiplex.server.Http2ServerInitializer.java

License:Apache License

/**
 * Configure the pipeline for a cleartext upgrade from HTTP to HTTP/2.0
 *//*from www . ja v  a2 s . c o  m*/
private void configureClearText(SocketChannel ch) {
    final ChannelPipeline p = ch.pipeline();
    final HttpServerCodec sourceCodec = new HttpServerCodec();

    p.addLast(sourceCodec);
    p.addLast(new HttpServerUpgradeHandler(sourceCodec, upgradeCodecFactory));
    p.addLast(new SimpleChannelInboundHandler<HttpMessage>() {
        @Override
        protected void channelRead0(ChannelHandlerContext ctx, HttpMessage msg) throws Exception {
            // If this handler is hit then no upgrade has been attempted and the client is just talking HTTP.
            System.err.println("Directly talking: " + msg.protocolVersion() + " (no upgrade was attempted)");
            ChannelPipeline pipeline = ctx.pipeline();
            ChannelHandlerContext thisCtx = pipeline.context(this);
            pipeline.addAfter(thisCtx.name(), null,
                    new HelloWorldHttp1Handler("Direct. No Upgrade Attempted."));
            pipeline.replace(this, null, new HttpObjectAggregator(maxHttpContentLength));
            ctx.fireChannelRead(msg);
        }
    });

    p.addLast(new UserEventLogger());
}

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From source file:com.linecorp.armeria.client.http.HttpClientPipelineConfigurator.java

License:Apache License

@Override
public void connect(ChannelHandlerContext ctx, SocketAddress remoteAddress, SocketAddress localAddress,
        ChannelPromise promise) throws Exception {

    // Remember the requested remote address for later use.
    this.remoteAddress = (InetSocketAddress) remoteAddress;

    // Configure the pipeline.
    final Channel ch = ctx.channel();

    final ChannelPipeline p = ch.pipeline();
    p.addLast(new FlushConsolidationHandler());
    p.addLast(ReadSuppressingHandler.INSTANCE);

    try {/*from w  ww.  j av a2s.c o m*/
        if (sslCtx != null) {
            configureAsHttps(ch);
        } else {
            configureAsHttp(ch);
        }
    } catch (Throwable t) {
        promise.tryFailure(t);
        ctx.close();
    } finally {
        if (p.context(this) != null) {
            p.remove(this);
        }
    }

    ctx.connect(remoteAddress, localAddress, promise);
}

---

From source file:com.linecorp.armeria.client.HttpClientPipelineConfigurator.java

License:Apache License

@Override
public void connect(ChannelHandlerContext ctx, SocketAddress remoteAddress, SocketAddress localAddress,
        ChannelPromise promise) throws Exception {

    // Remember the requested remote address for later use.
    final InetSocketAddress inetRemoteAddr = (InetSocketAddress) remoteAddress;
    this.remoteAddress = inetRemoteAddr;

    // Configure the pipeline.
    final Channel ch = ctx.channel();

    final ChannelPipeline p = ch.pipeline();
    p.addLast(new FlushConsolidationHandler());
    p.addLast(ReadSuppressingHandler.INSTANCE);

    try {//from   www  .j  a va2 s  .co  m
        if (sslCtx != null) {
            configureAsHttps(ch, inetRemoteAddr);
        } else {
            configureAsHttp(ch);
        }
    } catch (Throwable t) {
        promise.tryFailure(t);
        ctx.close();
    } finally {
        if (p.context(this) != null) {
            p.remove(this);
        }
    }

    ctx.connect(remoteAddress, localAddress, promise);
}

---

From source file:com.linecorp.armeria.client.HttpConfigurator.java

License:Apache License

@Override
public void connect(ChannelHandlerContext ctx, SocketAddress remoteAddress, SocketAddress localAddress,
        ChannelPromise promise) throws Exception {

    // Remember the requested remote address for later use.
    this.remoteAddress = (InetSocketAddress) remoteAddress;

    // Configure the pipeline.
    final Channel ch = ctx.channel();
    try {/*  www.  java2 s  .  c  o m*/
        if (sslCtx != null) {
            configureAsHttps(ch);
        } else {
            configureAsHttp(ch);
        }
    } catch (Throwable t) {
        promise.tryFailure(t);
        ctx.close();
    } finally {
        final ChannelPipeline pipeline = ch.pipeline();
        if (pipeline.context(this) != null) {
            pipeline.remove(this);
        }
    }

    ctx.connect(remoteAddress, localAddress, promise);
}

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From source file:com.linecorp.armeria.client.HttpConfigurator.java

License:Apache License

void addBeforeSessionHandler(ChannelPipeline pipeline, ChannelHandler handler) {
    // Get the name of the HttpSessionHandler so that we can put our handlers before it.
    final String sessionHandlerName = pipeline.context(HttpSessionHandler.class).name();
    pipeline.addBefore(sessionHandlerName, null, handler);
}

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From source file:com.quavo.osrs.network.NetworkMessageHandler.java

License:Open Source License

@Override
protected void channelRead0(ChannelHandlerContext ctx, NetworkMessage msg) throws Exception {
    NetworkMessageListener<NetworkMessage> listener = NetworkMessageRepository.getNetworkListener(msg);

    listener.handleMessage(ctx, msg);//ww w.j a v  a 2  s .c o  m

    ChannelPipeline pipeline = ctx.pipeline();
    ChannelHandler handler = msg.getHandler();

    if (pipeline.context(handler) != null) {

        // flush for specific handler.
        pipeline.context(handler).flush();
    }
}

---

From source file:com.tesora.dve.db.mysql.portal.protocol.StreamValve.java

License:Open Source License

public static StreamValve locateValve(ChannelPipeline pipeline) throws NoSuchElementException {
    //TODO: this assumes only one StreamValve in a pipeline. -sgossard
    ChannelHandlerContext context = pipeline.context(StreamValve.class);

    if (context == null) //TODO: if users wind up calling this directly, it would be nice to provide a no-op version on request. -sgossard
        throw new NoSuchElementException("PauseResume not configured on the current pipeline");

    //cast shouldn't fail, we looked up the context by handler class.
    return (StreamValve) context.handler();
}

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From source file:example.http2.helloworld.server.Http2ServerInitializer.java

License:Apache License

/**
 * Configure the pipeline for a cleartext upgrade from HTTP to HTTP/2.0
 *//*www  . j ava2s  .  c om*/
private void configureClearText(SocketChannel ch) {
    final ChannelPipeline p = ch.pipeline();
    final HttpServerCodec sourceCodec = new HttpServerCodec();
    final HttpServerUpgradeHandler upgradeHandler = new HttpServerUpgradeHandler(sourceCodec,
            upgradeCodecFactory);
    final CleartextHttp2ServerUpgradeHandler cleartextHttp2ServerUpgradeHandler = new CleartextHttp2ServerUpgradeHandler(
            sourceCodec, upgradeHandler, new HelloWorldHttp2HandlerBuilder().build());

    p.addLast(cleartextHttp2ServerUpgradeHandler);
    p.addLast(new SimpleChannelInboundHandler<HttpMessage>() {
        @Override
        protected void channelRead0(ChannelHandlerContext ctx, HttpMessage msg) throws Exception {
            // If this handler is hit then no upgrade has been attempted and the client is just talking HTTP.
            System.err.println("Directly talking: " + msg.protocolVersion() + " (no upgrade was attempted)");
            ChannelPipeline pipeline = ctx.pipeline();
            ChannelHandlerContext thisCtx = pipeline.context(this);
            pipeline.addAfter(thisCtx.name(), null,
                    new HelloWorldHttp1Handler("Direct. No Upgrade Attempted."));
            pipeline.replace(this, null, new HttpObjectAggregator(maxHttpContentLength));
            ctx.fireChannelRead(ReferenceCountUtil.retain(msg));
        }
    });

    p.addLast(new UserEventLogger());
}

---

From source file:http2.server.Http2ServerInitializer.java

License:Apache License

/**
 * Configure the pipeline for a cleartext upgrade from HTTP to HTTP/2.0
 *//*from   w  w  w .jav a2  s . c  o  m*/
private void configureClearText(SocketChannel ch) {
    final ChannelPipeline p = ch.pipeline();
    final HttpServerCodec sourceCodec = new HttpServerCodec();

    p.addLast(sourceCodec);
    p.addLast(new HttpServerUpgradeHandler(sourceCodec, upgradeCodecFactory));
    // ?
    p.addLast(new SimpleChannelInboundHandler<HttpMessage>() {
        @Override
        protected void channelRead0(ChannelHandlerContext ctx, HttpMessage msg) throws Exception {
            // If this handler is hit then no upgrade has been attempted and the client is just talking HTTP.
            System.err.println("Directly talking: " + msg.protocolVersion() + " (no upgrade was attempted)");
            ChannelPipeline pipeline = ctx.pipeline();
            ChannelHandlerContext thisCtx = pipeline.context(this);
            pipeline.addAfter(thisCtx.name(), null,
                    new HelloWorldHttp1Handler("Direct. No Upgrade Attempted."));
            pipeline.replace(this, null, new HttpObjectAggregator(maxHttpContentLength));
            ctx.fireChannelRead(ReferenceCountUtil.retain(msg));
        }
    });

    p.addLast(new UserEventLogger());
}

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