Example usage for io.netty.channel ChannelHandlerContext name

Introduction

In this page you can find the example usage for io.netty.channel ChannelHandlerContext name.

Prototype

String name();

Source Link

Document

The unique name of the ChannelHandlerContext .The name was used when then ChannelHandler was added to the ChannelPipeline .

Usage

From source file:com.linkedin.r2.transport.http.client.Http2InitializerHandler.java

License:Apache License

/**
 * Sets up HTTP/2 over TCP through protocol upgrade (h2c) pipeline
 *//*from   w  w w .ja  v  a 2s.  c o m*/
private void configureHttpPipeline(ChannelHandlerContext ctx, Request request) throws Exception {
    Http2StreamCodec http2Codec = new Http2StreamCodecBuilder().connection(_connection)
            .maxContentLength(_maxResponseSize).maxHeaderSize(_maxHeaderSize)
            .gracefulShutdownTimeoutMillis(_gracefulShutdownTimeout).streamingTimeout(_streamingTimeout)
            .scheduler(_scheduler).build();
    HttpClientCodec sourceCodec = new HttpClientCodec(MAX_INITIAL_LINE_LENGTH, _maxHeaderSize, _maxChunkSize);
    Http2ClientUpgradeCodec targetCodec = new Http2ClientUpgradeCodec(http2Codec);
    HttpClientUpgradeHandler upgradeCodec = new HttpClientUpgradeHandler(sourceCodec, targetCodec,
            MAX_CLIENT_UPGRADE_CONTENT_LENGTH);
    Http2SchemeHandler schemeHandler = new Http2SchemeHandler(HttpScheme.HTTP.toString());

    String host = request.getURI().getAuthority();
    int port = request.getURI().getPort();
    String path = request.getURI().getPath();

    Http2UpgradeHandler upgradeHandler = new Http2UpgradeHandler(host, port, path);
    Http2StreamResponseHandler responseHandler = new Http2StreamResponseHandler();
    Http2ChannelPoolHandler channelPoolHandler = new Http2ChannelPoolHandler();

    ctx.pipeline().addBefore(ctx.name(), "sourceCodec", sourceCodec);
    ctx.pipeline().addBefore(ctx.name(), "upgradeCodec", upgradeCodec);
    ctx.pipeline().addBefore(ctx.name(), "upgradeHandler", upgradeHandler);
    ctx.pipeline().addBefore(ctx.name(), "schemeHandler", schemeHandler);
    ctx.pipeline().addBefore(ctx.name(), "responseHandler", responseHandler);
    ctx.pipeline().addBefore(ctx.name(), "channelHandler", channelPoolHandler);

    _setupComplete = true;
}

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From source file:com.linkedin.r2.transport.http.client.Http2InitializerHandler.java

License:Apache License

/**
 * Sets up HTTP/2 over TLS through ALPN (h2) pipeline
 *///from   w  ww. j av  a2 s  .  c  om
private void configureHttpsPipeline(ChannelHandlerContext ctx) throws Exception {
    JdkSslContext context = new JdkSslContext(_sslContext, IS_CLIENT,
            Arrays.asList(_sslParameters.getCipherSuites()), IdentityCipherSuiteFilter.INSTANCE,
            new ApplicationProtocolConfig(ApplicationProtocolConfig.Protocol.ALPN,
                    ApplicationProtocolConfig.SelectorFailureBehavior.NO_ADVERTISE,
                    ApplicationProtocolConfig.SelectedListenerFailureBehavior.ACCEPT,
                    ApplicationProtocolNames.HTTP_2, ApplicationProtocolNames.HTTP_1_1),
            _sslParameters.getNeedClientAuth() ? ClientAuth.REQUIRE : ClientAuth.OPTIONAL);
    SslHandler sslHandler = context.newHandler(ctx.alloc());

    Http2StreamCodec http2Codec = new Http2StreamCodecBuilder().connection(_connection)
            .maxContentLength(_maxResponseSize).maxHeaderSize(_maxHeaderSize)
            .gracefulShutdownTimeoutMillis(_gracefulShutdownTimeout).streamingTimeout(_streamingTimeout)
            .scheduler(_scheduler).build();

    Http2AlpnHandler alpnHandler = new Http2AlpnHandler(sslHandler, http2Codec);
    Http2SchemeHandler schemeHandler = new Http2SchemeHandler(HttpScheme.HTTPS.toString());
    Http2StreamResponseHandler responseHandler = new Http2StreamResponseHandler();
    Http2ChannelPoolHandler channelPoolHandler = new Http2ChannelPoolHandler();

    ctx.pipeline().addBefore(ctx.name(), "alpnHandler", alpnHandler);
    ctx.pipeline().addBefore(ctx.name(), "schemeHandler", schemeHandler);
    ctx.pipeline().addBefore(ctx.name(), "responseHandler", responseHandler);
    ctx.pipeline().addBefore(ctx.name(), "channelHandler", channelPoolHandler);

    _setupComplete = true;
}

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From source file:com.otcdlink.chiron.downend.Http11ProxyHandler.java

License:Apache License

@Override
protected void addCodec(ChannelHandlerContext ctx) throws Exception {
    ChannelPipeline p = ctx.pipeline();//from w  w  w.ja  va2s .  c o  m
    String name = ctx.name();
    p.addBefore(name, null, codec);
}

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From source file:com.shouxun.server.netty.tcp.EchoServerHandler.java

License:Apache License

public void removeFromHashMapClient(ChannelHandlerContext ctxClient) {
    ChannelHandlerContext ctx;
    for (String imei : hashMapClient.keySet()) {
        ctx = hashMapClient.get(imei);//  w w  w  .j a v a2s  .c om
        if (ctx.name().equals(ctxClient.name())) {
            hashMapClient.remove(imei);
            break;
        }
    }
}

---

From source file:com.spotify.netty4.handler.codec.zmtp.ZMTPCodec.java

License:Apache License

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

    // Discard input if handshake failed. It is expected that the user will close the channel.
    if (session.handshakeFuture().isDone()) {
        assert !session.handshakeFuture().isSuccess();
        in.skipBytes(in.readableBytes());
    }/*from   ww  w.j a v a 2  s  . c o  m*/

    // Shake hands
    final ZMTPHandshake handshake;
    try {
        handshake = handshaker.handshake(in, ctx);
        if (handshake == null) {
            // Handshake is not yet done. Await more input.
            return;
        }
    } catch (Exception e) {
        session.handshakeFailure(e);
        ctx.fireUserEventTriggered(new ZMTPHandshakeFailure(session));
        throw e;
    }

    // Handshake is done.
    session.handshakeSuccess(handshake);

    // Replace this handler with the framing encoder and decoder
    if (actualReadableBytes() > 0) {
        out.add(in.readBytes(actualReadableBytes()));
    }
    final ZMTPDecoder decoder = config.decoder().decoder(session);
    final ZMTPEncoder encoder = config.encoder().encoder(session);
    final ZMTPWireFormat wireFormat = ZMTPWireFormats.wireFormat(session.negotiatedVersion());
    final ChannelHandler handler = new CombinedChannelDuplexHandler<ZMTPFramingDecoder, ZMTPFramingEncoder>(
            new ZMTPFramingDecoder(wireFormat, decoder), new ZMTPFramingEncoder(wireFormat, encoder));
    ctx.pipeline().replace(this, ctx.name(), handler);

    // Tell the user that the handshake is complete
    ctx.fireUserEventTriggered(new ZMTPHandshakeSuccess(session, handshake));
}

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From source file:de.unipassau.isl.evs.ssh.core.network.ClientHandshakeHandler.java

License:Open Source License

/**
 * Called once the TCP connection is established.
 * Configures the per-connection pipeline that is responsible for handling incoming and outgoing data.
 * After an incoming packet is decrypted, decoded and verified,
 * it will be sent to its target {@link de.unipassau.isl.evs.ssh.core.handler.MessageHandler}
 * by the {@link IncomingDispatcher}./*from   ww  w .j  av  a2s .c  o m*/
 */
@Override
public void channelRegistered(ChannelHandlerContext ctx) throws Exception {
    Log.v(TAG, "channelRegistered " + ctx);
    ctx.attr(ATTR_HANDSHAKE_FINISHED).set(false);

    // Add (de-)serialization Handlers before this Handler
    ctx.pipeline().addBefore(ctx.name(), ObjectEncoder.class.getSimpleName(), new ObjectEncoder());
    ctx.pipeline().addBefore(ctx.name(), ObjectDecoder.class.getSimpleName(),
            new ObjectDecoder(ClassResolvers.weakCachingConcurrentResolver(getClass().getClassLoader())));
    ctx.pipeline().addBefore(ctx.name(), LoggingHandler.class.getSimpleName(),
            new LoggingHandler(LogLevel.TRACE));

    // Timeout Handler
    ctx.pipeline().addBefore(ctx.name(), IdleStateHandler.class.getSimpleName(),
            new IdleStateHandler(READER_IDLE_TIME, WRITER_IDLE_TIME, ALL_IDLE_TIME));
    ctx.pipeline().addBefore(ctx.name(), TimeoutHandler.class.getSimpleName(), new TimeoutHandler());

    // Add exception handler
    ctx.pipeline().addAfter(ctx.name(), PipelinePlug.class.getSimpleName(), new PipelinePlug());

    super.channelRegistered(ctx);
    Log.v(TAG, "Pipeline after register: " + ctx.pipeline());
}

---

From source file:de.unipassau.isl.evs.ssh.core.network.ClientHandshakeHandler.java

License:Open Source License

protected void handshakeSuccessful(ChannelHandlerContext ctx) {
    if (state != State.FINISHED) {
        throw new IllegalStateException("Handshake not finished: " + state);
    }/*w  ww. j ava 2s  .c  o  m*/

    // allow pings
    TimeoutHandler.setPingEnabled(ctx.channel(), true);
    // add Dispatcher
    ctx.pipeline().addBefore(ctx.name(), IncomingDispatcher.class.getSimpleName(),
            container.require(IncomingDispatcher.KEY));
    // Logging is handled by IncomingDispatcher and OutgoingRouter
    ctx.pipeline().remove(LoggingHandler.class.getSimpleName());
    // remove HandshakeHandler
    ctx.pipeline().remove(this);

    Log.v(TAG, "Handshake successful, current Pipeline: " + ctx.pipeline());
    container.require(Client.KEY).notifyClientConnected();
}

---

From source file:de.unipassau.isl.evs.ssh.master.network.ServerHandshakeHandler.java

License:Open Source License

/**
 * Configures the per-connection pipeline that is responsible for handling incoming and outgoing data.
 * After an incoming packet is decrypted, decoded and verified,
 * it will be sent to its target {@link MessageHandler}
 * by the {@link IncomingDispatcher}.// ww  w.  ja v  a2 s . c  om
 */
@Override
public void channelRegistered(ChannelHandlerContext ctx) throws Exception {
    Log.v(TAG, "channelRegistered " + ctx);
    if (container == null) {
        //Do not accept new connections after the Server has been shut down
        Log.v(TAG, "channelRegistered:closed");
        ctx.close();
        return;
    }

    // Add (de-)serialization Handlers before this Handler
    ctx.pipeline().addBefore(ctx.name(), ObjectEncoder.class.getSimpleName(), new ObjectEncoder());
    ctx.pipeline().addBefore(ctx.name(), ObjectDecoder.class.getSimpleName(),
            new ObjectDecoder(ClassResolvers.weakCachingConcurrentResolver(getClass().getClassLoader())));
    ctx.pipeline().addBefore(ctx.name(), LoggingHandler.class.getSimpleName(),
            new LoggingHandler(LogLevel.TRACE));

    // Timeout Handler
    ctx.pipeline().addBefore(ctx.name(), IdleStateHandler.class.getSimpleName(),
            new IdleStateHandler(READER_IDLE_TIME, WRITER_IDLE_TIME, ALL_IDLE_TIME));
    ctx.pipeline().addBefore(ctx.name(), TimeoutHandler.class.getSimpleName(), new TimeoutHandler());

    // Add exception handler
    ctx.pipeline().addLast(PipelinePlug.class.getSimpleName(), new PipelinePlug());

    super.channelRegistered(ctx);
    Log.v(TAG, "Pipeline after register: " + ctx.pipeline());
}

---

From source file:de.unipassau.isl.evs.ssh.master.network.ServerHandshakeHandler.java

License:Open Source License

protected void handshakeSuccessful(ChannelHandlerContext ctx) {
    final State state = getState(ctx);
    if (state != State.FINISHED) {
        throw new IllegalStateException("Handshake not finished: " + state);
    }/*w  w  w . j  a v  a2 s.c o  m*/
    final DeviceID deviceID = ctx.channel().attr(ATTR_PEER_ID).get();

    // allow pings
    TimeoutHandler.setPingEnabled(ctx.channel(), true);
    // add Dispatcher
    ctx.pipeline().addBefore(ctx.name(), IncomingDispatcher.class.getSimpleName(),
            container.require(IncomingDispatcher.KEY));
    // Logging is handled by IncomingDispatcher and OutgoingRouter
    ctx.pipeline().remove(LoggingHandler.class.getSimpleName());
    // remove HandshakeHandler
    ctx.pipeline().remove(this);

    // Register connection
    server.getActiveChannels().add(ctx.channel());
    Log.i(TAG, "Handshake with " + deviceID + " successful, current Pipeline: " + ctx.pipeline());

    Message message = new Message(
            new DeviceConnectedPayload(deviceID, ctx.channel(), ctx.attr(ATTR_LOCAL_CONNECTION).get()));
    container.require(OutgoingRouter.KEY).sendMessageLocal(RoutingKeys.MASTER_DEVICE_CONNECTED, message);

    ctx.channel().closeFuture().addListener(new ChannelFutureListener() {
        @Override
        public void operationComplete(ChannelFuture future) throws Exception {
            for (Server.ServerConnectionListener listener : server.listeners) {
                listener.onClientConnected(future.channel());
            }
        }
    });

    for (Server.ServerConnectionListener listener : server.listeners) {
        listener.onClientConnected(ctx.channel());
    }
}

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From source file:diskCacheV111.doors.NettyLineBasedDoor.java

License:Open Source License

@Override
public void handlerAdded(ChannelHandlerContext ctx) throws Exception {
    ChannelPipeline pipeline = ctx.pipeline();
    String self = ctx.name();

    if (expectProxyProtocol) {
        pipeline.addBefore("door", "haproxy", new HAProxyMessageDecoder());
    }/*from  ww w.j av  a  2s. c  o m*/

    // Decoders
    pipeline.addBefore(self, "frameDecoder", new LineBasedFrameDecoder(KiB.toBytes(64)));
    pipeline.addBefore(self, "stringDecoder", new StringDecoder(charset));

    // Encoder
    pipeline.addBefore(self, "lineEncoder", new LineEncoder(lineSeparator, charset));

    pipeline.addBefore(self, "logger", new LoggingHandler());
}

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