Example usage for io.netty.channel ChannelInboundHandlerAdapter ChannelInboundHandlerAdapter

Introduction

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

Prototype

ChannelInboundHandlerAdapter

Source Link

Usage

From source file:com.github.liyp.netty.HandlerChainApp.java

License:Apache License

public static void main(String[] args) throws Exception {

    EventLoopGroup boss = new NioEventLoopGroup();
    EventLoopGroup worker = new NioEventLoopGroup();

    try {//  w  w  w.ja v  a2 s .c om
        ServerBootstrap b = new ServerBootstrap();
        b.group(boss, worker).channel(NioServerSocketChannel.class)
                .childHandler(new ChannelInitializer<SocketChannel>() {
                    @Override
                    protected void initChannel(SocketChannel ch) throws Exception {
                        ch.pipeline().addLast(new ChannelInboundHandlerAdapter() {
                            @Override
                            public void channelActive(ChannelHandlerContext ctx) throws Exception {
                                logger.info("1");
                                ctx.fireChannelActive();
                            }
                        }).addLast(new ChannelInboundHandlerAdapter() {
                            @Override
                            public void channelActive(ChannelHandlerContext ctx) throws Exception {
                                logger.info("2");
                                ctx.fireChannelActive();
                            }
                        }).addLast(new ChannelInboundHandlerAdapter() {
                            @Override
                            public void channelActive(ChannelHandlerContext ctx) throws Exception {
                                logger.info("3");
                                ctx.fireChannelActive();
                            }
                        });
                    }
                }).option(ChannelOption.SO_BACKLOG, 128).childOption(ChannelOption.SO_KEEPALIVE, true);
        ChannelFuture f = b.bind(PORT).sync();
        logger.info("9999");
        f.channel().closeFuture().sync();
    } finally {
        worker.shutdownGracefully();
        boss.shutdownGracefully();
    }
}

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From source file:com.github.pgasync.impl.netty.NettyPgProtocolStream.java

License:Apache License

ChannelInboundHandlerAdapter newStartupHandler(StartupMessage startup) {
    return new ChannelInboundHandlerAdapter() {
        @Override/*from ww  w .jav  a  2  s .c  om*/
        public void channelActive(ChannelHandlerContext context) {
            NettyPgProtocolStream.this.ctx = context;

            if (useSsl) {
                write(SSLHandshake.INSTANCE);
                return;
            }
            write(startup);
            context.pipeline().remove(this);
        }

        @Override
        public void userEventTriggered(ChannelHandlerContext context, Object evt) throws Exception {
            if (evt instanceof SslHandshakeCompletionEvent && ((SslHandshakeCompletionEvent) evt).isSuccess()) {
                write(startup);
                context.pipeline().remove(this);
            }
        }
    };
}

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From source file:com.github.pgasync.impl.netty.NettyPgProtocolStream.java

License:Apache License

ChannelHandler newProtocolHandler() {
    return new ChannelInboundHandlerAdapter() {
        @Override//w ww .j a v a  2 s .  com
        public void channelRead(ChannelHandlerContext context, Object msg) throws Exception {

            if (msg instanceof NotificationResponse) {
                publishNotification((NotificationResponse) msg);
                return;
            }

            if (isCompleteMessage(msg)) {
                Subscriber<? super Message> subscriber = subscribers.remove();
                subscriber.onNext((Message) msg);
                subscriber.onCompleted();
                return;
            }

            subscribers.peek().onNext((Message) msg);
        }

        @Override
        public void channelInactive(ChannelHandlerContext context) throws Exception {
            exceptionCaught(context, new IOException("Channel state changed to inactive"));
        }

        @Override
        @SuppressWarnings("MismatchedQueryAndUpdateOfCollection")
        public void exceptionCaught(ChannelHandlerContext context, Throwable cause) throws Exception {
            Collection<Subscriber<? super Message>> unsubscribe = new LinkedList<>();
            if (subscribers.removeAll(unsubscribe)) {
                unsubscribe.forEach(subscriber -> subscriber.onError(cause));
            }
        }
    };
}

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From source file:com.github.zk1931.jzab.transport.NettyTransportTest.java

License:Apache License

@Test(timeout = 10000)
public void testTieBreaker() throws Exception {
    final String peerA = getUniqueHostPort();
    final String peerB = getUniqueHostPort();
    final CountDownLatch disconnectedA = new CountDownLatch(1);
    final CountDownLatch disconnectedB = new CountDownLatch(1);

    Transport.Receiver receiverA = new Transport.Receiver() {
        public void onReceived(String source, Message message) {
            Assert.fail("Handshake should have failed");
        }//from w ww.j  av a 2  s .  c o m

        public void onDisconnected(String source) {
            LOG.debug("Got disconnected from {}", source);
            disconnectedA.countDown();
        }
    };
    Transport.Receiver receiverB = new Transport.Receiver() {
        public void onReceived(String source, Message message) {
            Assert.fail("Handshake should have failed");
        }

        public void onDisconnected(String source) {
            LOG.debug("Got disconnected from {}", source);
            disconnectedB.countDown();
        }
    };

    final NettyTransport transportA = new NettyTransport(peerA, receiverA, getDirectory());
    final NettyTransport transportB = new NettyTransport(peerB, receiverB, getDirectory());
    transportB.channel.pipeline().addFirst(new ChannelInboundHandlerAdapter() {
        @Override
        public void channelRead(ChannelHandlerContext ctx, Object msg) {
            // B initiates another handshake before responding to A's handshake.
            transportB.send(peerA, createAck(new Zxid(0, 0)));
            ctx.pipeline().remove(this);
            ctx.fireChannelRead(msg);
        }
    });

    // A initiates a handshake.
    transportA.send(peerB, createAck(new Zxid(0, 0)));
    disconnectedA.await();
    disconnectedB.await();
    transportA.shutdown();
    transportB.shutdown();
}

---

From source file:com.github.zk1931.jzab.transport.NettyTransportTest.java

License:Apache License

@Test(timeout = 10000)
public void testHandshakeTimeout() throws Exception {
    final String peerA = getUniqueHostPort();
    final String peerB = getUniqueHostPort();
    final CountDownLatch disconnectedA = new CountDownLatch(1);

    Transport.Receiver receiverA = new Transport.Receiver() {
        public void onReceived(String source, Message message) {
        }/*w  w  w . ja  v  a  2  s. co m*/

        public void onDisconnected(String source) {
            LOG.debug("Got disconnected from {}", source);
            disconnectedA.countDown();
        }
    };
    Transport.Receiver receiverB = new Transport.Receiver() {
        public void onReceived(String source, Message message) {
        }

        public void onDisconnected(String source) {
        }
    };

    final NettyTransport transportA = new NettyTransport(peerA, receiverA, getDirectory());
    final NettyTransport transportB = new NettyTransport(peerB, receiverB, getDirectory());

    // Discard the handshake message.
    transportB.channel.pipeline().addFirst(new ChannelInboundHandlerAdapter() {
        @Override
        public void channelRead(ChannelHandlerContext ctx, Object msg) {
            // discard the message.
        }
    });

    transportA.send(peerB, createAck(new Zxid(0, 0)));
    disconnectedA.await();
    transportA.shutdown();
    transportB.shutdown();
}

---

From source file:com.jroossien.boxx.util.protocol.TinyProtocol.java

License:Open Source License

private void createServerChannelHandler() {
    // Handle connected channels
    endInitProtocol = new ChannelInitializer<Channel>() {

        @Override// w  w  w  .ja  va2s  .c  om
        protected void initChannel(Channel channel) throws Exception {
            try {
                // This can take a while, so we need to stop the main thread from interfering
                synchronized (networkManagers) {
                    // Stop injecting channels
                    if (!closed) {
                        injectChannelInternal(channel);
                    }
                }
            } catch (Exception e) {
                plugin.getLogger().log(Level.SEVERE, "Cannot inject incomming channel " + channel, e);
            }
        }

    };

    // This is executed before Minecraft's channel handler
    beginInitProtocol = new ChannelInitializer<Channel>() {

        @Override
        protected void initChannel(Channel channel) throws Exception {
            channel.pipeline().addLast(endInitProtocol);
        }

    };

    serverChannelHandler = new ChannelInboundHandlerAdapter() {

        @Override
        public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
            Channel channel = (Channel) msg;

            // Prepare to initialize ths channel
            channel.pipeline().addFirst(beginInitProtocol);
            ctx.fireChannelRead(msg);
        }

    };
}

---

From source file:com.kixeye.kixmpp.KixmppCodecTest.java

License:Apache License

@Test
public void testSampleXmppClientSessionPerLine() throws Exception {
    final AtomicReference<KixmppStreamStart> start = new AtomicReference<>();
    final AtomicReference<KixmppStreamEnd> end = new AtomicReference<>();
    final ArrayList<Element> elements = new ArrayList<>();

    ChannelInboundHandlerAdapter handler = new ChannelInboundHandlerAdapter() {
        @Override//w w  w .j a v a  2 s . c o  m
        public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
            if (msg instanceof KixmppStreamStart) {
                start.set((KixmppStreamStart) msg);
            } else if (msg instanceof KixmppStreamEnd) {
                end.set((KixmppStreamEnd) msg);
            } else if (msg instanceof Element) {
                elements.add((Element) msg);
            }
        }
    };

    EmbeddedChannel channel = new EmbeddedChannel(new KixmppCodec(), handler);

    // write a packer per line
    try (InputStream inputStream = this.getClass().getResourceAsStream("/sampleXmppClientSession.xml")) {
        BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));

        String line = null;
        while ((line = reader.readLine()) != null) {
            channel.writeInbound(channel.alloc().buffer().writeBytes(line.getBytes(StandardCharsets.UTF_8)));
        }
    }

    Assert.assertNotNull(start.get());
    Assert.assertNotNull(end.get());

    Assert.assertEquals(5, elements.size());

    Assert.assertEquals("starttls", elements.get(0).getName());
    Assert.assertEquals("auth", elements.get(1).getName());
    Assert.assertEquals("iq", elements.get(2).getName());
    Assert.assertEquals("iq", elements.get(3).getName());
    Assert.assertEquals("iq", elements.get(4).getName());
}

---

From source file:com.kixeye.kixmpp.KixmppCodecTest.java

License:Apache License

@Test
public void testSampleXmppClientSessionPer100Chars() throws Exception {
    final AtomicReference<KixmppStreamStart> start = new AtomicReference<>();
    final AtomicReference<KixmppStreamEnd> end = new AtomicReference<>();
    final ArrayList<Element> elements = new ArrayList<>();

    ChannelInboundHandlerAdapter handler = new ChannelInboundHandlerAdapter() {
        @Override//from   w  w w .j av  a2s  .c o  m
        public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
            if (msg instanceof KixmppStreamStart) {
                start.set((KixmppStreamStart) msg);
            } else if (msg instanceof KixmppStreamEnd) {
                end.set((KixmppStreamEnd) msg);
            } else if (msg instanceof Element) {
                elements.add((Element) msg);
            }
        }
    };

    EmbeddedChannel channel = new EmbeddedChannel(new KixmppCodec(), handler);

    // write a packer per line
    try (InputStream inputStream = this.getClass().getResourceAsStream("/sampleXmppClientSession.xml")) {
        BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));

        int charsRead = 0;
        char[] chars = new char[100];
        while ((charsRead = reader.read(chars)) != -1) {
            StringWriter writer = new StringWriter();

            for (int i = 0; i < charsRead; i++) {
                writer.append(chars[i]);
            }

            channel.writeInbound(
                    channel.alloc().buffer().writeBytes(writer.toString().getBytes(StandardCharsets.UTF_8)));
        }
    }

    Assert.assertNotNull(start.get());
    Assert.assertNotNull(end.get());

    Assert.assertEquals(5, elements.size());

    Assert.assertEquals("starttls", elements.get(0).getName());
    Assert.assertEquals("auth", elements.get(1).getName());
    Assert.assertEquals("iq", elements.get(2).getName());
    Assert.assertEquals("iq", elements.get(3).getName());
    Assert.assertEquals("iq", elements.get(4).getName());
}

---

From source file:com.kixeye.kixmpp.KixmppCodecTest.java

License:Apache License

@Test
public void testSampleXmppServerSession() throws Exception {
    final AtomicReference<KixmppStreamStart> start = new AtomicReference<>();
    final AtomicReference<KixmppStreamEnd> end = new AtomicReference<>();
    final ArrayList<Element> elements = new ArrayList<>();

    ChannelInboundHandlerAdapter handler = new ChannelInboundHandlerAdapter() {
        @Override//from ww  w.  j  a  v a 2s  .c o  m
        public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
            if (msg instanceof KixmppStreamStart) {
                start.set((KixmppStreamStart) msg);
            } else if (msg instanceof KixmppStreamEnd) {
                end.set((KixmppStreamEnd) msg);
            } else if (msg instanceof Element) {
                elements.add((Element) msg);
            }
        }
    };

    EmbeddedChannel channel = new EmbeddedChannel(new KixmppCodec(), handler);

    // write a packet per line
    try (InputStream inputStream = this.getClass().getResourceAsStream("/sampleXmppServerSession.xml")) {
        BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));

        String line = null;
        while ((line = reader.readLine()) != null) {
            channel.writeInbound(channel.alloc().buffer().writeBytes(line.getBytes(StandardCharsets.UTF_8)));
        }
    }

    Assert.assertNotNull(start.get());
    Assert.assertNotNull(end.get());

    Assert.assertEquals(6, elements.size());

    Assert.assertEquals("features", elements.get(0).getName());
    Assert.assertEquals("proceed", elements.get(1).getName());
    Assert.assertEquals("success", elements.get(2).getName());
    Assert.assertEquals("iq", elements.get(3).getName());
    Assert.assertEquals("iq", elements.get(4).getName());
    Assert.assertEquals("iq", elements.get(5).getName());
}

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From source file:com.kixeye.kixmpp.p2p.node.NodeServerTest.java

License:Apache License

@Test(expected = java.net.BindException.class)
public void portAlreadyInUseTest() {
    final MessageRegistry messageRegistry = new MessageRegistry();
    final NioEventLoopGroup bossGroup = new NioEventLoopGroup();
    final NioEventLoopGroup workerGroup = new NioEventLoopGroup();
    NodeServer serverA = new NodeServer();
    NodeServer serverB = new NodeServer();
    try {/* www .  j av a2 s .  co m*/
        serverA.initialize("127.0.0.1", 8042, bossGroup, workerGroup, messageRegistry,
                new ChannelInboundHandlerAdapter());
        serverB.initialize("127.0.0.1", 8042, bossGroup, workerGroup, messageRegistry,
                new ChannelInboundHandlerAdapter());
    } finally {
        serverA.shutdown();
        serverB.shutdown();
        bossGroup.shutdownGracefully();
        workerGroup.shutdownGracefully();
    }
}

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