Examples with Bootstrap io.netty.bootstrap.Bootstrap used on opensource projects

Example 16 with Bootstrap

use of io.netty.bootstrap.Bootstrap in project netty by netty.

the class SctpMultiHomingEchoClient method main.

public static void main(String[] args) throws Exception {
    // Configure the client.
    EventLoopGroup group = new NioEventLoopGroup();
    try {
        Bootstrap b = new Bootstrap();
        b.group(group).channel(NioSctpChannel.class).option(SctpChannelOption.SCTP_NODELAY, true).handler(new ChannelInitializer<SctpChannel>() {

            @Override
            public void initChannel(SctpChannel ch) throws Exception {
                ch.pipeline().addLast(//                             new LoggingHandler(LogLevel.INFO),
                new SctpEchoClientHandler());
            }
        });
        InetSocketAddress localAddress = SocketUtils.socketAddress(CLIENT_PRIMARY_HOST, CLIENT_PORT);
        InetAddress localSecondaryAddress = SocketUtils.addressByName(CLIENT_SECONDARY_HOST);
        InetSocketAddress remoteAddress = SocketUtils.socketAddress(SERVER_REMOTE_HOST, SERVER_REMOTE_PORT);
        // Bind the client channel.
        ChannelFuture bindFuture = b.bind(localAddress).sync();
        // Get the underlying sctp channel
        SctpChannel channel = (SctpChannel) bindFuture.channel();
        // Bind the secondary address.
        // Please note that, bindAddress in the client channel should be done before connecting if you have not
        // enable Dynamic Address Configuration. See net.sctp.addip_enable kernel param
        channel.bindAddress(localSecondaryAddress).sync();
        // Finish connect
        ChannelFuture connectFuture = channel.connect(remoteAddress).sync();
        // Wait until the connection is closed.
        connectFuture.channel().closeFuture().sync();
    } finally {
        // Shut down the event loop to terminate all threads.
        group.shutdownGracefully();
    }
}

Example 17 with Bootstrap

use of io.netty.bootstrap.Bootstrap in project netty by netty.

the class SecureChatClient method main.

public static void main(String[] args) throws Exception {
    // Configure SSL.
    final SslContext sslCtx = SslContextBuilder.forClient().trustManager(InsecureTrustManagerFactory.INSTANCE).build();
    EventLoopGroup group = new NioEventLoopGroup();
    try {
        Bootstrap b = new Bootstrap();
        b.group(group).channel(NioSocketChannel.class).handler(new SecureChatClientInitializer(sslCtx));
        // Start the connection attempt.
        Channel ch = b.connect(HOST, PORT).sync().channel();
        // Read commands from the stdin.
        ChannelFuture lastWriteFuture = null;
        BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
        for (; ; ) {
            String line = in.readLine();
            if (line == null) {
                break;
            }
            // Sends the received line to the server.
            lastWriteFuture = ch.writeAndFlush(line + "\r\n");
            // the connection.
            if ("bye".equals(line.toLowerCase())) {
                ch.closeFuture().sync();
                break;
            }
        }
        // Wait until all messages are flushed before closing the channel.
        if (lastWriteFuture != null) {
            lastWriteFuture.sync();
        }
    } finally {
        // The connection is closed automatically on shutdown.
        group.shutdownGracefully();
    }
}

Example 18 with Bootstrap

use of io.netty.bootstrap.Bootstrap in project netty by netty.

the class LocalChannelTest method testWriteFailsFastOnClosedChannel.

@Test
public void testWriteFailsFastOnClosedChannel() throws Exception {
    Bootstrap cb = new Bootstrap();
    ServerBootstrap sb = new ServerBootstrap();
    cb.group(group1).channel(LocalChannel.class).handler(new TestHandler());
    sb.group(group2).channel(LocalServerChannel.class).childHandler(new ChannelInitializer<LocalChannel>() {

        @Override
        public void initChannel(LocalChannel ch) throws Exception {
            ch.pipeline().addLast(new TestHandler());
        }
    });
    Channel sc = null;
    Channel cc = null;
    try {
        // Start server
        sc = sb.bind(TEST_ADDRESS).sync().channel();
        // Connect to the server
        cc = cb.connect(sc.localAddress()).sync().channel();
        // Close the channel and write something.
        cc.close().sync();
        try {
            cc.writeAndFlush(new Object()).sync();
            fail("must raise a ClosedChannelException");
        } catch (Exception e) {
            assertThat(e, is(instanceOf(ClosedChannelException.class)));
            // the ClosedChannelException has been created by AbstractUnsafe rather than transport implementations.
            if (e.getStackTrace().length > 0) {
                assertThat(e.getStackTrace()[0].getClassName(), is(AbstractChannel.class.getName() + "$AbstractUnsafe"));
                e.printStackTrace();
            }
        }
    } finally {
        closeChannel(cc);
        closeChannel(sc);
    }
}

Example 19 with Bootstrap

use of io.netty.bootstrap.Bootstrap in project netty by netty.

the class LocalChannelTest method testWriteWhilePeerIsClosedReleaseObjectAndFailPromise.

@Test
public void testWriteWhilePeerIsClosedReleaseObjectAndFailPromise() throws InterruptedException {
    Bootstrap cb = new Bootstrap();
    ServerBootstrap sb = new ServerBootstrap();
    final CountDownLatch serverMessageLatch = new CountDownLatch(1);
    final LatchChannelFutureListener serverChannelCloseLatch = new LatchChannelFutureListener(1);
    final LatchChannelFutureListener clientChannelCloseLatch = new LatchChannelFutureListener(1);
    final CountDownLatch writeFailLatch = new CountDownLatch(1);
    final ByteBuf data = Unpooled.wrappedBuffer(new byte[1024]);
    final ByteBuf data2 = Unpooled.wrappedBuffer(new byte[512]);
    final CountDownLatch serverChannelLatch = new CountDownLatch(1);
    final AtomicReference<Channel> serverChannelRef = new AtomicReference<Channel>();
    try {
        cb.group(group1).channel(LocalChannel.class).handler(new TestHandler());
        sb.group(group2).channel(LocalServerChannel.class).childHandler(new ChannelInitializer<LocalChannel>() {

            @Override
            public void initChannel(LocalChannel ch) throws Exception {
                ch.pipeline().addLast(new ChannelInboundHandlerAdapter() {

                    @Override
                    public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
                        if (data.equals(msg)) {
                            ReferenceCountUtil.safeRelease(msg);
                            serverMessageLatch.countDown();
                        } else {
                            super.channelRead(ctx, msg);
                        }
                    }
                });
                serverChannelRef.set(ch);
                serverChannelLatch.countDown();
            }
        });
        Channel sc = null;
        Channel cc = null;
        try {
            // Start server
            sc = sb.bind(TEST_ADDRESS).syncUninterruptibly().channel();
            // Connect to the server
            cc = cb.connect(sc.localAddress()).syncUninterruptibly().channel();
            assertTrue(serverChannelLatch.await(5, SECONDS));
            final Channel ccCpy = cc;
            final Channel serverChannelCpy = serverChannelRef.get();
            serverChannelCpy.closeFuture().addListener(serverChannelCloseLatch);
            ccCpy.closeFuture().addListener(clientChannelCloseLatch);
            // Make sure a write operation is executed in the eventloop
            cc.pipeline().lastContext().executor().execute(new Runnable() {

                @Override
                public void run() {
                    ccCpy.writeAndFlush(data.retainedDuplicate(), ccCpy.newPromise()).addListener(new ChannelFutureListener() {

                        @Override
                        public void operationComplete(ChannelFuture future) throws Exception {
                            serverChannelCpy.eventLoop().execute(new Runnable() {

                                @Override
                                public void run() {
                                    // The point of this test is to write while the peer is closed, so we should
                                    // ensure the peer is actually closed before we write.
                                    int waitCount = 0;
                                    while (ccCpy.isOpen()) {
                                        try {
                                            Thread.sleep(50);
                                        } catch (InterruptedException ignored) {
                                        // ignored
                                        }
                                        if (++waitCount > 5) {
                                            fail();
                                        }
                                    }
                                    serverChannelCpy.writeAndFlush(data2.retainedDuplicate(), serverChannelCpy.newPromise()).addListener(new ChannelFutureListener() {

                                        @Override
                                        public void operationComplete(ChannelFuture future) throws Exception {
                                            if (!future.isSuccess() && future.cause() instanceof ClosedChannelException) {
                                                writeFailLatch.countDown();
                                            }
                                        }
                                    });
                                }
                            });
                            ccCpy.close();
                        }
                    });
                }
            });
            assertTrue(serverMessageLatch.await(5, SECONDS));
            assertTrue(writeFailLatch.await(5, SECONDS));
            assertTrue(serverChannelCloseLatch.await(5, SECONDS));
            assertTrue(clientChannelCloseLatch.await(5, SECONDS));
            assertFalse(ccCpy.isOpen());
            assertFalse(serverChannelCpy.isOpen());
        } finally {
            closeChannel(cc);
            closeChannel(sc);
        }
    } finally {
        data.release();
        data2.release();
    }
}

Example 20 with Bootstrap

use of io.netty.bootstrap.Bootstrap in project netty by netty.

the class LocalChannelTest method testClosePeerInWritePromiseCompleteSameEventLoopPreservesOrder.

@Test
public void testClosePeerInWritePromiseCompleteSameEventLoopPreservesOrder() throws InterruptedException {
    Bootstrap cb = new Bootstrap();
    ServerBootstrap sb = new ServerBootstrap();
    final CountDownLatch messageLatch = new CountDownLatch(2);
    final CountDownLatch serverChannelLatch = new CountDownLatch(1);
    final ByteBuf data = Unpooled.wrappedBuffer(new byte[1024]);
    final AtomicReference<Channel> serverChannelRef = new AtomicReference<Channel>();
    try {
        cb.group(sharedGroup).channel(LocalChannel.class).handler(new TestHandler());
        sb.group(sharedGroup).channel(LocalServerChannel.class).childHandler(new ChannelInitializer<LocalChannel>() {

            @Override
            public void initChannel(LocalChannel ch) throws Exception {
                ch.pipeline().addLast(new ChannelInboundHandlerAdapter() {

                    @Override
                    public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
                        if (msg.equals(data)) {
                            ReferenceCountUtil.safeRelease(msg);
                            messageLatch.countDown();
                        } else {
                            super.channelRead(ctx, msg);
                        }
                    }

                    @Override
                    public void channelInactive(ChannelHandlerContext ctx) throws Exception {
                        messageLatch.countDown();
                        super.channelInactive(ctx);
                    }
                });
                serverChannelRef.set(ch);
                serverChannelLatch.countDown();
            }
        });
        Channel sc = null;
        Channel cc = null;
        try {
            // Start server
            sc = sb.bind(TEST_ADDRESS).syncUninterruptibly().channel();
            // Connect to the server
            cc = cb.connect(sc.localAddress()).syncUninterruptibly().channel();
            assertTrue(serverChannelLatch.await(5, SECONDS));
            final Channel ccCpy = cc;
            // Make sure a write operation is executed in the eventloop
            cc.pipeline().lastContext().executor().execute(new Runnable() {

                @Override
                public void run() {
                    ChannelPromise promise = ccCpy.newPromise();
                    promise.addListener(new ChannelFutureListener() {

                        @Override
                        public void operationComplete(ChannelFuture future) throws Exception {
                            serverChannelRef.get().close();
                        }
                    });
                    ccCpy.writeAndFlush(data.retainedDuplicate(), promise);
                }
            });
            assertTrue(messageLatch.await(5, SECONDS));
            assertFalse(cc.isOpen());
            assertFalse(serverChannelRef.get().isOpen());
        } finally {
            closeChannel(cc);
            closeChannel(sc);
        }
    } finally {
        data.release();
    }
}