Example usage for io.netty.channel EventLoopGroup shutdownGracefully

Introduction

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

Prototype

Future<?> shutdownGracefully();

Source Link

Document

Shortcut method for #shutdownGracefully(long,long,TimeUnit) with sensible default values.

Usage

From source file:MyNettyServer.java

License:Apache License

public static void main(String[] args) throws Exception {
    // Configure SSL.
    final SslContext sslCtx;
    if (SSL) {// w  w w. j ava  2 s.c  om
        SelfSignedCertificate ssc = new SelfSignedCertificate();
        sslCtx = SslContext.newServerContext(ssc.certificate(), ssc.privateKey());
    } else {
        sslCtx = null;
    }

    EventLoopGroup bossGroup = new NioEventLoopGroup(1);
    EventLoopGroup workerGroup = new NioEventLoopGroup();
    try {
        ServerBootstrap b = new ServerBootstrap();
        b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class).handler(new LoggingHandler())
                .childHandler(new ServerInitializer(sslCtx));

        Channel ch = b.bind(PORT).sync().channel();

        System.out.println("Open your web browser and navigate to " + (SSL ? "https" : "http") + "://127.0.0.1:"
                + PORT + '/');

        ch.closeFuture().sync();
    } finally {
        bossGroup.shutdownGracefully();
        workerGroup.shutdownGracefully();
    }

}

---

From source file:WorldClockClient.java

License:Apache License

public void run() throws Exception {
    EventLoopGroup group = new NioEventLoopGroup();
    try {//from w  w  w.j a  v  a  2  s  .  co  m
        Bootstrap b = new Bootstrap();
        b.group(group).channel(NioSocketChannel.class).handler(new WorldClockClientInitializer());

        // Make a new connection.
        Channel ch = b.connect(host, port).sync().channel();

        // Get the handler instance to initiate the request.
        WorldClockClientHandler handler = ch.pipeline().get(WorldClockClientHandler.class);

        // Request and get the response.
        List<String> response = handler.getLocalTimes(cities);

        // Close the connection.
        ch.close();
        group.shutdownGracefully();
        /*
         // Print the response at last but not least.
         Iterator<String> i1 = cities.iterator();
         Iterator<String> i2 = response.iterator();
         while (i1.hasNext()) {
         System.out.format("%28s: %s%n", i1.next(), i2.next());
         }*/
    } finally {
        group.shutdownGracefully();
    }
}

---

From source file:nwses.java

License:Open Source License

/**
 * Main//from w w w. j ava 2 s  .  c o  m
 * @param args Optional command-line parameters for server port and tag
 * @throws Exception 
 */
public static void main(String[] args) throws Exception {
    final int port;
    final String tag;

    boolean SSL = false;

    if (args.length == 0) {
        port = 80;
        tag = "server1";
    } else if (args.length == 1) {
        if (isValidPortNumber(args[0])) {
            port = Integer.parseInt(args[0]);
            tag = "server1";
        } else {
            return;
        }
    } else {
        if (isValidPortNumber(args[0])) {
            port = Integer.parseInt(args[0]);
            tag = args[1];
        } else {
            return;
        }

    }

    // If port 443 is specified to be used, use SSL.
    if (port == 443) {
        SSL = true;
        System.out.println("Websocket secure connection server initialized.");
    }

    final SslContext sslCtx;
    if (SSL) {
        SelfSignedCertificate ssc = new SelfSignedCertificate();
        sslCtx = SslContextBuilder.forServer(ssc.certificate(), ssc.privateKey()).build();
    } else {
        sslCtx = null;
    }

    EventLoopGroup bossGroup = new NioEventLoopGroup(1);
    EventLoopGroup workerGroup = new NioEventLoopGroup();
    try {
        ServerBootstrap b = new ServerBootstrap();
        b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
                .handler(new LoggingHandler(LogLevel.TRACE))
                .childHandler(new WebSocketServerInitializer(sslCtx, tag));

        System.out.println("Server: " + tag + " started at port: " + port + " \n");

        Channel chnl = b.bind(port).sync().channel();
        chnl.closeFuture().sync();

    } catch (Exception e) { //Catch exceptions e.g. trying to open second server on same port
        System.err.println("Caught exception: " + e.getMessage());
    } finally {
        bossGroup.shutdownGracefully();
        workerGroup.shutdownGracefully();
        System.out.println("Server closed..");
    }
}

---

From source file:HttpSnoopServer.java

License:Apache License

public static void main(String[] args) throws Exception {
    SslContext sslCtx = null;/*from  w  w w .j  a  v a  2 s  .c om*/

    try {
        File certChainFile = new File("/Users/hyecheon/netty.cst");
        File keyFile = new File("/Users/hyecheon/privatekey.pem");
        keyFile.exists();
        sslCtx = SslContext.newServerContext(certChainFile, keyFile, "HELLO");
    } catch (SSLException e) {
        e.printStackTrace();
        System.out.println("Can not create SSL context! \n Server will be stop!");
    }

    // Configure the server.
    EventLoopGroup bossGroup = new NioEventLoopGroup(1);
    EventLoopGroup workerGroup = new NioEventLoopGroup();
    try {
        ServerBootstrap b = new ServerBootstrap();
        b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
                .handler(new LoggingHandler(LogLevel.INFO))
                .childHandler(new HttpSnoopServerInitializer(sslCtx));

        Channel ch = b.bind(PORT).sync().channel();

        ch.closeFuture().sync();
    } finally {
        bossGroup.shutdownGracefully();
        workerGroup.shutdownGracefully();
    }
}

---

From source file:WorldClockServer.java

License:Apache License

public void run() throws Exception {
    EventLoopGroup bossGroup = new NioEventLoopGroup();
    EventLoopGroup workerGroup = new NioEventLoopGroup();
    try {//from  ww  w  . j a v  a 2s.  c  om
        ServerBootstrap b = new ServerBootstrap();
        b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
                .childHandler(new WorldClockServerInitializer());

        b.bind(port).sync().channel().closeFuture().sync();
    } finally {
        bossGroup.shutdownGracefully();
        workerGroup.shutdownGracefully();
    }
}

---

From source file:TelnetClient.java

License:Apache License

public static void main(String args[]) throws Exception {
    // Configure SSL.
    final SslContext sslCtx;
    if (SSL) {//from  w w  w.  j a  va2s .com
        sslCtx = SslContextBuilder.forClient().trustManager(InsecureTrustManagerFactory.INSTANCE).build();
    } else {
        sslCtx = null;
    }

    EventLoopGroup group = new NioEventLoopGroup();
    try {
        Bootstrap b = new Bootstrap();
        b.group(group).channel(NioSocketChannel.class).handler(new TelnetClientInitializer(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));

        // Sends the received line to the server.
        while (true) {
            lastWriteFuture = ch.writeAndFlush("req" + "\r\n");
        }

        // If user typed the 'bye' command, wait until the server closes
        // the connection.

        // ch.closeFuture().sync();

        // Wait until all messages are flushed before closing the channel.
        /*if (lastWriteFuture != null) {
        lastWriteFuture.sync();
        }*/
    } finally {
        group.shutdownGracefully();
    }
}

---

From source file:HttpUploadServer.java

License:Apache License

public void run() throws Exception {
    EventLoopGroup bossGroup = new NioEventLoopGroup();
    EventLoopGroup workerGroup = new NioEventLoopGroup();
    try {/*  ww w.  ja va  2  s .  c  om*/
        ServerBootstrap b = new ServerBootstrap();
        b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
                .childHandler(new HttpUploadServerInitializer());

        Channel ch = b.bind(port).sync().channel();
        System.out.println("HTTP Upload Server at port " + port + '.');
        System.out.println("Open your browser and navigate to http://localhost:" + port + '/');

        ch.closeFuture().sync();
    } finally {
        bossGroup.shutdownGracefully();
        workerGroup.shutdownGracefully();
    }
}

---

From source file:Http2Server.java

License:Apache License

public static void main(String... args) throws Exception {
    // Configure SSL.
    final SslContext sslCtx;
    if (SSL) {//  www  . ja va2 s . co  m
        SelfSignedCertificate ssc = new SelfSignedCertificate();
        sslCtx = SslContext.newServerContext(ssc.certificate(), ssc.privateKey(), null, null,
                Arrays.asList(SelectedProtocol.HTTP_2.protocolName(), SelectedProtocol.HTTP_1_1.protocolName()),
                0, 0);
    } else {
        sslCtx = null;
    }
    // Configure the server.
    EventLoopGroup bossGroup = new NioEventLoopGroup(1);
    EventLoopGroup workerGroup = new NioEventLoopGroup(1);
    try {
        ServerBootstrap b = new ServerBootstrap();
        b.option(ChannelOption.SO_BACKLOG, 1024);
        b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
                .handler(new LoggingHandler(LogLevel.INFO)).childHandler(new Http2ServerInitializer(sslCtx));

        Channel ch = b.bind(PORT).sync().channel();

        System.err.println("Open your HTTP/2-enabled web browser and navigate to " + (SSL ? "https" : "http")
                + "://127.0.0.1:" + PORT + '/');

        ch.closeFuture().sync();
    } finally {
        bossGroup.shutdownGracefully();
        workerGroup.shutdownGracefully();
    }
}

---

From source file:HttpUploadClient.java

License:Apache License

public void run() throws Exception {
    String postSimple, postFile, get;
    if (baseUri.endsWith("/")) {
        postSimple = baseUri + "formpost";
        postFile = baseUri + "formpostmultipart";
        get = baseUri + "formget";
    } else {//from w ww. j a  v  a2s. co m
        postSimple = baseUri + "/formpost";
        postFile = baseUri + "/formpostmultipart";
        get = baseUri + "/formget";
    }
    URI uriSimple;
    try {
        uriSimple = new URI(postSimple);
    } catch (URISyntaxException e) {
        logger.log(Level.WARNING, "Invalid URI syntax", e);
        return;
    }
    String scheme = uriSimple.getScheme() == null ? "http" : uriSimple.getScheme();
    String host = uriSimple.getHost() == null ? "localhost" : uriSimple.getHost();
    int port = uriSimple.getPort();
    if (port == -1) {
        if ("http".equalsIgnoreCase(scheme)) {
            port = 80;
        } else if ("https".equalsIgnoreCase(scheme)) {
            port = 443;
        }
    }

    if (!"http".equalsIgnoreCase(scheme) && !"https".equalsIgnoreCase(scheme)) {
        logger.log(Level.WARNING, "Only HTTP(S) is supported.");
        return;
    }

    boolean ssl = "https".equalsIgnoreCase(scheme);

    URI uriFile;
    try {
        uriFile = new URI(postFile);
    } catch (URISyntaxException e) {
        logger.log(Level.WARNING, "Error: ", e);
        return;
    }
    File file = new File(filePath);
    if (!file.canRead()) {
        logger.log(Level.WARNING, "A correct path is needed");
        return;
    }

    // Configure the client.
    EventLoopGroup group = new NioEventLoopGroup();

    // setup the factory: here using a mixed memory/disk based on size threshold
    HttpDataFactory factory = new DefaultHttpDataFactory(DefaultHttpDataFactory.MINSIZE); // Disk if MINSIZE exceed

    DiskFileUpload.deleteOnExitTemporaryFile = true; // should delete file on exit (in normal exit)
    DiskFileUpload.baseDirectory = null; // system temp directory
    DiskAttribute.deleteOnExitTemporaryFile = true; // should delete file on exit (in normal exit)
    DiskAttribute.baseDirectory = null; // system temp directory

    try {
        Bootstrap b = new Bootstrap();
        b.group(group).channel(NioSocketChannel.class).handler(new HttpUploadClientIntializer(ssl));

        // Simple Get form: no factory used (not usable)
        List<Entry<String, String>> headers = formGet(b, host, port, get, uriSimple);
        if (headers == null) {
            factory.cleanAllHttpDatas();
            return;
        }

        // Simple Post form: factory used for big attributes
        List<InterfaceHttpData> bodylist = formPost(b, host, port, uriSimple, file, factory, headers);
        if (bodylist == null) {
            factory.cleanAllHttpDatas();
            return;
        }

        // Multipart Post form: factory used
        formPostMultipart(b, host, port, uriFile, factory, headers, bodylist);
    } finally {
        // Shut down executor threads to exit.
        group.shutdownGracefully();

        // Really clean all temporary files if they still exist
        factory.cleanAllHttpDatas();
    }
}

---

From source file:afred.javademo.proxy.rpc.ObjectEchoServer.java

License:Apache License

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

    EventLoopGroup bossGroup = new NioEventLoopGroup(1);
    EventLoopGroup workerGroup = new NioEventLoopGroup();
    try {//w w w.j av a  2  s  .  com
        ServerBootstrap b = new ServerBootstrap();
        b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
                .handler(new LoggingHandler(LogLevel.INFO))
                .childHandler(new ChannelInitializer<SocketChannel>() {
                    @Override
                    public void initChannel(SocketChannel ch) throws Exception {
                        ChannelPipeline p = ch.pipeline();
                        p.addLast(new ObjectEncoder(), new ObjectDecoder(ClassResolvers.cacheDisabled(null)),
                                new ObjectEchoServerHandler());
                    }
                });

        // Bind and start to accept incoming connections.
        b.bind(8080).sync().channel().closeFuture().sync();
    } finally {
        bossGroup.shutdownGracefully();
        workerGroup.shutdownGracefully();
    }
}

---

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