use of org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoopGroup in project pulsar by yahoo.
the class DiscoveryServiceTest method connectToService.
/**
* creates ClientHandler channel to connect and communicate with server
*
* @param serviceUrl
* @param latch
* @return
* @throws URISyntaxException
*/
public static NioEventLoopGroup connectToService(String serviceUrl, CountDownLatch latch, boolean tls) throws URISyntaxException {
NioEventLoopGroup workerGroup = new NioEventLoopGroup();
Bootstrap b = new Bootstrap();
b.group(workerGroup);
b.channel(NioSocketChannel.class);
b.handler(new ChannelInitializer<SocketChannel>() {
@Override
public void initChannel(SocketChannel ch) throws Exception {
if (tls) {
SslContextBuilder builder = SslContextBuilder.forClient();
builder.trustManager(InsecureTrustManagerFactory.INSTANCE);
X509Certificate[] certificates = SecurityUtility.loadCertificatesFromPemFile(TLS_CLIENT_CERT_FILE_PATH);
PrivateKey privateKey = SecurityUtility.loadPrivateKeyFromPemFile(TLS_CLIENT_KEY_FILE_PATH);
builder.keyManager(privateKey, (X509Certificate[]) certificates);
SslContext sslCtx = builder.build();
ch.pipeline().addLast("tls", sslCtx.newHandler(ch.alloc()));
}
ch.pipeline().addLast(new ClientHandler(latch));
}
});
URI uri = new URI(serviceUrl);
InetSocketAddress serviceAddress = new InetSocketAddress(uri.getHost(), uri.getPort());
b.connect(serviceAddress).addListener((ChannelFuture future) -> {
if (!future.isSuccess()) {
throw new IllegalStateException(future.cause());
}
});
return workerGroup;
}
use of org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoopGroup in project cradle by BingLau7.
the class EchoClient method start.
void start() throws Exception {
EventLoopGroup group = new NioEventLoopGroup();
try {
// 指定 EventLoopGroup 以处理客户端时间;需要适用于 NIO 的实现
Bootstrap b = new Bootstrap();
b.group(group).channel(NioSocketChannel.class).remoteAddress(new InetSocketAddress(host, port)).handler(new ChannelInitializer<SocketChannel>() {
protected void initChannel(SocketChannel ch) throws Exception {
ch.pipeline().addLast(new EchoClientHandler());
}
});
// 连接远程节点,阻塞等待直到连接完成
ChannelFuture f = b.connect().sync();
// 阻塞,直到 Channel 关闭
f.channel().closeFuture().sync();
} finally {
// 关闭线程池并释放所有的资源
group.shutdownGracefully().sync();
}
}
use of org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoopGroup in project cradle by BingLau7.
the class EchoServer method start.
void start() throws Exception {
// 创建 Event-LoopGroup
NioEventLoopGroup group = new NioEventLoopGroup();
try {
// 创建 Server-Bootstrap
ServerBootstrap b = new ServerBootstrap();
b.group(group).channel(NioServerSocketChannel.class).localAddress(new InetSocketAddress(port)).childHandler(new ChannelInitializer<SocketChannel>() {
protected void initChannel(SocketChannel socketChannel) throws Exception {
socketChannel.pipeline().addLast(new EchoServerHandler());
}
});
// 异步地绑定服务器;调用 sync() 方法阻塞等待直到绑定完成
ChannelFuture f = b.bind().sync();
System.out.println(EchoServer.class.getName() + " started and listen on " + f.channel().localAddress());
// 获取 Channel 的 CloseFuture,并且阻塞当前线程直到它完成
f.channel().closeFuture().sync();
} finally {
// 关闭 EventLoopGroup,释放所有的资源
group.shutdownGracefully().sync();
}
}
use of org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoopGroup in project cradle by BingLau7.
the class NettyNioServer method server.
public void server(int port) throws Exception {
final ByteBuf buf = Unpooled.unreleasableBuffer(Unpooled.copiedBuffer("Hi!\r\n", Charset.forName("UTF-8")));
// 为非阻塞模式使用 NioEventLoopGroup
NioEventLoopGroup group = new NioEventLoopGroup();
try {
// 创建 ServerBootstrap
ServerBootstrap b = new ServerBootstrap();
b.group(group).channel(NioServerSocketChannel.class).localAddress(new InetSocketAddress(port)).childHandler(new ChannelInitializer<SocketChannel>() {
@Override
public void initChannel(SocketChannel ch) throws Exception {
// 添加一个 ChannelInBoundHandlerAdapter 以拦截和处理事件
ch.pipeline().addLast(new ChannelInboundHandlerAdapter() {
@Override
public void channelActive(ChannelHandlerContext ctx) throws Exception {
// 将消息写到客户端,并添加 ChannelFutureListener 以便消息已被写完就关闭连接
ctx.writeAndFlush(buf.duplicate()).addListener(ChannelFutureListener.CLOSE);
}
});
}
});
// 绑定服务器以接收连接
ChannelFuture f = b.bind().sync();
f.channel().closeFuture().sync();
} finally {
// 释放所有资源
group.shutdownGracefully().sync();
}
}
use of org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoopGroup in project intellij-community by JetBrains.
the class BuildManager method startListening.
private int startListening() throws Exception {
EventLoopGroup group;
BuiltInServer mainServer = StartupUtil.getServer();
boolean isOwnEventLoopGroup = !Registry.is("compiler.shared.event.group", true) || mainServer == null || mainServer.getEventLoopGroup() instanceof OioEventLoopGroup;
if (isOwnEventLoopGroup) {
group = new NioEventLoopGroup(1, ConcurrencyUtil.newNamedThreadFactory("External compiler"));
} else {
group = mainServer.getEventLoopGroup();
}
final ServerBootstrap bootstrap = serverBootstrap(group);
bootstrap.childHandler(new ChannelInitializer() {
@Override
protected void initChannel(@NotNull Channel channel) throws Exception {
channel.pipeline().addLast(myChannelRegistrar, new ProtobufVarint32FrameDecoder(), new ProtobufDecoder(CmdlineRemoteProto.Message.getDefaultInstance()), new ProtobufVarint32LengthFieldPrepender(), new ProtobufEncoder(), myMessageDispatcher);
}
});
Channel serverChannel = bootstrap.bind(InetAddress.getLoopbackAddress(), 0).syncUninterruptibly().channel();
myChannelRegistrar.setServerChannel(serverChannel, isOwnEventLoopGroup);
return ((InetSocketAddress) serverChannel.localAddress()).getPort();
}
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