public static void main(String[] args) { EventLoopGroup group = new NioEventLoopGroup(); final Bootstrap cb = new Bootstrap(); cb.group(group).channel(NioSocketChannel.class); InetSocketAddress addr1 = new InetSocketAddress("10.0.0.10", 8888); InetSocketAddress addr2 = new InetSocketAddress("10.0.0.11", 8888); //连接池map ChannelPoolMap<InetSocketAddress, SimpleChannelPool> poolMap = new AbstractChannelPoolMap<InetSocketAddress, SimpleChannelPool>() { @Override protected SimpleChannelPool newPool(InetSocketAddress key) { return new SimpleChannelPool(cb.remoteAddress(key), new TestChannelPoolHandler()); } }; final SimpleChannelPool pool1 = poolMap.get(addr1);//取出連接addr1地址的连接池 final SimpleChannelPool pool2 = poolMap.get(addr2);//取出連接addr2地址的连接池 Future<Channel> f1 = pool1.acquire();//获取一个连接 f1.addListener(new FutureListener<Channel>() { @Override public void operationComplete(Future<Channel> f) { if (f.isSuccess()) { Channel ch = f.getNow(); //连接地址1的某个channel //使用连接发送消息 // ch.write(msg) //用完释放 pool1.release(ch); } } }); }
public XioConnectionPool(Bootstrap bootstrap, AsyncRetryLoopFactory retryLoopFactory) { Preconditions.checkNotNull(bootstrap); this.retryLoopFactory = Preconditions.checkNotNull(retryLoopFactory); handler = bootstrap.config().handler(); eventLoopGroup = bootstrap.config().group(); simpleChannelPool = new SimpleChannelPool(bootstrap, channelPoolHandler, channelHealthChecker); }
private HubManager(final Properties properties) { Runtime.getRuntime().addShutdownHook(new Thread(){ public void run() { try { close(); } catch (Exception x) {/* No Op */} } }); log.info(">>>>> Initializing HubManager..."); metricMetaService = new MetricsMetaAPIImpl(properties); tsdbEndpoint = TSDBEndpoint.getEndpoint(metricMetaService.getSqlWorker()); for(String url: tsdbEndpoint.getUpServers()) { final URL tsdbUrl = URLHelper.toURL(url); tsdbAddresses.add(new InetSocketAddress(tsdbUrl.getHost(), tsdbUrl.getPort())); } endpointCount = tsdbAddresses.size(); endpointSequence = new AtomicInteger(endpointCount); group = new NioEventLoopGroup(Runtime.getRuntime().availableProcessors() * 2, metricMetaService.getForkJoinPool()); bootstrap = new Bootstrap(); bootstrap .handler(channelInitializer) .group(group) .channel(NioSocketChannel.class) .option(ChannelOption.RCVBUF_ALLOCATOR, new AdaptiveRecvByteBufAllocator()) .option(ChannelOption.ALLOCATOR, BufferManager.getInstance()); final ChannelPoolHandler poolHandler = this; poolMap = new AbstractChannelPoolMap<InetSocketAddress, SimpleChannelPool>() { @Override protected SimpleChannelPool newPool(final InetSocketAddress key) { final Bootstrap b = new Bootstrap().handler(channelInitializer) .group(group) .remoteAddress(key) .channel(NioSocketChannel.class) .option(ChannelOption.RCVBUF_ALLOCATOR, new AdaptiveRecvByteBufAllocator()) .option(ChannelOption.ALLOCATOR, BufferManager.getInstance()); return new SimpleChannelPool(b, poolHandler); } }; eventExecutor = new DefaultEventExecutor(metricMetaService.getForkJoinPool()); channelGroup = new DefaultChannelGroup("MetricHubChannelGroup", eventExecutor); // tsdbAddresses.parallelStream().forEach(addr -> { // final Set<Channel> channels = Collections.synchronizedSet(new HashSet<Channel>(3)); // IntStream.of(1,2,3).parallel().forEach(i -> { // final ChannelPool pool = poolMap.get(addr); // try {channels.add(pool.acquire().awaitUninterruptibly().get()); // } catch (Exception e) {} // log.info("Acquired [{}] Channels", channels.size()); // channels.parallelStream().forEach(ch -> pool.release(ch)); // }); // }); log.info("<<<<< HubManager Initialized."); }
@Override public ChannelPool createChannelPool(InetSocketAddress key) { return new SimpleChannelPool(getBootstrap().remoteAddress(key), channelPoolHandler); }
/** * Create an uncapped {@link PoolResources} to provide automatically for {@link * ChannelPool}. * <p>An elastic {@link PoolResources} will never wait before opening a new * connection. The reuse window is limited but it cannot starve an undetermined volume * of clients using it. * * @param name the channel pool map name * * @return a new {@link PoolResources} to provide automatically for {@link * ChannelPool} */ static PoolResources elastic(String name) { return new DefaultPoolResources(name, SimpleChannelPool::new); }