Examples with EventLoopGroup io.netty.channel.EventLoopGroup used on opensource projects

Example 86 with EventLoopGroup

use of io.netty.channel.EventLoopGroup in project apn-proxy by apn-proxy.

the class TestProxyWithNetty method test.

public void test(String host, String path) {
    EventLoopGroup group = new NioEventLoopGroup();
    try {
        Bootstrap b = new Bootstrap();
        b.group(group).channel(NioSocketChannel.class).handler(new TestHttpClientChannelInitializer());
        // Make the connection attempt.
        Channel ch = b.connect("127.0.0.1", ApnProxyConfig.getConfig().getPort()).sync().channel();
        // Prepare the HTTP request.
        HttpRequest request = new DefaultHttpRequest(HttpVersion.HTTP_1_1, HttpMethod.GET, "http://" + host + path);
        request.headers().set(HttpHeaders.Names.HOST, host);
        request.headers().set(HttpHeaders.Names.CONNECTION, HttpHeaders.Values.CLOSE);
        //request.headers().set(HttpHeaders.Names.ACCEPT_ENCODING, HttpHeaders.Values.GZIP);
        // Send the HTTP request.
        ch.writeAndFlush(request);
        // Wait for the server to close the connection.
        ch.closeFuture().sync();
    } catch (InterruptedException e) {
        logger.error(e.getMessage(), e);
    } finally {
        // Shut down executor threads to exit.
        group.shutdownGracefully();
    }
}

Example 87 with EventLoopGroup

use of io.netty.channel.EventLoopGroup in project pinot by linkedin.

the class ScatterGatherTest method testSingleServer.

@Test
public void testSingleServer() throws Exception {
    MetricsRegistry registry = new MetricsRegistry();
    // Server start
    int serverPort = 7071;
    NettyTCPServer server1 = new NettyTCPServer(serverPort, new TestRequestHandlerFactory(0, 1), null);
    Thread t1 = new Thread(server1);
    t1.start();
    //Client setup
    ScheduledExecutorService timedExecutor = new ScheduledThreadPoolExecutor(1);
    ExecutorService poolExecutor = MoreExecutors.sameThreadExecutor();
    ExecutorService service = new ThreadPoolExecutor(1, 1, 1, TimeUnit.DAYS, new LinkedBlockingDeque<Runnable>());
    EventLoopGroup eventLoopGroup = new NioEventLoopGroup();
    NettyClientMetrics clientMetrics = new NettyClientMetrics(registry, "client_");
    PooledNettyClientResourceManager rm = new PooledNettyClientResourceManager(eventLoopGroup, new HashedWheelTimer(), clientMetrics);
    KeyedPoolImpl<ServerInstance, NettyClientConnection> pool = new KeyedPoolImpl<ServerInstance, NettyClientConnection>(1, 1, 300000, 1, rm, timedExecutor, poolExecutor, registry);
    rm.setPool(pool);
    ScatterGatherImpl scImpl = new ScatterGatherImpl(pool, service);
    SegmentIdSet pg = new SegmentIdSet();
    pg.addSegment(new SegmentId("0"));
    ServerInstance serverInstance1 = new ServerInstance("localhost", serverPort);
    List<ServerInstance> instances = new ArrayList<ServerInstance>();
    instances.add(serverInstance1);
    Map<ServerInstance, SegmentIdSet> pgMap = new HashMap<ServerInstance, SegmentIdSet>();
    pgMap.put(serverInstance1, pg);
    String request = "request_0";
    Map<SegmentIdSet, String> pgMapStr = new HashMap<SegmentIdSet, String>();
    pgMapStr.put(pg, request);
    ScatterGatherRequest req = new TestScatterGatherRequest(pgMap, pgMapStr);
    final ScatterGatherStats scatterGatherStats = new ScatterGatherStats();
    BrokerMetrics brokerMetrics = new BrokerMetrics(new MetricsRegistry());
    CompositeFuture<ServerInstance, ByteBuf> fut = scImpl.scatterGather(req, scatterGatherStats, brokerMetrics);
    Map<ServerInstance, ByteBuf> v = fut.get();
    ByteBuf b = v.get(serverInstance1);
    byte[] b2 = new byte[b.readableBytes()];
    b.readBytes(b2);
    String response = new String(b2);
    Assert.assertEquals(response, "response_0_0");
    Assert.assertEquals(v.size(), 1);
    server1.shutdownGracefully();
    pool.shutdown();
    service.shutdown();
    eventLoopGroup.shutdownGracefully();
}

Example 88 with EventLoopGroup

use of io.netty.channel.EventLoopGroup in project pinot by linkedin.

the class ScatterGatherTest method testMultipleServerError.

@Test
public void testMultipleServerError() throws Exception {
    MetricsRegistry registry = new MetricsRegistry();
    // Server start
    int serverPort1 = 7091;
    int serverPort2 = 7092;
    int serverPort3 = 7093;
    // error server
    int serverPort4 = 7094;
    NettyTCPServer server1 = new NettyTCPServer(serverPort1, new TestRequestHandlerFactory(0, 1), null);
    NettyTCPServer server2 = new NettyTCPServer(serverPort2, new TestRequestHandlerFactory(1, 1), null);
    NettyTCPServer server3 = new NettyTCPServer(serverPort3, new TestRequestHandlerFactory(2, 1), null);
    NettyTCPServer server4 = new NettyTCPServer(serverPort4, new TestRequestHandlerFactory(3, 1, 1000, true), null);
    Thread t1 = new Thread(server1);
    Thread t2 = new Thread(server2);
    Thread t3 = new Thread(server3);
    Thread t4 = new Thread(server4);
    t1.start();
    t2.start();
    t3.start();
    t4.start();
    //Client setup
    ScheduledExecutorService timedExecutor = new ScheduledThreadPoolExecutor(1);
    ExecutorService poolExecutor = MoreExecutors.sameThreadExecutor();
    ExecutorService service = new ThreadPoolExecutor(1, 1, 1, TimeUnit.DAYS, new LinkedBlockingDeque<Runnable>());
    EventLoopGroup eventLoopGroup = new NioEventLoopGroup();
    NettyClientMetrics clientMetrics = new NettyClientMetrics(registry, "client_");
    PooledNettyClientResourceManager rm = new PooledNettyClientResourceManager(eventLoopGroup, new HashedWheelTimer(), clientMetrics);
    KeyedPoolImpl<ServerInstance, NettyClientConnection> pool = new KeyedPoolImpl<ServerInstance, NettyClientConnection>(1, 1, 300000, 1, rm, timedExecutor, poolExecutor, registry);
    rm.setPool(pool);
    SegmentIdSet pg1 = new SegmentIdSet();
    pg1.addSegment(new SegmentId("0"));
    SegmentIdSet pg2 = new SegmentIdSet();
    pg2.addSegment(new SegmentId("1"));
    SegmentIdSet pg3 = new SegmentIdSet();
    pg3.addSegment(new SegmentId("2"));
    SegmentIdSet pg4 = new SegmentIdSet();
    pg4.addSegment(new SegmentId("3"));
    ServerInstance serverInstance1 = new ServerInstance("localhost", serverPort1);
    ServerInstance serverInstance2 = new ServerInstance("localhost", serverPort2);
    ServerInstance serverInstance3 = new ServerInstance("localhost", serverPort3);
    ServerInstance serverInstance4 = new ServerInstance("localhost", serverPort4);
    Map<ServerInstance, SegmentIdSet> pgMap = new HashMap<ServerInstance, SegmentIdSet>();
    pgMap.put(serverInstance1, pg1);
    pgMap.put(serverInstance2, pg2);
    pgMap.put(serverInstance3, pg3);
    pgMap.put(serverInstance4, pg4);
    String request1 = "request_0";
    String request2 = "request_1";
    String request3 = "request_2";
    String request4 = "request_3";
    Map<SegmentIdSet, String> pgMapStr = new HashMap<SegmentIdSet, String>();
    pgMapStr.put(pg1, request1);
    pgMapStr.put(pg2, request2);
    pgMapStr.put(pg3, request3);
    pgMapStr.put(pg4, request4);
    ScatterGatherRequest req = new TestScatterGatherRequest(pgMap, pgMapStr, new RoundRobinReplicaSelection(), ReplicaSelectionGranularity.SEGMENT_ID_SET, 0, 1000);
    ScatterGatherImpl scImpl = new ScatterGatherImpl(pool, service);
    final ScatterGatherStats scatterGatherStats = new ScatterGatherStats();
    final BrokerMetrics brokerMetrics = new BrokerMetrics(new MetricsRegistry());
    CompositeFuture<ServerInstance, ByteBuf> fut = scImpl.scatterGather(req, scatterGatherStats, brokerMetrics);
    Map<ServerInstance, ByteBuf> v = fut.get();
    //Only 3 servers return value.
    Assert.assertEquals(v.size(), 3);
    ByteBuf b = v.get(serverInstance1);
    byte[] b2 = new byte[b.readableBytes()];
    b.readBytes(b2);
    String response = new String(b2);
    Assert.assertEquals(response, "response_0_0");
    b = v.get(serverInstance2);
    b2 = new byte[b.readableBytes()];
    b.readBytes(b2);
    response = new String(b2);
    Assert.assertEquals(response, "response_1_0");
    b = v.get(serverInstance3);
    b2 = new byte[b.readableBytes()];
    b.readBytes(b2);
    response = new String(b2);
    Assert.assertEquals(response, "response_2_0");
    //No  response from 4th server
    Assert.assertNull(v.get(serverInstance4), "No response from 4th server");
    Map<ServerInstance, Throwable> errorMap = fut.getError();
    Assert.assertEquals(errorMap.size(), 1, "One error");
    Assert.assertNotNull(errorMap.get(serverInstance4), "Server4 returned timeout");
    //    System.out.println("Error is :" + errorMap.get(serverInstance4));
    Thread.sleep(3000);
    //    System.out.println("Pool Stats :" + pool.getStats());
    pool.getStats().refresh();
    Assert.assertEquals(pool.getStats().getTotalBadDestroyed(), 1, "Total Bad destroyed");
    pool.shutdown();
    service.shutdown();
    eventLoopGroup.shutdownGracefully();
    server1.shutdownGracefully();
    server2.shutdownGracefully();
    server3.shutdownGracefully();
    server4.shutdownGracefully();
}

Example 89 with EventLoopGroup

use of io.netty.channel.EventLoopGroup in project pinot by linkedin.

the class NettyCloseChannelTest method testCloseClientChannel.

@Test
public /**
   * Client sends a request. Before Server generates the response, the client closes the channel (scenario:as the client is shutting down)
   */
void testCloseClientChannel() throws Exception {
    NettyClientMetrics metric = new NettyClientMetrics(null, "abc");
    Timer timer = new HashedWheelTimer();
    String response = "dummy response";
    int port = 9089;
    CountDownLatch latch = new CountDownLatch(1);
    MyRequestHandler handler = new MyRequestHandler(response, latch);
    MyRequestHandlerFactory handlerFactory = new MyRequestHandlerFactory(handler);
    NettyTCPServer serverConn = new NettyTCPServer(port, handlerFactory, null);
    Thread serverThread = new Thread(serverConn, "ServerMain");
    serverThread.start();
    Thread.sleep(1000);
    ServerInstance server = new ServerInstance("localhost", port);
    EventLoopGroup eventLoopGroup = new NioEventLoopGroup();
    NettyTCPClientConnection clientConn = new NettyTCPClientConnection(server, eventLoopGroup, timer, metric);
    LOGGER.debug("About to connect the client !!");
    boolean connected = clientConn.connect();
    LOGGER.debug("Client connected !!");
    Assert.assertTrue(connected, "connected");
    Thread.sleep(1000);
    String request = "dummy request";
    LOGGER.debug("Sending the request !!");
    ResponseFuture serverRespFuture = clientConn.sendRequest(Unpooled.wrappedBuffer(request.getBytes()), 1L, 5000L);
    //Close the client
    clientConn.close();
    latch.countDown();
    ByteBuf serverResp = serverRespFuture.getOne();
    clientConn.close();
    serverConn.shutdownGracefully();
    Assert.assertNull(serverResp);
    Assert.assertFalse(serverRespFuture.isCancelled(), "Is Cancelled");
    Assert.assertTrue(serverRespFuture.getError() != null, "Got Exception");
    serverConn.shutdownGracefully();
    LOGGER.trace("metrics: {}", metric);
}

Example 90 with EventLoopGroup

use of io.netty.channel.EventLoopGroup in project pinot by linkedin.

the class NettyCloseChannelTest method testCloseServerChannel.

@Test
public /**
   * Client sends a request. Server closes the channel ( scenario: as it is shutting down)
   */
void testCloseServerChannel() throws Exception {
    NettyClientMetrics metric = new NettyClientMetrics(null, "abc");
    Timer timer = new HashedWheelTimer();
    int port = 9089;
    MyRequestHandler handler = new MyRequestHandler("empty", null);
    MyRequestHandlerFactory handlerFactory = new MyRequestHandlerFactory(handler);
    NettyTCPServer serverConn = new NettyCloseTCPServer(port, handlerFactory);
    Thread serverThread = new Thread(serverConn, "ServerMain");
    serverThread.start();
    Thread.sleep(1000);
    ServerInstance server = new ServerInstance("localhost", port);
    EventLoopGroup eventLoopGroup = new NioEventLoopGroup();
    NettyTCPClientConnection clientConn = new NettyTCPClientConnection(server, eventLoopGroup, timer, metric);
    LOGGER.info("About to connect the client !!");
    boolean connected = clientConn.connect();
    LOGGER.info("Client connected !!");
    Assert.assertTrue(connected, "connected");
    Thread.sleep(1000);
    String request = "dummy request";
    LOGGER.info("Sending the request !!");
    ResponseFuture serverRespFuture = clientConn.sendRequest(Unpooled.wrappedBuffer(request.getBytes()), 1L, 5000L);
    ByteBuf serverResp = serverRespFuture.getOne();
    clientConn.close();
    serverConn.shutdownGracefully();
    Assert.assertNull(serverResp);
    Assert.assertFalse(serverRespFuture.isCancelled(), "Is Cancelled");
    Assert.assertTrue(serverRespFuture.getError() != null, "Got Exception");
    LOGGER.trace("metrics: {}", metric);
}