Package io.netty.channel

Examples of io.netty.channel.DefaultEventLoopGroup


    private static LocalAddress localAddr;

    @BeforeClass
    public static void init() {
        // Configure a test server
        group = new DefaultEventLoopGroup();
        ServerBootstrap sb = new ServerBootstrap();
        sb.group(group)
                .channel(LocalServerChannel.class)
                .childHandler(new ChannelInitializer<LocalChannel>() {
                    @Override
View Full Code Here


    public void testConcurrentAddRemoveOutboundEvents() throws Throwable {
        testConcurrentAddRemove(false);
    }

    private static void testConcurrentAddRemove(boolean inbound) throws Exception {
        EventLoopGroup l = new DefaultEventLoopGroup(4, new DefaultExecutorServiceFactory("l"));
        EventExecutorGroup e1 = new DefaultEventExecutorGroup(4, new DefaultExecutorServiceFactory("e1"));
        EventExecutorGroup e2 = new DefaultEventExecutorGroup(4, new DefaultExecutorServiceFactory("e2"));
        EventExecutorGroup e3 = new DefaultEventExecutorGroup(4, new DefaultExecutorServiceFactory("e3"));
        EventExecutorGroup e4 = new DefaultEventExecutorGroup(4, new DefaultExecutorServiceFactory("e4"));
        EventExecutorGroup e5 = new DefaultEventExecutorGroup(4, new DefaultExecutorServiceFactory("e5"));

        final EventExecutorGroup[] groups = { e1, e2, e3, e4, e5 };
        try {
            Deque<EventType> events = new ConcurrentLinkedDeque<EventType>();
            final EventForwarder h1 = new EventForwarder();
            final EventForwarder h2 = new EventForwarder();
            final EventForwarder h3 = new EventForwarder();
            final EventForwarder h4 = new EventForwarder();
            final EventForwarder h5 = new EventForwarder();
            final EventRecorder h6 = new EventRecorder(events, inbound);

            final Channel ch = new LocalChannel();
            if (!inbound) {
                ch.config().setAutoRead(false);
            }
            ch.pipeline().addLast(e1, h1)
                    .addLast(e1, h2)
                    .addLast(e1, h3)
                    .addLast(e1, h4)
                    .addLast(e1, h5)
                    .addLast(e1, "recorder", h6);

            l.register(ch).sync().channel().connect(localAddr).sync();

            final LinkedList<EventType> expectedEvents = events(inbound, 8192);

            Throwable cause = new Throwable();

            Thread pipelineModifier = new Thread(new Runnable() {
                @Override
                public void run() {
                    Random random = new Random();

                    while (true) {
                        try {
                            Thread.sleep(100);
                        } catch (InterruptedException e) {
                            return;
                        }
                        if (!ch.isRegistered()) {
                            continue;
                        }
                        //EventForwardHandler forwardHandler = forwarders[random.nextInt(forwarders.length)];
                        ChannelHandler handler = ch.pipeline().removeFirst();
                        ch.pipeline().addBefore(groups[random.nextInt(groups.length)], "recorder",
                                UUID.randomUUID().toString(), handler);
                    }
                }
            });
            pipelineModifier.setDaemon(true);
            pipelineModifier.start();
            for (EventType event: expectedEvents) {
                switch (event) {
                    case EXCEPTION_CAUGHT:
                        ch.pipeline().fireExceptionCaught(cause);
                        break;
                    case MESSAGE_RECEIVED:
                        ch.pipeline().fireChannelRead("");
                        break;
                    case MESSAGE_RECEIVED_LAST:
                        ch.pipeline().fireChannelReadComplete();
                        break;
                    case USER_EVENT:
                        ch.pipeline().fireUserEventTriggered("");
                        break;
                    case WRITE:
                        ch.pipeline().write("");
                        break;
                    case READ:
                        ch.pipeline().read();
                        break;
                }
            }

            ch.close().sync();

            while (events.peekLast() != EventType.UNREGISTERED) {
                Thread.sleep(10);
            }

            expectedEvents.addFirst(EventType.ACTIVE);
            expectedEvents.addFirst(EventType.REGISTERED);
            expectedEvents.addLast(EventType.INACTIVE);
            expectedEvents.addLast(EventType.UNREGISTERED);

            for (;;) {
                EventType event = events.poll();
                if (event == null) {
                    Assert.assertTrue("Missing events:" + expectedEvents, expectedEvents.isEmpty());
                    break;
                }
                Assert.assertEquals(event, expectedEvents.poll());
            }
        } finally {
            l.shutdownGracefully();
            e1.shutdownGracefully();
            e2.shutdownGracefully();
            e3.shutdownGracefully();
            e4.shutdownGracefully();
            e5.shutdownGracefully();

            l.terminationFuture().sync();
            e1.terminationFuture().sync();
            e2.terminationFuture().sync();
            e3.terminationFuture().sync();
            e4.terminationFuture().sync();
            e5.terminationFuture().sync();
View Full Code Here

    private static LocalAddress localAddr;

    @BeforeClass
    public static void init() {
        // Configure a test server
        group = new DefaultEventLoopGroup();
        ServerBootstrap sb = new ServerBootstrap();
        sb.group(group)
          .channel(LocalServerChannel.class)
          .childHandler(new ChannelInitializer<LocalChannel>() {
              @Override
View Full Code Here

        }
    }

    @Test(timeout = 5000)
    public void testStagedExecution() throws Throwable {
        EventLoopGroup l = new DefaultEventLoopGroup(4, new DefaultExecutorServiceFactory("l"));
        EventExecutorGroup e1 = new DefaultEventExecutorGroup(4, new DefaultExecutorServiceFactory("e1"));
        EventExecutorGroup e2 = new DefaultEventExecutorGroup(4, new DefaultExecutorServiceFactory("e2"));
        ThreadNameAuditor h1 = new ThreadNameAuditor();
        ThreadNameAuditor h2 = new ThreadNameAuditor();
        ThreadNameAuditor h3 = new ThreadNameAuditor(true);

        Channel ch = new LocalChannel();
        // With no EventExecutor specified, h1 will be always invoked by EventLoop 'l'.
        ch.pipeline().addLast(h1);
        // h2 will be always invoked by EventExecutor 'e1'.
        ch.pipeline().addLast(e1, h2);
        // h3 will be always invoked by EventExecutor 'e2'.
        ch.pipeline().addLast(e2, h3);

        l.register(ch).sync().channel().connect(localAddr).sync();

        // Fire inbound events from all possible starting points.
        ch.pipeline().fireChannelRead("1");
        ch.pipeline().context(h1).fireChannelRead("2");
        ch.pipeline().context(h2).fireChannelRead("3");
        ch.pipeline().context(h3).fireChannelRead("4");
        // Fire outbound events from all possible starting points.
        ch.pipeline().write("5");
        ch.pipeline().context(h3).write("6");
        ch.pipeline().context(h2).write("7");
        ch.pipeline().context(h1).writeAndFlush("8").sync();

        ch.close().sync();

        // Wait until all events are handled completely.
        while (h1.outboundThreadNames.size() < 3 || h3.inboundThreadNames.size() < 3 ||
               h1.removalThreadNames.size() < 1) {
            if (h1.exception.get() != null) {
                throw h1.exception.get();
            }
            if (h2.exception.get() != null) {
                throw h2.exception.get();
            }
            if (h3.exception.get() != null) {
                throw h3.exception.get();
            }

            Thread.sleep(10);
        }

        String currentName = Thread.currentThread().getName();

        try {
            // Events should never be handled from the current thread.
            Assert.assertFalse(h1.inboundThreadNames.contains(currentName));
            Assert.assertFalse(h2.inboundThreadNames.contains(currentName));
            Assert.assertFalse(h3.inboundThreadNames.contains(currentName));
            Assert.assertFalse(h1.outboundThreadNames.contains(currentName));
            Assert.assertFalse(h2.outboundThreadNames.contains(currentName));
            Assert.assertFalse(h3.outboundThreadNames.contains(currentName));
            Assert.assertFalse(h1.removalThreadNames.contains(currentName));
            Assert.assertFalse(h2.removalThreadNames.contains(currentName));
            Assert.assertFalse(h3.removalThreadNames.contains(currentName));

            // Assert that events were handled by the correct executor.
            for (String name: h1.inboundThreadNames) {
                Assert.assertTrue(name.startsWith("l-"));
            }
            for (String name: h2.inboundThreadNames) {
                Assert.assertTrue(name.startsWith("e1-"));
            }
            for (String name: h3.inboundThreadNames) {
                Assert.assertTrue(name.startsWith("e2-"));
            }
            for (String name: h1.outboundThreadNames) {
                Assert.assertTrue(name.startsWith("l-"));
            }
            for (String name: h2.outboundThreadNames) {
                Assert.assertTrue(name.startsWith("e1-"));
            }
            for (String name: h3.outboundThreadNames) {
                Assert.assertTrue(name.startsWith("e2-"));
            }
            for (String name: h1.removalThreadNames) {
                Assert.assertTrue(name.startsWith("l-"));
            }
            for (String name: h2.removalThreadNames) {
                Assert.assertTrue(name.startsWith("e1-"));
            }
            for (String name: h3.removalThreadNames) {
                Assert.assertTrue(name.startsWith("e2-"));
            }

            // Count the number of events
            Assert.assertEquals(1, h1.inboundThreadNames.size());
            Assert.assertEquals(2, h2.inboundThreadNames.size());
            Assert.assertEquals(3, h3.inboundThreadNames.size());
            Assert.assertEquals(3, h1.outboundThreadNames.size());
            Assert.assertEquals(2, h2.outboundThreadNames.size());
            Assert.assertEquals(1, h3.outboundThreadNames.size());
            Assert.assertEquals(1, h1.removalThreadNames.size());
            Assert.assertEquals(1, h2.removalThreadNames.size());
            Assert.assertEquals(1, h3.removalThreadNames.size());
        } catch (AssertionError e) {
            System.out.println("H1I: " + h1.inboundThreadNames);
            System.out.println("H2I: " + h2.inboundThreadNames);
            System.out.println("H3I: " + h3.inboundThreadNames);
            System.out.println("H1O: " + h1.outboundThreadNames);
            System.out.println("H2O: " + h2.outboundThreadNames);
            System.out.println("H3O: " + h3.outboundThreadNames);
            System.out.println("H1R: " + h1.removalThreadNames);
            System.out.println("H2R: " + h2.removalThreadNames);
            System.out.println("H3R: " + h3.removalThreadNames);
            throw e;
        } finally {
            l.shutdownGracefully();
            e1.shutdownGracefully();
            e2.shutdownGracefully();

            l.terminationFuture().sync();
            e1.terminationFuture().sync();
            e2.terminationFuture().sync();
        }
    }
View Full Code Here

    }

    @Test(timeout = 30000)
    @Ignore
    public void testConcurrentMessageBufferAccess() throws Throwable {
        EventLoopGroup l0 = new DefaultEventLoopGroup(4, new DefaultExecutorServiceFactory("l0"));
        EventExecutorGroup e1 = new DefaultEventExecutorGroup(4, new DefaultExecutorServiceFactory("e1"));
        EventExecutorGroup e2 = new DefaultEventExecutorGroup(4, new DefaultExecutorServiceFactory("e2"));
        EventExecutorGroup e3 = new DefaultEventExecutorGroup(4, new DefaultExecutorServiceFactory("e3"));
        EventExecutorGroup e4 = new DefaultEventExecutorGroup(4, new DefaultExecutorServiceFactory("e4"));
        EventExecutorGroup e5 = new DefaultEventExecutorGroup(4, new DefaultExecutorServiceFactory("e5"));

        try {
            final MessageForwarder1 h1 = new MessageForwarder1();
            final MessageForwarder2 h2 = new MessageForwarder2();
            final MessageForwarder3 h3 = new MessageForwarder3();
            final MessageForwarder1 h4 = new MessageForwarder1();
            final MessageForwarder2 h5 = new MessageForwarder2();
            final MessageDiscarder  h6 = new MessageDiscarder();

            final Channel ch = new LocalChannel();

            // inbound:  int -> byte[4] -> int -> int -> byte[4] -> int -> /dev/null
            // outbound: int -> int -> byte[4] -> int -> int -> byte[4] -> /dev/null
            ch.pipeline().addLast(h1)
                         .addLast(e1, h2)
                         .addLast(e2, h3)
                         .addLast(e3, h4)
                         .addLast(e4, h5)
                         .addLast(e5, h6);

            l0.register(ch).sync().channel().connect(localAddr).sync();

            final int ROUNDS = 1024;
            final int ELEMS_PER_ROUNDS = 8192;
            final int TOTAL_CNT = ROUNDS * ELEMS_PER_ROUNDS;
            for (int i = 0; i < TOTAL_CNT;) {
                final int start = i;
                final int end = i + ELEMS_PER_ROUNDS;
                i = end;

                ch.eventLoop().execute(new Runnable() {
                    @Override
                    public void run() {
                        for (int j = start; j < end; j ++) {
                            ch.pipeline().fireChannelRead(Integer.valueOf(j));
                        }
                    }
                });
            }

            while (h1.inCnt < TOTAL_CNT || h2.inCnt < TOTAL_CNT || h3.inCnt < TOTAL_CNT ||
                    h4.inCnt < TOTAL_CNT || h5.inCnt < TOTAL_CNT || h6.inCnt < TOTAL_CNT) {
                if (h1.exception.get() != null) {
                    throw h1.exception.get();
                }
                if (h2.exception.get() != null) {
                    throw h2.exception.get();
                }
                if (h3.exception.get() != null) {
                    throw h3.exception.get();
                }
                if (h4.exception.get() != null) {
                    throw h4.exception.get();
                }
                if (h5.exception.get() != null) {
                    throw h5.exception.get();
                }
                if (h6.exception.get() != null) {
                    throw h6.exception.get();
                }
                Thread.sleep(10);
            }

            for (int i = 0; i < TOTAL_CNT;) {
                final int start = i;
                final int end = i + ELEMS_PER_ROUNDS;
                i = end;

                ch.pipeline().context(h6).executor().execute(new Runnable() {
                    @Override
                    public void run() {
                        for (int j = start; j < end; j ++) {
                            ch.write(Integer.valueOf(j));
                        }
                        ch.flush();
                    }
                });
            }

            while (h1.outCnt < TOTAL_CNT || h2.outCnt < TOTAL_CNT || h3.outCnt < TOTAL_CNT ||
                    h4.outCnt < TOTAL_CNT || h5.outCnt < TOTAL_CNT || h6.outCnt < TOTAL_CNT) {
                if (h1.exception.get() != null) {
                    throw h1.exception.get();
                }
                if (h2.exception.get() != null) {
                    throw h2.exception.get();
                }
                if (h3.exception.get() != null) {
                    throw h3.exception.get();
                }
                if (h4.exception.get() != null) {
                    throw h4.exception.get();
                }
                if (h5.exception.get() != null) {
                    throw h5.exception.get();
                }
                if (h6.exception.get() != null) {
                    throw h6.exception.get();
                }
                Thread.sleep(10);
            }

            ch.close().sync();
        } finally {
            l0.shutdownGracefully();
            e1.shutdownGracefully();
            e2.shutdownGracefully();
            e3.shutdownGracefully();
            e4.shutdownGracefully();
            e5.shutdownGracefully();

            l0.terminationFuture().sync();
            e1.terminationFuture().sync();
            e2.terminationFuture().sync();
            e3.terminationFuture().sync();
            e4.terminationFuture().sync();
            e5.terminationFuture().sync();
View Full Code Here

    private static final String LOCAL_ADDR_ID = "test.id";

    @Test
    public void testLocalAddressReuse() throws Exception {
        for (int i = 0; i < 2; i ++) {
            EventLoopGroup clientGroup = new DefaultEventLoopGroup();
            EventLoopGroup serverGroup = new DefaultEventLoopGroup();
            LocalAddress addr = new LocalAddress(LOCAL_ADDR_ID);
            Bootstrap cb = new Bootstrap();
            ServerBootstrap sb = new ServerBootstrap();

            cb.group(clientGroup)
              .channel(LocalChannel.class)
              .handler(new TestHandler());

            sb.group(serverGroup)
              .channel(LocalServerChannel.class)
              .childHandler(new ChannelInitializer<LocalChannel>() {
                  @Override
                  public void initChannel(LocalChannel ch) throws Exception {
                      ch.pipeline().addLast(new TestHandler());
                  }
              });

            // Start server
            Channel sc = sb.bind(addr).sync().channel();

            final CountDownLatch latch = new CountDownLatch(1);
            // Connect to the server
            final Channel cc = cb.connect(addr).sync().channel();
            cc.eventLoop().execute(new Runnable() {
                @Override
                public void run() {
                    // Send a message event up the pipeline.
                    cc.pipeline().fireChannelRead("Hello, World");
                    latch.countDown();
                }
            });
            latch.await();

            // Close the channel
            cc.close().sync();

            serverGroup.shutdownGracefully();
            clientGroup.shutdownGracefully();

            sc.closeFuture().sync();

            assertNull(String.format(
                    "Expected null, got channel '%s' for local address '%s'",
                    LocalChannelRegistry.get(addr), addr), LocalChannelRegistry.get(addr));

            serverGroup.terminationFuture().sync();
            clientGroup.terminationFuture().sync();
        }
    }
View Full Code Here

        }
    }

    @Test
    public void testWriteFailsFastOnClosedChannel() throws Exception {
        EventLoopGroup clientGroup = new DefaultEventLoopGroup();
        EventLoopGroup serverGroup = new DefaultEventLoopGroup();
        LocalAddress addr = new LocalAddress(LOCAL_ADDR_ID);
        Bootstrap cb = new Bootstrap();
        ServerBootstrap sb = new ServerBootstrap();

        cb.group(clientGroup)
                .channel(LocalChannel.class)
                .handler(new TestHandler());

        sb.group(serverGroup)
                .channel(LocalServerChannel.class)
                .childHandler(new ChannelInitializer<LocalChannel>() {
                    @Override
                    public void initChannel(LocalChannel ch) throws Exception {
                        ch.pipeline().addLast(new TestHandler());
                    }
                });

        // Start server
        sb.bind(addr).sync();

        // Connect to the server
        final Channel cc = cb.connect(addr).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)));
            // Ensure that the actual write attempt on a closed channel was never made by asserting that
            // 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();
            }
        }

        serverGroup.shutdownGracefully();
        clientGroup.shutdownGracefully();
        serverGroup.terminationFuture().sync();
        clientGroup.terminationFuture().sync();
    }
View Full Code Here

    }

    @Test
    public void testServerCloseChannelSameEventLoop() throws Exception {
        LocalAddress addr = new LocalAddress(LOCAL_ADDR_ID);
        EventLoopGroup group = new DefaultEventLoopGroup(1);
        final CountDownLatch latch = new CountDownLatch(1);
        ServerBootstrap sb = new ServerBootstrap()
                .group(group)
                .channel(LocalServerChannel.class)
                .childHandler(new SimpleChannelInboundHandler<Object>() {
                    @Override
                    protected void messageReceived(ChannelHandlerContext ctx, Object msg) throws Exception {
                        ctx.close();
                        latch.countDown();
                    }
                });
        sb.bind(addr).sync();

        Bootstrap b = new Bootstrap()
                .group(group)
                .channel(LocalChannel.class)
                .handler(new SimpleChannelInboundHandler<Object>() {
                    @Override
                    protected void messageReceived(ChannelHandlerContext ctx, Object msg) throws Exception {
                        // discard
                    }
                });
        Channel channel = b.connect(addr).sync().channel();
        channel.writeAndFlush(new Object());
        latch.await();
        group.shutdownGracefully();
        group.terminationFuture().sync();
    }
View Full Code Here

    @Test
    public void localChannelRaceCondition() throws Exception {
        final LocalAddress address = new LocalAddress("test");
        final CountDownLatch closeLatch = new CountDownLatch(1);
        final EventLoopGroup serverGroup = new DefaultEventLoopGroup(1);
        final EventLoopGroup clientGroup = new DefaultEventLoopGroup(1) {
            @Override
            protected EventLoop newChild(Executor executor, Object... args)
                    throws Exception {
                return new SingleThreadEventLoop(this, executor, true) {
                    @Override
                    protected void run() {
                        Runnable task = takeTask();
                        if (task != null) {
                            /* Only slow down the anonymous class in LocalChannel#doRegister() */
                            if (task.getClass().getEnclosingClass() == LocalChannel.class) {
                                try {
                                    closeLatch.await();
                                } catch (InterruptedException e) {
                                    throw new Error(e);
                                }
                            }
                            task.run();
                            updateLastExecutionTime();
                        }

                        if (confirmShutdown()) {
                            cleanupAndTerminate(true);
                        } else {
                            scheduleExecution();
                        }
                    }
                };
            }
        };
        try {
            ServerBootstrap sb = new ServerBootstrap();
            sb.group(serverGroup).
                    channel(LocalServerChannel.class).
                    childHandler(new ChannelInitializer<Channel>() {
                        @Override
                        protected void initChannel(Channel ch) throws Exception {
                            ch.close();
                            closeLatch.countDown();
                        }
                    }).
                    bind(address).
                    sync();
            Bootstrap bootstrap = new Bootstrap();
            bootstrap.group(clientGroup).
                    channel(LocalChannel.class).
                    handler(new ChannelInitializer<Channel>() {
                        @Override
                        protected void initChannel(Channel ch) throws Exception {
                            /* Do nothing */
                        }
                    });
            ChannelFuture future = bootstrap.connect(address);
            assertTrue("Connection should finish, not time out", future.await(200));
        } finally {
            serverGroup.shutdownGracefully(0, 0, TimeUnit.SECONDS).await();
            clientGroup.shutdownGracefully(0, 0, TimeUnit.SECONDS).await();
        }
    }
View Full Code Here

        }
    }

    @Test
    public void testReRegister() {
        EventLoopGroup group1 = new DefaultEventLoopGroup();
        EventLoopGroup group2 = new DefaultEventLoopGroup();
        LocalAddress addr = new LocalAddress(LOCAL_ADDR_ID);
        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());
                    }
                });

        // Start server
        final Channel sc = sb.bind(addr).syncUninterruptibly().channel();

        // Connect to the server
        final Channel cc = cb.connect(addr).syncUninterruptibly().channel();

        cc.deregister().syncUninterruptibly();
        // Change event loop group.
        group2.register(cc).syncUninterruptibly();
        cc.close().syncUninterruptibly();
        sc.close().syncUninterruptibly();
    }
View Full Code Here

TOP

Related Classes of io.netty.channel.DefaultEventLoopGroup

Copyright © 2018 www.massapicom. All rights reserved.
All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.