Examples with SettingsFrame org.eclipse.jetty.http2.frames.SettingsFrame used on opensource projects

Example 6 with SettingsFrame

use of org.eclipse.jetty.http2.frames.SettingsFrame in project jetty.project by eclipse.

the class FlowControlStrategyTest method testServerFlowControlOneBigWrite.

@Test
public void testServerFlowControlOneBigWrite() throws Exception {
    final int windowSize = 1536;
    final int length = 5 * windowSize;
    final CountDownLatch settingsLatch = new CountDownLatch(1);
    start(new ServerSessionListener.Adapter() {

        @Override
        public void onSettings(Session session, SettingsFrame frame) {
            settingsLatch.countDown();
        }

        @Override
        public Stream.Listener onNewStream(Stream stream, HeadersFrame requestFrame) {
            MetaData.Response metaData = new MetaData.Response(HttpVersion.HTTP_2, 200, new HttpFields());
            HeadersFrame responseFrame = new HeadersFrame(stream.getId(), metaData, null, false);
            CompletableFuture<Void> completable = new CompletableFuture<>();
            stream.headers(responseFrame, Callback.from(completable));
            completable.thenRun(() -> {
                DataFrame dataFrame = new DataFrame(stream.getId(), ByteBuffer.allocate(length), true);
                stream.data(dataFrame, Callback.NOOP);
            });
            return null;
        }
    });
    Session session = newClient(new Session.Listener.Adapter());
    Map<Integer, Integer> settings = new HashMap<>();
    settings.put(SettingsFrame.INITIAL_WINDOW_SIZE, windowSize);
    session.settings(new SettingsFrame(settings, false), Callback.NOOP);
    Assert.assertTrue(settingsLatch.await(5, TimeUnit.SECONDS));
    final CountDownLatch dataLatch = new CountDownLatch(1);
    final Exchanger<Callback> exchanger = new Exchanger<>();
    MetaData.Request metaData = newRequest("GET", new HttpFields());
    HeadersFrame requestFrame = new HeadersFrame(metaData, null, true);
    session.newStream(requestFrame, new Promise.Adapter<>(), new Stream.Listener.Adapter() {

        private AtomicInteger dataFrames = new AtomicInteger();

        @Override
        public void onData(Stream stream, DataFrame frame, Callback callback) {
            try {
                int dataFrames = this.dataFrames.incrementAndGet();
                if (dataFrames == 1 || dataFrames == 2) {
                    // Do not consume the data frame.
                    // We should then be flow-control stalled.
                    exchanger.exchange(callback);
                } else if (dataFrames == 3 || dataFrames == 4 || dataFrames == 5) {
                    // Consume totally.
                    callback.succeeded();
                    if (frame.isEndStream())
                        dataLatch.countDown();
                } else {
                    Assert.fail();
                }
            } catch (InterruptedException x) {
                callback.failed(x);
            }
        }
    });
    Callback callback = exchanger.exchange(null, 5, TimeUnit.SECONDS);
    checkThatWeAreFlowControlStalled(exchanger);
    // Consume the first chunk.
    callback.succeeded();
    callback = exchanger.exchange(null, 5, TimeUnit.SECONDS);
    checkThatWeAreFlowControlStalled(exchanger);
    // Consume the second chunk.
    callback.succeeded();
    Assert.assertTrue(dataLatch.await(5, TimeUnit.SECONDS));
}

Example 7 with SettingsFrame

use of org.eclipse.jetty.http2.frames.SettingsFrame in project jetty.project by eclipse.

the class FlowControlStrategyTest method testClientFlowControlOneBigWrite.

@Test
public void testClientFlowControlOneBigWrite() throws Exception {
    final int windowSize = 1536;
    final Exchanger<Callback> exchanger = new Exchanger<>();
    final CountDownLatch settingsLatch = new CountDownLatch(1);
    final CountDownLatch dataLatch = new CountDownLatch(1);
    start(new ServerSessionListener.Adapter() {

        @Override
        public Map<Integer, Integer> onPreface(Session session) {
            Map<Integer, Integer> settings = new HashMap<>();
            settings.put(SettingsFrame.INITIAL_WINDOW_SIZE, windowSize);
            return settings;
        }

        @Override
        public Stream.Listener onNewStream(Stream stream, HeadersFrame requestFrame) {
            MetaData.Response metaData = new MetaData.Response(HttpVersion.HTTP_2, 200, new HttpFields());
            HeadersFrame responseFrame = new HeadersFrame(stream.getId(), metaData, null, true);
            stream.headers(responseFrame, Callback.NOOP);
            return new Stream.Listener.Adapter() {

                private AtomicInteger dataFrames = new AtomicInteger();

                @Override
                public void onData(Stream stream, DataFrame frame, Callback callback) {
                    try {
                        int dataFrames = this.dataFrames.incrementAndGet();
                        if (dataFrames == 1 || dataFrames == 2) {
                            // Do not consume the data frame.
                            // We should then be flow-control stalled.
                            exchanger.exchange(callback);
                        } else if (dataFrames == 3 || dataFrames == 4 || dataFrames == 5) {
                            // Consume totally.
                            callback.succeeded();
                            if (frame.isEndStream())
                                dataLatch.countDown();
                        } else {
                            Assert.fail();
                        }
                    } catch (InterruptedException x) {
                        callback.failed(x);
                    }
                }
            };
        }
    });
    Session session = newClient(new Session.Listener.Adapter() {

        @Override
        public void onSettings(Session session, SettingsFrame frame) {
            settingsLatch.countDown();
        }
    });
    Assert.assertTrue(settingsLatch.await(5, TimeUnit.SECONDS));
    MetaData.Request metaData = newRequest("GET", new HttpFields());
    HeadersFrame requestFrame = new HeadersFrame(metaData, null, false);
    FuturePromise<Stream> streamPromise = new FuturePromise<>();
    session.newStream(requestFrame, streamPromise, null);
    Stream stream = streamPromise.get(5, TimeUnit.SECONDS);
    final int length = 5 * windowSize;
    DataFrame dataFrame = new DataFrame(stream.getId(), ByteBuffer.allocate(length), true);
    stream.data(dataFrame, Callback.NOOP);
    Callback callback = exchanger.exchange(null, 5, TimeUnit.SECONDS);
    checkThatWeAreFlowControlStalled(exchanger);
    // Consume the first chunk.
    callback.succeeded();
    callback = exchanger.exchange(null, 5, TimeUnit.SECONDS);
    checkThatWeAreFlowControlStalled(exchanger);
    // Consume the second chunk.
    callback.succeeded();
    Assert.assertTrue(dataLatch.await(5, TimeUnit.SECONDS));
}

Example 8 with SettingsFrame

use of org.eclipse.jetty.http2.frames.SettingsFrame in project jetty.project by eclipse.

the class PrefaceTest method testServerPrefaceReplySentAfterClientPreface.

@Test
public void testServerPrefaceReplySentAfterClientPreface() throws Exception {
    start(new ServerSessionListener.Adapter() {

        @Override
        public void onAccept(Session session) {
            // Send the server preface from here.
            session.settings(new SettingsFrame(new HashMap<>(), false), Callback.NOOP);
        }

        @Override
        public Stream.Listener onNewStream(Stream stream, HeadersFrame frame) {
            MetaData.Response metaData = new MetaData.Response(HttpVersion.HTTP_2, 200, new HttpFields());
            HeadersFrame responseFrame = new HeadersFrame(stream.getId(), metaData, null, true);
            stream.headers(responseFrame, Callback.NOOP);
            return null;
        }
    });
    Session session = newClient(new Session.Listener.Adapter() {

        @Override
        public Map<Integer, Integer> onPreface(Session session) {
            try {
                // Wait for the server preface (a SETTINGS frame) to
                // arrive on the client, and for its reply to be sent.
                Thread.sleep(1000);
                return null;
            } catch (InterruptedException x) {
                x.printStackTrace();
                return null;
            }
        }
    });
    CountDownLatch latch = new CountDownLatch(1);
    MetaData.Request metaData = newRequest("GET", new HttpFields());
    HeadersFrame requestFrame = new HeadersFrame(metaData, null, true);
    session.newStream(requestFrame, new Promise.Adapter<>(), new Stream.Listener.Adapter() {

        @Override
        public void onHeaders(Stream stream, HeadersFrame frame) {
            if (frame.isEndStream())
                latch.countDown();
        }
    });
    Assert.assertTrue(latch.await(5, TimeUnit.SECONDS));
}

Example 9 with SettingsFrame

use of org.eclipse.jetty.http2.frames.SettingsFrame in project jetty.project by eclipse.

the class PrefaceTest method testClientPrefaceReplySentAfterServerPreface.

@Test
public void testClientPrefaceReplySentAfterServerPreface() throws Exception {
    start(new ServerSessionListener.Adapter() {

        @Override
        public Map<Integer, Integer> onPreface(Session session) {
            Map<Integer, Integer> settings = new HashMap<>();
            settings.put(SettingsFrame.MAX_CONCURRENT_STREAMS, 128);
            return settings;
        }

        @Override
        public void onPing(Session session, PingFrame frame) {
            session.close(ErrorCode.NO_ERROR.code, null, Callback.NOOP);
        }
    });
    ByteBufferPool byteBufferPool = client.getByteBufferPool();
    try (SocketChannel socket = SocketChannel.open()) {
        socket.connect(new InetSocketAddress("localhost", connector.getLocalPort()));
        Generator generator = new Generator(byteBufferPool);
        ByteBufferPool.Lease lease = new ByteBufferPool.Lease(byteBufferPool);
        generator.control(lease, new PrefaceFrame());
        Map<Integer, Integer> clientSettings = new HashMap<>();
        clientSettings.put(SettingsFrame.ENABLE_PUSH, 0);
        generator.control(lease, new SettingsFrame(clientSettings, false));
        // The PING frame just to make sure the client stops reading.
        generator.control(lease, new PingFrame(true));
        List<ByteBuffer> buffers = lease.getByteBuffers();
        socket.write(buffers.toArray(new ByteBuffer[buffers.size()]));
        Queue<SettingsFrame> settings = new ArrayDeque<>();
        Parser parser = new Parser(byteBufferPool, new Parser.Listener.Adapter() {

            @Override
            public void onSettings(SettingsFrame frame) {
                settings.offer(frame);
            }
        }, 4096, 8192);
        ByteBuffer buffer = byteBufferPool.acquire(1024, true);
        while (true) {
            BufferUtil.clearToFill(buffer);
            int read = socket.read(buffer);
            BufferUtil.flipToFlush(buffer, 0);
            if (read < 0)
                break;
            parser.parse(buffer);
        }
        Assert.assertEquals(2, settings.size());
        SettingsFrame frame1 = settings.poll();
        Assert.assertFalse(frame1.isReply());
        SettingsFrame frame2 = settings.poll();
        Assert.assertTrue(frame2.isReply());
    }
}

Example 10 with SettingsFrame

use of org.eclipse.jetty.http2.frames.SettingsFrame in project jetty.project by eclipse.

the class PrefaceTest method testOnPrefaceNotifiedForStandardUpgrade.

@Test
public void testOnPrefaceNotifiedForStandardUpgrade() throws Exception {
    Integer maxConcurrentStreams = 128;
    AtomicReference<CountDownLatch> serverPrefaceLatch = new AtomicReference<>(new CountDownLatch(1));
    AtomicReference<CountDownLatch> serverSettingsLatch = new AtomicReference<>(new CountDownLatch(1));
    HttpConfiguration config = new HttpConfiguration();
    prepareServer(new HttpConnectionFactory(config), new HTTP2CServerConnectionFactory(config) {

        @Override
        protected ServerSessionListener newSessionListener(Connector connector, EndPoint endPoint) {
            return new ServerSessionListener.Adapter() {

                @Override
                public Map<Integer, Integer> onPreface(Session session) {
                    Map<Integer, Integer> serverSettings = new HashMap<>();
                    serverSettings.put(SettingsFrame.MAX_CONCURRENT_STREAMS, maxConcurrentStreams);
                    serverPrefaceLatch.get().countDown();
                    return serverSettings;
                }

                @Override
                public void onSettings(Session session, SettingsFrame frame) {
                    serverSettingsLatch.get().countDown();
                }

                @Override
                public Stream.Listener onNewStream(Stream stream, HeadersFrame frame) {
                    MetaData.Response response = new MetaData.Response(HttpVersion.HTTP_2, HttpStatus.OK_200, new HttpFields());
                    stream.headers(new HeadersFrame(stream.getId(), response, null, true), Callback.NOOP);
                    return null;
                }
            };
        }
    });
    server.start();
    ByteBufferPool byteBufferPool = new MappedByteBufferPool();
    try (SocketChannel socket = SocketChannel.open()) {
        socket.connect(new InetSocketAddress("localhost", connector.getLocalPort()));
        String upgradeRequest = "" + "GET /one HTTP/1.1\r\n" + "Host: localhost\r\n" + "Connection: Upgrade, HTTP2-Settings\r\n" + "Upgrade: h2c\r\n" + "HTTP2-Settings: \r\n" + "\r\n";
        ByteBuffer upgradeBuffer = ByteBuffer.wrap(upgradeRequest.getBytes(StandardCharsets.ISO_8859_1));
        socket.write(upgradeBuffer);
        // Make sure onPreface() is called on server.
        Assert.assertTrue(serverPrefaceLatch.get().await(5, TimeUnit.SECONDS));
        Assert.assertTrue(serverSettingsLatch.get().await(5, TimeUnit.SECONDS));
        // The 101 response is the reply to the client preface SETTINGS frame.
        ByteBuffer buffer = byteBufferPool.acquire(1024, true);
        http1: while (true) {
            BufferUtil.clearToFill(buffer);
            int read = socket.read(buffer);
            BufferUtil.flipToFlush(buffer, 0);
            if (read < 0)
                Assert.fail();
            int crlfs = 0;
            while (buffer.hasRemaining()) {
                byte b = buffer.get();
                if (b == '\r' || b == '\n')
                    ++crlfs;
                else
                    crlfs = 0;
                if (crlfs == 4)
                    break http1;
            }
        }
        // Reset the latches on server.
        serverPrefaceLatch.set(new CountDownLatch(1));
        serverSettingsLatch.set(new CountDownLatch(1));
        // After the 101, the client must send the connection preface.
        Generator generator = new Generator(byteBufferPool);
        ByteBufferPool.Lease lease = new ByteBufferPool.Lease(byteBufferPool);
        generator.control(lease, new PrefaceFrame());
        Map<Integer, Integer> clientSettings = new HashMap<>();
        clientSettings.put(SettingsFrame.ENABLE_PUSH, 1);
        generator.control(lease, new SettingsFrame(clientSettings, false));
        List<ByteBuffer> buffers = lease.getByteBuffers();
        socket.write(buffers.toArray(new ByteBuffer[buffers.size()]));
        // However, we should not call onPreface() again.
        Assert.assertFalse(serverPrefaceLatch.get().await(1, TimeUnit.SECONDS));
        // Although we should notify of the SETTINGS frame.
        Assert.assertTrue(serverSettingsLatch.get().await(5, TimeUnit.SECONDS));
        CountDownLatch clientSettingsLatch = new CountDownLatch(1);
        AtomicBoolean responded = new AtomicBoolean();
        Parser parser = new Parser(byteBufferPool, new Parser.Listener.Adapter() {

            @Override
            public void onSettings(SettingsFrame frame) {
                if (frame.isReply())
                    return;
                Assert.assertEquals(maxConcurrentStreams, frame.getSettings().get(SettingsFrame.MAX_CONCURRENT_STREAMS));
                clientSettingsLatch.countDown();
            }

            @Override
            public void onHeaders(HeadersFrame frame) {
                if (frame.isEndStream())
                    responded.set(true);
            }
        }, 4096, 8192);
        // HTTP/2 parsing.
        while (true) {
            parser.parse(buffer);
            if (responded.get())
                break;
            BufferUtil.clearToFill(buffer);
            int read = socket.read(buffer);
            BufferUtil.flipToFlush(buffer, 0);
            if (read < 0)
                Assert.fail();
        }
        Assert.assertTrue(clientSettingsLatch.await(5, TimeUnit.SECONDS));
    }
}