Examples with Generator org.eclipse.jetty.http2.generator.Generator used on opensource projects

Example 11 with Generator

use of org.eclipse.jetty.http2.generator.Generator in project jetty.project by eclipse.

the class SettingsGenerateParseTest method testGenerateParseOneByteAtATime.

@Test
public void testGenerateParseOneByteAtATime() throws Exception {
    SettingsGenerator generator = new SettingsGenerator(new HeaderGenerator());
    final List<SettingsFrame> frames = new ArrayList<>();
    Parser parser = new Parser(byteBufferPool, new Parser.Listener.Adapter() {

        @Override
        public void onSettings(SettingsFrame frame) {
            frames.add(frame);
        }
    }, 4096, 8192);
    Map<Integer, Integer> settings1 = new HashMap<>();
    int key = 13;
    Integer value = 17;
    settings1.put(key, value);
    // Iterate a few times to be sure generator and parser are properly reset.
    for (int i = 0; i < 2; ++i) {
        ByteBufferPool.Lease lease = new ByteBufferPool.Lease(byteBufferPool);
        generator.generateSettings(lease, settings1, true);
        frames.clear();
        for (ByteBuffer buffer : lease.getByteBuffers()) {
            while (buffer.hasRemaining()) {
                parser.parse(ByteBuffer.wrap(new byte[] { buffer.get() }));
            }
        }
        Assert.assertEquals(1, frames.size());
        SettingsFrame frame = frames.get(0);
        Map<Integer, Integer> settings2 = frame.getSettings();
        Assert.assertEquals(1, settings2.size());
        Assert.assertEquals(value, settings2.get(key));
        Assert.assertTrue(frame.isReply());
    }
}

Example 12 with Generator

use of org.eclipse.jetty.http2.generator.Generator in project jetty.project by eclipse.

the class SettingsGenerateParseTest method testGenerateParse.

private List<SettingsFrame> testGenerateParse(Map<Integer, Integer> settings) {
    SettingsGenerator generator = new SettingsGenerator(new HeaderGenerator());
    final List<SettingsFrame> frames = new ArrayList<>();
    Parser parser = new Parser(byteBufferPool, new Parser.Listener.Adapter() {

        @Override
        public void onSettings(SettingsFrame frame) {
            frames.add(frame);
        }
    }, 4096, 8192);
    // Iterate a few times to be sure generator and parser are properly reset.
    for (int i = 0; i < 2; ++i) {
        ByteBufferPool.Lease lease = new ByteBufferPool.Lease(byteBufferPool);
        generator.generateSettings(lease, settings, true);
        frames.clear();
        for (ByteBuffer buffer : lease.getByteBuffers()) {
            while (buffer.hasRemaining()) {
                parser.parse(buffer);
            }
        }
    }
    return frames;
}

Example 13 with Generator

use of org.eclipse.jetty.http2.generator.Generator 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 14 with Generator

use of org.eclipse.jetty.http2.generator.Generator 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));
    }
}

Example 15 with Generator

use of org.eclipse.jetty.http2.generator.Generator in project jetty.project by eclipse.

the class HTTP2ClientConnectionFactory method newConnection.

@Override
public Connection newConnection(EndPoint endPoint, Map<String, Object> context) throws IOException {
    HTTP2Client client = (HTTP2Client) context.get(CLIENT_CONTEXT_KEY);
    ByteBufferPool byteBufferPool = (ByteBufferPool) context.get(BYTE_BUFFER_POOL_CONTEXT_KEY);
    Executor executor = (Executor) context.get(EXECUTOR_CONTEXT_KEY);
    Scheduler scheduler = (Scheduler) context.get(SCHEDULER_CONTEXT_KEY);
    Session.Listener listener = (Session.Listener) context.get(SESSION_LISTENER_CONTEXT_KEY);
    @SuppressWarnings("unchecked") Promise<Session> promise = (Promise<Session>) context.get(SESSION_PROMISE_CONTEXT_KEY);
    Generator generator = new Generator(byteBufferPool);
    FlowControlStrategy flowControl = client.getFlowControlStrategyFactory().newFlowControlStrategy();
    HTTP2ClientSession session = new HTTP2ClientSession(scheduler, endPoint, generator, listener, flowControl);
    Parser parser = new Parser(byteBufferPool, session, 4096, 8192);
    HTTP2ClientConnection connection = new HTTP2ClientConnection(client, byteBufferPool, executor, endPoint, parser, session, client.getInputBufferSize(), promise, listener);
    connection.addListener(connectionListener);
    return customize(connection, context);
}