Examples with ResponseChannel org.apache.hc.core5.http.nio.ResponseChannel used on opensource projects

Example 1 with ResponseChannel

use of org.apache.hc.core5.http.nio.ResponseChannel in project httpcomponents-core by apache.

the class EchoHandler method handleRequest.

@Override
public void handleRequest(final HttpRequest request, final EntityDetails entityDetails, final ResponseChannel responseChannel, final HttpContext context) throws HttpException, IOException {
    final HttpResponse response = new BasicHttpResponse(HttpStatus.SC_OK);
    responseChannel.sendResponse(response, entityDetails, context);
}

Example 2 with ResponseChannel

use of org.apache.hc.core5.http.nio.ResponseChannel in project httpcomponents-core by apache.

the class H2IntegrationTest method testPrematureResponse.

@Test
public void testPrematureResponse() throws Exception {
    server.register("*", new Supplier<AsyncServerExchangeHandler>() {

        @Override
        public AsyncServerExchangeHandler get() {
            return new AsyncServerExchangeHandler() {

                private final AtomicReference<AsyncResponseProducer> responseProducer = new AtomicReference<>();

                @Override
                public void updateCapacity(final CapacityChannel capacityChannel) throws IOException {
                    capacityChannel.update(Integer.MAX_VALUE);
                }

                @Override
                public void consume(final ByteBuffer src) throws IOException {
                }

                @Override
                public void streamEnd(final List<? extends Header> trailers) throws HttpException, IOException {
                }

                @Override
                public void handleRequest(final HttpRequest request, final EntityDetails entityDetails, final ResponseChannel responseChannel, final HttpContext context) throws HttpException, IOException {
                    final AsyncResponseProducer producer;
                    final Header h = request.getFirstHeader("password");
                    if (h != null && "secret".equals(h.getValue())) {
                        producer = new BasicResponseProducer(HttpStatus.SC_OK, "All is well");
                    } else {
                        producer = new BasicResponseProducer(HttpStatus.SC_UNAUTHORIZED, "You shall not pass");
                    }
                    responseProducer.set(producer);
                    producer.sendResponse(responseChannel, context);
                }

                @Override
                public int available() {
                    final AsyncResponseProducer producer = this.responseProducer.get();
                    return producer.available();
                }

                @Override
                public void produce(final DataStreamChannel channel) throws IOException {
                    final AsyncResponseProducer producer = this.responseProducer.get();
                    producer.produce(channel);
                }

                @Override
                public void failed(final Exception cause) {
                }

                @Override
                public void releaseResources() {
                }
            };
        }
    });
    final InetSocketAddress serverEndpoint = server.start();
    client.start();
    final Future<ClientSessionEndpoint> connectFuture = client.connect("localhost", serverEndpoint.getPort(), TIMEOUT);
    final ClientSessionEndpoint streamEndpoint = connectFuture.get();
    final HttpRequest request1 = new BasicHttpRequest(Method.POST, createRequestURI(serverEndpoint, "/echo"));
    final Future<Message<HttpResponse, String>> future1 = streamEndpoint.execute(new BasicRequestProducer(request1, new MultiLineEntityProducer("0123456789abcdef", 5000)), new BasicResponseConsumer<>(new StringAsyncEntityConsumer()), null);
    final Message<HttpResponse, String> result1 = future1.get(TIMEOUT.getDuration(), TIMEOUT.getTimeUnit());
    Assertions.assertNotNull(result1);
    final HttpResponse response1 = result1.getHead();
    Assertions.assertNotNull(response1);
    Assertions.assertEquals(HttpStatus.SC_UNAUTHORIZED, response1.getCode());
    Assertions.assertNotNull("You shall not pass", result1.getBody());
}

Example 3 with ResponseChannel

use of org.apache.hc.core5.http.nio.ResponseChannel in project httpcomponents-core by apache.

the class ReactiveEchoProcessor method processRequest.

@Override
public void processRequest(final HttpRequest request, final EntityDetails entityDetails, final ResponseChannel responseChannel, final HttpContext context, final Publisher<ByteBuffer> requestBody, final Callback<Publisher<ByteBuffer>> responseBodyFuture) throws HttpException, IOException {
    if (new BasicHeader(HttpHeaders.EXPECT, HeaderElements.CONTINUE).equals(request.getHeader(HttpHeaders.EXPECT))) {
        responseChannel.sendInformation(new BasicHttpResponse(100), context);
    }
    responseChannel.sendResponse(new BasicHttpResponse(200), new BasicEntityDetails(-1, ContentType.APPLICATION_OCTET_STREAM), context);
    responseBodyFuture.execute(requestBody);
}

Example 4 with ResponseChannel

use of org.apache.hc.core5.http.nio.ResponseChannel in project httpcomponents-core by apache.

the class ReactiveRandomProcessor method processRequest.

@Override
public void processRequest(final HttpRequest request, final EntityDetails entityDetails, final ResponseChannel responseChannel, final HttpContext context, final Publisher<ByteBuffer> requestBody, final Callback<Publisher<ByteBuffer>> responseBodyCallback) throws HttpException, IOException {
    final String method = request.getMethod();
    if (!"GET".equalsIgnoreCase(method) && !"HEAD".equalsIgnoreCase(method) && !"POST".equalsIgnoreCase(method) && !"PUT".equalsIgnoreCase(method)) {
        throw new MethodNotSupportedException(method + " not supported by " + getClass().getName());
    }
    final URI uri;
    try {
        uri = request.getUri();
    } catch (final URISyntaxException ex) {
        throw new ProtocolException(ex.getMessage(), ex);
    }
    final String path = uri.getPath();
    final int slash = path.lastIndexOf('/');
    if (slash != -1) {
        final String payload = path.substring(slash + 1);
        final long n;
        if (!payload.isEmpty()) {
            try {
                n = Long.parseLong(payload);
            } catch (final NumberFormatException ex) {
                throw new ProtocolException("Invalid request path: " + path);
            }
        } else {
            // random length, but make sure at least something is sent
            n = 1 + (int) (Math.random() * 79.0);
        }
        if (new BasicHeader(HttpHeaders.EXPECT, HeaderElements.CONTINUE).equals(request.getHeader(HttpHeaders.EXPECT))) {
            responseChannel.sendInformation(new BasicHttpResponse(100), context);
        }
        final HttpResponse response = new BasicHttpResponse(HttpStatus.SC_OK);
        final Flowable<ByteBuffer> stream = ReactiveTestUtils.produceStream(n);
        final String hash = ReactiveTestUtils.getStreamHash(n);
        response.addHeader("response-hash-code", hash);
        final BasicEntityDetails basicEntityDetails = new BasicEntityDetails(n, ContentType.APPLICATION_OCTET_STREAM);
        responseChannel.sendResponse(response, basicEntityDetails, context);
        responseBodyCallback.execute(stream);
    } else {
        throw new ProtocolException("Invalid request path: " + path);
    }
}

Example 5 with ResponseChannel

use of org.apache.hc.core5.http.nio.ResponseChannel in project httpcomponents-core by apache.

the class H2FullDuplexServerExample method main.

public static void main(final String[] args) throws Exception {
    int port = 8080;
    if (args.length >= 1) {
        port = Integer.parseInt(args[0]);
    }
    final IOReactorConfig config = IOReactorConfig.custom().setSoTimeout(15, TimeUnit.SECONDS).setTcpNoDelay(true).build();
    final H2Config h2Config = H2Config.custom().setPushEnabled(true).setMaxConcurrentStreams(100).build();
    final HttpAsyncServer server = H2ServerBootstrap.bootstrap().setIOReactorConfig(config).setH2Config(h2Config).setVersionPolicy(HttpVersionPolicy.FORCE_HTTP_2).setStreamListener(new H2StreamListener() {

        @Override
        public void onHeaderInput(final HttpConnection connection, final int streamId, final List<? extends Header> headers) {
            for (int i = 0; i < headers.size(); i++) {
                System.out.println(connection.getRemoteAddress() + " (" + streamId + ") << " + headers.get(i));
            }
        }

        @Override
        public void onHeaderOutput(final HttpConnection connection, final int streamId, final List<? extends Header> headers) {
            for (int i = 0; i < headers.size(); i++) {
                System.out.println(connection.getRemoteAddress() + " (" + streamId + ") >> " + headers.get(i));
            }
        }

        @Override
        public void onFrameInput(final HttpConnection connection, final int streamId, final RawFrame frame) {
        }

        @Override
        public void onFrameOutput(final HttpConnection connection, final int streamId, final RawFrame frame) {
        }

        @Override
        public void onInputFlowControl(final HttpConnection connection, final int streamId, final int delta, final int actualSize) {
        }

        @Override
        public void onOutputFlowControl(final HttpConnection connection, final int streamId, final int delta, final int actualSize) {
        }
    }).register("/echo", () -> new AsyncServerExchangeHandler() {

        ByteBuffer buffer = ByteBuffer.allocate(2048);

        CapacityChannel inputCapacityChannel;

        DataStreamChannel outputDataChannel;

        boolean endStream;

        private void ensureCapacity(final int chunk) {
            if (buffer.remaining() < chunk) {
                final ByteBuffer oldBuffer = buffer;
                oldBuffer.flip();
                buffer = ByteBuffer.allocate(oldBuffer.remaining() + (chunk > 2048 ? chunk : 2048));
                buffer.put(oldBuffer);
            }
        }

        @Override
        public void handleRequest(final HttpRequest request, final EntityDetails entityDetails, final ResponseChannel responseChannel, final HttpContext context) throws HttpException, IOException {
            final HttpResponse response = new BasicHttpResponse(HttpStatus.SC_OK);
            responseChannel.sendResponse(response, entityDetails, context);
        }

        @Override
        public void consume(final ByteBuffer src) throws IOException {
            if (buffer.position() == 0) {
                if (outputDataChannel != null) {
                    outputDataChannel.write(src);
                }
            }
            if (src.hasRemaining()) {
                ensureCapacity(src.remaining());
                buffer.put(src);
                if (outputDataChannel != null) {
                    outputDataChannel.requestOutput();
                }
            }
        }

        @Override
        public void updateCapacity(final CapacityChannel capacityChannel) throws IOException {
            if (buffer.hasRemaining()) {
                capacityChannel.update(buffer.remaining());
                inputCapacityChannel = null;
            } else {
                inputCapacityChannel = capacityChannel;
            }
        }

        @Override
        public void streamEnd(final List<? extends Header> trailers) throws IOException {
            endStream = true;
            if (buffer.position() == 0) {
                if (outputDataChannel != null) {
                    outputDataChannel.endStream();
                }
            } else {
                if (outputDataChannel != null) {
                    outputDataChannel.requestOutput();
                }
            }
        }

        @Override
        public int available() {
            return buffer.position();
        }

        @Override
        public void produce(final DataStreamChannel channel) throws IOException {
            outputDataChannel = channel;
            buffer.flip();
            if (buffer.hasRemaining()) {
                channel.write(buffer);
            }
            buffer.compact();
            if (buffer.position() == 0 && endStream) {
                channel.endStream();
            }
            final CapacityChannel capacityChannel = inputCapacityChannel;
            if (capacityChannel != null && buffer.hasRemaining()) {
                capacityChannel.update(buffer.remaining());
            }
        }

        @Override
        public void failed(final Exception cause) {
            if (!(cause instanceof SocketException)) {
                cause.printStackTrace(System.out);
            }
        }

        @Override
        public void releaseResources() {
        }
    }).create();
    Runtime.getRuntime().addShutdownHook(new Thread(() -> {
        System.out.println("HTTP server shutting down");
        server.close(CloseMode.GRACEFUL);
    }));
    server.start();
    final Future<ListenerEndpoint> future = server.listen(new InetSocketAddress(port), URIScheme.HTTP);
    final ListenerEndpoint listenerEndpoint = future.get();
    System.out.print("Listening on " + listenerEndpoint.getAddress());
    server.awaitShutdown(TimeValue.ofDays(Long.MAX_VALUE));
}