Example usage for io.netty.buffer Unpooled buffer

Introduction

In this page you can find the example usage for io.netty.buffer Unpooled buffer.

Prototype

public static ByteBuf buffer(int initialCapacity)

Source Link

Document

Creates a new big-endian Java heap buffer with the specified capacity , which expands its capacity boundlessly on demand.

Usage

From source file:com.flysoloing.learning.network.netty.udt.echo.message.MsgEchoClientHandler.java

License:Apache License

public MsgEchoClientHandler() {
    super(false);
    final ByteBuf byteBuf = Unpooled.buffer(MsgEchoClient.SIZE);
    for (int i = 0; i < byteBuf.capacity(); i++) {
        byteBuf.writeByte((byte) i);
    }/*  ww  w. jav  a  2s  .c  om*/
    message = new UdtMessage(byteBuf);
}

From source file:com.flysoloing.learning.network.netty.udt.echo.rendezvous.MsgEchoPeerHandler.java

License:Apache License

public MsgEchoPeerHandler(final int messageSize) {
    super(false);
    final ByteBuf byteBuf = Unpooled.buffer(messageSize);
    for (int i = 0; i < byteBuf.capacity(); i++) {
        byteBuf.writeByte((byte) i);
    }/*  w ww.  j av  a2s . c o  m*/
    message = new UdtMessage(byteBuf);
}

From source file:com.flysoloing.learning.network.netty.udt.echo.rendezvousBytes.ByteEchoPeerHandler.java

License:Apache License

public ByteEchoPeerHandler(final int messageSize) {
    super(false);
    message = Unpooled.buffer(messageSize);
    for (int i = 0; i < message.capacity(); i++) {
        message.writeByte((byte) i);
    }/*from  w ww.  j a  v  a2 s  .co  m*/
}

From source file:com.ghrum.common.protocol.MessageLookupService.java

License:Apache License

/**
 * Encodes a {@link Message} into a stream
 *
 * @param message the message to encode to the buffer
 * @return a wrapped buffer that contains the header and the body of the message
 * @throws java.io.IOException/*from w w  w. j  a  v a  2s.c o  m*/
 */
@SuppressWarnings("unchecked")
protected <T extends Message> ByteBuf encode(T message) throws IOException {
    final MessageCodec<Message> codec = (MessageCodec<Message>) getCodec(message.getClass());
    if (codec == null) {
        throw new IOException("Unknown operation class: " + message.getClass());
    }
    final ByteBuf body = codec.encode(message);
    final ByteBuf header = Unpooled.buffer(3).writeByte(codec.getOpcode()).writeShort(body.capacity());
    return Unpooled.wrappedBuffer(header, body);
}

From source file:com.github.ambry.admin.AdminIntegrationTest.java

License:Open Source License

/**
 * Method to easily create a request.//from  w w w.j  a  v a  2 s  . c om
 * @param httpMethod the {@link HttpMethod} desired.
 * @param uri string representation of the desired URI.
 * @param headers any associated headers as a {@link HttpHeaders} object. Can be null.
 * @param content the content that accompanies the request. Can be null.
 * @return A {@link FullHttpRequest} object that defines the request required by the input.
 */
private FullHttpRequest buildRequest(HttpMethod httpMethod, String uri, HttpHeaders headers,
        ByteBuffer content) {
    ByteBuf contentBuf;
    if (content != null) {
        contentBuf = Unpooled.wrappedBuffer(content);
    } else {
        contentBuf = Unpooled.buffer(0);
    }
    FullHttpRequest httpRequest = new DefaultFullHttpRequest(HttpVersion.HTTP_1_1, httpMethod, uri, contentBuf);
    if (headers != null) {
        httpRequest.headers().set(headers);
    }
    return httpRequest;
}

From source file:com.github.ambry.frontend.FrontendIntegrationTest.java

License:Open Source License

@Test
public void healtCheckRequestTest() throws ExecutionException, InterruptedException, IOException {
    FullHttpRequest httpRequest = new DefaultFullHttpRequest(HttpVersion.HTTP_1_1, HttpMethod.GET,
            "/healthCheck", Unpooled.buffer(0));
    Queue<HttpObject> responseParts = nettyClient.sendRequest(httpRequest, null, null).get();
    HttpResponse response = (HttpResponse) responseParts.poll();
    assertEquals("Unexpected response status", HttpResponseStatus.OK, response.getStatus());
    ByteBuffer content = getContent(response, responseParts);
    assertEquals("GET content does not match original content", "GOOD", new String(content.array()));
}

From source file:com.github.gregwhitaker.requestreply.Client.java

License:Apache License

public void start() throws Exception {
    Publisher<ClientTcpDuplexConnection> publisher = ClientTcpDuplexConnection.create(remoteAddress,
            new NioEventLoopGroup(1));

    ClientTcpDuplexConnection duplexConnection = RxReactiveStreams.toObservable(publisher).toBlocking().last();
    ReactiveSocket reactiveSocket = DefaultReactiveSocket.fromClientConnection(duplexConnection,
            ConnectionSetupPayload.create("UTF-8", "UTF-8"), t -> t.printStackTrace());

    reactiveSocket.startAndWait();/*from   w  ww.ja v  a  2s .  com*/

    // Create an observable that emits messages at a specific interval.
    Publisher<Payload> requestStream = RxReactiveStreams.toPublisher(
            Observable.interval(1_000, TimeUnit.MILLISECONDS).onBackpressureDrop().map(i -> new Payload() {
                @Override
                public ByteBuffer getData() {
                    return ByteBuffer.wrap(("YO " + i).getBytes());
                }

                @Override
                public ByteBuffer getMetadata() {
                    return Frame.NULL_BYTEBUFFER;
                }
            }));

    final CountDownLatch latch = new CountDownLatch(Integer.MAX_VALUE);

    requestStream.subscribe(new Subscriber<Payload>() {
        @Override
        public void onSubscribe(Subscription s) {
            s.request(Long.MAX_VALUE);
        }

        @Override
        public void onNext(Payload payload) {
            ByteBuf buffer = Unpooled.buffer(payload.getData().capacity());
            buffer.writeBytes(payload.getData());

            byte[] bytes = new byte[buffer.capacity()];
            buffer.readBytes(bytes);

            System.out.println("Client Sent: " + new String(bytes));

            reactiveSocket.requestResponse(payload).subscribe(new Subscriber<Payload>() {
                @Override
                public void onSubscribe(Subscription s) {
                    s.request(Long.MAX_VALUE);
                }

                @Override
                public void onNext(Payload payload) {
                    ByteBuf buffer = Unpooled.buffer(payload.getData().capacity());
                    buffer.writeBytes(payload.getData());

                    byte[] bytes = new byte[buffer.capacity()];
                    buffer.readBytes(bytes);

                    System.out.println("Client Received: " + new String(bytes));

                    latch.countDown();
                }

                @Override
                public void onError(Throwable t) {
                    latch.countDown();
                }

                @Override
                public void onComplete() {
                    latch.countDown();
                }
            });
        }

        @Override
        public void onError(Throwable t) {

        }

        @Override
        public void onComplete() {

        }
    });

    latch.await();
    System.exit(0);
}

From source file:com.github.mrstampy.pprspray.core.receiver.AbstractChunkReceiver.java

License:Open Source License

/**
 * Rehydrate and transform./*from   w w w  . j  ava2 s .c om*/
 *
 * @param array
 *          the array
 * @return the byte[]
 * @see #setTransformer(MediaTransformer)
 */
protected byte[] rehydrateAndTransform(Set<AMC> set) {
    int size = calcSize(set);
    ByteBuf buf = Unpooled.buffer(size);

    for (AMC chunk : set) {
        buf.writeBytes(chunk.getData());
    }

    return transform(buf.array());
}

From source file:com.github.mrstampy.pprspray.core.streamer.footer.MediaFooter.java

License:Open Source License

private byte[] buildFooter() {
    ByteBuf buf = Unpooled.buffer(MediaStreamerUtils.FOOTER_LENGTH);

    buf.writeBytes(getType().eomBytes());
    buf.writeInt(getMessageHash());/* w  ww.j a va 2 s . co  m*/
    buf.writeInt(getMediaHash());

    return buf.array();
}

From source file:com.github.mrstampy.pprspray.core.streamer.MediaStreamType.java

License:Open Source License

private void setEomBytes() {
    int eomOrdinal = Integer.MAX_VALUE - ordinal();

    ByteBuf buf = Unpooled.buffer(4);
    buf.writeInt(eomOrdinal);
    eomBytes = buf.array();
}