Example usage for io.netty.buffer ByteBuf writeBytes

Introduction

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

Prototype

public abstract ByteBuf writeBytes(ByteBuffer src);

Source Link

Document

Transfers the specified source buffer's data to this buffer starting at the current writerIndex until the source buffer's position reaches its limit, and increases the writerIndex by the number of the transferred bytes.

Usage

From source file:com.gemstone.gemfire.internal.redis.Coder.java

License:Apache License

public static ByteBuf getBulkStringArrayResponseOfValues(ByteBufAllocator alloc, Collection<?> items) {
    Iterator<?> it = items.iterator();
    ByteBuf response = alloc.buffer();// w  w w  . jav a2  s  .co m
    response.writeByte(Coder.ARRAY_ID);
    ByteBuf tmp = alloc.buffer();
    int size = 0;
    while (it.hasNext()) {
        Object next = it.next();
        ByteArrayWrapper nextWrapper = null;
        if (next instanceof Entry) {
            try {
                nextWrapper = (ByteArrayWrapper) ((Entry<?, ?>) next).getValue();
            } catch (EntryDestroyedException e) {
                continue;
            }
        } else if (next instanceof Struct) {
            nextWrapper = (ByteArrayWrapper) ((Struct) next).getFieldValues()[1];
        }
        if (nextWrapper != null) {
            tmp.writeByte(Coder.BULK_STRING_ID);
            tmp.writeBytes(intToBytes(nextWrapper.length()));
            tmp.writeBytes(Coder.CRLFar);
            tmp.writeBytes(nextWrapper.toBytes());
            tmp.writeBytes(Coder.CRLFar);
        } else {
            tmp.writeBytes(Coder.bNIL);
        }
        size++;
    }

    response.writeBytes(intToBytes(size));
    response.writeBytes(Coder.CRLFar);
    response.writeBytes(tmp);

    tmp.release();

    return response;
}

---

From source file:com.gemstone.gemfire.internal.redis.Coder.java

License:Apache License

public static ByteBuf zRangeResponse(ByteBufAllocator alloc, Collection<?> list, boolean withScores) {
    if (list.isEmpty())
        return Coder.getEmptyArrayResponse(alloc);

    ByteBuf buffer = alloc.buffer();/* ww w  .ja  v  a  2s .c  o m*/
    buffer.writeByte(Coder.ARRAY_ID);
    ByteBuf tmp = alloc.buffer();
    int size = 0;

    for (Object entry : list) {
        ByteArrayWrapper key;
        DoubleWrapper score;
        if (entry instanceof Entry) {
            try {
                key = (ByteArrayWrapper) ((Entry<?, ?>) entry).getKey();
                score = (DoubleWrapper) ((Entry<?, ?>) entry).getValue();
            } catch (EntryDestroyedException e) {
                continue;
            }
        } else {
            Object[] fieldVals = ((Struct) entry).getFieldValues();
            key = (ByteArrayWrapper) fieldVals[0];
            score = (DoubleWrapper) fieldVals[1];
        }
        byte[] byteAr = key.toBytes();
        tmp.writeByte(Coder.BULK_STRING_ID);
        tmp.writeBytes(intToBytes(byteAr.length));
        tmp.writeBytes(Coder.CRLFar);
        tmp.writeBytes(byteAr);
        tmp.writeBytes(Coder.CRLFar);
        size++;
        if (withScores) {
            String scoreString = score.toString();
            byte[] scoreAr = stringToBytes(scoreString);
            tmp.writeByte(Coder.BULK_STRING_ID);
            tmp.writeBytes(intToBytes(scoreString.length()));
            tmp.writeBytes(Coder.CRLFar);
            tmp.writeBytes(scoreAr);
            tmp.writeBytes(Coder.CRLFar);
            size++;
        }
    }

    buffer.writeBytes(intToBytes(size));
    buffer.writeBytes(Coder.CRLFar);
    buffer.writeBytes(tmp);

    tmp.release();

    return buffer;
}

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From source file:com.gemstone.gemfire.internal.redis.Coder.java

License:Apache License

public static ByteBuf getArrayOfNils(ByteBufAllocator alloc, int length) {
    ByteBuf response = alloc.buffer();
    response.writeByte(Coder.ARRAY_ID);/*from   w w w .j  a v a 2 s . c  o m*/
    response.writeBytes(intToBytes(length));
    response.writeBytes(Coder.CRLFar);

    for (int i = 0; i < length; i++)
        response.writeBytes(bNIL);

    return response;
}

---

From source file:com.gemstone.gemfire.internal.redis.executor.sortedset.ZRangeByLexExecutor.java

License:Apache License

private final ByteBuf getCustomBulkStringArrayResponse(Collection<ByteArrayWrapper> items,
        ExecutionHandlerContext context) {
    Iterator<ByteArrayWrapper> it = items.iterator();
    ByteBuf response = context.getByteBufAllocator().buffer();
    response.writeByte(Coder.ARRAY_ID);/*from w w  w .j  a v  a 2  s  .com*/
    response.writeBytes(Coder.intToBytes(items.size()));
    response.writeBytes(Coder.CRLFar);

    while (it.hasNext()) {
        ByteArrayWrapper next = it.next();
        byte[] byteAr = next.toBytes();
        response.writeByte(Coder.BULK_STRING_ID);
        response.writeBytes(Coder.intToBytes(byteAr.length));
        response.writeBytes(Coder.CRLFar);
        response.writeBytes(byteAr);
        response.writeBytes(Coder.CRLFar);
    }

    return response;
}

---

From source file:com.gemstone.gemfire.internal.redis.executor.TimeExecutor.java

License:Apache License

@Override
public void executeCommand(Command command, ExecutionHandlerContext context) {
    long timeStamp = System.currentTimeMillis();
    long seconds = timeStamp / 1000;
    long microSeconds = (timeStamp - (seconds * 1000)) * 1000;
    byte[] secAr = Coder.longToBytes(seconds);
    byte[] micAr = Coder.longToBytes(microSeconds);

    ByteBuf response = context.getByteBufAllocator().buffer(50);
    response.writeByte(Coder.ARRAY_ID);/* w w  w . jav a  2 s.co  m*/
    response.writeByte(50); // #2
    response.writeBytes(Coder.CRLFar);
    response.writeByte(Coder.BULK_STRING_ID);
    response.writeBytes(Coder.intToBytes(secAr.length));
    response.writeBytes(Coder.CRLFar);
    response.writeBytes(secAr);
    response.writeBytes(Coder.CRLFar);
    response.writeByte(Coder.BULK_STRING_ID);
    response.writeBytes(Coder.intToBytes(micAr.length));
    response.writeBytes(Coder.CRLFar);
    response.writeBytes(micAr);
    response.writeBytes(Coder.CRLFar);
    command.setResponse(response);
}

---

From source file:com.gemstone.gemfire.internal.redis.executor.transactions.ExecExecutor.java

License:Apache License

private ByteBuf constructResponseExec(ExecutionHandlerContext context) {
    Queue<Command> cQ = context.getTransactionQueue();
    ByteBuf response = context.getByteBufAllocator().buffer();
    response.writeByte(Coder.ARRAY_ID);//  w w w  .jav  a 2 s  . c o  m
    response.writeBytes(Coder.intToBytes(cQ.size()));
    response.writeBytes(Coder.CRLFar);

    for (Command c : cQ) {
        ByteBuf r = c.getResponse();
        response.writeBytes(r);
    }
    return response;
}

---

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  w w  .j  a v  a2s . co  m

    // 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.jrialland.ajpclient.impl.ForwardImpl.java

License:Apache License

protected static void sendRequest(final Channel channel, final ForwardRequest request) throws IOException {

    // start by writing message payload, header will be appended afterwards
    final ByteArrayOutputStream baos = new ByteArrayOutputStream(MAX_MESSAGE_SIZE);
    final DataOutputStream tmp = new DataOutputStream(baos);

    // request type
    tmp.writeByte(PREFIX_FORWARD_REQUEST);

    // payload/*from w ww  . ja v  a2 s  .c o m*/
    tmp.writeByte(request.getMethod().getCode());
    writeString(request.getProtocol(), tmp);
    writeString(request.getRequestUri(), tmp);
    writeString(request.getRemoteAddress(), tmp);
    writeString(request.getRemoteHost(), tmp);
    writeString(request.getServerName(), tmp);
    tmp.writeShort(request.getServerPort());
    tmp.writeBoolean(request.isSsl());
    tmp.writeShort(request.getHeaders().size());

    // headers
    for (final Header header : request.getHeaders()) {
        final Integer code = RequestHeader.getKeyCode(header.getKey());
        if (code == null) {
            writeString(header.getKey(), tmp);
        } else {
            tmp.writeShort(code);
        }
        writeString(header.getValue(), tmp);
    }

    // attributes
    for (final Entry<Attribute, String> attr : request.getAttributes().entrySet()) {
        tmp.writeByte(attr.getKey().getCode());
        writeString(attr.getValue(), tmp);
    }

    // request terminator
    tmp.write(REQUEST_TERMINATOR);
    tmp.flush();

    // now prepare the whole message
    final byte[] data = baos.toByteArray();

    if (data.length + 4 > MAX_MESSAGE_SIZE) {
        throw new IllegalArgumentException("Message size is larger than " + MAX_MESSAGE_SIZE + " bytes.");
    }

    final ByteBuf buf = Buffers.makeBuffer(4 + data.length);
    buf.writeBytes(CLIENT_MAGIC);
    buf.writeShort(data.length);
    buf.writeBytes(data);

    channel.writeAndFlush(buf);
    getLog().debug(
            "Sent : FORWARDREQUEST (" + PREFIX_FORWARD_REQUEST + "), payload size = " + data.length + " bytes");

    final InputStream requestBody = request.getRequestBody();
    if (requestBody != null) {
        sendChunk(true, requestBody, MAX_SEND_CHUNK_SIZE, channel);
    }
}

---

From source file:com.github.lburgazzoli.quickfixj.transport.netty.codec.NettyMessageEncoder.java

License:Apache License

/**
 *
 * @param ctx// ww  w  . j av a2s .  c  o m
 * @param msg
 * @param out
 * @return
 * @throws Exception
 */
@Override
protected void encode(ChannelHandlerContext ctx, byte[] msg, ByteBuf out) throws Exception {
    if (msg.length != 0) {
        out.writeBytes(msg);
    }
}

---

From source file:com.github.milenkovicm.kafka.CrcTest.java

License:Apache License

@Test
public void test_crc6() {
    ByteBuf buf = getByteBuf(4090);/*from w  w  w  .  java 2  s  . c o m*/
    long crc = calculateCrc(buf);
    ByteBuf buf1 = getByteBuf(18);
    buf1.writeBytes(buf);
    System.out.println(crc);
    Assert.assertEquals(crc, calculateJCrc(buf1, 18));
}

---

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