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.xxx.util.io.client.netty.EchoClientHandler.java

License:Apache License

/**
 * ?/*from  www  .  j  a  v  a 2s . c om*/
 */
public void startHeartBeatThread(final ChannelHandlerContext ctx) {
    final Timer heartBeatTimer = new Timer();
    TimerTask heartBeatTask = new TimerTask() {
        @Override
        public void run() {
            if (!ctx.channel().isWritable()) {
                heartBeatTimer.cancel();
                logger.info("Socket???");
                return;
            }
            logger.info("Socket??");
            if (headSize == EchoClient.HEAD_SIZE_8) {
                ByteBuf firstMessage = Unpooled.buffer(EchoClient.SIZE);
                firstMessage.writeBytes("00000000".getBytes());
                ctx.writeAndFlush(firstMessage);
            } else if (headSize == EchoClient.HEAD_SIZE_6) {
                ByteBuf firstMessage = Unpooled.buffer(EchoClient.SIZE);
                firstMessage.writeBytes("000000".getBytes());
                ctx.writeAndFlush(firstMessage);
            }
        }
    };
    heartBeatTimer.schedule(heartBeatTask, 5000, 5000);
}

From source file:com.yahoo.pulsar.broker.service.ServerCnxTest.java

License:Apache License

@Test(timeOut = 30000)
public void testSendCommand() throws Exception {
    resetChannel();/*w  w  w.  j  a  v  a2s.c o m*/
    setChannelConnected();

    ByteBuf clientCommand = Commands.newProducer(successTopicName, 1 /* producer id */, 1 /* request id */,
            "prod-name");
    channel.writeInbound(clientCommand);
    assertTrue(getResponse() instanceof CommandProducerSuccess);

    // test SEND success
    MessageMetadata messageMetadata = MessageMetadata.newBuilder().setPublishTime(System.currentTimeMillis())
            .setProducerName("prod-name").setSequenceId(0).build();
    ByteBuf data = Unpooled.buffer(1024);

    clientCommand = Commands.newSend(1, 0, 1, ChecksumType.None, messageMetadata, data);
    channel.writeInbound(Unpooled.copiedBuffer(clientCommand));
    clientCommand.release();

    assertTrue(getResponse() instanceof CommandSendReceipt);
    channel.finish();
}

From source file:com.yahoo.pulsar.common.compression.CommandsTest.java

License:Apache License

@Test
public void testChecksumSendCommand() throws Exception {

    // test checksum in send command
    String producerName = "prod-name";
    int sequenceId = 0;
    ByteBuf data = Unpooled.buffer(1024);
    MessageMetadata messageMetadata = MessageMetadata.newBuilder().setPublishTime(System.currentTimeMillis())
            .setProducerName(producerName).setSequenceId(sequenceId).build();
    int expectedChecksum = computeChecksum(messageMetadata, data);
    ByteBuf clientCommand = Commands.newSend(1, 0, 1, ChecksumType.Crc32c, messageMetadata, data);
    clientCommand.retain();/*w w  w .j a  v  a 2s .  co  m*/
    ByteBuffer inputBytes = clientCommand.nioBuffer();
    ByteBuf receivedBuf = Unpooled.wrappedBuffer(inputBytes);
    receivedBuf.skipBytes(4); //skip [total-size]
    int cmdSize = (int) receivedBuf.readUnsignedInt();
    receivedBuf.readerIndex(8 + cmdSize);
    int startMessagePos = receivedBuf.readerIndex();

    /*** 1. verify checksum and metadataParsing ***/
    boolean hasChecksum = Commands.hasChecksum(receivedBuf);
    int checksum = Commands.readChecksum(receivedBuf).intValue();

    // verify checksum is present
    assertTrue(hasChecksum);
    // verify checksum value
    assertEquals(expectedChecksum, checksum);
    MessageMetadata metadata = Commands.parseMessageMetadata(receivedBuf);
    // verify metadata parsing
    assertEquals(metadata.getProducerName(), producerName);

    /** 2. parseMessageMetadata should skip checksum if present **/
    receivedBuf.readerIndex(startMessagePos);
    metadata = Commands.parseMessageMetadata(receivedBuf);
    // verify metadata parsing
    assertEquals(metadata.getProducerName(), producerName);

}

From source file:com.yahoo.pulsar.utils.StatsOutputStreamTest.java

License:Apache License

@BeforeMethod
public void reset() {
    buf = Unpooled.buffer(4096);
    stream = new StatsOutputStream(buf);
}

From source file:com.zaradai.distributor.messaging.netty.handler.MessageDecoderTest.java

License:Apache License

ByteBuf createValidBuffer() {
    return Unpooled.buffer(1024);
}

From source file:com.zaradai.distributor.messaging.netty.InetSocketAddressSerializerTest.java

License:Apache License

@Test
public void shouldSerializeAndDeserialize() throws Exception {
    InetSocketAddress test = new InetSocketAddress(TEST_PORT);
    ByteBuf buffer = Unpooled.buffer(64);
    // serialize/* w w  w .ja  va2 s . c  o  m*/
    InetSocketAddressSerializer.serialize(test, buffer);
    // now deserialize
    InetSocketAddress res = InetSocketAddressSerializer.deserialize(buffer);

    assertThat(res, is(test));
}

From source file:com.zhaopeng.timeserver.netty.stick.correct.TimeClientHandler.java

License:Apache License

public void channelActive(ChannelHandlerContext ctx) {
    ByteBuf message = null;/*from w w  w.ja  v a2s  .c o  m*/
    for (int i = 0; i < 100; i++) {
        message = Unpooled.buffer(req.length);
        message.writeBytes(req);
        ctx.writeAndFlush(message);
    }
}

From source file:core.communication.threadpool.io.CallServerHandler.java

License:Apache License

@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) {
    ByteBuf reqBuf = (ByteBuf) msg;/* w w  w .j a  v  a2 s  .  c om*/
    ByteBufWrapper reqBufWrapper = new ByteBufWrapper(reqBuf);
    if (reqBufWrapper.readLong() == ServiceConstants.VERSION) {
        //?->request
        ServerStream server = stream.createServer();
        MessageRequest request = server.analyzeRequestBytes(reqBufWrapper);
        //?->response
        Handler serverHandler = HandlerFactory.createServerHandler();
        MessageResponse response = serverHandler.handlerMessage(request);
        ByteBuf respBuf = Unpooled.buffer(CallClient.SIZE);
        ByteBufWrapper respBufWrapper = new ByteBufWrapper(respBuf);
        server.buildResponseBytes(response, respBufWrapper);
        ctx.writeAndFlush(respBufWrapper.getBuffer());
    }
}

From source file:de.gandev.modjn.entity.func.ModbusError.java

License:Apache License

@Override
public ByteBuf encode() {
    ByteBuf buf = Unpooled.buffer(calculateLength());
    buf.writeByte(getFunctionCode());
    buf.writeByte(exceptionCode);

    return buf;
}

From source file:de.gandev.modjn.entity.func.response.ReadCoilsResponse.java

License:Apache License

@Override
public ByteBuf encode() {
    ByteBuf buf = Unpooled.buffer(calculateLength());
    buf.writeByte(getFunctionCode());//from  w  ww  .ja  v  a  2  s .  co  m
    buf.writeByte(byteCount);
    buf.writeBytes(coilStatus.toByteArray());

    return buf;
}