Example usage for io.netty.buffer ByteBuf readByte

List of usage examples for io.netty.buffer ByteBuf readByte

  1. HOME
  2. Java
  3. io.netty
  4. io.netty.buffer.*
  5. ByteBuf
  6. readByte

Introduction

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

Prototype

public abstract byte readByte();

Source Link

Document

Gets a byte at the current readerIndex and increases the readerIndex by 1 in this buffer.

Usage

From source file:io.hekate.cluster.seed.multicast.MulticastSeedNodeProvider.java

License:Apache License

private SimpleChannelInboundHandler<DatagramPacket> createListenerHandler(SeedNode thisNode,
        ByteBuf seedNodeInfo) {//  ww w.j a  v a 2 s .c  o  m
    return new SimpleChannelInboundHandler<DatagramPacket>() {
        @Override
        public void channelRead0(ChannelHandlerContext ctx, DatagramPacket msg) throws Exception {
            ByteBuf buf = msg.content();

            if (buf.readableBytes() > 4 && buf.readInt() == Utils.MAGIC_BYTES) {
                MessageTYpe msgType = MessageTYpe.values()[buf.readByte()];

                if (msgType == MessageTYpe.DISCOVERY) {
                    String cluster = decodeUtf(buf);
                    InetSocketAddress address = decodeAddress(buf);

                    if (thisNode.cluster().equals(cluster) && !address.equals(thisNode.address())) {
                        onDiscoveryMessage(address);

                        DatagramPacket response = new DatagramPacket(seedNodeInfo.copy(), msg.sender());

                        ctx.writeAndFlush(response);
                    }
                }
            }
        }
    };
}

From source file:io.hekate.cluster.seed.multicast.MulticastSeedNodeProvider.java

License:Apache License

private InetSocketAddress decodeAddress(ByteBuf buf) throws UnknownHostException {
    byte[] addrBytes = new byte[buf.readByte()];

    buf.readBytes(addrBytes);//from ww w .ja va 2  s.c o  m

    int port = buf.readInt();

    return new InetSocketAddress(InetAddress.getByAddress(addrBytes), port);
}

From source file:io.hydramq.core.type.converters.MessagePropertiesConverter.java

License:Open Source License

@Override
public MessageProperties read(final ConversionContext context, final ByteBuf buffer) {
    MessageProperties properties = new MessageProperties();
    int flags = buffer.readInt();
    if ((flags & HAS_STRING_PROPERTIES) == HAS_STRING_PROPERTIES) {
        int count = buffer.readInt();
        for (int i = 0; i < count; i++) {
            properties.setString(context.read(String.class, buffer), context.read(String.class, buffer));
        }//from  w ww .  j  a v a  2s  . co m
    }
    if ((flags & HAS_BOOLEAN_PROPERTIES) == HAS_BOOLEAN_PROPERTIES) {
        int count = buffer.readInt();
        for (int i = 0; i < count; i++) {
            properties.setBoolean(context.read(String.class, buffer), buffer.readBoolean());
        }
    }
    if ((flags & HAS_INTEGER_PROPERTIES) == HAS_INTEGER_PROPERTIES) {
        int count = buffer.readInt();
        for (int i = 0; i < count; i++) {
            properties.setInteger(context.read(String.class, buffer), buffer.readInt());
        }
    }
    if ((flags & HAS_LONG_PROPERTIES) == HAS_LONG_PROPERTIES) {
        int count = buffer.readInt();
        for (int i = 0; i < count; i++) {
            properties.setLong(context.read(String.class, buffer), buffer.readLong());
        }
    }
    if ((flags & HAS_FLOAT_PROPERTIES) == HAS_FLOAT_PROPERTIES) {
        int count = buffer.readInt();
        for (int i = 0; i < count; i++) {
            properties.setFloat(context.read(String.class, buffer), buffer.readFloat());
        }
    }
    if ((flags & HAS_DOUBLE_PROPERTIES) == HAS_DOUBLE_PROPERTIES) {
        int count = buffer.readInt();
        for (int i = 0; i < count; i++) {
            properties.setDouble(context.read(String.class, buffer), buffer.readDouble());
        }
    }
    if ((flags & HAS_BYTES_PROPERTIES) == HAS_BYTES_PROPERTIES) {
        int count = buffer.readInt();
        for (int i = 0; i < count; i++) {
            properties.setBytes(context.read(String.class, buffer), context.read(byte[].class, buffer));
        }
    }
    if ((flags & HAS_SHORT_PROPERTIES) == HAS_SHORT_PROPERTIES) {
        int count = buffer.readInt();
        for (int i = 0; i < count; i++) {
            properties.setShort(context.read(String.class, buffer), buffer.readShort());
        }
    }
    if ((flags & HAS_BYTE_PROPERTIES) == HAS_BYTE_PROPERTIES) {
        int count = buffer.readInt();
        for (int i = 0; i < count; i++) {
            properties.setByte(context.read(String.class, buffer), buffer.readByte());
        }
    }

    return properties;
}

From source file:io.lettuce.core.protocol.RedisStateMachine.java

License:Apache License

private State.Type readReplyType(ByteBuf buffer) {
    byte b = buffer.readByte();
    switch (b) {/*from ww w .j a  v  a  2 s  .  c  o  m*/
    case '+':
        return SINGLE;
    case '-':
        return ERROR;
    case ':':
        return INTEGER;
    case '$':
        return BULK;
    case '*':
        return MULTI;
    default:
        throw new RedisException("Invalid first byte: " + Byte.toString(b));
    }
}

From source file:io.liveoak.stomp.common.StompFrameDecoder.java

License:Open Source License

protected ByteBuf readUntilNull(ByteBuf buffer) {
    int nonNullBytes = buffer.bytesBefore((byte) 0x00);

    ByteBuf content = null;/*  w  w w  .  j  a  v  a2s.  c o m*/
    if (nonNullBytes == 0) {
        content = Unpooled.EMPTY_BUFFER;
    } else {
        content = buffer.readBytes(nonNullBytes);
    }

    buffer.readByte();
    return content;
}

From source file:io.liveoak.stomp.common.StompFrameDecoder.java

License:Open Source License

protected ByteBuf readUntil(ByteBuf buffer, int len) {
    if (buffer.readableBytes() < (len + 1)) {
        return null;
    }/*from  w w  w.  j  a va2 s.  c  om*/

    ByteBuf content = buffer.readBytes(len);
    buffer.readByte();
    return content;
}

From source file:io.liveoak.stomp.common.StompFrameDecoder.java

License:Open Source License

protected FrameHeader decodeHeader(ByteBuf buffer) {
    FrameHeader header = null;//from  w w w . j  a va  2 s. c  o  m

    while (header == null || buffer.isReadable()) {
        int nonNewLineBytes = buffer.bytesBefore((byte) '\n');

        if (nonNewLineBytes == 0) {
            buffer.readByte();
            break;
        }
        if (nonNewLineBytes >= 0) {
            ByteBuf line = buffer.readBytes(nonNewLineBytes);
            buffer.readByte();
            header = processHeaderLine(header, line.toString(UTF_8));
        }
    }

    return header;
}

From source file:io.moquette.parser.netty.ConnAckEncoderTest.java

License:Open Source License

@Test
public void testHeaderEncode() throws Exception {
    ConnAckMessage msg = new ConnAckMessage();

    //Exercise/*from  www  . ja  v a2s  .c  o m*/
    ByteBuf out = Unpooled.buffer();

    //Exercise
    m_encoder.encode(m_mockedContext, msg, out);

    //Verify
    assertEquals(0x20, out.readByte()); //1 byte
    assertEquals(0x02, out.readByte()); //2 byte, length
    assertEquals(ConnAckMessage.CONNECTION_ACCEPTED, out.skipBytes(1).readByte());
}

From source file:io.moquette.parser.netty.ConnectEncoderTest.java

License:Open Source License

@Test
public void testBaseHeader() throws Exception {
    ConnectMessage msg = new ConnectMessage();
    msg.setWillRetain(true);//from   w w  w .  jav a2  s  .  c  om
    msg.setWillQos((byte) 2);
    msg.setWillFlag(false);
    msg.setCleanSession(true);
    msg.setKeepAlive(512);
    ByteBuf out = Unpooled.buffer();

    //Exercise
    m_encoder.encode(m_mockedContext, msg, out);

    //Verify
    assertEquals(0x10, out.readByte()); //1 byte
    assertEquals(12, out.readByte()); //remaining length
    TestUtils.verifyString("MQIsdp", out);
    assertEquals(0x03, out.readByte()); //protocol version
    assertEquals(0x32, out.readByte()); //flags
    assertEquals(2, out.readByte()); //keepAliveTimer msb
    assertEquals(0, out.readByte()); //keepAliveTimer lsb
}

From source file:io.moquette.parser.netty.ConnectEncoderTest.java

License:Open Source License

@Test
public void testCompleteHeader() throws Exception {
    ConnectMessage msg = new ConnectMessage();
    msg.setWillRetain(true);//from w w  w .  ja  v  a  2 s  .c om
    msg.setWillQos((byte) 2);
    msg.setWillFlag(true);
    msg.setCleanSession(true);
    msg.setKeepAlive(512);

    //variable part
    msg.setClientID("ABCDEF");
    msg.setWillTopic("Topic");
    msg.setWillMessage("Message".getBytes());

    ByteBuf out = Unpooled.buffer();

    //Exercise
    m_encoder.encode(m_mockedContext, msg, out);

    //Verify
    assertEquals(0x10, out.readByte()); //1 byte
    assertEquals(36, out.readByte()); //remaining length
    TestUtils.verifyString("MQIsdp", out);
    assertEquals(0x03, out.readByte()); //protocol version
    assertEquals(0x36, out.readByte()); //flags
    assertEquals(2, out.readByte()); //keepAliveTimer msb
    assertEquals(0, out.readByte()); //keepAliveTimer lsb

    //Variable part
    TestUtils.verifyString("ABCDEF", out);
    TestUtils.verifyString("Topic", out);
    TestUtils.verifyString("Message", out);
}