Example usage for io.netty.buffer ByteBuf 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.moquette.parser.netty.ConnectEncoderTest.java

License:Open Source License

@Test
public void testCompleteHeaderWIthUser_password() throws Exception {
    ConnectMessage msg = new ConnectMessage();
    msg.setUserFlag(true);/*from ww  w.  j a  v  a  2 s. co  m*/
    msg.setPasswordFlag(true);
    msg.setWillRetain(true);
    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());
    msg.setUsername("Pablo");
    msg.setPassword("PBL".getBytes());

    ByteBuf out = Unpooled.buffer();

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

    //Verify
    assertEquals(0x10, out.readByte()); //1 byte
    assertEquals(48, out.readByte()); //remaining length
    TestUtils.verifyString("MQIsdp", out);
    assertEquals(0x03, out.readByte()); //protocol version
    assertEquals((byte) 0xF6, (byte) 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);
    TestUtils.verifyString("Pablo", out);//username
    TestUtils.verifyString("PBL", out);//password
}

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

License:Open Source License

@Test
public void testHeaderEncode() throws Exception {
    int messageID = 0xAABB;
    PubAckEncoder encoder = new PubAckEncoder();
    PubAckMessage msg = new PubAckMessage();
    msg.setMessageID(messageID);/*from   ww w . j a va2  s .c o m*/
    ByteBuf out = Unpooled.buffer();

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

    //Verify
    assertEquals(0x40, out.readByte()); //1 byte
    assertEquals(0x02, out.readByte()); //2 byte, length
    assertEquals((byte) 0xAA, out.readByte());
    assertEquals((byte) 0xBB, out.readByte());
}

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

License:Open Source License

@Test
public void testBadClaimMoreData() throws Exception {
    byte[] rawMessage = new byte[] { 0x30, 0x17, 0x00, 0x06, 0x2f, (byte) 0x74, 0x6f, (byte) 0x70, 0x69, 0x63,
            0x54, 0x65, (byte) 0x73, 0x74, 0x20, 0x6d, (byte) 0x79, 0x20, (byte) 0x70, 0x61, (byte) 0x79, 0x6c,
            0x6f, 0x61, 0x64 };/*  ww w  .ja v a2 s.  c  om*/

    ByteBuf msgBuf = Unpooled.buffer(25);
    msgBuf.writeBytes(rawMessage);
    msgBuf.readByte(); //to simulate the reading of messageType done by MQTTDecoder dispatcher

    //Exercise
    m_msgdec.decode(m_attrMap, msgBuf, m_results);

    assertFalse(m_results.isEmpty());
    PublishMessage message = (PublishMessage) m_results.get(0);
    assertNotNull(message);
    assertEquals("/topic", message.getTopicName());
    //        assertEquals("Test my payload", new String(message.getPayload()));
    Buffer expectedPayload = ByteBuffer.allocate(15).put("Test my payload".getBytes()).flip();
    assertEquals(expectedPayload, message.getPayload());
}

---

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

License:Open Source License

@Test
public void testHeaderEncode() throws Exception {
    int messageID = 0xAABB;
    PubRelEncoder encoder = new PubRelEncoder();
    PubRelMessage msg = new PubRelMessage();
    msg.setMessageID(messageID);/*from  w  w  w  . j  a va  2  s .  com*/
    ByteBuf out = Unpooled.buffer();

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

    //Verify
    assertEquals(0x62, out.readByte()); //1 byte. See MQTT-3.6.1-1
    assertEquals(0x02, out.readByte()); //2 byte, length
    assertEquals((byte) 0xAA, out.readByte());
    assertEquals((byte) 0xBB, out.readByte());
}

---

From source file:io.netlibs.bgp.netty.codec.RouteRefreshPacketDecoder.java

License:Apache License

/**
 * decode the REFRESH network packet. The passed channel buffer MUST point to the first packet octet AFTER the type octet.
 * /*from   w  w w  .  jav  a 2  s  .c  o  m*/
 * @param buffer
 *          the buffer containing the data.
 * 
 * @return the decoded packet or null on decoding problems. Neither RFC2918 nor RFC5291 nor RFC4271 describe an error handling procedure,
 *         so best advise is to ignore invalid packets for now.
 */

public BGPv4Packet decodeRouteRefreshPacket(ByteBuf buffer) {

    RouteRefreshPacket packet = null;

    try {
        AddressFamily af = AddressFamily.fromCode(buffer.readUnsignedShort());

        buffer.readByte(); // swallow reserved octet

        SubsequentAddressFamily saf = SubsequentAddressFamily.fromCode(buffer.readUnsignedByte());

        packet = new RouteRefreshPacket(af, saf);

        if (buffer.isReadable()) {

            // we have outbound router filter rules here
            OutboundRouteFilter orf = new OutboundRouteFilter(af, saf);

            orf.setRefreshType(ORFRefreshType.fromCode(buffer.readUnsignedByte()));

            while (buffer.isReadable()) {
                ORFType orfType = ORFType.fromCode(buffer.readUnsignedByte());
                ByteBuf entriesBuffer = Unpooled.buffer(buffer.readUnsignedShort());

                buffer.readBytes(entriesBuffer);
                orf.addAllORFEntries(decodeORFEntries(entriesBuffer, orfType));
            }

            packet.setOutboundRouteFilter(orf);

        }

    } catch (Exception e) {
        log.error("cannot decode ROUTE_REFRESH packet, suppressing it from further processing", e);
        packet = null;
    }

    return packet;
}

---

From source file:io.netlibs.bgp.netty.codec.UpdatePacketDecoder.java

License:Apache License

private ExtendedCommunityPathAttribute decodeExtendedCommunityPathAttribute(final ByteBuf buffer) {
    final ExtendedCommunityPathAttribute attr = new ExtendedCommunityPathAttribute();

    if ((buffer.readableBytes() < 8) || ((buffer.readableBytes() % 8) != 0)) {
        throw new OptionalAttributeErrorException();
    }//from  w ww  .j  a  va2  s  .  c  om

    while (buffer.isReadable()) {
        AbstractExtendedCommunityInterface extcomm;
        // we need to check whether this is a transitive or non-transitive value
        // and then determine whether we need to red the lower type byte
        byte higherType = buffer.readByte();
        byte higherTypeCompare = (byte) (higherType & ~(1 << 6));
        if (((higherType >> 6) & 1) == 0) {
            // bit 7 is not set in the byte, therefore this is a transitive type
            // clear bit 8, not interested in this value
            TransitiveExtendedCommunityType transCommType = TransitiveExtendedCommunityType
                    .fromCode((byte) (higherType & (~(3 << 6))));

            switch (transCommType) {
            case TWO_OCTET_AS_SPECIFIC:
                TransitiveTwoOctetASSpecificExtCommSubTypes twoOctASNLowerType = TransitiveTwoOctetASSpecificExtCommSubTypes
                        .fromCode(buffer.readByte());
                switch (twoOctASNLowerType) {
                case ROUTE_TARGET:
                    extcomm = new TransitiveTwoByteASNFourByteAdministratorRT((int) buffer.readShort(),
                            (long) buffer.readInt());
                    break;
                default:
                    // all non-RT types are currently unimplemented
                    extcomm = new UnknownTransitiveTwoByteASNSpecificExtendedCommunity(transCommType,
                            twoOctASNLowerType, buffer.readBytes(6).array());
                }
                break;

            case TWO_OCTET_IPv4_ADDRESS_SPECIFIC:

                TransitiveIPv4AddressSpecificExtCommSubTypes ipv4LowerType = TransitiveIPv4AddressSpecificExtCommSubTypes
                        .fromCode(buffer.readByte());

                switch (ipv4LowerType) {
                case ROUTE_TARGET:
                    try {
                        extcomm = new TransitiveIPv4AddressTwoByteAdministratorRT(
                                (Inet4Address) InetAddresses
                                        .fromLittleEndianByteArray(buffer.readBytes(4).array()),
                                (int) buffer.readShort());
                    } catch (UnknownHostException e) {
                        ByteBuf data = Unpooled.buffer();
                        data.getByte(ipv4LowerType.toCode());
                        data.readBytes(buffer.readBytes(6));
                        extcomm = new UnknownTransitiveExtendedCommunity(transCommType, data.array());
                    }
                    break;

                default:

                    // all non-RT types are currently unimplemented
                    extcomm = new UnknownTransitiveIPv4AddressSpecificExtendedCommunity(transCommType,
                            ipv4LowerType, buffer.readBytes(6).array());
                    break;

                }
                break;

            default:
                // by default, just create an unknown type, reading the subsequent
                // 7 bytes (we have already read byte 1)
                extcomm = new UnknownTransitiveExtendedCommunity(transCommType, buffer.readBytes(7).array());
            }
        } else {
            // bit 7 is set, these are non-transitive
            NonTransitiveExtendedCommunityType nonTransCommType = NonTransitiveExtendedCommunityType
                    .fromCode((byte) (higherType & (~(3 << 6))));
            // all non-transitive types are currently unimplemented
            extcomm = new UnknownNonTransitiveExtendedCommunity(nonTransCommType, buffer.readBytes(7).array());
        }
        attr.getMembers().add(extcomm);
    }
    return attr;
}

---

From source file:io.netlibs.bgp.netty.codec.UpdatePacketDecoder.java

License:Apache License

private MultiProtocolReachableNLRI decodeMpReachNlriPathAttribute(final ByteBuf buffer) {
    final MultiProtocolReachableNLRI attr = new MultiProtocolReachableNLRI();

    try {/*w ww  .  ja  v a2  s. c  o  m*/
        attr.setAddressFamily(AddressFamily.fromCode(buffer.readUnsignedShort()));
        attr.setSubsequentAddressFamily(SubsequentAddressFamily.fromCode(buffer.readUnsignedByte()));

        final int nextHopLength = buffer.readUnsignedByte();

        if (nextHopLength > 0) {
            final byte[] nextHop = new byte[nextHopLength];

            buffer.readBytes(nextHop);
            attr.setNextHopAddress(nextHop);
        }

        buffer.readByte(); // reserved

        while (buffer.isReadable()) {
            attr.getNlris().add(NLRICodec.decodeNLRI(buffer));
        }
    } catch (final RuntimeException e) {
        throw new OptionalAttributeErrorException();
    }

    return attr;
}

---

From source file:io.netlibs.bgp.netty.protocol.open.CapabilityCodec.java

License:Apache License

private static Capability decodeOutboundRouteFilteringCapability(final ByteBuf buffer) {
    final OutboundRouteFilteringCapability cap = new OutboundRouteFilteringCapability();

    assertMinimalLength(buffer, 5); // 2 octest AFI + 1 octet reserved + 1 octet SAFI + 1 octet number of (ORF type, Send/Receive) tuples

    cap.setAddressFamily(AddressFamily.fromCode(buffer.readUnsignedShort()));
    buffer.readByte();
    cap.setSubsequentAddressFamily(SubsequentAddressFamily.fromCode(buffer.readUnsignedByte()));

    final int orfs = buffer.readUnsignedByte();

    if (buffer.readableBytes() != (2 * orfs)) {
        throw new UnspecificOpenPacketException(
                "Expected " + (2 * orfs) + " octets parameter, got " + buffer.readableBytes() + " octets");
    }/*from  w w w .j  a v a2  s . c  o m*/

    try {
        cap.getFilters().put(ORFType.fromCode(buffer.readUnsignedByte()),
                ORFSendReceive.fromCode(buffer.readUnsignedByte()));
    } catch (final IllegalArgumentException e) {
        throw new UnspecificOpenPacketException(e);
    }
    return cap;
}

---

From source file:io.netlibs.bgp.netty.protocol.open.CapabilityCodec.java

License:Apache License

private static Capability decodeMultiProtocolCapability(final ByteBuf buffer) {
    final MultiProtocolCapability cap = new MultiProtocolCapability();

    assertFixedLength(buffer, BGPv4Constants.BGP_CAPABILITY_LENGTH_MULTIPROTOCOL);

    cap.setAfi(AddressFamily.fromCode(buffer.readShort()));
    buffer.readByte(); // reserved

    int safiCode = Ints.fromBytes((byte) 0, (byte) 0, (byte) 0, buffer.readByte());
    cap.setSafi(SubsequentAddressFamily.fromCode(safiCode));

    return cap;//w  ww.java2  s  .c  o  m
}

---

From source file:io.nodyn.http.HTTPParser.java

License:Apache License

protected boolean readRequestLine() {
    ByteBuf line = readLine();
    if (line == null) {
        return false;
    }//from   w w  w.java  2s  .co  m

    int space = line.indexOf(line.readerIndex(), line.readerIndex() + line.readableBytes(), (byte) ' ');
    if (space < 0) {
        setError(Error.INVALID_METHOD);
        return false;
    }

    int len = space - line.readerIndex();

    ByteBuf methodBuf = line.readSlice(len);

    String methodName = methodBuf.toString(UTF8);
    for (int i = 0; i < METHODS.length; ++i) {
        if (METHODS[i].equals(methodName)) {
            this.method = i;
            break;
        }
    }

    if (this.method == null) {
        setError(Error.INVALID_METHOD);
        return false;
    }

    if ("CONNECT".equals(methodName)) {
        this.upgrade = true;
    }

    // skip the space
    line.readByte();

    space = line.indexOf(line.readerIndex(), line.readerIndex() + line.readableBytes(), (byte) ' ');

    ByteBuf urlBuf = null;
    ByteBuf versionBuf = null;
    if (space < 0) {
        // HTTP/1.0
        urlBuf = line.readSlice(line.readableBytes());
    } else {
        len = space - line.readerIndex();
        urlBuf = line.readSlice(len);
        versionBuf = line.readSlice(line.readableBytes());
    }

    this.url = urlBuf.toString(UTF8).trim();

    if (versionBuf != null) {
        if (!readVersion(versionBuf)) {
            setError(Error.INVALID_VERSION);
            return false;
        }
    } else {
        this.versionMajor = 1;
        this.versionMinor = 0;
    }
    return true;
}

---

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