Example usage for io.netty.buffer ByteBuf readUnsignedByte

Introduction

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

Prototype

public abstract short readUnsignedByte();

Source Link

Document

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

Usage

From source file:org.opendaylight.protocol.bgp.evpn.spi.pojo.SimpleEvpnNlriRegistryTest.java

License:Open Source License

@Test
public void registryTest() {
    final ByteBuf buff = SimpleEvpnNlriRegistry.getInstance().serializeEvpn(ETHERNET_AD_ROUTE_CASE,
            Unpooled.wrappedBuffer(ROUDE_DISTIN));
    assertArrayEquals(EthADRParserTest.RESULT, ByteArray.getAllBytes(buff));
    final EvpnChoice resultModel = SimpleEvpnNlriRegistry.getInstance().serializeEvpnModel(createEthADRModel());
    assertEquals(ETHERNET_AD_ROUTE_CASE, resultModel);
    final NlriType type = NlriType.forValue(buff.readUnsignedByte());
    buff.skipBytes(VALUE_SIZE); // length + RD
    assertEquals(ETHERNET_AD_ROUTE_CASE, SimpleEvpnNlriRegistry.getInstance().parseEvpn(type, buff));
}

From source file:org.opendaylight.protocol.bgp.flowspec.AbstractFlowspecNlriParser.java

License:Open Source License

/**
 * This step is used to verify the NLRI length we read from BGP message
 *
 * @param nlri/*from   www  .j a  v  a2  s . com*/
 */
private static final void verifyNlriLength(@Nonnull final ByteBuf nlri) {
    // length field can be one or two bytes (if needed)
    // check the length of nlri to see how many bytes we can skip
    int readableLength = nlri.readableBytes();
    // read the length from field
    final int expectedLength;
    if (readableLength > MAX_NLRI_LENGTH_ONE_BYTE) {
        expectedLength = nlri.readUnsignedShort();
        // deduct the two bytes of the NLRI length field
        readableLength -= NLRI_LENGTH_EXTENDED;
    } else {
        expectedLength = nlri.readUnsignedByte();
        // deduct the one byte of the NLRI length field
        readableLength -= NLRI_LENGTH;
    }
    Preconditions.checkState(readableLength == expectedLength,
            "NLRI length read from message doesn't match. Length expected (read from NLRI) is %s, length readable is %s",
            expectedLength, readableLength);
}

From source file:org.opendaylight.protocol.bgp.flowspec.AbstractFSNlriParser.java

License:Open Source License

/**
 * Parses Flowspec NLRI into list of Flowspec.
 *
 * @param nlri byte representation of NLRI which will be parsed
 * @return list of Flowspec//  w w  w.j  av  a 2s. c  o m
 */
public final List<Flowspec> parseNlri(final ByteBuf nlri) throws BGPParsingException {
    if (!nlri.isReadable()) {
        return null;
    }
    final List<Flowspec> fss = new ArrayList<>();

    // length field can be one or two bytes (if needed)
    // check the length of nlri to see how many bytes we can skip
    final int length = nlri.readableBytes();
    nlri.skipBytes(length > MAX_NLRI_LENGTH_ONE_BYTE ? NLRI_LENGTH_EXTENDED : NLRI_LENGTH);

    while (nlri.isReadable()) {
        final FlowspecBuilder builder = new FlowspecBuilder();
        final short type = nlri.readUnsignedByte();
        setFlowspecType(builder, type, nlri);
        fss.add(builder.build());
    }
    return fss;
}

From source file:org.opendaylight.protocol.bgp.flowspec.AbstractFSNlriParser.java

License:Open Source License

private static List<Types> parseIcmpType(final ByteBuf nlri) {
    final List<Types> types = new ArrayList<>();
    boolean end = false;
    // we can do this as all fields will be rewritten in the cycle
    final TypesBuilder builder = new TypesBuilder();
    while (!end) {
        final byte b = nlri.readByte();
        final NumericOperand op = NumericOneByteOperandParser.INSTANCE.parse(b);
        builder.setOp(op);/* w  ww.j av a  2s  .c  o  m*/
        builder.setValue(nlri.readUnsignedByte());
        end = op.isEndOfList();
        types.add(builder.build());
    }
    return types;
}

From source file:org.opendaylight.protocol.bgp.flowspec.AbstractFSNlriParser.java

License:Open Source License

private static List<Codes> parseIcmpCode(final ByteBuf nlri) {
    final List<Codes> codes = new ArrayList<>();
    boolean end = false;
    // we can do this as all fields will be rewritten in the cycle
    final CodesBuilder builder = new CodesBuilder();
    while (!end) {
        final byte b = nlri.readByte();
        final NumericOperand op = NumericOneByteOperandParser.INSTANCE.parse(b);
        builder.setOp(op);/*  w  w  w  .j a v a 2 s.co  m*/
        builder.setValue(nlri.readUnsignedByte());
        end = op.isEndOfList();
        codes.add(builder.build());
    }
    return codes;
}

From source file:org.opendaylight.protocol.bgp.flowspec.AbstractFSNlriParser.java

License:Open Source License

private static List<Dscps> parseDscp(final ByteBuf nlri) {
    final List<Dscps> dscps = new ArrayList<>();
    boolean end = false;
    // we can do this as all fields will be rewritten in the cycle
    final DscpsBuilder builder = new DscpsBuilder();
    while (!end) {
        final byte b = nlri.readByte();
        // RFC does not specify operator
        final NumericOperand op = NumericOneByteOperandParser.INSTANCE.parse(b);
        builder.setOp(op);//ww w .  j  a  va  2 s  .  co m
        builder.setValue(
                new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.flowspec.rev150807.Dscp(
                        nlri.readUnsignedByte()));
        end = op.isEndOfList();
        dscps.add(builder.build());
    }
    return dscps;
}

From source file:org.opendaylight.protocol.bgp.flowspec.extended.communities.TrafficMarkingEcHandler.java

License:Open Source License

@Override
public ExtendedCommunity parseExtendedCommunity(final ByteBuf buffer)
        throws BGPDocumentedException, BGPParsingException {
    buffer.skipBytes(RESERVED);//from   w w  w . j  a v a 2s . co  m
    final Dscp dscp = new Dscp(buffer.readUnsignedByte());
    return new TrafficMarkingExtendedCommunityCaseBuilder().setTrafficMarkingExtendedCommunity(
            new TrafficMarkingExtendedCommunityBuilder().setGlobalAdministrator(dscp).build()).build();
}

From source file:org.opendaylight.protocol.bgp.flowspec.FSDscpHandler.java

License:Open Source License

private static List<Dscps> parseDscps(final ByteBuf nlri) {
    final List<Dscps> dscps = new ArrayList<>();
    boolean end = false;
    // we can do this as all fields will be rewritten in the cycle
    final DscpsBuilder builder = new DscpsBuilder();
    while (!end) {
        final byte b = nlri.readByte();
        // RFC does not specify operator
        final NumericOperand op = NumericOneByteOperandParser.INSTANCE.parse(b);
        builder.setOp(op);/*from w w w.  j  ava2  s .  c o m*/
        builder.setValue(
                new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.flowspec.rev150807.Dscp(
                        nlri.readUnsignedByte()));
        end = op.isEndOfList();
        dscps.add(builder.build());
    }
    return dscps;
}

From source file:org.opendaylight.protocol.bgp.flowspec.FSIcmpTypeHandler.java

License:Open Source License

private static List<Types> parseIcmpType(final ByteBuf nlri) {
    final List<Types> icmps = new ArrayList<>();
    boolean end = false;
    // we can do this as all fields will be rewritten in the cycle
    final TypesBuilder builder = new TypesBuilder();
    while (!end) {
        final byte b = nlri.readByte();
        final NumericOperand op = NumericOneByteOperandParser.INSTANCE.parse(b);
        builder.setOp(op);/*from w  w  w .  j av a 2 s  . co  m*/
        builder.setValue(nlri.readUnsignedByte());
        end = op.isEndOfList();
        icmps.add(builder.build());
    }
    return icmps;
}

From source file:org.opendaylight.protocol.bgp.flowspec.FSIpProtocolHandler.java

License:Open Source License

private static List<ProtocolIps> parseProtocolIp(final ByteBuf nlri) {
    final List<ProtocolIps> ips = new ArrayList<>();
    boolean end = false;
    // we can do this as all fields will be rewritten in the cycle
    final ProtocolIpsBuilder builder = new ProtocolIpsBuilder();
    while (!end) {
        final byte b = nlri.readByte();
        final NumericOperand op = NumericOneByteOperandParser.INSTANCE.parse(b);
        builder.setOp(op);/*from   w  w w  .j av  a 2s.  c o m*/
        builder.setValue(nlri.readUnsignedByte());
        end = op.isEndOfList();
        ips.add(builder.build());
    }
    return ips;
}