Example usage for io.netty.buffer ByteBuf writeShort

Introduction

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

Prototype

public abstract ByteBuf writeShort(int value);

Source Link

Document

Sets the specified 16-bit short integer at the current writerIndex and increases the writerIndex by 2 in this buffer.

Usage

From source file:org.bgp4j.netty.protocol.open.CapabilityCodec.java

License:Apache License

private static void encodeOutboundRouteFilteringCapability(ByteBuf buffer,
        OutboundRouteFilteringCapability cap) {
    buffer.writeByte(5 + 2 * cap.getFilters().size());

    buffer.writeShort(cap.getAddressFamily().toCode());
    buffer.writeByte(0);/*from w ww.  ja  va  2 s .  co  m*/
    buffer.writeByte(cap.getSubsequentAddressFamily().toCode());
    buffer.writeByte(cap.getFilters().size());

    for (ORFType type : cap.getFilters().keySet()) {
        buffer.writeByte(type.toCode());
        buffer.writeByte(cap.getFilters().get(type).toCode());
    }
}

From source file:org.bgp4j.netty.protocol.open.CapabilityCodec.java

License:Apache License

private static ByteBuf encodeMultiprotocolCapability(ByteBuf buffer, MultiProtocolCapability cap) {
    buffer.writeByte(4);/* w  w w.  j av  a 2s .  c  o  m*/

    if (cap.getAfi() != null)
        buffer.writeShort(cap.getAfi().toCode());
    else
        buffer.writeShort(AddressFamily.RESERVED.toCode());

    buffer.writeByte(0); // reserved

    if (cap.getSafi() != null)
        buffer.writeByte(cap.getSafi().toCode());
    else
        buffer.writeByte(0);

    return buffer;
}

From source file:org.bgp4j.netty.protocol.open.OpenPacket.java

License:Apache License

@Override
protected void encodePayload(ByteBuf buffer) {
    buffer.writeByte(getProtocolVersion());
    buffer.writeShort(getAutonomousSystem());
    buffer.writeShort(getHoldTime());//  w  w  w.j a va  2  s  .  co m
    buffer.writeInt((int) getBgpIdentifier());

    if (!capabilities.isEmpty()) {
        int capabilityLengthIndex = buffer.writerIndex();

        buffer.writeByte(0); // placeholder for capability length
        buffer.writeByte(BGPv4Constants.BGP_OPEN_PARAMETER_TYPE_CAPABILITY); // type byte

        int parameterLengthIndex = buffer.writerIndex();

        buffer.writeByte(0); // placeholder for parameter length
        CapabilityCodec.encodeCapabilities(buffer, getCapabilities());

        buffer.setByte(capabilityLengthIndex, buffer.writerIndex() - capabilityLengthIndex - 1);
        buffer.setByte(parameterLengthIndex, buffer.writerIndex() - parameterLengthIndex - 1);
    } else {
        buffer.writeByte(0); // no capabilites encoded --> optional parameter length equals 0
    }
}

From source file:org.bgp4j.netty.protocol.open.UnsupportedVersionNumberNotificationPacket.java

License:Apache License

@Override
protected void encodeAdditionalPayload(ByteBuf buffer) {
    buffer.writeShort(this.supportedProtocolVersion);
}

From source file:org.bgp4j.netty.protocol.refresh.RouteRefreshPacket.java

License:Apache License

@Override
protected void encodePayload(ByteBuf buffer) {

    buffer.writeShort(getAddressFamily().toCode());
    buffer.writeByte(0);/*w  w w .  j  av  a  2 s .c  o m*/
    buffer.writeByte(getSubsequentAddressFamily().toCode());

    if (outboundRouteFilter != null) {
        buffer.writeByte(outboundRouteFilter.getRefreshType().toCode());

        for (ORFType type : outboundRouteFilter.getEntries().keySet()) {
            buffer.writeByte(type.toCode());

            int entriesLengthIndex = buffer.writerIndex();

            buffer.writeShort(0); // placeholder for entries length

            for (ORFEntry entry : outboundRouteFilter.getEntries().get(type)) {
                ORFEntryCodec.encodeORFEntry(buffer, entry);
            }

            buffer.setShort(entriesLengthIndex, buffer.writerIndex() - entriesLengthIndex - 2);
        }
    }
}

From source file:org.bgp4j.netty.protocol.update.AggregatorPathAttributeCodecHandler.java

License:Apache License

@Override
public void encodeValue(ByteBuf buffer, AggregatorPathAttribute attr) {
    if (attr.isFourByteASNumber())
        buffer.writeInt(attr.getAsNumber());
    else//from www .  j  a v  a 2s.c  om
        buffer.writeShort(attr.getAsNumber());

    buffer.writeBytes(attr.getAggregator().getAddress());
}

From source file:org.bgp4j.netty.protocol.update.CommunityPathAttributeCodecHandler.java

License:Apache License

@Override
public void encodeValue(ByteBuf buffer, CommunityPathAttribute attr) {
    buffer.writeInt(attr.getCommunity());

    if (attr.getMembers() != null) {
        for (CommunityMember member : attr.getMembers()) {
            buffer.writeShort(member.getAsNumber());
            buffer.writeShort(member.getMemberFlags());
        }// ww w  .  j  a  v a  2s  .c om
    }
}

From source file:org.bgp4j.netty.protocol.update.MultiProtocolReachableNLRICodecHandler.java

License:Apache License

@Override
public void encodeValue(ByteBuf buffer, MultiProtocolReachableNLRI attr) {
    buffer.writeShort(attr.getAddressFamily().toCode());
    buffer.writeByte(attr.getSubsequentAddressFamily().toCode());

    if (attr.getNextHop() != null) {
        buffer.writeByte(attr.getNextHop().getAddress().length);
        buffer.writeBytes(attr.getNextHop().getAddress());
    } else {//from w  ww . j  a v  a 2s .c  om
        buffer.writeByte(0);
    }

    buffer.writeByte(0); // write reserved field

    if (attr.getNlris() != null) {
        for (NetworkLayerReachabilityInformation nlri : attr.getNlris())
            NLRICodec.encodeNLRI(buffer, nlri);
    }
}

From source file:org.bgp4j.netty.protocol.update.MultiProtocolUnreachableNLRICodecHandler.java

License:Apache License

@Override
public void encodeValue(ByteBuf buffer, MultiProtocolUnreachableNLRI attr) {
    buffer.writeShort(attr.getAddressFamily().toCode());
    buffer.writeByte(attr.getSubsequentAddressFamily().toCode());

    if (attr.getNlris() != null) {
        for (NetworkLayerReachabilityInformation nlri : attr.getNlris())
            NLRICodec.encodeNLRI(buffer, nlri);
    }// w ww  . j a  va  2 s.com
}

From source file:org.bgp4j.netty.protocol.update.PathAttributeCodec.java

License:Apache License

/**
 * encode the path attribute for network transmission
 * //  w  w w . j a v a  2  s. c  o  m
 * @return an encoded formatted path attribute
 */
public static void encodePathAttribute(ByteBuf buffer, PathAttribute attr) {
    ByteBuf valueBuffer = allocator.buffer().order(ByteOrder.BIG_ENDIAN);

    encodeValue(valueBuffer, attr);

    int valueLength = valueBuffer.readableBytes();
    int attrFlagsCode = 0;

    if (attr.isOptional())
        attrFlagsCode |= BGPv4Constants.BGP_PATH_ATTRIBUTE_OPTIONAL_BIT;

    if (attr.isTransitive())
        attrFlagsCode |= BGPv4Constants.BGP_PATH_ATTRIBUTE_TRANSITIVE_BIT;

    if (attr.isPartial())
        attrFlagsCode |= BGPv4Constants.BGP_PATH_ATTRIBUTE_PARTIAL_BIT;

    if (valueLength > 255)
        attrFlagsCode |= BGPv4Constants.BGP_PATH_ATTRIBUTE_EXTENDED_LENGTH_BIT;

    attrFlagsCode |= (typeCode(attr) & BGPv4Constants.BGP_PATH_ATTRIBUTE_TYPE_MASK);

    buffer.writeShort(attrFlagsCode);

    if (valueLength > 255)
        buffer.writeShort(valueLength);
    else
        buffer.writeByte(valueLength);

    if (valueLength > 0)
        buffer.writeBytes(valueBuffer);

}