Example usage for io.netty.buffer ByteBuf readUnsignedByte

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

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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.pcep.impl.subobject.XROUnnumberedInterfaceSubobjectParser.java

License:Open Source License

@Override
public Subobject parseSubobject(final ByteBuf buffer, final boolean mandatory)
        throws PCEPDeserializerException {
    Preconditions.checkArgument(buffer != null && buffer.isReadable(),
            "Array of bytes is mandatory. Can't be null or empty.");
    if (buffer.readableBytes() != CONTENT_LENGTH) {
        throw new PCEPDeserializerException("Wrong length of array of bytes. Passed: " + buffer.readableBytes()
                + "; Expected: " + CONTENT_LENGTH + ".");
    }/*from ww w .  jav  a2s . c  om*/
    buffer.readerIndex(buffer.readerIndex() + RESERVED);
    final SubobjectBuilder builder = new SubobjectBuilder();
    builder.setMandatory(mandatory);
    builder.setAttribute(Attribute.forValue(buffer.readUnsignedByte()));
    final UnnumberedBuilder ubuilder = new UnnumberedBuilder();
    ubuilder.setRouterId(buffer.readUnsignedInt());
    ubuilder.setInterfaceId(buffer.readUnsignedInt());
    builder.setSubobjectType(new UnnumberedCaseBuilder().setUnnumbered(ubuilder.build()).build());
    return builder.build();
}

From source file:org.opendaylight.protocol.pcep.spi.AbstractMessageParser.java

License:Open Source License

private List<Object> parseObjects(final ByteBuf bytes) throws PCEPDeserializerException {
    final List<Object> objs = new ArrayList<>();
    while (bytes.isReadable()) {
        if (bytes.readableBytes() < COMMON_OBJECT_HEADER_LENGTH) {
            throw new PCEPDeserializerException("Too few bytes in passed array. Passed: "
                    + bytes.readableBytes() + " Expected: >= " + COMMON_OBJECT_HEADER_LENGTH + ".");
        }//from   ww  w. ja va 2 s .  co  m
        final int objClass = bytes.readUnsignedByte();

        final byte flagsByte = bytes.readByte();
        final BitArray flags = BitArray.valueOf(flagsByte);
        final int objType = UnsignedBytes.toInt(ByteArray.copyBitsRange(flagsByte, OT_SF_OFFSET, OT_SF_LENGTH));
        final int objLength = bytes.readUnsignedShort();

        if (bytes.readableBytes() < objLength - COMMON_OBJECT_HEADER_LENGTH) {
            throw new PCEPDeserializerException("Too few bytes in passed array. Passed: "
                    + bytes.readableBytes() + " Expected: >= " + objLength + ".");
        }
        // copy bytes for deeper parsing
        final ByteBuf bytesToPass = bytes.readSlice(objLength - COMMON_OBJECT_HEADER_LENGTH);

        final ObjectHeader header = new ObjectHeaderImpl(flags.get(PROCESSED), flags.get(IGNORED));

        if (VendorInformationUtil.isVendorInformationObject(objClass, objType)) {
            final EnterpriseNumber enterpriseNumber = new EnterpriseNumber(bytesToPass.readUnsignedInt());
            final Optional<? extends Object> obj = this.registry.parseVendorInformationObject(enterpriseNumber,
                    header, bytesToPass);
            if (obj.isPresent()) {
                objs.add(obj.get());
            }
        } else {
            // parseObject is required to return null for P=0 errored objects
            final Object o = this.registry.parseObject(objClass, objType, header, bytesToPass);
            if (o != null) {
                objs.add(o);
            }
        }
    }

    return objs;
}

From source file:org.opendaylight.protocol.rsvp.parser.impl.subobject.ero.EROExplicitExclusionRouteSubobjectParser.java

License:Open Source License

private List<org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev150820.exclude.route.object.exclude.route.object.SubobjectContainer> parseSubobject(
        final ByteBuf buffer) throws RSVPParsingException {
    Preconditions.checkArgument(buffer != null && buffer.isReadable(),
            "Array of bytes is mandatory. Can't be null or empty.");
    final List<org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev150820.exclude.route.object.exclude.route.object.SubobjectContainer> subs = new ArrayList<>();
    while (buffer.isReadable()) {
        final boolean mandatory = ((buffer.getByte(buffer.readerIndex()) & (1 << Values.FIRST_BIT_OFFSET)) != 0)
                ? true/*from   w w w. j a va2s .c  o  m*/
                : false;
        final int type = (buffer.readUnsignedByte() & Values.BYTE_MAX_VALUE_BYTES)
                & ~(1 << Values.FIRST_BIT_OFFSET);
        final int length = buffer.readUnsignedByte() - HEADER_LENGTH;
        if (length > buffer.readableBytes()) {
            throw new RSVPParsingException(
                    "Wrong length specified. Passed: " + length + "; Expected: <= " + buffer.readableBytes());
        }
        subs.add(this.registry.parseSubobject(type, buffer.readSlice(length), mandatory));
    }
    return subs;
}

From source file:org.opendaylight.protocol.rsvp.parser.impl.subobject.ero.EROLabelSubobjectParser.java

License:Open Source License

@Override
public SubobjectContainer parseSubobject(final ByteBuf buffer, final boolean loose)
        throws RSVPParsingException {
    Preconditions.checkArgument(buffer != null && buffer.isReadable(),
            "Array of bytes is mandatory. Can't be null or empty.");
    if (buffer.readableBytes() < HEADER_LENGTH) {
        throw new RSVPParsingException("Wrong length of array of bytes. Passed: " + buffer.readableBytes()
                + "; Expected: >" + HEADER_LENGTH + ".");
    }//from  ww w .  ja v  a2  s.c om
    final BitArray reserved = BitArray.valueOf(buffer, FLAGS_SIZE);
    final short cType = buffer.readUnsignedByte();

    final LabelType labelType = this.registry.parseLabel(cType, buffer.slice());
    if (labelType == null) {
        throw new RSVPParsingException("Unknown C-TYPE for ero label subobject. Passed: " + cType);
    }
    final LabelBuilder builder = new LabelBuilder();
    builder.setUniDirectional(reserved.get(U_FLAG_OFFSET));
    builder.setLabelType(labelType);
    return new SubobjectContainerBuilder().setLoose(loose)
            .setSubobjectType(new LabelCaseBuilder().setLabel(builder.build()).build()).build();
}

From source file:org.opendaylight.protocol.rsvp.parser.impl.subobject.ero.SEROBasicProtectionSubobjectParser.java

License:Open Source License

@Override
public SubobjectContainer parseSubobject(final ByteBuf buffer, final boolean loose)
        throws RSVPParsingException {
    Preconditions.checkArgument(buffer != null && buffer.isReadable(),
            "Array of bytes is mandatory. Can't be null or empty.");
    final SubobjectContainerBuilder builder = new SubobjectContainerBuilder();
    builder.setLoose(loose);//from www.  ja va 2  s  . c o m
    //skip reserved
    buffer.readByte();
    final short cType = buffer.readUnsignedByte();
    final ProtectionSubobject prot = parseCommonProtectionBody(cType, buffer);
    if (cType == CTYPE) {
        builder.setSubobjectType(new BasicProtectionCaseBuilder()
                .setBasicProtection(new BasicProtectionBuilder().setProtectionSubobject(prot).build()).build());

    } else if (cType == SERODynamicProtectionSubobjectParser.CTYPE) {
        builder.setSubobjectType(
                new DynamicControlProtectionCaseBuilder()
                        .setDynamicControlProtection(
                                new DynamicControlProtectionBuilder().setProtectionSubobject(prot).build())
                        .build());
    }
    return builder.build();
}

From source file:org.opendaylight.protocol.rsvp.parser.impl.subobject.rro.RROLabelSubobjectParser.java

License:Open Source License

@Override
public SubobjectContainer parseSubobject(final ByteBuf buffer) throws RSVPParsingException {
    Preconditions.checkArgument(buffer != null && buffer.isReadable(),
            "Array of bytes is mandatory. Can't be null or empty.");
    if (buffer.readableBytes() < HEADER_LENGTH) {
        throw new RSVPParsingException("Wrong length of array of bytes. Passed: " + buffer.readableBytes()
                + "; Expected: >" + HEADER_LENGTH + ".");
    }//from  ww w  .j a  v a  2s  .  com
    final BitArray reserved = BitArray.valueOf(buffer, FLAGS_SIZE);

    final short cType = buffer.readUnsignedByte();

    final LabelType labelType = this.registry.parseLabel(cType, buffer.slice());
    if (labelType == null) {
        throw new RSVPParsingException("Unknown C-TYPE for ero label subobject. Passed: " + cType);
    }
    final LabelBuilder builder = new LabelBuilder();
    builder.setUniDirectional(reserved.get(U_FLAG_OFFSET));
    builder.setGlobal(reserved.get(G_FLAG_OFFSET));
    builder.setLabelType(labelType);
    return new SubobjectContainerBuilder()
            .setSubobjectType(new LabelCaseBuilder().setLabel(builder.build()).build()).build();
}

From source file:org.opendaylight.protocol.rsvp.parser.impl.subobject.rro.SRROBasicProtectionSubobjectParser.java

License:Open Source License

@Override
public SubobjectContainer parseSubobject(final ByteBuf buffer) throws RSVPParsingException {
    Preconditions.checkArgument(buffer != null && buffer.isReadable(),
            "Array of bytes is mandatory. Can't be null or empty.");
    final SubobjectContainerBuilder builder = new SubobjectContainerBuilder();
    //skip reserved
    buffer.readByte();//from  ww  w .j  av  a  2  s  .  com
    final short cType = buffer.readUnsignedByte();
    final ProtectionSubobject prot = parseCommonProtectionBody(cType, buffer);
    if (cType == CTYPE) {
        builder.setSubobjectType(new BasicProtectionCaseBuilder()
                .setBasicProtection(new BasicProtectionBuilder().setProtectionSubobject(prot).build()).build());
    } else if (cType == SRRODynamicProtectionSubobjectParser.CTYPE) {
        builder.setSubobjectType(
                new DynamicControlProtectionCaseBuilder()
                        .setDynamicControlProtection(
                                new DynamicControlProtectionBuilder().setProtectionSubobject(prot).build())
                        .build());
    }
    return builder.build();
}

From source file:org.opendaylight.protocol.rsvp.parser.impl.subobject.xro.XROIpv4PrefixSubobjectParser.java

License:Open Source License

@Override
public SubobjectContainer parseSubobject(final ByteBuf buffer, final boolean mandatory)
        throws RSVPParsingException {
    Preconditions.checkArgument(buffer != null && buffer.isReadable(),
            "Array of bytes is mandatory. Can't be null or empty.");
    final SubobjectContainerBuilder builder = new SubobjectContainerBuilder();
    builder.setMandatory(mandatory);/* w  w w.j  a v  a 2 s .c  o  m*/
    if (buffer.readableBytes() != CONTENT4_LENGTH) {
        throw new RSVPParsingException(
                "Wrong length of array of bytes. Passed: " + buffer.readableBytes() + ";");
    }
    final int length = buffer.getUnsignedByte(PREFIX4_F_OFFSET);
    final IpPrefixBuilder prefix = new IpPrefixBuilder().setIpPrefix(
            new IpPrefix(Ipv4Util.prefixForBytes(ByteArray.readBytes(buffer, Ipv4Util.IP4_LENGTH), length)));
    builder.setSubobjectType(new IpPrefixCaseBuilder().setIpPrefix(prefix.build()).build());
    buffer.skipBytes(PREFIX_F_LENGTH);
    builder.setAttribute(ExcludeRouteSubobjects.Attribute.forValue(buffer.readUnsignedByte()));
    return builder.build();
}

From source file:org.opendaylight.protocol.rsvp.parser.impl.subobject.xro.XROIpv6PrefixSubobjectParser.java

License:Open Source License

@Override
public SubobjectContainer parseSubobject(final ByteBuf buffer, final boolean mandatory)
        throws RSVPParsingException {
    Preconditions.checkArgument(buffer != null && buffer.isReadable(),
            "Array of bytes is mandatory. Can't be null or empty.");
    final SubobjectContainerBuilder builder = new SubobjectContainerBuilder();
    builder.setMandatory(mandatory);/*from www  . j a v a 2  s  .co m*/
    if (buffer.readableBytes() != CONTENT6_LENGTH) {
        throw new RSVPParsingException(
                "Wrong length of array of bytes. Passed: " + buffer.readableBytes() + ";");
    }
    final int length = buffer.getUnsignedByte(PREFIX6_F_OFFSET);
    final IpPrefixBuilder prefix = new IpPrefixBuilder().setIpPrefix(
            new IpPrefix(Ipv6Util.prefixForBytes(ByteArray.readBytes(buffer, Ipv6Util.IPV6_LENGTH), length)));
    builder.setSubobjectType(new IpPrefixCaseBuilder().setIpPrefix(prefix.build()).build());
    buffer.skipBytes(PREFIX_F_LENGTH);
    builder.setAttribute(ExcludeRouteSubobjects.Attribute.forValue(buffer.readUnsignedByte()));
    return builder.build();
}

From source file:org.opendaylight.protocol.rsvp.parser.impl.subobject.xro.XROSRLGSubobjectParser.java

License:Open Source License

@Override
public SubobjectContainer parseSubobject(final ByteBuf buffer, final boolean mandatory)
        throws RSVPParsingException {
    Preconditions.checkArgument(buffer != null && buffer.isReadable(),
            "Array of bytes is mandatory. Can't be null or empty.");
    if (buffer.readableBytes() != CONTENT_LENGTH) {
        throw new RSVPParsingException("Wrong length of array of bytes. Passed: " + buffer.readableBytes()
                + "; Expected: " + CONTENT_LENGTH + ".");
    }/*from   www  .j ava2 s .  c  o  m*/
    final SubobjectContainerBuilder builder = new SubobjectContainerBuilder();
    builder.setMandatory(mandatory);
    builder.setSubobjectType(new SrlgCaseBuilder()
            .setSrlg(new SrlgBuilder().setSrlgId(new SrlgId(buffer.readUnsignedInt())).build()).build());
    buffer.readByte();
    builder.setAttribute(ExcludeRouteSubobjects.Attribute.forValue(buffer.readUnsignedByte()));
    return builder.build();
}