Example usage for io.netty.buffer ByteBuf isReadable

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

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Introduction

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

Prototype

public abstract boolean isReadable();

Source Link

Document

Returns true if and only if (this.writerIndex - this.readerIndex) is greater than 0 .

Usage

From source file:org.opendaylight.protocol.pcep.impl.subobject.EROExplicitExclusionRouteSubobjectParser.java

License:Open Source License

private List<org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.exclude.route.object.xro.Subobject> parseSubobject(
        final ByteBuf buffer) throws PCEPDeserializerException {
    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.pcep.types.rev131005.exclude.route.object.xro.Subobject> subs = new ArrayList<>();
    while (buffer.isReadable()) {
        final boolean mandatory = ((buffer.getByte(buffer.readerIndex()) & (1 << Values.FIRST_BIT_OFFSET)) != 0)
                ? true//from   ww w.j a v  a  2 s .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 PCEPDeserializerException(
                    "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.pcep.impl.subobject.EROIpv4PrefixSubobjectParser.java

License:Open Source License

@Override
public Subobject parseSubobject(final ByteBuf buffer, final boolean loose) throws PCEPDeserializerException {
    Preconditions.checkArgument(buffer != null && buffer.isReadable(),
            "Array of bytes is mandatory. Can't be null or empty.");
    final SubobjectBuilder builder = new SubobjectBuilder();
    builder.setLoose(loose);/*from  ww w .j  a  va  2 s.  c om*/
    if (buffer.readableBytes() != CONTENT4_LENGTH) {
        throw new PCEPDeserializerException(
                "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());
    return builder.build();
}

From source file:org.opendaylight.protocol.pcep.impl.subobject.EROIpv6PrefixSubobjectParser.java

License:Open Source License

@Override
public Subobject parseSubobject(final ByteBuf buffer, final boolean loose) throws PCEPDeserializerException {
    Preconditions.checkArgument(buffer != null && buffer.isReadable(),
            "Array of bytes is mandatory. Can't be null or empty.");
    final SubobjectBuilder builder = new SubobjectBuilder();
    builder.setLoose(loose);//from  w  w w  .j av  a  2 s .com
    if (buffer.readableBytes() != CONTENT_LENGTH) {
        throw new PCEPDeserializerException(
                "Wrong length of array of bytes. Passed: " + buffer.readableBytes() + ";");
    }
    final int length = buffer.getUnsignedByte(PREFIX_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());
    return builder.build();
}

From source file:org.opendaylight.protocol.pcep.impl.subobject.EROLabelSubobjectParser.java

License:Open Source License

@Override
public Subobject parseSubobject(final ByteBuf buffer, final boolean loose) throws PCEPDeserializerException {
    Preconditions.checkArgument(buffer != null && buffer.isReadable(),
            "Array of bytes is mandatory. Can't be null or empty.");
    if (buffer.readableBytes() < HEADER_LENGTH) {
        throw new PCEPDeserializerException("Wrong length of array of bytes. Passed: " + buffer.readableBytes()
                + "; Expected: >" + HEADER_LENGTH + ".");
    }// ww  w.  jav  a2  s .  c  o m
    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 PCEPDeserializerException("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 SubobjectBuilder().setLoose(loose)
            .setSubobjectType(new LabelCaseBuilder().setLabel(builder.build()).build()).build();
}

From source file:org.opendaylight.protocol.pcep.impl.subobject.EROUnnumberedInterfaceSubobjectParser.java

License:Open Source License

@Override
public Subobject parseSubobject(final ByteBuf buffer, final boolean loose) 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 + ".");
    }/* www  .j a va  2s  .  co m*/
    final SubobjectBuilder builder = new SubobjectBuilder();
    builder.setLoose(loose);
    final UnnumberedBuilder ubuilder = new UnnumberedBuilder();
    buffer.skipBytes(RESERVED);
    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.impl.subobject.GeneralizedLabelParser.java

License:Open Source License

@Override
public LabelType parseLabel(final ByteBuf buffer) throws PCEPDeserializerException {
    Preconditions.checkArgument(buffer != null && buffer.isReadable(),
            "Array of bytes is mandatory. Can't be null or empty.");
    return new GeneralizedLabelCaseBuilder()
            .setGeneralizedLabel(//from w  ww. j  a  v a 2s .c om
                    new GeneralizedLabelBuilder().setGeneralizedLabel(ByteArray.readAllBytes(buffer)).build())
            .build();
}

From source file:org.opendaylight.protocol.pcep.impl.subobject.RROIpv4PrefixSubobjectParser.java

License:Open Source License

@Override
public Subobject parseSubobject(final ByteBuf buffer) throws PCEPDeserializerException {
    Preconditions.checkArgument(buffer != null && buffer.isReadable(),
            "Array of bytes is mandatory. Can't be null or empty.");
    if (buffer.readableBytes() != CONTENT4_LENGTH) {
        throw new PCEPDeserializerException(
                "Wrong length of array of bytes. Passed: " + buffer.readableBytes() + ";");
    }/*w w w  . j  a va  2  s .co  m*/
    final SubobjectBuilder builder = new SubobjectBuilder();
    final int length = buffer.getUnsignedByte(PREFIX4_F_OFFSET);
    final org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev150820.record.route.subobjects.subobject.type.ip.prefix._case.IpPrefix prefix = new IpPrefixBuilder()
            .setIpPrefix(new IpPrefix(
                    Ipv4Util.prefixForBytes(ByteArray.readBytes(buffer, Ipv4Util.IP4_LENGTH), length)))
            .build();
    buffer.skipBytes(PREFIX_F_LENGTH);
    final BitArray flags = BitArray.valueOf(buffer, FLAGS_SIZE);
    builder.setProtectionAvailable(flags.get(LPA_F_OFFSET));
    builder.setProtectionInUse(flags.get(LPIU_F_OFFSET));
    builder.setSubobjectType(new IpPrefixCaseBuilder().setIpPrefix(prefix).build());
    return builder.build();
}

From source file:org.opendaylight.protocol.pcep.impl.subobject.RROIpv6PrefixSubobjectParser.java

License:Open Source License

@Override
public Subobject parseSubobject(final ByteBuf buffer) throws PCEPDeserializerException {
    Preconditions.checkArgument(buffer != null && buffer.isReadable(),
            "Array of bytes is mandatory. Can't be null or empty.");
    final SubobjectBuilder builder = new SubobjectBuilder();
    if (buffer.readableBytes() != CONTENT_LENGTH) {
        throw new PCEPDeserializerException(
                "Wrong length of array of bytes. Passed: " + buffer.readableBytes() + ";");
    }//from w  ww .  j a  v a2  s.  c om
    final int length = buffer.getUnsignedByte(PREFIX_F_OFFSET);
    final IpPrefixBuilder prefix = new IpPrefixBuilder().setIpPrefix(
            new IpPrefix(Ipv6Util.prefixForBytes(ByteArray.readBytes(buffer, Ipv6Util.IPV6_LENGTH), length)));
    buffer.skipBytes(PREFIX_F_LENGTH);
    final BitArray flags = BitArray.valueOf(buffer, FLAGS_SIZE);
    builder.setProtectionAvailable(flags.get(LPA_F_OFFSET));
    builder.setProtectionInUse(flags.get(LPIU_F_OFFSET));
    builder.setSubobjectType(new IpPrefixCaseBuilder().setIpPrefix(prefix.build()).build());
    return builder.build();
}

From source file:org.opendaylight.protocol.pcep.impl.subobject.RROLabelSubobjectParser.java

License:Open Source License

@Override
public Subobject parseSubobject(final ByteBuf buffer) throws PCEPDeserializerException {
    Preconditions.checkArgument(buffer != null && buffer.isReadable(),
            "Array of bytes is mandatory. Can't be null or empty.");
    if (buffer.readableBytes() < HEADER_LENGTH) {
        throw new PCEPDeserializerException("Wrong length of array of bytes. Passed: " + buffer.readableBytes()
                + "; Expected: >" + HEADER_LENGTH + ".");
    }/*w  w  w .  ja  v  a 2 s .  c o m*/
    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 PCEPDeserializerException("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 SubobjectBuilder().setSubobjectType(new LabelCaseBuilder().setLabel(builder.build()).build())
            .build();
}

From source file:org.opendaylight.protocol.pcep.impl.subobject.RROPathKey128SubobjectParser.java

License:Open Source License

@Override
public Subobject parseSubobject(final ByteBuf buffer) throws PCEPDeserializerException {
    Preconditions.checkArgument(buffer != null && buffer.isReadable(),
            "Array of bytes is mandatory. Can't be null or empty.");
    if (buffer.readableBytes() != CONTENT128_LENGTH) {
        throw new PCEPDeserializerException("Wrong length of array of bytes. Passed: " + buffer.readableBytes()
                + "; Expected: >" + CONTENT128_LENGTH + ".");
    }/*from  ww w .  java 2  s.co m*/
    final int pathKey = buffer.readUnsignedShort();
    final byte[] pceId = ByteArray.readBytes(buffer, PCE128_ID_F_LENGTH);
    final SubobjectBuilder builder = new SubobjectBuilder();
    final PathKeyBuilder pBuilder = new PathKeyBuilder();
    pBuilder.setPceId(new PceId(pceId));
    pBuilder.setPathKey(new PathKey(pathKey));
    builder.setSubobjectType(new PathKeyCaseBuilder().setPathKey(pBuilder.build()).build());
    return builder.build();
}