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.bmp.spi.parser.TlvUtilTest.java

License:Open Source License

@Test
public void testFormatTlvASCII() throws Exception {
    ByteBuf out = Unpooled.buffer(TLV_ASCII_OUT.length);
    TlvUtil.formatTlvAscii(1, "Name", out);
    Assert.assertArrayEquals(TLV_ASCII_OUT, ByteArray.getAllBytes(out));
    out = Unpooled.EMPTY_BUFFER;//from   w ww.  java  2  s . c om
    TlvUtil.formatTlvAscii(1, null, out);
    Assert.assertFalse(out.isReadable());
}

From source file:org.opendaylight.protocol.bmp.spi.registry.SimpleBmpMessageRegistry.java

License:Open Source License

private int parseMessageHeader(final ByteBuf buffer) throws BmpDeserializationException {
    Preconditions.checkArgument(buffer != null && buffer.isReadable(),
            "Array of bytes cannot be null or empty.");
    Preconditions.checkArgument(buffer.readableBytes() >= COMMON_HEADER_LENGTH,
            "Too few bytes in passed array. Passed: %s. Expected: >= %s.", buffer.readableBytes(),
            COMMON_HEADER_LENGTH);//from w ww . j  a v  a2s .com
    final short messageVersion = buffer.readUnsignedByte();
    if (messageVersion != BMP_VERSION) {
        throw new BmpDeserializationException(
                "Unsuppoted BMP version. Passed: " + messageVersion + "; Expected: " + BMP_VERSION + ".");
    }
    final long messageLength = buffer.readUnsignedInt();
    final short msgType = buffer.readUnsignedByte();
    if (messageLength - COMMON_HEADER_LENGTH != buffer.readableBytes()) {
        throw new BmpDeserializationException("Size doesn't match size specified in header. Passed: "
                + buffer.readableBytes() + COMMON_HEADER_LENGTH + "; Expected: " + messageLength + ".");
    }
    return msgType;
}

From source file:org.opendaylight.protocol.pcep.auto.bandwidth.extension.BandwidthUsageObjectCodec.java

License:Open Source License

@Override
public BandwidthUsage parseObject(final ObjectHeader header, final ByteBuf bytes)
        throws PCEPDeserializerException {
    Preconditions.checkArgument(bytes != null && bytes.isReadable(),
            "Array of bytes is mandatory. Can't be null or empty.");
    if (bytes.readableBytes() % BW_LENGTH != 0) {
        throw new PCEPDeserializerException("Wrong length of array of bytes. Passed: " + bytes.readableBytes()
                + "; Expected multiple of " + BW_LENGTH + ".");
    }//from  w ww  . j a  va2 s  . c om
    final BandwidthUsageBuilder builder = new BandwidthUsageBuilder();
    builder.setIgnore(header.isIgnore());
    builder.setProcessingRule(header.isProcessingRule());
    final List<Bandwidth> bwSamples = new ArrayList<>(bytes.readableBytes() / BW_LENGTH);
    while (bytes.isReadable()) {
        bwSamples.add(new Bandwidth(ByteArray.readBytes(bytes, BW_LENGTH)));
    }
    builder.setBwSample(bwSamples);
    return builder.build();
}

From source file:org.opendaylight.protocol.pcep.ietf.stateful07.Stateful07LspObjectParser.java

License:Open Source License

@Override
public Lsp parseObject(final ObjectHeader header, final ByteBuf bytes) throws PCEPDeserializerException {
    Preconditions.checkArgument(bytes != null && bytes.isReadable(),
            "Array of bytes is mandatory. Can't be null or empty.");
    final LspBuilder builder = new LspBuilder();
    builder.setIgnore(header.isIgnore());
    builder.setProcessingRule(header.isProcessingRule());
    final int[] plspIdRaw = new int[] { bytes.readUnsignedByte(), bytes.readUnsignedByte(),
            bytes.getUnsignedByte(2), };
    builder.setPlspId(new PlspId((long) ((plspIdRaw[0] << FLAGS_SIZE) | (plspIdRaw[1] << FOUR_BITS_SHIFT)
            | (plspIdRaw[2] >> FOUR_BITS_SHIFT))));
    parseFlags(builder, bytes);/*from  ww w .j av a 2  s.c  o m*/
    final TlvsBuilder b = new TlvsBuilder();
    parseTlvs(b, bytes.slice());
    builder.setTlvs(b.build());
    return builder.build();
}

From source file:org.opendaylight.protocol.pcep.ietf.stateful07.Stateful07SrpObjectParser.java

License:Open Source License

@Override
public Srp parseObject(final ObjectHeader header, final ByteBuf bytes) throws PCEPDeserializerException {
    Preconditions.checkArgument(bytes != null && bytes.isReadable(),
            "Array of bytes is mandatory. Can't be null or empty.");
    if (bytes.readableBytes() < MIN_SIZE) {
        throw new PCEPDeserializerException("Wrong length of array of bytes. Passed: " + bytes.readableBytes()
                + "; Expected: >=" + MIN_SIZE + ".");
    }// w  w w  .  j  a  v a 2  s .co m
    final SrpBuilder builder = new SrpBuilder();
    builder.setIgnore(header.isIgnore());
    builder.setProcessingRule(header.isProcessingRule());
    parseFlags(builder, bytes);
    builder.setOperationId(new SrpIdNumber(bytes.readUnsignedInt()));
    final TlvsBuilder tlvsBuilder = new TlvsBuilder();
    parseTlvs(tlvsBuilder, bytes.slice());
    builder.setTlvs(tlvsBuilder.build());
    return builder.build();
}

From source file:org.opendaylight.protocol.pcep.impl.object.AbstractEROWithSubobjectsParser.java

License:Open Source License

protected List<Subobject> parseSubobjects(final ByteBuf buffer) throws PCEPDeserializerException {
    // Explicit approval of empty ERO
    Preconditions.checkArgument(buffer != null, "Array of bytes is mandatory. Can't be null.");
    final List<Subobject> subs = new ArrayList<>();
    while (buffer.isReadable()) {
        final boolean loose = ((buffer.getUnsignedByte(buffer.readerIndex())
                & (1 << Values.FIRST_BIT_OFFSET)) != 0) ? true : 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());
        }//  www  .j a v  a2  s .  c o  m
        LOG.debug("Attempt to parse subobject from bytes: {}", ByteBufUtil.hexDump(buffer));
        final Subobject sub = this.subobjReg.parseSubobject(type, buffer.readSlice(length), loose);
        if (sub == null) {
            LOG.warn("Unknown subobject type: {}. Ignoring subobject.", type);
        } else {
            LOG.debug("Subobject was parsed. {}", sub);
            subs.add(sub);
        }
    }
    return subs;
}

From source file:org.opendaylight.protocol.pcep.impl.object.AbstractRROWithSubobjectsParser.java

License:Open Source License

protected List<Subobject> parseSubobjects(final ByteBuf buffer) throws PCEPDeserializerException {
    Preconditions.checkArgument(buffer != null && buffer.isReadable(),
            "Array of bytes is mandatory. Can't be null or empty.");
    final List<Subobject> subs = new ArrayList<>();
    while (buffer.isReadable()) {
        final int type = buffer.readUnsignedByte();
        final int length = buffer.readUnsignedByte() - HEADER_LENGTH;
        if (length > buffer.readableBytes()) {
            throw new PCEPDeserializerException(
                    "Wrong length specified. Passed: " + length + "; Expected: <= " + buffer.readableBytes());
        }//from  w  w w.  ja v  a  2 s. c  o  m
        LOG.debug("Attempt to parse subobject from bytes: {}", ByteBufUtil.hexDump(buffer));
        final Subobject sub = this.subobjReg.parseSubobject(type, buffer.readSlice(length));
        if (sub == null) {
            LOG.warn("Unknown subobject type: {}. Ignoring subobject.", type);
        } else {
            LOG.debug("Subobject was parsed. {}", sub);
            subs.add(sub);
        }
    }
    return subs;
}

From source file:org.opendaylight.protocol.pcep.impl.object.AbstractVendorInformationObjectParser.java

License:Open Source License

@Override
public final Object parseObject(final ObjectHeader header, final ByteBuf buffer)
        throws PCEPDeserializerException {
    Preconditions.checkArgument(buffer != null && buffer.isReadable(),
            "Array of bytes is mandatory. Can't be null or empty.");
    final VendorInformationObjectBuilder builder = new VendorInformationObjectBuilder();
    builder.setEnterpriseNumber(new EnterpriseNumber(getEnterpriseNumber()));
    builder.setEnterpriseSpecificInformation(parseEnterpriseSpecificInformation(buffer));
    return builder.build();
}

From source file:org.opendaylight.protocol.pcep.impl.object.AbstractXROWithSubobjectsParser.java

License:Open Source License

protected List<Subobject> parseSubobjects(final ByteBuf buffer) throws PCEPDeserializerException {
    Preconditions.checkArgument(buffer != null && buffer.isReadable(),
            "Array of bytes is mandatory. Can't be null or empty.");
    final List<Subobject> subs = new ArrayList<>();
    while (buffer.isReadable()) {
        final boolean mandatory = ((buffer.getUnsignedByte(buffer.readerIndex())
                & (1 << Values.FIRST_BIT_OFFSET)) != 0) ? true : false;
        final int type = UnsignedBytes.checkedCast(
                (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());
        }//from   ww w . ja  va 2  s.co m
        LOG.debug("Attempt to parse subobject from bytes: {}", ByteBufUtil.hexDump(buffer));
        final Subobject sub = this.subobjReg.parseSubobject(type, buffer.readSlice(length), mandatory);
        if (sub == null) {
            LOG.warn("Unknown subobject type: {}. Ignoring subobject.", type);
        } else {
            LOG.debug("Subobject was parsed. {}", sub);
            subs.add(sub);
        }
    }
    return subs;
}

From source file:org.opendaylight.protocol.pcep.impl.object.PCEPBandwidthObjectParser.java

License:Open Source License

@Override
public Bandwidth parseObject(final ObjectHeader header, final ByteBuf bytes) throws PCEPDeserializerException {
    Preconditions.checkArgument(bytes != null && bytes.isReadable(),
            "Array of bytes is mandatory. Can't be null or empty.");
    if (bytes.readableBytes() != BANDWIDTH_F_LENGTH) {
        throw new PCEPDeserializerException("Wrong length of array of bytes. Passed: " + bytes.readableBytes()
                + "; Expected: " + BANDWIDTH_F_LENGTH + ".");
    }//from  ww w.jav a2s . co m
    final BandwidthBuilder builder = new BandwidthBuilder();
    builder.setIgnore(header.isIgnore());
    builder.setProcessingRule(header.isProcessingRule());
    builder.setBandwidth(
            new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.network.concepts.rev131125.Bandwidth(
                    ByteArray.getAllBytes(bytes)));
    return builder.build();
}