2 * Copyright (c) 2014 Cisco Systems, Inc. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
8 package org.opendaylight.protocol.pcep.parser.tlv;
10 import static org.opendaylight.protocol.util.ByteBufWriteUtil.writeUnsignedInt;
12 import com.google.common.base.Preconditions;
13 import io.netty.buffer.ByteBuf;
14 import io.netty.buffer.Unpooled;
15 import org.opendaylight.protocol.pcep.spi.PCEPDeserializerException;
16 import org.opendaylight.protocol.pcep.spi.TlvParser;
17 import org.opendaylight.protocol.pcep.spi.TlvSerializer;
18 import org.opendaylight.protocol.pcep.spi.TlvUtil;
19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.iana.rev130816.EnterpriseNumber;
20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.Tlv;
21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.vs.tlv.VsTlv;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.vs.tlv.VsTlvBuilder;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.vs.tlv.vs.tlv.VendorPayload;
26 * Vs-tlv model has been deprecated, vendor-information-tlv should be used instead.
27 * Therefore parsers/serializers wont be need it any more and this class is slated
28 * for removal in a future release.
31 public abstract class AbstractVendorSpecificTlvParser implements TlvParser, TlvSerializer {
33 public static final int TYPE = 27;
36 public void serializeTlv(final Tlv tlv, final ByteBuf buffer) {
37 Preconditions.checkArgument(tlv instanceof VsTlv, "Vendor Specific Tlv is mandatory.");
38 final VsTlv vsTlv = (VsTlv) tlv;
39 final ByteBuf body = Unpooled.buffer();
40 if (vsTlv.getEnterpriseNumber().getValue() == getEnterpriseNumber()) {
41 Preconditions.checkArgument(vsTlv.getEnterpriseNumber() != null, "EnterpriseNumber is mandatory.");
42 writeUnsignedInt(vsTlv.getEnterpriseNumber().getValue(), body);
43 serializeVendorPayload(vsTlv.getVendorPayload(), body);
44 TlvUtil.formatTlv(TYPE, body, buffer);
49 public VsTlv parseTlv(final ByteBuf buffer) throws PCEPDeserializerException {
53 final VsTlvBuilder vsTlvBuider = new VsTlvBuilder();
54 final long en = buffer.readUnsignedInt();
55 if (en == getEnterpriseNumber()) {
56 vsTlvBuider.setEnterpriseNumber(new EnterpriseNumber(getEnterpriseNumber()));
57 VendorPayload vendorPayload = null;
58 if (buffer.isReadable()) {
59 final ByteBuf payloadBytes = buffer.slice();
60 vendorPayload = parseVendorPayload(payloadBytes);
61 if (vendorPayload != null) {
62 vsTlvBuider.setVendorPayload(vendorPayload);
66 return vsTlvBuider.build();
69 protected abstract void serializeVendorPayload(final VendorPayload payload, final ByteBuf buffer);
71 protected abstract long getEnterpriseNumber();
73 protected abstract VendorPayload parseVendorPayload(final ByteBuf payloadBytes) throws PCEPDeserializerException;