2 * Copyright (c) 2013 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 com.google.common.base.Preconditions.checkArgument;
11 import static org.opendaylight.protocol.util.ByteBufWriteUtil.writeUnsignedShort;
13 import io.netty.buffer.ByteBuf;
14 import io.netty.buffer.Unpooled;
15 import java.util.ArrayList;
16 import java.util.List;
17 import org.opendaylight.protocol.pcep.spi.PCEPDeserializerException;
18 import org.opendaylight.protocol.pcep.spi.TlvParser;
19 import org.opendaylight.protocol.pcep.spi.TlvSerializer;
20 import org.opendaylight.protocol.pcep.spi.TlvUtil;
21 import org.opendaylight.protocol.util.ByteBufUtils;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.OfId;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.Tlv;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.of.list.tlv.OfList;
25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.of.list.tlv.OfListBuilder;
28 * Parser for {@link OfList}.
30 public class OFListTlvParser implements TlvParser, TlvSerializer {
32 public static final int TYPE = 4;
34 private static final int OF_CODE_ELEMENT_LENGTH = 2;
37 public OfList parseTlv(final ByteBuf buffer) throws PCEPDeserializerException {
41 if (buffer.readableBytes() % OF_CODE_ELEMENT_LENGTH != 0) {
42 throw new PCEPDeserializerException("Wrong length of array of bytes. Passed: " + buffer.readableBytes()
45 final List<OfId> ofCodes = new ArrayList<>();
46 while (buffer.isReadable()) {
47 ofCodes.add(new OfId(ByteBufUtils.readUint16(buffer)));
49 return new OfListBuilder().setCodes(ofCodes).build();
53 public void serializeTlv(final Tlv tlv, final ByteBuf buffer) {
54 checkArgument(tlv instanceof OfList, "OFListTlv is mandatory.");
55 final OfList oft = (OfList) tlv;
56 final ByteBuf body = Unpooled.buffer();
57 final List<OfId> ofCodes = oft.getCodes();
58 for (OfId id : ofCodes) {
59 writeUnsignedShort(id.getValue(), body);
61 TlvUtil.formatTlv(TYPE, body, buffer);