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.ietf.stateful07;
10 import com.google.common.base.Preconditions;
11 import io.netty.buffer.ByteBuf;
12 import io.netty.buffer.Unpooled;
13 import org.opendaylight.protocol.pcep.spi.PCEPDeserializerException;
14 import org.opendaylight.protocol.pcep.spi.TlvParser;
15 import org.opendaylight.protocol.pcep.spi.TlvSerializer;
16 import org.opendaylight.protocol.pcep.spi.TlvUtil;
17 import org.opendaylight.protocol.util.BitArray;
18 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.stateful.capability.tlv.Stateful;
19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.stateful.capability.tlv.StatefulBuilder;
20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.Tlv;
23 * Parser for {@link Stateful}
25 public class Stateful07StatefulCapabilityTlvParser implements TlvParser, TlvSerializer {
27 public static final int TYPE = 16;
29 protected static final int FLAGS_F_LENGTH = 32;
31 protected static final int U_FLAG_OFFSET = 31;
34 public Stateful parseTlv(final ByteBuf buffer) throws PCEPDeserializerException {
38 if (buffer.readableBytes() < FLAGS_F_LENGTH / Byte.SIZE) {
39 throw new PCEPDeserializerException("Wrong length of array of bytes. Passed: " + buffer.readableBytes() + "; Expected: >= "
40 + FLAGS_F_LENGTH / Byte.SIZE + ".");
42 final StatefulBuilder sb = new StatefulBuilder();
43 parseFlags(sb, buffer);
47 protected void parseFlags(final StatefulBuilder sb, final ByteBuf buffer) {
48 final BitArray flags = BitArray.valueOf(buffer, FLAGS_F_LENGTH);
49 sb.setLspUpdateCapability(flags.get(U_FLAG_OFFSET));
53 public void serializeTlv(final Tlv tlv, final ByteBuf buffer) {
54 Preconditions.checkArgument(tlv instanceof Stateful, "StatefulCapabilityTlv is mandatory.");
55 final Stateful sct = (Stateful) tlv;
56 TlvUtil.formatTlv(TYPE, Unpooled.wrappedBuffer(serializeFlags(sct).array()), buffer);
59 protected BitArray serializeFlags(final Stateful sct) {
60 final BitArray flags = new BitArray(FLAGS_F_LENGTH);
61 flags.set(U_FLAG_OFFSET, sct.isLspUpdateCapability());