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.ietf.stateful02;
10 import static org.opendaylight.protocol.util.ByteBufWriteUtil.writeBitSet;
12 import com.google.common.base.Preconditions;
13 import io.netty.buffer.ByteBuf;
14 import io.netty.buffer.Unpooled;
15 import java.util.BitSet;
16 import org.opendaylight.protocol.pcep.spi.PCEPDeserializerException;
17 import org.opendaylight.protocol.pcep.spi.TlvParser;
18 import org.opendaylight.protocol.pcep.spi.TlvSerializer;
19 import org.opendaylight.protocol.pcep.spi.TlvUtil;
20 import org.opendaylight.protocol.util.ByteArray;
21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.crabbe.stateful._02.rev140110.stateful.capability.tlv.Stateful;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.crabbe.stateful._02.rev140110.stateful.capability.tlv.StatefulBuilder;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.Tlv;
25 public class Stateful02StatefulCapabilityTlvParser implements TlvParser, TlvSerializer {
27 public static final int TYPE = 16;
29 protected static final int FLAGS_F_LENGTH = 4;
31 protected static final int S_FLAG_OFFSET = 30;
32 protected static final int U_FLAG_OFFSET = 31;
35 public Stateful parseTlv(final ByteBuf buffer) throws PCEPDeserializerException {
39 if (buffer.readableBytes() < FLAGS_F_LENGTH) {
40 throw new PCEPDeserializerException("Wrong length of array of bytes. Passed: " + buffer.readableBytes() + "; Expected: >= "
41 + FLAGS_F_LENGTH + ".");
43 final BitSet flags = ByteArray.bytesToBitSet(ByteArray.readBytes(buffer, FLAGS_F_LENGTH));
44 final StatefulBuilder sb = new StatefulBuilder();
45 sb.setIncludeDbVersion(flags.get(S_FLAG_OFFSET));
46 sb.setLspUpdateCapability(flags.get(U_FLAG_OFFSET));
51 public void serializeTlv(final Tlv tlv, final ByteBuf buffer) {
52 Preconditions.checkArgument(tlv != null && tlv instanceof Stateful, "StatefulCapabilityTlv is mandatory.");
53 final Stateful sct = (Stateful) tlv;
54 final ByteBuf body = Unpooled.buffer();
55 final BitSet flags = new BitSet(FLAGS_F_LENGTH * Byte.SIZE);
56 if (sct.isLspUpdateCapability() != null) {
57 flags.set(U_FLAG_OFFSET, sct.isLspUpdateCapability());
59 if (sct.isIncludeDbVersion() != null) {
60 flags.set(S_FLAG_OFFSET, sct.isIncludeDbVersion());
62 writeBitSet(flags, FLAGS_F_LENGTH, body);
63 TlvUtil.formatTlv(TYPE, body, buffer);