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.bgp.linkstate.attribute.sr;
10 import io.netty.buffer.ByteBuf;
11 import io.netty.buffer.Unpooled;
12 import java.util.BitSet;
13 import org.opendaylight.protocol.util.ByteArray;
14 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.link.state.SrAdjId;
15 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.link.state.SrAdjIdBuilder;
16 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.link.state.SrLanAdjId;
17 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.link.state.SrLanAdjIdBuilder;
18 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.rev150206.AdjacencyFlags;
19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.rev150206.SidLabel;
20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.rev150206.Weight;
21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.network.concepts.rev131125.IsoSystemIdentifier;
23 public class SrLinkAttributesParser {
25 private static final int ISO_SYSTEM_ID_SIZE = 6;
28 private static int ADDRESS_FAMILY_FLAG = 7;
29 private static int BACKUP_FLAG = 6;
30 private static int VALUE_FLAG = 5;
31 private static int LOCAL_FLAG = 4;
32 private static int SET_FLAG = 3;
33 private static final int FLAGS_SIZE = 1;
35 public static SrAdjId parseAdjacencySegmentIdentifier(final ByteBuf buffer) {
36 if (!buffer.isReadable()) {
37 return new SrAdjIdBuilder().build();
39 final SrAdjIdBuilder srAdjIdBuilder = new SrAdjIdBuilder();
40 final BitSet flags = BitSet.valueOf(ByteArray.readBytes(buffer, FLAGS_SIZE));
41 srAdjIdBuilder.setFlags(new AdjacencyFlags(flags.get(ADDRESS_FAMILY_FLAG), flags.get(BACKUP_FLAG), flags.get(LOCAL_FLAG), flags.get(SET_FLAG), flags.get(VALUE_FLAG)));
42 srAdjIdBuilder.setWeight(new Weight(buffer.readUnsignedByte()));
43 srAdjIdBuilder.setSid(new SidLabel(ByteArray.readAllBytes(buffer)));
44 return srAdjIdBuilder.build();
47 public static ByteBuf serializeAdjacencySegmentIdentifier(final SrAdjId srAdjId) {
48 final ByteBuf value = Unpooled.buffer();
49 final AdjacencyFlags srAdjIdFlags = srAdjId.getFlags();
50 final BitSet flags = new BitSet(FLAGS_SIZE);
51 if (srAdjIdFlags.isAddressFamily() != null) {
52 flags.set(ADDRESS_FAMILY_FLAG, srAdjIdFlags.isAddressFamily());
54 if (srAdjIdFlags.isBackup() != null) {
55 flags.set(BACKUP_FLAG, srAdjIdFlags.isBackup());
57 if (srAdjIdFlags.isValue() != null) {
58 flags.set(VALUE_FLAG, srAdjIdFlags.isValue());
60 if (srAdjIdFlags.isLocal() != null) {
61 flags.set(LOCAL_FLAG, srAdjIdFlags.isLocal());
63 if (srAdjIdFlags.isSetFlag() != null) {
64 flags.set(SET_FLAG, srAdjIdFlags.isSetFlag());
66 value.writeBytes(flags.toByteArray());
67 value.writeByte(srAdjId.getWeight().getValue());
68 value.writeBytes(srAdjId.getSid().getValue());
72 public static SrLanAdjId parseLanAdjacencySegmentIdentifier(final ByteBuf buffer) {
73 if (!buffer.isReadable()) {
74 return new SrLanAdjIdBuilder().build();
76 final SrLanAdjIdBuilder srLanAdjIdBuilder = new SrLanAdjIdBuilder();
77 final BitSet flags = BitSet.valueOf(ByteArray.readBytes(buffer, FLAGS_SIZE));
78 srLanAdjIdBuilder.setFlags(new AdjacencyFlags(flags.get(ADDRESS_FAMILY_FLAG), flags.get(BACKUP_FLAG), flags.get(LOCAL_FLAG), flags.get(SET_FLAG), flags.get(VALUE_FLAG)));
79 srLanAdjIdBuilder.setWeight(new Weight(buffer.readUnsignedByte()));
80 srLanAdjIdBuilder.setIsoSystemId(new IsoSystemIdentifier(ByteArray.readBytes(buffer, ISO_SYSTEM_ID_SIZE)));
81 srLanAdjIdBuilder.setSid(new SidLabel(ByteArray.readAllBytes(buffer)));
82 return srLanAdjIdBuilder.build();
85 public static ByteBuf serializeLanAdjacencySegmentIdentifier(final SrLanAdjId srLanAdjId) {
86 final ByteBuf value = Unpooled.buffer();
87 final AdjacencyFlags srAdjIdFlags = srLanAdjId.getFlags();
88 final BitSet flags = new BitSet(FLAGS_SIZE);
89 if (srAdjIdFlags.isAddressFamily() != null) {
90 flags.set(ADDRESS_FAMILY_FLAG, srAdjIdFlags.isAddressFamily());
92 if (srAdjIdFlags.isBackup() != null) {
93 flags.set(BACKUP_FLAG, srAdjIdFlags.isBackup());
95 if (srAdjIdFlags.isValue() != null) {
96 flags.set(VALUE_FLAG, srAdjIdFlags.isValue());
98 if (srAdjIdFlags.isLocal() != null) {
99 flags.set(LOCAL_FLAG, srAdjIdFlags.isLocal());
101 if (srAdjIdFlags.isSetFlag() != null) {
102 flags.set(SET_FLAG, srAdjIdFlags.isSetFlag());
104 value.writeBytes(flags.toByteArray());
105 value.writeByte(srLanAdjId.getWeight().getValue());
106 value.writeBytes(srLanAdjId.getIsoSystemId().getValue());
107 value.writeBytes(srLanAdjId.getSid().getValue());