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.subobject;
10 import static com.google.common.base.Preconditions.checkArgument;
12 import io.netty.buffer.ByteBuf;
13 import io.netty.buffer.Unpooled;
14 import org.opendaylight.protocol.pcep.spi.PCEPDeserializerException;
15 import org.opendaylight.protocol.pcep.spi.RROSubobjectParser;
16 import org.opendaylight.protocol.pcep.spi.RROSubobjectSerializer;
17 import org.opendaylight.protocol.pcep.spi.RROSubobjectUtil;
18 import org.opendaylight.protocol.util.ByteArray;
19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.reported.route.object.rro.Subobject;
20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.reported.route.object.rro.SubobjectBuilder;
21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev150820.PathKey;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev150820.PceId;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev150820._record.route.subobjects.subobject.type.PathKeyCase;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev150820._record.route.subobjects.subobject.type.PathKeyCaseBuilder;
25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev150820._record.route.subobjects.subobject.type.path.key._case.PathKeyBuilder;
26 import org.opendaylight.yangtools.yang.common.netty.ByteBufUtils;
28 public class RROPathKey32SubobjectParser implements RROSubobjectParser, RROSubobjectSerializer {
29 public static final int TYPE = 64;
31 private static final int PK_F_OFFSET = 0;
32 private static final int PK_F_LENGTH = 2;
33 private static final int PCE_ID_F_LENGTH = 4;
34 private static final int PCE_ID_F_OFFSET = PK_F_OFFSET + PK_F_LENGTH;
35 private static final int CONTENT_LENGTH = PCE_ID_F_OFFSET + PCE_ID_F_LENGTH;
38 public Subobject parseSubobject(final ByteBuf buffer) throws PCEPDeserializerException {
39 checkArgument(buffer != null && buffer.isReadable(),
40 "Array of bytes is mandatory. Cannot be null or empty.");
41 if (buffer.readableBytes() != CONTENT_LENGTH) {
42 throw new PCEPDeserializerException("Wrong length of array of bytes. Passed: " + buffer.readableBytes()
43 + "; Expected: >" + CONTENT_LENGTH + ".");
45 return new SubobjectBuilder()
46 .setSubobjectType(new PathKeyCaseBuilder()
47 .setPathKey(new PathKeyBuilder()
48 .setPathKey(new PathKey(ByteBufUtils.readUint16(buffer)))
49 .setPceId(new PceId(ByteArray.readBytes(buffer, PCE_ID_F_LENGTH)))
56 public void serializeSubobject(final Subobject subobject, final ByteBuf buffer) {
57 checkArgument(subobject.getSubobjectType() instanceof PathKeyCase,
58 "Unknown subobject instance. Passed %s. Needed PathKey.", subobject.getSubobjectType().getClass());
59 final PathKeyCase pkcase = (PathKeyCase) subobject.getSubobjectType();
60 final org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev150820._record.route
61 .subobjects.subobject.type.path.key._case.PathKey pk = pkcase.getPathKey();
62 final ByteBuf body = Unpooled.buffer();
64 final PceId pceId = pk.getPceId();
65 checkArgument(pceId != null, "PceId is mandatory.");
67 final byte[] idBytes = pceId.getValue();
68 if (idBytes.length == RROPathKey128SubobjectParser.PCE128_ID_F_LENGTH) {
69 RROPathKey128SubobjectParser.serializeSubobject(subobject, buffer);
71 final PathKey pathKey = pk.getPathKey();
72 checkArgument(pathKey != null, "PathKey is mandatory.");
73 ByteBufUtils.write(body, pathKey.getValue());
74 checkArgument(idBytes.length == PCE_ID_F_LENGTH, "PceId 32 Bit required.");
75 body.writeBytes(idBytes);
76 RROSubobjectUtil.formatSubobject(TYPE, body, buffer);