Reduce ByteBuf.writeZero() usage
[bgpcep.git] / bgp / extensions / evpn / src / main / java / org / opendaylight / protocol / bgp / evpn / impl / esi / types / LacpParser.java
1 /*
2  * Copyright (c) 2016 Cisco Systems, Inc. and others.  All rights reserved.
3  *
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
7  */
8 package org.opendaylight.protocol.bgp.evpn.impl.esi.types;
9
10 import static com.google.common.base.Preconditions.checkArgument;
11 import static org.opendaylight.protocol.bgp.evpn.impl.esi.types.EsiModelUtil.extractLacpMac;
12 import static org.opendaylight.protocol.bgp.evpn.impl.esi.types.EsiModelUtil.extractPK;
13
14 import io.netty.buffer.ByteBuf;
15 import org.opendaylight.protocol.util.ByteArray;
16 import org.opendaylight.protocol.util.ByteBufUtils;
17 import org.opendaylight.protocol.util.ByteBufWriteUtil;
18 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.IetfYangUtil;
19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.evpn.rev180329.EsiType;
20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.evpn.rev180329.esi.Esi;
21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.evpn.rev180329.esi.esi.LacpAutoGeneratedCase;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.evpn.rev180329.esi.esi.LacpAutoGeneratedCaseBuilder;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.evpn.rev180329.esi.esi.lacp.auto.generated._case.LacpAutoGenerated;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.evpn.rev180329.esi.esi.lacp.auto.generated._case.LacpAutoGeneratedBuilder;
25 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
26
27 final class LacpParser extends AbstractEsiType {
28
29     @Override
30     public ByteBuf serializeBody(final Esi esi, final ByteBuf body) {
31         checkArgument(esi instanceof LacpAutoGeneratedCase,
32             "Unknown esi instance. Passed %s. Needed LacpAutoGeneratedCase.", esi);
33         final LacpAutoGenerated lacp = ((LacpAutoGeneratedCase) esi).getLacpAutoGenerated();
34         body.writeBytes(IetfYangUtil.INSTANCE.bytesFor(lacp.getCeLacpMacAddress()));
35         ByteBufWriteUtil.writeUnsignedShort(lacp.getCeLacpPortKey(), body);
36         return body.writeByte(0);
37     }
38
39     @Override
40     protected EsiType getType() {
41         return EsiType.LacpAutoGenerated;
42     }
43
44     @Override
45     public Esi serializeEsi(final ContainerNode esi) {
46         return new LacpAutoGeneratedCaseBuilder()
47                 .setLacpAutoGenerated(new LacpAutoGeneratedBuilder()
48                     .setCeLacpMacAddress(extractLacpMac(esi))
49                     .setCeLacpPortKey(extractPK(esi))
50                     .build())
51                 .build();
52     }
53
54     @Override
55     public Esi parseEsi(final ByteBuf buffer) {
56         return new LacpAutoGeneratedCaseBuilder()
57                 .setLacpAutoGenerated(new LacpAutoGeneratedBuilder()
58                     .setCeLacpMacAddress(IetfYangUtil.INSTANCE.macAddressFor(
59                         ByteArray.readBytes(buffer, MAC_ADDRESS_LENGTH)))
60                     .setCeLacpPortKey(ByteBufUtils.readUint16(buffer))
61                     .build())
62                 .build();
63     }
64 }