2 * Copyright (c) 2015 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
9 package org.opendaylight.protocol.bgp.parser.impl.message.update;
11 import static java.util.Objects.requireNonNull;
13 import com.google.common.base.Preconditions;
14 import io.netty.buffer.ByteBuf;
15 import io.netty.buffer.Unpooled;
16 import java.util.ArrayList;
17 import java.util.List;
18 import org.opendaylight.protocol.bgp.parser.BGPDocumentedException;
19 import org.opendaylight.protocol.bgp.parser.BGPParsingException;
20 import org.opendaylight.protocol.bgp.parser.spi.AttributeParser;
21 import org.opendaylight.protocol.bgp.parser.spi.AttributeSerializer;
22 import org.opendaylight.protocol.bgp.parser.spi.AttributeUtil;
23 import org.opendaylight.protocol.bgp.parser.spi.extended.community.ExtendedCommunityRegistry;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev171207.path.attributes.Attributes;
25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev171207.path.attributes.AttributesBuilder;
26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev171207.path.attributes.attributes.ExtendedCommunities;
27 import org.opendaylight.yangtools.yang.binding.DataObject;
29 public final class ExtendedCommunitiesAttributeParser implements AttributeParser, AttributeSerializer {
31 public static final int TYPE = 16;
33 private final ExtendedCommunityRegistry ecReg;
35 public ExtendedCommunitiesAttributeParser(final ExtendedCommunityRegistry ecReg) {
36 this.ecReg = requireNonNull(ecReg);
40 public void parseAttribute(final ByteBuf buffer, final AttributesBuilder builder) throws BGPDocumentedException, BGPParsingException {
41 final List<ExtendedCommunities> set = new ArrayList<>();
42 while (buffer.isReadable()) {
43 final ExtendedCommunities exComm = this.ecReg.parseExtendedCommunity(buffer);
48 builder.setExtendedCommunities(set);
52 public void serializeAttribute(final DataObject attribute, final ByteBuf byteAggregator) {
53 Preconditions.checkArgument(attribute instanceof Attributes, "Attribute parameter is not a PathAttribute object.");
54 final List<ExtendedCommunities> communitiesList = ((Attributes) attribute).getExtendedCommunities();
55 if (communitiesList == null || communitiesList.isEmpty()) {
58 final ByteBuf extendedCommunitiesBuffer = Unpooled.buffer();
59 for (final ExtendedCommunities extendedCommunities : communitiesList) {
60 this.ecReg.serializeExtendedCommunity(extendedCommunities, extendedCommunitiesBuffer);
62 if (extendedCommunitiesBuffer.readableBytes() > 0) {
63 AttributeUtil.formatAttribute(AttributeUtil.OPTIONAL | AttributeUtil.TRANSITIVE, TYPE, extendedCommunitiesBuffer, byteAggregator);