2 * Copyright 2015 Open Networking Laboratory
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
16 package org.onosproject.bgpio.protocol.link_state;
18 import java.util.Objects;
20 import org.jboss.netty.buffer.ChannelBuffer;
21 import org.onosproject.bgpio.exceptions.BGPParseException;
22 import org.onosproject.bgpio.types.BGPErrorType;
23 import org.onosproject.bgpio.util.Constants;
24 import org.slf4j.Logger;
25 import org.slf4j.LoggerFactory;
27 import com.google.common.base.MoreObjects;
30 * Implementation of Node Identifier which includes local node descriptor/remote node descriptors.
32 public class BGPNodeLSIdentifier {
34 protected static final Logger log = LoggerFactory.getLogger(BGPNodeLSIdentifier.class);
35 private NodeDescriptors nodeDescriptors;
40 public BGPNodeLSIdentifier() {
41 this.nodeDescriptors = null;
45 * Constructor to initialize fields.
47 * @param nodeDescriptors local/remote node descriptor
49 public BGPNodeLSIdentifier(NodeDescriptors nodeDescriptors) {
50 this.nodeDescriptors = nodeDescriptors;
54 * Parse local node descriptors.
56 * @param cb ChannelBuffer
57 * @param protocolId protocol identifier
58 * @return object of this BGPNodeLSIdentifier
59 * @throws BGPParseException while parsing local node descriptors
61 public static BGPNodeLSIdentifier parseLocalNodeDescriptors(ChannelBuffer cb, byte protocolId)
62 throws BGPParseException {
63 ChannelBuffer tempBuf = cb;
64 short type = cb.readShort();
65 short length = cb.readShort();
66 if (cb.readableBytes() < length) {
67 throw new BGPParseException(BGPErrorType.UPDATE_MESSAGE_ERROR, BGPErrorType.OPTIONAL_ATTRIBUTE_ERROR,
68 tempBuf.readBytes(cb.readableBytes() + Constants.TYPE_AND_LEN));
70 NodeDescriptors nodeDescriptors = new NodeDescriptors();
71 ChannelBuffer tempCb = cb.readBytes(length);
73 if (type == NodeDescriptors.LOCAL_NODE_DES_TYPE) {
74 nodeDescriptors = NodeDescriptors.read(tempCb, length, type, protocolId);
76 throw new BGPParseException(BGPErrorType.UPDATE_MESSAGE_ERROR, BGPErrorType.MALFORMED_ATTRIBUTE_LIST, null);
78 return new BGPNodeLSIdentifier(nodeDescriptors);
82 * Returns node descriptors.
84 * @return node descriptors
86 public NodeDescriptors getNodedescriptors() {
87 return this.nodeDescriptors;
91 public boolean equals(Object obj) {
95 if (obj instanceof BGPNodeLSIdentifier) {
96 BGPNodeLSIdentifier other = (BGPNodeLSIdentifier) obj;
97 return Objects.equals(nodeDescriptors, other.nodeDescriptors);
103 public int hashCode() {
104 return Objects.hash(nodeDescriptors);
108 public String toString() {
109 return MoreObjects.toStringHelper(getClass())
110 .add("NodeDescriptors", nodeDescriptors)