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.types.attr;
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.types.BgpValueType;
24 import org.onosproject.bgpio.util.Validation;
25 import org.slf4j.Logger;
26 import org.slf4j.LoggerFactory;
28 import com.google.common.base.MoreObjects;
31 * Implements BGP prefix metric attribute.
33 public class BgpPrefixAttrMetric implements BgpValueType {
35 protected static final Logger log = LoggerFactory
36 .getLogger(BgpPrefixAttrMetric.class);
38 public static final int ATTR_PREFIX_METRIC = 1155;
39 public static final int ATTR_PREFIX_LEN = 4;
41 /* TE Default Metric */
42 private final int linkPfxMetric;
45 * Constructor to initialize value.
47 * @param linkPfxMetric Prefix Metric
49 public BgpPrefixAttrMetric(int linkPfxMetric) {
50 this.linkPfxMetric = linkPfxMetric;
54 * Returns object of this class with specified values.
56 * @param linkPfxMetric Prefix Metric
57 * @return object of BgpPrefixAttrMetric
59 public static BgpPrefixAttrMetric of(final int linkPfxMetric) {
60 return new BgpPrefixAttrMetric(linkPfxMetric);
64 * Reads the Prefix Metric.
66 * @param cb ChannelBuffer
67 * @return object of BgpPrefixAttrMetric
68 * @throws BgpParseException while parsing BgpPrefixAttrMetric
70 public static BgpPrefixAttrMetric read(ChannelBuffer cb)
71 throws BgpParseException {
74 short lsAttrLength = cb.readShort(); // 4 Bytes
76 if ((lsAttrLength != ATTR_PREFIX_LEN)
77 || (cb.readableBytes() < lsAttrLength)) {
78 Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR,
79 BgpErrorType.ATTRIBUTE_LENGTH_ERROR,
83 linkPfxMetric = cb.readInt();
85 return BgpPrefixAttrMetric.of(linkPfxMetric);
89 * Returns the Prefix Metric.
91 * @return Prefix Metric
93 public int attrPfxMetric() {
98 public short getType() {
99 return ATTR_PREFIX_METRIC;
103 public int hashCode() {
104 return Objects.hash(linkPfxMetric);
108 public boolean equals(Object obj) {
113 if (obj instanceof BgpPrefixAttrMetric) {
114 BgpPrefixAttrMetric other = (BgpPrefixAttrMetric) obj;
115 return Objects.equals(linkPfxMetric, other.linkPfxMetric);
121 public int write(ChannelBuffer cb) {
122 // TODO This will be implemented in the next version
127 public String toString() {
128 return MoreObjects.toStringHelper(getClass())
129 .add("linkPfxMetric", linkPfxMetric).toString();
133 public int compareTo(Object o) {
134 // TODO Auto-generated method stub