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.Arrays;
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 opaque data attribute.
33 public final class BgpPrefixAttrOpaqueData implements BgpValueType {
35 protected static final Logger log = LoggerFactory
36 .getLogger(BgpPrefixAttrOpaqueData.class);
38 public static final int ATTR_PREFIX_OPAQUEDATA = 1157;
40 /* Opaque Node Attribute */
41 private final byte[] opaquePrefixAttribute;
44 * Constructor to initialize the values.
46 * @param opaquePrefixAttribute opaque prefix data
48 public BgpPrefixAttrOpaqueData(byte[] opaquePrefixAttribute) {
49 this.opaquePrefixAttribute = Arrays
50 .copyOf(opaquePrefixAttribute, opaquePrefixAttribute.length);
54 * Returns object of this class with specified values.
56 * @param opaquePrefixAttribute opaque prefix data
57 * @return object of BgpPrefixAttrOpaqueData
59 public static BgpPrefixAttrOpaqueData of(final byte[] opaquePrefixAttribute) {
60 return new BgpPrefixAttrOpaqueData(opaquePrefixAttribute);
64 * Reads the Opaque Prefix Attribute.
66 * @param cb ChannelBuffer
67 * @return object of BgpPrefixAttrOpaqueData
68 * @throws BgpParseException while parsing BgpPrefixAttrOpaqueData
70 public static BgpPrefixAttrOpaqueData read(ChannelBuffer cb)
71 throws BgpParseException {
72 byte[] opaquePrefixAttribute;
74 short lsAttrLength = cb.readShort();
75 opaquePrefixAttribute = new byte[lsAttrLength];
77 if (cb.readableBytes() < lsAttrLength) {
78 Validation.validateLen(BgpErrorType.UPDATE_MESSAGE_ERROR,
79 BgpErrorType.ATTRIBUTE_LENGTH_ERROR,
83 cb.readBytes(opaquePrefixAttribute);
85 return BgpPrefixAttrOpaqueData.of(opaquePrefixAttribute);
89 * Returns the Opaque prefix attribute name.
91 * @return opaque prefix name
93 public byte[] getOpaquePrefixAttribute() {
94 return opaquePrefixAttribute;
98 public short getType() {
99 return ATTR_PREFIX_OPAQUEDATA;
103 public int hashCode() {
104 return Arrays.hashCode(opaquePrefixAttribute);
108 public boolean equals(Object obj) {
113 if (obj instanceof BgpPrefixAttrOpaqueData) {
114 BgpPrefixAttrOpaqueData other = (BgpPrefixAttrOpaqueData) obj;
115 return Arrays.equals(opaquePrefixAttribute,
116 other.opaquePrefixAttribute);
122 public int write(ChannelBuffer cb) {
123 // TODO This will be implemented in the next version
128 public String toString() {
129 return MoreObjects.toStringHelper(getClass()).omitNullValues()
130 .add("opaquePrefixAttribute", getOpaquePrefixAttribute())
135 public int compareTo(Object o) {
136 // TODO Auto-generated method stub