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/*
* Copyright 2015 Open Networking Laboratory
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.onosproject.bgpio.types.attr;
import java.util.Arrays;
import org.jboss.netty.buffer.ChannelBuffer;
import org.onosproject.bgpio.exceptions.BGPParseException;
import org.onosproject.bgpio.types.BGPErrorType;
import org.onosproject.bgpio.types.BGPValueType;
import org.onosproject.bgpio.util.Validation;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.google.common.base.MoreObjects;
/**
* Implements BGP link name attribute.
*/
public class BgpLinkAttrName implements BGPValueType {
protected static final Logger log = LoggerFactory
.getLogger(BgpLinkAttrName.class);
public static final int ATTRLINK_NAME = 1098;
/* Link Name */
private byte[] linkName;
/**
* Constructor to initialize the values.
*
* @param linkName link name
*/
public BgpLinkAttrName(byte[] linkName) {
this.linkName = Arrays.copyOf(linkName, linkName.length);
}
/**
* Returns object of this class with specified values.
*
* @param linkName Prefix Metric
* @return object of BgpLinkAttrName
*/
public static BgpLinkAttrName of(byte[] linkName) {
return new BgpLinkAttrName(linkName);
}
/**
* Reads the BGP link attributes Name.
*
* @param cb Channel buffer
* @return object of type BgpLinkAttrName
* @throws BGPParseException while parsing BgpLinkAttrName
*/
public static BgpLinkAttrName read(ChannelBuffer cb)
throws BGPParseException {
byte[] linkName;
short lsAttrLength = cb.readShort();
if (cb.readableBytes() < lsAttrLength) {
Validation.validateLen(BGPErrorType.UPDATE_MESSAGE_ERROR,
BGPErrorType.ATTRIBUTE_LENGTH_ERROR,
lsAttrLength);
}
linkName = new byte[lsAttrLength];
cb.readBytes(linkName);
return BgpLinkAttrName.of(linkName);
}
/**
* Returns the link name.
*
* @return link name
*/
public byte[] attrLinkName() {
return linkName;
}
@Override
public short getType() {
return ATTRLINK_NAME;
}
@Override
public int hashCode() {
return Arrays.hashCode(linkName);
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj instanceof BgpLinkAttrName) {
BgpLinkAttrName other = (BgpLinkAttrName) obj;
return Arrays.equals(linkName, other.linkName);
}
return false;
}
@Override
public int write(ChannelBuffer cb) {
// TODO This will be implemented in the next version
return 0;
}
@Override
public String toString() {
return MoreObjects.toStringHelper(getClass()).omitNullValues()
.add("linkName", linkName).toString();
}
}
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