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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.Objects;
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;
/**
* BGP Multi-Topology ID of the LS attribute.
*/
public class BgpAttrNodeMultiTopologyId implements BGPValueType {
private static final Logger log = LoggerFactory
.getLogger(BgpAttrNodeMultiTopologyId.class);
public static final int ATTRNODE_MULTITOPOLOGY = 263;
/* Opaque Node Attribute */
private short[] multiTopologyId;
/**
* Constructor to initialize the Node attribute multi-topology ID.
*
* @param multiTopologyId multi-topology ID
*/
BgpAttrNodeMultiTopologyId(short[] multiTopologyId) {
this.multiTopologyId = multiTopologyId;
}
/**
* Reads the Multi-topology ID of Node attribute.
*
* @param cb ChannelBuffer
* @return Constructor of BgpAttrNodeMultiTopologyId
* @throws BGPParseException while parsing BgpAttrNodeMultiTopologyId
*/
public static BgpAttrNodeMultiTopologyId read(ChannelBuffer cb)
throws BGPParseException {
log.debug("BgpAttrNodeMultiTopologyId");
short lsAttrLength = cb.readShort();
int len = lsAttrLength / 2; // Length is 2*n and n is the number of MT-IDs
if (cb.readableBytes() < lsAttrLength) {
Validation.validateLen(BGPErrorType.UPDATE_MESSAGE_ERROR,
BGPErrorType.ATTRIBUTE_LENGTH_ERROR,
cb.readableBytes());
}
short[] multiTopologyId;
multiTopologyId = new short[len];
for (int i = 0; i < len; i++) {
multiTopologyId[i] = cb.readShort();
}
return new BgpAttrNodeMultiTopologyId(multiTopologyId);
}
/**
* to get the multi-topology ID.
*
* @return multitopology ID
*/
short[] getAttrMultiTopologyId() {
return multiTopologyId;
}
@Override
public short getType() {
return ATTRNODE_MULTITOPOLOGY;
}
@Override
public int hashCode() {
return Objects.hash(multiTopologyId);
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj instanceof BgpAttrNodeMultiTopologyId) {
BgpAttrNodeMultiTopologyId other = (BgpAttrNodeMultiTopologyId) obj;
return Objects.equals(multiTopologyId, other.multiTopologyId);
}
return false;
}
@Override
public int write(ChannelBuffer cb) {
// TODO Auto-generated method stub
return 0;
}
@Override
public String toString() {
return MoreObjects.toStringHelper(getClass())
.omitNullValues()
.add("multiTopologyId", multiTopologyId)
.toString();
}
}
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