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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;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Objects;
import org.jboss.netty.buffer.ChannelBuffer;
import org.onosproject.bgpio.protocol.IGPRouterID;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.google.common.base.MoreObjects;
/**
* Provides implementation of IsIsPseudonode Tlv.
*/
public class IsIsPseudonode implements IGPRouterID, BGPValueType {
private static final Logger log = LoggerFactory.getLogger(IsIsPseudonode.class);
public static final short TYPE = 515;
public static final short LENGTH = 7;
private final List<Byte> isoNodeID;
private byte psnIdentifier;
/**
* Constructor to initialize isoNodeID.
*
* @param isoNodeID ISO system-ID
* @param psnIdentifier PSN identifier
*/
public IsIsPseudonode(List<Byte> isoNodeID, byte psnIdentifier) {
this.isoNodeID = isoNodeID;
this.psnIdentifier = psnIdentifier;
}
/**
* Returns object of this class with specified values.
*
* @param isoNodeID ISO system-ID
* @param psnIdentifier PSN identifier
* @return object of IsIsPseudonode
*/
public static IsIsPseudonode of(final List<Byte> isoNodeID,
final byte psnIdentifier) {
return new IsIsPseudonode(isoNodeID, psnIdentifier);
}
/**
* Returns ISO NodeID.
*
* @return ISO NodeID
*/
public List<Byte> getISONodeID() {
return isoNodeID;
}
/**
* Returns PSN Identifier.
*
* @return PSN Identifier
*/
public byte getPSNIdentifier() {
return this.psnIdentifier;
}
@Override
public int hashCode() {
return Objects.hash(isoNodeID) & Objects.hash(psnIdentifier);
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj instanceof IsIsPseudonode) {
int countObjSubTlv = 0;
int countOtherSubTlv = 0;
boolean isCommonSubTlv = true;
IsIsPseudonode other = (IsIsPseudonode) obj;
Iterator<Byte> objListIterator = other.isoNodeID.iterator();
countOtherSubTlv = other.isoNodeID.size();
countObjSubTlv = isoNodeID.size();
if (countObjSubTlv != countOtherSubTlv) {
return false;
} else {
while (objListIterator.hasNext() && isCommonSubTlv) {
Byte subTlv = objListIterator.next();
if (isoNodeID.contains(subTlv) && other.isoNodeID.contains(subTlv)) {
isCommonSubTlv = Objects.equals(isoNodeID.get(isoNodeID.indexOf(subTlv)),
other.isoNodeID.get(other.isoNodeID.indexOf(subTlv)));
} else {
isCommonSubTlv = false;
}
}
return isCommonSubTlv && Objects.equals(psnIdentifier, other.psnIdentifier);
}
}
return false;
}
@Override
public int write(ChannelBuffer c) {
int iLenStartIndex = c.writerIndex();
c.writeShort(TYPE);
c.writeShort(LENGTH);
Iterator<Byte> objListIterator = isoNodeID.iterator();
while (objListIterator.hasNext()) {
byte value = objListIterator.next();
c.writeByte(value);
}
c.writeByte(psnIdentifier);
return c.writerIndex() - iLenStartIndex;
}
/**
* Reads the channel buffer and returns object of IsIsPseudonode.
*
* @param cb ChannelBuffer
* @return object of IsIsPseudonode
*/
public static IsIsPseudonode read(ChannelBuffer cb) {
List<Byte> isoNodeID = new ArrayList<Byte>();
byte value;
for (int i = 0; i < LENGTH; i++) {
value = cb.readByte();
isoNodeID.add(value);
}
byte psnIdentifier = cb.readByte();
return IsIsPseudonode.of(isoNodeID, psnIdentifier);
}
@Override
public short getType() {
return TYPE;
}
@Override
public String toString() {
return MoreObjects.toStringHelper(getClass())
.add("Type", TYPE)
.add("Length", LENGTH)
.add("isoNodeID", isoNodeID)
.add("psnIdentifier", psnIdentifier)
.toString();
}
}
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