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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.pcepio.types;
import java.util.Objects;
import org.jboss.netty.buffer.ChannelBuffer;
import org.onosproject.pcepio.protocol.PcepVersion;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.google.common.base.MoreObjects;
/**
* NexthopUnnumberedIPv4IDTlv provides the next node's ID and Interface ID.
*/
public class NexthopUnnumberedIPv4IDTlv implements PcepValueType {
/*
Reference : draft-zhao-pce-pcep-extension-for-pce-controller-01.
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type=TBD | Length = 12 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Node-ID |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Interface ID |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
NEXTHOP-UNNUMBERED-IPV4-ID TLV
*/
protected static final Logger log = LoggerFactory.getLogger(NexthopUnnumberedIPv4IDTlv.class);
public static final short TYPE = 1; //to be defined
//Length is header + value
public static final short LENGTH = 12;
private final int nodeID;
private final int interfaceID;
/**
* constructor to initialize nodeID and interfaceID.
*
* @param nodeID node ID
* @param interfaceID interface ID
*/
public NexthopUnnumberedIPv4IDTlv(int nodeID, int interfaceID) {
this.nodeID = nodeID;
this.interfaceID = interfaceID;
}
/**
* Returns new object of NexthopUnnumberedIPv4IDTlv.
*
* @param nodeID node ID
* @param interfaceID interface ID
* @return NexthopUnnumberedIPv4IDTlv
*/
public static NexthopUnnumberedIPv4IDTlv of(int nodeID, int interfaceID) {
return new NexthopUnnumberedIPv4IDTlv(nodeID, interfaceID);
}
/**
* Returns Node Id.
*
* @return node ID
*/
public int getNodeID() {
return nodeID;
}
/**
* Returns Interface Id.
*
* @return interface ID
*/
public int getInterfaceID() {
return interfaceID;
}
@Override
public PcepVersion getVersion() {
return PcepVersion.PCEP_1;
}
@Override
public short getType() {
return TYPE;
}
@Override
public short getLength() {
return LENGTH;
}
@Override
public int hashCode() {
return Objects.hash(nodeID, interfaceID);
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj instanceof NexthopUnnumberedIPv4IDTlv) {
NexthopUnnumberedIPv4IDTlv other = (NexthopUnnumberedIPv4IDTlv) obj;
return Objects.equals(this.nodeID, other.nodeID) && Objects.equals(this.interfaceID, other.interfaceID);
}
return false;
}
@Override
public int write(ChannelBuffer c) {
int iLenStartIndex = c.writerIndex();
c.writeShort(TYPE);
c.writeShort(LENGTH);
c.writeInt(nodeID);
c.writeInt(interfaceID);
return c.writerIndex() - iLenStartIndex;
}
/**
* Reads the channel buffer and returns object of NexthopUnnumberedIPv4IDTlv.
*
* @param cb type of channel buffer
* @return object of NexthopUnnumberedIPv4IDTlv
*/
public static NexthopUnnumberedIPv4IDTlv read(ChannelBuffer cb) {
int nodeID = cb.readInt();
int interfaceID = cb.readInt();
return new NexthopUnnumberedIPv4IDTlv(nodeID, interfaceID);
}
@Override
public String toString() {
return MoreObjects.toStringHelper(getClass())
.add("Type", TYPE)
.add("Length", LENGTH)
.add("NodeId", nodeID)
.add("InterfaceId", interfaceID)
.toString();
}
}
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