/* | |
* 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; | |
/** | |
* NexthopIPv6addressTlv provides Ipv4 address of next hop. | |
*/ | |
public class NexthopIPv4addressTlv 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 = 8 | | |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
| nexthop IPv4 address | | |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
NEXTHOP-IPV4-ADDRESS TLV | |
*/ | |
protected static final Logger log = LoggerFactory.getLogger(NexthopIPv4addressTlv.class); | |
public static final short TYPE = 2; //to be defined | |
//Length is header + value | |
public static final short LENGTH = 8; | |
public static final short VALUE_LENGTH = 4; | |
private final int rawValue; | |
/** | |
* Constructor to initialize next hop IPv4 address. | |
* | |
* @param rawValue next hop IPv4 address | |
*/ | |
public NexthopIPv4addressTlv(int rawValue) { | |
this.rawValue = rawValue; | |
} | |
/** | |
* Return next hop IPv4 address tlv. | |
* | |
* @param raw of next hop IPv4 address | |
* @return object of NexthopIPv4addressTlv | |
*/ | |
public static NexthopIPv4addressTlv of(final int raw) { | |
return new NexthopIPv4addressTlv(raw); | |
} | |
/** | |
* Returns next hop IPv4 address. | |
* | |
* @return next hop IPv4 address | |
*/ | |
public int getInt() { | |
return rawValue; | |
} | |
@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(rawValue); | |
} | |
@Override | |
public boolean equals(Object obj) { | |
if (this == obj) { | |
return true; | |
} | |
if (obj instanceof NexthopIPv4addressTlv) { | |
NexthopIPv4addressTlv other = (NexthopIPv4addressTlv) obj; | |
return Objects.equals(this.rawValue, other.rawValue); | |
} | |
return false; | |
} | |
@Override | |
public int write(ChannelBuffer c) { | |
int iStartIndex = c.writerIndex(); | |
c.writeShort(TYPE); | |
c.writeShort(LENGTH); | |
c.writeInt(rawValue); | |
return c.writerIndex() - iStartIndex; | |
} | |
/** | |
* Reads the channel buffer and returns object of NexthopIPv4addressTlv. | |
* | |
* @param c type of channel buffer | |
* @return object of NexthopIPv4addressTlv | |
*/ | |
public static NexthopIPv4addressTlv read(ChannelBuffer c) { | |
return NexthopIPv4addressTlv.of(c.readInt()); | |
} | |
@Override | |
public String toString() { | |
return MoreObjects.toStringHelper(getClass()) | |
.add("Type", TYPE) | |
.add("Length", LENGTH) | |
.add("Ipv4Address ", rawValue) | |
.toString(); | |
} | |
} |