| /* |
| * Copyright 2015-present 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(); |
| } |
| } |