/* * 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 = 4 | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | nexthop IPv4 address | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ NEXTHOP-IPV4-ADDRESS TLV */ protected static final Logger log = LoggerFactory.getLogger(NexthopIPv4addressTlv.class); public static final short TYPE = (short) 65289; //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 VALUE_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(VALUE_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", VALUE_LENGTH) .add("Ipv4Address ", rawValue) .toString(); } }