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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.Arrays;
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;
import com.google.common.base.MoreObjects.ToStringHelper;
/**
* Provides IPv6 TE Router Id of Remote Node. Reference :[RFC6119]/4.1.
*/
public class IPv6TERouterIdofRemoteNodeTlv implements PcepValueType {
protected static final Logger log = LoggerFactory.getLogger(IPv6TERouterIdofRemoteNodeTlv.class);
public static final short TYPE = 1400; //TDB29
public static final short LENGTH = 20;
public static final byte VALUE_LENGTH = 18;
private static final byte[] NONE_VAL = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
public static final IPv6TERouterIdofRemoteNodeTlv NONE = new IPv6TERouterIdofRemoteNodeTlv(NONE_VAL);
private static final byte[] NO_MASK_VAL = {(byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF,
(byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF,
(byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF};
public static final IPv6TERouterIdofRemoteNodeTlv NO_MASK = new IPv6TERouterIdofRemoteNodeTlv(NO_MASK_VAL);
public static final IPv6TERouterIdofRemoteNodeTlv FULL_MASK = NONE;
private final byte[] rawValue;
/**
* constructor to initialize rawValue.
*
* @param rawValue IPv6TERouterIdofRemoteNodeTlv
*/
public IPv6TERouterIdofRemoteNodeTlv(byte[] rawValue) {
log.debug("IPv6TERouterIdofRemoteNodeTlv");
this.rawValue = rawValue;
}
/**
* Returns newly created IPv6TERouterIdofRemoteNodeTlv object.
*
* @param raw IPv6 TE Router Id of RemoteNode
* @return object of IPv6TERouterIdofRemoteNodeTlv
*/
public static IPv6TERouterIdofRemoteNodeTlv of(final byte[] raw) {
//check NONE_VAL
boolean bFoundNONE = true;
//value starts from 3rd byte.
for (int i = 2; i < 20; ++i) {
if (NONE_VAL[i] != raw[i]) {
bFoundNONE = false;
}
}
if (bFoundNONE) {
return NONE;
}
//check NO_MASK_VAL
boolean bFoundNoMask = true;
//value starts from 3rd byte.
for (int i = 2; i < 20; ++i) {
if (0xFF != raw[i]) {
bFoundNoMask = false;
}
}
if (bFoundNoMask) {
return NO_MASK;
}
return new IPv6TERouterIdofRemoteNodeTlv(raw);
}
/**
* Returns value of IPv6 TE Router Id of Remote Node.
*
* @return byte array value of rawValue
*/
public byte[] getBytes() {
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 Arrays.hashCode(rawValue);
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj instanceof IPv6TERouterIdofRemoteNodeTlv) {
IPv6TERouterIdofRemoteNodeTlv other = (IPv6TERouterIdofRemoteNodeTlv) obj;
return Arrays.equals(rawValue, other.rawValue);
}
return false;
}
@Override
public int write(ChannelBuffer c) {
int iStartIndex = c.writerIndex();
c.writeShort(TYPE);
c.writeShort(LENGTH);
c.writeBytes(rawValue);
return c.writerIndex() - iStartIndex;
}
/**
* Reads the channel buffer and returns object of IPv6TERouterIdofRemoteNodeTlv.
*
* @param c input channel buffer
* @return object of IPv6TERouterIdofRemoteNodeTlv
*/
public static IPv6TERouterIdofRemoteNodeTlv read20Bytes(ChannelBuffer c) {
byte[] yTemp = new byte[20];
c.readBytes(yTemp, 0, 20);
return IPv6TERouterIdofRemoteNodeTlv.of(yTemp);
}
@Override
public String toString() {
ToStringHelper toStrHelper = MoreObjects.toStringHelper(getClass());
toStrHelper.add("Type", TYPE);
toStrHelper.add("Length", LENGTH);
StringBuffer result = new StringBuffer();
for (byte b : rawValue) {
result.append(String.format("%02X ", b));
}
toStrHelper.add("Value", result);
return toStrHelper.toString();
}
}
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