/* | |
* 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; | |
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 Objects.hash(rawValue); | |
} | |
@Override | |
public boolean equals(Object obj) { | |
if (this == obj) { | |
return true; | |
} | |
if (obj instanceof IPv6TERouterIdofRemoteNodeTlv) { | |
IPv6TERouterIdofRemoteNodeTlv other = (IPv6TERouterIdofRemoteNodeTlv) obj; | |
return Objects.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(); | |
} | |
} |