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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.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;
/**
* Provides TED Capability Tlv.
*/
public class TedCapabilityTlv implements PcepValueType {
/*
* Reference :PCEP Extension for Transporting TE Data draft-dhodylee-pce-pcep-te-data-extn-02
* 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=[TBD5] | Length=4 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Flags |R|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*/
protected static final Logger log = LoggerFactory.getLogger(TedCapabilityTlv.class);
public static final short TYPE = 132; //TODO: need to change this TBD5
public static final short LENGTH = 4;
public static final int SET = 1;
public static final byte RFLAG_CHECK = 0x01;
private final boolean bRFlag;
private final int rawValue;
private final boolean isRawValueSet;
/**
* Constructor to initialize raw Value.
*
* @param rawValue Flags
*/
public TedCapabilityTlv(final int rawValue) {
this.rawValue = rawValue;
this.isRawValueSet = true;
int temp = rawValue;
temp = temp & RFLAG_CHECK;
if (temp == SET) {
this.bRFlag = true;
} else {
this.bRFlag = false;
}
}
/**
* Constructor to initialize bRFlag.
*
* @param bRFlag R-flag
*/
public TedCapabilityTlv(boolean bRFlag) {
this.bRFlag = bRFlag;
this.rawValue = 0;
this.isRawValueSet = false;
}
/**
* Returns R-flag.
*
* @return bRFlag
*/
public boolean getbRFlag() {
return bRFlag;
}
/**
* Returns an object of TedCapabilityTlv.
*
* @param raw value Flags
* @return object of TedCapabilityTlv
*/
public static TedCapabilityTlv of(final int raw) {
return new TedCapabilityTlv(raw);
}
@Override
public PcepVersion getVersion() {
return PcepVersion.PCEP_1;
}
public int getInt() {
return rawValue;
}
@Override
public short getType() {
return TYPE;
}
@Override
public short getLength() {
return LENGTH;
}
@Override
public int hashCode() {
if (isRawValueSet) {
return Objects.hash(rawValue);
} else {
return Objects.hash(bRFlag);
}
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj instanceof TedCapabilityTlv) {
TedCapabilityTlv other = (TedCapabilityTlv) obj;
if (isRawValueSet) {
return Objects.equals(this.rawValue, other.rawValue);
} else {
return Objects.equals(this.bRFlag, other.bRFlag);
}
}
return false;
}
@Override
public int write(ChannelBuffer c) {
int iStartIndex = c.writerIndex();
int temp = 0;
c.writeShort(TYPE);
c.writeShort(LENGTH);
if (isRawValueSet) {
c.writeInt(rawValue);
} else {
if (bRFlag) {
temp = temp | RFLAG_CHECK;
}
c.writeInt(temp);
}
return c.writerIndex() - iStartIndex;
}
/**
* Reads channel buffer and returns object of TedCapabilityTlv.
*
* @param c input channel buffer
* @return object of TedCapabilityTlv
*/
public static TedCapabilityTlv read(ChannelBuffer c) {
return TedCapabilityTlv.of(c.readInt());
}
@Override
public String toString() {
return MoreObjects.toStringHelper(getClass())
.add("Type", TYPE)
.add("Length", LENGTH)
.add("Value", rawValue)
.toString();
}
}
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