/* | |
* 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; | |
/** | |
* Provide Link Protection Type. | |
*/ | |
public class LinkProtectionTypeTlv implements PcepValueType { | |
/* Reference :[RFC5307]/1.2 | |
* 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=[TDB38] | Length=2 | | |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
|Protection Cap | Reserved | | |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
*/ | |
protected static final Logger log = LoggerFactory.getLogger(LinkProtectionTypeTlv.class); | |
public static final short TYPE = 20; //TDB38 | |
public static final short LENGTH = 2; | |
private final byte protectionCap; | |
private final byte reserved; | |
/** | |
* Constructor to initialize protectionCap. | |
* | |
* @param protectionCap Protection Cap | |
*/ | |
public LinkProtectionTypeTlv(byte protectionCap) { | |
this.protectionCap = protectionCap; | |
this.reserved = 0; | |
} | |
/** | |
* Constructor to initialize protectionCap, reserved. | |
* | |
* @param protectionCap Protection Cap | |
* @param reserved Reserved value | |
*/ | |
public LinkProtectionTypeTlv(byte protectionCap, byte reserved) { | |
this.protectionCap = protectionCap; | |
this.reserved = reserved; | |
} | |
/** | |
* Returns Protection Cap. | |
* | |
* @return protectionCap Protection Cap | |
*/ | |
public byte getProtectionCap() { | |
return protectionCap; | |
} | |
@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(protectionCap, reserved); | |
} | |
@Override | |
public boolean equals(Object obj) { | |
if (this == obj) { | |
return true; | |
} | |
if (obj instanceof LinkProtectionTypeTlv) { | |
LinkProtectionTypeTlv other = (LinkProtectionTypeTlv) obj; | |
return Objects.equals(protectionCap, other.protectionCap) && Objects.equals(reserved, other.reserved); | |
} | |
return false; | |
} | |
@Override | |
public int write(ChannelBuffer c) { | |
int iLenStartIndex = c.writerIndex(); | |
c.writeShort(TYPE); | |
c.writeShort(LENGTH); | |
c.writeByte(protectionCap); | |
c.writeByte(reserved); | |
return c.writerIndex() - iLenStartIndex; | |
} | |
/** | |
* Reads the channel buffer and returns object of LinkProtectionTypeTlv. | |
* | |
* @param c input channel buffer | |
* @return object of LinkProtectionTypeTlv | |
*/ | |
public static PcepValueType read(ChannelBuffer c) { | |
byte protectionCap = c.readByte(); | |
byte reserved = c.readByte(); | |
return new LinkProtectionTypeTlv(protectionCap, reserved); | |
} | |
@Override | |
public String toString() { | |
return MoreObjects.toStringHelper(getClass()).add("Type", TYPE).add("Length", LENGTH) | |
.add("ProtectionCap", protectionCap).toString(); | |
} | |
} |