/* | |
* 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 Opaque Link Attribute. | |
*/ | |
public class OpaqueLinkAttributeTlv implements PcepValueType { | |
/* | |
* TLV format. | |
* Reference :[I-D.ietf-idr-attributesls-distribution] /3.3.2.6 | |
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=TBD42 | Length | | |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
// Opaque link attributes (variable) // | |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
*/ | |
protected static final Logger log = LoggerFactory.getLogger(OpaqueLinkAttributeTlv.class); | |
public static final short TYPE = 1097; //TODO:NEED TO HANDLE TDB42 | |
private final short hLength; | |
private final byte[] rawValue; | |
/** | |
* constructor to initialize rawValue. | |
* | |
* @param rawValue of Opaque Link Attribute | |
* @param hLength length | |
*/ | |
public OpaqueLinkAttributeTlv(byte[] rawValue, short hLength) { | |
log.debug("OpaqueLinkAttributeTlv"); | |
this.rawValue = rawValue; | |
if (0 == hLength) { | |
this.hLength = (short) rawValue.length; | |
} else { | |
this.hLength = hLength; | |
} | |
} | |
/** | |
* Returns newly created OpaqueLinkAttributeTlv object. | |
* | |
* @param raw of Opaque Link Attribute | |
* @param hLength length | |
* @return new object of OpaqueLinkAttributeTlv | |
*/ | |
public static OpaqueLinkAttributeTlv of(final byte[] raw, short hLength) { | |
return new OpaqueLinkAttributeTlv(raw, hLength); | |
} | |
/** | |
* Returns raw value of Opaque Link Attribute Tlv. | |
* @return rawValue raw value | |
*/ | |
public byte[] getValue() { | |
return rawValue; | |
} | |
@Override | |
public PcepVersion getVersion() { | |
return PcepVersion.PCEP_1; | |
} | |
@Override | |
public short getType() { | |
return TYPE; | |
} | |
@Override | |
public short getLength() { | |
return hLength; | |
} | |
@Override | |
public int hashCode() { | |
return Objects.hash(rawValue); | |
} | |
@Override | |
public boolean equals(Object obj) { | |
if (this == obj) { | |
return true; | |
} | |
if (obj instanceof OpaqueLinkAttributeTlv) { | |
OpaqueLinkAttributeTlv other = (OpaqueLinkAttributeTlv) obj; | |
return Objects.equals(this.rawValue, other.rawValue); | |
} | |
return false; | |
} | |
@Override | |
public int write(ChannelBuffer c) { | |
int iLenStartIndex = c.writerIndex(); | |
c.writeShort(TYPE); | |
c.writeShort(hLength); | |
c.writeBytes(rawValue); | |
return c.writerIndex() - iLenStartIndex; | |
} | |
/** | |
* Reads the channel buffer and returns object of OpaqueLinkAttributeTlv. | |
* | |
* @param c input channel buffer | |
* @param hLength length | |
* @return object of Opaque Link Attribute Tlv | |
*/ | |
public static PcepValueType read(ChannelBuffer c, short hLength) { | |
byte[] iOpaqueValue = new byte[hLength]; | |
c.readBytes(iOpaqueValue, 0, hLength); | |
return new OpaqueLinkAttributeTlv(iOpaqueValue, hLength); | |
} | |
@Override | |
public String toString() { | |
ToStringHelper toStrHelper = MoreObjects.toStringHelper(getClass()); | |
toStrHelper.add("Type", TYPE); | |
toStrHelper.add("Length", hLength); | |
StringBuffer result = new StringBuffer(); | |
for (byte b : rawValue) { | |
result.append(String.format("%02X ", b)); | |
} | |
toStrHelper.add("Value", result); | |
return toStrHelper.toString(); | |
} | |
} |