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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;
import com.google.common.base.MoreObjects.ToStringHelper;
/**
* Provides Opaque node attributes.
*/
public class OpaqueNodeAttributeTlv implements PcepValueType {
/*
* Reference [I-D.ietf-idr-Properties ls-distribution] /3.3.1.5
* 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=[TBD22] | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// Opaque node attributes (variable) //
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*/
protected static final Logger log = LoggerFactory.getLogger(OpaqueNodeAttributeTlv.class);
public static final short TYPE = 1001;
private final short hLength;
private final byte[] rawValue;
/**
* constructor to initialize rawValue.
*
* @param rawValue Opaque Node Attribute
* @param hLength length
*/
public OpaqueNodeAttributeTlv(byte[] rawValue, short hLength) {
this.rawValue = rawValue;
if (0 == hLength) {
this.hLength = (short) rawValue.length;
} else {
this.hLength = hLength;
}
}
/**
* Returns newly created OpaqueNodeAttributeTlv object.
*
* @param raw value of Opaque Node Attribute
* @param hLength length
* @return new object of Opaque Node Attribute Tlv
*/
public static OpaqueNodeAttributeTlv of(final byte[] raw, short hLength) {
return new OpaqueNodeAttributeTlv(raw, hLength);
}
/**
* Returns raw value of Opaque Node Attribute Tlv.
*
* @return rawValue of Opaque Node Attribute
*/
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 OpaqueNodeAttributeTlv) {
OpaqueNodeAttributeTlv other = (OpaqueNodeAttributeTlv) 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 Opaque Node Attribute Tlv.
*
* @param c input channel buffer
* @param hLength length
* @return object of OpaqueNodeAttributeTlv
*/
public static PcepValueType read(ChannelBuffer c, short hLength) {
byte[] iOpaqueValue = new byte[hLength];
c.readBytes(iOpaqueValue, 0, hLength);
return new OpaqueNodeAttributeTlv(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();
}
}
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