@Override
public IPacket deserialize(byte[] data, int offset, int length) {
ByteBuffer bb = ByteBuffer.wrap(data, offset, length);
LLDPTLV tlv;
do {
tlv = new LLDPTLV().deserialize(bb);
// if there was a failure to deserialize stop processing TLVs
if (tlv == null) break;
switch (tlv.getType()) {
case 0x0:
// can throw this one away, its just an end delimiter
break;
case 0x1:
this.chassisId = tlv;
break;
case 0x2:
this.portId = tlv;
break;
case 0x3:
this.ttl = tlv;
break;
default:
this.optionalTLVList.add(tlv);
break;
}
} while (tlv.getType() != 0 && bb.hasRemaining());
return this;
}
@Override
public byte[] serialize() {
int length =
2 + this.chassisId.getLength() + 2 + this.portId.getLength() + 2 + this.ttl.getLength() + 2;
if (this.optionalTLVList != null) {
for (LLDPTLV tlv : this.optionalTLVList) {
length += 2 + tlv.getLength();
}
}
byte[] data = new byte[length];
ByteBuffer bb = ByteBuffer.wrap(data);
bb.put(this.chassisId.serialize());
bb.put(this.portId.serialize());
bb.put(this.ttl.serialize());
if (this.optionalTLVList != null) {
for (LLDPTLV tlv : this.optionalTLVList) {
bb.put(tlv.serialize());
}
}
bb.putShort((short) 0); // End of LLDPDU
if (this.parent != null && this.parent instanceof Ethernet)
((Ethernet) this.parent).setEtherType(Ethernet.TYPE_LLDP);
return data;
}
/* (non-Javadoc)
* @see java.lang.Object#hashCode()
*/
@Override
public int hashCode() {
final int prime = 883;
int result = super.hashCode();
result = prime * result + ((chassisId == null) ? 0 : chassisId.hashCode());
result = prime * result + (optionalTLVList.hashCode());
result = prime * result + ((portId == null) ? 0 : portId.hashCode());
result = prime * result + ((ttl == null) ? 0 : ttl.hashCode());
return result;
}
/* (non-Javadoc)
* @see java.lang.Object#equals(java.lang.Object)
*/
@Override
public boolean equals(Object obj) {
if (this == obj) return true;
if (!super.equals(obj)) return false;
if (!(obj instanceof LLDP)) return false;
LLDP other = (LLDP) obj;
if (chassisId == null) {
if (other.chassisId != null) return false;
} else if (!chassisId.equals(other.chassisId)) return false;
if (!optionalTLVList.equals(other.optionalTLVList)) return false;
if (portId == null) {
if (other.portId != null) return false;
} else if (!portId.equals(other.portId)) return false;
if (ttl == null) {
if (other.ttl != null) return false;
} else if (!ttl.equals(other.ttl)) return false;
return true;
}