package org.onosproject.pcepio.types; | |
import org.jboss.netty.buffer.ChannelBuffer; | |
import org.onosproject.pcepio.protocol.PcepVersion; | |
import com.google.common.base.MoreObjects; | |
/** | |
* Provides Pcep Rsvp Ipv6 Error Spec. | |
*/ | |
public class PcepRsvpIpv6ErrorSpec implements PcepRsvpErrorSpec { | |
/* | |
0 1 2 3 | |
+-------------+-------------+-------------+-------------+ | |
| Length (bytes) | Class-Num | C-Type | | |
+-------------+-------------+-------------+-------------+ | |
| | | |
// (Object contents) // | |
| | | |
+-------------+-------------+-------------+-------------+ | |
Ref : ERROR_SPEC @ RFC2205 | |
IPv6 ERROR_SPEC object: Class = 6, C-Type = 2 | |
+-------------+-------------+-------------+-------------+ | |
| | | |
+ + | |
| | | |
+ IPv6 Error Node Address (16 bytes) + | |
| | | |
+ + | |
| | | |
+-------------+-------------+-------------+-------------+ | |
| Flags | Error Code | Error Value | | |
+-------------+-------------+-------------+-------------+ */ | |
PcepRsvpSpecObjHeader objHeader; | |
public static final byte CLASS_NUM = 0x06; | |
public static final byte CLASS_TYPE = 0x02; | |
public static final byte CLASS_LENGTH = 0x18; | |
public static final byte IPV6_LEN = 0x10; | |
private byte[] ipv6Addr; | |
private byte flags; | |
private byte errCode; | |
private short errValue; | |
/** | |
* Constructor to initialize obj header, ipv6 addr, flags, err code and err value. | |
* | |
* @param objHeader rsvp ipv6 error spec object header | |
* @param ipv6Addr ipv6 address | |
* @param flags flags value | |
* @param errCode error code | |
* @param errValue error value | |
*/ | |
public PcepRsvpIpv6ErrorSpec(PcepRsvpSpecObjHeader objHeader, byte[] ipv6Addr, byte flags, byte errCode, | |
short errValue) { | |
this.objHeader = objHeader; | |
this.ipv6Addr = ipv6Addr; | |
this.flags = flags; | |
this.errCode = errCode; | |
this.errValue = errValue; | |
} | |
/** | |
* Constructor to initialize ipv6 addr, flags, err code and err value. | |
* | |
* @param ipv6Addr ipv6 address | |
* @param flags flags value | |
* @param errCode error code | |
* @param errValue error value | |
*/ | |
public PcepRsvpIpv6ErrorSpec(byte[] ipv6Addr, byte flags, byte errCode, short errValue) { | |
this.objHeader = new PcepRsvpSpecObjHeader(CLASS_LENGTH, CLASS_NUM, CLASS_TYPE); | |
this.ipv6Addr = ipv6Addr; | |
this.flags = flags; | |
this.errCode = errCode; | |
this.errValue = errValue; | |
} | |
@Override | |
public int write(ChannelBuffer cb) { | |
int objLenIndex = objHeader.write(cb); | |
cb.writeBytes(ipv6Addr); | |
cb.writeByte(flags); | |
cb.writeByte(errCode); | |
cb.writeShort(errValue); | |
short objLen = (short) (cb.writerIndex() - objLenIndex); | |
cb.setShort(objLenIndex, objLen); | |
return objLen; | |
} | |
/** | |
* Returns PCEP rsvp IPv6 error spce object. | |
* | |
* @param cb channel buffer | |
* @return PCEP rsvp IPv6 error spce object | |
*/ | |
public static PcepRsvpErrorSpec read(ChannelBuffer cb) { | |
PcepRsvpSpecObjHeader objHeader; | |
byte[] ipv6Addr = new byte[IPV6_LEN]; | |
byte flags; | |
byte errCode; | |
short errValue; | |
objHeader = PcepRsvpSpecObjHeader.read(cb); | |
cb.readBytes(ipv6Addr, 0, IPV6_LEN); | |
flags = cb.readByte(); | |
errCode = cb.readByte(); | |
errValue = cb.readShort(); | |
return new PcepRsvpIpv6ErrorSpec(objHeader, ipv6Addr, flags, errCode, errValue); | |
} | |
@Override | |
public PcepVersion getVersion() { | |
return PcepVersion.PCEP_1; | |
} | |
@Override | |
public short getType() { | |
return StatefulRsvpErrorSpecTlv.TYPE; | |
} | |
@Override | |
public short getLength() { | |
return CLASS_LENGTH; | |
} | |
@Override | |
public byte getClassNum() { | |
return CLASS_NUM; | |
} | |
@Override | |
public byte getClassType() { | |
return CLASS_TYPE; | |
} | |
@Override | |
public String toString() { | |
return MoreObjects.toStringHelper(getClass()) | |
.add("IPv6Address:", ipv6Addr) | |
.add("flags:", flags) | |
.add("errorCode:", errCode) | |
.add("errorValue:", errValue) | |
.toString(); | |
} | |
} |