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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 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();
}
}
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