/* | |
* 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 Ipv4 Error Spec. | |
*/ | |
public class PcepRsvpIpv4ErrorSpec implements PcepRsvpErrorSpec { | |
/* | |
RSVP error spec object header. | |
0 1 2 3 | |
+-------------+-------------+-------------+-------------+ | |
| Length (bytes) | Class-Num | C-Type | | |
+-------------+-------------+-------------+-------------+ | |
| | | |
// (Object contents) // | |
| | | |
+-------------+-------------+-------------+-------------+ | |
Ref : ERROR_SPEC @ RFC2205 | |
IPv4 ERROR_SPEC object: Class = 6, C-Type = 1 | |
+-------------+-------------+-------------+-------------+ | |
| IPv4 Error Node Address (4 bytes) | | |
+-------------+-------------+-------------+-------------+ | |
| Flags | Error Code | Error Value | | |
+-------------+-------------+-------------+-------------+ | |
*/ | |
PcepRsvpSpecObjHeader objHeader; | |
public static final byte CLASS_NUM = 0x06; | |
public static final byte CLASS_TYPE = 0x01; | |
public static final byte CLASS_LENGTH = 0x0c; | |
private int ipv4Addr; | |
private byte flags; | |
private byte errCode; | |
private short errValue; | |
/** | |
* Constructor to initialize obj header, ipv4 addr, flags, err code and err value. | |
* | |
* @param objHeader rsvp ipv4 error spec object header | |
* @param ipv4Addr ipv4 address | |
* @param flags flags value | |
* @param errCode error code value | |
* @param errValue error value | |
*/ | |
public PcepRsvpIpv4ErrorSpec(PcepRsvpSpecObjHeader objHeader, int ipv4Addr, byte flags, byte errCode, | |
short errValue) { | |
this.objHeader = objHeader; | |
this.ipv4Addr = ipv4Addr; | |
this.flags = flags; | |
this.errCode = errCode; | |
this.errValue = errValue; | |
} | |
/** | |
* Constructor to initialize ipv4 address, flags, err code and err value. | |
* | |
* @param ipv4Addr ipv4 address | |
* @param flags flags value | |
* @param errCode error code | |
* @param errValue error value | |
*/ | |
public PcepRsvpIpv4ErrorSpec(int ipv4Addr, byte flags, byte errCode, short errValue) { | |
this.objHeader = new PcepRsvpSpecObjHeader(CLASS_LENGTH, CLASS_NUM, CLASS_TYPE); | |
this.ipv4Addr = ipv4Addr; | |
this.flags = flags; | |
this.errCode = errCode; | |
this.errValue = errValue; | |
} | |
@Override | |
public int write(ChannelBuffer cb) { | |
int objLenIndex = objHeader.write(cb); | |
cb.writeInt(ipv4Addr); | |
cb.writeByte(flags); | |
cb.writeByte(errCode); | |
cb.writeShort(errValue); | |
short objLen = (short) (cb.writerIndex() - objLenIndex); | |
cb.setShort(objLenIndex, objLen); | |
return objLen; | |
} | |
/** | |
* Reads PCPE RSVP error spec from channel buffer and returns PCEP rsvp IPv4 error spec object. | |
* | |
* @param cb channel buffer | |
* @return PCEP rsvp IPv4 error spec object | |
*/ | |
public static PcepRsvpErrorSpec read(ChannelBuffer cb) { | |
PcepRsvpSpecObjHeader objHeader; | |
int ipv4Addr; | |
byte flags; | |
byte errCode; | |
short errValue; | |
objHeader = PcepRsvpSpecObjHeader.read(cb); | |
ipv4Addr = cb.readInt(); | |
flags = cb.readByte(); | |
errCode = cb.readByte(); | |
errValue = cb.readShort(); | |
return new PcepRsvpIpv4ErrorSpec(objHeader, ipv4Addr, 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("IPv4Address:", ipv4Addr) | |
.add("flags:", flags) | |
.add("errorCode:", errCode) | |
.add("errorValue:", errValue) | |
.toString(); | |
} | |
} |