/* | |
* 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.protocol.ver1; | |
import org.jboss.netty.buffer.ChannelBuffer; | |
import org.onosproject.pcepio.exceptions.PcepParseException; | |
import org.onosproject.pcepio.protocol.PcepFecObjectIPv6Adjacency; | |
import org.onosproject.pcepio.protocol.PcepVersion; | |
import org.onosproject.pcepio.types.PcepObjectHeader; | |
import org.slf4j.Logger; | |
import org.slf4j.LoggerFactory; | |
import com.google.common.base.MoreObjects; | |
public class PcepFecObjectIPv6AdjacencyVer1 implements PcepFecObjectIPv6Adjacency { | |
/* | |
* ref : draft-zhao-pce-pcep-extension-for-pce-controller-01 , section : 7.5 | |
* | |
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 | |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
| | | |
// Local IPv6 address (16 bytes) // | |
| | | |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
| | | |
// Remote IPv6 address (16 bytes) // | |
| | | |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
FEC Object-Type is 4 IPv6 Adjacency | |
*/ | |
protected static final Logger log = LoggerFactory.getLogger(PcepFecObjectIPv6AdjacencyVer1.class); | |
public static final byte FEC_OBJ_TYPE = 4; | |
public static final byte FEC_OBJ_CLASS = 63; //to be defined | |
public static final byte FEC_OBJECT_VERSION = 1; | |
public static final short FEC_OBJ_MINIMUM_LENGTH = 36; | |
public static final int MINIMUM_COMMON_HEADER_LENGTH = 4; | |
public static final int IPV6_ADDRESS_LENGTH = 16; | |
static final PcepObjectHeader DEFAULT_FEC_OBJECT_HEADER = new PcepObjectHeader(FEC_OBJ_CLASS, FEC_OBJ_TYPE, | |
PcepObjectHeader.REQ_OBJ_OPTIONAL_PROCESS, PcepObjectHeader.RSP_OBJ_PROCESSED, FEC_OBJ_MINIMUM_LENGTH); | |
private PcepObjectHeader fecObjHeader; | |
private byte[] localIPv6Address = new byte[IPV6_ADDRESS_LENGTH]; | |
private byte[] remoteIPv6Address = new byte[IPV6_ADDRESS_LENGTH]; | |
/** | |
* Constructor to initialize parameters for PCEP fec object. | |
* | |
* @param fecObjHeader fec object header | |
* @param localIPv6Address local IPv6 address | |
* @param remoteIPv6Address remote IPv6 address | |
*/ | |
public PcepFecObjectIPv6AdjacencyVer1(PcepObjectHeader fecObjHeader, byte[] localIPv6Address, | |
byte[] remoteIPv6Address) { | |
this.fecObjHeader = fecObjHeader; | |
this.localIPv6Address = localIPv6Address; | |
this.remoteIPv6Address = remoteIPv6Address; | |
} | |
/** | |
* Sets Object Header. | |
* | |
* @param obj object header | |
*/ | |
public void setFecIpv4ObjHeader(PcepObjectHeader obj) { | |
this.fecObjHeader = obj; | |
} | |
@Override | |
public byte[] getLocalIPv6Address() { | |
return this.localIPv6Address; | |
} | |
@Override | |
public void seLocalIPv6Address(byte[] value) { | |
this.localIPv6Address = value; | |
} | |
@Override | |
public byte[] getRemoteIPv6Address() { | |
return this.remoteIPv6Address; | |
} | |
@Override | |
public void seRemoteIPv6Address(byte[] value) { | |
this.remoteIPv6Address = value; | |
} | |
/** | |
* Reads channel buffer and Returns object of PcepFecObjectIPv6Adjacency. | |
* | |
* @param cb of channel buffer | |
* @return object of PcepFecObjectIPv6Adjacency | |
* @throws PcepParseException when fails tp read from channel buffer | |
*/ | |
public static PcepFecObjectIPv6Adjacency read(ChannelBuffer cb) throws PcepParseException { | |
PcepObjectHeader fecObjHeader; | |
byte[] localIPv6Address = new byte[IPV6_ADDRESS_LENGTH]; | |
byte[] remoteIPv6Address = new byte[IPV6_ADDRESS_LENGTH]; | |
fecObjHeader = PcepObjectHeader.read(cb); | |
cb.readBytes(localIPv6Address, 0, IPV6_ADDRESS_LENGTH); | |
cb.readBytes(remoteIPv6Address, 0, IPV6_ADDRESS_LENGTH); | |
return new PcepFecObjectIPv6AdjacencyVer1(fecObjHeader, localIPv6Address, remoteIPv6Address); | |
} | |
@Override | |
public int write(ChannelBuffer cb) throws PcepParseException { | |
int objStartIndex = cb.writerIndex(); | |
//write common header | |
int objLenIndex = fecObjHeader.write(cb); | |
cb.writeBytes(localIPv6Address); | |
cb.writeBytes(remoteIPv6Address); | |
//now write FEC IPv6 Adjacency Object Length | |
cb.setShort(objLenIndex, (short) (cb.writerIndex() - objStartIndex)); | |
return cb.writerIndex(); | |
} | |
/** | |
* Builder class for PCEP fec object IPv6 Adjacency. | |
*/ | |
public static class Builder implements PcepFecObjectIPv6Adjacency.Builder { | |
private boolean bIsHeaderSet = false; | |
private boolean bIsLocalIPv6Addressset = false; | |
private boolean bIsRemoteIPv6Addressset = false; | |
private PcepObjectHeader fecObjHeader; | |
byte[] localIPv6Address = new byte[IPV6_ADDRESS_LENGTH]; | |
byte[] remoteIPv6Address = new byte[IPV6_ADDRESS_LENGTH]; | |
private boolean bIsPFlagSet = false; | |
private boolean bPFlag; | |
private boolean bIsIFlagSet = false; | |
private boolean bIFlag; | |
@Override | |
public PcepFecObjectIPv6Adjacency build() throws PcepParseException { | |
PcepObjectHeader fecObjHeader = this.bIsHeaderSet ? this.fecObjHeader : DEFAULT_FEC_OBJECT_HEADER; | |
if (!this.bIsLocalIPv6Addressset) { | |
throw new PcepParseException( | |
"Local IPv6 Address not set while building PcepFecObjectIPv6Adjacency object."); | |
} | |
if (!this.bIsRemoteIPv6Addressset) { | |
throw new PcepParseException( | |
"Remote IPv6 Address not set while building PcepFecObjectIPv6Adjacency object."); | |
} | |
if (bIsPFlagSet) { | |
fecObjHeader.setPFlag(bPFlag); | |
} | |
if (bIsIFlagSet) { | |
fecObjHeader.setIFlag(bIFlag); | |
} | |
return new PcepFecObjectIPv6AdjacencyVer1(fecObjHeader, this.localIPv6Address, this.remoteIPv6Address); | |
} | |
@Override | |
public Builder setPFlag(boolean value) { | |
this.bPFlag = value; | |
this.bIsPFlagSet = true; | |
return this; | |
} | |
@Override | |
public Builder setIFlag(boolean value) { | |
this.bIFlag = value; | |
this.bIsIFlagSet = true; | |
return this; | |
} | |
@Override | |
public PcepObjectHeader getFecIpv6AdjacencyObjHeader() { | |
return this.fecObjHeader; | |
} | |
@Override | |
public Builder setFecIpv6AdjacencyObjHeader(PcepObjectHeader obj) { | |
this.fecObjHeader = obj; | |
this.bIsHeaderSet = true; | |
return this; | |
} | |
@Override | |
public byte[] getLocalIPv6Address() { | |
return this.localIPv6Address; | |
} | |
@Override | |
public Builder setLocalIPv6Address(byte[] value) { | |
this.localIPv6Address = value; | |
this.bIsLocalIPv6Addressset = true; | |
return this; | |
} | |
@Override | |
public byte[] getRemoteIPv6Address() { | |
return this.remoteIPv6Address; | |
} | |
@Override | |
public Builder setRemoteIPv6Address(byte[] value) { | |
this.remoteIPv6Address = value; | |
this.bIsRemoteIPv6Addressset = true; | |
return this; | |
} | |
} | |
@Override | |
public PcepVersion getVersion() { | |
return PcepVersion.PCEP_1; | |
} | |
@Override | |
public int getType() { | |
return FEC_OBJ_TYPE; | |
} | |
@Override | |
public String toString() { | |
return MoreObjects.toStringHelper(getClass()).add("localIPv6Address", localIPv6Address) | |
.add("remoteIPv6Address: ", remoteIPv6Address).toString(); | |
} | |
} |