/* | |
* 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.PcepFecObjectIPv4Adjacency; | |
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; | |
/** | |
* Provides PCEP fec Object IPv4 Adjacency object. | |
*/ | |
public class PcepFecObjectIPv4AdjacencyVer1 implements PcepFecObjectIPv4Adjacency { | |
/* | |
* 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 IPv4 address | | |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
| Remote IPv4 address | | |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
FEC Object-Type is 3 IPv4 Adjacency | |
*/ | |
protected static final Logger log = LoggerFactory.getLogger(PcepFecObjectIPv4AdjacencyVer1.class); | |
public static final byte FEC_OBJ_TYPE = 3; | |
public static final byte FEC_OBJ_CLASS = 36; //to be defined | |
public static final byte FEC_OBJECT_VERSION = 1; | |
public static final short FEC_OBJ_MINIMUM_LENGTH = 12; | |
public static final int MINIMUM_COMMON_HEADER_LENGTH = 4; | |
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 int localIPv4Address; | |
private int remoteIPv4Address; | |
/** | |
* Constructor to initialize parameters for PCEP fec object . | |
* | |
* @param fecObjHeader FEC Object header | |
* @param localIPv4Address Local IPv4 Address | |
* @param remoteIPv4Address Remote IPv4 Address | |
*/ | |
public PcepFecObjectIPv4AdjacencyVer1(PcepObjectHeader fecObjHeader, int localIPv4Address, int remoteIPv4Address) { | |
this.fecObjHeader = fecObjHeader; | |
this.localIPv4Address = localIPv4Address; | |
this.remoteIPv4Address = remoteIPv4Address; | |
} | |
/** | |
* Sets Object header. | |
* | |
* @param obj Pcep fec Object Header | |
*/ | |
public void setFecIpv4ObjHeader(PcepObjectHeader obj) { | |
this.fecObjHeader = obj; | |
} | |
@Override | |
public int getLocalIPv4Address() { | |
return this.localIPv4Address; | |
} | |
@Override | |
public void seLocalIPv4Address(int value) { | |
this.localIPv4Address = value; | |
} | |
@Override | |
public int getRemoteIPv4Address() { | |
return this.remoteIPv4Address; | |
} | |
@Override | |
public void seRemoteIPv4Address(int value) { | |
this.remoteIPv4Address = value; | |
} | |
/** | |
* Reads from channel buffer and Returns object of PcepFecObjectIPv4Adjacency. | |
* | |
* @param cb of channel buffer. | |
* @return object of PcepFecObjectIPv4Adjacency | |
* @throws PcepParseException when fails to read from channel buffer | |
*/ | |
public static PcepFecObjectIPv4Adjacency read(ChannelBuffer cb) throws PcepParseException { | |
PcepObjectHeader fecObjHeader; | |
int localIPv4Address; | |
int remoteIPv4Address; | |
fecObjHeader = PcepObjectHeader.read(cb); | |
//take only FEC IPv4 Adjacency Object buffer. | |
ChannelBuffer tempCb = cb.readBytes(fecObjHeader.getObjLen() - MINIMUM_COMMON_HEADER_LENGTH); | |
localIPv4Address = tempCb.readInt(); | |
remoteIPv4Address = tempCb.readInt(); | |
return new PcepFecObjectIPv4AdjacencyVer1(fecObjHeader, localIPv4Address, remoteIPv4Address); | |
} | |
@Override | |
public int write(ChannelBuffer cb) throws PcepParseException { | |
int objStartIndex = cb.writerIndex(); | |
//Write common header | |
int objLenIndex = fecObjHeader.write(cb); | |
cb.writeInt(localIPv4Address); | |
cb.writeInt(remoteIPv4Address); | |
//Now write FEC IPv4 Adjacency Object Length | |
cb.setShort(objLenIndex, (short) (cb.writerIndex() - objStartIndex)); | |
return cb.writerIndex(); | |
} | |
/** | |
* Builder class for PCEP fec object IPv4 Adjacency. | |
*/ | |
public static class Builder implements PcepFecObjectIPv4Adjacency.Builder { | |
private boolean bIsHeaderSet = false; | |
private boolean bIsLocalIPv4Addressset = false; | |
private boolean bIsRemoteIPv4Addressset = false; | |
private PcepObjectHeader fecObjHeader; | |
int localIPv4Address; | |
int remoteIPv4Address; | |
private boolean bIsPFlagSet = false; | |
private boolean bPFlag; | |
private boolean bIsIFlagSet = false; | |
private boolean bIFlag; | |
@Override | |
public PcepFecObjectIPv4Adjacency build() throws PcepParseException { | |
PcepObjectHeader fecObjHeader = this.bIsHeaderSet ? this.fecObjHeader : DEFAULT_FEC_OBJECT_HEADER; | |
if (!this.bIsLocalIPv4Addressset) { | |
throw new PcepParseException( | |
"Local IPv4 Address not set while building PcepFecObjectIPv4Adjacency object."); | |
} | |
if (!this.bIsRemoteIPv4Addressset) { | |
throw new PcepParseException( | |
" Remote IPv4 Address not set while building PcepFecObjectIPv4Adjacency object."); | |
} | |
if (bIsPFlagSet) { | |
fecObjHeader.setPFlag(bPFlag); | |
} | |
if (bIsIFlagSet) { | |
fecObjHeader.setIFlag(bIFlag); | |
} | |
return new PcepFecObjectIPv4AdjacencyVer1(fecObjHeader, this.localIPv4Address, this.remoteIPv4Address); | |
} | |
@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 getFecIpv4AdjacencyObjHeader() { | |
return this.fecObjHeader; | |
} | |
@Override | |
public Builder setFecIpv4AdjacencyObjHeader(PcepObjectHeader obj) { | |
this.fecObjHeader = obj; | |
this.bIsHeaderSet = true; | |
return this; | |
} | |
@Override | |
public int getLocalIPv4Address() { | |
return this.localIPv4Address; | |
} | |
@Override | |
public Builder seLocalIPv4Address(int value) { | |
this.localIPv4Address = value; | |
this.bIsLocalIPv4Addressset = true; | |
return this; | |
} | |
@Override | |
public int getRemoteIPv4Address() { | |
return this.remoteIPv4Address; | |
} | |
@Override | |
public Builder seRemoteIPv4Address(int value) { | |
this.remoteIPv4Address = value; | |
this.bIsRemoteIPv4Addressset = 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("fecObjHeader", fecObjHeader) | |
.add("localIPv4Address", localIPv4Address).add("remoteIPv4Address", remoteIPv4Address).toString(); | |
} | |
} |