| /* |
| * 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 = (byte) 226; |
| 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; |
| |
| public 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(); |
| } |
| } |