diff options
Diffstat (limited to 'framework/src/onos/protocols/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/ver1/PcepFecObjectIPv4AdjacencyVer1.java')
| -rw-r--r-- | framework/src/onos/protocols/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/ver1/PcepFecObjectIPv4AdjacencyVer1.java | 253 |
1 files changed, 253 insertions, 0 deletions
diff --git a/framework/src/onos/protocols/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/ver1/PcepFecObjectIPv4AdjacencyVer1.java b/framework/src/onos/protocols/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/ver1/PcepFecObjectIPv4AdjacencyVer1.java new file mode 100644 index 00000000..51c672d3 --- /dev/null +++ b/framework/src/onos/protocols/pcep/pcepio/src/main/java/org/onosproject/pcepio/protocol/ver1/PcepFecObjectIPv4AdjacencyVer1.java @@ -0,0 +1,253 @@ +/* + * 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(); + } +} |