Bharat saraswal | 3077717 | 2015-08-21 15:51:10 +0530 | [diff] [blame] | 1 | /*
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| 2 | * Copyright 2015 Open Networking Laboratory
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| 3 | *
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| 4 | * Licensed under the Apache License, Version 2.0 (the "License");
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| 5 | * you may not use this file except in compliance with the License.
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| 6 | * You may obtain a copy of the License at
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| 7 | *
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| 8 | * http://www.apache.org/licenses/LICENSE-2.0
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| 9 | *
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| 10 | * Unless required by applicable law or agreed to in writing, software
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| 11 | * distributed under the License is distributed on an "AS IS" BASIS,
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| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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| 13 | * See the License for the specific language governing permissions and
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| 14 | * limitations under the License.
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| 15 | */
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| 16 |
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| 17 | package org.onosproject.pcepio.protocol.ver1;
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| 18 |
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| 19 | import org.jboss.netty.buffer.ChannelBuffer;
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| 20 | import org.onosproject.pcepio.exceptions.PcepParseException;
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| 21 | import org.onosproject.pcepio.protocol.PcepFecObjectIPv4UnnumberedAdjacency;
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| 22 | import org.onosproject.pcepio.protocol.PcepVersion;
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| 23 | import org.onosproject.pcepio.types.PcepObjectHeader;
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| 24 | import org.slf4j.Logger;
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| 25 | import org.slf4j.LoggerFactory;
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| 26 |
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| 27 | import com.google.common.base.MoreObjects;
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| 28 |
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| 29 | public class PcepFecObjectIPv4UnnumberedAdjacencyVer1 implements PcepFecObjectIPv4UnnumberedAdjacency {
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| 30 |
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| 31 | /*
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| 32 | * ref : draft-zhao-pce-pcep-extension-for-pce-controller-01 , section : 7.5
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| 33 | *
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| 34 | 0 1 2 3
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| 35 | 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
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| 36 | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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| 37 | | Local Node-ID |
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| 38 | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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| 39 | | Local Interface ID |
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| 40 | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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| 41 | | Remote Node-ID |
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| 42 | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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| 43 | | Remote Interface ID |
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| 44 | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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| 45 |
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| 46 | FEC Object-Type is 5, Unnumbered Adjacency with IPv4 NodeIDs
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| 47 | */
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| 48 | protected static final Logger log = LoggerFactory.getLogger(PcepFecObjectIPv4UnnumberedAdjacencyVer1.class);
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| 49 |
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| 50 | public static final byte FEC_OBJ_TYPE = 5;
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| 51 | public static final byte FEC_OBJ_CLASS = 63; //to be defined
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| 52 | public static final byte FEC_OBJECT_VERSION = 1;
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| 53 | public static final short FEC_OBJ_MINIMUM_LENGTH = 20;
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| 54 | public static final int MINIMUM_COMMON_HEADER_LENGTH = 4;
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| 55 |
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| 56 | static final PcepObjectHeader DEFAULT_FEC_OBJECT_HEADER = new PcepObjectHeader(FEC_OBJ_CLASS, FEC_OBJ_TYPE,
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| 57 | PcepObjectHeader.REQ_OBJ_OPTIONAL_PROCESS, PcepObjectHeader.RSP_OBJ_PROCESSED, FEC_OBJ_MINIMUM_LENGTH);
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| 58 |
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| 59 | private PcepObjectHeader fecObjHeader;
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| 60 | private int localNodeID;
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| 61 | private int localInterfaceID;
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| 62 | private int remoteNodeID;
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| 63 | private int remoteInterfaceID;
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| 64 |
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| 65 | /**
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| 66 | * Constructor to initialize parameter for PCEP fec object.
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| 67 | *
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| 68 | * @param fecObjHeader fec object header
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| 69 | * @param localNodeID local node ID
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| 70 | * @param localInterfaceID local interface ID
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| 71 | * @param remoteNodeID remote node ID
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| 72 | * @param remoteInterfaceID remote interface ID
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| 73 | */
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| 74 | public PcepFecObjectIPv4UnnumberedAdjacencyVer1(PcepObjectHeader fecObjHeader, int localNodeID,
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| 75 | int localInterfaceID, int remoteNodeID, int remoteInterfaceID) {
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| 76 | this.fecObjHeader = fecObjHeader;
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| 77 | this.localNodeID = localNodeID;
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| 78 | this.localInterfaceID = localInterfaceID;
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| 79 | this.remoteNodeID = remoteNodeID;
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| 80 | this.remoteInterfaceID = remoteInterfaceID;
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| 81 | }
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| 82 |
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| 83 | /**
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| 84 | * Sets Object Header.
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| 85 | *
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| 86 | * @param obj object header
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| 87 | */
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| 88 | public void setFecIpv4UnnumberedAdjacencyObjHeader(PcepObjectHeader obj) {
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| 89 | this.fecObjHeader = obj;
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| 90 | }
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| 91 |
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| 92 | @Override
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| 93 | public void setLocalNodeID(int localNodeID) {
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| 94 | this.localNodeID = localNodeID;
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| 95 | }
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| 96 |
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| 97 | /**
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| 98 | * Returns Object Header.
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| 99 | *
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| 100 | * @return fecObjHeader fec object header
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| 101 | */
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| 102 | public PcepObjectHeader getFecIpv4UnnumberedAdjacencyObjHeader() {
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| 103 | return this.fecObjHeader;
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| 104 | }
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| 105 |
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| 106 | @Override
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| 107 | public int getLocalNodeID() {
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| 108 | return this.localNodeID;
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| 109 | }
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| 110 |
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| 111 | @Override
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| 112 | public int getLocalInterfaceID() {
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| 113 | return this.localInterfaceID;
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| 114 | }
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| 115 |
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| 116 | @Override
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| 117 | public void setLocalInterfaceID(int localInterfaceID) {
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| 118 | this.localInterfaceID = localInterfaceID;
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| 119 | }
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| 120 |
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| 121 | @Override
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| 122 | public int getRemoteNodeID() {
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| 123 | return this.remoteNodeID;
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| 124 | }
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| 125 |
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| 126 | @Override
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| 127 | public void setRemoteNodeID(int remoteNodeID) {
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| 128 | this.remoteNodeID = remoteNodeID;
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| 129 | }
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| 130 |
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| 131 | @Override
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| 132 | public int getRemoteInterfaceID() {
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| 133 | return this.remoteInterfaceID;
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| 134 | }
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| 135 |
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| 136 | @Override
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| 137 | public void setRemoteInterfaceID(int remoteInterfaceID) {
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| 138 | this.remoteInterfaceID = remoteInterfaceID;
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| 139 | }
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| 140 |
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| 141 | /**
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| 142 | * Reads from channel buffer and returns object of PcepFecObjectIPv4UnnumberedAdjacency.
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| 143 | *
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| 144 | * @param cb of channel buffer
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| 145 | * @return object of PcepFecObjectIPv4UnnumberedAdjacency
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| 146 | * @throws PcepParseException when fails to read from channel buffer
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| 147 | */
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| 148 | public static PcepFecObjectIPv4UnnumberedAdjacency read(ChannelBuffer cb) throws PcepParseException {
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| 149 |
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| 150 | PcepObjectHeader fecObjHeader;
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| 151 | int localNodeID;
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| 152 | int localInterfaceID;
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| 153 | int remoteNodeID;
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| 154 | int remoteInterfaceID;
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| 155 |
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| 156 | fecObjHeader = PcepObjectHeader.read(cb);
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| 157 |
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| 158 | //take only FEC IPv4 Unnumbered Adjacency Object buffer.
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| 159 | ChannelBuffer tempCb = cb.readBytes(fecObjHeader.getObjLen() - MINIMUM_COMMON_HEADER_LENGTH);
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| 160 | localNodeID = tempCb.readInt();
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| 161 | localInterfaceID = tempCb.readInt();
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| 162 | remoteNodeID = tempCb.readInt();
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| 163 | remoteInterfaceID = tempCb.readInt();
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| 164 |
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| 165 | return new PcepFecObjectIPv4UnnumberedAdjacencyVer1(fecObjHeader, localNodeID, localInterfaceID, remoteNodeID,
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| 166 | remoteInterfaceID);
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| 167 | }
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| 168 |
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| 169 | @Override
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| 170 | public int write(ChannelBuffer cb) throws PcepParseException {
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| 171 |
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| 172 | int objStartIndex = cb.writerIndex();
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| 173 |
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| 174 | //Write common header
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| 175 | int objLenIndex = fecObjHeader.write(cb);
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| 176 | cb.writeInt(localNodeID);
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| 177 | cb.writeInt(localInterfaceID);
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| 178 | cb.writeInt(remoteNodeID);
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| 179 | cb.writeInt(remoteInterfaceID);
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| 180 |
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| 181 | //Now write FEC IPv4 Unnumbered Adjacency Object Length
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| 182 | cb.setShort(objLenIndex, (short) (cb.writerIndex() - objStartIndex));
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| 183 |
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| 184 | return cb.writerIndex();
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| 185 | }
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| 186 |
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| 187 | /**
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| 188 | * Builder class for PCEP Fec object IPv4 unnumbered Adjacency.
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| 189 | */
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| 190 | public static class Builder implements PcepFecObjectIPv4UnnumberedAdjacency.Builder {
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| 191 | private boolean bIsHeaderSet = false;
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| 192 | private boolean bIsLocalNodeIDset = false;
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| 193 | private boolean bIsLocalInterfaceIDset = false;
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| 194 | private boolean bIsRemoteNodeIDset = false;
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| 195 | private boolean bIsRemoteInterfaceIDset = false;
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| 196 |
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| 197 | private PcepObjectHeader fecObjHeader;
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| 198 | private int localNodeID;
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| 199 | private int localInterfaceID;
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| 200 | private int remoteNodeID;
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| 201 | private int remoteInterfaceID;
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| 202 |
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| 203 | private boolean bIsPFlagSet = false;
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| 204 | private boolean bPFlag;
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| 205 |
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| 206 | private boolean bIsIFlagSet = false;
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| 207 | private boolean bIFlag;
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| 208 |
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| 209 | @Override
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| 210 | public PcepFecObjectIPv4UnnumberedAdjacency build() throws PcepParseException {
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| 211 | PcepObjectHeader fecObjHeader = this.bIsHeaderSet ? this.fecObjHeader : DEFAULT_FEC_OBJECT_HEADER;
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| 212 |
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| 213 | if (!this.bIsLocalNodeIDset) {
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| 214 | throw new PcepParseException(
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| 215 | " Local Node ID not set while building PcepFecObjectIPv4UnnumberedAdjacency object.");
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| 216 | }
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| 217 | if (!this.bIsLocalInterfaceIDset) {
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| 218 | throw new PcepParseException(
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| 219 | " Local Interface ID not set while building PcepFecObjectIPv4UnnumberedAdjacency object.");
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| 220 | }
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| 221 | if (!this.bIsRemoteNodeIDset) {
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| 222 | throw new PcepParseException(
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| 223 | " Remote Node ID not set while building PcepFecObjectIPv4UnnumberedAdjacency object.");
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| 224 | }
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| 225 | if (!this.bIsRemoteInterfaceIDset) {
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| 226 | throw new PcepParseException(
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| 227 | " Remote Interface ID not set while building PcepFecObjectIPv4UnnumberedAdjacency object.");
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| 228 | }
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| 229 | if (bIsPFlagSet) {
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| 230 | fecObjHeader.setPFlag(bPFlag);
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| 231 | }
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| 232 | if (bIsIFlagSet) {
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| 233 | fecObjHeader.setIFlag(bIFlag);
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| 234 | }
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| 235 | return new PcepFecObjectIPv4UnnumberedAdjacencyVer1(fecObjHeader, this.localNodeID, this.localInterfaceID,
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| 236 | this.remoteNodeID, this.remoteInterfaceID);
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| 237 | }
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| 238 |
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| 239 | @Override
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| 240 | public Builder setPFlag(boolean value) {
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| 241 | this.bPFlag = value;
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| 242 | this.bIsPFlagSet = true;
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| 243 | return this;
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| 244 | }
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| 245 |
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| 246 | @Override
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| 247 | public Builder setIFlag(boolean value) {
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| 248 | this.bIFlag = value;
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| 249 | this.bIsIFlagSet = true;
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| 250 | return this;
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| 251 | }
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| 252 |
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| 253 | @Override
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| 254 | public PcepObjectHeader getFecIpv4UnnumberedAdjacencyObjHeader() {
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| 255 | return this.fecObjHeader;
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| 256 | }
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| 257 |
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| 258 | @Override
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| 259 | public Builder setFecIpv4UnnumberedAdjacencyObjHeader(PcepObjectHeader obj) {
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| 260 | this.fecObjHeader = obj;
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| 261 | this.bIsHeaderSet = true;
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| 262 | return this;
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| 263 | }
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| 264 |
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| 265 | @Override
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| 266 | public int getLocalNodeID() {
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| 267 | return this.localNodeID;
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| 268 | }
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| 269 |
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| 270 | @Override
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| 271 | public Builder setLocalNodeID(int value) {
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| 272 | this.localNodeID = value;
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| 273 | this.bIsLocalNodeIDset = true;
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| 274 | return this;
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| 275 | }
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| 276 |
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| 277 | @Override
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| 278 | public int getLocalInterfaceID() {
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| 279 | return this.localInterfaceID;
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| 280 | }
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| 281 |
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| 282 | @Override
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| 283 | public Builder setLocalInterfaceID(int value) {
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| 284 | this.localInterfaceID = value;
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| 285 | this.bIsLocalInterfaceIDset = true;
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| 286 | return this;
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| 287 | }
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| 288 |
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| 289 | @Override
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| 290 | public int getRemoteNodeID() {
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| 291 | return this.remoteNodeID;
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| 292 | }
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| 293 |
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| 294 | @Override
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| 295 | public Builder setRemoteNodeID(int value) {
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| 296 | this.remoteNodeID = value;
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| 297 | this.bIsRemoteNodeIDset = true;
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| 298 | return this;
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| 299 | }
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| 300 |
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| 301 | @Override
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| 302 | public int getRemoteInterfaceID() {
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| 303 | return this.remoteInterfaceID;
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| 304 | }
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| 305 |
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| 306 | @Override
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| 307 | public Builder setRemoteInterfaceID(int value) {
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| 308 | this.remoteInterfaceID = value;
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| 309 | this.bIsRemoteInterfaceIDset = true;
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| 310 | return this;
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| 311 | }
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| 312 | }
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| 313 |
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| 314 | @Override
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| 315 | public PcepVersion getVersion() {
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| 316 | return PcepVersion.PCEP_1;
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| 317 | }
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| 318 |
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| 319 | @Override
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| 320 | public int getType() {
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| 321 | return FEC_OBJ_TYPE;
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| 322 | }
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| 323 |
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| 324 | @Override
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| 325 | public String toString() {
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| 326 | return MoreObjects.toStringHelper(getClass()).add("LocalNodeID: ", localNodeID)
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| 327 | .add("LocalInterfaceID: ", localInterfaceID).add("RemoteNodeID: ", remoteNodeID)
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| 328 | .add("RemoteInterfaceID: ", remoteInterfaceID).toString();
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| 329 | }
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| 330 | }
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