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.types;
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| 18 |
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| 19 | import java.util.Objects;
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| 20 |
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| 21 | import org.jboss.netty.buffer.ChannelBuffer;
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| 22 | import org.onosproject.pcepio.protocol.PcepVersion;
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| 23 | import org.slf4j.Logger;
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| 24 | import org.slf4j.LoggerFactory;
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| 25 |
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| 26 | import com.google.common.base.MoreObjects;
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| 27 |
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| 28 | /**
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| 29 | * NexthopUnnumberedIPv4IDTlv provides the next node's ID and Interface ID.
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| 30 | */
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| 31 | public class NexthopUnnumberedIPv4IDTlv implements PcepValueType {
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| 32 |
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| 33 | /*
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| 34 | Reference : draft-zhao-pce-pcep-extension-for-pce-controller-01.
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| 35 |
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| 36 | 0 1 2 3
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| 37 | 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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| 38 | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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| 39 | | Type=TBD | Length = 12 |
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| 40 | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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| 41 | | Node-ID |
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| 42 | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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| 43 | | Interface ID |
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| 44 | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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| 45 |
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| 46 | NEXTHOP-UNNUMBERED-IPV4-ID TLV
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| 47 |
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| 48 | */
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| 49 | protected static final Logger log = LoggerFactory.getLogger(NexthopUnnumberedIPv4IDTlv.class);
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| 50 |
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| 51 | public static final short TYPE = 1; //to be defined
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| 52 | //Length is header + value
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| 53 | public static final short LENGTH = 12;
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| 54 |
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| 55 | private final int nodeID;
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| 56 | private final int interfaceID;
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| 57 |
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| 58 | /**
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| 59 | * constructor to initialize nodeID and interfaceID.
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| 60 | *
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| 61 | * @param nodeID node ID
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| 62 | * @param interfaceID interface ID
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| 63 | */
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| 64 | public NexthopUnnumberedIPv4IDTlv(int nodeID, int interfaceID) {
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| 65 | this.nodeID = nodeID;
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| 66 | this.interfaceID = interfaceID;
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| 67 | }
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| 68 |
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| 69 | /**
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| 70 | * Returns new object of NexthopUnnumberedIPv4IDTlv.
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| 71 | *
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| 72 | * @param nodeID node ID
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| 73 | * @param interfaceID interface ID
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| 74 | * @return NexthopUnnumberedIPv4IDTlv
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| 75 | */
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| 76 | public static NexthopUnnumberedIPv4IDTlv of(int nodeID, int interfaceID) {
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| 77 | return new NexthopUnnumberedIPv4IDTlv(nodeID, interfaceID);
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| 78 | }
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| 79 |
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| 80 | /**
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| 81 | * Returns Node Id.
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| 82 | *
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| 83 | * @return node ID
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| 84 | */
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| 85 | public int getNodeID() {
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| 86 | return nodeID;
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| 87 | }
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| 88 |
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| 89 | /**
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| 90 | * Returns Interface Id.
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| 91 | *
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| 92 | * @return interface ID
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| 93 | */
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| 94 | public int getInterfaceID() {
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| 95 | return interfaceID;
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| 96 | }
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| 97 |
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| 98 | @Override
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| 99 | public PcepVersion getVersion() {
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| 100 | return PcepVersion.PCEP_1;
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| 101 | }
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| 102 |
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| 103 | @Override
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| 104 | public short getType() {
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| 105 | return TYPE;
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| 106 | }
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| 107 |
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| 108 | @Override
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| 109 | public short getLength() {
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| 110 | return LENGTH;
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| 111 | }
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| 112 |
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| 113 | @Override
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| 114 | public int hashCode() {
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| 115 | return Objects.hash(nodeID, interfaceID);
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| 116 | }
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| 117 |
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| 118 | @Override
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| 119 | public boolean equals(Object obj) {
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| 120 | if (this == obj) {
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| 121 | return true;
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| 122 | }
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| 123 | if (obj instanceof NexthopUnnumberedIPv4IDTlv) {
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| 124 | NexthopUnnumberedIPv4IDTlv other = (NexthopUnnumberedIPv4IDTlv) obj;
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| 125 | return Objects.equals(this.nodeID, other.nodeID) && Objects.equals(this.interfaceID, other.interfaceID);
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| 126 | }
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| 127 | return false;
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| 128 | }
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| 129 |
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| 130 | @Override
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| 131 | public int write(ChannelBuffer c) {
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| 132 | int iLenStartIndex = c.writerIndex();
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| 133 | c.writeShort(TYPE);
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| 134 | c.writeShort(LENGTH);
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| 135 |
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| 136 | c.writeInt(nodeID);
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| 137 | c.writeInt(interfaceID);
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| 138 |
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| 139 | return c.writerIndex() - iLenStartIndex;
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| 140 | }
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| 141 |
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| 142 | /**
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| 143 | * Reads the channel buffer and returns object of NexthopUnnumberedIPv4IDTlv.
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| 144 | *
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| 145 | * @param cb type of channel buffer
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| 146 | * @return object of NexthopUnnumberedIPv4IDTlv
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| 147 | */
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| 148 | public static NexthopUnnumberedIPv4IDTlv read(ChannelBuffer cb) {
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| 149 | int nodeID = cb.readInt();
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| 150 | int interfaceID = cb.readInt();
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| 151 | return new NexthopUnnumberedIPv4IDTlv(nodeID, interfaceID);
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| 152 | }
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| 153 |
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| 154 | @Override
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| 155 | public String toString() {
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| 156 | return MoreObjects.toStringHelper(getClass()).add("Type", TYPE).add("Length", LENGTH).add("NodeId", nodeID)
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| 157 | .add("InterfaceId", interfaceID).toString();
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| 158 | }
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| 159 | }
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