Yafit Hadar | f8caac0 | 2015-08-25 10:21:44 +0300 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2015, ECI Telecom, Inc. |
| 3 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | * you may not use this file except in compliance with the License. |
| 5 | * You may obtain a copy of the License at |
| 6 | |
| 7 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | |
| 9 | * Unless required by applicable law or agreed to in writing, software |
| 10 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 11 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 | * See the License for the specific language governing permissions and |
| 13 | * limitations under the License. |
| 14 | |
| 15 | */ |
| 16 | package org.projectfloodlight.openflow.types; |
| 17 | |
| 18 | |
| 19 | import java.util.List; |
| 20 | |
| 21 | import org.jboss.netty.buffer.ChannelBuffer; |
| 22 | |
| 23 | import com.google.common.collect.ComparisonChain; |
| 24 | import com.google.common.primitives.UnsignedBytes; |
| 25 | import com.google.common.hash.PrimitiveSink; |
| 26 | |
| 27 | import org.projectfloodlight.openflow.exceptions.OFParseError; |
| 28 | import org.projectfloodlight.openflow.protocol.*; |
| 29 | import com.google.common.hash.Funnel; |
| 30 | import org.projectfloodlight.openflow.util.*; |
| 31 | import java.util.Arrays; |
| 32 | |
| 33 | public class OduSignalID implements OFValueType<OduSignalID> { |
| 34 | |
| 35 | // version: 1.3 |
| 36 | final static byte WIRE_VERSION = 4; |
| 37 | final static int MINIMUM_LENGTH = 4; |
| 38 | |
| 39 | private final static int DEFAULT_TPN = 0x0; |
| 40 | private final static int DEFAULT_TSLEN = 80; |
| 41 | private final static byte[] DEFAULT_TSMAP = new byte[10]; |
| 42 | |
| 43 | // OF message fields |
| 44 | private final int tpn; |
| 45 | private final int tslen; |
| 46 | private final byte[] tsmap; |
| 47 | |
| 48 | // Immutable default instance |
| 49 | public final static OduSignalID DEFAULT = new OduSignalID( |
| 50 | DEFAULT_TPN, DEFAULT_TSLEN, DEFAULT_TSMAP |
| 51 | ); |
| 52 | |
| 53 | // package private constructor - used by readers, builders, and factory |
| 54 | public OduSignalID(int tpn, int tslen, byte[] tsmap) { |
| 55 | this.tpn = tpn; |
| 56 | this.tslen = tslen; |
| 57 | this.tsmap = tsmap; |
| 58 | } |
| 59 | |
| 60 | public int getTpn() { |
| 61 | return tpn; |
| 62 | } |
| 63 | |
| 64 | public int getTslen() { |
| 65 | return tslen; |
| 66 | } |
| 67 | |
| 68 | public byte[] getTsmap() { |
| 69 | return tsmap; |
| 70 | } |
| 71 | |
| 72 | |
| 73 | @Override |
| 74 | public int getLength() { |
| 75 | return MINIMUM_LENGTH + 12; // tslen == 80 |
| 76 | } |
| 77 | |
| 78 | public void writeTo(ChannelBuffer c) { |
| 79 | c.writeShort(tpn); |
| 80 | c.writeShort(tslen); |
| 81 | c.writeBytes(tsmap); // 10 bytes |
| 82 | c.writeZero(2); // write bytes for add padding alignment (the size of bytes in tsmap must be divided in 4) |
| 83 | } |
| 84 | |
| 85 | public static OduSignalID readFrom(ChannelBuffer c) { |
| 86 | int tpn = U16.f(c.readShort()); |
| 87 | int tslen = U16.f(c.readShort()); |
| 88 | byte[] tsmap = null; |
| 89 | tsmap =ChannelUtils.readBytes(c, 10); |
| 90 | ChannelUtils.readBytes(c, 2); // skip padding |
| 91 | OduSignalID oduSigId = new OduSignalID( |
| 92 | tpn, |
| 93 | tslen, |
| 94 | tsmap |
| 95 | ); |
| 96 | return oduSigId; |
| 97 | } |
| 98 | |
| 99 | |
| 100 | public void putTo(PrimitiveSink sink) { |
| 101 | FUNNEL.funnel(this, sink); |
| 102 | } |
| 103 | |
| 104 | final static OduSignalIDFunnel FUNNEL = new OduSignalIDFunnel(); |
| 105 | static class OduSignalIDFunnel implements Funnel< OduSignalID> { |
| 106 | private static final long serialVersionUID = 1L; |
| 107 | @Override |
| 108 | public void funnel( OduSignalID message, PrimitiveSink sink) { |
| 109 | sink.putInt(message.tpn); |
| 110 | sink.putInt(message.tslen); |
| 111 | sink.putBytes(message.tsmap); |
| 112 | } |
| 113 | } |
| 114 | |
| 115 | @Override |
| 116 | public String toString() { |
| 117 | StringBuilder b = new StringBuilder(" OduSignalID("); |
| 118 | b.append("tpn=").append(tpn); |
| 119 | b.append(", "); |
| 120 | b.append("tslen=").append(tslen); |
| 121 | b.append(", "); |
| 122 | b.append("tsmap=").append(Arrays.toString(tsmap)); |
| 123 | b.append(")"); |
| 124 | return b.toString(); |
| 125 | } |
| 126 | |
| 127 | @Override |
| 128 | public boolean equals(Object obj) { |
| 129 | if (this == obj) |
| 130 | return true; |
| 131 | if (obj == null) |
| 132 | return false; |
| 133 | if (getClass() != obj.getClass()) |
| 134 | return false; |
| 135 | OduSignalID other = (OduSignalID) obj; |
| 136 | |
| 137 | if( tpn != other.tpn) |
| 138 | return false; |
| 139 | if( tslen != other.tslen) |
| 140 | return false; |
| 141 | if (!Arrays.equals(tsmap, other.tsmap)) |
| 142 | return false; |
| 143 | return true; |
| 144 | } |
| 145 | |
| 146 | @Override |
| 147 | public int hashCode() { |
| 148 | final int prime = 31; |
| 149 | int result = 1; |
| 150 | |
| 151 | result = prime * result + tpn; |
| 152 | result = prime * result + tslen; |
| 153 | result = prime * result + Arrays.hashCode(tsmap); |
| 154 | return result; |
| 155 | } |
| 156 | |
| 157 | @Override |
| 158 | public OduSignalID applyMask(OduSignalID mask) { |
| 159 | byte[] maskTsmap = null; |
| 160 | if (this.tsmap!=null && this.tsmap.length > 0) { |
| 161 | maskTsmap = new byte[this.tsmap.length]; |
| 162 | int i = 0; |
| 163 | for (byte b : this.tsmap){ |
| 164 | maskTsmap[i] =(byte) (b & mask.tsmap[i++]); |
| 165 | } |
| 166 | } |
| 167 | return new OduSignalID(this.tpn & mask.tpn, |
| 168 | (short) (this.tslen & mask |
| 169 | .tslen), |
| 170 | maskTsmap); |
| 171 | } |
| 172 | |
| 173 | @Override |
| 174 | public int compareTo(OduSignalID o) { |
| 175 | return ComparisonChain.start() |
| 176 | .compare(tpn,o.tpn) |
| 177 | .compare(tslen,o.tslen) |
| 178 | .compare(tsmap,o.tsmap, UnsignedBytes.lexicographicalComparator()) |
| 179 | .result(); |
| 180 | } |
| 181 | |
| 182 | } |