Thejaswi NK | cd4a90e | 2015-10-14 19:08:46 +0530 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2015 Open Networking Laboratory |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | package org.onosproject.bgpio.types.attr; |
| 17 | |
| 18 | import java.util.ArrayList; |
| 19 | import java.util.List; |
| 20 | import java.util.Objects; |
| 21 | |
| 22 | import org.jboss.netty.buffer.ChannelBuffer; |
| 23 | import org.onosproject.bgpio.exceptions.BGPParseException; |
| 24 | import org.onosproject.bgpio.types.BGPErrorType; |
| 25 | import org.onosproject.bgpio.types.BGPValueType; |
| 26 | import org.onosproject.bgpio.util.Validation; |
| 27 | |
| 28 | import com.google.common.base.MoreObjects; |
| 29 | |
| 30 | /** |
| 31 | * Implements BGP link Shared Risk Link Group attribute. |
| 32 | */ |
| 33 | public class BgpLinkAttrSrlg implements BGPValueType { |
| 34 | |
| 35 | public static final short ATTRNODE_SRLG = 1097; |
| 36 | |
| 37 | /* Shared Risk Link Group */ |
| 38 | private List<Integer> sRlg = new ArrayList<Integer>(); |
| 39 | |
| 40 | /** |
| 41 | * Constructor to initialize the date. |
| 42 | * |
| 43 | * @param sRlg Shared Risk link group data |
| 44 | */ |
| 45 | public BgpLinkAttrSrlg(List<Integer> sRlg) { |
| 46 | this.sRlg = sRlg; |
| 47 | } |
| 48 | |
| 49 | /** |
| 50 | * Returns object of this class with specified values. |
| 51 | * |
| 52 | * @param sRlg Shared Risk link group data |
| 53 | * @return object of BgpLinkAttrSrlg |
| 54 | */ |
| 55 | public static BgpLinkAttrSrlg of(ArrayList<Integer> sRlg) { |
| 56 | return new BgpLinkAttrSrlg(sRlg); |
| 57 | } |
| 58 | |
| 59 | /** |
| 60 | * Reads the BGP link attributes Shared Risk link group data. |
| 61 | * |
| 62 | * @param cb Channel buffer |
| 63 | * @return object of type BgpLinkAttrSrlg |
| 64 | * @throws BGPParseException while parsing BgpLinkAttrSrlg |
| 65 | */ |
| 66 | public static BgpLinkAttrSrlg read(ChannelBuffer cb) |
| 67 | throws BGPParseException { |
| 68 | int tempSrlg; |
| 69 | ArrayList<Integer> sRlg = new ArrayList<Integer>(); |
| 70 | |
| 71 | short lsAttrLength = cb.readShort(); |
| 72 | int len = lsAttrLength / Integer.SIZE; // each element is of 4 octets |
| 73 | |
| 74 | if (cb.readableBytes() < lsAttrLength) { |
| 75 | Validation.validateLen(BGPErrorType.UPDATE_MESSAGE_ERROR, |
| 76 | BGPErrorType.ATTRIBUTE_LENGTH_ERROR, |
| 77 | lsAttrLength); |
| 78 | } |
| 79 | |
| 80 | for (int i = 0; i < len; i++) { |
| 81 | tempSrlg = cb.readInt(); |
| 82 | sRlg.add(new Integer(tempSrlg)); |
| 83 | } |
| 84 | |
| 85 | return BgpLinkAttrSrlg.of(sRlg); |
| 86 | } |
| 87 | |
| 88 | /** |
| 89 | * Returns the Shared Risk link group data. |
| 90 | * |
| 91 | * @return array of Shared Risk link group data |
| 92 | */ |
| 93 | public List<Integer> attrSrlg() { |
| 94 | return sRlg; |
| 95 | } |
| 96 | |
| 97 | @Override |
| 98 | public short getType() { |
| 99 | return ATTRNODE_SRLG; |
| 100 | } |
| 101 | |
| 102 | @Override |
| 103 | public int hashCode() { |
| 104 | return Objects.hash(sRlg); |
| 105 | } |
| 106 | |
| 107 | @Override |
| 108 | public boolean equals(Object obj) { |
| 109 | if (this == obj) { |
| 110 | return true; |
| 111 | } |
| 112 | |
| 113 | if (obj instanceof BgpLinkAttrSrlg) { |
| 114 | BgpLinkAttrSrlg other = (BgpLinkAttrSrlg) obj; |
| 115 | return Objects.equals(sRlg, other.sRlg); |
| 116 | } |
| 117 | return false; |
| 118 | } |
| 119 | |
| 120 | @Override |
| 121 | public int write(ChannelBuffer cb) { |
| 122 | // TODO This will be implemented in the next version |
| 123 | return 0; |
| 124 | } |
| 125 | |
| 126 | @Override |
| 127 | public String toString() { |
| 128 | return MoreObjects.toStringHelper(getClass()).omitNullValues().add("sRlg", sRlg).toString(); |
| 129 | } |
| 130 | } |