Sho SHIMIZU | e81e4db | 2015-09-03 09:44:38 -0700 | [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.pcepio.protocol.ver1; |
| 17 | |
| 18 | import java.util.LinkedList; |
| 19 | import java.util.ListIterator; |
| 20 | |
| 21 | import org.jboss.netty.buffer.ChannelBuffer; |
| 22 | import org.onosproject.pcepio.exceptions.PcepParseException; |
| 23 | import org.onosproject.pcepio.protocol.PcepError; |
| 24 | import org.onosproject.pcepio.protocol.PcepErrorInfo; |
| 25 | import org.onosproject.pcepio.protocol.PcepErrorObject; |
| 26 | import org.onosproject.pcepio.protocol.PcepRPObject; |
| 27 | import org.onosproject.pcepio.protocol.PcepTEObject; |
| 28 | import org.onosproject.pcepio.types.PcepObjectHeader; |
| 29 | import org.slf4j.Logger; |
| 30 | import org.slf4j.LoggerFactory; |
| 31 | |
| 32 | import com.google.common.base.MoreObjects; |
| 33 | |
| 34 | /** |
| 35 | * Provides PCEP Error Info. |
| 36 | * Reference :PCEP Extension for Transporting TE Data draft-dhodylee-pce-pcep-te-data-extn-02. |
| 37 | */ |
| 38 | public class PcepErrorInfoVer1 implements PcepErrorInfo { |
| 39 | |
| 40 | protected static final Logger log = LoggerFactory.getLogger(PcepErrorInfoVer1.class); |
| 41 | //Error list is optional |
| 42 | private LinkedList<PcepError> errList; |
| 43 | |
| 44 | /** |
| 45 | * Constructor to add PCEP error object to the list. |
| 46 | * |
| 47 | * @param llRPObjList list of PCEP RP object |
| 48 | * @param llTEObjList list of PCEP TE object |
| 49 | * @param llErrObjList list of PCEP error object |
| 50 | */ |
| 51 | public PcepErrorInfoVer1(LinkedList<PcepRPObject> llRPObjList, LinkedList<PcepTEObject> llTEObjList, |
| 52 | LinkedList<PcepErrorObject> llErrObjList) { |
Sho SHIMIZU | 9b8274c | 2015-09-04 15:54:24 -0700 | [diff] [blame] | 53 | this.errList = new LinkedList<>(); |
Sho SHIMIZU | 28c91c8 | 2015-09-03 11:40:02 -0700 | [diff] [blame] | 54 | if ((llErrObjList != null) && (!llErrObjList.isEmpty())) { |
Sho SHIMIZU | e81e4db | 2015-09-03 09:44:38 -0700 | [diff] [blame] | 55 | this.errList.add(new PcepErrorVer1(llRPObjList, llTEObjList, llErrObjList)); |
| 56 | } |
| 57 | } |
| 58 | |
| 59 | /** |
| 60 | * Constructor to initialize error info. |
| 61 | * |
| 62 | * @param errll linked list or pcep error |
| 63 | */ |
| 64 | public PcepErrorInfoVer1(LinkedList<PcepError> errll) { |
| 65 | this.errList = errll; |
| 66 | } |
| 67 | |
| 68 | @Override |
| 69 | public boolean isErrorInfoPresent() { |
Phanendra Manda | f346ea8 | 2015-09-04 15:21:39 -0700 | [diff] [blame] | 70 | return !this.errList.isEmpty(); |
Sho SHIMIZU | e81e4db | 2015-09-03 09:44:38 -0700 | [diff] [blame] | 71 | } |
| 72 | |
| 73 | @Override |
| 74 | public void read(ChannelBuffer cb) throws PcepParseException { |
| 75 | PcepObjectHeader tempObjHeader; |
| 76 | |
| 77 | while (0 < cb.readableBytes()) { |
| 78 | cb.markReaderIndex(); |
| 79 | tempObjHeader = PcepObjectHeader.read(cb); |
| 80 | cb.resetReaderIndex(); |
| 81 | byte yObjClass = tempObjHeader.getObjClass(); |
| 82 | if ((yObjClass != PcepRPObjectVer1.RP_OBJ_CLASS) && (yObjClass != PcepTEObjectVer1.TE_OBJ_CLASS) |
| 83 | && (yObjClass != PcepErrorObjectVer1.ERROR_OBJ_CLASS)) { |
| 84 | throw new PcepParseException("Unknown Object is present in PCEP-ERROR. Object Class: " + yObjClass); |
| 85 | } |
| 86 | |
| 87 | this.errList.add(PcepErrorVer1.read(cb)); |
| 88 | } |
| 89 | } |
| 90 | |
| 91 | @Override |
| 92 | public void write(ChannelBuffer cb) throws PcepParseException { |
| 93 | //write <error> |
| 94 | ListIterator<PcepError> listIterator = errList.listIterator(); |
| 95 | while (listIterator.hasNext()) { |
| 96 | PcepError pcepError = listIterator.next(); |
| 97 | |
| 98 | //RP Object list is optional |
| 99 | LinkedList<PcepRPObject> llRPObjList = pcepError.getRPObjList(); |
| 100 | if (llRPObjList != null) { |
| 101 | ListIterator<PcepRPObject> rpListIterator = llRPObjList.listIterator(); |
| 102 | while (rpListIterator.hasNext()) { |
| 103 | rpListIterator.next().write(cb); |
| 104 | } |
| 105 | } |
| 106 | |
| 107 | //TE Object list is optional |
| 108 | LinkedList<PcepTEObject> llTEObjList = pcepError.getTEObjList(); |
| 109 | if (llTEObjList != null) { |
| 110 | ListIterator<PcepTEObject> teListIterator = llTEObjList.listIterator(); |
| 111 | while (teListIterator.hasNext()) { |
| 112 | teListIterator.next().write(cb); |
| 113 | } |
| 114 | } |
| 115 | |
| 116 | // <error-obj-list> is mandatory |
| 117 | boolean bIsErrorObjListFound = false; |
| 118 | |
| 119 | LinkedList<PcepErrorObject> llErrObjList = pcepError.getErrorObjList(); |
| 120 | if (llErrObjList != null) { |
| 121 | ListIterator<PcepErrorObject> errObjListIterator = llErrObjList.listIterator(); |
| 122 | while (errObjListIterator.hasNext()) { |
| 123 | errObjListIterator.next().write(cb); |
| 124 | bIsErrorObjListFound = true; |
| 125 | } |
| 126 | } |
| 127 | |
| 128 | if (!bIsErrorObjListFound) { |
| 129 | throw new PcepParseException("<error-obj-list> is mandatory."); |
| 130 | } |
| 131 | } |
| 132 | } |
| 133 | |
| 134 | @Override |
| 135 | public LinkedList<Integer> getErrorType() { |
Sho SHIMIZU | 9b8274c | 2015-09-04 15:54:24 -0700 | [diff] [blame] | 136 | LinkedList<Integer> errorType = new LinkedList<>(); |
Sho SHIMIZU | e81e4db | 2015-09-03 09:44:38 -0700 | [diff] [blame] | 137 | ListIterator<PcepError> listIterator = errList.listIterator(); |
| 138 | PcepErrorObject errObj; |
| 139 | int error; |
| 140 | while (listIterator.hasNext()) { |
| 141 | PcepError pcepError = listIterator.next(); |
| 142 | LinkedList<PcepErrorObject> llErrObjList = pcepError.getErrorObjList(); |
| 143 | if (llErrObjList != null) { |
| 144 | ListIterator<PcepErrorObject> errObjListIterator = llErrObjList.listIterator(); |
| 145 | while (errObjListIterator.hasNext()) { |
| 146 | errObj = errObjListIterator.next(); |
| 147 | error = errObj.getErrorType(); |
| 148 | errorType.add(error); |
| 149 | } |
| 150 | } |
| 151 | } |
| 152 | return errorType; |
| 153 | } |
| 154 | |
| 155 | @Override |
| 156 | public LinkedList<Integer> getErrorValue() { |
Sho SHIMIZU | 9b8274c | 2015-09-04 15:54:24 -0700 | [diff] [blame] | 157 | LinkedList<Integer> errorValue = new LinkedList<>(); |
Sho SHIMIZU | e81e4db | 2015-09-03 09:44:38 -0700 | [diff] [blame] | 158 | ListIterator<PcepError> listIterator = errList.listIterator(); |
| 159 | PcepErrorObject errObj; |
| 160 | int error; |
| 161 | while (listIterator.hasNext()) { |
| 162 | PcepError pcepError = listIterator.next(); |
| 163 | LinkedList<PcepErrorObject> llErrObjList = pcepError.getErrorObjList(); |
| 164 | if (llErrObjList != null) { |
| 165 | ListIterator<PcepErrorObject> errObjListIterator = llErrObjList.listIterator(); |
| 166 | while (errObjListIterator.hasNext()) { |
| 167 | errObj = errObjListIterator.next(); |
| 168 | error = errObj.getErrorValue(); |
| 169 | errorValue.add(error); |
| 170 | } |
| 171 | } |
| 172 | } |
| 173 | return errorValue; |
| 174 | } |
| 175 | |
| 176 | /** |
| 177 | * Builder class for PCEP error info. |
| 178 | */ |
| 179 | public static class Builder implements PcepErrorInfo.Builder { |
| 180 | private LinkedList<PcepError> errll; |
| 181 | |
| 182 | @Override |
| 183 | public PcepErrorInfo build() { |
| 184 | return new PcepErrorInfoVer1(errll); |
| 185 | } |
| 186 | |
| 187 | @Override |
| 188 | public LinkedList<PcepError> getPcepErrorList() { |
| 189 | return this.errll; |
| 190 | } |
| 191 | |
| 192 | @Override |
| 193 | public Builder setPcepErrorList(LinkedList<PcepError> errll) { |
| 194 | this.errll = errll; |
| 195 | return this; |
| 196 | } |
| 197 | } |
| 198 | |
| 199 | @Override |
| 200 | public String toString() { |
Sho SHIMIZU | 7cdbcf7 | 2015-09-03 14:43:05 -0700 | [diff] [blame] | 201 | return MoreObjects.toStringHelper(getClass()) |
| 202 | .add("ErrorList", errList).toString(); |
Sho SHIMIZU | e81e4db | 2015-09-03 09:44:38 -0700 | [diff] [blame] | 203 | } |
| 204 | } |