Mahesh Poojary S | 5afd06c | 2015-08-21 14:51:04 +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 | package org.onosproject.pcepio.protocol.ver1;
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| 17 |
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| 18 | import java.util.LinkedList;
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| 19 | import java.util.ListIterator;
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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.exceptions.PcepParseException;
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| 23 | import org.onosproject.pcepio.protocol.PcepError;
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| 24 | import org.onosproject.pcepio.protocol.PcepErrorInfo;
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| 25 | import org.onosproject.pcepio.protocol.PcepErrorObject;
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| 26 | import org.onosproject.pcepio.protocol.PcepRPObject;
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| 27 | import org.onosproject.pcepio.protocol.PcepTEObject;
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| 28 | import org.onosproject.pcepio.types.PcepObjectHeader;
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| 29 | import org.slf4j.Logger;
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| 30 | import org.slf4j.LoggerFactory;
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| 31 |
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| 32 | import com.google.common.base.MoreObjects;
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| 33 |
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| 34 | /**
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| 35 | * Provides PCEP Error Info.
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| 36 | * Reference :PCEP Extension for Transporting TE Data draft-dhodylee-pce-pcep-te-data-extn-02.
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| 37 | */
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| 38 | public class PcepErrorInfoVer1 implements PcepErrorInfo {
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| 39 |
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| 40 | protected static final Logger log = LoggerFactory.getLogger(PcepErrorInfoVer1.class);
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| 41 | //Error list is optional
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| 42 | private LinkedList<PcepError> errList;
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| 43 |
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| 44 | /**
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| 45 | * Constructor to add PCEP error object to the list.
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| 46 | *
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| 47 | * @param llRPObjList list of PCEP RP object
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| 48 | * @param llTEObjList list of PCEP TE object
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| 49 | * @param llErrObjList list of PCEP error object
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| 50 | */
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| 51 | public PcepErrorInfoVer1(LinkedList<PcepRPObject> llRPObjList, LinkedList<PcepTEObject> llTEObjList,
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| 52 | LinkedList<PcepErrorObject> llErrObjList) {
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| 53 | this.errList = new LinkedList<PcepError>();
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| 54 | if ((null != llErrObjList) && (!llErrObjList.isEmpty())) {
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| 55 | this.errList.add(new PcepErrorVer1(llRPObjList, llTEObjList, llErrObjList));
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| 56 | }
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| 57 | }
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| 58 |
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| 59 | /**
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| 60 | * Constructor to initialize error info.
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| 61 | *
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| 62 | * @param errll linked list or pcep error
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| 63 | */
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| 64 | public PcepErrorInfoVer1(LinkedList<PcepError> errll) {
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| 65 | this.errList = errll;
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| 66 | }
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| 67 |
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| 68 | @Override
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| 69 | public boolean isErrorInfoPresent() {
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| 70 | return (!this.errList.isEmpty()) ? true : false;
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| 71 | }
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| 72 |
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| 73 | @Override
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| 74 | public void read(ChannelBuffer cb) throws PcepParseException {
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| 75 | PcepObjectHeader tempObjHeader;
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| 76 |
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| 77 | while (0 < cb.readableBytes()) {
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| 78 | cb.markReaderIndex();
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| 79 | tempObjHeader = PcepObjectHeader.read(cb);
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| 80 | cb.resetReaderIndex();
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| 81 | byte yObjClass = tempObjHeader.getObjClass();
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| 82 | if ((yObjClass != PcepRPObjectVer1.RP_OBJ_CLASS) && (yObjClass != PcepTEObjectVer1.TE_OBJ_CLASS)
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| 83 | && (yObjClass != PcepErrorObjectVer1.ERROR_OBJ_CLASS)) {
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| 84 | throw new PcepParseException("Unknown Object is present in PCEP-ERROR. Object Class: " + yObjClass);
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| 85 | }
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| 86 |
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| 87 | this.errList.add(PcepErrorVer1.read(cb));
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| 88 | }
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| 89 | }
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| 90 |
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| 91 | @Override
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| 92 | public void write(ChannelBuffer cb) throws PcepParseException {
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| 93 | //write <error>
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| 94 | ListIterator<PcepError> listIterator = errList.listIterator();
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| 95 | while (listIterator.hasNext()) {
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| 96 | PcepError pcepError = listIterator.next();
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| 97 |
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| 98 | //RP Object list is optional
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| 99 | LinkedList<PcepRPObject> llRPObjList = pcepError.getRPObjList();
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| 100 | if (llRPObjList != null) {
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| 101 | ListIterator<PcepRPObject> rpListIterator = llRPObjList.listIterator();
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| 102 | while (rpListIterator.hasNext()) {
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| 103 | rpListIterator.next().write(cb);
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| 104 | }
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| 105 | }
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| 106 |
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| 107 | //TE Object list is optional
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| 108 | LinkedList<PcepTEObject> llTEObjList = pcepError.getTEObjList();
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| 109 | if (llTEObjList != null) {
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| 110 | ListIterator<PcepTEObject> teListIterator = llTEObjList.listIterator();
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| 111 | while (teListIterator.hasNext()) {
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| 112 | teListIterator.next().write(cb);
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| 113 | }
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| 114 | }
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| 115 |
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| 116 | // <error-obj-list> is mandatory
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| 117 | boolean bIsErrorObjListFound = false;
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| 118 |
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| 119 | LinkedList<PcepErrorObject> llErrObjList = pcepError.getErrorObjList();
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| 120 | if (llErrObjList != null) {
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| 121 | ListIterator<PcepErrorObject> errObjListIterator = llErrObjList.listIterator();
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| 122 | while (errObjListIterator.hasNext()) {
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| 123 | errObjListIterator.next().write(cb);
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| 124 | bIsErrorObjListFound = true;
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| 125 | }
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| 126 | }
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| 127 |
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| 128 | if (!bIsErrorObjListFound) {
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| 129 | throw new PcepParseException("<error-obj-list> is mandatory.");
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| 130 | }
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| 131 | }
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| 132 | }
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| 133 |
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| 134 | @Override
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| 135 | public LinkedList<Integer> getErrorType() {
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| 136 | LinkedList<Integer> errorType = new LinkedList<Integer>();
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| 137 | ListIterator<PcepError> listIterator = errList.listIterator();
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| 138 | PcepErrorObject errObj;
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| 139 | int error;
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| 140 | while (listIterator.hasNext()) {
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| 141 | PcepError pcepError = listIterator.next();
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| 142 | LinkedList<PcepErrorObject> llErrObjList = pcepError.getErrorObjList();
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| 143 | if (llErrObjList != null) {
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| 144 | ListIterator<PcepErrorObject> errObjListIterator = llErrObjList.listIterator();
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| 145 | while (errObjListIterator.hasNext()) {
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| 146 | errObj = errObjListIterator.next();
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| 147 | error = errObj.getErrorType();
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| 148 | errorType.add(error);
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| 149 | }
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| 150 | }
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| 151 | }
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| 152 | return errorType;
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| 153 | }
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| 154 |
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| 155 | @Override
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| 156 | public LinkedList<Integer> getErrorValue() {
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| 157 | LinkedList<Integer> errorValue = new LinkedList<Integer>();
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| 158 | ListIterator<PcepError> listIterator = errList.listIterator();
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| 159 | PcepErrorObject errObj;
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| 160 | int error;
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| 161 | while (listIterator.hasNext()) {
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| 162 | PcepError pcepError = listIterator.next();
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| 163 | LinkedList<PcepErrorObject> llErrObjList = pcepError.getErrorObjList();
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| 164 | if (llErrObjList != null) {
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| 165 | ListIterator<PcepErrorObject> errObjListIterator = llErrObjList.listIterator();
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| 166 | while (errObjListIterator.hasNext()) {
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| 167 | errObj = errObjListIterator.next();
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| 168 | error = errObj.getErrorValue();
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| 169 | errorValue.add(error);
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| 170 | }
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| 171 | }
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| 172 | }
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| 173 | return errorValue;
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| 174 | }
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| 175 |
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| 176 | /**
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| 177 | * Builder class for PCEP error info.
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| 178 | */
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| 179 | public static class Builder implements PcepErrorInfo.Builder {
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| 180 | private LinkedList<PcepError> errll;
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| 181 |
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| 182 | @Override
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| 183 | public PcepErrorInfo build() {
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| 184 | return new PcepErrorInfoVer1(errll);
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| 185 | }
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| 186 |
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| 187 | @Override
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| 188 | public LinkedList<PcepError> getPcepErrorList() {
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| 189 | return this.errll;
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| 190 | }
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| 191 |
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| 192 | @Override
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| 193 | public Builder setPcepErrorList(LinkedList<PcepError> errll) {
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| 194 | this.errll = errll;
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| 195 | return this;
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| 196 | }
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| 197 | }
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| 198 |
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| 199 | @Override
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| 200 | public String toString() {
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| 201 | return MoreObjects.toStringHelper(getClass()).add("ErrorList", errList).toString();
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| 202 | }
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| 203 | }
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