Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2016-present 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 | |
| 17 | package org.onosproject.yangutils.linker.impl; |
| 18 | |
Bharat saraswal | 96dfef0 | 2016-06-16 00:29:12 +0530 | [diff] [blame] | 19 | import java.io.Serializable; |
Vidyashree Rama | deac28b | 2016-06-20 15:12:43 +0530 | [diff] [blame] | 20 | import java.util.Iterator; |
| 21 | import java.util.List; |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 22 | import java.util.Stack; |
Bharat saraswal | 96dfef0 | 2016-06-16 00:29:12 +0530 | [diff] [blame] | 23 | |
| 24 | import org.onosproject.yangutils.datamodel.Resolvable; |
janani b | e18b534 | 2016-07-13 21:06:41 +0530 | [diff] [blame^] | 25 | import org.onosproject.yangutils.datamodel.ResolvableType; |
| 26 | import org.onosproject.yangutils.datamodel.YangAtomicPath; |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 27 | import org.onosproject.yangutils.datamodel.YangDerivedInfo; |
Vidyashree Rama | deac28b | 2016-06-20 15:12:43 +0530 | [diff] [blame] | 28 | import org.onosproject.yangutils.datamodel.YangEntityToResolveInfo; |
| 29 | import org.onosproject.yangutils.datamodel.YangFeature; |
| 30 | import org.onosproject.yangutils.datamodel.YangFeatureHolder; |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 31 | import org.onosproject.yangutils.datamodel.YangGrouping; |
Vidyashree Rama | deac28b | 2016-06-20 15:12:43 +0530 | [diff] [blame] | 32 | import org.onosproject.yangutils.datamodel.YangIfFeature; |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 33 | import org.onosproject.yangutils.datamodel.YangImport; |
| 34 | import org.onosproject.yangutils.datamodel.YangInclude; |
janani b | e18b534 | 2016-07-13 21:06:41 +0530 | [diff] [blame^] | 35 | import org.onosproject.yangutils.datamodel.YangInput; |
| 36 | import org.onosproject.yangutils.datamodel.YangLeaf; |
| 37 | import org.onosproject.yangutils.datamodel.YangLeafList; |
| 38 | import org.onosproject.yangutils.datamodel.YangLeafRef; |
| 39 | import org.onosproject.yangutils.datamodel.YangLeavesHolder; |
| 40 | import org.onosproject.yangutils.datamodel.YangList; |
| 41 | import org.onosproject.yangutils.datamodel.YangModule; |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 42 | import org.onosproject.yangutils.datamodel.YangNode; |
Vidyashree Rama | deac28b | 2016-06-20 15:12:43 +0530 | [diff] [blame] | 43 | import org.onosproject.yangutils.datamodel.YangNodeIdentifier; |
janani b | e18b534 | 2016-07-13 21:06:41 +0530 | [diff] [blame^] | 44 | import org.onosproject.yangutils.datamodel.YangOutput; |
| 45 | import org.onosproject.yangutils.datamodel.YangPathArgType; |
| 46 | import org.onosproject.yangutils.datamodel.YangPathPredicate; |
Gaurav Agrawal | 95b416c | 2016-06-07 14:00:26 +0530 | [diff] [blame] | 47 | import org.onosproject.yangutils.datamodel.YangReferenceResolver; |
janani b | e18b534 | 2016-07-13 21:06:41 +0530 | [diff] [blame^] | 48 | import org.onosproject.yangutils.datamodel.YangRelativePath; |
Gaurav Agrawal | 95b416c | 2016-06-07 14:00:26 +0530 | [diff] [blame] | 49 | import org.onosproject.yangutils.datamodel.YangResolutionInfo; |
janani b | e18b534 | 2016-07-13 21:06:41 +0530 | [diff] [blame^] | 50 | import org.onosproject.yangutils.datamodel.YangRpc; |
| 51 | import org.onosproject.yangutils.datamodel.YangSubModule; |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 52 | import org.onosproject.yangutils.datamodel.YangType; |
| 53 | import org.onosproject.yangutils.datamodel.YangTypeDef; |
| 54 | import org.onosproject.yangutils.datamodel.YangUses; |
| 55 | import org.onosproject.yangutils.datamodel.exceptions.DataModelException; |
Bharat saraswal | 96dfef0 | 2016-06-16 00:29:12 +0530 | [diff] [blame] | 56 | import org.onosproject.yangutils.datamodel.utils.ResolvableStatus; |
janani b | e18b534 | 2016-07-13 21:06:41 +0530 | [diff] [blame^] | 57 | import org.onosproject.yangutils.datamodel.utils.builtindatatype.YangDataTypes; |
VinodKumarS-Huawei | 2ee9e7e | 2016-06-01 14:30:22 +0530 | [diff] [blame] | 58 | import org.onosproject.yangutils.linker.YangLinkingPhase; |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 59 | |
Bharat saraswal | 96dfef0 | 2016-06-16 00:29:12 +0530 | [diff] [blame] | 60 | import static org.onosproject.yangutils.datamodel.utils.ResolvableStatus.INTER_FILE_LINKED; |
| 61 | import static org.onosproject.yangutils.datamodel.utils.ResolvableStatus.INTRA_FILE_RESOLVED; |
| 62 | import static org.onosproject.yangutils.datamodel.utils.ResolvableStatus.LINKED; |
| 63 | import static org.onosproject.yangutils.datamodel.utils.ResolvableStatus.RESOLVED; |
Vidyashree Rama | deac28b | 2016-06-20 15:12:43 +0530 | [diff] [blame] | 64 | import static org.onosproject.yangutils.datamodel.utils.ResolvableStatus.UNDEFINED; |
Bharat saraswal | 96dfef0 | 2016-06-16 00:29:12 +0530 | [diff] [blame] | 65 | import static org.onosproject.yangutils.datamodel.utils.ResolvableStatus.UNRESOLVED; |
VinodKumarS-Huawei | 2ee9e7e | 2016-06-01 14:30:22 +0530 | [diff] [blame] | 66 | import static org.onosproject.yangutils.linker.YangLinkingPhase.INTER_FILE; |
| 67 | import static org.onosproject.yangutils.linker.YangLinkingPhase.INTRA_FILE; |
Vidyashree Rama | deac28b | 2016-06-20 15:12:43 +0530 | [diff] [blame] | 68 | import static org.onosproject.yangutils.utils.UtilConstants.FEATURE_LINKER_ERROR; |
Vidyashree Rama | 210c01d | 2016-05-20 16:29:25 +0530 | [diff] [blame] | 69 | import static org.onosproject.yangutils.utils.UtilConstants.GROUPING_LINKER_ERROR; |
janani b | e18b534 | 2016-07-13 21:06:41 +0530 | [diff] [blame^] | 70 | import static org.onosproject.yangutils.utils.UtilConstants.INPUT; |
| 71 | import static org.onosproject.yangutils.utils.UtilConstants.LEAFREF; |
| 72 | import static org.onosproject.yangutils.utils.UtilConstants.LEAFREF_LINKER_ERROR; |
| 73 | import static org.onosproject.yangutils.utils.UtilConstants.OUTPUT; |
Gaurav Agrawal | 95b416c | 2016-06-07 14:00:26 +0530 | [diff] [blame] | 74 | import static org.onosproject.yangutils.utils.UtilConstants.TYPEDEF_LINKER_ERROR; |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 75 | |
| 76 | /** |
Gaurav Agrawal | 95b416c | 2016-06-07 14:00:26 +0530 | [diff] [blame] | 77 | * Represents implementation of resolution object which will be resolved by |
| 78 | * linker. |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 79 | * |
| 80 | * @param <T> type of resolution entity uses / type |
| 81 | */ |
Gaurav Agrawal | 95b416c | 2016-06-07 14:00:26 +0530 | [diff] [blame] | 82 | public class YangResolutionInfoImpl<T> |
Bharat saraswal | 96dfef0 | 2016-06-16 00:29:12 +0530 | [diff] [blame] | 83 | implements YangResolutionInfo<T>, Serializable { |
| 84 | |
| 85 | private static final long serialVersionUID = 806201658L; |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 86 | |
| 87 | /** |
| 88 | * Information about the entity that needs to be resolved. |
| 89 | */ |
Gaurav Agrawal | 95b416c | 2016-06-07 14:00:26 +0530 | [diff] [blame] | 90 | private YangEntityToResolveInfoImpl<T> entityToResolveInfo; |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 91 | |
| 92 | /** |
| 93 | * Error line number. |
| 94 | */ |
Vidyashree Rama | deac28b | 2016-06-20 15:12:43 +0530 | [diff] [blame] | 95 | private transient int lineNumber; |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 96 | |
| 97 | /** |
| 98 | * Error character position in number. |
| 99 | */ |
Bharat saraswal | 96dfef0 | 2016-06-16 00:29:12 +0530 | [diff] [blame] | 100 | private transient int charPosition; |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 101 | |
| 102 | /** |
| 103 | * Current module/sub-module reference, will be used in inter-file/ |
| 104 | * inter-jar scenario to get the import/include list. |
| 105 | */ |
Bharat saraswal | 96dfef0 | 2016-06-16 00:29:12 +0530 | [diff] [blame] | 106 | private transient YangReferenceResolver curReferenceResolver; |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 107 | |
| 108 | /** |
| 109 | * Stack for type/uses is maintained for hierarchical references, this is |
| 110 | * used during resolution. |
| 111 | */ |
Gaurav Agrawal | 95b416c | 2016-06-07 14:00:26 +0530 | [diff] [blame] | 112 | private Stack<YangEntityToResolveInfoImpl<T>> partialResolvedStack; |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 113 | |
| 114 | /** |
| 115 | * It is private to ensure the overloaded method be invoked to create an |
| 116 | * object. |
| 117 | */ |
| 118 | @SuppressWarnings("unused") |
Gaurav Agrawal | 95b416c | 2016-06-07 14:00:26 +0530 | [diff] [blame] | 119 | private YangResolutionInfoImpl() { |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 120 | |
| 121 | } |
| 122 | |
| 123 | /** |
| 124 | * Creates a resolution information object with all the inputs. |
| 125 | * |
| 126 | * @param dataNode current parsable data node |
| 127 | * @param holderNode parent YANG node |
| 128 | * @param lineNumber error line number |
| 129 | * @param charPositionInLine error character position in line |
| 130 | */ |
Gaurav Agrawal | 95b416c | 2016-06-07 14:00:26 +0530 | [diff] [blame] | 131 | public YangResolutionInfoImpl(T dataNode, YangNode holderNode, int lineNumber, int charPositionInLine) { |
| 132 | setEntityToResolveInfo(new YangEntityToResolveInfoImpl<>()); |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 133 | getEntityToResolveInfo().setEntityToResolve(dataNode); |
| 134 | getEntityToResolveInfo().setHolderOfEntityToResolve(holderNode); |
| 135 | this.setLineNumber(lineNumber); |
| 136 | this.setCharPosition(charPositionInLine); |
| 137 | setPartialResolvedStack(new Stack<>()); |
| 138 | } |
| 139 | |
Gaurav Agrawal | 95b416c | 2016-06-07 14:00:26 +0530 | [diff] [blame] | 140 | @Override |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 141 | public void resolveLinkingForResolutionInfo(YangReferenceResolver dataModelRootNode) |
| 142 | throws DataModelException { |
| 143 | |
| 144 | setCurReferenceResolver(dataModelRootNode); |
| 145 | |
janani b | e18b534 | 2016-07-13 21:06:41 +0530 | [diff] [blame^] | 146 | // Current node to resolve, it can be a YANG type, YANG uses or YANG if-feature or YANG leafref. |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 147 | T entityToResolve = getEntityToResolveInfo().getEntityToResolve(); |
| 148 | |
| 149 | // Check if linking is already done |
| 150 | if (entityToResolve instanceof Resolvable) { |
| 151 | Resolvable resolvable = (Resolvable) entityToResolve; |
| 152 | if (resolvable.getResolvableStatus() == RESOLVED) { |
| 153 | /** |
| 154 | * entity is already resolved, so nothing to do |
| 155 | */ |
| 156 | return; |
| 157 | } |
| 158 | } else { |
Vidyashree Rama | deac28b | 2016-06-20 15:12:43 +0530 | [diff] [blame] | 159 | throw new DataModelException("Data Model Exception: Entity to resolved is other than " + |
janani b | e18b534 | 2016-07-13 21:06:41 +0530 | [diff] [blame^] | 160 | "type/uses/if-feature/leafref"); |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 161 | } |
| 162 | |
| 163 | // Push the initial entity to resolve in stack. |
| 164 | addInPartialResolvedStack(getEntityToResolveInfo()); |
| 165 | |
| 166 | linkAndResolvePartialResolvedStack(); |
janani b | e18b534 | 2016-07-13 21:06:41 +0530 | [diff] [blame^] | 167 | |
| 168 | addDerivedRefTypeToRefTypeResolutionList(); |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 169 | } |
| 170 | |
| 171 | /** |
| 172 | * Resolves linking with ancestors. |
| 173 | * |
| 174 | * @throws DataModelException a violation of data model rules |
| 175 | */ |
| 176 | private void linkAndResolvePartialResolvedStack() |
| 177 | throws DataModelException { |
| 178 | |
| 179 | while (getPartialResolvedStack().size() != 0) { |
| 180 | |
| 181 | // Current node to resolve, it can be a YANG type or YANG uses. |
| 182 | T entityToResolve = getCurrentEntityToResolveFromStack(); |
| 183 | // Check if linking is already done |
| 184 | if (entityToResolve instanceof Resolvable) { |
| 185 | |
| 186 | Resolvable resolvable = (Resolvable) entityToResolve; |
| 187 | switch (resolvable.getResolvableStatus()) { |
Vidyashree Rama | deac28b | 2016-06-20 15:12:43 +0530 | [diff] [blame] | 188 | case RESOLVED: { |
| 189 | /* |
| 190 | * If the entity is already resolved in the stack, then pop |
| 191 | * it and continue with the remaining stack elements to |
| 192 | * resolve |
| 193 | */ |
| 194 | getPartialResolvedStack().pop(); |
| 195 | break; |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 196 | } |
Vidyashree Rama | deac28b | 2016-06-20 15:12:43 +0530 | [diff] [blame] | 197 | |
| 198 | case LINKED: { |
| 199 | /* |
| 200 | * If the top of the stack is already linked then resolve |
| 201 | * the references and pop the entity and continue with |
| 202 | * remaining stack elements to resolve. |
| 203 | */ |
| 204 | resolveTopOfStack(INTRA_FILE); |
| 205 | getPartialResolvedStack().pop(); |
| 206 | break; |
| 207 | } |
| 208 | |
| 209 | case INTRA_FILE_RESOLVED: { |
| 210 | /* |
| 211 | * Pop the top of the stack. |
| 212 | */ |
| 213 | getPartialResolvedStack().pop(); |
| 214 | break; |
| 215 | } |
| 216 | |
| 217 | case UNRESOLVED: { |
| 218 | linkTopOfStackReferenceUpdateStack(); |
| 219 | |
| 220 | if (resolvable.getResolvableStatus() == UNRESOLVED) { |
| 221 | // If current entity is still not resolved, then |
| 222 | // linking/resolution has failed. |
| 223 | String errorInfo; |
| 224 | if (resolvable instanceof YangType) { |
| 225 | errorInfo = TYPEDEF_LINKER_ERROR; |
| 226 | } else if (resolvable instanceof YangUses) { |
| 227 | errorInfo = GROUPING_LINKER_ERROR; |
janani b | e18b534 | 2016-07-13 21:06:41 +0530 | [diff] [blame^] | 228 | } else if (resolvable instanceof YangIfFeature) { |
Vidyashree Rama | deac28b | 2016-06-20 15:12:43 +0530 | [diff] [blame] | 229 | errorInfo = FEATURE_LINKER_ERROR; |
janani b | e18b534 | 2016-07-13 21:06:41 +0530 | [diff] [blame^] | 230 | } else { |
| 231 | errorInfo = LEAFREF_LINKER_ERROR; |
Vidyashree Rama | deac28b | 2016-06-20 15:12:43 +0530 | [diff] [blame] | 232 | } |
| 233 | DataModelException dataModelException = |
| 234 | new DataModelException(errorInfo); |
| 235 | dataModelException.setLine(getLineNumber()); |
| 236 | dataModelException.setCharPosition(getCharPosition()); |
| 237 | throw dataModelException; |
| 238 | } |
| 239 | break; |
| 240 | } |
| 241 | default: { |
| 242 | throw new DataModelException("Data Model Exception: Unsupported, linker state"); |
| 243 | } |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 244 | |
| 245 | } |
| 246 | |
| 247 | } else { |
janani b | e18b534 | 2016-07-13 21:06:41 +0530 | [diff] [blame^] | 248 | throw new DataModelException( |
| 249 | "Data Model Exception: Entity to resolved is other than type/uses/if-feature/leafref"); |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 250 | } |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 251 | } |
| 252 | |
| 253 | } |
| 254 | |
| 255 | /** |
janani b | e18b534 | 2016-07-13 21:06:41 +0530 | [diff] [blame^] | 256 | * Adds the leafref type to the type, which has derived type referring to typedef with leafref type. |
| 257 | */ |
| 258 | private void addDerivedRefTypeToRefTypeResolutionList() throws DataModelException { |
| 259 | |
| 260 | YangNode potentialAncestorWithReferredNode = getEntityToResolveInfo().getHolderOfEntityToResolve(); |
| 261 | |
| 262 | // If holder is typedef return. |
| 263 | if (potentialAncestorWithReferredNode instanceof YangTypeDef) { |
| 264 | return; |
| 265 | } |
| 266 | |
| 267 | // If entity is not type return. |
| 268 | if (!(getEntityToResolveInfo().getEntityToResolve() instanceof YangType)) { |
| 269 | return; |
| 270 | } |
| 271 | |
| 272 | YangType yangType = (YangType) getEntityToResolveInfo().getEntityToResolve(); |
| 273 | |
| 274 | // If type is not resolved return. |
| 275 | if (yangType.getResolvableStatus() != RESOLVED) { |
| 276 | return; |
| 277 | } |
| 278 | |
| 279 | YangDerivedInfo derivedInfo = (YangDerivedInfo) yangType.getDataTypeExtendedInfo(); |
| 280 | |
| 281 | /* |
| 282 | * If the derived types referred type is not leaf ref return |
| 283 | */ |
| 284 | if (derivedInfo.getEffectiveBuiltInType() != YangDataTypes.LEAFREF) { |
| 285 | return; |
| 286 | } |
| 287 | |
| 288 | T extendedInfo = (T) derivedInfo.getReferredTypeDef().getTypeDefBaseType().getDataTypeExtendedInfo(); |
| 289 | |
| 290 | while (extendedInfo instanceof YangDerivedInfo) { |
| 291 | YangDerivedInfo derivedInfoFromTypedef = (YangDerivedInfo) extendedInfo; |
| 292 | extendedInfo = (T) derivedInfoFromTypedef.getReferredTypeDef().getTypeDefBaseType() |
| 293 | .getDataTypeExtendedInfo(); |
| 294 | } |
| 295 | /* |
| 296 | * Backup the derived types leaf ref info, delete all the info in |
| 297 | * current type, but for resolution status as resolved. Copy the backed |
| 298 | * up leaf ref to types extended info, create a leaf ref resolution info |
| 299 | * using the current resolution info and add to leaf ref resolution |
| 300 | * list. |
| 301 | */ |
| 302 | YangLeafRef leafRefInTypeDef = (YangLeafRef) extendedInfo; |
| 303 | yangType.resetYangType(); |
| 304 | |
| 305 | yangType.setResolvableStatus(RESOLVED); |
| 306 | yangType.setDataType(YangDataTypes.LEAFREF); |
| 307 | yangType.setDataTypeName(LEAFREF); |
| 308 | yangType.setDataTypeExtendedInfo(leafRefInTypeDef); |
| 309 | leafRefInTypeDef.setResolvableStatus(UNRESOLVED); |
| 310 | |
| 311 | // Add resolution information to the list. |
| 312 | YangResolutionInfoImpl resolutionInfoImpl = new YangResolutionInfoImpl<>(leafRefInTypeDef, |
| 313 | potentialAncestorWithReferredNode, getLineNumber(), getCharPosition()); |
| 314 | getCurReferenceResolver().addToResolutionList(resolutionInfoImpl, |
| 315 | ResolvableType.YANG_LEAFREF); |
| 316 | getCurReferenceResolver().resolveSelfFileLinking(ResolvableType.YANG_LEAFREF); |
| 317 | } |
| 318 | |
| 319 | /** |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 320 | * Resolves the current entity in the stack. |
| 321 | */ |
VinodKumarS-Huawei | 2ee9e7e | 2016-06-01 14:30:22 +0530 | [diff] [blame] | 322 | private void resolveTopOfStack(YangLinkingPhase linkingPhase) |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 323 | throws DataModelException { |
| 324 | ((Resolvable) getCurrentEntityToResolveFromStack()).resolve(); |
Vidyashree Rama | deac28b | 2016-06-20 15:12:43 +0530 | [diff] [blame] | 325 | if (((Resolvable) getCurrentEntityToResolveFromStack()).getResolvableStatus() != INTRA_FILE_RESOLVED |
| 326 | && ((Resolvable) getCurrentEntityToResolveFromStack()).getResolvableStatus() != UNDEFINED) { |
janani b | e18b534 | 2016-07-13 21:06:41 +0530 | [diff] [blame^] | 327 | // Sets the resolution status in inside the type/uses/if-feature/leafref. |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 328 | ((Resolvable) getCurrentEntityToResolveFromStack()).setResolvableStatus(RESOLVED); |
| 329 | } |
| 330 | } |
| 331 | |
| 332 | /** |
| 333 | * Resolves linking for a node child and siblings. |
| 334 | * |
| 335 | * @throws DataModelException data model error |
| 336 | */ |
| 337 | private void linkTopOfStackReferenceUpdateStack() |
| 338 | throws DataModelException { |
| 339 | |
| 340 | /* |
| 341 | * Check if self file reference is there, this will not check for the |
| 342 | * scenario when prefix is not present and type/uses is present in |
| 343 | * sub-module from include list. |
| 344 | */ |
| 345 | if (!isCandidateForSelfFileReference()) { |
| 346 | ((Resolvable) getCurrentEntityToResolveFromStack()).setResolvableStatus(INTRA_FILE_RESOLVED); |
| 347 | return; |
| 348 | } |
| 349 | |
| 350 | /** |
| 351 | * Try to resolve the top of the stack and update partial resolved stack |
| 352 | * if there is recursive references |
| 353 | */ |
| 354 | YangNode potentialAncestorWithReferredNode = getPartialResolvedStack().peek() |
| 355 | .getHolderOfEntityToResolve(); |
| 356 | |
Vidyashree Rama | deac28b | 2016-06-20 15:12:43 +0530 | [diff] [blame] | 357 | if (getCurrentEntityToResolveFromStack() instanceof YangIfFeature) { |
| 358 | resolveSelfFileLinkingForIfFeature(potentialAncestorWithReferredNode); |
| 359 | return; |
janani b | e18b534 | 2016-07-13 21:06:41 +0530 | [diff] [blame^] | 360 | } else if (getCurrentEntityToResolveFromStack() instanceof YangLeafRef) { |
| 361 | resolveSelfFileLinkingForLeafref(potentialAncestorWithReferredNode); |
| 362 | return; |
Vidyashree Rama | deac28b | 2016-06-20 15:12:43 +0530 | [diff] [blame] | 363 | } else { |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 364 | |
| 365 | /** |
Vidyashree Rama | deac28b | 2016-06-20 15:12:43 +0530 | [diff] [blame] | 366 | * Traverse up in the ancestor tree to check if the referred node is |
| 367 | * defined |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 368 | */ |
Vidyashree Rama | deac28b | 2016-06-20 15:12:43 +0530 | [diff] [blame] | 369 | while (potentialAncestorWithReferredNode != null) { |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 370 | |
Vidyashree Rama | deac28b | 2016-06-20 15:12:43 +0530 | [diff] [blame] | 371 | /** |
| 372 | * Check for the referred node defined in a ancestor scope |
| 373 | */ |
| 374 | YangNode potentialReferredNode = potentialAncestorWithReferredNode.getChild(); |
| 375 | if (isReferredNodeInSiblingListProcessed(potentialReferredNode)) { |
| 376 | return; |
| 377 | } |
| 378 | |
| 379 | potentialAncestorWithReferredNode = potentialAncestorWithReferredNode.getParent(); |
| 380 | } |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 381 | } |
| 382 | |
| 383 | /* |
| 384 | * In case prefix is not present it's a candidate for inter-file |
| 385 | * resolution via include list. |
| 386 | */ |
| 387 | if (getRefPrefix() == null) { |
| 388 | ((Resolvable) getCurrentEntityToResolveFromStack()).setResolvableStatus(INTRA_FILE_RESOLVED); |
| 389 | } |
| 390 | } |
| 391 | |
| 392 | /** |
janani b | e18b534 | 2016-07-13 21:06:41 +0530 | [diff] [blame^] | 393 | * Resolves self file linking for leafref. |
| 394 | * |
| 395 | * @param potentialAncestorWithReferredNode leafref holder node |
| 396 | * @throws DataModelException a violation of data model rules |
| 397 | */ |
| 398 | private void resolveSelfFileLinkingForLeafref(YangNode potentialAncestorWithReferredNode) |
| 399 | throws DataModelException { |
| 400 | |
| 401 | YangNode ancestorWithTheReferredNode = potentialAncestorWithReferredNode; |
| 402 | YangLeafRef leafref = (YangLeafRef) getCurrentEntityToResolveFromStack(); |
| 403 | boolean referredLeafFound = false; |
| 404 | |
| 405 | /* |
| 406 | * Takes absolute path and takes the root node as module/sub-module, |
| 407 | * then sends the list of nodes for finding the target leaf. |
| 408 | */ |
| 409 | if (leafref.getPathType() == YangPathArgType.ABSOLUTE_PATH) { |
| 410 | List<YangAtomicPath> atomicPathList = leafref.getAtomicPath(); |
| 411 | if (atomicPathList != null && !atomicPathList.isEmpty()) { |
| 412 | Iterator<YangAtomicPath> listOfYangAtomicPath = atomicPathList.listIterator(); |
| 413 | if (getCurReferenceResolver() instanceof YangModule) { |
| 414 | YangModule rootNode = (YangModule) getCurReferenceResolver(); |
| 415 | // Sends list of nodes for finding the target leaf. |
| 416 | referredLeafFound = isLeafReferenceFound(listOfYangAtomicPath, rootNode, |
| 417 | referredLeafFound, potentialAncestorWithReferredNode); |
| 418 | } else if (getCurReferenceResolver() instanceof YangSubModule) { |
| 419 | YangSubModule rootNode = (YangSubModule) getCurReferenceResolver(); |
| 420 | // Sends list of nodes for finding the target leaf. |
| 421 | referredLeafFound = isLeafReferenceFound(listOfYangAtomicPath, rootNode, |
| 422 | referredLeafFound, potentialAncestorWithReferredNode); |
| 423 | } |
| 424 | } |
| 425 | /* |
| 426 | * Takes relative path, goes to the parent node by using the |
| 427 | * ancestor count and sends the list of nodes for finding the target |
| 428 | * leaf. |
| 429 | */ |
| 430 | } else if (leafref.getPathType() == YangPathArgType.RELATIVE_PATH) { |
| 431 | YangRelativePath yangRelativePath = leafref.getRelativePath(); |
| 432 | int parentNodes = yangRelativePath.getAncestorNodeCount(); |
| 433 | List<YangAtomicPath> atomicPathList = yangRelativePath.getAtomicPathList(); |
| 434 | if (atomicPathList != null && !atomicPathList.isEmpty()) { |
| 435 | Iterator<YangAtomicPath> listOfAtomicPath = atomicPathList.listIterator(); |
| 436 | // Gets the root node from ancestor count. |
| 437 | YangNode rootparentNode = getRootNodeWithAncestorCount(parentNodes, ancestorWithTheReferredNode); |
| 438 | // Sends list of nodes for finding the target leaf. |
| 439 | referredLeafFound = isLeafReferenceFound(listOfAtomicPath, rootparentNode, |
| 440 | referredLeafFound, potentialAncestorWithReferredNode); |
| 441 | } |
| 442 | } |
| 443 | if (referredLeafFound) { |
| 444 | return; |
| 445 | } |
| 446 | /* |
| 447 | * In case prefix is not present it's a candidate for inter-file |
| 448 | * resolution via include list. |
| 449 | */ |
| 450 | if (getRefPrefix() == null) { |
| 451 | ((Resolvable) getCurrentEntityToResolveFromStack()).setResolvableStatus(INTRA_FILE_RESOLVED); |
| 452 | } |
| 453 | } |
| 454 | |
| 455 | /** |
| 456 | * Returns the root parent with respect to the ancestor count from leafref. |
| 457 | * |
| 458 | * @param ancestorCount count of node where parent node can be reached |
| 459 | * @param currentParent current parent node |
| 460 | * @return root node |
| 461 | * @throws DataModelException a violation of data model rules |
| 462 | */ |
| 463 | private YangNode getRootNodeWithAncestorCount(int ancestorCount, YangNode currentParent) |
| 464 | throws DataModelException { |
| 465 | |
| 466 | int currentParentCount = 1; |
| 467 | while (currentParentCount < ancestorCount) { |
| 468 | if (currentParent.getParent() == null) { |
| 469 | throw new DataModelException("YANG file error: The target node of leafref is invalid."); |
| 470 | } |
| 471 | currentParent = currentParent.getParent(); |
| 472 | currentParentCount = currentParentCount + 1; |
| 473 | } |
| 474 | return currentParent; |
| 475 | } |
| 476 | |
| 477 | /** |
Vidyashree Rama | deac28b | 2016-06-20 15:12:43 +0530 | [diff] [blame] | 478 | * Resolves self file linking for if-feature. |
| 479 | * |
| 480 | * @param potentialAncestorWithReferredNode if-feature holder node |
| 481 | * @throws DataModelException DataModelException a violation of data model |
| 482 | * rules |
| 483 | */ |
| 484 | private void resolveSelfFileLinkingForIfFeature(YangNode potentialAncestorWithReferredNode) |
| 485 | throws DataModelException { |
| 486 | |
| 487 | YangFeatureHolder featureHolder = getFeatureHolder(potentialAncestorWithReferredNode); |
| 488 | YangNode potentialReferredNode = (YangNode) featureHolder; |
| 489 | if (isReferredNode(potentialReferredNode)) { |
| 490 | |
| 491 | // Adds reference link of entity to the node under resolution. |
| 492 | addReferredEntityLink(potentialReferredNode, LINKED); |
| 493 | |
| 494 | /** |
| 495 | * resolve the reference and update the partial resolution stack |
| 496 | * with any further recursive references |
| 497 | */ |
| 498 | addUnresolvedRecursiveReferenceToStack(potentialReferredNode); |
| 499 | return; |
| 500 | } |
| 501 | |
| 502 | /* |
| 503 | * In case prefix is not present it's a candidate for inter-file |
| 504 | * resolution via include list. |
| 505 | */ |
| 506 | if (getRefPrefix() == null) { |
| 507 | ((Resolvable) getCurrentEntityToResolveFromStack()).setResolvableStatus(INTRA_FILE_RESOLVED); |
| 508 | } |
| 509 | } |
| 510 | |
janani b | e18b534 | 2016-07-13 21:06:41 +0530 | [diff] [blame^] | 511 | /** |
| 512 | * Returns the status of the referred leaf/leaf-list found for leafref. |
| 513 | * |
| 514 | * @param listOfYangAtomicPath list of atomic paths |
| 515 | * @param ancestorWithTheReferredNode the parent node of leafref |
| 516 | * @param referredLeafFound status of referred leaf/leaf-list |
| 517 | * @param potentialAncestorWithReferredNode holder of the leafref leaf |
| 518 | * @return status of referred leaf |
| 519 | * @throws DataModelException a violation of data model rules |
| 520 | */ |
| 521 | private boolean isLeafReferenceFound(Iterator<YangAtomicPath> listOfYangAtomicPath, |
| 522 | YangNode ancestorWithTheReferredNode, boolean referredLeafFound, YangNode potentialAncestorWithReferredNode) |
| 523 | throws DataModelException { |
| 524 | |
| 525 | while (listOfYangAtomicPath.hasNext()) { |
| 526 | YangAtomicPath atomicPath = listOfYangAtomicPath.next(); |
| 527 | String nodeName = atomicPath.getNodeIdentifier().getName(); |
| 528 | |
| 529 | // When child is not present, only leaf/leaf-list is available in the node. |
| 530 | if (ancestorWithTheReferredNode.getChild() == null) { |
| 531 | referredLeafFound = isReferredLeafOrLeafListFound(ancestorWithTheReferredNode, nodeName, (T) LINKED); |
| 532 | break; |
| 533 | } |
| 534 | ancestorWithTheReferredNode = ancestorWithTheReferredNode.getChild(); |
| 535 | |
| 536 | // Checks all the siblings under the node and returns the matched node. |
| 537 | YangNode nodeFound = isReferredNodeInSiblingProcessedForLeafref(ancestorWithTheReferredNode, nodeName); |
| 538 | |
| 539 | // When node is not found in all the siblings, leaf-list may be the node we have to find. |
| 540 | if (nodeFound == null) { |
| 541 | referredLeafFound = isReferredLeafOrLeafListFound(ancestorWithTheReferredNode.getParent(), nodeName, |
| 542 | (T) LINKED); |
| 543 | } else { |
| 544 | ancestorWithTheReferredNode = nodeFound; |
| 545 | |
| 546 | // For the node check if path predicate is present and fill its values. |
| 547 | List<YangPathPredicate> pathPredicateList = atomicPath.getPathPredicatesList(); |
| 548 | if (pathPredicateList != null && !pathPredicateList.isEmpty()) { |
| 549 | Iterator<YangPathPredicate> listOfYangPathPredicate = pathPredicateList.listIterator(); |
| 550 | fillPathPredicatesForTheNode(ancestorWithTheReferredNode, listOfYangPathPredicate, |
| 551 | potentialAncestorWithReferredNode); |
| 552 | } |
| 553 | } |
| 554 | |
| 555 | // If leaf is also not found and node is also not found return the status as false. |
| 556 | if (!referredLeafFound && nodeFound == null) { |
| 557 | break; |
| 558 | } |
| 559 | } |
| 560 | return referredLeafFound; |
| 561 | } |
| 562 | |
| 563 | /** |
| 564 | * Fills the referred leaf or leaf-list inside the path predicates. |
| 565 | * |
| 566 | * @param ancestorWithTheReferredNode the actual node where YANG list will be present |
| 567 | * @param listOfYangPathPredicate the path predicates present for the node |
| 568 | * @param potentialAncestorWithReferredNode the current leaf node parent |
| 569 | * @throws DataModelException a violation of data model rules |
| 570 | */ |
| 571 | private void fillPathPredicatesForTheNode(YangNode ancestorWithTheReferredNode, |
| 572 | Iterator<YangPathPredicate> listOfYangPathPredicate, YangNode potentialAncestorWithReferredNode) |
| 573 | throws DataModelException { |
| 574 | |
| 575 | while (listOfYangPathPredicate.hasNext()) { |
| 576 | if (!(ancestorWithTheReferredNode instanceof YangList)) { |
| 577 | throw new DataModelException("YANG file error: The path predicates are applicable only for list"); |
| 578 | } |
| 579 | YangPathPredicate pathPredicate = listOfYangPathPredicate.next(); |
| 580 | YangNodeIdentifier leftNode = pathPredicate.getNodeIdentifier(); |
| 581 | YangRelativePath relativePath = pathPredicate.getRightRelativePath(); |
| 582 | |
| 583 | // Checks that the left axis is filled in the path predicate. |
| 584 | boolean isLeftLeafOrLeafListSetForLeftAxis = getLeftLeafOrLeafListInPredicate( |
| 585 | (YangList) ancestorWithTheReferredNode, pathPredicate, leftNode); |
| 586 | if (!isLeftLeafOrLeafListSetForLeftAxis) { |
| 587 | throw new DataModelException( |
| 588 | "YANG file error: The path predicate is not referring to an existing leaf/leaflist"); |
| 589 | } |
| 590 | int parentNodes = relativePath.getAncestorNodeCount(); |
| 591 | |
| 592 | // Finds the root node for the right relative path. |
| 593 | YangNode rootParentNode = getRootNodeWithAncestorCount(parentNodes, potentialAncestorWithReferredNode); |
| 594 | |
| 595 | // Finds the leaf/leaf-list from the right side relative path. |
| 596 | resolveRightAxisNodeInPathPredicate(relativePath, rootParentNode, pathPredicate); |
| 597 | } |
| 598 | } |
| 599 | |
| 600 | /** |
| 601 | * Resolves the right axis node in the path predicate. |
| 602 | * |
| 603 | * @param relativePath the relative path in the path predicate |
| 604 | * @param rootParentNode parent node from where the node has to be found |
| 605 | * @param pathPredicate data tree reference in YANG list |
| 606 | * @throws DataModelException a violation of data model rules |
| 607 | */ |
| 608 | private void resolveRightAxisNodeInPathPredicate(YangRelativePath relativePath, YangNode rootParentNode, |
| 609 | YangPathPredicate pathPredicate) throws DataModelException { |
| 610 | |
| 611 | List<YangAtomicPath> absolutePathList = relativePath.getAtomicPathList(); |
| 612 | if (absolutePathList != null && !absolutePathList.isEmpty()) { |
| 613 | Iterator<YangAtomicPath> listOfYangAtomicPathForRightRelative = absolutePathList.listIterator(); |
| 614 | while (listOfYangAtomicPathForRightRelative.hasNext()) { |
| 615 | boolean isRightAxisNodeFound = false; |
| 616 | YangAtomicPath absolutePathInPredicate = listOfYangAtomicPathForRightRelative.next(); |
| 617 | String nodeNameInAtomicPath = absolutePathInPredicate.getNodeIdentifier().getName(); |
| 618 | |
| 619 | // When child is not there check the leaf/leaf-list. |
| 620 | if (rootParentNode.getChild() == null) { |
| 621 | isRightAxisNodeFound = isReferredLeafOrLeafListFound(rootParentNode, |
| 622 | nodeNameInAtomicPath, (T) pathPredicate); |
| 623 | if (!isRightAxisNodeFound) { |
| 624 | throw new DataModelException( |
| 625 | "YANG file error: The path predicates is not referring to an existing leaf/leaflist"); |
| 626 | } |
| 627 | break; |
| 628 | } |
| 629 | rootParentNode = rootParentNode.getChild(); |
| 630 | YangNode nodeFoundInTheRelativePath = isReferredNodeInSiblingProcessedForLeafref( |
| 631 | rootParentNode, nodeNameInAtomicPath); |
| 632 | |
| 633 | if (nodeFoundInTheRelativePath == null) { |
| 634 | |
| 635 | // When node is not found check the leaf/leaf-list. |
| 636 | isRightAxisNodeFound = isReferredLeafOrLeafListFound(rootParentNode.getParent(), |
| 637 | nodeNameInAtomicPath, (T) pathPredicate); |
| 638 | } else { |
| 639 | rootParentNode = nodeFoundInTheRelativePath; |
| 640 | } |
| 641 | if (!isRightAxisNodeFound && nodeFoundInTheRelativePath == null) { |
| 642 | throw new DataModelException( |
| 643 | "YANG file error: The path predicates is not referring to an existing leaf/leaflist"); |
| 644 | } |
| 645 | } |
| 646 | } |
| 647 | } |
| 648 | |
| 649 | /** |
| 650 | * Returns the status, if referred leaf/leaf-list is found. |
| 651 | * |
| 652 | * @param ancestorWithTheReferredNode the parent node of leaf/leaf-list |
| 653 | * @param nodeName the name of the leaf/leaf-list |
| 654 | * @param statusOrPathPredicate the status to be set for the leaf-ref or the path predicate |
| 655 | * @return status of the target node is found |
| 656 | * @throws DataModelException a violation of data model rules |
| 657 | */ |
| 658 | private boolean isReferredLeafOrLeafListFound(YangNode ancestorWithTheReferredNode, String nodeName, |
| 659 | T statusOrPathPredicate) throws DataModelException { |
| 660 | |
| 661 | if (!(ancestorWithTheReferredNode instanceof YangLeavesHolder)) { |
| 662 | throw new DataModelException("Yang file error: The target node of leafref is invalid."); |
| 663 | } |
| 664 | YangLeavesHolder leavesHolder = (YangLeavesHolder) ancestorWithTheReferredNode; |
| 665 | if (leavesHolder.getListOfLeaf() != null) { |
| 666 | Iterator<YangLeaf> yangLeavesList = leavesHolder.getListOfLeaf().listIterator(); |
| 667 | while (yangLeavesList.hasNext()) { |
| 668 | YangLeaf yangleaf = yangLeavesList.next(); |
| 669 | if (yangleaf.getName().contentEquals(nodeName)) { |
| 670 | if (statusOrPathPredicate instanceof ResolvableStatus) { |
| 671 | ResolvableStatus status = (ResolvableStatus) statusOrPathPredicate; |
| 672 | |
| 673 | // Sets the referred leaf to YANG leafref. |
| 674 | ((YangLeafRef) getCurrentEntityToResolveFromStack()).setReferredLeafOrLeafList(yangleaf); |
| 675 | |
| 676 | // Adds reference link of entity to the node under resolution. |
| 677 | addReferredEntityLink(ancestorWithTheReferredNode, status); |
| 678 | addUnResolvedLeafRefTypeToStack((T) yangleaf, ancestorWithTheReferredNode); |
| 679 | return true; |
| 680 | } else if (statusOrPathPredicate instanceof YangPathPredicate) { |
| 681 | YangPathPredicate pathPredicate = (YangPathPredicate) statusOrPathPredicate; |
| 682 | |
| 683 | // Sets the right axis node. |
| 684 | pathPredicate.setRightAxisNode(yangleaf); |
| 685 | return true; |
| 686 | } else { |
| 687 | throw new DataModelException("YANG file error: The target node of leafref is invalid."); |
| 688 | } |
| 689 | } |
| 690 | } |
| 691 | } |
| 692 | if (leavesHolder.getListOfLeafList() != null) { |
| 693 | Iterator<YangLeafList> yangLeafListList = leavesHolder.getListOfLeafList().listIterator(); |
| 694 | while (yangLeafListList.hasNext()) { |
| 695 | YangLeafList yangLeaflist = yangLeafListList.next(); |
| 696 | if (yangLeaflist.getName().contentEquals(nodeName)) { |
| 697 | if (statusOrPathPredicate instanceof ResolvableStatus) { |
| 698 | ResolvableStatus status = (ResolvableStatus) statusOrPathPredicate; |
| 699 | |
| 700 | // Sets the referred leaf-list to YANG leafref. |
| 701 | ((YangLeafRef) getCurrentEntityToResolveFromStack()).setReferredLeafOrLeafList(yangLeaflist); |
| 702 | |
| 703 | // Adds reference link of entity to the node under resolution. |
| 704 | addReferredEntityLink(ancestorWithTheReferredNode, status); |
| 705 | addUnResolvedLeafRefTypeToStack((T) yangLeaflist, ancestorWithTheReferredNode); |
| 706 | return true; |
| 707 | } else if (statusOrPathPredicate instanceof YangPathPredicate) { |
| 708 | YangPathPredicate pathPredicate = (YangPathPredicate) statusOrPathPredicate; |
| 709 | pathPredicate.setRightAxisNode(yangLeaflist); |
| 710 | return true; |
| 711 | } else { |
| 712 | throw new DataModelException("YANG file error: The target node of leafref is invalid."); |
| 713 | } |
| 714 | } |
| 715 | } |
| 716 | } |
| 717 | return false; |
| 718 | } |
| 719 | |
| 720 | /** |
| 721 | * Adds the unresolved constructs to stack which has to be resolved for leafref. |
| 722 | * |
| 723 | * @param yangleafOrLeafList YANG leaf or leaf list which holds the type |
| 724 | * @param ancestorWithTheReferredNode holder of the YANG leaf or leaf list |
| 725 | */ |
| 726 | private void addUnResolvedLeafRefTypeToStack(T yangleafOrLeafList, YangNode ancestorWithTheReferredNode) { |
| 727 | |
| 728 | YangType referredTypeInLeafOrLeafList; |
| 729 | if (yangleafOrLeafList instanceof YangLeaf) { |
| 730 | YangLeaf leaf = (YangLeaf) yangleafOrLeafList; |
| 731 | referredTypeInLeafOrLeafList = leaf.getDataType(); |
| 732 | if (referredTypeInLeafOrLeafList.getDataType() == YangDataTypes.LEAFREF) { |
| 733 | YangEntityToResolveInfoImpl<YangLeafRef<?>> unResolvedEntityInfo = new YangEntityToResolveInfoImpl<>(); |
| 734 | unResolvedEntityInfo.setEntityToResolve((YangLeafRef<?>) leaf.getDataType().getDataTypeExtendedInfo()); |
| 735 | unResolvedEntityInfo.setHolderOfEntityToResolve(ancestorWithTheReferredNode); |
| 736 | addInPartialResolvedStack((YangEntityToResolveInfoImpl<T>) unResolvedEntityInfo); |
| 737 | } else if (referredTypeInLeafOrLeafList.getDataType() == YangDataTypes.DERIVED) { |
| 738 | YangEntityToResolveInfoImpl<YangType<?>> unResolvedEntityInfo = new YangEntityToResolveInfoImpl<>(); |
| 739 | unResolvedEntityInfo.setEntityToResolve(referredTypeInLeafOrLeafList); |
| 740 | unResolvedEntityInfo.setHolderOfEntityToResolve(ancestorWithTheReferredNode); |
| 741 | addInPartialResolvedStack((YangEntityToResolveInfoImpl<T>) unResolvedEntityInfo); |
| 742 | } |
| 743 | } else { |
| 744 | YangLeafList leafList = (YangLeafList) yangleafOrLeafList; |
| 745 | referredTypeInLeafOrLeafList = leafList.getDataType(); |
| 746 | if (referredTypeInLeafOrLeafList.getDataType() == YangDataTypes.LEAFREF) { |
| 747 | YangEntityToResolveInfoImpl<YangLeafRef<?>> unResolvedEntityInfo = new YangEntityToResolveInfoImpl<>(); |
| 748 | unResolvedEntityInfo |
| 749 | .setEntityToResolve((YangLeafRef<?>) leafList.getDataType().getDataTypeExtendedInfo()); |
| 750 | unResolvedEntityInfo.setHolderOfEntityToResolve(ancestorWithTheReferredNode); |
| 751 | addInPartialResolvedStack((YangEntityToResolveInfoImpl<T>) unResolvedEntityInfo); |
| 752 | } else if (referredTypeInLeafOrLeafList.getDataType() == YangDataTypes.DERIVED) { |
| 753 | YangEntityToResolveInfoImpl<YangType<?>> unResolvedEntityInfo = new YangEntityToResolveInfoImpl<>(); |
| 754 | unResolvedEntityInfo.setEntityToResolve(referredTypeInLeafOrLeafList); |
| 755 | unResolvedEntityInfo.setHolderOfEntityToResolve(ancestorWithTheReferredNode); |
| 756 | addInPartialResolvedStack((YangEntityToResolveInfoImpl<T>) unResolvedEntityInfo); |
| 757 | } |
| 758 | } |
| 759 | } |
| 760 | |
| 761 | /** |
| 762 | * Returns true if referred leaf/leaf-list is found in a particular node. This is for path in path predicate. |
| 763 | * |
| 764 | * @param listForLeaf list node where referred leaf is found |
| 765 | * @param pathPredicate path predicate instance where the value of nodes to be found are available |
| 766 | * @param leftNode node identifier of the left side parameter in path predicate |
| 767 | * @return status of the leaf/leaf-list found |
| 768 | */ |
| 769 | private boolean getLeftLeafOrLeafListInPredicate(YangList listForLeaf, YangPathPredicate pathPredicate, |
| 770 | YangNodeIdentifier leftNode) { |
| 771 | |
| 772 | if (listForLeaf.getListOfLeaf() != null) { |
| 773 | Iterator<YangLeaf> yangLeavesUnderList = listForLeaf.getListOfLeaf().listIterator(); |
| 774 | while (yangLeavesUnderList.hasNext()) { |
| 775 | YangLeaf yangleafUnderList = yangLeavesUnderList.next(); |
| 776 | if (yangleafUnderList.getName().contentEquals(leftNode.getName())) { |
| 777 | pathPredicate.setLeftAxisNode(yangleafUnderList); |
| 778 | return true; |
| 779 | } |
| 780 | } |
| 781 | } |
| 782 | if (listForLeaf.getListOfLeafList() != null) { |
| 783 | Iterator<YangLeafList> yangLeavesListUnderList = listForLeaf.getListOfLeafList().listIterator(); |
| 784 | while (yangLeavesListUnderList.hasNext()) { |
| 785 | YangLeafList yangleafListUnderList = yangLeavesListUnderList.next(); |
| 786 | if (yangleafListUnderList.getName().contentEquals(leftNode.getName())) { |
| 787 | pathPredicate.setLeftAxisNode(yangleafListUnderList); |
| 788 | return true; |
| 789 | } |
| 790 | } |
| 791 | } |
| 792 | return false; |
| 793 | } |
Vidyashree Rama | deac28b | 2016-06-20 15:12:43 +0530 | [diff] [blame] | 794 | |
| 795 | /** |
| 796 | * Returns feature holder(module/sub-module node) . |
| 797 | * |
| 798 | * @param potentialAncestorWithReferredNode if-feature holder node |
| 799 | */ |
| 800 | private YangFeatureHolder getFeatureHolder(YangNode potentialAncestorWithReferredNode) { |
| 801 | while (potentialAncestorWithReferredNode != null) { |
| 802 | if (potentialAncestorWithReferredNode instanceof YangFeatureHolder) { |
| 803 | return (YangFeatureHolder) potentialAncestorWithReferredNode; |
| 804 | } |
| 805 | potentialAncestorWithReferredNode = potentialAncestorWithReferredNode.getParent(); |
| 806 | } |
| 807 | return null; |
| 808 | } |
| 809 | |
| 810 | /** |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 811 | * Checks if the reference in self file or in external file. |
| 812 | * |
| 813 | * @return true if self file reference, false otherwise |
| 814 | * @throws DataModelException a violation of data model rules |
| 815 | */ |
VinodKumarS-Huawei | 2ee9e7e | 2016-06-01 14:30:22 +0530 | [diff] [blame] | 816 | private boolean isCandidateForSelfFileReference() |
| 817 | throws DataModelException { |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 818 | String prefix = getRefPrefix(); |
| 819 | return prefix == null || prefix.contentEquals(getCurReferenceResolver().getPrefix()); |
| 820 | } |
| 821 | |
| 822 | /** |
janani b | e18b534 | 2016-07-13 21:06:41 +0530 | [diff] [blame^] | 823 | * Checks for the referred parent node for the leafref path. |
| 824 | * |
| 825 | * @param potentialReferredNode potential referred node |
| 826 | * @return the reffered parent node of leaf/leaf-list |
| 827 | * @throws DataModelException data model errors |
| 828 | */ |
| 829 | private YangNode isReferredNodeInSiblingProcessedForLeafref(YangNode potentialReferredNode, String referredNodeName) |
| 830 | throws DataModelException { |
| 831 | |
| 832 | while (potentialReferredNode != null) { |
| 833 | if (potentialReferredNode instanceof YangInput) { |
| 834 | if (referredNodeName.equalsIgnoreCase(INPUT)) { |
| 835 | return potentialReferredNode; |
| 836 | } |
| 837 | } else if (potentialReferredNode instanceof YangOutput) { |
| 838 | if (referredNodeName.equalsIgnoreCase(OUTPUT)) { |
| 839 | return potentialReferredNode; |
| 840 | } |
| 841 | } |
| 842 | // Check if the potential referred node is the actual referred node |
| 843 | if (isReferredNodeForLeafref(potentialReferredNode, referredNodeName)) { |
| 844 | if (potentialReferredNode instanceof YangGrouping || potentialReferredNode instanceof YangTypeDef) { |
| 845 | if (potentialReferredNode.getParent() instanceof YangRpc) { |
| 846 | potentialReferredNode = potentialReferredNode.getNextSibling(); |
| 847 | } else { |
| 848 | throw new DataModelException("YANG file error: The target node of leafref is invalid."); |
| 849 | } |
| 850 | } |
| 851 | return potentialReferredNode; |
| 852 | } |
| 853 | potentialReferredNode = potentialReferredNode.getNextSibling(); |
| 854 | } |
| 855 | return null; |
| 856 | } |
| 857 | |
| 858 | /** |
| 859 | * Checks if the current reference node name and the name in the path are equal. |
| 860 | * |
| 861 | * @param currentReferredNode the node where the reference is pointed |
| 862 | * @param nameOfNodeinPath name of the node in the path |
| 863 | * @return status of the match between the name |
| 864 | * @throws DataModelException a violation of data model rules |
| 865 | */ |
| 866 | private boolean isReferredNodeForLeafref(YangNode currentReferredNode, String nameOfNodeinPath) |
| 867 | throws DataModelException { |
| 868 | |
| 869 | if (getCurrentEntityToResolveFromStack() instanceof YangLeafRef) { |
| 870 | /* |
| 871 | * Check if name of node name matches with the current reference |
| 872 | * node. |
| 873 | */ |
| 874 | return currentReferredNode.getName().contentEquals(nameOfNodeinPath); |
| 875 | } else { |
| 876 | throw new DataModelException("Data Model Exception: Entity to resolved is other than leafref"); |
| 877 | } |
| 878 | } |
| 879 | |
| 880 | /** |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 881 | * Checks for the referred node defined in a ancestor scope. |
| 882 | * |
| 883 | * @param potentialReferredNode potential referred node |
| 884 | * @return status of resolution and updating the partial resolved stack with |
| 885 | * the any recursive references |
janani b | e18b534 | 2016-07-13 21:06:41 +0530 | [diff] [blame^] | 886 | * @throws DataModelException a violation of data model rules |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 887 | */ |
| 888 | private boolean isReferredNodeInSiblingListProcessed(YangNode potentialReferredNode) |
| 889 | throws DataModelException { |
| 890 | while (potentialReferredNode != null) { |
| 891 | |
| 892 | // Check if the potential referred node is the actual referred node |
| 893 | if (isReferredNode(potentialReferredNode)) { |
| 894 | |
| 895 | // Adds reference link of entity to the node under resolution. |
| 896 | addReferredEntityLink(potentialReferredNode, LINKED); |
| 897 | |
| 898 | /** |
| 899 | * resolve the reference and update the partial resolution stack |
| 900 | * with any further recursive references |
| 901 | */ |
| 902 | addUnresolvedRecursiveReferenceToStack(potentialReferredNode); |
| 903 | |
| 904 | /* |
| 905 | * return true, since the reference is linked and any recursive |
| 906 | * unresolved references is added to the stack |
| 907 | */ |
| 908 | return true; |
| 909 | } |
| 910 | |
| 911 | potentialReferredNode = potentialReferredNode.getNextSibling(); |
| 912 | } |
| 913 | return false; |
| 914 | } |
| 915 | |
| 916 | /** |
| 917 | * Checks if the potential referred node is the actual referred node. |
| 918 | * |
| 919 | * @param potentialReferredNode typedef/grouping node |
| 920 | * @return true if node is of resolve type otherwise false |
| 921 | * @throws DataModelException a violation of data model rules |
| 922 | */ |
| 923 | private boolean isReferredNode(YangNode potentialReferredNode) |
| 924 | throws DataModelException { |
| 925 | if (getCurrentEntityToResolveFromStack() instanceof YangType) { |
| 926 | if (potentialReferredNode instanceof YangTypeDef) { |
| 927 | /* |
| 928 | * Check if name of node name matches with the entity being |
| 929 | * resolved |
| 930 | */ |
| 931 | return isNodeNameSameAsResolutionInfoName(potentialReferredNode); |
| 932 | } |
| 933 | } else if (getCurrentEntityToResolveFromStack() instanceof YangUses) { |
| 934 | if (potentialReferredNode instanceof YangGrouping) { |
| 935 | /* |
| 936 | * Check if name of node name matches with the entity being |
| 937 | * resolved |
| 938 | */ |
| 939 | return isNodeNameSameAsResolutionInfoName(potentialReferredNode); |
| 940 | } |
Vidyashree Rama | deac28b | 2016-06-20 15:12:43 +0530 | [diff] [blame] | 941 | } else if (getCurrentEntityToResolveFromStack() instanceof YangIfFeature) { |
| 942 | if (potentialReferredNode instanceof YangFeatureHolder) { |
| 943 | /* |
| 944 | * Check if name of node name matches with the entity being |
| 945 | * resolved |
| 946 | */ |
| 947 | return isNodeNameSameAsResolutionInfoName(potentialReferredNode); |
| 948 | } |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 949 | } else { |
| 950 | throw new DataModelException("Data Model Exception: Entity to resolved is other than type/uses"); |
| 951 | } |
| 952 | return false; |
| 953 | } |
| 954 | |
| 955 | /** |
| 956 | * Checks if node name is same as name in resolution info, i.e. name of |
| 957 | * typedef/grouping is same as name of type/uses. |
| 958 | * |
| 959 | * @param node typedef/grouping node |
| 960 | * @return true if node name is same as name in resolution info, otherwise |
| 961 | * false |
| 962 | * @throws DataModelException a violation of data model rules |
| 963 | */ |
| 964 | |
| 965 | private boolean isNodeNameSameAsResolutionInfoName(YangNode node) |
| 966 | throws DataModelException { |
| 967 | if (getCurrentEntityToResolveFromStack() instanceof YangType) { |
| 968 | if (node.getName().contentEquals( |
| 969 | ((YangType<?>) getCurrentEntityToResolveFromStack()) |
| 970 | .getDataTypeName())) { |
| 971 | return true; |
| 972 | } |
| 973 | } else if (getCurrentEntityToResolveFromStack() instanceof YangUses) { |
| 974 | if (node.getName().contentEquals( |
| 975 | ((YangUses) getCurrentEntityToResolveFromStack()).getName())) { |
| 976 | return true; |
| 977 | } |
Vidyashree Rama | deac28b | 2016-06-20 15:12:43 +0530 | [diff] [blame] | 978 | } else if (getCurrentEntityToResolveFromStack() instanceof YangIfFeature) { |
| 979 | return isFeatureDefinedInNode(node); |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 980 | } else { |
| 981 | throw new DataModelException("Data Model Exception: Entity to resolved is other than type/uses"); |
| 982 | } |
| 983 | return false; |
| 984 | } |
| 985 | |
Vidyashree Rama | deac28b | 2016-06-20 15:12:43 +0530 | [diff] [blame] | 986 | private boolean isFeatureDefinedInNode(YangNode node) throws DataModelException { |
| 987 | YangNodeIdentifier ifFeature = ((YangIfFeature) getCurrentEntityToResolveFromStack()).getName(); |
| 988 | List<YangFeature> featureList = ((YangFeatureHolder) node).getFeatureList(); |
| 989 | if (featureList != null && !featureList.isEmpty()) { |
| 990 | Iterator<YangFeature> iterator = featureList.iterator(); |
| 991 | while (iterator.hasNext()) { |
| 992 | YangFeature feature = iterator.next(); |
| 993 | if (ifFeature.getName().equals(feature.getName())) { |
| 994 | ((YangIfFeature) getCurrentEntityToResolveFromStack()).setReferredFeature(feature); |
| 995 | ((YangIfFeature) getCurrentEntityToResolveFromStack()).setReferredFeatureHolder(node); |
| 996 | return true; |
| 997 | } |
| 998 | } |
| 999 | } |
| 1000 | return false; |
| 1001 | } |
| 1002 | |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 1003 | /** |
| 1004 | * Adds reference of grouping/typedef in uses/type. |
| 1005 | * |
| 1006 | * @param referredNode grouping/typedef node being referred |
| 1007 | * @param linkedStatus linked status if success. |
| 1008 | * @throws DataModelException a violation of data model rules |
| 1009 | */ |
| 1010 | private void addReferredEntityLink(YangNode referredNode, ResolvableStatus linkedStatus) |
| 1011 | throws DataModelException { |
| 1012 | if (getCurrentEntityToResolveFromStack() instanceof YangType) { |
Bharat saraswal | 96dfef0 | 2016-06-16 00:29:12 +0530 | [diff] [blame] | 1013 | YangDerivedInfo<?> derivedInfo = (YangDerivedInfo<?>) ((YangType<?>) getCurrentEntityToResolveFromStack()) |
| 1014 | .getDataTypeExtendedInfo(); |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 1015 | derivedInfo.setReferredTypeDef((YangTypeDef) referredNode); |
| 1016 | } else if (getCurrentEntityToResolveFromStack() instanceof YangUses) { |
| 1017 | ((YangUses) getCurrentEntityToResolveFromStack()) |
| 1018 | .setRefGroup((YangGrouping) referredNode); |
Vidyashree Rama | deac28b | 2016-06-20 15:12:43 +0530 | [diff] [blame] | 1019 | } else if (getCurrentEntityToResolveFromStack() instanceof YangIfFeature) { |
| 1020 | // do nothing , referred node is already set |
janani b | e18b534 | 2016-07-13 21:06:41 +0530 | [diff] [blame^] | 1021 | } else if (getCurrentEntityToResolveFromStack() instanceof YangLeafRef) { |
| 1022 | // do nothing , referred node is already set |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 1023 | } else { |
| 1024 | throw new DataModelException("Data Model Exception: Entity to resolved is other than type/uses"); |
| 1025 | } |
| 1026 | |
| 1027 | // Sets the resolution status in inside the type/uses. |
| 1028 | ((Resolvable) getCurrentEntityToResolveFromStack()).setResolvableStatus(linkedStatus); |
| 1029 | } |
| 1030 | |
| 1031 | /** |
| 1032 | * Checks if type/grouping has further reference to typedef/ unresolved |
| 1033 | * uses. Add it to the partial resolve stack and return the status of |
| 1034 | * addition to stack. |
| 1035 | * |
| 1036 | * @param referredNode grouping/typedef node |
| 1037 | * @throws DataModelException a violation of data model rules |
| 1038 | */ |
| 1039 | private void addUnresolvedRecursiveReferenceToStack(YangNode referredNode) |
| 1040 | throws DataModelException { |
| 1041 | if (getCurrentEntityToResolveFromStack() instanceof YangType) { |
| 1042 | /* |
| 1043 | * Checks if typedef type is derived |
| 1044 | */ |
Bharat saraswal | 96dfef0 | 2016-06-16 00:29:12 +0530 | [diff] [blame] | 1045 | if (((YangTypeDef) referredNode).getTypeDefBaseType().getDataType() == YangDataTypes.DERIVED) { |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 1046 | |
Bharat saraswal | 96dfef0 | 2016-06-16 00:29:12 +0530 | [diff] [blame] | 1047 | YangEntityToResolveInfoImpl<YangType<?>> unResolvedEntityInfo = new YangEntityToResolveInfoImpl<>(); |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 1048 | unResolvedEntityInfo.setEntityToResolve(((YangTypeDef) referredNode) |
| 1049 | .getTypeDefBaseType()); |
| 1050 | unResolvedEntityInfo.setHolderOfEntityToResolve(referredNode); |
Gaurav Agrawal | 95b416c | 2016-06-07 14:00:26 +0530 | [diff] [blame] | 1051 | addInPartialResolvedStack((YangEntityToResolveInfoImpl<T>) unResolvedEntityInfo); |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 1052 | } |
| 1053 | |
| 1054 | } else if (getCurrentEntityToResolveFromStack() instanceof YangUses) { |
| 1055 | /* |
| 1056 | * Search if the grouping has any un resolved uses child, if so |
| 1057 | * return true, else return false. |
| 1058 | */ |
| 1059 | addUnResolvedUsesToStack(referredNode); |
Vidyashree Rama | deac28b | 2016-06-20 15:12:43 +0530 | [diff] [blame] | 1060 | } else if (getCurrentEntityToResolveFromStack() instanceof YangIfFeature) { |
| 1061 | addUnResolvedIfFeatureToStack(referredNode); |
janani b | e18b534 | 2016-07-13 21:06:41 +0530 | [diff] [blame^] | 1062 | } else if (getCurrentEntityToResolveFromStack() instanceof YangLeafRef) { |
| 1063 | // do nothing , referred node is already set |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 1064 | throw new DataModelException("Data Model Exception: Entity to resolved is other than type/uses"); |
| 1065 | } |
| 1066 | } |
| 1067 | |
| 1068 | /** |
| 1069 | * Returns if there is any unresolved uses in grouping. |
| 1070 | * |
| 1071 | * @param node grouping/typedef node |
| 1072 | */ |
| 1073 | private void addUnResolvedUsesToStack(YangNode node) { |
| 1074 | |
| 1075 | /** |
| 1076 | * Search the grouping node's children for presence of uses node. |
| 1077 | */ |
| 1078 | YangNode curNode = node.getChild(); |
| 1079 | while (curNode != null) { |
| 1080 | if (curNode instanceof YangUses) { |
Gaurav Agrawal | 95b416c | 2016-06-07 14:00:26 +0530 | [diff] [blame] | 1081 | YangEntityToResolveInfoImpl<YangUses> unResolvedEntityInfo = new YangEntityToResolveInfoImpl<>(); |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 1082 | unResolvedEntityInfo.setEntityToResolve((YangUses) curNode); |
| 1083 | unResolvedEntityInfo.setHolderOfEntityToResolve(node); |
Gaurav Agrawal | 95b416c | 2016-06-07 14:00:26 +0530 | [diff] [blame] | 1084 | addInPartialResolvedStack((YangEntityToResolveInfoImpl<T>) unResolvedEntityInfo); |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 1085 | |
| 1086 | } |
| 1087 | curNode = curNode.getNextSibling(); |
| 1088 | } |
| 1089 | } |
| 1090 | |
| 1091 | /** |
Vidyashree Rama | deac28b | 2016-06-20 15:12:43 +0530 | [diff] [blame] | 1092 | * Returns if there is any unresolved if-feature in feature. |
| 1093 | * |
| 1094 | * @param node module/submodule node |
| 1095 | */ |
| 1096 | private void addUnResolvedIfFeatureToStack(YangNode node) { |
| 1097 | YangFeature refFeature = ((YangIfFeature) getCurrentEntityToResolveFromStack()).getReferredFeature(); |
| 1098 | List<YangIfFeature> ifFeatureList = refFeature.getIfFeatureList(); |
| 1099 | if (ifFeatureList != null && !ifFeatureList.isEmpty()) { |
| 1100 | Iterator<YangIfFeature> ifFeatureIterator = ifFeatureList.iterator(); |
| 1101 | while (ifFeatureIterator.hasNext()) { |
| 1102 | YangIfFeature ifFeature = ifFeatureIterator.next(); |
| 1103 | YangEntityToResolveInfo<YangIfFeature> unResolvedEntityInfo = new YangEntityToResolveInfoImpl<>(); |
| 1104 | unResolvedEntityInfo.setEntityToResolve(ifFeature); |
| 1105 | unResolvedEntityInfo.setHolderOfEntityToResolve(node); |
| 1106 | addInPartialResolvedStack((YangEntityToResolveInfoImpl<T>) unResolvedEntityInfo); |
| 1107 | } |
| 1108 | } |
| 1109 | } |
| 1110 | |
| 1111 | /** |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 1112 | * Returns stack of YANG type with partially resolved YANG construct |
| 1113 | * hierarchy. |
| 1114 | * |
| 1115 | * @return partial resolved YANG construct stack |
| 1116 | */ |
Gaurav Agrawal | 95b416c | 2016-06-07 14:00:26 +0530 | [diff] [blame] | 1117 | private Stack<YangEntityToResolveInfoImpl<T>> getPartialResolvedStack() { |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 1118 | return partialResolvedStack; |
| 1119 | } |
| 1120 | |
| 1121 | /** |
| 1122 | * Sets stack of YANG type with partially resolved YANG construct hierarchy. |
| 1123 | * |
| 1124 | * @param partialResolvedStack partial resolved YANG construct stack |
| 1125 | */ |
Gaurav Agrawal | 95b416c | 2016-06-07 14:00:26 +0530 | [diff] [blame] | 1126 | private void setPartialResolvedStack(Stack<YangEntityToResolveInfoImpl<T>> partialResolvedStack) { |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 1127 | this.partialResolvedStack = partialResolvedStack; |
| 1128 | } |
| 1129 | |
| 1130 | /** |
| 1131 | * Sets stack of YANG type with partially resolved YANG construct hierarchy. |
| 1132 | * |
| 1133 | * @param partialResolvedInfo partial resolved YANG construct stack |
| 1134 | */ |
Gaurav Agrawal | 95b416c | 2016-06-07 14:00:26 +0530 | [diff] [blame] | 1135 | private void addInPartialResolvedStack(YangEntityToResolveInfoImpl<T> partialResolvedInfo) { |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 1136 | getPartialResolvedStack().push(partialResolvedInfo); |
| 1137 | } |
| 1138 | |
| 1139 | /** |
| 1140 | * Retrieves the next entity in the stack that needs to be resolved. It is |
| 1141 | * assumed that the caller ensures that the stack is not empty. |
| 1142 | * |
| 1143 | * @return next entity in the stack that needs to be resolved |
| 1144 | */ |
| 1145 | private T getCurrentEntityToResolveFromStack() { |
| 1146 | return getPartialResolvedStack().peek().getEntityToResolve(); |
| 1147 | } |
| 1148 | |
Gaurav Agrawal | 95b416c | 2016-06-07 14:00:26 +0530 | [diff] [blame] | 1149 | @Override |
| 1150 | public YangEntityToResolveInfoImpl<T> getEntityToResolveInfo() { |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 1151 | return entityToResolveInfo; |
| 1152 | } |
| 1153 | |
| 1154 | /** |
| 1155 | * Sets information about the entity that needs to be resolved. |
| 1156 | * |
| 1157 | * @param entityToResolveInfo information about the entity that needs to be |
| 1158 | * resolved |
| 1159 | */ |
Gaurav Agrawal | 95b416c | 2016-06-07 14:00:26 +0530 | [diff] [blame] | 1160 | private void setEntityToResolveInfo(YangEntityToResolveInfoImpl<T> entityToResolveInfo) { |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 1161 | this.entityToResolveInfo = entityToResolveInfo; |
| 1162 | } |
| 1163 | |
| 1164 | @Override |
| 1165 | public int getLineNumber() { |
| 1166 | return lineNumber; |
| 1167 | } |
| 1168 | |
| 1169 | @Override |
| 1170 | public int getCharPosition() { |
| 1171 | return charPosition; |
| 1172 | } |
| 1173 | |
| 1174 | @Override |
| 1175 | public void setLineNumber(int lineNumber) { |
| 1176 | this.lineNumber = lineNumber; |
| 1177 | } |
| 1178 | |
| 1179 | @Override |
| 1180 | public void setCharPosition(int charPositionInLine) { |
| 1181 | this.charPosition = charPositionInLine; |
| 1182 | } |
| 1183 | |
| 1184 | /** |
| 1185 | * Returns current module/sub-module reference, will be used in inter-file/ |
| 1186 | * inter-jar scenario to get the import/include list. |
| 1187 | * |
| 1188 | * @return current module/sub-module reference |
| 1189 | */ |
| 1190 | private YangReferenceResolver getCurReferenceResolver() { |
| 1191 | return curReferenceResolver; |
| 1192 | } |
| 1193 | |
| 1194 | /** |
| 1195 | * Sets current module/sub-module reference, will be used in inter-file/ |
| 1196 | * inter-jar scenario to get the import/include list. |
| 1197 | * |
| 1198 | * @param curReferenceResolver current module/sub-module reference |
| 1199 | */ |
| 1200 | private void setCurReferenceResolver(YangReferenceResolver curReferenceResolver) { |
| 1201 | this.curReferenceResolver = curReferenceResolver; |
| 1202 | } |
| 1203 | |
Gaurav Agrawal | 95b416c | 2016-06-07 14:00:26 +0530 | [diff] [blame] | 1204 | @Override |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 1205 | public void linkInterFile(YangReferenceResolver dataModelRootNode) |
| 1206 | throws DataModelException { |
| 1207 | |
| 1208 | setCurReferenceResolver(dataModelRootNode); |
| 1209 | |
| 1210 | // Current node to resolve, it can be a YANG type or YANG uses. |
| 1211 | T entityToResolve = getEntityToResolveInfo().getEntityToResolve(); |
| 1212 | |
| 1213 | // Check if linking is already done |
| 1214 | if (entityToResolve instanceof Resolvable) { |
| 1215 | Resolvable resolvable = (Resolvable) entityToResolve; |
| 1216 | if (resolvable.getResolvableStatus() == RESOLVED) { |
| 1217 | return; |
| 1218 | } |
| 1219 | } else { |
| 1220 | throw new DataModelException("Data Model Exception: Entity to resolved is not Resolvable"); |
| 1221 | } |
| 1222 | |
| 1223 | // Push the initial entity to resolve in stack. |
| 1224 | addInPartialResolvedStack(getEntityToResolveInfo()); |
| 1225 | |
| 1226 | // Inter file linking and resolution. |
| 1227 | linkInterFileAndResolve(); |
janani b | e18b534 | 2016-07-13 21:06:41 +0530 | [diff] [blame^] | 1228 | |
| 1229 | // Resolve the derived types having leafref. |
| 1230 | addDerivedRefTypeToRefTypeResolutionList(); |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 1231 | } |
| 1232 | |
| 1233 | /** |
| 1234 | * Returns the referenced prefix of entity under resolution. |
| 1235 | * |
| 1236 | * @return referenced prefix of entity under resolution |
| 1237 | * @throws DataModelException a violation in data model rule |
| 1238 | */ |
VinodKumarS-Huawei | 2ee9e7e | 2016-06-01 14:30:22 +0530 | [diff] [blame] | 1239 | private String getRefPrefix() |
| 1240 | throws DataModelException { |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 1241 | String refPrefix; |
| 1242 | if (getCurrentEntityToResolveFromStack() instanceof YangType) { |
| 1243 | refPrefix = ((YangType<?>) getCurrentEntityToResolveFromStack()).getPrefix(); |
| 1244 | } else if (getCurrentEntityToResolveFromStack() instanceof YangUses) { |
| 1245 | refPrefix = ((YangUses) getCurrentEntityToResolveFromStack()).getPrefix(); |
Vidyashree Rama | deac28b | 2016-06-20 15:12:43 +0530 | [diff] [blame] | 1246 | } else if (getCurrentEntityToResolveFromStack() instanceof YangIfFeature) { |
| 1247 | refPrefix = ((YangIfFeature) getCurrentEntityToResolveFromStack()).getPrefix(); |
janani b | e18b534 | 2016-07-13 21:06:41 +0530 | [diff] [blame^] | 1248 | } else if (getCurrentEntityToResolveFromStack() instanceof YangLeafRef) { |
| 1249 | refPrefix = refPrefixForLeafRef(); |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 1250 | } else { |
| 1251 | throw new DataModelException("Data Model Exception: Entity to resolved is other than type/uses"); |
| 1252 | } |
| 1253 | return refPrefix; |
| 1254 | } |
| 1255 | |
| 1256 | /** |
janani b | e18b534 | 2016-07-13 21:06:41 +0530 | [diff] [blame^] | 1257 | * Returns the referenced prefix for leafref under resolution. |
| 1258 | * |
| 1259 | * @return referenced prefix of leafref under resolution |
| 1260 | */ |
| 1261 | private String refPrefixForLeafRef() { |
| 1262 | |
| 1263 | String refPrefix; |
| 1264 | if (((YangLeafRef) getCurrentEntityToResolveFromStack()).getPathType() == YangPathArgType.ABSOLUTE_PATH) { |
| 1265 | List<YangAtomicPath> theList = ((YangLeafRef) getCurrentEntityToResolveFromStack()).getAtomicPath(); |
| 1266 | YangAtomicPath absPath = theList.iterator().next(); |
| 1267 | refPrefix = absPath.getNodeIdentifier().getPrefix(); |
| 1268 | } else { |
| 1269 | YangRelativePath relativePath = ((YangLeafRef) getCurrentEntityToResolveFromStack()).getRelativePath(); |
| 1270 | List<YangAtomicPath> theList = relativePath.getAtomicPathList(); |
| 1271 | YangAtomicPath absPath = theList.iterator().next(); |
| 1272 | refPrefix = absPath.getNodeIdentifier().getPrefix(); |
| 1273 | } |
| 1274 | return refPrefix; |
| 1275 | } |
| 1276 | |
| 1277 | /** |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 1278 | * Performs inter file linking and resolution. |
| 1279 | * |
| 1280 | * @throws DataModelException a violation in data model rule |
| 1281 | */ |
| 1282 | private void linkInterFileAndResolve() |
| 1283 | throws DataModelException { |
| 1284 | |
| 1285 | while (getPartialResolvedStack().size() != 0) { |
| 1286 | |
| 1287 | // Current node to resolve, it can be a YANG type or YANG uses. |
| 1288 | T entityToResolve = getCurrentEntityToResolveFromStack(); |
| 1289 | // Check if linking is already done |
| 1290 | if (entityToResolve instanceof Resolvable) { |
| 1291 | |
| 1292 | Resolvable resolvable = (Resolvable) entityToResolve; |
| 1293 | switch (resolvable.getResolvableStatus()) { |
Vidyashree Rama | deac28b | 2016-06-20 15:12:43 +0530 | [diff] [blame] | 1294 | case RESOLVED: { |
| 1295 | /* |
| 1296 | * If the entity is already resolved in the stack, then pop |
| 1297 | * it and continue with the remaining stack elements to |
| 1298 | * resolve |
| 1299 | */ |
| 1300 | getPartialResolvedStack().pop(); |
| 1301 | break; |
| 1302 | } |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 1303 | |
Vidyashree Rama | deac28b | 2016-06-20 15:12:43 +0530 | [diff] [blame] | 1304 | case INTER_FILE_LINKED: { |
| 1305 | /* |
| 1306 | * If the top of the stack is already linked then resolve |
| 1307 | * the references and pop the entity and continue with |
| 1308 | * remaining stack elements to resolve |
| 1309 | */ |
| 1310 | resolveTopOfStack(INTER_FILE); |
| 1311 | getPartialResolvedStack().pop(); |
| 1312 | break; |
| 1313 | } |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 1314 | |
Vidyashree Rama | deac28b | 2016-06-20 15:12:43 +0530 | [diff] [blame] | 1315 | case INTRA_FILE_RESOLVED: { |
| 1316 | /* |
| 1317 | * If the top of the stack is intra file resolved then check |
| 1318 | * if top of stack is linked, if not link it using |
| 1319 | * import/include list and push the linked referred entity |
| 1320 | * to the stack, otherwise only push it to the stack. |
| 1321 | */ |
| 1322 | linkInterFileTopOfStackRefUpdateStack(); |
| 1323 | break; |
| 1324 | } |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 1325 | |
Vidyashree Rama | deac28b | 2016-06-20 15:12:43 +0530 | [diff] [blame] | 1326 | case UNDEFINED: { |
| 1327 | /* |
| 1328 | * In case of if-feature resolution, if referred "feature" is not |
| 1329 | * defined then the resolvable status will be undefined. |
| 1330 | */ |
| 1331 | getPartialResolvedStack().pop(); |
| 1332 | break; |
| 1333 | } |
| 1334 | |
| 1335 | default: { |
| 1336 | throw new DataModelException("Data Model Exception: Unsupported, linker state"); |
| 1337 | } |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 1338 | |
| 1339 | } |
| 1340 | |
| 1341 | } else { |
| 1342 | throw new DataModelException("Data Model Exception: Entity to resolved is other than type/uses"); |
| 1343 | } |
| 1344 | |
| 1345 | } |
| 1346 | |
| 1347 | } |
| 1348 | |
| 1349 | /** |
| 1350 | * Links the top of the stack if it's inter-file and update stack. |
| 1351 | * |
| 1352 | * @throws DataModelException data model error |
| 1353 | */ |
VinodKumarS-Huawei | 2ee9e7e | 2016-06-01 14:30:22 +0530 | [diff] [blame] | 1354 | private void linkInterFileTopOfStackRefUpdateStack() |
| 1355 | throws DataModelException { |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 1356 | |
| 1357 | /* |
| 1358 | * Obtain the referred node of top of stack entity under resolution |
| 1359 | */ |
| 1360 | T referredNode = getRefNode(); |
| 1361 | |
| 1362 | /* |
| 1363 | * Check for null for scenario when it's not linked and inter-file |
| 1364 | * linking is required. |
| 1365 | */ |
| 1366 | if (referredNode == null) { |
| 1367 | |
| 1368 | /* |
Bharat saraswal | 96dfef0 | 2016-06-16 00:29:12 +0530 | [diff] [blame] | 1369 | * Check if prefix is null or not, to identify whether to search in |
| 1370 | * import list or include list. |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 1371 | */ |
Bharat saraswal | cad0e65 | 2016-05-26 23:48:38 +0530 | [diff] [blame] | 1372 | if (getRefPrefix() != null && !getRefPrefix().contentEquals(getCurReferenceResolver().getPrefix())) { |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 1373 | if (resolveWithImport()) { |
| 1374 | return; |
| 1375 | } |
| 1376 | } else { |
| 1377 | if (resolveWithInclude()) { |
| 1378 | return; |
| 1379 | } |
| 1380 | } |
Vidyashree Rama | deac28b | 2016-06-20 15:12:43 +0530 | [diff] [blame] | 1381 | |
| 1382 | if (getCurrentEntityToResolveFromStack() instanceof YangIfFeature) { |
| 1383 | ((YangIfFeature) getCurrentEntityToResolveFromStack()).setResolvableStatus(UNDEFINED); |
| 1384 | return; |
| 1385 | } |
janani b | e18b534 | 2016-07-13 21:06:41 +0530 | [diff] [blame^] | 1386 | // If current entity is still not resolved, then |
| 1387 | // linking/resolution has failed. |
| 1388 | String errorInfo; |
| 1389 | if (getCurrentEntityToResolveFromStack() instanceof YangType) { |
| 1390 | errorInfo = TYPEDEF_LINKER_ERROR; |
| 1391 | } else if (getCurrentEntityToResolveFromStack() instanceof YangUses) { |
| 1392 | errorInfo = GROUPING_LINKER_ERROR; |
| 1393 | } else if (getCurrentEntityToResolveFromStack() instanceof YangIfFeature) { |
| 1394 | errorInfo = FEATURE_LINKER_ERROR; |
| 1395 | } else { |
| 1396 | errorInfo = LEAFREF_LINKER_ERROR; |
| 1397 | } |
| 1398 | DataModelException dataModelException = new DataModelException(errorInfo); |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 1399 | dataModelException.setLine(getLineNumber()); |
| 1400 | dataModelException.setCharPosition(getCharPosition()); |
| 1401 | throw dataModelException; |
| 1402 | } else { |
| 1403 | /* |
| 1404 | * If referred node is already linked, then just change the status |
| 1405 | * and push to the stack. |
| 1406 | */ |
janani b | e18b534 | 2016-07-13 21:06:41 +0530 | [diff] [blame^] | 1407 | if (getCurrentEntityToResolveFromStack() instanceof YangLeafRef) { |
| 1408 | ((Resolvable) getCurrentEntityToResolveFromStack()).setResolvableStatus(INTER_FILE_LINKED); |
| 1409 | if (referredNode instanceof YangLeaf) { |
| 1410 | YangLeaf yangleaf = (YangLeaf) referredNode; |
| 1411 | addUnResolvedLeafRefTypeToStack((T) yangleaf, (YangNode) yangleaf.getContainedIn()); |
| 1412 | } else if (referredNode instanceof YangLeafList) { |
| 1413 | YangLeafList yangLeafList = (YangLeafList) referredNode; |
| 1414 | addUnResolvedLeafRefTypeToStack((T) yangLeafList, (YangNode) yangLeafList.getContainedIn()); |
| 1415 | } |
| 1416 | } else { |
| 1417 | ((Resolvable) getCurrentEntityToResolveFromStack()).setResolvableStatus(INTER_FILE_LINKED); |
| 1418 | addUnresolvedRecursiveReferenceToStack((YangNode) referredNode); |
| 1419 | } |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 1420 | } |
| 1421 | } |
| 1422 | |
| 1423 | /** |
| 1424 | * Finds and resolves with include list. |
| 1425 | * |
| 1426 | * @return true if resolved, false otherwise |
| 1427 | * @throws DataModelException a violation in data model rule |
| 1428 | */ |
VinodKumarS-Huawei | 2ee9e7e | 2016-06-01 14:30:22 +0530 | [diff] [blame] | 1429 | private boolean resolveWithInclude() |
| 1430 | throws DataModelException { |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 1431 | /* |
| 1432 | * Run through all the nodes in include list and search for referred |
| 1433 | * typedef/grouping at the root level. |
| 1434 | */ |
| 1435 | for (YangInclude yangInclude : getCurReferenceResolver().getIncludeList()) { |
| 1436 | YangNode linkedNode = null; |
| 1437 | if (getCurrentEntityToResolveFromStack() instanceof YangType) { |
| 1438 | linkedNode = findRefTypedef(yangInclude.getIncludedNode()); |
| 1439 | } else if (getCurrentEntityToResolveFromStack() instanceof YangUses) { |
| 1440 | linkedNode = findRefGrouping(yangInclude.getIncludedNode()); |
Vidyashree Rama | deac28b | 2016-06-20 15:12:43 +0530 | [diff] [blame] | 1441 | } else if (getCurrentEntityToResolveFromStack() instanceof YangIfFeature) { |
| 1442 | linkedNode = findRefFeature(yangInclude.getIncludedNode()); |
janani b | e18b534 | 2016-07-13 21:06:41 +0530 | [diff] [blame^] | 1443 | } else if (getCurrentEntityToResolveFromStack() instanceof YangLeafRef) { |
| 1444 | boolean referredNode = findRefLeaf(yangInclude.getIncludedNode()); |
| 1445 | /* |
| 1446 | * Update the current reference resolver to external |
| 1447 | * module/sub-module containing the referred typedef/grouping. |
| 1448 | */ |
| 1449 | setCurReferenceResolver((YangReferenceResolver) yangInclude.getIncludedNode()); |
| 1450 | |
| 1451 | return referredNode; |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 1452 | } |
| 1453 | if (linkedNode != null) { |
| 1454 | // Add the link to external entity. |
| 1455 | addReferredEntityLink(linkedNode, INTER_FILE_LINKED); |
| 1456 | /* |
| 1457 | * Update the current reference resolver to external |
| 1458 | * module/sub-module containing the referred typedef/grouping. |
| 1459 | */ |
| 1460 | setCurReferenceResolver((YangReferenceResolver) yangInclude.getIncludedNode()); |
| 1461 | // Add the type/uses of referred typedef/grouping to the stack. |
| 1462 | addUnresolvedRecursiveReferenceToStack(linkedNode); |
| 1463 | return true; |
| 1464 | } |
| 1465 | } |
| 1466 | // If referred node can't be found return false. |
| 1467 | return false; |
| 1468 | } |
| 1469 | |
| 1470 | /** |
| 1471 | * Finds and resolves with import list. |
| 1472 | * |
| 1473 | * @return true if resolved, false otherwise |
| 1474 | * @throws DataModelException a violation in data model rule |
| 1475 | */ |
VinodKumarS-Huawei | 2ee9e7e | 2016-06-01 14:30:22 +0530 | [diff] [blame] | 1476 | private boolean resolveWithImport() |
| 1477 | throws DataModelException { |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 1478 | /* |
| 1479 | * Run through import list to find the referred typedef/grouping. |
| 1480 | */ |
| 1481 | for (YangImport yangImport : getCurReferenceResolver().getImportList()) { |
| 1482 | /* |
| 1483 | * Match the prefix attached to entity under resolution with the |
| 1484 | * imported/included module/sub-module's prefix. If found, search |
| 1485 | * for the referred typedef/grouping at the root level. |
| 1486 | */ |
| 1487 | if (yangImport.getPrefixId().contentEquals(getRefPrefix())) { |
| 1488 | YangNode linkedNode = null; |
| 1489 | if (getCurrentEntityToResolveFromStack() instanceof YangType) { |
| 1490 | linkedNode = findRefTypedef(yangImport.getImportedNode()); |
| 1491 | } else if (getCurrentEntityToResolveFromStack() instanceof YangUses) { |
| 1492 | linkedNode = findRefGrouping(yangImport.getImportedNode()); |
Vidyashree Rama | deac28b | 2016-06-20 15:12:43 +0530 | [diff] [blame] | 1493 | } else if (getCurrentEntityToResolveFromStack() instanceof YangIfFeature) { |
| 1494 | linkedNode = findRefFeature(yangImport.getImportedNode()); |
janani b | e18b534 | 2016-07-13 21:06:41 +0530 | [diff] [blame^] | 1495 | } else if (getCurrentEntityToResolveFromStack() instanceof YangLeafRef) { |
| 1496 | boolean referredNode = findRefLeaf(yangImport.getImportedNode()); |
| 1497 | /* |
| 1498 | * Update the current reference resolver to external |
| 1499 | * module/sub-module containing the referred |
| 1500 | * typedef/grouping. |
| 1501 | */ |
| 1502 | setCurReferenceResolver((YangReferenceResolver) yangImport.getImportedNode()); |
| 1503 | |
| 1504 | return referredNode; |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 1505 | } |
| 1506 | if (linkedNode != null) { |
| 1507 | // Add the link to external entity. |
| 1508 | addReferredEntityLink(linkedNode, INTER_FILE_LINKED); |
| 1509 | /* |
| 1510 | * Update the current reference resolver to external |
Bharat saraswal | 96dfef0 | 2016-06-16 00:29:12 +0530 | [diff] [blame] | 1511 | * module/sub-module containing the referred |
| 1512 | * typedef/grouping. |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 1513 | */ |
| 1514 | setCurReferenceResolver((YangReferenceResolver) yangImport.getImportedNode()); |
Bharat saraswal | 96dfef0 | 2016-06-16 00:29:12 +0530 | [diff] [blame] | 1515 | // Add the type/uses of referred typedef/grouping to the |
| 1516 | // stack. |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 1517 | addUnresolvedRecursiveReferenceToStack(linkedNode); |
| 1518 | return true; |
| 1519 | } |
| 1520 | /* |
| 1521 | * If referred node can't be found at root level break for loop, |
| 1522 | * and return false. |
| 1523 | */ |
| 1524 | break; |
| 1525 | } |
| 1526 | } |
| 1527 | // If referred node can't be found return false. |
| 1528 | return false; |
| 1529 | } |
| 1530 | |
| 1531 | /** |
janani b | e18b534 | 2016-07-13 21:06:41 +0530 | [diff] [blame^] | 1532 | * Returns the status of referred leaf. |
| 1533 | * |
| 1534 | * @param importedNode the root node from a YANG file |
| 1535 | * @return status of the referred leaf |
| 1536 | * @throws DataModelException |
| 1537 | */ |
| 1538 | private boolean findRefLeaf(YangNode importedNode) throws DataModelException { |
| 1539 | |
| 1540 | boolean isReferredNodeFound = false; |
| 1541 | List<YangAtomicPath> absolutePathList = ((YangLeafRef) getCurrentEntityToResolveFromStack()) |
| 1542 | .getAtomicPath(); |
| 1543 | if (absolutePathList != null && !absolutePathList.isEmpty()) { |
| 1544 | Iterator<YangAtomicPath> listOfYangAtomicPath = absolutePathList.listIterator(); |
| 1545 | |
| 1546 | while (listOfYangAtomicPath.hasNext()) { |
| 1547 | YangAtomicPath absolutePath = listOfYangAtomicPath.next(); |
| 1548 | String nodeName = absolutePath.getNodeIdentifier().getName(); |
| 1549 | |
| 1550 | if (importedNode.getChild() == null) { |
| 1551 | isReferredNodeFound = isReferredLeafOrLeafListFound(importedNode, nodeName, (T) INTER_FILE_LINKED); |
| 1552 | break; |
| 1553 | } |
| 1554 | importedNode = importedNode.getChild(); |
| 1555 | |
| 1556 | YangNode nodeFound = isReferredNodeInSiblingProcessedForLeafref(importedNode, nodeName); |
| 1557 | if (nodeFound == null) { |
| 1558 | isReferredNodeFound = isReferredLeafOrLeafListFound(importedNode.getParent(), nodeName, |
| 1559 | (T) INTER_FILE_LINKED); |
| 1560 | } else { |
| 1561 | importedNode = nodeFound; |
| 1562 | } |
| 1563 | } |
| 1564 | } |
| 1565 | // TODO: Path predicates filling for inter file has to be done. |
| 1566 | return isReferredNodeFound; |
| 1567 | } |
| 1568 | |
| 1569 | /** |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 1570 | * Returns referred typedef/grouping node. |
| 1571 | * |
| 1572 | * @return referred typedef/grouping node |
| 1573 | * @throws DataModelException a violation in data model rule |
| 1574 | */ |
VinodKumarS-Huawei | 2ee9e7e | 2016-06-01 14:30:22 +0530 | [diff] [blame] | 1575 | private T getRefNode() |
| 1576 | throws DataModelException { |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 1577 | if (getCurrentEntityToResolveFromStack() instanceof YangType) { |
Bharat saraswal | 96dfef0 | 2016-06-16 00:29:12 +0530 | [diff] [blame] | 1578 | YangDerivedInfo<?> derivedInfo = (YangDerivedInfo<?>) ((YangType<?>) getCurrentEntityToResolveFromStack()) |
| 1579 | .getDataTypeExtendedInfo(); |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 1580 | return (T) derivedInfo.getReferredTypeDef(); |
| 1581 | } else if (getCurrentEntityToResolveFromStack() instanceof YangUses) { |
| 1582 | return (T) ((YangUses) getCurrentEntityToResolveFromStack()).getRefGroup(); |
Vidyashree Rama | deac28b | 2016-06-20 15:12:43 +0530 | [diff] [blame] | 1583 | } else if (getCurrentEntityToResolveFromStack() instanceof YangIfFeature) { |
| 1584 | return (T) ((YangIfFeature) getCurrentEntityToResolveFromStack()).getReferredFeatureHolder(); |
janani b | e18b534 | 2016-07-13 21:06:41 +0530 | [diff] [blame^] | 1585 | } else if (getCurrentEntityToResolveFromStack() instanceof YangLeafRef) { |
| 1586 | return (T) ((YangLeafRef) getCurrentEntityToResolveFromStack()).getReferredLeafOrLeafList(); |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 1587 | } else { |
| 1588 | throw new DataModelException("Data Model Exception: Entity to resolved is other than type/uses"); |
| 1589 | } |
| 1590 | } |
| 1591 | |
| 1592 | /** |
| 1593 | * Finds the referred grouping node at the root level of imported/included node. |
| 1594 | * |
| 1595 | * @param refNode module/sub-module node |
| 1596 | * @return referred grouping |
| 1597 | */ |
| 1598 | private YangNode findRefGrouping(YangNode refNode) { |
| 1599 | YangNode tmpNode = refNode.getChild(); |
| 1600 | while (tmpNode != null) { |
| 1601 | if (tmpNode instanceof YangGrouping) { |
| 1602 | if (tmpNode.getName() |
| 1603 | .equals(((YangUses) getCurrentEntityToResolveFromStack()).getName())) { |
| 1604 | return tmpNode; |
| 1605 | } |
| 1606 | } |
| 1607 | tmpNode = tmpNode.getNextSibling(); |
| 1608 | } |
| 1609 | return null; |
| 1610 | } |
| 1611 | |
| 1612 | /** |
Vidyashree Rama | deac28b | 2016-06-20 15:12:43 +0530 | [diff] [blame] | 1613 | * Finds the referred feature node at the root level of imported/included node. |
| 1614 | * |
| 1615 | * @param refNode module/sub-module node |
| 1616 | * @return referred feature |
| 1617 | */ |
| 1618 | private YangNode findRefFeature(YangNode refNode) { |
| 1619 | YangNodeIdentifier ifFeature = ((YangIfFeature) getCurrentEntityToResolveFromStack()).getName(); |
| 1620 | List<YangFeature> featureList = ((YangFeatureHolder) refNode).getFeatureList(); |
| 1621 | |
| 1622 | if (featureList != null && !featureList.isEmpty()) { |
| 1623 | Iterator<YangFeature> iterator = featureList.iterator(); |
| 1624 | while (iterator.hasNext()) { |
| 1625 | YangFeature feature = iterator.next(); |
| 1626 | if (ifFeature.getName().equals(feature.getName())) { |
| 1627 | ((YangIfFeature) getCurrentEntityToResolveFromStack()).setReferredFeature(feature); |
| 1628 | return refNode; |
| 1629 | } |
| 1630 | } |
| 1631 | } |
| 1632 | return null; |
| 1633 | } |
| 1634 | |
| 1635 | /** |
Gaurav Agrawal | 0d43bb5 | 2016-05-17 18:06:38 +0530 | [diff] [blame] | 1636 | * Finds the referred typedef node at the root level of imported/included node. |
| 1637 | * |
| 1638 | * @param refNode module/sub-module node |
| 1639 | * @return referred typedef |
| 1640 | */ |
| 1641 | private YangNode findRefTypedef(YangNode refNode) { |
| 1642 | YangNode tmpNode = refNode.getChild(); |
| 1643 | while (tmpNode != null) { |
| 1644 | if (tmpNode instanceof YangTypeDef) { |
| 1645 | if (tmpNode.getName() |
| 1646 | .equals(((YangType) getCurrentEntityToResolveFromStack()).getDataTypeName())) { |
| 1647 | return tmpNode; |
| 1648 | } |
| 1649 | } |
| 1650 | tmpNode = tmpNode.getNextSibling(); |
| 1651 | } |
| 1652 | return null; |
| 1653 | } |
| 1654 | } |