Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +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 | 039f59c | 2016-07-14 21:57:13 +0530 | [diff] [blame] | 19 | import java.util.ArrayList; |
| 20 | import java.util.HashMap; |
| 21 | import java.util.Iterator; |
| 22 | import java.util.List; |
| 23 | import java.util.Map; |
| 24 | import java.util.Stack; |
Bharat saraswal | e304c25 | 2016-08-16 20:56:20 +0530 | [diff] [blame] | 25 | |
janani b | ebb143d | 2016-07-14 19:35:22 +0530 | [diff] [blame] | 26 | import org.onosproject.yangutils.datamodel.YangAtomicPath; |
| 27 | import org.onosproject.yangutils.datamodel.YangAugment; |
| 28 | import org.onosproject.yangutils.datamodel.YangCase; |
| 29 | import org.onosproject.yangutils.datamodel.YangChoice; |
| 30 | import org.onosproject.yangutils.datamodel.YangGrouping; |
| 31 | import org.onosproject.yangutils.datamodel.YangImport; |
| 32 | import org.onosproject.yangutils.datamodel.YangInclude; |
| 33 | import org.onosproject.yangutils.datamodel.YangInput; |
| 34 | import org.onosproject.yangutils.datamodel.YangLeaf; |
| 35 | import org.onosproject.yangutils.datamodel.YangLeafList; |
| 36 | import org.onosproject.yangutils.datamodel.YangLeafRef; |
| 37 | import org.onosproject.yangutils.datamodel.YangLeavesHolder; |
| 38 | import org.onosproject.yangutils.datamodel.YangModule; |
| 39 | import org.onosproject.yangutils.datamodel.YangNode; |
| 40 | import org.onosproject.yangutils.datamodel.YangNodeIdentifier; |
| 41 | import org.onosproject.yangutils.datamodel.YangOutput; |
| 42 | import org.onosproject.yangutils.datamodel.YangSubModule; |
| 43 | import org.onosproject.yangutils.datamodel.YangTypeDef; |
| 44 | import org.onosproject.yangutils.datamodel.YangUses; |
| 45 | import org.onosproject.yangutils.linker.exceptions.LinkerException; |
| 46 | |
Bharat saraswal | af413b8 | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 47 | import static org.onosproject.yangutils.linker.impl.PrefixResolverType.INTER_TO_INTER; |
| 48 | import static org.onosproject.yangutils.linker.impl.PrefixResolverType.INTER_TO_INTRA; |
| 49 | import static org.onosproject.yangutils.linker.impl.PrefixResolverType.INTRA_TO_INTER; |
| 50 | import static org.onosproject.yangutils.linker.impl.PrefixResolverType.NO_PREFIX_CHANGE_FOR_INTER; |
| 51 | import static org.onosproject.yangutils.linker.impl.PrefixResolverType.NO_PREFIX_CHANGE_FOR_INTRA; |
janani b | ebb143d | 2016-07-14 19:35:22 +0530 | [diff] [blame] | 52 | import static org.onosproject.yangutils.utils.UtilConstants.INPUT; |
| 53 | import static org.onosproject.yangutils.utils.UtilConstants.OUTPUT; |
Bharat saraswal | af413b8 | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 54 | |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 55 | /** |
| 56 | * Represents x-path linking. |
| 57 | * |
| 58 | * @param <T> x-path linking can be done for target node or for target leaf/leaf-list |
| 59 | */ |
| 60 | public class YangXpathLinker<T> { |
| 61 | |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 62 | private List<YangAtomicPath> absPaths; |
| 63 | private YangNode rootNode; |
Bharat saraswal | af413b8 | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 64 | private Map<YangAtomicPath, PrefixResolverType> prefixResolverTypes; |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 65 | private String curPrefix; |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 66 | |
| 67 | /** |
| 68 | * Creates an instance of x-path linker. |
| 69 | */ |
| 70 | public YangXpathLinker() { |
| 71 | absPaths = new ArrayList<>(); |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 72 | } |
| 73 | |
| 74 | /** |
Bharat saraswal | af413b8 | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 75 | * Returns prefix resolver list. |
| 76 | * |
| 77 | * @return prefix resolver list |
| 78 | */ |
Bharat saraswal | 64e7e23 | 2016-07-14 23:33:55 +0530 | [diff] [blame] | 79 | private Map<YangAtomicPath, PrefixResolverType> getPrefixResolverTypes() { |
Bharat saraswal | af413b8 | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 80 | return prefixResolverTypes; |
| 81 | } |
| 82 | |
| 83 | /** |
| 84 | * Sets prefix resolver list. |
| 85 | * |
| 86 | * @param prefixResolverTypes prefix resolver list. |
| 87 | */ |
Bharat saraswal | 64e7e23 | 2016-07-14 23:33:55 +0530 | [diff] [blame] | 88 | private void setPrefixResolverTypes(Map<YangAtomicPath, PrefixResolverType> prefixResolverTypes) { |
Bharat saraswal | af413b8 | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 89 | this.prefixResolverTypes = prefixResolverTypes; |
| 90 | } |
| 91 | |
| 92 | /** |
| 93 | * Adds to the prefix resolver type map. |
| 94 | * |
| 95 | * @param type resolver type |
| 96 | * @param path absolute path |
| 97 | */ |
| 98 | private void addToPrefixResolverList(PrefixResolverType type, YangAtomicPath path) { |
| 99 | getPrefixResolverTypes().put(path, type); |
| 100 | } |
| 101 | |
| 102 | /** |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 103 | * Returns list of target nodes paths. |
| 104 | * |
| 105 | * @return target nodes paths |
| 106 | */ |
| 107 | private List<YangAtomicPath> getAbsPaths() { |
| 108 | return absPaths; |
| 109 | } |
| 110 | |
| 111 | /** |
| 112 | * Sets target nodes paths. |
| 113 | * |
| 114 | * @param absPaths target nodes paths |
| 115 | */ |
| 116 | private void setAbsPaths(List<YangAtomicPath> absPaths) { |
| 117 | this.absPaths = absPaths; |
| 118 | } |
| 119 | |
| 120 | /** |
janani b | ade77ae | 2016-08-17 16:33:07 +0530 | [diff] [blame] | 121 | * Adds target nodes paths. |
| 122 | * |
| 123 | * @param absPaths target nodes paths |
| 124 | */ |
| 125 | private void addAbsPaths(YangAtomicPath absPaths) { |
| 126 | getAbsPaths().add(absPaths); |
| 127 | } |
| 128 | |
| 129 | /** |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 130 | * Returns current prefix. |
| 131 | * |
| 132 | * @return current prefix |
| 133 | */ |
| 134 | private String getCurPrefix() { |
| 135 | return curPrefix; |
| 136 | } |
| 137 | |
| 138 | /** |
| 139 | * Sets current prefix. |
| 140 | * |
| 141 | * @param curPrefix current prefix |
| 142 | */ |
| 143 | private void setCurPrefix(String curPrefix) { |
| 144 | this.curPrefix = curPrefix; |
| 145 | } |
| 146 | |
| 147 | /** |
| 148 | * Return root node. |
| 149 | * |
| 150 | * @return root Node |
| 151 | */ |
| 152 | private YangNode getRootNode() { |
| 153 | return rootNode; |
| 154 | } |
| 155 | |
| 156 | /** |
| 157 | * Sets root node. |
| 158 | * |
| 159 | * @param rootNode root node |
| 160 | */ |
| 161 | private void setRootNode(YangNode rootNode) { |
| 162 | this.rootNode = rootNode; |
| 163 | } |
| 164 | |
| 165 | /** |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 166 | * Adds node to resolved nodes. |
| 167 | * |
| 168 | * @param path absolute path |
| 169 | * @param node resolved node |
| 170 | */ |
| 171 | private void addToResolvedNodes(YangAtomicPath path, YangNode node) { |
Bharat saraswal | 039f59c | 2016-07-14 21:57:13 +0530 | [diff] [blame] | 172 | path.setResolvedNode(node); |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 173 | } |
| 174 | |
| 175 | /** |
| 176 | * Returns list of augment nodes. |
| 177 | * |
| 178 | * @param node root node |
| 179 | * @return list of augment nodes |
| 180 | */ |
| 181 | public List<YangAugment> getListOfYangAugment(YangNode node) { |
| 182 | node = node.getChild(); |
| 183 | List<YangAugment> augments = new ArrayList<>(); |
| 184 | while (node != null) { |
| 185 | if (node instanceof YangAugment) { |
| 186 | augments.add((YangAugment) node); |
| 187 | } |
| 188 | node = node.getNextSibling(); |
| 189 | } |
| 190 | return augments; |
| 191 | } |
| 192 | |
| 193 | /** |
| 194 | * Process absolute node path for target leaf. |
| 195 | * |
janani b | ebb143d | 2016-07-14 19:35:22 +0530 | [diff] [blame] | 196 | * @param atomicPaths atomic path node list |
Bharat saraswal | e304c25 | 2016-08-16 20:56:20 +0530 | [diff] [blame] | 197 | * @param root root node |
| 198 | * @param leafref instance of YANG leafref |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 199 | * @return linked target node |
| 200 | */ |
Bharat saraswal | 64e7e23 | 2016-07-14 23:33:55 +0530 | [diff] [blame] | 201 | T processLeafRefXpathLinking(List<YangAtomicPath> atomicPaths, YangNode root, YangLeafRef leafref) { |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 202 | |
Bharat saraswal | 039f59c | 2016-07-14 21:57:13 +0530 | [diff] [blame] | 203 | YangNode targetNode; |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 204 | setRootNode(root); |
Bharat saraswal | af413b8 | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 205 | setPrefixResolverTypes(new HashMap<>()); |
janani b | ebb143d | 2016-07-14 19:35:22 +0530 | [diff] [blame] | 206 | parsePrefixResolverList(atomicPaths); |
| 207 | YangAtomicPath leafRefPath = atomicPaths.get(atomicPaths.size() - 1); |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 208 | |
| 209 | // When leaf-ref path contains only one absolute path. |
janani b | ebb143d | 2016-07-14 19:35:22 +0530 | [diff] [blame] | 210 | if (atomicPaths.size() == 1) { |
| 211 | targetNode = getTargetNodewhenSizeIsOne(atomicPaths); |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 212 | } else { |
janani b | ade77ae | 2016-08-17 16:33:07 +0530 | [diff] [blame] | 213 | for (YangAtomicPath atomicPath : atomicPaths) { |
| 214 | if (atomicPath != leafRefPath) { |
| 215 | addAbsPaths(atomicPath); |
| 216 | } |
| 217 | } |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 218 | targetNode = parseData(root); |
| 219 | } |
| 220 | if (targetNode == null) { |
Bharat saraswal | af413b8 | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 221 | targetNode = searchInSubModule(root); |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 222 | } |
| 223 | |
janani b | ebb143d | 2016-07-14 19:35:22 +0530 | [diff] [blame] | 224 | // Invalid path presence in the node list is checked. |
| 225 | validateInvalidNodesInThePath(leafref); |
| 226 | |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 227 | if (targetNode != null) { |
| 228 | YangLeaf targetLeaf = searchReferredLeaf(targetNode, leafRefPath.getNodeIdentifier().getName()); |
| 229 | if (targetLeaf == null) { |
| 230 | YangLeafList targetLeafList = searchReferredLeafList(targetNode, |
| 231 | leafRefPath.getNodeIdentifier().getName()); |
| 232 | if (targetLeafList != null) { |
| 233 | return (T) targetLeafList; |
| 234 | } else { |
janani b | ebb143d | 2016-07-14 19:35:22 +0530 | [diff] [blame] | 235 | LinkerException linkerException = new LinkerException("YANG file error: Unable to find base " + |
| 236 | "leaf/leaf-list for given leafref path " |
| 237 | + leafref.getPath()); |
| 238 | linkerException.setCharPosition(leafref.getCharPosition()); |
| 239 | linkerException.setLine(leafref.getLineNumber()); |
| 240 | throw linkerException; |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 241 | } |
| 242 | } |
| 243 | return (T) targetLeaf; |
| 244 | } |
| 245 | return null; |
| 246 | } |
| 247 | |
| 248 | /** |
janani b | ebb143d | 2016-07-14 19:35:22 +0530 | [diff] [blame] | 249 | * Validates the nodes in the path for any invalid node. |
| 250 | * |
| 251 | * @param leafref instance of YANG leafref |
| 252 | */ |
| 253 | private void validateInvalidNodesInThePath(YangLeafRef leafref) { |
Bharat saraswal | 039f59c | 2016-07-14 21:57:13 +0530 | [diff] [blame] | 254 | for (YangAtomicPath absolutePath : (Iterable<YangAtomicPath>) leafref.getAtomicPath()) { |
| 255 | YangNode nodeInPath = absolutePath.getResolvedNode(); |
janani b | ebb143d | 2016-07-14 19:35:22 +0530 | [diff] [blame] | 256 | |
| 257 | if (nodeInPath instanceof YangGrouping || nodeInPath instanceof YangUses |
| 258 | || nodeInPath instanceof YangTypeDef || nodeInPath instanceof YangCase |
| 259 | || nodeInPath instanceof YangChoice) { |
| 260 | LinkerException linkerException = new LinkerException("YANG file error: The target node, in the " + |
| 261 | "leafref path " + leafref.getPath() + ", is invalid."); |
| 262 | linkerException.setCharPosition(leafref.getCharPosition()); |
| 263 | linkerException.setLine(leafref.getLineNumber()); |
| 264 | throw linkerException; |
| 265 | } |
| 266 | } |
| 267 | } |
| 268 | |
| 269 | /** |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 270 | * Returns target node when leaf-ref has only one absolute path in list. |
| 271 | * |
| 272 | * @param absPaths absolute paths |
| 273 | * @return target node |
| 274 | */ |
| 275 | private YangNode getTargetNodewhenSizeIsOne(List<YangAtomicPath> absPaths) { |
| 276 | if (absPaths.get(0).getNodeIdentifier().getPrefix() != null |
| 277 | && !absPaths.get(0).getNodeIdentifier().getPrefix().equals(getRootsPrefix(getRootNode()))) { |
| 278 | return getImportedNode(getRootNode(), absPaths.get(0).getNodeIdentifier()); |
| 279 | } |
| 280 | return getRootNode(); |
| 281 | |
| 282 | } |
| 283 | |
| 284 | /** |
| 285 | * Process absolute node path linking for augment. |
| 286 | * |
| 287 | * @param absPaths absolute path node list |
Bharat saraswal | af413b8 | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 288 | * @param root root node |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 289 | * @return linked target node |
| 290 | */ |
| 291 | public YangNode processAugmentXpathLinking(List<YangAtomicPath> absPaths, YangNode root) { |
| 292 | |
| 293 | setAbsPaths(absPaths); |
| 294 | setRootNode(root); |
Bharat saraswal | af413b8 | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 295 | setPrefixResolverTypes(new HashMap<>()); |
| 296 | parsePrefixResolverList(absPaths); |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 297 | |
| 298 | YangNode targetNode = parseData(root); |
| 299 | |
| 300 | if (targetNode == null) { |
Bharat saraswal | af413b8 | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 301 | targetNode = searchInSubModule(root); |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 302 | } |
| 303 | return targetNode; |
| 304 | |
| 305 | } |
| 306 | |
| 307 | /** |
| 308 | * Searches for the referred leaf in target node. |
| 309 | * |
| 310 | * @param targetNode target node |
Bharat saraswal | af413b8 | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 311 | * @param leafName leaf name |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 312 | * @return target leaf |
| 313 | */ |
| 314 | private YangLeaf searchReferredLeaf(YangNode targetNode, String leafName) { |
| 315 | if (!(targetNode instanceof YangLeavesHolder)) { |
| 316 | throw new LinkerException("Refered node " + targetNode.getName() + |
| 317 | "should be of type leaves holder "); |
| 318 | } |
| 319 | YangLeavesHolder holder = (YangLeavesHolder) targetNode; |
| 320 | List<YangLeaf> leaves = holder.getListOfLeaf(); |
janani b | ebb143d | 2016-07-14 19:35:22 +0530 | [diff] [blame] | 321 | if (leaves != null && !leaves.isEmpty()) { |
Bharat saraswal | 039f59c | 2016-07-14 21:57:13 +0530 | [diff] [blame] | 322 | for (YangLeaf leaf : leaves) { |
janani b | ebb143d | 2016-07-14 19:35:22 +0530 | [diff] [blame] | 323 | if (leaf.getName().equals(leafName)) { |
| 324 | return leaf; |
| 325 | } |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 326 | } |
| 327 | } |
| 328 | return null; |
| 329 | } |
| 330 | |
| 331 | /** |
| 332 | * Searches for the referred leaf-list in target node. |
| 333 | * |
Bharat saraswal | af413b8 | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 334 | * @param targetNode target node |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 335 | * @param leafListName leaf-list name |
| 336 | * @return target leaf-list |
| 337 | */ |
| 338 | private YangLeafList searchReferredLeafList(YangNode targetNode, String leafListName) { |
| 339 | if (!(targetNode instanceof YangLeavesHolder)) { |
| 340 | throw new LinkerException("Refered node " + targetNode.getName() + |
| 341 | "should be of type leaves holder "); |
| 342 | } |
| 343 | YangLeavesHolder holder = (YangLeavesHolder) targetNode; |
| 344 | List<YangLeafList> leavesList = holder.getListOfLeafList(); |
janani b | ebb143d | 2016-07-14 19:35:22 +0530 | [diff] [blame] | 345 | if (leavesList != null && !leavesList.isEmpty()) { |
Bharat saraswal | 039f59c | 2016-07-14 21:57:13 +0530 | [diff] [blame] | 346 | for (YangLeafList leafList : leavesList) { |
janani b | ebb143d | 2016-07-14 19:35:22 +0530 | [diff] [blame] | 347 | if (leafList.getName().equals(leafListName)) { |
| 348 | return leafList; |
| 349 | } |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 350 | } |
| 351 | } |
| 352 | return null; |
| 353 | } |
| 354 | |
| 355 | /** |
| 356 | * Process linking using for node identifier for inter/intra file. |
| 357 | * |
| 358 | * @param root root node |
| 359 | * @return linked target node |
| 360 | */ |
| 361 | private YangNode parseData(YangNode root) { |
| 362 | String rootPrefix = getRootsPrefix(root); |
| 363 | Iterator<YangAtomicPath> pathIterator = getAbsPaths().iterator(); |
| 364 | YangAtomicPath path = pathIterator.next(); |
| 365 | if (path.getNodeIdentifier().getPrefix() != null |
| 366 | && !path.getNodeIdentifier().getPrefix().equals(rootPrefix)) { |
| 367 | return parsePath(getImportedNode(root, path.getNodeIdentifier())); |
| 368 | } else { |
| 369 | return parsePath(root); |
| 370 | } |
| 371 | } |
| 372 | |
| 373 | /** |
| 374 | * Process linking of target node in root node. |
| 375 | * |
| 376 | * @param root root node |
| 377 | * @return linked target node |
| 378 | */ |
| 379 | private YangNode parsePath(YangNode root) { |
| 380 | |
| 381 | YangNode tempNode = root; |
| 382 | Stack<YangNode> linkerStack = new Stack<>(); |
| 383 | Iterator<YangAtomicPath> pathIterator = getAbsPaths().iterator(); |
| 384 | YangAtomicPath tempPath = pathIterator.next(); |
| 385 | setCurPrefix(tempPath.getNodeIdentifier().getPrefix()); |
| 386 | int index = 0; |
Bharat saraswal | af413b8 | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 387 | YangNode tempAugment; |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 388 | do { |
| 389 | |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 390 | if (tempPath.getNodeIdentifier().getPrefix() == null) { |
| 391 | tempAugment = resolveIntraFileAugment(tempPath, root); |
| 392 | } else { |
| 393 | tempAugment = resolveInterFileAugment(tempPath, root); |
| 394 | } |
| 395 | |
| 396 | if (tempAugment != null) { |
| 397 | linkerStack.push(tempNode); |
| 398 | tempNode = tempAugment; |
| 399 | } |
| 400 | |
| 401 | tempNode = searchTargetNode(tempNode, tempPath.getNodeIdentifier()); |
| 402 | if (tempNode == null && linkerStack.size() != 0) { |
| 403 | tempNode = linkerStack.peek(); |
| 404 | linkerStack.pop(); |
| 405 | tempNode = searchTargetNode(tempNode, tempPath.getNodeIdentifier()); |
| 406 | } |
| 407 | |
| 408 | if (tempNode != null) { |
| 409 | addToResolvedNodes(tempPath, tempNode); |
| 410 | } |
| 411 | |
| 412 | if (index == getAbsPaths().size() - 1) { |
| 413 | break; |
| 414 | } |
| 415 | tempPath = pathIterator.next(); |
| 416 | index++; |
| 417 | } while (validate(tempNode, index)); |
| 418 | return tempNode; |
| 419 | } |
| 420 | |
| 421 | /** |
| 422 | * Resolves intra file augment linking. |
| 423 | * |
| 424 | * @param tempPath temporary absolute path |
Bharat saraswal | af413b8 | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 425 | * @param root root node |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 426 | * @return linked target node |
| 427 | */ |
| 428 | private YangNode resolveIntraFileAugment(YangAtomicPath tempPath, YangNode root) { |
Bharat saraswal | af413b8 | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 429 | YangNode tempAugment; |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 430 | if (getCurPrefix() != tempPath.getNodeIdentifier().getPrefix()) { |
Bharat saraswal | af413b8 | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 431 | root = getIncludedNode(getRootNode(), tempPath.getNodeIdentifier().getName()); |
| 432 | if (root == null) { |
| 433 | root = getIncludedNode(getRootNode(), getAugmentNodeIdentifier(tempPath.getNodeIdentifier(), absPaths, |
| 434 | getRootNode())); |
| 435 | if (root == null) { |
| 436 | root = getRootNode(); |
| 437 | } |
| 438 | } |
| 439 | } else { |
| 440 | if (getCurPrefix() != null) { |
| 441 | root = getImportedNode(root, tempPath.getNodeIdentifier()); |
| 442 | } |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 443 | } |
| 444 | |
| 445 | setCurPrefix(tempPath.getNodeIdentifier().getPrefix()); |
| 446 | tempAugment = getAugment(tempPath.getNodeIdentifier(), root, getAbsPaths()); |
| 447 | if (tempAugment == null) { |
| 448 | tempAugment = getAugment(tempPath.getNodeIdentifier(), getRootNode(), getAbsPaths()); |
| 449 | } |
| 450 | return tempAugment; |
| 451 | } |
| 452 | |
| 453 | /** |
| 454 | * Resolves inter file augment linking. |
| 455 | * |
| 456 | * @param tempPath temporary absolute path |
Bharat saraswal | af413b8 | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 457 | * @param root root node |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 458 | * @return linked target node |
| 459 | */ |
| 460 | private YangNode resolveInterFileAugment(YangAtomicPath tempPath, YangNode root) { |
| 461 | |
Bharat saraswal | af413b8 | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 462 | YangNode tempAugment; |
| 463 | if (!tempPath.getNodeIdentifier().getPrefix().equals(getCurPrefix())) { |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 464 | setCurPrefix(tempPath.getNodeIdentifier().getPrefix()); |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 465 | root = getImportedNode(getRootNode(), tempPath.getNodeIdentifier()); |
| 466 | } |
| 467 | tempAugment = getAugment(tempPath.getNodeIdentifier(), root, getAbsPaths()); |
Bharat saraswal | af413b8 | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 468 | if (tempAugment == null) { |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 469 | return resolveInterToInterFileAugment(root); |
| 470 | } |
| 471 | return tempAugment; |
| 472 | } |
| 473 | |
| 474 | /** |
| 475 | * Resolves augment when prefix changed from inter file to inter file. |
| 476 | * it may be possible that the prefix used in imported module is different the |
| 477 | * given list of node identifiers. |
| 478 | * |
| 479 | * @param root root node |
| 480 | * @return target node |
| 481 | */ |
| 482 | private YangNode resolveInterToInterFileAugment(YangNode root) { |
| 483 | List<YangAugment> augments = getListOfYangAugment(root); |
| 484 | int index; |
| 485 | List<YangAtomicPath> absPaths = new ArrayList<>(); |
| 486 | for (YangAugment augment : augments) { |
| 487 | index = 0; |
| 488 | |
| 489 | for (YangAtomicPath path : augment.getTargetNode()) { |
| 490 | |
| 491 | if (!searchForAugmentInImportedNode(path.getNodeIdentifier(), index)) { |
| 492 | absPaths.clear(); |
| 493 | break; |
| 494 | } |
| 495 | absPaths.add(path); |
| 496 | index++; |
| 497 | } |
| 498 | if (!absPaths.isEmpty() && absPaths.size() == getAbsPaths().size() - 1) { |
| 499 | return augment; |
| 500 | } else { |
| 501 | absPaths.clear(); |
| 502 | } |
| 503 | } |
| 504 | return null; |
| 505 | } |
| 506 | |
| 507 | /** |
| 508 | * Searches for the augment node in imported module when prefix has changed from |
| 509 | * inter file to inter file. |
Bharat saraswal | af413b8 | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 510 | * |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 511 | * @param nodeId node id |
Bharat saraswal | af413b8 | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 512 | * @param index index |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 513 | * @return true if found |
| 514 | */ |
| 515 | private boolean searchForAugmentInImportedNode(YangNodeIdentifier nodeId, int index) { |
Bharat saraswal | e304c25 | 2016-08-16 20:56:20 +0530 | [diff] [blame] | 516 | if (index == getAbsPaths().size()) { |
| 517 | return false; |
| 518 | } |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 519 | YangNodeIdentifier tempNodeId = getAbsPaths().get(index).getNodeIdentifier(); |
| 520 | return nodeId.getName().equals(tempNodeId.getName()); |
| 521 | } |
| 522 | |
| 523 | /** |
| 524 | * Returns augment node. |
| 525 | * |
| 526 | * @param tempNodeId temporary absolute path id |
Bharat saraswal | af413b8 | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 527 | * @param root root node |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 528 | * @return linked target node |
| 529 | */ |
| 530 | private YangNode getAugment(YangNodeIdentifier tempNodeId, YangNode root, List<YangAtomicPath> absPaths) { |
Bharat saraswal | af413b8 | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 531 | String augmentName = getAugmentNodeIdentifier(tempNodeId, absPaths, root); |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 532 | if (augmentName != null) { |
| 533 | return searchAugmentNode(root, augmentName); |
| 534 | } |
| 535 | return null; |
| 536 | } |
| 537 | |
| 538 | /** |
| 539 | * Process linking using import list. |
| 540 | * |
Bharat saraswal | af413b8 | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 541 | * @param root root node |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 542 | * @param nodeId node identifier |
| 543 | * @return linked target node |
| 544 | */ |
| 545 | private YangNode getImportedNode(YangNode root, YangNodeIdentifier nodeId) { |
| 546 | |
Bharat saraswal | af413b8 | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 547 | List<YangImport> importList; |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 548 | |
| 549 | if (root instanceof YangModule) { |
| 550 | importList = ((YangModule) root).getImportList(); |
| 551 | } else { |
| 552 | importList = ((YangSubModule) root).getImportList(); |
| 553 | } |
| 554 | |
| 555 | for (YangImport imported : importList) { |
| 556 | if (imported.getPrefixId().equals(nodeId.getPrefix())) { |
| 557 | return imported.getImportedNode(); |
| 558 | } |
| 559 | } |
| 560 | |
| 561 | return root; |
| 562 | } |
| 563 | |
| 564 | /** |
Bharat saraswal | af413b8 | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 565 | * Searches in sub-module node. |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 566 | * |
| 567 | * @param root root node |
Bharat saraswal | af413b8 | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 568 | * @return target linked node |
| 569 | */ |
| 570 | private YangNode searchInSubModule(YangNode root) { |
| 571 | List<YangInclude> includeList; |
| 572 | YangNode tempNode; |
| 573 | if (root instanceof YangModule) { |
| 574 | includeList = ((YangModule) root).getIncludeList(); |
| 575 | } else { |
| 576 | includeList = ((YangSubModule) root).getIncludeList(); |
| 577 | } |
| 578 | |
| 579 | for (YangInclude included : includeList) { |
| 580 | tempNode = parseData(included.getIncludedNode()); |
| 581 | if (tempNode != null) { |
| 582 | return tempNode; |
| 583 | } |
| 584 | } |
| 585 | return null; |
| 586 | } |
| 587 | |
| 588 | /** |
| 589 | * Process linking using include list. |
| 590 | * |
| 591 | * @param root root node |
| 592 | * @param tempPathName temporary path node name |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 593 | * @return linked target node |
| 594 | */ |
Bharat saraswal | af413b8 | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 595 | private YangNode getIncludedNode(YangNode root, String tempPathName) { |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 596 | |
Bharat saraswal | af413b8 | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 597 | List<YangInclude> includeList; |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 598 | |
| 599 | if (root instanceof YangModule) { |
| 600 | includeList = ((YangModule) root).getIncludeList(); |
| 601 | } else { |
| 602 | includeList = ((YangSubModule) root).getIncludeList(); |
| 603 | } |
| 604 | |
| 605 | for (YangInclude included : includeList) { |
Bharat saraswal | af413b8 | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 606 | if (verifyChildNode(included.getIncludedNode(), tempPathName)) { |
| 607 | return included.getIncludedNode(); |
| 608 | } |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 609 | } |
| 610 | |
Bharat saraswal | af413b8 | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 611 | return null; |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 612 | } |
| 613 | |
| 614 | /** |
Bharat saraswal | af413b8 | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 615 | * Verifies for child nodes in sub module. |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 616 | * |
Bharat saraswal | af413b8 | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 617 | * @param node submodule node |
| 618 | * @param name name of child node |
| 619 | * @return true if child node found |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 620 | */ |
Bharat saraswal | af413b8 | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 621 | private boolean verifyChildNode(YangNode node, String name) { |
| 622 | node = node.getChild(); |
| 623 | while (node != null) { |
| 624 | if (node.getName().equals(name)) { |
| 625 | return true; |
| 626 | } |
| 627 | node = node.getNextSibling(); |
| 628 | } |
| 629 | return false; |
| 630 | } |
| 631 | |
| 632 | |
| 633 | /** |
| 634 | * Returns augment's node id. |
| 635 | * |
| 636 | * @param nodeId node identifier |
| 637 | * @param absPaths absolute paths |
| 638 | * @param root root node |
| 639 | * @return augment's node id |
| 640 | */ |
| 641 | private String getAugmentNodeIdentifier(YangNodeIdentifier nodeId, List<YangAtomicPath> absPaths, YangNode root) { |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 642 | |
| 643 | Iterator<YangAtomicPath> nodeIdIterator = absPaths.iterator(); |
Bharat saraswal | af413b8 | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 644 | YangAtomicPath tempNodeId; |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 645 | StringBuilder builder = new StringBuilder(); |
Bharat saraswal | af413b8 | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 646 | String id; |
| 647 | PrefixResolverType type; |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 648 | while (nodeIdIterator.hasNext()) { |
| 649 | tempNodeId = nodeIdIterator.next(); |
| 650 | if (!tempNodeId.getNodeIdentifier().equals(nodeId)) { |
Bharat saraswal | af413b8 | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 651 | type = getPrefixResolverTypes().get(tempNodeId); |
| 652 | switch (type) { |
| 653 | case INTER_TO_INTRA: |
| 654 | id = "/" + tempNodeId.getNodeIdentifier().getName(); |
| 655 | break; |
| 656 | case INTRA_TO_INTER: |
| 657 | if (!getRootsPrefix(root).equals(tempNodeId.getNodeIdentifier().getPrefix())) { |
| 658 | id = "/" + tempNodeId.getNodeIdentifier().getPrefix() + ":" + tempNodeId.getNodeIdentifier() |
| 659 | .getName(); |
| 660 | } else { |
| 661 | id = "/" + tempNodeId.getNodeIdentifier().getName(); |
| 662 | } |
| 663 | break; |
| 664 | case INTER_TO_INTER: |
| 665 | id = "/" + tempNodeId.getNodeIdentifier().getPrefix() + ":" + tempNodeId.getNodeIdentifier() |
| 666 | .getName(); |
| 667 | break; |
| 668 | case NO_PREFIX_CHANGE_FOR_INTRA: |
| 669 | id = "/" + tempNodeId.getNodeIdentifier().getName(); |
| 670 | break; |
| 671 | case NO_PREFIX_CHANGE_FOR_INTER: |
| 672 | if (!getRootsPrefix(root).equals(tempNodeId.getNodeIdentifier().getPrefix())) { |
| 673 | id = "/" + tempNodeId.getNodeIdentifier().getPrefix() + ":" + tempNodeId.getNodeIdentifier() |
| 674 | .getName(); |
| 675 | } else { |
| 676 | id = "/" + tempNodeId.getNodeIdentifier().getName(); |
| 677 | } |
| 678 | break; |
| 679 | default: |
| 680 | id = "/" + tempNodeId.getNodeIdentifier().getName(); |
| 681 | break; |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 682 | } |
Bharat saraswal | af413b8 | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 683 | builder.append(id); |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 684 | } else { |
| 685 | return builder.toString(); |
| 686 | } |
| 687 | } |
| 688 | return null; |
| 689 | } |
| 690 | |
| 691 | /** |
| 692 | * Searches augment node in root node. |
| 693 | * |
Bharat saraswal | af413b8 | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 694 | * @param node root node |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 695 | * @param tempNodeId node identifier |
| 696 | * @return target augment node |
| 697 | */ |
Bharat saraswal | af413b8 | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 698 | |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 699 | private YangNode searchAugmentNode(YangNode node, String tempNodeId) { |
| 700 | node = node.getChild(); |
| 701 | while (node != null) { |
| 702 | if (node instanceof YangAugment) { |
Bharat saraswal | af413b8 | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 703 | if (node.getName().equals(tempNodeId)) { |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 704 | return node; |
| 705 | } |
| 706 | } |
| 707 | node = node.getNextSibling(); |
| 708 | } |
| 709 | return null; |
| 710 | } |
| 711 | |
| 712 | /** |
| 713 | * Validates for target node if target node found or not. |
| 714 | * |
| 715 | * @param tempNode temporary node |
Bharat saraswal | af413b8 | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 716 | * @param index current index of list |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 717 | * @return false if target node found |
| 718 | */ |
| 719 | private boolean validate(YangNode tempNode, int index) { |
| 720 | |
| 721 | int size = getAbsPaths().size(); |
| 722 | if (tempNode != null && index != size) { |
| 723 | return true; |
Bharat saraswal | af413b8 | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 724 | } else if (tempNode != null) { |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 725 | return false; |
| 726 | // this is your target node. |
Bharat saraswal | af413b8 | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 727 | } else if (index != size) { |
| 728 | return true; |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 729 | // this could be in submodule as well. |
| 730 | } |
| 731 | return false; |
| 732 | } |
| 733 | |
| 734 | /** |
| 735 | * Searches target node in root node. |
| 736 | * |
Bharat saraswal | af413b8 | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 737 | * @param node root node |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 738 | * @param curNodeId YANG node identifier |
| 739 | * @return linked target node |
| 740 | */ |
| 741 | private YangNode searchTargetNode(YangNode node, YangNodeIdentifier curNodeId) { |
| 742 | |
| 743 | if (node != null) { |
| 744 | node = node.getChild(); |
| 745 | } |
| 746 | |
| 747 | while (node != null) { |
janani b | ebb143d | 2016-07-14 19:35:22 +0530 | [diff] [blame] | 748 | if (node instanceof YangInput) { |
| 749 | if (curNodeId.getName().equalsIgnoreCase(INPUT)) { |
| 750 | return node; |
| 751 | } |
| 752 | } else if (node instanceof YangOutput) { |
| 753 | if (curNodeId.getName().equalsIgnoreCase(OUTPUT)) { |
| 754 | return node; |
| 755 | } |
| 756 | } |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 757 | if (node.getName().equals(curNodeId.getName())) { |
| 758 | return node; |
| 759 | } |
| 760 | node = node.getNextSibling(); |
| 761 | } |
| 762 | return null; |
| 763 | } |
| 764 | |
| 765 | /** |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 766 | * Returns root prefix. |
| 767 | * |
| 768 | * @param root root node |
| 769 | * @return root prefix |
| 770 | */ |
| 771 | private String getRootsPrefix(YangNode root) { |
| 772 | if (root instanceof YangModule) { |
| 773 | return ((YangModule) root).getPrefix(); |
| 774 | } else { |
| 775 | return ((YangSubModule) root).getPrefix(); |
| 776 | } |
| 777 | } |
| 778 | |
Bharat saraswal | af413b8 | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 779 | /** |
| 780 | * Resolves prefix and provides prefix resolver list. |
| 781 | * |
| 782 | * @param absolutePaths absolute paths |
| 783 | */ |
| 784 | private void parsePrefixResolverList(List<YangAtomicPath> absolutePaths) { |
| 785 | Iterator<YangAtomicPath> pathIterator = absolutePaths.iterator(); |
| 786 | YangAtomicPath absPath; |
| 787 | String prePrefix; |
| 788 | String curPrefix = null; |
| 789 | while (pathIterator.hasNext()) { |
| 790 | prePrefix = curPrefix; |
| 791 | absPath = pathIterator.next(); |
| 792 | curPrefix = absPath.getNodeIdentifier().getPrefix(); |
| 793 | if (curPrefix != null) { |
| 794 | if (!curPrefix.equals(prePrefix)) { |
| 795 | if (prePrefix != null) { |
| 796 | addToPrefixResolverList(INTER_TO_INTER, absPath); |
| 797 | } else { |
| 798 | addToPrefixResolverList(INTRA_TO_INTER, absPath); |
| 799 | } |
| 800 | } else { |
| 801 | addToPrefixResolverList(NO_PREFIX_CHANGE_FOR_INTER, absPath); |
| 802 | } |
| 803 | } else { |
| 804 | if (prePrefix != null) { |
| 805 | addToPrefixResolverList(INTER_TO_INTRA, absPath); |
| 806 | } else { |
| 807 | addToPrefixResolverList(NO_PREFIX_CHANGE_FOR_INTRA, absPath); |
| 808 | } |
| 809 | } |
| 810 | } |
| 811 | |
| 812 | } |
| 813 | |
Bharat saraswal | d14cbe8 | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 814 | } |