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