Bharat saraswal | b1170bd | 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; |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 37 | import org.onosproject.yangutils.linker.exceptions.LinkerException; |
| 38 | |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame^] | 39 | import static org.onosproject.yangutils.linker.impl.PrefixResolverType.INTER_TO_INTER; |
| 40 | import static org.onosproject.yangutils.linker.impl.PrefixResolverType.INTER_TO_INTRA; |
| 41 | import static org.onosproject.yangutils.linker.impl.PrefixResolverType.INTRA_TO_INTER; |
| 42 | import static org.onosproject.yangutils.linker.impl.PrefixResolverType.NO_PREFIX_CHANGE_FOR_INTER; |
| 43 | import static org.onosproject.yangutils.linker.impl.PrefixResolverType.NO_PREFIX_CHANGE_FOR_INTRA; |
| 44 | |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 45 | /** |
| 46 | * Represents x-path linking. |
| 47 | * |
| 48 | * @param <T> x-path linking can be done for target node or for target leaf/leaf-list |
| 49 | */ |
| 50 | public class YangXpathLinker<T> { |
| 51 | |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 52 | private List<YangAtomicPath> absPaths; |
| 53 | private YangNode rootNode; |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame^] | 54 | private Map<YangAtomicPath, PrefixResolverType> prefixResolverTypes; |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 55 | private String curPrefix; |
| 56 | private Map<YangAtomicPath, YangNode> resolvedNodes; |
| 57 | |
| 58 | /** |
| 59 | * Creates an instance of x-path linker. |
| 60 | */ |
| 61 | public YangXpathLinker() { |
| 62 | absPaths = new ArrayList<>(); |
| 63 | setResolvedNodes(new HashMap<>()); |
| 64 | } |
| 65 | |
| 66 | /** |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame^] | 67 | * Returns prefix resolver list. |
| 68 | * |
| 69 | * @return prefix resolver list |
| 70 | */ |
| 71 | public Map<YangAtomicPath, PrefixResolverType> getPrefixResolverTypes() { |
| 72 | return prefixResolverTypes; |
| 73 | } |
| 74 | |
| 75 | /** |
| 76 | * Sets prefix resolver list. |
| 77 | * |
| 78 | * @param prefixResolverTypes prefix resolver list. |
| 79 | */ |
| 80 | public void setPrefixResolverTypes(Map<YangAtomicPath, PrefixResolverType> prefixResolverTypes) { |
| 81 | this.prefixResolverTypes = prefixResolverTypes; |
| 82 | } |
| 83 | |
| 84 | /** |
| 85 | * Adds to the prefix resolver type map. |
| 86 | * |
| 87 | * @param type resolver type |
| 88 | * @param path absolute path |
| 89 | */ |
| 90 | private void addToPrefixResolverList(PrefixResolverType type, YangAtomicPath path) { |
| 91 | getPrefixResolverTypes().put(path, type); |
| 92 | } |
| 93 | |
| 94 | /** |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 95 | * Returns list of target nodes paths. |
| 96 | * |
| 97 | * @return target nodes paths |
| 98 | */ |
| 99 | private List<YangAtomicPath> getAbsPaths() { |
| 100 | return absPaths; |
| 101 | } |
| 102 | |
| 103 | /** |
| 104 | * Sets target nodes paths. |
| 105 | * |
| 106 | * @param absPaths target nodes paths |
| 107 | */ |
| 108 | private void setAbsPaths(List<YangAtomicPath> absPaths) { |
| 109 | this.absPaths = absPaths; |
| 110 | } |
| 111 | |
| 112 | /** |
| 113 | * Returns current prefix. |
| 114 | * |
| 115 | * @return current prefix |
| 116 | */ |
| 117 | private String getCurPrefix() { |
| 118 | return curPrefix; |
| 119 | } |
| 120 | |
| 121 | /** |
| 122 | * Sets current prefix. |
| 123 | * |
| 124 | * @param curPrefix current prefix |
| 125 | */ |
| 126 | private void setCurPrefix(String curPrefix) { |
| 127 | this.curPrefix = curPrefix; |
| 128 | } |
| 129 | |
| 130 | /** |
| 131 | * Return root node. |
| 132 | * |
| 133 | * @return root Node |
| 134 | */ |
| 135 | private YangNode getRootNode() { |
| 136 | return rootNode; |
| 137 | } |
| 138 | |
| 139 | /** |
| 140 | * Sets root node. |
| 141 | * |
| 142 | * @param rootNode root node |
| 143 | */ |
| 144 | private void setRootNode(YangNode rootNode) { |
| 145 | this.rootNode = rootNode; |
| 146 | } |
| 147 | |
| 148 | /** |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 149 | * Returns resolved nodes. |
| 150 | * |
| 151 | * @return resolved nodes |
| 152 | */ |
| 153 | public Map<YangAtomicPath, YangNode> getResolvedNodes() { |
| 154 | return resolvedNodes; |
| 155 | } |
| 156 | |
| 157 | /** |
| 158 | * Sets resolved nodes. |
| 159 | * |
| 160 | * @param resolvedNodes resolved nodes |
| 161 | */ |
| 162 | private void setResolvedNodes(Map<YangAtomicPath, YangNode> resolvedNodes) { |
| 163 | this.resolvedNodes = resolvedNodes; |
| 164 | } |
| 165 | |
| 166 | /** |
| 167 | * Adds node to resolved nodes. |
| 168 | * |
| 169 | * @param path absolute path |
| 170 | * @param node resolved node |
| 171 | */ |
| 172 | private void addToResolvedNodes(YangAtomicPath path, YangNode node) { |
| 173 | getResolvedNodes().put(path, node); |
| 174 | } |
| 175 | |
| 176 | /** |
| 177 | * Returns list of augment nodes. |
| 178 | * |
| 179 | * @param node root node |
| 180 | * @return list of augment nodes |
| 181 | */ |
| 182 | public List<YangAugment> getListOfYangAugment(YangNode node) { |
| 183 | node = node.getChild(); |
| 184 | List<YangAugment> augments = new ArrayList<>(); |
| 185 | while (node != null) { |
| 186 | if (node instanceof YangAugment) { |
| 187 | augments.add((YangAugment) node); |
| 188 | } |
| 189 | node = node.getNextSibling(); |
| 190 | } |
| 191 | return augments; |
| 192 | } |
| 193 | |
| 194 | /** |
| 195 | * Process absolute node path for target leaf. |
| 196 | * |
| 197 | * @param absPaths absolute path node list |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame^] | 198 | * @param root root node |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 199 | * @return linked target node |
| 200 | */ |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame^] | 201 | T processLeafRefXpathLinking(List<YangAtomicPath> absPaths, YangNode root) { |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 202 | |
| 203 | YangNode targetNode = null; |
| 204 | setRootNode(root); |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame^] | 205 | setPrefixResolverTypes(new HashMap<>()); |
| 206 | parsePrefixResolverList(absPaths); |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 207 | YangAtomicPath leafRefPath = absPaths.get(absPaths.size() - 1); |
| 208 | |
| 209 | // When leaf-ref path contains only one absolute path. |
| 210 | if (absPaths.size() == 1) { |
| 211 | targetNode = getTargetNodewhenSizeIsOne(absPaths); |
| 212 | } else { |
| 213 | absPaths.remove(absPaths.size() - 1); |
| 214 | |
| 215 | setAbsPaths(absPaths); |
| 216 | targetNode = parseData(root); |
| 217 | } |
| 218 | if (targetNode == null) { |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame^] | 219 | targetNode = searchInSubModule(root); |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 220 | } |
| 221 | |
| 222 | if (targetNode != null) { |
| 223 | YangLeaf targetLeaf = searchReferredLeaf(targetNode, leafRefPath.getNodeIdentifier().getName()); |
| 224 | if (targetLeaf == null) { |
| 225 | YangLeafList targetLeafList = searchReferredLeafList(targetNode, |
| 226 | leafRefPath.getNodeIdentifier().getName()); |
| 227 | if (targetLeafList != null) { |
| 228 | return (T) targetLeafList; |
| 229 | } else { |
| 230 | throw new LinkerException( |
| 231 | "YANG file error: Unable to find base leaf/leaf-list for given leafref " |
| 232 | + leafRefPath.getNodeIdentifier().getName()); |
| 233 | } |
| 234 | } |
| 235 | return (T) targetLeaf; |
| 236 | } |
| 237 | return null; |
| 238 | } |
| 239 | |
| 240 | /** |
| 241 | * Returns target node when leaf-ref has only one absolute path in list. |
| 242 | * |
| 243 | * @param absPaths absolute paths |
| 244 | * @return target node |
| 245 | */ |
| 246 | private YangNode getTargetNodewhenSizeIsOne(List<YangAtomicPath> absPaths) { |
| 247 | if (absPaths.get(0).getNodeIdentifier().getPrefix() != null |
| 248 | && !absPaths.get(0).getNodeIdentifier().getPrefix().equals(getRootsPrefix(getRootNode()))) { |
| 249 | return getImportedNode(getRootNode(), absPaths.get(0).getNodeIdentifier()); |
| 250 | } |
| 251 | return getRootNode(); |
| 252 | |
| 253 | } |
| 254 | |
| 255 | /** |
| 256 | * Process absolute node path linking for augment. |
| 257 | * |
| 258 | * @param absPaths absolute path node list |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame^] | 259 | * @param root root node |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 260 | * @return linked target node |
| 261 | */ |
| 262 | public YangNode processAugmentXpathLinking(List<YangAtomicPath> absPaths, YangNode root) { |
| 263 | |
| 264 | setAbsPaths(absPaths); |
| 265 | setRootNode(root); |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame^] | 266 | setPrefixResolverTypes(new HashMap<>()); |
| 267 | parsePrefixResolverList(absPaths); |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 268 | |
| 269 | YangNode targetNode = parseData(root); |
| 270 | |
| 271 | if (targetNode == null) { |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame^] | 272 | targetNode = searchInSubModule(root); |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 273 | } |
| 274 | return targetNode; |
| 275 | |
| 276 | } |
| 277 | |
| 278 | /** |
| 279 | * Searches for the referred leaf in target node. |
| 280 | * |
| 281 | * @param targetNode target node |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame^] | 282 | * @param leafName leaf name |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 283 | * @return target leaf |
| 284 | */ |
| 285 | private YangLeaf searchReferredLeaf(YangNode targetNode, String leafName) { |
| 286 | if (!(targetNode instanceof YangLeavesHolder)) { |
| 287 | throw new LinkerException("Refered node " + targetNode.getName() + |
| 288 | "should be of type leaves holder "); |
| 289 | } |
| 290 | YangLeavesHolder holder = (YangLeavesHolder) targetNode; |
| 291 | List<YangLeaf> leaves = holder.getListOfLeaf(); |
| 292 | for (YangLeaf leaf : leaves) { |
| 293 | if (leaf.getName().equals(leafName)) { |
| 294 | return leaf; |
| 295 | } |
| 296 | } |
| 297 | return null; |
| 298 | } |
| 299 | |
| 300 | /** |
| 301 | * Searches for the referred leaf-list in target node. |
| 302 | * |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame^] | 303 | * @param targetNode target node |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 304 | * @param leafListName leaf-list name |
| 305 | * @return target leaf-list |
| 306 | */ |
| 307 | private YangLeafList searchReferredLeafList(YangNode targetNode, String leafListName) { |
| 308 | if (!(targetNode instanceof YangLeavesHolder)) { |
| 309 | throw new LinkerException("Refered node " + targetNode.getName() + |
| 310 | "should be of type leaves holder "); |
| 311 | } |
| 312 | YangLeavesHolder holder = (YangLeavesHolder) targetNode; |
| 313 | List<YangLeafList> leavesList = holder.getListOfLeafList(); |
| 314 | for (YangLeafList leafList : leavesList) { |
| 315 | if (leafList.getName().equals(leafListName)) { |
| 316 | return leafList; |
| 317 | } |
| 318 | } |
| 319 | return null; |
| 320 | } |
| 321 | |
| 322 | /** |
| 323 | * Process linking using for node identifier for inter/intra file. |
| 324 | * |
| 325 | * @param root root node |
| 326 | * @return linked target node |
| 327 | */ |
| 328 | private YangNode parseData(YangNode root) { |
| 329 | String rootPrefix = getRootsPrefix(root); |
| 330 | Iterator<YangAtomicPath> pathIterator = getAbsPaths().iterator(); |
| 331 | YangAtomicPath path = pathIterator.next(); |
| 332 | if (path.getNodeIdentifier().getPrefix() != null |
| 333 | && !path.getNodeIdentifier().getPrefix().equals(rootPrefix)) { |
| 334 | return parsePath(getImportedNode(root, path.getNodeIdentifier())); |
| 335 | } else { |
| 336 | return parsePath(root); |
| 337 | } |
| 338 | } |
| 339 | |
| 340 | /** |
| 341 | * Process linking of target node in root node. |
| 342 | * |
| 343 | * @param root root node |
| 344 | * @return linked target node |
| 345 | */ |
| 346 | private YangNode parsePath(YangNode root) { |
| 347 | |
| 348 | YangNode tempNode = root; |
| 349 | Stack<YangNode> linkerStack = new Stack<>(); |
| 350 | Iterator<YangAtomicPath> pathIterator = getAbsPaths().iterator(); |
| 351 | YangAtomicPath tempPath = pathIterator.next(); |
| 352 | setCurPrefix(tempPath.getNodeIdentifier().getPrefix()); |
| 353 | int index = 0; |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame^] | 354 | YangNode tempAugment; |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 355 | do { |
| 356 | |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 357 | if (tempPath.getNodeIdentifier().getPrefix() == null) { |
| 358 | tempAugment = resolveIntraFileAugment(tempPath, root); |
| 359 | } else { |
| 360 | tempAugment = resolveInterFileAugment(tempPath, root); |
| 361 | } |
| 362 | |
| 363 | if (tempAugment != null) { |
| 364 | linkerStack.push(tempNode); |
| 365 | tempNode = tempAugment; |
| 366 | } |
| 367 | |
| 368 | tempNode = searchTargetNode(tempNode, tempPath.getNodeIdentifier()); |
| 369 | if (tempNode == null && linkerStack.size() != 0) { |
| 370 | tempNode = linkerStack.peek(); |
| 371 | linkerStack.pop(); |
| 372 | tempNode = searchTargetNode(tempNode, tempPath.getNodeIdentifier()); |
| 373 | } |
| 374 | |
| 375 | if (tempNode != null) { |
| 376 | addToResolvedNodes(tempPath, tempNode); |
| 377 | } |
| 378 | |
| 379 | if (index == getAbsPaths().size() - 1) { |
| 380 | break; |
| 381 | } |
| 382 | tempPath = pathIterator.next(); |
| 383 | index++; |
| 384 | } while (validate(tempNode, index)); |
| 385 | return tempNode; |
| 386 | } |
| 387 | |
| 388 | /** |
| 389 | * Resolves intra file augment linking. |
| 390 | * |
| 391 | * @param tempPath temporary absolute path |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame^] | 392 | * @param root root node |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 393 | * @return linked target node |
| 394 | */ |
| 395 | private YangNode resolveIntraFileAugment(YangAtomicPath tempPath, YangNode root) { |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame^] | 396 | YangNode tempAugment; |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 397 | if (getCurPrefix() != tempPath.getNodeIdentifier().getPrefix()) { |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame^] | 398 | root = getIncludedNode(getRootNode(), tempPath.getNodeIdentifier().getName()); |
| 399 | if (root == null) { |
| 400 | root = getIncludedNode(getRootNode(), getAugmentNodeIdentifier(tempPath.getNodeIdentifier(), absPaths, |
| 401 | getRootNode())); |
| 402 | if (root == null) { |
| 403 | root = getRootNode(); |
| 404 | } |
| 405 | } |
| 406 | } else { |
| 407 | if (getCurPrefix() != null) { |
| 408 | root = getImportedNode(root, tempPath.getNodeIdentifier()); |
| 409 | } |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 410 | } |
| 411 | |
| 412 | setCurPrefix(tempPath.getNodeIdentifier().getPrefix()); |
| 413 | tempAugment = getAugment(tempPath.getNodeIdentifier(), root, getAbsPaths()); |
| 414 | if (tempAugment == null) { |
| 415 | tempAugment = getAugment(tempPath.getNodeIdentifier(), getRootNode(), getAbsPaths()); |
| 416 | } |
| 417 | return tempAugment; |
| 418 | } |
| 419 | |
| 420 | /** |
| 421 | * Resolves inter file augment linking. |
| 422 | * |
| 423 | * @param tempPath temporary absolute path |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame^] | 424 | * @param root root node |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 425 | * @return linked target node |
| 426 | */ |
| 427 | private YangNode resolveInterFileAugment(YangAtomicPath tempPath, YangNode root) { |
| 428 | |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame^] | 429 | YangNode tempAugment; |
| 430 | if (!tempPath.getNodeIdentifier().getPrefix().equals(getCurPrefix())) { |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 431 | setCurPrefix(tempPath.getNodeIdentifier().getPrefix()); |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 432 | root = getImportedNode(getRootNode(), tempPath.getNodeIdentifier()); |
| 433 | } |
| 434 | tempAugment = getAugment(tempPath.getNodeIdentifier(), root, getAbsPaths()); |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame^] | 435 | if (tempAugment == null) { |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 436 | return resolveInterToInterFileAugment(root); |
| 437 | } |
| 438 | return tempAugment; |
| 439 | } |
| 440 | |
| 441 | /** |
| 442 | * Resolves augment when prefix changed from inter file to inter file. |
| 443 | * it may be possible that the prefix used in imported module is different the |
| 444 | * given list of node identifiers. |
| 445 | * |
| 446 | * @param root root node |
| 447 | * @return target node |
| 448 | */ |
| 449 | private YangNode resolveInterToInterFileAugment(YangNode root) { |
| 450 | List<YangAugment> augments = getListOfYangAugment(root); |
| 451 | int index; |
| 452 | List<YangAtomicPath> absPaths = new ArrayList<>(); |
| 453 | for (YangAugment augment : augments) { |
| 454 | index = 0; |
| 455 | |
| 456 | for (YangAtomicPath path : augment.getTargetNode()) { |
| 457 | |
| 458 | if (!searchForAugmentInImportedNode(path.getNodeIdentifier(), index)) { |
| 459 | absPaths.clear(); |
| 460 | break; |
| 461 | } |
| 462 | absPaths.add(path); |
| 463 | index++; |
| 464 | } |
| 465 | if (!absPaths.isEmpty() && absPaths.size() == getAbsPaths().size() - 1) { |
| 466 | return augment; |
| 467 | } else { |
| 468 | absPaths.clear(); |
| 469 | } |
| 470 | } |
| 471 | return null; |
| 472 | } |
| 473 | |
| 474 | /** |
| 475 | * Searches for the augment node in imported module when prefix has changed from |
| 476 | * inter file to inter file. |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame^] | 477 | * |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 478 | * @param nodeId node id |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame^] | 479 | * @param index index |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 480 | * @return true if found |
| 481 | */ |
| 482 | private boolean searchForAugmentInImportedNode(YangNodeIdentifier nodeId, int index) { |
| 483 | YangNodeIdentifier tempNodeId = getAbsPaths().get(index).getNodeIdentifier(); |
| 484 | return nodeId.getName().equals(tempNodeId.getName()); |
| 485 | } |
| 486 | |
| 487 | /** |
| 488 | * Returns augment node. |
| 489 | * |
| 490 | * @param tempNodeId temporary absolute path id |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame^] | 491 | * @param root root node |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 492 | * @return linked target node |
| 493 | */ |
| 494 | private YangNode getAugment(YangNodeIdentifier tempNodeId, YangNode root, List<YangAtomicPath> absPaths) { |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame^] | 495 | String augmentName = getAugmentNodeIdentifier(tempNodeId, absPaths, root); |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 496 | if (augmentName != null) { |
| 497 | return searchAugmentNode(root, augmentName); |
| 498 | } |
| 499 | return null; |
| 500 | } |
| 501 | |
| 502 | /** |
| 503 | * Process linking using import list. |
| 504 | * |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame^] | 505 | * @param root root node |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 506 | * @param nodeId node identifier |
| 507 | * @return linked target node |
| 508 | */ |
| 509 | private YangNode getImportedNode(YangNode root, YangNodeIdentifier nodeId) { |
| 510 | |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame^] | 511 | List<YangImport> importList; |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 512 | |
| 513 | if (root instanceof YangModule) { |
| 514 | importList = ((YangModule) root).getImportList(); |
| 515 | } else { |
| 516 | importList = ((YangSubModule) root).getImportList(); |
| 517 | } |
| 518 | |
| 519 | for (YangImport imported : importList) { |
| 520 | if (imported.getPrefixId().equals(nodeId.getPrefix())) { |
| 521 | return imported.getImportedNode(); |
| 522 | } |
| 523 | } |
| 524 | |
| 525 | return root; |
| 526 | } |
| 527 | |
| 528 | /** |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame^] | 529 | * Searches in sub-module node. |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 530 | * |
| 531 | * @param root root node |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame^] | 532 | * @return target linked node |
| 533 | */ |
| 534 | private YangNode searchInSubModule(YangNode root) { |
| 535 | List<YangInclude> includeList; |
| 536 | YangNode tempNode; |
| 537 | if (root instanceof YangModule) { |
| 538 | includeList = ((YangModule) root).getIncludeList(); |
| 539 | } else { |
| 540 | includeList = ((YangSubModule) root).getIncludeList(); |
| 541 | } |
| 542 | |
| 543 | for (YangInclude included : includeList) { |
| 544 | tempNode = parseData(included.getIncludedNode()); |
| 545 | if (tempNode != null) { |
| 546 | return tempNode; |
| 547 | } |
| 548 | } |
| 549 | return null; |
| 550 | } |
| 551 | |
| 552 | /** |
| 553 | * Process linking using include list. |
| 554 | * |
| 555 | * @param root root node |
| 556 | * @param tempPathName temporary path node name |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 557 | * @return linked target node |
| 558 | */ |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame^] | 559 | private YangNode getIncludedNode(YangNode root, String tempPathName) { |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 560 | |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame^] | 561 | List<YangInclude> includeList; |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 562 | |
| 563 | if (root instanceof YangModule) { |
| 564 | includeList = ((YangModule) root).getIncludeList(); |
| 565 | } else { |
| 566 | includeList = ((YangSubModule) root).getIncludeList(); |
| 567 | } |
| 568 | |
| 569 | for (YangInclude included : includeList) { |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame^] | 570 | if (verifyChildNode(included.getIncludedNode(), tempPathName)) { |
| 571 | return included.getIncludedNode(); |
| 572 | } |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 573 | } |
| 574 | |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame^] | 575 | return null; |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 576 | } |
| 577 | |
| 578 | /** |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame^] | 579 | * Verifies for child nodes in sub module. |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 580 | * |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame^] | 581 | * @param node submodule node |
| 582 | * @param name name of child node |
| 583 | * @return true if child node found |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 584 | */ |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame^] | 585 | private boolean verifyChildNode(YangNode node, String name) { |
| 586 | node = node.getChild(); |
| 587 | while (node != null) { |
| 588 | if (node.getName().equals(name)) { |
| 589 | return true; |
| 590 | } |
| 591 | node = node.getNextSibling(); |
| 592 | } |
| 593 | return false; |
| 594 | } |
| 595 | |
| 596 | |
| 597 | /** |
| 598 | * Returns augment's node id. |
| 599 | * |
| 600 | * @param nodeId node identifier |
| 601 | * @param absPaths absolute paths |
| 602 | * @param root root node |
| 603 | * @return augment's node id |
| 604 | */ |
| 605 | private String getAugmentNodeIdentifier(YangNodeIdentifier nodeId, List<YangAtomicPath> absPaths, YangNode root) { |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 606 | |
| 607 | Iterator<YangAtomicPath> nodeIdIterator = absPaths.iterator(); |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame^] | 608 | YangAtomicPath tempNodeId; |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 609 | StringBuilder builder = new StringBuilder(); |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame^] | 610 | String id; |
| 611 | PrefixResolverType type; |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 612 | while (nodeIdIterator.hasNext()) { |
| 613 | tempNodeId = nodeIdIterator.next(); |
| 614 | if (!tempNodeId.getNodeIdentifier().equals(nodeId)) { |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame^] | 615 | type = getPrefixResolverTypes().get(tempNodeId); |
| 616 | switch (type) { |
| 617 | case INTER_TO_INTRA: |
| 618 | id = "/" + tempNodeId.getNodeIdentifier().getName(); |
| 619 | break; |
| 620 | case INTRA_TO_INTER: |
| 621 | if (!getRootsPrefix(root).equals(tempNodeId.getNodeIdentifier().getPrefix())) { |
| 622 | id = "/" + tempNodeId.getNodeIdentifier().getPrefix() + ":" + tempNodeId.getNodeIdentifier() |
| 623 | .getName(); |
| 624 | } else { |
| 625 | id = "/" + tempNodeId.getNodeIdentifier().getName(); |
| 626 | } |
| 627 | break; |
| 628 | case INTER_TO_INTER: |
| 629 | id = "/" + tempNodeId.getNodeIdentifier().getPrefix() + ":" + tempNodeId.getNodeIdentifier() |
| 630 | .getName(); |
| 631 | break; |
| 632 | case NO_PREFIX_CHANGE_FOR_INTRA: |
| 633 | id = "/" + tempNodeId.getNodeIdentifier().getName(); |
| 634 | break; |
| 635 | case NO_PREFIX_CHANGE_FOR_INTER: |
| 636 | if (!getRootsPrefix(root).equals(tempNodeId.getNodeIdentifier().getPrefix())) { |
| 637 | id = "/" + tempNodeId.getNodeIdentifier().getPrefix() + ":" + tempNodeId.getNodeIdentifier() |
| 638 | .getName(); |
| 639 | } else { |
| 640 | id = "/" + tempNodeId.getNodeIdentifier().getName(); |
| 641 | } |
| 642 | break; |
| 643 | default: |
| 644 | id = "/" + tempNodeId.getNodeIdentifier().getName(); |
| 645 | break; |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 646 | } |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame^] | 647 | builder.append(id); |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 648 | } else { |
| 649 | return builder.toString(); |
| 650 | } |
| 651 | } |
| 652 | return null; |
| 653 | } |
| 654 | |
| 655 | /** |
| 656 | * Searches augment node in root node. |
| 657 | * |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame^] | 658 | * @param node root node |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 659 | * @param tempNodeId node identifier |
| 660 | * @return target augment node |
| 661 | */ |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame^] | 662 | |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 663 | private YangNode searchAugmentNode(YangNode node, String tempNodeId) { |
| 664 | node = node.getChild(); |
| 665 | while (node != null) { |
| 666 | if (node instanceof YangAugment) { |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame^] | 667 | if (node.getName().equals(tempNodeId)) { |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 668 | return node; |
| 669 | } |
| 670 | } |
| 671 | node = node.getNextSibling(); |
| 672 | } |
| 673 | return null; |
| 674 | } |
| 675 | |
| 676 | /** |
| 677 | * Validates for target node if target node found or not. |
| 678 | * |
| 679 | * @param tempNode temporary node |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame^] | 680 | * @param index current index of list |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 681 | * @return false if target node found |
| 682 | */ |
| 683 | private boolean validate(YangNode tempNode, int index) { |
| 684 | |
| 685 | int size = getAbsPaths().size(); |
| 686 | if (tempNode != null && index != size) { |
| 687 | return true; |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame^] | 688 | } else if (tempNode != null) { |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 689 | return false; |
| 690 | // this is your target node. |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame^] | 691 | } else if (index != size) { |
| 692 | return true; |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 693 | // this could be in submodule as well. |
| 694 | } |
| 695 | return false; |
| 696 | } |
| 697 | |
| 698 | /** |
| 699 | * Searches target node in root node. |
| 700 | * |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame^] | 701 | * @param node root node |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 702 | * @param curNodeId YANG node identifier |
| 703 | * @return linked target node |
| 704 | */ |
| 705 | private YangNode searchTargetNode(YangNode node, YangNodeIdentifier curNodeId) { |
| 706 | |
| 707 | if (node != null) { |
| 708 | node = node.getChild(); |
| 709 | } |
| 710 | |
| 711 | while (node != null) { |
| 712 | if (node.getName().equals(curNodeId.getName())) { |
| 713 | return node; |
| 714 | } |
| 715 | node = node.getNextSibling(); |
| 716 | } |
| 717 | return null; |
| 718 | } |
| 719 | |
| 720 | /** |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 721 | * Returns root prefix. |
| 722 | * |
| 723 | * @param root root node |
| 724 | * @return root prefix |
| 725 | */ |
| 726 | private String getRootsPrefix(YangNode root) { |
| 727 | if (root instanceof YangModule) { |
| 728 | return ((YangModule) root).getPrefix(); |
| 729 | } else { |
| 730 | return ((YangSubModule) root).getPrefix(); |
| 731 | } |
| 732 | } |
| 733 | |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame^] | 734 | /** |
| 735 | * Resolves prefix and provides prefix resolver list. |
| 736 | * |
| 737 | * @param absolutePaths absolute paths |
| 738 | */ |
| 739 | private void parsePrefixResolverList(List<YangAtomicPath> absolutePaths) { |
| 740 | Iterator<YangAtomicPath> pathIterator = absolutePaths.iterator(); |
| 741 | YangAtomicPath absPath; |
| 742 | String prePrefix; |
| 743 | String curPrefix = null; |
| 744 | while (pathIterator.hasNext()) { |
| 745 | prePrefix = curPrefix; |
| 746 | absPath = pathIterator.next(); |
| 747 | curPrefix = absPath.getNodeIdentifier().getPrefix(); |
| 748 | if (curPrefix != null) { |
| 749 | if (!curPrefix.equals(prePrefix)) { |
| 750 | if (prePrefix != null) { |
| 751 | addToPrefixResolverList(INTER_TO_INTER, absPath); |
| 752 | } else { |
| 753 | addToPrefixResolverList(INTRA_TO_INTER, absPath); |
| 754 | } |
| 755 | } else { |
| 756 | addToPrefixResolverList(NO_PREFIX_CHANGE_FOR_INTER, absPath); |
| 757 | } |
| 758 | } else { |
| 759 | if (prePrefix != null) { |
| 760 | addToPrefixResolverList(INTER_TO_INTRA, absPath); |
| 761 | } else { |
| 762 | addToPrefixResolverList(NO_PREFIX_CHANGE_FOR_INTRA, absPath); |
| 763 | } |
| 764 | } |
| 765 | } |
| 766 | |
| 767 | } |
| 768 | |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 769 | } |