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 | |
Bharat saraswal | d50c638 | 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; |
janani b | 23ccc31 | 2016-07-14 19:35:22 +0530 | [diff] [blame] | 25 | import org.onosproject.yangutils.datamodel.YangAtomicPath; |
| 26 | import org.onosproject.yangutils.datamodel.YangAugment; |
| 27 | import org.onosproject.yangutils.datamodel.YangCase; |
| 28 | import org.onosproject.yangutils.datamodel.YangChoice; |
| 29 | import org.onosproject.yangutils.datamodel.YangGrouping; |
| 30 | import org.onosproject.yangutils.datamodel.YangImport; |
| 31 | import org.onosproject.yangutils.datamodel.YangInclude; |
| 32 | import org.onosproject.yangutils.datamodel.YangInput; |
| 33 | import org.onosproject.yangutils.datamodel.YangLeaf; |
| 34 | import org.onosproject.yangutils.datamodel.YangLeafList; |
| 35 | import org.onosproject.yangutils.datamodel.YangLeafRef; |
| 36 | import org.onosproject.yangutils.datamodel.YangLeavesHolder; |
| 37 | import org.onosproject.yangutils.datamodel.YangModule; |
| 38 | import org.onosproject.yangutils.datamodel.YangNode; |
| 39 | import org.onosproject.yangutils.datamodel.YangNodeIdentifier; |
| 40 | import org.onosproject.yangutils.datamodel.YangOutput; |
| 41 | import org.onosproject.yangutils.datamodel.YangSubModule; |
| 42 | import org.onosproject.yangutils.datamodel.YangTypeDef; |
| 43 | import org.onosproject.yangutils.datamodel.YangUses; |
| 44 | import org.onosproject.yangutils.linker.exceptions.LinkerException; |
| 45 | |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 46 | import static org.onosproject.yangutils.linker.impl.PrefixResolverType.INTER_TO_INTER; |
| 47 | import static org.onosproject.yangutils.linker.impl.PrefixResolverType.INTER_TO_INTRA; |
| 48 | import static org.onosproject.yangutils.linker.impl.PrefixResolverType.INTRA_TO_INTER; |
| 49 | import static org.onosproject.yangutils.linker.impl.PrefixResolverType.NO_PREFIX_CHANGE_FOR_INTER; |
| 50 | import static org.onosproject.yangutils.linker.impl.PrefixResolverType.NO_PREFIX_CHANGE_FOR_INTRA; |
janani b | 23ccc31 | 2016-07-14 19:35:22 +0530 | [diff] [blame] | 51 | import static org.onosproject.yangutils.utils.UtilConstants.INPUT; |
| 52 | import static org.onosproject.yangutils.utils.UtilConstants.OUTPUT; |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 53 | |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 54 | /** |
| 55 | * Represents x-path linking. |
| 56 | * |
| 57 | * @param <T> x-path linking can be done for target node or for target leaf/leaf-list |
| 58 | */ |
| 59 | public class YangXpathLinker<T> { |
| 60 | |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 61 | private List<YangAtomicPath> absPaths; |
| 62 | private YangNode rootNode; |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 63 | private Map<YangAtomicPath, PrefixResolverType> prefixResolverTypes; |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 64 | private String curPrefix; |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 65 | |
| 66 | /** |
| 67 | * Creates an instance of x-path linker. |
| 68 | */ |
| 69 | public YangXpathLinker() { |
| 70 | absPaths = new ArrayList<>(); |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 71 | } |
| 72 | |
| 73 | /** |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 74 | * Returns prefix resolver list. |
| 75 | * |
| 76 | * @return prefix resolver list |
| 77 | */ |
| 78 | public Map<YangAtomicPath, PrefixResolverType> getPrefixResolverTypes() { |
| 79 | return prefixResolverTypes; |
| 80 | } |
| 81 | |
| 82 | /** |
| 83 | * Sets prefix resolver list. |
| 84 | * |
| 85 | * @param prefixResolverTypes prefix resolver list. |
| 86 | */ |
| 87 | public void setPrefixResolverTypes(Map<YangAtomicPath, PrefixResolverType> prefixResolverTypes) { |
| 88 | this.prefixResolverTypes = prefixResolverTypes; |
| 89 | } |
| 90 | |
| 91 | /** |
| 92 | * Adds to the prefix resolver type map. |
| 93 | * |
| 94 | * @param type resolver type |
| 95 | * @param path absolute path |
| 96 | */ |
| 97 | private void addToPrefixResolverList(PrefixResolverType type, YangAtomicPath path) { |
| 98 | getPrefixResolverTypes().put(path, type); |
| 99 | } |
| 100 | |
| 101 | /** |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 102 | * Returns list of target nodes paths. |
| 103 | * |
| 104 | * @return target nodes paths |
| 105 | */ |
| 106 | private List<YangAtomicPath> getAbsPaths() { |
| 107 | return absPaths; |
| 108 | } |
| 109 | |
| 110 | /** |
| 111 | * Sets target nodes paths. |
| 112 | * |
| 113 | * @param absPaths target nodes paths |
| 114 | */ |
| 115 | private void setAbsPaths(List<YangAtomicPath> absPaths) { |
| 116 | this.absPaths = absPaths; |
| 117 | } |
| 118 | |
| 119 | /** |
| 120 | * Returns current prefix. |
| 121 | * |
| 122 | * @return current prefix |
| 123 | */ |
| 124 | private String getCurPrefix() { |
| 125 | return curPrefix; |
| 126 | } |
| 127 | |
| 128 | /** |
| 129 | * Sets current prefix. |
| 130 | * |
| 131 | * @param curPrefix current prefix |
| 132 | */ |
| 133 | private void setCurPrefix(String curPrefix) { |
| 134 | this.curPrefix = curPrefix; |
| 135 | } |
| 136 | |
| 137 | /** |
| 138 | * Return root node. |
| 139 | * |
| 140 | * @return root Node |
| 141 | */ |
| 142 | private YangNode getRootNode() { |
| 143 | return rootNode; |
| 144 | } |
| 145 | |
| 146 | /** |
| 147 | * Sets root node. |
| 148 | * |
| 149 | * @param rootNode root node |
| 150 | */ |
| 151 | private void setRootNode(YangNode rootNode) { |
| 152 | this.rootNode = rootNode; |
| 153 | } |
| 154 | |
| 155 | /** |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 156 | * Adds node to resolved nodes. |
| 157 | * |
| 158 | * @param path absolute path |
| 159 | * @param node resolved node |
| 160 | */ |
| 161 | private void addToResolvedNodes(YangAtomicPath path, YangNode node) { |
Bharat saraswal | d50c638 | 2016-07-14 21:57:13 +0530 | [diff] [blame] | 162 | path.setResolvedNode(node); |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 163 | } |
| 164 | |
| 165 | /** |
| 166 | * Returns list of augment nodes. |
| 167 | * |
| 168 | * @param node root node |
| 169 | * @return list of augment nodes |
| 170 | */ |
| 171 | public List<YangAugment> getListOfYangAugment(YangNode node) { |
| 172 | node = node.getChild(); |
| 173 | List<YangAugment> augments = new ArrayList<>(); |
| 174 | while (node != null) { |
| 175 | if (node instanceof YangAugment) { |
| 176 | augments.add((YangAugment) node); |
| 177 | } |
| 178 | node = node.getNextSibling(); |
| 179 | } |
| 180 | return augments; |
| 181 | } |
| 182 | |
| 183 | /** |
| 184 | * Process absolute node path for target leaf. |
| 185 | * |
janani b | 23ccc31 | 2016-07-14 19:35:22 +0530 | [diff] [blame] | 186 | * @param atomicPaths atomic path node list |
Bharat saraswal | d50c638 | 2016-07-14 21:57:13 +0530 | [diff] [blame] | 187 | * @param root root node |
| 188 | * @param leafref instance of YANG leafref |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 189 | * @return linked target node |
| 190 | */ |
janani b | 23ccc31 | 2016-07-14 19:35:22 +0530 | [diff] [blame] | 191 | public T processLeafRefXpathLinking(List<YangAtomicPath> atomicPaths, YangNode root, YangLeafRef leafref) { |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 192 | |
Bharat saraswal | d50c638 | 2016-07-14 21:57:13 +0530 | [diff] [blame] | 193 | YangNode targetNode; |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 194 | setRootNode(root); |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 195 | setPrefixResolverTypes(new HashMap<>()); |
janani b | 23ccc31 | 2016-07-14 19:35:22 +0530 | [diff] [blame] | 196 | parsePrefixResolverList(atomicPaths); |
| 197 | YangAtomicPath leafRefPath = atomicPaths.get(atomicPaths.size() - 1); |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 198 | |
| 199 | // When leaf-ref path contains only one absolute path. |
janani b | 23ccc31 | 2016-07-14 19:35:22 +0530 | [diff] [blame] | 200 | if (atomicPaths.size() == 1) { |
| 201 | targetNode = getTargetNodewhenSizeIsOne(atomicPaths); |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 202 | } else { |
janani b | 23ccc31 | 2016-07-14 19:35:22 +0530 | [diff] [blame] | 203 | atomicPaths.remove(atomicPaths.size() - 1); |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 204 | |
janani b | 23ccc31 | 2016-07-14 19:35:22 +0530 | [diff] [blame] | 205 | setAbsPaths(atomicPaths); |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 206 | targetNode = parseData(root); |
| 207 | } |
| 208 | if (targetNode == null) { |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 209 | targetNode = searchInSubModule(root); |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 210 | } |
| 211 | |
janani b | 23ccc31 | 2016-07-14 19:35:22 +0530 | [diff] [blame] | 212 | // Invalid path presence in the node list is checked. |
| 213 | validateInvalidNodesInThePath(leafref); |
| 214 | |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 215 | if (targetNode != null) { |
| 216 | YangLeaf targetLeaf = searchReferredLeaf(targetNode, leafRefPath.getNodeIdentifier().getName()); |
| 217 | if (targetLeaf == null) { |
| 218 | YangLeafList targetLeafList = searchReferredLeafList(targetNode, |
| 219 | leafRefPath.getNodeIdentifier().getName()); |
| 220 | if (targetLeafList != null) { |
| 221 | return (T) targetLeafList; |
| 222 | } else { |
janani b | 23ccc31 | 2016-07-14 19:35:22 +0530 | [diff] [blame] | 223 | LinkerException linkerException = new LinkerException("YANG file error: Unable to find base " + |
| 224 | "leaf/leaf-list for given leafref path " |
| 225 | + leafref.getPath()); |
| 226 | linkerException.setCharPosition(leafref.getCharPosition()); |
| 227 | linkerException.setLine(leafref.getLineNumber()); |
| 228 | throw linkerException; |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 229 | } |
| 230 | } |
| 231 | return (T) targetLeaf; |
| 232 | } |
| 233 | return null; |
| 234 | } |
| 235 | |
| 236 | /** |
janani b | 23ccc31 | 2016-07-14 19:35:22 +0530 | [diff] [blame] | 237 | * Validates the nodes in the path for any invalid node. |
| 238 | * |
| 239 | * @param leafref instance of YANG leafref |
| 240 | */ |
| 241 | private void validateInvalidNodesInThePath(YangLeafRef leafref) { |
Bharat saraswal | d50c638 | 2016-07-14 21:57:13 +0530 | [diff] [blame] | 242 | for (YangAtomicPath absolutePath : (Iterable<YangAtomicPath>) leafref.getAtomicPath()) { |
| 243 | YangNode nodeInPath = absolutePath.getResolvedNode(); |
janani b | 23ccc31 | 2016-07-14 19:35:22 +0530 | [diff] [blame] | 244 | |
| 245 | if (nodeInPath instanceof YangGrouping || nodeInPath instanceof YangUses |
| 246 | || nodeInPath instanceof YangTypeDef || nodeInPath instanceof YangCase |
| 247 | || nodeInPath instanceof YangChoice) { |
| 248 | LinkerException linkerException = new LinkerException("YANG file error: The target node, in the " + |
| 249 | "leafref path " + leafref.getPath() + ", is invalid."); |
| 250 | linkerException.setCharPosition(leafref.getCharPosition()); |
| 251 | linkerException.setLine(leafref.getLineNumber()); |
| 252 | throw linkerException; |
| 253 | } |
| 254 | } |
| 255 | } |
| 256 | |
| 257 | /** |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 258 | * Returns target node when leaf-ref has only one absolute path in list. |
| 259 | * |
| 260 | * @param absPaths absolute paths |
| 261 | * @return target node |
| 262 | */ |
| 263 | private YangNode getTargetNodewhenSizeIsOne(List<YangAtomicPath> absPaths) { |
| 264 | if (absPaths.get(0).getNodeIdentifier().getPrefix() != null |
| 265 | && !absPaths.get(0).getNodeIdentifier().getPrefix().equals(getRootsPrefix(getRootNode()))) { |
| 266 | return getImportedNode(getRootNode(), absPaths.get(0).getNodeIdentifier()); |
| 267 | } |
| 268 | return getRootNode(); |
| 269 | |
| 270 | } |
| 271 | |
| 272 | /** |
| 273 | * Process absolute node path linking for augment. |
| 274 | * |
| 275 | * @param absPaths absolute path node list |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 276 | * @param root root node |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 277 | * @return linked target node |
| 278 | */ |
| 279 | public YangNode processAugmentXpathLinking(List<YangAtomicPath> absPaths, YangNode root) { |
| 280 | |
| 281 | setAbsPaths(absPaths); |
| 282 | setRootNode(root); |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 283 | setPrefixResolverTypes(new HashMap<>()); |
| 284 | parsePrefixResolverList(absPaths); |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 285 | |
| 286 | YangNode targetNode = parseData(root); |
| 287 | |
| 288 | if (targetNode == null) { |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 289 | targetNode = searchInSubModule(root); |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 290 | } |
| 291 | return targetNode; |
| 292 | |
| 293 | } |
| 294 | |
| 295 | /** |
| 296 | * Searches for the referred leaf in target node. |
| 297 | * |
| 298 | * @param targetNode target node |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 299 | * @param leafName leaf name |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 300 | * @return target leaf |
| 301 | */ |
| 302 | private YangLeaf searchReferredLeaf(YangNode targetNode, String leafName) { |
| 303 | if (!(targetNode instanceof YangLeavesHolder)) { |
| 304 | throw new LinkerException("Refered node " + targetNode.getName() + |
| 305 | "should be of type leaves holder "); |
| 306 | } |
| 307 | YangLeavesHolder holder = (YangLeavesHolder) targetNode; |
| 308 | List<YangLeaf> leaves = holder.getListOfLeaf(); |
janani b | 23ccc31 | 2016-07-14 19:35:22 +0530 | [diff] [blame] | 309 | if (leaves != null && !leaves.isEmpty()) { |
Bharat saraswal | d50c638 | 2016-07-14 21:57:13 +0530 | [diff] [blame] | 310 | for (YangLeaf leaf : leaves) { |
janani b | 23ccc31 | 2016-07-14 19:35:22 +0530 | [diff] [blame] | 311 | if (leaf.getName().equals(leafName)) { |
| 312 | return leaf; |
| 313 | } |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 314 | } |
| 315 | } |
| 316 | return null; |
| 317 | } |
| 318 | |
| 319 | /** |
| 320 | * Searches for the referred leaf-list in target node. |
| 321 | * |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 322 | * @param targetNode target node |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 323 | * @param leafListName leaf-list name |
| 324 | * @return target leaf-list |
| 325 | */ |
| 326 | private YangLeafList searchReferredLeafList(YangNode targetNode, String leafListName) { |
| 327 | if (!(targetNode instanceof YangLeavesHolder)) { |
| 328 | throw new LinkerException("Refered node " + targetNode.getName() + |
| 329 | "should be of type leaves holder "); |
| 330 | } |
| 331 | YangLeavesHolder holder = (YangLeavesHolder) targetNode; |
| 332 | List<YangLeafList> leavesList = holder.getListOfLeafList(); |
janani b | 23ccc31 | 2016-07-14 19:35:22 +0530 | [diff] [blame] | 333 | if (leavesList != null && !leavesList.isEmpty()) { |
Bharat saraswal | d50c638 | 2016-07-14 21:57:13 +0530 | [diff] [blame] | 334 | for (YangLeafList leafList : leavesList) { |
janani b | 23ccc31 | 2016-07-14 19:35:22 +0530 | [diff] [blame] | 335 | if (leafList.getName().equals(leafListName)) { |
| 336 | return leafList; |
| 337 | } |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 338 | } |
| 339 | } |
| 340 | return null; |
| 341 | } |
| 342 | |
| 343 | /** |
| 344 | * Process linking using for node identifier for inter/intra file. |
| 345 | * |
| 346 | * @param root root node |
| 347 | * @return linked target node |
| 348 | */ |
| 349 | private YangNode parseData(YangNode root) { |
| 350 | String rootPrefix = getRootsPrefix(root); |
| 351 | Iterator<YangAtomicPath> pathIterator = getAbsPaths().iterator(); |
| 352 | YangAtomicPath path = pathIterator.next(); |
| 353 | if (path.getNodeIdentifier().getPrefix() != null |
| 354 | && !path.getNodeIdentifier().getPrefix().equals(rootPrefix)) { |
| 355 | return parsePath(getImportedNode(root, path.getNodeIdentifier())); |
| 356 | } else { |
| 357 | return parsePath(root); |
| 358 | } |
| 359 | } |
| 360 | |
| 361 | /** |
| 362 | * Process linking of target node in root node. |
| 363 | * |
| 364 | * @param root root node |
| 365 | * @return linked target node |
| 366 | */ |
| 367 | private YangNode parsePath(YangNode root) { |
| 368 | |
| 369 | YangNode tempNode = root; |
| 370 | Stack<YangNode> linkerStack = new Stack<>(); |
| 371 | Iterator<YangAtomicPath> pathIterator = getAbsPaths().iterator(); |
| 372 | YangAtomicPath tempPath = pathIterator.next(); |
| 373 | setCurPrefix(tempPath.getNodeIdentifier().getPrefix()); |
| 374 | int index = 0; |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 375 | YangNode tempAugment; |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 376 | do { |
| 377 | |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 378 | if (tempPath.getNodeIdentifier().getPrefix() == null) { |
| 379 | tempAugment = resolveIntraFileAugment(tempPath, root); |
| 380 | } else { |
| 381 | tempAugment = resolveInterFileAugment(tempPath, root); |
| 382 | } |
| 383 | |
| 384 | if (tempAugment != null) { |
| 385 | linkerStack.push(tempNode); |
| 386 | tempNode = tempAugment; |
| 387 | } |
| 388 | |
| 389 | tempNode = searchTargetNode(tempNode, tempPath.getNodeIdentifier()); |
| 390 | if (tempNode == null && linkerStack.size() != 0) { |
| 391 | tempNode = linkerStack.peek(); |
| 392 | linkerStack.pop(); |
| 393 | tempNode = searchTargetNode(tempNode, tempPath.getNodeIdentifier()); |
| 394 | } |
| 395 | |
| 396 | if (tempNode != null) { |
| 397 | addToResolvedNodes(tempPath, tempNode); |
| 398 | } |
| 399 | |
| 400 | if (index == getAbsPaths().size() - 1) { |
| 401 | break; |
| 402 | } |
| 403 | tempPath = pathIterator.next(); |
| 404 | index++; |
| 405 | } while (validate(tempNode, index)); |
| 406 | return tempNode; |
| 407 | } |
| 408 | |
| 409 | /** |
| 410 | * Resolves intra file augment linking. |
| 411 | * |
| 412 | * @param tempPath temporary absolute path |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 413 | * @param root root node |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 414 | * @return linked target node |
| 415 | */ |
| 416 | private YangNode resolveIntraFileAugment(YangAtomicPath tempPath, YangNode root) { |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 417 | YangNode tempAugment; |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 418 | if (getCurPrefix() != tempPath.getNodeIdentifier().getPrefix()) { |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 419 | root = getIncludedNode(getRootNode(), tempPath.getNodeIdentifier().getName()); |
| 420 | if (root == null) { |
| 421 | root = getIncludedNode(getRootNode(), getAugmentNodeIdentifier(tempPath.getNodeIdentifier(), absPaths, |
| 422 | getRootNode())); |
| 423 | if (root == null) { |
| 424 | root = getRootNode(); |
| 425 | } |
| 426 | } |
| 427 | } else { |
| 428 | if (getCurPrefix() != null) { |
| 429 | root = getImportedNode(root, tempPath.getNodeIdentifier()); |
| 430 | } |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 431 | } |
| 432 | |
| 433 | setCurPrefix(tempPath.getNodeIdentifier().getPrefix()); |
| 434 | tempAugment = getAugment(tempPath.getNodeIdentifier(), root, getAbsPaths()); |
| 435 | if (tempAugment == null) { |
| 436 | tempAugment = getAugment(tempPath.getNodeIdentifier(), getRootNode(), getAbsPaths()); |
| 437 | } |
| 438 | return tempAugment; |
| 439 | } |
| 440 | |
| 441 | /** |
| 442 | * Resolves inter file augment linking. |
| 443 | * |
| 444 | * @param tempPath temporary absolute path |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 445 | * @param root root node |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 446 | * @return linked target node |
| 447 | */ |
| 448 | private YangNode resolveInterFileAugment(YangAtomicPath tempPath, YangNode root) { |
| 449 | |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 450 | YangNode tempAugment; |
| 451 | if (!tempPath.getNodeIdentifier().getPrefix().equals(getCurPrefix())) { |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 452 | setCurPrefix(tempPath.getNodeIdentifier().getPrefix()); |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 453 | root = getImportedNode(getRootNode(), tempPath.getNodeIdentifier()); |
| 454 | } |
| 455 | tempAugment = getAugment(tempPath.getNodeIdentifier(), root, getAbsPaths()); |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 456 | if (tempAugment == null) { |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 457 | return resolveInterToInterFileAugment(root); |
| 458 | } |
| 459 | return tempAugment; |
| 460 | } |
| 461 | |
| 462 | /** |
| 463 | * Resolves augment when prefix changed from inter file to inter file. |
| 464 | * it may be possible that the prefix used in imported module is different the |
| 465 | * given list of node identifiers. |
| 466 | * |
| 467 | * @param root root node |
| 468 | * @return target node |
| 469 | */ |
| 470 | private YangNode resolveInterToInterFileAugment(YangNode root) { |
| 471 | List<YangAugment> augments = getListOfYangAugment(root); |
| 472 | int index; |
| 473 | List<YangAtomicPath> absPaths = new ArrayList<>(); |
| 474 | for (YangAugment augment : augments) { |
| 475 | index = 0; |
| 476 | |
| 477 | for (YangAtomicPath path : augment.getTargetNode()) { |
| 478 | |
| 479 | if (!searchForAugmentInImportedNode(path.getNodeIdentifier(), index)) { |
| 480 | absPaths.clear(); |
| 481 | break; |
| 482 | } |
| 483 | absPaths.add(path); |
| 484 | index++; |
| 485 | } |
| 486 | if (!absPaths.isEmpty() && absPaths.size() == getAbsPaths().size() - 1) { |
| 487 | return augment; |
| 488 | } else { |
| 489 | absPaths.clear(); |
| 490 | } |
| 491 | } |
| 492 | return null; |
| 493 | } |
| 494 | |
| 495 | /** |
| 496 | * Searches for the augment node in imported module when prefix has changed from |
| 497 | * inter file to inter file. |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 498 | * |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 499 | * @param nodeId node id |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 500 | * @param index index |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 501 | * @return true if found |
| 502 | */ |
| 503 | private boolean searchForAugmentInImportedNode(YangNodeIdentifier nodeId, int index) { |
| 504 | YangNodeIdentifier tempNodeId = getAbsPaths().get(index).getNodeIdentifier(); |
| 505 | return nodeId.getName().equals(tempNodeId.getName()); |
| 506 | } |
| 507 | |
| 508 | /** |
| 509 | * Returns augment node. |
| 510 | * |
| 511 | * @param tempNodeId temporary absolute path id |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 512 | * @param root root node |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 513 | * @return linked target node |
| 514 | */ |
| 515 | private YangNode getAugment(YangNodeIdentifier tempNodeId, YangNode root, List<YangAtomicPath> absPaths) { |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 516 | String augmentName = getAugmentNodeIdentifier(tempNodeId, absPaths, root); |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 517 | if (augmentName != null) { |
| 518 | return searchAugmentNode(root, augmentName); |
| 519 | } |
| 520 | return null; |
| 521 | } |
| 522 | |
| 523 | /** |
| 524 | * Process linking using import list. |
| 525 | * |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 526 | * @param root root node |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 527 | * @param nodeId node identifier |
| 528 | * @return linked target node |
| 529 | */ |
| 530 | private YangNode getImportedNode(YangNode root, YangNodeIdentifier nodeId) { |
| 531 | |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 532 | List<YangImport> importList; |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 533 | |
| 534 | if (root instanceof YangModule) { |
| 535 | importList = ((YangModule) root).getImportList(); |
| 536 | } else { |
| 537 | importList = ((YangSubModule) root).getImportList(); |
| 538 | } |
| 539 | |
| 540 | for (YangImport imported : importList) { |
| 541 | if (imported.getPrefixId().equals(nodeId.getPrefix())) { |
| 542 | return imported.getImportedNode(); |
| 543 | } |
| 544 | } |
| 545 | |
| 546 | return root; |
| 547 | } |
| 548 | |
| 549 | /** |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 550 | * Searches in sub-module node. |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 551 | * |
| 552 | * @param root root node |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 553 | * @return target linked node |
| 554 | */ |
| 555 | private YangNode searchInSubModule(YangNode root) { |
| 556 | List<YangInclude> includeList; |
| 557 | YangNode tempNode; |
| 558 | if (root instanceof YangModule) { |
| 559 | includeList = ((YangModule) root).getIncludeList(); |
| 560 | } else { |
| 561 | includeList = ((YangSubModule) root).getIncludeList(); |
| 562 | } |
| 563 | |
| 564 | for (YangInclude included : includeList) { |
| 565 | tempNode = parseData(included.getIncludedNode()); |
| 566 | if (tempNode != null) { |
| 567 | return tempNode; |
| 568 | } |
| 569 | } |
| 570 | return null; |
| 571 | } |
| 572 | |
| 573 | /** |
| 574 | * Process linking using include list. |
| 575 | * |
| 576 | * @param root root node |
| 577 | * @param tempPathName temporary path node name |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 578 | * @return linked target node |
| 579 | */ |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 580 | private YangNode getIncludedNode(YangNode root, String tempPathName) { |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 581 | |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 582 | List<YangInclude> includeList; |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 583 | |
| 584 | if (root instanceof YangModule) { |
| 585 | includeList = ((YangModule) root).getIncludeList(); |
| 586 | } else { |
| 587 | includeList = ((YangSubModule) root).getIncludeList(); |
| 588 | } |
| 589 | |
| 590 | for (YangInclude included : includeList) { |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 591 | if (verifyChildNode(included.getIncludedNode(), tempPathName)) { |
| 592 | return included.getIncludedNode(); |
| 593 | } |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 594 | } |
| 595 | |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 596 | return null; |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 597 | } |
| 598 | |
| 599 | /** |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 600 | * Verifies for child nodes in sub module. |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 601 | * |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 602 | * @param node submodule node |
| 603 | * @param name name of child node |
| 604 | * @return true if child node found |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 605 | */ |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 606 | private boolean verifyChildNode(YangNode node, String name) { |
| 607 | node = node.getChild(); |
| 608 | while (node != null) { |
| 609 | if (node.getName().equals(name)) { |
| 610 | return true; |
| 611 | } |
| 612 | node = node.getNextSibling(); |
| 613 | } |
| 614 | return false; |
| 615 | } |
| 616 | |
| 617 | |
| 618 | /** |
| 619 | * Returns augment's node id. |
| 620 | * |
| 621 | * @param nodeId node identifier |
| 622 | * @param absPaths absolute paths |
| 623 | * @param root root node |
| 624 | * @return augment's node id |
| 625 | */ |
| 626 | private String getAugmentNodeIdentifier(YangNodeIdentifier nodeId, List<YangAtomicPath> absPaths, YangNode root) { |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 627 | |
| 628 | Iterator<YangAtomicPath> nodeIdIterator = absPaths.iterator(); |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 629 | YangAtomicPath tempNodeId; |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 630 | StringBuilder builder = new StringBuilder(); |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 631 | String id; |
| 632 | PrefixResolverType type; |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 633 | while (nodeIdIterator.hasNext()) { |
| 634 | tempNodeId = nodeIdIterator.next(); |
| 635 | if (!tempNodeId.getNodeIdentifier().equals(nodeId)) { |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 636 | type = getPrefixResolverTypes().get(tempNodeId); |
| 637 | switch (type) { |
| 638 | case INTER_TO_INTRA: |
| 639 | id = "/" + tempNodeId.getNodeIdentifier().getName(); |
| 640 | break; |
| 641 | case INTRA_TO_INTER: |
| 642 | if (!getRootsPrefix(root).equals(tempNodeId.getNodeIdentifier().getPrefix())) { |
| 643 | id = "/" + tempNodeId.getNodeIdentifier().getPrefix() + ":" + tempNodeId.getNodeIdentifier() |
| 644 | .getName(); |
| 645 | } else { |
| 646 | id = "/" + tempNodeId.getNodeIdentifier().getName(); |
| 647 | } |
| 648 | break; |
| 649 | case INTER_TO_INTER: |
| 650 | id = "/" + tempNodeId.getNodeIdentifier().getPrefix() + ":" + tempNodeId.getNodeIdentifier() |
| 651 | .getName(); |
| 652 | break; |
| 653 | case NO_PREFIX_CHANGE_FOR_INTRA: |
| 654 | id = "/" + tempNodeId.getNodeIdentifier().getName(); |
| 655 | break; |
| 656 | case NO_PREFIX_CHANGE_FOR_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 | default: |
| 665 | id = "/" + tempNodeId.getNodeIdentifier().getName(); |
| 666 | break; |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 667 | } |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 668 | builder.append(id); |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 669 | } else { |
| 670 | return builder.toString(); |
| 671 | } |
| 672 | } |
| 673 | return null; |
| 674 | } |
| 675 | |
| 676 | /** |
| 677 | * Searches augment node in root node. |
| 678 | * |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 679 | * @param node root node |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 680 | * @param tempNodeId node identifier |
| 681 | * @return target augment node |
| 682 | */ |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 683 | |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 684 | private YangNode searchAugmentNode(YangNode node, String tempNodeId) { |
| 685 | node = node.getChild(); |
| 686 | while (node != null) { |
| 687 | if (node instanceof YangAugment) { |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 688 | if (node.getName().equals(tempNodeId)) { |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 689 | return node; |
| 690 | } |
| 691 | } |
| 692 | node = node.getNextSibling(); |
| 693 | } |
| 694 | return null; |
| 695 | } |
| 696 | |
| 697 | /** |
| 698 | * Validates for target node if target node found or not. |
| 699 | * |
| 700 | * @param tempNode temporary node |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 701 | * @param index current index of list |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 702 | * @return false if target node found |
| 703 | */ |
| 704 | private boolean validate(YangNode tempNode, int index) { |
| 705 | |
| 706 | int size = getAbsPaths().size(); |
| 707 | if (tempNode != null && index != size) { |
| 708 | return true; |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 709 | } else if (tempNode != null) { |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 710 | return false; |
| 711 | // this is your target node. |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 712 | } else if (index != size) { |
| 713 | return true; |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 714 | // this could be in submodule as well. |
| 715 | } |
| 716 | return false; |
| 717 | } |
| 718 | |
| 719 | /** |
| 720 | * Searches target node in root node. |
| 721 | * |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 722 | * @param node root node |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 723 | * @param curNodeId YANG node identifier |
| 724 | * @return linked target node |
| 725 | */ |
| 726 | private YangNode searchTargetNode(YangNode node, YangNodeIdentifier curNodeId) { |
| 727 | |
| 728 | if (node != null) { |
| 729 | node = node.getChild(); |
| 730 | } |
| 731 | |
| 732 | while (node != null) { |
janani b | 23ccc31 | 2016-07-14 19:35:22 +0530 | [diff] [blame] | 733 | if (node instanceof YangInput) { |
| 734 | if (curNodeId.getName().equalsIgnoreCase(INPUT)) { |
| 735 | return node; |
| 736 | } |
| 737 | } else if (node instanceof YangOutput) { |
| 738 | if (curNodeId.getName().equalsIgnoreCase(OUTPUT)) { |
| 739 | return node; |
| 740 | } |
| 741 | } |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 742 | if (node.getName().equals(curNodeId.getName())) { |
| 743 | return node; |
| 744 | } |
| 745 | node = node.getNextSibling(); |
| 746 | } |
| 747 | return null; |
| 748 | } |
| 749 | |
| 750 | /** |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 751 | * Returns root prefix. |
| 752 | * |
| 753 | * @param root root node |
| 754 | * @return root prefix |
| 755 | */ |
| 756 | private String getRootsPrefix(YangNode root) { |
| 757 | if (root instanceof YangModule) { |
| 758 | return ((YangModule) root).getPrefix(); |
| 759 | } else { |
| 760 | return ((YangSubModule) root).getPrefix(); |
| 761 | } |
| 762 | } |
| 763 | |
Bharat saraswal | b551aae | 2016-07-14 15:18:20 +0530 | [diff] [blame] | 764 | /** |
| 765 | * Resolves prefix and provides prefix resolver list. |
| 766 | * |
| 767 | * @param absolutePaths absolute paths |
| 768 | */ |
| 769 | private void parsePrefixResolverList(List<YangAtomicPath> absolutePaths) { |
| 770 | Iterator<YangAtomicPath> pathIterator = absolutePaths.iterator(); |
| 771 | YangAtomicPath absPath; |
| 772 | String prePrefix; |
| 773 | String curPrefix = null; |
| 774 | while (pathIterator.hasNext()) { |
| 775 | prePrefix = curPrefix; |
| 776 | absPath = pathIterator.next(); |
| 777 | curPrefix = absPath.getNodeIdentifier().getPrefix(); |
| 778 | if (curPrefix != null) { |
| 779 | if (!curPrefix.equals(prePrefix)) { |
| 780 | if (prePrefix != null) { |
| 781 | addToPrefixResolverList(INTER_TO_INTER, absPath); |
| 782 | } else { |
| 783 | addToPrefixResolverList(INTRA_TO_INTER, absPath); |
| 784 | } |
| 785 | } else { |
| 786 | addToPrefixResolverList(NO_PREFIX_CHANGE_FOR_INTER, absPath); |
| 787 | } |
| 788 | } else { |
| 789 | if (prePrefix != null) { |
| 790 | addToPrefixResolverList(INTER_TO_INTRA, absPath); |
| 791 | } else { |
| 792 | addToPrefixResolverList(NO_PREFIX_CHANGE_FOR_INTRA, absPath); |
| 793 | } |
| 794 | } |
| 795 | } |
| 796 | |
| 797 | } |
| 798 | |
Bharat saraswal | b1170bd | 2016-07-14 13:26:18 +0530 | [diff] [blame] | 799 | } |