2 * ============LICENSE_START=======================================================
3 * Copyright (C) 2021-2023 Nordix Foundation
4 * Modifications Copyright (C) 2021 Pantheon.tech
5 * Modifications Copyright (C) 2020-2022 Bell Canada.
6 * Modifications Copyright (C) 2022 TechMahindra Ltd.
7 * ================================================================================
8 * Licensed under the Apache License, Version 2.0 (the "License");
9 * you may not use this file except in compliance with the License.
10 * You may obtain a copy of the License at
12 * http://www.apache.org/licenses/LICENSE-2.0
14 * Unless required by applicable law or agreed to in writing, software
15 * distributed under the License is distributed on an "AS IS" BASIS,
16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17 * See the License for the specific language governing permissions and
18 * limitations under the License.
20 * SPDX-License-Identifier: Apache-2.0
21 * ============LICENSE_END=========================================================
24 package org.onap.cps.spi.impl;
26 import com.google.common.collect.ImmutableSet;
27 import com.google.common.collect.ImmutableSet.Builder;
28 import java.io.Serializable;
29 import java.util.ArrayList;
30 import java.util.Collection;
31 import java.util.Collections;
32 import java.util.HashMap;
33 import java.util.HashSet;
34 import java.util.List;
37 import java.util.regex.Matcher;
38 import java.util.regex.Pattern;
39 import java.util.stream.Collectors;
40 import javax.transaction.Transactional;
41 import lombok.RequiredArgsConstructor;
42 import lombok.extern.slf4j.Slf4j;
43 import org.hibernate.StaleStateException;
44 import org.onap.cps.cpspath.parser.CpsPathQuery;
45 import org.onap.cps.cpspath.parser.CpsPathUtil;
46 import org.onap.cps.cpspath.parser.PathParsingException;
47 import org.onap.cps.spi.CpsDataPersistenceService;
48 import org.onap.cps.spi.FetchDescendantsOption;
49 import org.onap.cps.spi.entities.AnchorEntity;
50 import org.onap.cps.spi.entities.DataspaceEntity;
51 import org.onap.cps.spi.entities.FragmentEntity;
52 import org.onap.cps.spi.entities.FragmentEntityArranger;
53 import org.onap.cps.spi.entities.FragmentExtract;
54 import org.onap.cps.spi.exceptions.AlreadyDefinedException;
55 import org.onap.cps.spi.exceptions.AlreadyDefinedExceptionBatch;
56 import org.onap.cps.spi.exceptions.ConcurrencyException;
57 import org.onap.cps.spi.exceptions.CpsAdminException;
58 import org.onap.cps.spi.exceptions.CpsPathException;
59 import org.onap.cps.spi.exceptions.DataNodeNotFoundException;
60 import org.onap.cps.spi.model.DataNode;
61 import org.onap.cps.spi.model.DataNodeBuilder;
62 import org.onap.cps.spi.repository.AnchorRepository;
63 import org.onap.cps.spi.repository.DataspaceRepository;
64 import org.onap.cps.spi.repository.FragmentNativeRepository;
65 import org.onap.cps.spi.repository.FragmentQueryBuilder;
66 import org.onap.cps.spi.repository.FragmentRepository;
67 import org.onap.cps.spi.utils.SessionManager;
68 import org.onap.cps.utils.JsonObjectMapper;
69 import org.springframework.dao.DataIntegrityViolationException;
70 import org.springframework.stereotype.Service;
74 @RequiredArgsConstructor
75 public class CpsDataPersistenceServiceImpl implements CpsDataPersistenceService {
77 private final DataspaceRepository dataspaceRepository;
78 private final AnchorRepository anchorRepository;
79 private final FragmentRepository fragmentRepository;
80 private final JsonObjectMapper jsonObjectMapper;
81 private final SessionManager sessionManager;
82 private final FragmentNativeRepository fragmentNativeRepositoryImpl;
84 private static final String REG_EX_FOR_OPTIONAL_LIST_INDEX = "(\\[@[\\s\\S]+?]){0,1})";
87 public void addChildDataNode(final String dataspaceName, final String anchorName, final String parentNodeXpath,
88 final DataNode newChildDataNode) {
89 addNewChildDataNode(dataspaceName, anchorName, parentNodeXpath, newChildDataNode);
93 public void addChildDataNodes(final String dataspaceName, final String anchorName,
94 final String parentNodeXpath, final Collection<DataNode> dataNodes) {
95 addChildrenDataNodes(dataspaceName, anchorName, parentNodeXpath, dataNodes);
99 public void addListElements(final String dataspaceName, final String anchorName, final String parentNodeXpath,
100 final Collection<DataNode> newListElements) {
101 addChildrenDataNodes(dataspaceName, anchorName, parentNodeXpath, newListElements);
105 public void addMultipleLists(final String dataspaceName, final String anchorName, final String parentNodeXpath,
106 final Collection<Collection<DataNode>> newLists) {
107 final Collection<String> failedXpaths = new HashSet<>();
108 newLists.forEach(newList -> {
110 addChildrenDataNodes(dataspaceName, anchorName, parentNodeXpath, newList);
111 } catch (final AlreadyDefinedExceptionBatch e) {
112 failedXpaths.addAll(e.getAlreadyDefinedXpaths());
116 if (!failedXpaths.isEmpty()) {
117 throw new AlreadyDefinedExceptionBatch(failedXpaths);
122 private void addNewChildDataNode(final String dataspaceName, final String anchorName,
123 final String parentNodeXpath, final DataNode newChild) {
124 final FragmentEntity parentFragmentEntity =
125 getFragmentWithoutDescendantsByXpath(dataspaceName, anchorName, parentNodeXpath);
126 final FragmentEntity newChildAsFragmentEntity =
127 convertToFragmentWithAllDescendants(parentFragmentEntity.getDataspace(),
128 parentFragmentEntity.getAnchor(), newChild);
129 newChildAsFragmentEntity.setParentId(parentFragmentEntity.getId());
131 fragmentRepository.save(newChildAsFragmentEntity);
132 } catch (final DataIntegrityViolationException e) {
133 throw AlreadyDefinedException.forDataNode(newChild.getXpath(), anchorName, e);
138 private void addChildrenDataNodes(final String dataspaceName, final String anchorName, final String parentNodeXpath,
139 final Collection<DataNode> newChildren) {
140 final FragmentEntity parentFragmentEntity =
141 getFragmentWithoutDescendantsByXpath(dataspaceName, anchorName, parentNodeXpath);
142 final List<FragmentEntity> fragmentEntities = new ArrayList<>(newChildren.size());
144 newChildren.forEach(newChildAsDataNode -> {
145 final FragmentEntity newChildAsFragmentEntity =
146 convertToFragmentWithAllDescendants(parentFragmentEntity.getDataspace(),
147 parentFragmentEntity.getAnchor(), newChildAsDataNode);
148 newChildAsFragmentEntity.setParentId(parentFragmentEntity.getId());
149 fragmentEntities.add(newChildAsFragmentEntity);
151 fragmentRepository.saveAll(fragmentEntities);
152 } catch (final DataIntegrityViolationException e) {
153 log.warn("Exception occurred : {} , While saving : {} children, retrying using individual save operations",
154 e, fragmentEntities.size());
155 retrySavingEachChildIndividually(dataspaceName, anchorName, parentNodeXpath, newChildren);
159 private void retrySavingEachChildIndividually(final String dataspaceName, final String anchorName,
160 final String parentNodeXpath,
161 final Collection<DataNode> newChildren) {
162 final Collection<String> failedXpaths = new HashSet<>();
163 for (final DataNode newChild : newChildren) {
165 addNewChildDataNode(dataspaceName, anchorName, parentNodeXpath, newChild);
166 } catch (final AlreadyDefinedException e) {
167 failedXpaths.add(newChild.getXpath());
170 if (!failedXpaths.isEmpty()) {
171 throw new AlreadyDefinedExceptionBatch(failedXpaths);
176 public void storeDataNode(final String dataspaceName, final String anchorName, final DataNode dataNode) {
177 storeDataNodes(dataspaceName, anchorName, Collections.singletonList(dataNode));
181 public void storeDataNodes(final String dataspaceName, final String anchorName,
182 final Collection<DataNode> dataNodes) {
183 final DataspaceEntity dataspaceEntity = dataspaceRepository.getByName(dataspaceName);
184 final AnchorEntity anchorEntity = anchorRepository.getByDataspaceAndName(dataspaceEntity, anchorName);
185 final List<FragmentEntity> fragmentEntities = new ArrayList<>(dataNodes.size());
187 for (final DataNode dataNode: dataNodes) {
188 final FragmentEntity fragmentEntity = convertToFragmentWithAllDescendants(dataspaceEntity, anchorEntity,
190 fragmentEntities.add(fragmentEntity);
192 fragmentRepository.saveAll(fragmentEntities);
193 } catch (final DataIntegrityViolationException exception) {
194 log.warn("Exception occurred : {} , While saving : {} data nodes, Retrying saving data nodes individually",
195 exception, dataNodes.size());
196 storeDataNodesIndividually(dataspaceName, anchorName, dataNodes);
200 private void storeDataNodesIndividually(final String dataspaceName, final String anchorName,
201 final Collection<DataNode> dataNodes) {
202 final DataspaceEntity dataspaceEntity = dataspaceRepository.getByName(dataspaceName);
203 final AnchorEntity anchorEntity = anchorRepository.getByDataspaceAndName(dataspaceEntity, anchorName);
204 final Collection<String> failedXpaths = new HashSet<>();
205 for (final DataNode dataNode: dataNodes) {
207 final FragmentEntity fragmentEntity = convertToFragmentWithAllDescendants(dataspaceEntity, anchorEntity,
209 fragmentRepository.save(fragmentEntity);
210 } catch (final DataIntegrityViolationException e) {
211 failedXpaths.add(dataNode.getXpath());
214 if (!failedXpaths.isEmpty()) {
215 throw new AlreadyDefinedExceptionBatch(failedXpaths);
220 * Convert DataNode object into Fragment and places the result in the fragments placeholder. Performs same action
221 * for all DataNode children recursively.
223 * @param dataspaceEntity dataspace
224 * @param anchorEntity anchorEntity
225 * @param dataNodeToBeConverted dataNode
226 * @return a Fragment built from current DataNode
228 private FragmentEntity convertToFragmentWithAllDescendants(final DataspaceEntity dataspaceEntity,
229 final AnchorEntity anchorEntity,
230 final DataNode dataNodeToBeConverted) {
231 final FragmentEntity parentFragment = toFragmentEntity(dataspaceEntity, anchorEntity, dataNodeToBeConverted);
232 final Builder<FragmentEntity> childFragmentsImmutableSetBuilder = ImmutableSet.builder();
233 for (final DataNode childDataNode : dataNodeToBeConverted.getChildDataNodes()) {
234 final FragmentEntity childFragment =
235 convertToFragmentWithAllDescendants(parentFragment.getDataspace(), parentFragment.getAnchor(),
237 childFragmentsImmutableSetBuilder.add(childFragment);
239 parentFragment.setChildFragments(childFragmentsImmutableSetBuilder.build());
240 return parentFragment;
243 private FragmentEntity toFragmentEntity(final DataspaceEntity dataspaceEntity,
244 final AnchorEntity anchorEntity, final DataNode dataNode) {
245 return FragmentEntity.builder()
246 .dataspace(dataspaceEntity)
247 .anchor(anchorEntity)
248 .xpath(dataNode.getXpath())
249 .attributes(jsonObjectMapper.asJsonString(dataNode.getLeaves()))
254 public DataNode getDataNode(final String dataspaceName, final String anchorName, final String xpath,
255 final FetchDescendantsOption fetchDescendantsOption) {
256 final FragmentEntity fragmentEntity = getFragmentByXpath(dataspaceName, anchorName, xpath,
257 fetchDescendantsOption);
258 return toDataNode(fragmentEntity, fetchDescendantsOption);
262 public Collection<DataNode> getDataNodes(final String dataspaceName, final String anchorName,
263 final Collection<String> xpaths,
264 final FetchDescendantsOption fetchDescendantsOption) {
265 final DataspaceEntity dataspaceEntity = dataspaceRepository.getByName(dataspaceName);
266 final AnchorEntity anchorEntity = anchorRepository.getByDataspaceAndName(dataspaceEntity, anchorName);
268 final Collection<String> nonRootXpaths = new HashSet<>(xpaths);
269 final boolean haveRootXpath = nonRootXpaths.removeIf(CpsDataPersistenceServiceImpl::isRootXpath);
271 final Collection<String> normalizedXpaths = new HashSet<>(nonRootXpaths.size());
272 for (final String xpath : nonRootXpaths) {
274 normalizedXpaths.add(CpsPathUtil.getNormalizedXpath(xpath));
275 } catch (final PathParsingException e) {
276 log.warn("Error parsing xpath \"{}\" in getDataNodes: {}", xpath, e.getMessage());
279 final Collection<FragmentEntity> fragmentEntities =
280 new HashSet<>(fragmentRepository.findByAnchorAndMultipleCpsPaths(anchorEntity.getId(), normalizedXpaths));
283 final List<FragmentExtract> fragmentExtracts = fragmentRepository.getTopLevelFragments(dataspaceEntity,
285 fragmentEntities.addAll(FragmentEntityArranger.toFragmentEntityTrees(anchorEntity, fragmentExtracts));
288 return toDataNodes(fragmentEntities, fetchDescendantsOption);
291 private FragmentEntity getFragmentWithoutDescendantsByXpath(final String dataspaceName,
292 final String anchorName,
293 final String xpath) {
294 return getFragmentByXpath(dataspaceName, anchorName, xpath, FetchDescendantsOption.OMIT_DESCENDANTS);
297 private FragmentEntity getFragmentByXpath(final String dataspaceName, final String anchorName,
298 final String xpath, final FetchDescendantsOption fetchDescendantsOption) {
299 final DataspaceEntity dataspaceEntity = dataspaceRepository.getByName(dataspaceName);
300 final AnchorEntity anchorEntity = anchorRepository.getByDataspaceAndName(dataspaceEntity, anchorName);
301 final FragmentEntity fragmentEntity;
302 if (isRootXpath(xpath)) {
303 final List<FragmentExtract> fragmentExtracts = fragmentRepository.getTopLevelFragments(dataspaceEntity,
305 fragmentEntity = FragmentEntityArranger.toFragmentEntityTrees(anchorEntity, fragmentExtracts)
306 .stream().findFirst().orElse(null);
308 final String normalizedXpath = getNormalizedXpath(xpath);
309 if (FetchDescendantsOption.OMIT_DESCENDANTS.equals(fetchDescendantsOption)) {
311 fragmentRepository.getByDataspaceAndAnchorAndXpath(dataspaceEntity, anchorEntity, normalizedXpath);
313 fragmentEntity = buildFragmentEntitiesFromFragmentExtracts(anchorEntity, normalizedXpath)
314 .stream().findFirst().orElse(null);
317 if (fragmentEntity == null) {
318 throw new DataNodeNotFoundException(dataspaceEntity.getName(), anchorEntity.getName(), xpath);
320 return fragmentEntity;
324 private Collection<FragmentEntity> buildFragmentEntitiesFromFragmentExtracts(final AnchorEntity anchorEntity,
325 final String normalizedXpath) {
326 final List<FragmentExtract> fragmentExtracts =
327 fragmentRepository.findByAnchorIdAndParentXpath(anchorEntity.getId(), normalizedXpath);
328 log.debug("Fetched {} fragment entities by anchor {} and cps path {}.",
329 fragmentExtracts.size(), anchorEntity.getName(), normalizedXpath);
330 return FragmentEntityArranger.toFragmentEntityTrees(anchorEntity, fragmentExtracts);
335 public List<DataNode> queryDataNodes(final String dataspaceName, final String anchorName, final String cpsPath,
336 final FetchDescendantsOption fetchDescendantsOption) {
337 final DataspaceEntity dataspaceEntity = dataspaceRepository.getByName(dataspaceName);
338 final AnchorEntity anchorEntity = anchorRepository.getByDataspaceAndName(dataspaceEntity, anchorName);
339 final CpsPathQuery cpsPathQuery;
341 cpsPathQuery = CpsPathUtil.getCpsPathQuery(cpsPath);
342 } catch (final PathParsingException e) {
343 throw new CpsPathException(e.getMessage());
346 Collection<FragmentEntity> fragmentEntities;
347 if (canUseRegexQuickFind(fetchDescendantsOption, cpsPathQuery)) {
348 return getDataNodesUsingRegexQuickFind(fetchDescendantsOption, anchorEntity, cpsPathQuery);
350 fragmentEntities = fragmentRepository.findByAnchorAndCpsPath(anchorEntity.getId(), cpsPathQuery);
351 if (cpsPathQuery.hasAncestorAxis()) {
352 fragmentEntities = getAncestorFragmentEntities(anchorEntity.getId(), cpsPathQuery, fragmentEntities);
354 return createDataNodesFromProxiedFragmentEntities(fetchDescendantsOption, anchorEntity, fragmentEntities);
357 private static boolean canUseRegexQuickFind(final FetchDescendantsOption fetchDescendantsOption,
358 final CpsPathQuery cpsPathQuery) {
359 return fetchDescendantsOption.equals(FetchDescendantsOption.INCLUDE_ALL_DESCENDANTS)
360 && !cpsPathQuery.hasLeafConditions()
361 && !cpsPathQuery.hasTextFunctionCondition();
364 private List<DataNode> getDataNodesUsingRegexQuickFind(final FetchDescendantsOption fetchDescendantsOption,
365 final AnchorEntity anchorEntity,
366 final CpsPathQuery cpsPathQuery) {
367 Collection<FragmentEntity> fragmentEntities;
368 final String xpathRegex = FragmentQueryBuilder.getXpathSqlRegex(cpsPathQuery, true);
369 final List<FragmentExtract> fragmentExtracts =
370 fragmentRepository.quickFindWithDescendants(anchorEntity.getId(), xpathRegex);
371 fragmentEntities = FragmentEntityArranger.toFragmentEntityTrees(anchorEntity, fragmentExtracts);
372 if (cpsPathQuery.hasAncestorAxis()) {
373 fragmentEntities = getAncestorFragmentEntities(anchorEntity.getId(), cpsPathQuery, fragmentEntities);
375 return createDataNodesFromFragmentEntities(fetchDescendantsOption, fragmentEntities);
378 private Collection<FragmentEntity> getAncestorFragmentEntities(final int anchorId,
379 final CpsPathQuery cpsPathQuery,
380 final Collection<FragmentEntity> fragmentEntities) {
381 final Collection<String> ancestorXpaths = processAncestorXpath(fragmentEntities, cpsPathQuery);
382 return ancestorXpaths.isEmpty() ? Collections.emptyList()
383 : fragmentRepository.findByAnchorAndMultipleCpsPaths(anchorId, ancestorXpaths);
386 private List<DataNode> createDataNodesFromProxiedFragmentEntities(
387 final FetchDescendantsOption fetchDescendantsOption,
388 final AnchorEntity anchorEntity,
389 final Collection<FragmentEntity> proxiedFragmentEntities) {
390 final List<DataNode> dataNodes = new ArrayList<>(proxiedFragmentEntities.size());
391 for (final FragmentEntity proxiedFragmentEntity : proxiedFragmentEntities) {
392 if (FetchDescendantsOption.OMIT_DESCENDANTS.equals(fetchDescendantsOption)) {
393 dataNodes.add(toDataNode(proxiedFragmentEntity, fetchDescendantsOption));
395 final String normalizedXpath = getNormalizedXpath(proxiedFragmentEntity.getXpath());
396 final Collection<FragmentEntity> unproxiedFragmentEntities =
397 buildFragmentEntitiesFromFragmentExtracts(anchorEntity, normalizedXpath);
398 for (final FragmentEntity unproxiedFragmentEntity : unproxiedFragmentEntities) {
399 dataNodes.add(toDataNode(unproxiedFragmentEntity, fetchDescendantsOption));
403 return Collections.unmodifiableList(dataNodes);
406 private List<DataNode> createDataNodesFromFragmentEntities(final FetchDescendantsOption fetchDescendantsOption,
407 final Collection<FragmentEntity> fragmentEntities) {
408 final List<DataNode> dataNodes = new ArrayList<>(fragmentEntities.size());
409 for (final FragmentEntity fragmentEntity : fragmentEntities) {
410 dataNodes.add(toDataNode(fragmentEntity, fetchDescendantsOption));
412 return Collections.unmodifiableList(dataNodes);
415 private static String getNormalizedXpath(final String xpathSource) {
416 final String normalizedXpath;
418 normalizedXpath = CpsPathUtil.getNormalizedXpath(xpathSource);
419 } catch (final PathParsingException e) {
420 throw new CpsPathException(e.getMessage());
422 return normalizedXpath;
426 public String startSession() {
427 return sessionManager.startSession();
431 public void closeSession(final String sessionId) {
432 sessionManager.closeSession(sessionId, SessionManager.WITH_COMMIT);
436 public void lockAnchor(final String sessionId, final String dataspaceName,
437 final String anchorName, final Long timeoutInMilliseconds) {
438 sessionManager.lockAnchor(sessionId, dataspaceName, anchorName, timeoutInMilliseconds);
441 private static Set<String> processAncestorXpath(final Collection<FragmentEntity> fragmentEntities,
442 final CpsPathQuery cpsPathQuery) {
443 final Set<String> ancestorXpath = new HashSet<>();
444 final Pattern pattern =
445 Pattern.compile("([\\s\\S]*\\/" + Pattern.quote(cpsPathQuery.getAncestorSchemaNodeIdentifier())
446 + REG_EX_FOR_OPTIONAL_LIST_INDEX + "\\/[\\s\\S]*");
447 for (final FragmentEntity fragmentEntity : fragmentEntities) {
448 final Matcher matcher = pattern.matcher(fragmentEntity.getXpath());
449 if (matcher.matches()) {
450 ancestorXpath.add(matcher.group(1));
453 return ancestorXpath;
456 private DataNode toDataNode(final FragmentEntity fragmentEntity,
457 final FetchDescendantsOption fetchDescendantsOption) {
458 final List<DataNode> childDataNodes = getChildDataNodes(fragmentEntity, fetchDescendantsOption);
459 Map<String, Serializable> leaves = new HashMap<>();
460 if (fragmentEntity.getAttributes() != null) {
461 leaves = jsonObjectMapper.convertJsonString(fragmentEntity.getAttributes(), Map.class);
463 return new DataNodeBuilder()
464 .withXpath(fragmentEntity.getXpath())
466 .withChildDataNodes(childDataNodes).build();
469 private Collection<DataNode> toDataNodes(final Collection<FragmentEntity> fragmentEntities,
470 final FetchDescendantsOption fetchDescendantsOption) {
471 final Collection<DataNode> dataNodes = new ArrayList<>(fragmentEntities.size());
472 for (final FragmentEntity fragmentEntity : fragmentEntities) {
473 dataNodes.add(toDataNode(fragmentEntity, fetchDescendantsOption));
478 private List<DataNode> getChildDataNodes(final FragmentEntity fragmentEntity,
479 final FetchDescendantsOption fetchDescendantsOption) {
480 if (fetchDescendantsOption.hasNext()) {
481 return fragmentEntity.getChildFragments().stream()
482 .map(childFragmentEntity -> toDataNode(childFragmentEntity, fetchDescendantsOption.next()))
483 .collect(Collectors.toList());
485 return Collections.emptyList();
489 public void updateDataLeaves(final String dataspaceName, final String anchorName, final String xpath,
490 final Map<String, Serializable> updateLeaves) {
491 final FragmentEntity fragmentEntity = getFragmentWithoutDescendantsByXpath(dataspaceName, anchorName, xpath);
492 final String currentLeavesAsString = fragmentEntity.getAttributes();
493 final String mergedLeaves = mergeLeaves(updateLeaves, currentLeavesAsString);
494 fragmentEntity.setAttributes(mergedLeaves);
495 fragmentRepository.save(fragmentEntity);
499 public void updateDataNodeAndDescendants(final String dataspaceName, final String anchorName,
500 final DataNode dataNode) {
501 final FragmentEntity fragmentEntity =
502 getFragmentWithoutDescendantsByXpath(dataspaceName, anchorName, dataNode.getXpath());
503 updateFragmentEntityAndDescendantsWithDataNode(fragmentEntity, dataNode);
505 fragmentRepository.save(fragmentEntity);
506 } catch (final StaleStateException staleStateException) {
507 throw new ConcurrencyException("Concurrent Transactions",
508 String.format("dataspace :'%s', Anchor : '%s' and xpath: '%s' is updated by another transaction.",
509 dataspaceName, anchorName, dataNode.getXpath()));
514 public void updateDataNodesAndDescendants(final String dataspaceName,
515 final String anchorName,
516 final List<DataNode> dataNodes) {
518 final Map<DataNode, FragmentEntity> dataNodeFragmentEntityMap = dataNodes.stream()
519 .collect(Collectors.toMap(
520 dataNode -> dataNode,
522 getFragmentWithoutDescendantsByXpath(dataspaceName, anchorName, dataNode.getXpath())));
523 dataNodeFragmentEntityMap.forEach(
524 (dataNode, fragmentEntity) -> updateFragmentEntityAndDescendantsWithDataNode(fragmentEntity, dataNode));
526 fragmentRepository.saveAll(dataNodeFragmentEntityMap.values());
527 } catch (final StaleStateException staleStateException) {
528 retryUpdateDataNodesIndividually(dataspaceName, anchorName, dataNodeFragmentEntityMap.values());
532 private void retryUpdateDataNodesIndividually(final String dataspaceName, final String anchorName,
533 final Collection<FragmentEntity> fragmentEntities) {
534 final Collection<String> failedXpaths = new HashSet<>();
536 fragmentEntities.forEach(dataNodeFragment -> {
538 fragmentRepository.save(dataNodeFragment);
539 } catch (final StaleStateException e) {
540 failedXpaths.add(dataNodeFragment.getXpath());
544 if (!failedXpaths.isEmpty()) {
545 final String failedXpathsConcatenated = String.join(",", failedXpaths);
546 throw new ConcurrencyException("Concurrent Transactions", String.format(
547 "DataNodes : %s in Dataspace :'%s' with Anchor : '%s' are updated by another transaction.",
548 failedXpathsConcatenated, dataspaceName, anchorName));
552 private void updateFragmentEntityAndDescendantsWithDataNode(final FragmentEntity existingFragmentEntity,
553 final DataNode newDataNode) {
555 existingFragmentEntity.setAttributes(jsonObjectMapper.asJsonString(newDataNode.getLeaves()));
557 final Map<String, FragmentEntity> existingChildrenByXpath = existingFragmentEntity.getChildFragments().stream()
558 .collect(Collectors.toMap(FragmentEntity::getXpath, childFragmentEntity -> childFragmentEntity));
560 final Collection<FragmentEntity> updatedChildFragments = new HashSet<>();
562 for (final DataNode newDataNodeChild : newDataNode.getChildDataNodes()) {
563 final FragmentEntity childFragment;
564 if (isNewDataNode(newDataNodeChild, existingChildrenByXpath)) {
565 childFragment = convertToFragmentWithAllDescendants(
566 existingFragmentEntity.getDataspace(), existingFragmentEntity.getAnchor(), newDataNodeChild);
568 childFragment = existingChildrenByXpath.get(newDataNodeChild.getXpath());
569 updateFragmentEntityAndDescendantsWithDataNode(childFragment, newDataNodeChild);
571 updatedChildFragments.add(childFragment);
574 existingFragmentEntity.getChildFragments().clear();
575 existingFragmentEntity.getChildFragments().addAll(updatedChildFragments);
580 public void replaceListContent(final String dataspaceName, final String anchorName, final String parentNodeXpath,
581 final Collection<DataNode> newListElements) {
582 final FragmentEntity parentEntity =
583 getFragmentWithoutDescendantsByXpath(dataspaceName, anchorName, parentNodeXpath);
584 final String listElementXpathPrefix = getListElementXpathPrefix(newListElements);
585 final Map<String, FragmentEntity> existingListElementFragmentEntitiesByXPath =
586 extractListElementFragmentEntitiesByXPath(parentEntity.getChildFragments(), listElementXpathPrefix);
587 deleteListElements(parentEntity.getChildFragments(), existingListElementFragmentEntitiesByXPath);
588 final Set<FragmentEntity> updatedChildFragmentEntities = new HashSet<>();
589 for (final DataNode newListElement : newListElements) {
590 final FragmentEntity existingListElementEntity =
591 existingListElementFragmentEntitiesByXPath.get(newListElement.getXpath());
592 final FragmentEntity entityToBeAdded = getFragmentForReplacement(parentEntity, newListElement,
593 existingListElementEntity);
595 updatedChildFragmentEntities.add(entityToBeAdded);
597 parentEntity.getChildFragments().addAll(updatedChildFragmentEntities);
598 fragmentRepository.save(parentEntity);
603 public void deleteDataNodes(final String dataspaceName, final String anchorName) {
604 final DataspaceEntity dataspaceEntity = dataspaceRepository.getByName(dataspaceName);
605 anchorRepository.findByDataspaceAndName(dataspaceEntity, anchorName)
607 anchorEntity -> fragmentRepository.deleteByAnchorIn(Set.of(anchorEntity)));
612 public void deleteListDataNode(final String dataspaceName, final String anchorName,
613 final String targetXpath) {
614 deleteDataNode(dataspaceName, anchorName, targetXpath, true);
619 public void deleteDataNode(final String dataspaceName, final String anchorName, final String targetXpath) {
620 deleteDataNode(dataspaceName, anchorName, targetXpath, false);
623 private void deleteDataNode(final String dataspaceName, final String anchorName, final String targetXpath,
624 final boolean onlySupportListNodeDeletion) {
625 final String parentNodeXpath;
626 FragmentEntity parentFragmentEntity = null;
627 boolean targetDeleted;
628 if (isRootXpath(targetXpath)) {
629 deleteDataNodes(dataspaceName, anchorName);
630 targetDeleted = true;
632 if (isRootContainerNodeXpath(targetXpath)) {
633 parentNodeXpath = targetXpath;
635 parentNodeXpath = CpsPathUtil.getNormalizedParentXpath(targetXpath);
637 parentFragmentEntity = getFragmentWithoutDescendantsByXpath(dataspaceName, anchorName, parentNodeXpath);
638 if (CpsPathUtil.isPathToListElement(targetXpath)) {
639 targetDeleted = deleteDataNode(parentFragmentEntity, targetXpath);
641 targetDeleted = deleteAllListElements(parentFragmentEntity, targetXpath);
642 final boolean tryToDeleteDataNode = !targetDeleted && !onlySupportListNodeDeletion;
643 if (tryToDeleteDataNode) {
644 targetDeleted = deleteDataNode(parentFragmentEntity, targetXpath);
648 if (!targetDeleted) {
649 final String additionalInformation = onlySupportListNodeDeletion
650 ? "The target is probably not a List." : "";
651 throw new DataNodeNotFoundException(parentFragmentEntity.getDataspace().getName(),
652 parentFragmentEntity.getAnchor().getName(), targetXpath, additionalInformation);
656 private boolean deleteDataNode(final FragmentEntity parentFragmentEntity, final String targetXpath) {
657 final String normalizedTargetXpath = CpsPathUtil.getNormalizedXpath(targetXpath);
658 if (parentFragmentEntity.getXpath().equals(normalizedTargetXpath)) {
659 fragmentNativeRepositoryImpl.deleteFragmentEntity(parentFragmentEntity.getId());
662 if (parentFragmentEntity.getChildFragments()
663 .removeIf(fragment -> fragment.getXpath().equals(normalizedTargetXpath))) {
664 fragmentRepository.save(parentFragmentEntity);
670 private boolean deleteAllListElements(final FragmentEntity parentFragmentEntity, final String listXpath) {
671 final String normalizedListXpath = CpsPathUtil.getNormalizedXpath(listXpath);
672 final String deleteTargetXpathPrefix = normalizedListXpath + "[";
673 if (parentFragmentEntity.getChildFragments()
674 .removeIf(fragment -> fragment.getXpath().startsWith(deleteTargetXpathPrefix))) {
675 fragmentRepository.save(parentFragmentEntity);
681 private static void deleteListElements(
682 final Collection<FragmentEntity> fragmentEntities,
683 final Map<String, FragmentEntity> existingListElementFragmentEntitiesByXPath) {
684 fragmentEntities.removeAll(existingListElementFragmentEntitiesByXPath.values());
687 private static String getListElementXpathPrefix(final Collection<DataNode> newListElements) {
688 if (newListElements.isEmpty()) {
689 throw new CpsAdminException("Invalid list replacement",
690 "Cannot replace list elements with empty collection");
692 final String firstChildNodeXpath = newListElements.iterator().next().getXpath();
693 return firstChildNodeXpath.substring(0, firstChildNodeXpath.lastIndexOf('[') + 1);
696 private FragmentEntity getFragmentForReplacement(final FragmentEntity parentEntity,
697 final DataNode newListElement,
698 final FragmentEntity existingListElementEntity) {
699 if (existingListElementEntity == null) {
700 return convertToFragmentWithAllDescendants(
701 parentEntity.getDataspace(), parentEntity.getAnchor(), newListElement);
703 if (newListElement.getChildDataNodes().isEmpty()) {
704 copyAttributesFromNewListElement(existingListElementEntity, newListElement);
705 existingListElementEntity.getChildFragments().clear();
707 updateFragmentEntityAndDescendantsWithDataNode(existingListElementEntity, newListElement);
709 return existingListElementEntity;
712 private static boolean isNewDataNode(final DataNode replacementDataNode,
713 final Map<String, FragmentEntity> existingListElementsByXpath) {
714 return !existingListElementsByXpath.containsKey(replacementDataNode.getXpath());
717 private static boolean isRootContainerNodeXpath(final String xpath) {
718 return 0 == xpath.lastIndexOf('/');
721 private void copyAttributesFromNewListElement(final FragmentEntity existingListElementEntity,
722 final DataNode newListElement) {
723 final FragmentEntity replacementFragmentEntity =
724 FragmentEntity.builder().attributes(jsonObjectMapper.asJsonString(
725 newListElement.getLeaves())).build();
726 existingListElementEntity.setAttributes(replacementFragmentEntity.getAttributes());
729 private static Map<String, FragmentEntity> extractListElementFragmentEntitiesByXPath(
730 final Set<FragmentEntity> childEntities, final String listElementXpathPrefix) {
731 return childEntities.stream()
732 .filter(fragmentEntity -> fragmentEntity.getXpath().startsWith(listElementXpathPrefix))
733 .collect(Collectors.toMap(FragmentEntity::getXpath, fragmentEntity -> fragmentEntity));
736 private static boolean isRootXpath(final String xpath) {
737 return "/".equals(xpath) || "".equals(xpath);
740 private String mergeLeaves(final Map<String, Serializable> updateLeaves, final String currentLeavesAsString) {
741 final Map<String, Serializable> currentLeavesAsMap = currentLeavesAsString.isEmpty()
742 ? new HashMap<>() : jsonObjectMapper.convertJsonString(currentLeavesAsString, Map.class);
743 currentLeavesAsMap.putAll(updateLeaves);
744 if (currentLeavesAsMap.isEmpty()) {
747 return jsonObjectMapper.asJsonString(currentLeavesAsMap);