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) 2022-2023 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.base.Strings;
27 import com.google.common.collect.ImmutableSet;
28 import com.google.common.collect.ImmutableSet.Builder;
29 import io.micrometer.core.annotation.Timed;
30 import java.io.Serializable;
31 import java.util.ArrayList;
32 import java.util.Collection;
33 import java.util.Collections;
34 import java.util.HashMap;
35 import java.util.HashSet;
36 import java.util.List;
39 import java.util.function.Function;
40 import java.util.regex.Matcher;
41 import java.util.regex.Pattern;
42 import java.util.stream.Collectors;
43 import javax.transaction.Transactional;
44 import lombok.RequiredArgsConstructor;
45 import lombok.extern.slf4j.Slf4j;
46 import org.hibernate.StaleStateException;
47 import org.onap.cps.cpspath.parser.CpsPathQuery;
48 import org.onap.cps.cpspath.parser.CpsPathUtil;
49 import org.onap.cps.cpspath.parser.PathParsingException;
50 import org.onap.cps.spi.CpsDataPersistenceService;
51 import org.onap.cps.spi.FetchDescendantsOption;
52 import org.onap.cps.spi.entities.AnchorEntity;
53 import org.onap.cps.spi.entities.DataspaceEntity;
54 import org.onap.cps.spi.entities.FragmentEntity;
55 import org.onap.cps.spi.entities.FragmentEntityArranger;
56 import org.onap.cps.spi.entities.FragmentExtract;
57 import org.onap.cps.spi.exceptions.AlreadyDefinedException;
58 import org.onap.cps.spi.exceptions.AlreadyDefinedExceptionBatch;
59 import org.onap.cps.spi.exceptions.ConcurrencyException;
60 import org.onap.cps.spi.exceptions.CpsAdminException;
61 import org.onap.cps.spi.exceptions.CpsPathException;
62 import org.onap.cps.spi.exceptions.DataNodeNotFoundException;
63 import org.onap.cps.spi.exceptions.DataNodeNotFoundExceptionBatch;
64 import org.onap.cps.spi.model.DataNode;
65 import org.onap.cps.spi.model.DataNodeBuilder;
66 import org.onap.cps.spi.repository.AnchorRepository;
67 import org.onap.cps.spi.repository.DataspaceRepository;
68 import org.onap.cps.spi.repository.FragmentRepository;
69 import org.onap.cps.spi.utils.SessionManager;
70 import org.onap.cps.utils.JsonObjectMapper;
71 import org.springframework.dao.DataIntegrityViolationException;
72 import org.springframework.stereotype.Service;
76 @RequiredArgsConstructor
77 public class CpsDataPersistenceServiceImpl implements CpsDataPersistenceService {
79 private final DataspaceRepository dataspaceRepository;
80 private final AnchorRepository anchorRepository;
81 private final FragmentRepository fragmentRepository;
82 private final JsonObjectMapper jsonObjectMapper;
83 private final SessionManager sessionManager;
85 private static final String REG_EX_FOR_OPTIONAL_LIST_INDEX = "(\\[@.+?])?)";
86 private static final String QUERY_ACROSS_ANCHORS = null;
87 private static final AnchorEntity ALL_ANCHORS = null;
90 public void addChildDataNode(final String dataspaceName, final String anchorName, final String parentNodeXpath,
91 final DataNode newChildDataNode) {
92 final AnchorEntity anchorEntity = getAnchorEntity(dataspaceName, anchorName);
93 addNewChildDataNode(anchorEntity, parentNodeXpath, newChildDataNode);
97 public void addChildDataNodes(final String dataspaceName, final String anchorName,
98 final String parentNodeXpath, final Collection<DataNode> dataNodes) {
99 final AnchorEntity anchorEntity = getAnchorEntity(dataspaceName, anchorName);
100 addChildrenDataNodes(anchorEntity, parentNodeXpath, dataNodes);
104 public void addListElements(final String dataspaceName, final String anchorName, final String parentNodeXpath,
105 final Collection<DataNode> newListElements) {
106 final AnchorEntity anchorEntity = getAnchorEntity(dataspaceName, anchorName);
107 addChildrenDataNodes(anchorEntity, parentNodeXpath, newListElements);
111 public void addMultipleLists(final String dataspaceName, final String anchorName, final String parentNodeXpath,
112 final Collection<Collection<DataNode>> newLists) {
113 final AnchorEntity anchorEntity = getAnchorEntity(dataspaceName, anchorName);
114 final Collection<String> failedXpaths = new HashSet<>();
115 for (final Collection<DataNode> newList : newLists) {
117 addChildrenDataNodes(anchorEntity, parentNodeXpath, newList);
118 } catch (final AlreadyDefinedExceptionBatch e) {
119 failedXpaths.addAll(e.getAlreadyDefinedXpaths());
122 if (!failedXpaths.isEmpty()) {
123 throw new AlreadyDefinedExceptionBatch(failedXpaths);
127 private void addNewChildDataNode(final AnchorEntity anchorEntity, final String parentNodeXpath,
128 final DataNode newChild) {
129 final FragmentEntity parentFragmentEntity = getFragmentEntity(anchorEntity, parentNodeXpath);
130 final FragmentEntity newChildAsFragmentEntity = convertToFragmentWithAllDescendants(anchorEntity, newChild);
131 newChildAsFragmentEntity.setParentId(parentFragmentEntity.getId());
133 fragmentRepository.save(newChildAsFragmentEntity);
134 } catch (final DataIntegrityViolationException e) {
135 throw AlreadyDefinedException.forDataNode(newChild.getXpath(), anchorEntity.getName(), e);
139 private void addChildrenDataNodes(final AnchorEntity anchorEntity, final String parentNodeXpath,
140 final Collection<DataNode> newChildren) {
141 final FragmentEntity parentFragmentEntity = getFragmentEntity(anchorEntity, parentNodeXpath);
142 final List<FragmentEntity> fragmentEntities = new ArrayList<>(newChildren.size());
144 for (final DataNode newChildAsDataNode : newChildren) {
145 final FragmentEntity newChildAsFragmentEntity =
146 convertToFragmentWithAllDescendants(anchorEntity, newChildAsDataNode);
147 newChildAsFragmentEntity.setParentId(parentFragmentEntity.getId());
148 fragmentEntities.add(newChildAsFragmentEntity);
150 fragmentRepository.saveAll(fragmentEntities);
151 } catch (final DataIntegrityViolationException e) {
152 log.warn("Exception occurred : {} , While saving : {} children, retrying using individual save operations",
153 e, fragmentEntities.size());
154 retrySavingEachChildIndividually(anchorEntity, parentNodeXpath, newChildren);
158 private void retrySavingEachChildIndividually(final AnchorEntity anchorEntity, final String parentNodeXpath,
159 final Collection<DataNode> newChildren) {
160 final Collection<String> failedXpaths = new HashSet<>();
161 for (final DataNode newChild : newChildren) {
163 addNewChildDataNode(anchorEntity, parentNodeXpath, newChild);
164 } catch (final AlreadyDefinedException e) {
165 failedXpaths.add(newChild.getXpath());
168 if (!failedXpaths.isEmpty()) {
169 throw new AlreadyDefinedExceptionBatch(failedXpaths);
174 public void storeDataNodes(final String dataspaceName, final String anchorName,
175 final Collection<DataNode> dataNodes) {
176 final AnchorEntity anchorEntity = getAnchorEntity(dataspaceName, anchorName);
177 final List<FragmentEntity> fragmentEntities = new ArrayList<>(dataNodes.size());
179 for (final DataNode dataNode: dataNodes) {
180 final FragmentEntity fragmentEntity = convertToFragmentWithAllDescendants(anchorEntity, dataNode);
181 fragmentEntities.add(fragmentEntity);
183 fragmentRepository.saveAll(fragmentEntities);
184 } catch (final DataIntegrityViolationException exception) {
185 log.warn("Exception occurred : {} , While saving : {} data nodes, Retrying saving data nodes individually",
186 exception, dataNodes.size());
187 storeDataNodesIndividually(anchorEntity, dataNodes);
191 private void storeDataNodesIndividually(final AnchorEntity anchorEntity, final Collection<DataNode> dataNodes) {
192 final Collection<String> failedXpaths = new HashSet<>();
193 for (final DataNode dataNode: dataNodes) {
195 final FragmentEntity fragmentEntity = convertToFragmentWithAllDescendants(anchorEntity, dataNode);
196 fragmentRepository.save(fragmentEntity);
197 } catch (final DataIntegrityViolationException e) {
198 failedXpaths.add(dataNode.getXpath());
201 if (!failedXpaths.isEmpty()) {
202 throw new AlreadyDefinedExceptionBatch(failedXpaths);
207 * Convert DataNode object into Fragment and places the result in the fragments placeholder. Performs same action
208 * for all DataNode children recursively.
210 * @param anchorEntity anchorEntity
211 * @param dataNodeToBeConverted dataNode
212 * @return a Fragment built from current DataNode
214 private FragmentEntity convertToFragmentWithAllDescendants(final AnchorEntity anchorEntity,
215 final DataNode dataNodeToBeConverted) {
216 final FragmentEntity parentFragment = toFragmentEntity(anchorEntity, dataNodeToBeConverted);
217 final Builder<FragmentEntity> childFragmentsImmutableSetBuilder = ImmutableSet.builder();
218 for (final DataNode childDataNode : dataNodeToBeConverted.getChildDataNodes()) {
219 final FragmentEntity childFragment = convertToFragmentWithAllDescendants(anchorEntity, childDataNode);
220 childFragmentsImmutableSetBuilder.add(childFragment);
222 parentFragment.setChildFragments(childFragmentsImmutableSetBuilder.build());
223 return parentFragment;
226 private FragmentEntity toFragmentEntity(final AnchorEntity anchorEntity, final DataNode dataNode) {
227 return FragmentEntity.builder()
228 .dataspace(anchorEntity.getDataspace())
229 .anchor(anchorEntity)
230 .xpath(dataNode.getXpath())
231 .attributes(jsonObjectMapper.asJsonString(dataNode.getLeaves()))
236 @Timed(value = "cps.data.persistence.service.datanode.get",
237 description = "Time taken to get a data node")
238 public Collection<DataNode> getDataNodes(final String dataspaceName, final String anchorName,
240 final FetchDescendantsOption fetchDescendantsOption) {
241 final String targetXpath = getNormalizedXpath(xpath);
242 final Collection<DataNode> dataNodes = getDataNodesForMultipleXpaths(dataspaceName, anchorName,
243 Collections.singletonList(targetXpath), fetchDescendantsOption);
244 if (dataNodes.isEmpty()) {
245 throw new DataNodeNotFoundException(dataspaceName, anchorName, xpath);
251 @Timed(value = "cps.data.persistence.service.datanode.batch.get",
252 description = "Time taken to get data nodes")
253 public Collection<DataNode> getDataNodesForMultipleXpaths(final String dataspaceName, final String anchorName,
254 final Collection<String> xpaths,
255 final FetchDescendantsOption fetchDescendantsOption) {
256 final AnchorEntity anchorEntity = getAnchorEntity(dataspaceName, anchorName);
257 final Collection<FragmentEntity> fragmentEntities =
258 getFragmentEntities(anchorEntity, xpaths, fetchDescendantsOption);
259 return toDataNodes(fragmentEntities, fetchDescendantsOption);
262 private Collection<FragmentEntity> getFragmentEntities(final AnchorEntity anchorEntity,
263 final Collection<String> xpaths,
264 final FetchDescendantsOption fetchDescendantsOption) {
265 final Collection<String> nonRootXpaths = new HashSet<>(xpaths);
266 final boolean haveRootXpath = nonRootXpaths.removeIf(CpsDataPersistenceServiceImpl::isRootXpath);
268 final Collection<String> normalizedXpaths = new HashSet<>(nonRootXpaths.size());
269 for (final String xpath : nonRootXpaths) {
271 normalizedXpaths.add(CpsPathUtil.getNormalizedXpath(xpath));
272 } catch (final PathParsingException e) {
273 log.warn("Error parsing xpath \"{}\": {}", xpath, e.getMessage());
277 normalizedXpaths.addAll(fragmentRepository.findAllXpathByAnchorAndParentIdIsNull(anchorEntity));
280 final List<FragmentExtract> fragmentExtracts =
281 fragmentRepository.findExtractsWithDescendants(anchorEntity.getId(), normalizedXpaths,
282 fetchDescendantsOption.getDepth());
284 return FragmentEntityArranger.toFragmentEntityTrees(anchorEntity, fragmentExtracts);
287 private FragmentEntity getFragmentEntity(final AnchorEntity anchorEntity, final String xpath) {
288 final FragmentEntity fragmentEntity;
289 if (isRootXpath(xpath)) {
290 final List<FragmentExtract> fragmentExtracts = fragmentRepository.findAllExtractsByAnchor(anchorEntity);
291 fragmentEntity = FragmentEntityArranger.toFragmentEntityTrees(anchorEntity, fragmentExtracts)
292 .stream().findFirst().orElse(null);
294 fragmentEntity = fragmentRepository.getByAnchorAndXpath(anchorEntity, getNormalizedXpath(xpath));
296 if (fragmentEntity == null) {
297 throw new DataNodeNotFoundException(anchorEntity.getDataspace().getName(), anchorEntity.getName(), xpath);
299 return fragmentEntity;
303 @Timed(value = "cps.data.persistence.service.datanode.query",
304 description = "Time taken to query data nodes")
305 public List<DataNode> queryDataNodes(final String dataspaceName, final String anchorName, final String cpsPath,
306 final FetchDescendantsOption fetchDescendantsOption) {
307 final DataspaceEntity dataspaceEntity = dataspaceRepository.getByName(dataspaceName);
308 final AnchorEntity anchorEntity = Strings.isNullOrEmpty(anchorName) ? ALL_ANCHORS
309 : anchorRepository.getByDataspaceAndName(dataspaceEntity, anchorName);
310 final CpsPathQuery cpsPathQuery;
312 cpsPathQuery = CpsPathUtil.getCpsPathQuery(cpsPath);
313 } catch (final PathParsingException e) {
314 throw new CpsPathException(e.getMessage());
317 Collection<FragmentEntity> fragmentEntities;
318 if (anchorEntity == ALL_ANCHORS) {
319 fragmentEntities = fragmentRepository.findByDataspaceAndCpsPath(dataspaceEntity, cpsPathQuery);
321 fragmentEntities = fragmentRepository.findByAnchorAndCpsPath(anchorEntity, cpsPathQuery);
323 if (cpsPathQuery.hasAncestorAxis()) {
324 final Collection<String> ancestorXpaths = processAncestorXpath(fragmentEntities, cpsPathQuery);
325 if (anchorEntity == ALL_ANCHORS) {
326 fragmentEntities = fragmentRepository.findByDataspaceAndXpathIn(dataspaceEntity, ancestorXpaths);
328 fragmentEntities = fragmentRepository.findByAnchorAndXpathIn(anchorEntity, ancestorXpaths);
331 fragmentEntities = prefetchDescendantsForFragmentEntities(fetchDescendantsOption, anchorEntity,
333 return createDataNodesFromFragmentEntities(fetchDescendantsOption, fragmentEntities);
337 public List<DataNode> queryDataNodesAcrossAnchors(final String dataspaceName, final String cpsPath,
338 final FetchDescendantsOption fetchDescendantsOption) {
339 return queryDataNodes(dataspaceName, QUERY_ACROSS_ANCHORS, cpsPath, fetchDescendantsOption);
342 private Collection<FragmentEntity> prefetchDescendantsForFragmentEntities(
343 final FetchDescendantsOption fetchDescendantsOption,
344 final AnchorEntity anchorEntity,
345 final Collection<FragmentEntity> proxiedFragmentEntities) {
346 if (FetchDescendantsOption.OMIT_DESCENDANTS.equals(fetchDescendantsOption)) {
347 return proxiedFragmentEntities;
350 final List<Long> fragmentEntityIds = proxiedFragmentEntities.stream()
351 .map(FragmentEntity::getId).collect(Collectors.toList());
353 final List<FragmentExtract> fragmentExtracts =
354 fragmentRepository.findExtractsWithDescendantsByIds(fragmentEntityIds, fetchDescendantsOption.getDepth());
356 if (anchorEntity == ALL_ANCHORS) {
357 final Collection<Integer> anchorIds = fragmentExtracts.stream()
358 .map(FragmentExtract::getAnchorId).collect(Collectors.toSet());
359 final List<AnchorEntity> anchorEntities = anchorRepository.findAllById(anchorIds);
360 final Map<Integer, AnchorEntity> anchorEntityPerId = anchorEntities.stream()
361 .collect(Collectors.toMap(AnchorEntity::getId, Function.identity()));
362 return FragmentEntityArranger.toFragmentEntityTreesAcrossAnchors(anchorEntityPerId, fragmentExtracts);
364 return FragmentEntityArranger.toFragmentEntityTrees(anchorEntity, fragmentExtracts);
367 private List<DataNode> createDataNodesFromFragmentEntities(final FetchDescendantsOption fetchDescendantsOption,
368 final Collection<FragmentEntity> fragmentEntities) {
369 final List<DataNode> dataNodes = new ArrayList<>(fragmentEntities.size());
370 for (final FragmentEntity fragmentEntity : fragmentEntities) {
371 dataNodes.add(toDataNode(fragmentEntity, fetchDescendantsOption));
373 return Collections.unmodifiableList(dataNodes);
376 private static String getNormalizedXpath(final String xpathSource) {
377 if (isRootXpath(xpathSource)) {
381 return CpsPathUtil.getNormalizedXpath(xpathSource);
382 } catch (final PathParsingException e) {
383 throw new CpsPathException(e.getMessage());
388 public String startSession() {
389 return sessionManager.startSession();
393 public void closeSession(final String sessionId) {
394 sessionManager.closeSession(sessionId, SessionManager.WITH_COMMIT);
398 public void lockAnchor(final String sessionId, final String dataspaceName,
399 final String anchorName, final Long timeoutInMilliseconds) {
400 sessionManager.lockAnchor(sessionId, dataspaceName, anchorName, timeoutInMilliseconds);
403 private static Set<String> processAncestorXpath(final Collection<FragmentEntity> fragmentEntities,
404 final CpsPathQuery cpsPathQuery) {
405 final Set<String> ancestorXpath = new HashSet<>();
406 final Pattern pattern =
407 Pattern.compile("(.*/" + Pattern.quote(cpsPathQuery.getAncestorSchemaNodeIdentifier())
408 + REG_EX_FOR_OPTIONAL_LIST_INDEX + "/.*");
409 for (final FragmentEntity fragmentEntity : fragmentEntities) {
410 final Matcher matcher = pattern.matcher(fragmentEntity.getXpath());
411 if (matcher.matches()) {
412 ancestorXpath.add(matcher.group(1));
415 return ancestorXpath;
418 private DataNode toDataNode(final FragmentEntity fragmentEntity,
419 final FetchDescendantsOption fetchDescendantsOption) {
420 final List<DataNode> childDataNodes = getChildDataNodes(fragmentEntity, fetchDescendantsOption);
421 Map<String, Serializable> leaves = new HashMap<>();
422 if (fragmentEntity.getAttributes() != null) {
423 leaves = jsonObjectMapper.convertJsonString(fragmentEntity.getAttributes(), Map.class);
425 return new DataNodeBuilder()
426 .withXpath(fragmentEntity.getXpath())
428 .withDataspace(fragmentEntity.getAnchor().getDataspace().getName())
429 .withAnchor(fragmentEntity.getAnchor().getName())
430 .withChildDataNodes(childDataNodes).build();
433 private Collection<DataNode> toDataNodes(final Collection<FragmentEntity> fragmentEntities,
434 final FetchDescendantsOption fetchDescendantsOption) {
435 final Collection<DataNode> dataNodes = new ArrayList<>(fragmentEntities.size());
436 for (final FragmentEntity fragmentEntity : fragmentEntities) {
437 dataNodes.add(toDataNode(fragmentEntity, fetchDescendantsOption));
442 private List<DataNode> getChildDataNodes(final FragmentEntity fragmentEntity,
443 final FetchDescendantsOption fetchDescendantsOption) {
444 if (fetchDescendantsOption.hasNext()) {
445 return fragmentEntity.getChildFragments().stream()
446 .map(childFragmentEntity -> toDataNode(childFragmentEntity, fetchDescendantsOption.next()))
447 .collect(Collectors.toList());
449 return Collections.emptyList();
453 public void batchUpdateDataLeaves(final String dataspaceName, final String anchorName,
454 final Map<String, Map<String, Serializable>> updatedLeavesPerXPath) {
455 final AnchorEntity anchorEntity = getAnchorEntity(dataspaceName, anchorName);
457 final Collection<String> xpathsOfUpdatedLeaves = updatedLeavesPerXPath.keySet();
458 final Collection<FragmentEntity> fragmentEntities = getFragmentEntities(anchorEntity, xpathsOfUpdatedLeaves,
459 FetchDescendantsOption.INCLUDE_ALL_DESCENDANTS);
461 for (final FragmentEntity fragmentEntity : fragmentEntities) {
462 final Map<String, Serializable> updatedLeaves = updatedLeavesPerXPath.get(fragmentEntity.getXpath());
463 final String mergedLeaves = mergeLeaves(updatedLeaves, fragmentEntity.getAttributes());
464 fragmentEntity.setAttributes(mergedLeaves);
468 fragmentRepository.saveAll(fragmentEntities);
469 } catch (final StaleStateException staleStateException) {
470 retryUpdateDataNodesIndividually(anchorEntity, fragmentEntities);
475 public void updateDataNodesAndDescendants(final String dataspaceName, final String anchorName,
476 final Collection<DataNode> updatedDataNodes) {
477 final AnchorEntity anchorEntity = getAnchorEntity(dataspaceName, anchorName);
479 final Map<String, DataNode> xpathToUpdatedDataNode = updatedDataNodes.stream()
480 .collect(Collectors.toMap(DataNode::getXpath, dataNode -> dataNode));
482 final Collection<String> xpaths = xpathToUpdatedDataNode.keySet();
483 final Collection<FragmentEntity> existingFragmentEntities =
484 getFragmentEntities(anchorEntity, xpaths, FetchDescendantsOption.INCLUDE_ALL_DESCENDANTS);
486 for (final FragmentEntity existingFragmentEntity : existingFragmentEntities) {
487 final DataNode updatedDataNode = xpathToUpdatedDataNode.get(existingFragmentEntity.getXpath());
488 updateFragmentEntityAndDescendantsWithDataNode(existingFragmentEntity, updatedDataNode);
492 fragmentRepository.saveAll(existingFragmentEntities);
493 } catch (final StaleStateException staleStateException) {
494 retryUpdateDataNodesIndividually(anchorEntity, existingFragmentEntities);
498 private void retryUpdateDataNodesIndividually(final AnchorEntity anchorEntity,
499 final Collection<FragmentEntity> fragmentEntities) {
500 final Collection<String> failedXpaths = new HashSet<>();
501 for (final FragmentEntity dataNodeFragment : fragmentEntities) {
503 fragmentRepository.save(dataNodeFragment);
504 } catch (final StaleStateException e) {
505 failedXpaths.add(dataNodeFragment.getXpath());
508 if (!failedXpaths.isEmpty()) {
509 final String failedXpathsConcatenated = String.join(",", failedXpaths);
510 throw new ConcurrencyException("Concurrent Transactions", String.format(
511 "DataNodes : %s in Dataspace :'%s' with Anchor : '%s' are updated by another transaction.",
512 failedXpathsConcatenated, anchorEntity.getDataspace().getName(), anchorEntity.getName()));
516 private void updateFragmentEntityAndDescendantsWithDataNode(final FragmentEntity existingFragmentEntity,
517 final DataNode newDataNode) {
518 existingFragmentEntity.setAttributes(jsonObjectMapper.asJsonString(newDataNode.getLeaves()));
520 final Map<String, FragmentEntity> existingChildrenByXpath = existingFragmentEntity.getChildFragments().stream()
521 .collect(Collectors.toMap(FragmentEntity::getXpath, childFragmentEntity -> childFragmentEntity));
523 final Collection<FragmentEntity> updatedChildFragments = new HashSet<>();
524 for (final DataNode newDataNodeChild : newDataNode.getChildDataNodes()) {
525 final FragmentEntity childFragment;
526 if (isNewDataNode(newDataNodeChild, existingChildrenByXpath)) {
527 childFragment = convertToFragmentWithAllDescendants(existingFragmentEntity.getAnchor(),
530 childFragment = existingChildrenByXpath.get(newDataNodeChild.getXpath());
531 updateFragmentEntityAndDescendantsWithDataNode(childFragment, newDataNodeChild);
533 updatedChildFragments.add(childFragment);
536 existingFragmentEntity.getChildFragments().clear();
537 existingFragmentEntity.getChildFragments().addAll(updatedChildFragments);
542 public void replaceListContent(final String dataspaceName, final String anchorName, final String parentNodeXpath,
543 final Collection<DataNode> newListElements) {
544 final AnchorEntity anchorEntity = getAnchorEntity(dataspaceName, anchorName);
545 final FragmentEntity parentEntity = getFragmentEntity(anchorEntity, parentNodeXpath);
546 final String listElementXpathPrefix = getListElementXpathPrefix(newListElements);
547 final Map<String, FragmentEntity> existingListElementFragmentEntitiesByXPath =
548 extractListElementFragmentEntitiesByXPath(parentEntity.getChildFragments(), listElementXpathPrefix);
549 parentEntity.getChildFragments().removeAll(existingListElementFragmentEntitiesByXPath.values());
550 final Set<FragmentEntity> updatedChildFragmentEntities = new HashSet<>();
551 for (final DataNode newListElement : newListElements) {
552 final FragmentEntity existingListElementEntity =
553 existingListElementFragmentEntitiesByXPath.get(newListElement.getXpath());
554 final FragmentEntity entityToBeAdded = getFragmentForReplacement(parentEntity, newListElement,
555 existingListElementEntity);
556 updatedChildFragmentEntities.add(entityToBeAdded);
558 parentEntity.getChildFragments().addAll(updatedChildFragmentEntities);
559 fragmentRepository.save(parentEntity);
564 public void deleteDataNodes(final String dataspaceName, final String anchorName) {
565 final DataspaceEntity dataspaceEntity = dataspaceRepository.getByName(dataspaceName);
566 anchorRepository.findByDataspaceAndName(dataspaceEntity, anchorName)
567 .ifPresent(anchorEntity -> fragmentRepository.deleteByAnchorIn(Collections.singletonList(anchorEntity)));
572 public void deleteDataNodes(final String dataspaceName, final Collection<String> anchorNames) {
573 final DataspaceEntity dataspaceEntity = dataspaceRepository.getByName(dataspaceName);
574 final Collection<AnchorEntity> anchorEntities =
575 anchorRepository.findAllByDataspaceAndNameIn(dataspaceEntity, anchorNames);
576 fragmentRepository.deleteByAnchorIn(anchorEntities);
581 public void deleteDataNodes(final String dataspaceName, final String anchorName,
582 final Collection<String> xpathsToDelete) {
583 deleteDataNodes(dataspaceName, anchorName, xpathsToDelete, false);
586 private void deleteDataNodes(final String dataspaceName, final String anchorName,
587 final Collection<String> xpathsToDelete, final boolean onlySupportListDeletion) {
588 final boolean haveRootXpath = xpathsToDelete.stream().anyMatch(CpsDataPersistenceServiceImpl::isRootXpath);
590 deleteDataNodes(dataspaceName, anchorName);
594 final AnchorEntity anchorEntity = getAnchorEntity(dataspaceName, anchorName);
596 final Collection<String> deleteChecklist = new HashSet<>(xpathsToDelete.size());
597 for (final String xpath : xpathsToDelete) {
599 deleteChecklist.add(CpsPathUtil.getNormalizedXpath(xpath));
600 } catch (final PathParsingException e) {
601 log.warn("Error parsing xpath \"{}\": {}", xpath, e.getMessage());
605 final Collection<String> xpathsToExistingContainers =
606 fragmentRepository.findAllXpathByAnchorAndXpathIn(anchorEntity, deleteChecklist);
607 if (onlySupportListDeletion) {
608 final Collection<String> xpathsToExistingListElements = xpathsToExistingContainers.stream()
609 .filter(CpsPathUtil::isPathToListElement).collect(Collectors.toList());
610 deleteChecklist.removeAll(xpathsToExistingListElements);
612 deleteChecklist.removeAll(xpathsToExistingContainers);
615 final Collection<String> xpathsToExistingLists = deleteChecklist.stream()
616 .filter(xpath -> fragmentRepository.existsByAnchorAndXpathStartsWith(anchorEntity, xpath + "["))
617 .collect(Collectors.toList());
618 deleteChecklist.removeAll(xpathsToExistingLists);
620 if (!deleteChecklist.isEmpty()) {
621 throw new DataNodeNotFoundExceptionBatch(dataspaceName, anchorName, deleteChecklist);
624 fragmentRepository.deleteByAnchorIdAndXpaths(anchorEntity.getId(), xpathsToExistingContainers);
625 fragmentRepository.deleteListsByAnchorIdAndXpaths(anchorEntity.getId(), xpathsToExistingLists);
630 public void deleteListDataNode(final String dataspaceName, final String anchorName,
631 final String targetXpath) {
632 deleteDataNode(dataspaceName, anchorName, targetXpath, true);
637 public void deleteDataNode(final String dataspaceName, final String anchorName, final String targetXpath) {
638 deleteDataNode(dataspaceName, anchorName, targetXpath, false);
641 private void deleteDataNode(final String dataspaceName, final String anchorName, final String targetXpath,
642 final boolean onlySupportListNodeDeletion) {
643 final String normalizedXpath = getNormalizedXpath(targetXpath);
645 deleteDataNodes(dataspaceName, anchorName, Collections.singletonList(normalizedXpath),
646 onlySupportListNodeDeletion);
647 } catch (final DataNodeNotFoundExceptionBatch dataNodeNotFoundExceptionBatch) {
648 throw new DataNodeNotFoundException(dataspaceName, anchorName, targetXpath);
652 private static String getListElementXpathPrefix(final Collection<DataNode> newListElements) {
653 if (newListElements.isEmpty()) {
654 throw new CpsAdminException("Invalid list replacement",
655 "Cannot replace list elements with empty collection");
657 final String firstChildNodeXpath = newListElements.iterator().next().getXpath();
658 return firstChildNodeXpath.substring(0, firstChildNodeXpath.lastIndexOf('[') + 1);
661 private FragmentEntity getFragmentForReplacement(final FragmentEntity parentEntity,
662 final DataNode newListElement,
663 final FragmentEntity existingListElementEntity) {
664 if (existingListElementEntity == null) {
665 return convertToFragmentWithAllDescendants(parentEntity.getAnchor(), newListElement);
667 if (newListElement.getChildDataNodes().isEmpty()) {
668 copyAttributesFromNewListElement(existingListElementEntity, newListElement);
669 existingListElementEntity.getChildFragments().clear();
671 updateFragmentEntityAndDescendantsWithDataNode(existingListElementEntity, newListElement);
673 return existingListElementEntity;
676 private static boolean isNewDataNode(final DataNode replacementDataNode,
677 final Map<String, FragmentEntity> existingListElementsByXpath) {
678 return !existingListElementsByXpath.containsKey(replacementDataNode.getXpath());
681 private void copyAttributesFromNewListElement(final FragmentEntity existingListElementEntity,
682 final DataNode newListElement) {
683 final FragmentEntity replacementFragmentEntity =
684 FragmentEntity.builder().attributes(jsonObjectMapper.asJsonString(
685 newListElement.getLeaves())).build();
686 existingListElementEntity.setAttributes(replacementFragmentEntity.getAttributes());
689 private static Map<String, FragmentEntity> extractListElementFragmentEntitiesByXPath(
690 final Set<FragmentEntity> childEntities, final String listElementXpathPrefix) {
691 return childEntities.stream()
692 .filter(fragmentEntity -> fragmentEntity.getXpath().startsWith(listElementXpathPrefix))
693 .collect(Collectors.toMap(FragmentEntity::getXpath, fragmentEntity -> fragmentEntity));
696 private static boolean isRootXpath(final String xpath) {
697 return "/".equals(xpath) || "".equals(xpath);
700 private String mergeLeaves(final Map<String, Serializable> updateLeaves, final String currentLeavesAsString) {
701 Map<String, Serializable> currentLeavesAsMap = new HashMap<>();
702 if (currentLeavesAsString != null) {
703 currentLeavesAsMap = currentLeavesAsString.isEmpty()
704 ? new HashMap<>() : jsonObjectMapper.convertJsonString(currentLeavesAsString, Map.class);
705 currentLeavesAsMap.putAll(updateLeaves);
708 if (currentLeavesAsMap.isEmpty()) {
711 return jsonObjectMapper.asJsonString(currentLeavesAsMap);
714 private AnchorEntity getAnchorEntity(final String dataspaceName, final String anchorName) {
715 final DataspaceEntity dataspaceEntity = dataspaceRepository.getByName(dataspaceName);
716 return anchorRepository.getByDataspaceAndName(dataspaceEntity, anchorName);