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.regex.Matcher;
40 import java.util.regex.Pattern;
41 import java.util.stream.Collectors;
42 import javax.transaction.Transactional;
43 import lombok.RequiredArgsConstructor;
44 import lombok.extern.slf4j.Slf4j;
45 import org.hibernate.StaleStateException;
46 import org.onap.cps.cpspath.parser.CpsPathQuery;
47 import org.onap.cps.cpspath.parser.CpsPathUtil;
48 import org.onap.cps.cpspath.parser.PathParsingException;
49 import org.onap.cps.spi.CpsDataPersistenceService;
50 import org.onap.cps.spi.FetchDescendantsOption;
51 import org.onap.cps.spi.entities.AnchorEntity;
52 import org.onap.cps.spi.entities.DataspaceEntity;
53 import org.onap.cps.spi.entities.FragmentEntity;
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.exceptions.DataNodeNotFoundExceptionBatch;
61 import org.onap.cps.spi.model.DataNode;
62 import org.onap.cps.spi.model.DataNodeBuilder;
63 import org.onap.cps.spi.repository.AnchorRepository;
64 import org.onap.cps.spi.repository.DataspaceRepository;
65 import org.onap.cps.spi.repository.FragmentRepository;
66 import org.onap.cps.spi.utils.SessionManager;
67 import org.onap.cps.utils.JsonObjectMapper;
68 import org.springframework.dao.DataIntegrityViolationException;
69 import org.springframework.stereotype.Service;
73 @RequiredArgsConstructor
74 public class CpsDataPersistenceServiceImpl implements CpsDataPersistenceService {
76 private final DataspaceRepository dataspaceRepository;
77 private final AnchorRepository anchorRepository;
78 private final FragmentRepository fragmentRepository;
79 private final JsonObjectMapper jsonObjectMapper;
80 private final SessionManager sessionManager;
82 private static final String REG_EX_FOR_OPTIONAL_LIST_INDEX = "(\\[@.+?])?)";
83 private static final String QUERY_ACROSS_ANCHORS = null;
84 private static final AnchorEntity ALL_ANCHORS = null;
87 public void addChildDataNodes(final String dataspaceName, final String anchorName,
88 final String parentNodeXpath, final Collection<DataNode> dataNodes) {
89 final AnchorEntity anchorEntity = getAnchorEntity(dataspaceName, anchorName);
90 addChildrenDataNodes(anchorEntity, parentNodeXpath, dataNodes);
94 public void addListElements(final String dataspaceName, final String anchorName, final String parentNodeXpath,
95 final Collection<DataNode> newListElements) {
96 final AnchorEntity anchorEntity = getAnchorEntity(dataspaceName, anchorName);
97 addChildrenDataNodes(anchorEntity, parentNodeXpath, newListElements);
101 public void addMultipleLists(final String dataspaceName, final String anchorName, final String parentNodeXpath,
102 final Collection<Collection<DataNode>> newLists) {
103 final AnchorEntity anchorEntity = getAnchorEntity(dataspaceName, anchorName);
104 final Collection<String> failedXpaths = new HashSet<>();
105 for (final Collection<DataNode> newList : newLists) {
107 addChildrenDataNodes(anchorEntity, parentNodeXpath, newList);
108 } catch (final AlreadyDefinedExceptionBatch e) {
109 failedXpaths.addAll(e.getAlreadyDefinedXpaths());
112 if (!failedXpaths.isEmpty()) {
113 throw new AlreadyDefinedExceptionBatch(failedXpaths);
117 private void addNewChildDataNode(final AnchorEntity anchorEntity, final String parentNodeXpath,
118 final DataNode newChild) {
119 final FragmentEntity parentFragmentEntity = getFragmentEntity(anchorEntity, parentNodeXpath);
120 final FragmentEntity newChildAsFragmentEntity = convertToFragmentWithAllDescendants(anchorEntity, newChild);
121 newChildAsFragmentEntity.setParentId(parentFragmentEntity.getId());
123 fragmentRepository.save(newChildAsFragmentEntity);
124 } catch (final DataIntegrityViolationException e) {
125 throw AlreadyDefinedException.forDataNode(newChild.getXpath(), anchorEntity.getName(), e);
129 private void addChildrenDataNodes(final AnchorEntity anchorEntity, final String parentNodeXpath,
130 final Collection<DataNode> newChildren) {
131 final FragmentEntity parentFragmentEntity = getFragmentEntity(anchorEntity, parentNodeXpath);
132 final List<FragmentEntity> fragmentEntities = new ArrayList<>(newChildren.size());
134 for (final DataNode newChildAsDataNode : newChildren) {
135 final FragmentEntity newChildAsFragmentEntity =
136 convertToFragmentWithAllDescendants(anchorEntity, newChildAsDataNode);
137 newChildAsFragmentEntity.setParentId(parentFragmentEntity.getId());
138 fragmentEntities.add(newChildAsFragmentEntity);
140 fragmentRepository.saveAll(fragmentEntities);
141 } catch (final DataIntegrityViolationException e) {
142 log.warn("Exception occurred : {} , While saving : {} children, retrying using individual save operations",
143 e, fragmentEntities.size());
144 retrySavingEachChildIndividually(anchorEntity, parentNodeXpath, newChildren);
148 private void retrySavingEachChildIndividually(final AnchorEntity anchorEntity, final String parentNodeXpath,
149 final Collection<DataNode> newChildren) {
150 final Collection<String> failedXpaths = new HashSet<>();
151 for (final DataNode newChild : newChildren) {
153 addNewChildDataNode(anchorEntity, parentNodeXpath, newChild);
154 } catch (final AlreadyDefinedException e) {
155 failedXpaths.add(newChild.getXpath());
158 if (!failedXpaths.isEmpty()) {
159 throw new AlreadyDefinedExceptionBatch(failedXpaths);
164 public void storeDataNodes(final String dataspaceName, final String anchorName,
165 final Collection<DataNode> dataNodes) {
166 final AnchorEntity anchorEntity = getAnchorEntity(dataspaceName, anchorName);
167 final List<FragmentEntity> fragmentEntities = new ArrayList<>(dataNodes.size());
169 for (final DataNode dataNode: dataNodes) {
170 final FragmentEntity fragmentEntity = convertToFragmentWithAllDescendants(anchorEntity, dataNode);
171 fragmentEntities.add(fragmentEntity);
173 fragmentRepository.saveAll(fragmentEntities);
174 } catch (final DataIntegrityViolationException exception) {
175 log.warn("Exception occurred : {} , While saving : {} data nodes, Retrying saving data nodes individually",
176 exception, dataNodes.size());
177 storeDataNodesIndividually(anchorEntity, dataNodes);
181 private void storeDataNodesIndividually(final AnchorEntity anchorEntity, final Collection<DataNode> dataNodes) {
182 final Collection<String> failedXpaths = new HashSet<>();
183 for (final DataNode dataNode: dataNodes) {
185 final FragmentEntity fragmentEntity = convertToFragmentWithAllDescendants(anchorEntity, dataNode);
186 fragmentRepository.save(fragmentEntity);
187 } catch (final DataIntegrityViolationException e) {
188 failedXpaths.add(dataNode.getXpath());
191 if (!failedXpaths.isEmpty()) {
192 throw new AlreadyDefinedExceptionBatch(failedXpaths);
197 * Convert DataNode object into Fragment and places the result in the fragments placeholder. Performs same action
198 * for all DataNode children recursively.
200 * @param anchorEntity anchorEntity
201 * @param dataNodeToBeConverted dataNode
202 * @return a Fragment built from current DataNode
204 private FragmentEntity convertToFragmentWithAllDescendants(final AnchorEntity anchorEntity,
205 final DataNode dataNodeToBeConverted) {
206 final FragmentEntity parentFragment = toFragmentEntity(anchorEntity, dataNodeToBeConverted);
207 final Builder<FragmentEntity> childFragmentsImmutableSetBuilder = ImmutableSet.builder();
208 for (final DataNode childDataNode : dataNodeToBeConverted.getChildDataNodes()) {
209 final FragmentEntity childFragment = convertToFragmentWithAllDescendants(anchorEntity, childDataNode);
210 childFragmentsImmutableSetBuilder.add(childFragment);
212 parentFragment.setChildFragments(childFragmentsImmutableSetBuilder.build());
213 return parentFragment;
216 private FragmentEntity toFragmentEntity(final AnchorEntity anchorEntity, final DataNode dataNode) {
217 return FragmentEntity.builder()
218 .anchor(anchorEntity)
219 .xpath(dataNode.getXpath())
220 .attributes(jsonObjectMapper.asJsonString(dataNode.getLeaves()))
225 @Timed(value = "cps.data.persistence.service.datanode.get",
226 description = "Time taken to get a data node")
227 public Collection<DataNode> getDataNodes(final String dataspaceName, final String anchorName,
229 final FetchDescendantsOption fetchDescendantsOption) {
230 final String targetXpath = getNormalizedXpath(xpath);
231 final Collection<DataNode> dataNodes = getDataNodesForMultipleXpaths(dataspaceName, anchorName,
232 Collections.singletonList(targetXpath), fetchDescendantsOption);
233 if (dataNodes.isEmpty()) {
234 throw new DataNodeNotFoundException(dataspaceName, anchorName, xpath);
240 @Timed(value = "cps.data.persistence.service.datanode.batch.get",
241 description = "Time taken to get data nodes")
242 public Collection<DataNode> getDataNodesForMultipleXpaths(final String dataspaceName, final String anchorName,
243 final Collection<String> xpaths,
244 final FetchDescendantsOption fetchDescendantsOption) {
245 final AnchorEntity anchorEntity = getAnchorEntity(dataspaceName, anchorName);
246 Collection<FragmentEntity> fragmentEntities = getFragmentEntities(anchorEntity, xpaths);
247 fragmentEntities = fragmentRepository.prefetchDescendantsOfFragmentEntities(fetchDescendantsOption,
249 return createDataNodesFromFragmentEntities(fetchDescendantsOption, fragmentEntities);
252 private Collection<FragmentEntity> getFragmentEntities(final AnchorEntity anchorEntity,
253 final Collection<String> xpaths) {
254 final Collection<String> nonRootXpaths = new HashSet<>(xpaths);
255 final boolean haveRootXpath = nonRootXpaths.removeIf(CpsDataPersistenceServiceImpl::isRootXpath);
257 final Collection<String> normalizedXpaths = new HashSet<>(nonRootXpaths.size());
258 for (final String xpath : nonRootXpaths) {
260 normalizedXpaths.add(CpsPathUtil.getNormalizedXpath(xpath));
261 } catch (final PathParsingException e) {
262 log.warn("Error parsing xpath \"{}\": {}", xpath, e.getMessage());
266 normalizedXpaths.addAll(fragmentRepository.findAllXpathByAnchorAndParentIdIsNull(anchorEntity));
269 return fragmentRepository.findByAnchorAndXpathIn(anchorEntity, normalizedXpaths);
272 private FragmentEntity getFragmentEntity(final AnchorEntity anchorEntity, final String xpath) {
273 final FragmentEntity fragmentEntity;
274 if (isRootXpath(xpath)) {
275 fragmentEntity = fragmentRepository.findOneByAnchorId(anchorEntity.getId()).orElse(null);
277 fragmentEntity = fragmentRepository.getByAnchorAndXpath(anchorEntity, getNormalizedXpath(xpath));
279 if (fragmentEntity == null) {
280 throw new DataNodeNotFoundException(anchorEntity.getDataspace().getName(), anchorEntity.getName(), xpath);
282 return fragmentEntity;
286 @Timed(value = "cps.data.persistence.service.datanode.query",
287 description = "Time taken to query data nodes")
288 public List<DataNode> queryDataNodes(final String dataspaceName, final String anchorName, final String cpsPath,
289 final FetchDescendantsOption fetchDescendantsOption) {
290 final DataspaceEntity dataspaceEntity = dataspaceRepository.getByName(dataspaceName);
291 final AnchorEntity anchorEntity = Strings.isNullOrEmpty(anchorName) ? ALL_ANCHORS
292 : anchorRepository.getByDataspaceAndName(dataspaceEntity, anchorName);
293 final CpsPathQuery cpsPathQuery;
295 cpsPathQuery = CpsPathUtil.getCpsPathQuery(cpsPath);
296 } catch (final PathParsingException e) {
297 throw new CpsPathException(e.getMessage());
300 Collection<FragmentEntity> fragmentEntities;
301 if (anchorEntity == ALL_ANCHORS) {
302 fragmentEntities = fragmentRepository.findByDataspaceAndCpsPath(dataspaceEntity, cpsPathQuery);
304 fragmentEntities = fragmentRepository.findByAnchorAndCpsPath(anchorEntity, cpsPathQuery);
306 if (cpsPathQuery.hasAncestorAxis()) {
307 final Collection<String> ancestorXpaths = processAncestorXpath(fragmentEntities, cpsPathQuery);
308 if (anchorEntity == ALL_ANCHORS) {
309 fragmentEntities = fragmentRepository.findByDataspaceAndXpathIn(dataspaceEntity, ancestorXpaths);
311 fragmentEntities = fragmentRepository.findByAnchorAndXpathIn(anchorEntity, ancestorXpaths);
314 fragmentEntities = fragmentRepository.prefetchDescendantsOfFragmentEntities(fetchDescendantsOption,
316 return createDataNodesFromFragmentEntities(fetchDescendantsOption, fragmentEntities);
320 public List<DataNode> queryDataNodesAcrossAnchors(final String dataspaceName, final String cpsPath,
321 final FetchDescendantsOption fetchDescendantsOption) {
322 return queryDataNodes(dataspaceName, QUERY_ACROSS_ANCHORS, cpsPath, fetchDescendantsOption);
325 private List<DataNode> createDataNodesFromFragmentEntities(final FetchDescendantsOption fetchDescendantsOption,
326 final Collection<FragmentEntity> fragmentEntities) {
327 final List<DataNode> dataNodes = new ArrayList<>(fragmentEntities.size());
328 for (final FragmentEntity fragmentEntity : fragmentEntities) {
329 dataNodes.add(toDataNode(fragmentEntity, fetchDescendantsOption));
331 return Collections.unmodifiableList(dataNodes);
334 private static String getNormalizedXpath(final String xpathSource) {
335 if (isRootXpath(xpathSource)) {
339 return CpsPathUtil.getNormalizedXpath(xpathSource);
340 } catch (final PathParsingException e) {
341 throw new CpsPathException(e.getMessage());
346 public String startSession() {
347 return sessionManager.startSession();
351 public void closeSession(final String sessionId) {
352 sessionManager.closeSession(sessionId, SessionManager.WITH_COMMIT);
356 public void lockAnchor(final String sessionId, final String dataspaceName,
357 final String anchorName, final Long timeoutInMilliseconds) {
358 sessionManager.lockAnchor(sessionId, dataspaceName, anchorName, timeoutInMilliseconds);
361 private static Set<String> processAncestorXpath(final Collection<FragmentEntity> fragmentEntities,
362 final CpsPathQuery cpsPathQuery) {
363 final Set<String> ancestorXpath = new HashSet<>();
364 final Pattern pattern =
365 Pattern.compile("(.*/" + Pattern.quote(cpsPathQuery.getAncestorSchemaNodeIdentifier())
366 + REG_EX_FOR_OPTIONAL_LIST_INDEX + "/.*");
367 for (final FragmentEntity fragmentEntity : fragmentEntities) {
368 final Matcher matcher = pattern.matcher(fragmentEntity.getXpath());
369 if (matcher.matches()) {
370 ancestorXpath.add(matcher.group(1));
373 return ancestorXpath;
376 private DataNode toDataNode(final FragmentEntity fragmentEntity,
377 final FetchDescendantsOption fetchDescendantsOption) {
378 final List<DataNode> childDataNodes = getChildDataNodes(fragmentEntity, fetchDescendantsOption);
379 Map<String, Serializable> leaves = new HashMap<>();
380 if (fragmentEntity.getAttributes() != null) {
381 leaves = jsonObjectMapper.convertJsonString(fragmentEntity.getAttributes(), Map.class);
383 return new DataNodeBuilder()
384 .withXpath(fragmentEntity.getXpath())
386 .withDataspace(fragmentEntity.getAnchor().getDataspace().getName())
387 .withAnchor(fragmentEntity.getAnchor().getName())
388 .withChildDataNodes(childDataNodes).build();
391 private List<DataNode> getChildDataNodes(final FragmentEntity fragmentEntity,
392 final FetchDescendantsOption fetchDescendantsOption) {
393 if (fetchDescendantsOption.hasNext()) {
394 return fragmentEntity.getChildFragments().stream()
395 .map(childFragmentEntity -> toDataNode(childFragmentEntity, fetchDescendantsOption.next()))
396 .collect(Collectors.toList());
398 return Collections.emptyList();
402 public void batchUpdateDataLeaves(final String dataspaceName, final String anchorName,
403 final Map<String, Map<String, Serializable>> updatedLeavesPerXPath) {
404 final AnchorEntity anchorEntity = getAnchorEntity(dataspaceName, anchorName);
406 final Collection<String> xpathsOfUpdatedLeaves = updatedLeavesPerXPath.keySet();
407 final Collection<FragmentEntity> fragmentEntities = getFragmentEntities(anchorEntity, xpathsOfUpdatedLeaves);
409 for (final FragmentEntity fragmentEntity : fragmentEntities) {
410 final Map<String, Serializable> updatedLeaves = updatedLeavesPerXPath.get(fragmentEntity.getXpath());
411 final String mergedLeaves = mergeLeaves(updatedLeaves, fragmentEntity.getAttributes());
412 fragmentEntity.setAttributes(mergedLeaves);
416 fragmentRepository.saveAll(fragmentEntities);
417 } catch (final StaleStateException staleStateException) {
418 retryUpdateDataNodesIndividually(anchorEntity, fragmentEntities);
423 public void updateDataNodesAndDescendants(final String dataspaceName, final String anchorName,
424 final Collection<DataNode> updatedDataNodes) {
425 final AnchorEntity anchorEntity = getAnchorEntity(dataspaceName, anchorName);
427 final Map<String, DataNode> xpathToUpdatedDataNode = updatedDataNodes.stream()
428 .collect(Collectors.toMap(DataNode::getXpath, dataNode -> dataNode));
430 final Collection<String> xpaths = xpathToUpdatedDataNode.keySet();
431 Collection<FragmentEntity> existingFragmentEntities = getFragmentEntities(anchorEntity, xpaths);
432 existingFragmentEntities = fragmentRepository.prefetchDescendantsOfFragmentEntities(
433 FetchDescendantsOption.INCLUDE_ALL_DESCENDANTS, existingFragmentEntities);
435 for (final FragmentEntity existingFragmentEntity : existingFragmentEntities) {
436 final DataNode updatedDataNode = xpathToUpdatedDataNode.get(existingFragmentEntity.getXpath());
437 updateFragmentEntityAndDescendantsWithDataNode(existingFragmentEntity, updatedDataNode);
441 fragmentRepository.saveAll(existingFragmentEntities);
442 } catch (final StaleStateException staleStateException) {
443 retryUpdateDataNodesIndividually(anchorEntity, existingFragmentEntities);
447 private void retryUpdateDataNodesIndividually(final AnchorEntity anchorEntity,
448 final Collection<FragmentEntity> fragmentEntities) {
449 final Collection<String> failedXpaths = new HashSet<>();
450 for (final FragmentEntity dataNodeFragment : fragmentEntities) {
452 fragmentRepository.save(dataNodeFragment);
453 } catch (final StaleStateException e) {
454 failedXpaths.add(dataNodeFragment.getXpath());
457 if (!failedXpaths.isEmpty()) {
458 final String failedXpathsConcatenated = String.join(",", failedXpaths);
459 throw new ConcurrencyException("Concurrent Transactions", String.format(
460 "DataNodes : %s in Dataspace :'%s' with Anchor : '%s' are updated by another transaction.",
461 failedXpathsConcatenated, anchorEntity.getDataspace().getName(), anchorEntity.getName()));
465 private void updateFragmentEntityAndDescendantsWithDataNode(final FragmentEntity existingFragmentEntity,
466 final DataNode newDataNode) {
467 existingFragmentEntity.setAttributes(jsonObjectMapper.asJsonString(newDataNode.getLeaves()));
469 final Map<String, FragmentEntity> existingChildrenByXpath = existingFragmentEntity.getChildFragments().stream()
470 .collect(Collectors.toMap(FragmentEntity::getXpath, childFragmentEntity -> childFragmentEntity));
472 final Collection<FragmentEntity> updatedChildFragments = new HashSet<>();
473 for (final DataNode newDataNodeChild : newDataNode.getChildDataNodes()) {
474 final FragmentEntity childFragment;
475 if (isNewDataNode(newDataNodeChild, existingChildrenByXpath)) {
476 childFragment = convertToFragmentWithAllDescendants(existingFragmentEntity.getAnchor(),
479 childFragment = existingChildrenByXpath.get(newDataNodeChild.getXpath());
480 updateFragmentEntityAndDescendantsWithDataNode(childFragment, newDataNodeChild);
482 updatedChildFragments.add(childFragment);
485 existingFragmentEntity.getChildFragments().clear();
486 existingFragmentEntity.getChildFragments().addAll(updatedChildFragments);
491 public void replaceListContent(final String dataspaceName, final String anchorName, final String parentNodeXpath,
492 final Collection<DataNode> newListElements) {
493 final AnchorEntity anchorEntity = getAnchorEntity(dataspaceName, anchorName);
494 final FragmentEntity parentEntity = getFragmentEntity(anchorEntity, parentNodeXpath);
495 final String listElementXpathPrefix = getListElementXpathPrefix(newListElements);
496 final Map<String, FragmentEntity> existingListElementFragmentEntitiesByXPath =
497 extractListElementFragmentEntitiesByXPath(parentEntity.getChildFragments(), listElementXpathPrefix);
498 parentEntity.getChildFragments().removeAll(existingListElementFragmentEntitiesByXPath.values());
499 final Set<FragmentEntity> updatedChildFragmentEntities = new HashSet<>();
500 for (final DataNode newListElement : newListElements) {
501 final FragmentEntity existingListElementEntity =
502 existingListElementFragmentEntitiesByXPath.get(newListElement.getXpath());
503 final FragmentEntity entityToBeAdded = getFragmentForReplacement(parentEntity, newListElement,
504 existingListElementEntity);
505 updatedChildFragmentEntities.add(entityToBeAdded);
507 parentEntity.getChildFragments().addAll(updatedChildFragmentEntities);
508 fragmentRepository.save(parentEntity);
513 public void deleteDataNodes(final String dataspaceName, final String anchorName) {
514 final DataspaceEntity dataspaceEntity = dataspaceRepository.getByName(dataspaceName);
515 anchorRepository.findByDataspaceAndName(dataspaceEntity, anchorName)
516 .ifPresent(anchorEntity -> fragmentRepository.deleteByAnchorIn(Collections.singletonList(anchorEntity)));
521 public void deleteDataNodes(final String dataspaceName, final Collection<String> anchorNames) {
522 final DataspaceEntity dataspaceEntity = dataspaceRepository.getByName(dataspaceName);
523 final Collection<AnchorEntity> anchorEntities =
524 anchorRepository.findAllByDataspaceAndNameIn(dataspaceEntity, anchorNames);
525 fragmentRepository.deleteByAnchorIn(anchorEntities);
530 public void deleteDataNodes(final String dataspaceName, final String anchorName,
531 final Collection<String> xpathsToDelete) {
532 deleteDataNodes(dataspaceName, anchorName, xpathsToDelete, false);
535 private void deleteDataNodes(final String dataspaceName, final String anchorName,
536 final Collection<String> xpathsToDelete, final boolean onlySupportListDeletion) {
537 final boolean haveRootXpath = xpathsToDelete.stream().anyMatch(CpsDataPersistenceServiceImpl::isRootXpath);
539 deleteDataNodes(dataspaceName, anchorName);
543 final AnchorEntity anchorEntity = getAnchorEntity(dataspaceName, anchorName);
545 final Collection<String> deleteChecklist = new HashSet<>(xpathsToDelete.size());
546 for (final String xpath : xpathsToDelete) {
548 deleteChecklist.add(CpsPathUtil.getNormalizedXpath(xpath));
549 } catch (final PathParsingException e) {
550 log.warn("Error parsing xpath \"{}\": {}", xpath, e.getMessage());
554 final Collection<String> xpathsToExistingContainers =
555 fragmentRepository.findAllXpathByAnchorAndXpathIn(anchorEntity, deleteChecklist);
556 if (onlySupportListDeletion) {
557 final Collection<String> xpathsToExistingListElements = xpathsToExistingContainers.stream()
558 .filter(CpsPathUtil::isPathToListElement).collect(Collectors.toList());
559 deleteChecklist.removeAll(xpathsToExistingListElements);
561 deleteChecklist.removeAll(xpathsToExistingContainers);
564 final Collection<String> xpathsToExistingLists = deleteChecklist.stream()
565 .filter(xpath -> fragmentRepository.existsByAnchorAndXpathStartsWith(anchorEntity, xpath + "["))
566 .collect(Collectors.toList());
567 deleteChecklist.removeAll(xpathsToExistingLists);
569 if (!deleteChecklist.isEmpty()) {
570 throw new DataNodeNotFoundExceptionBatch(dataspaceName, anchorName, deleteChecklist);
573 fragmentRepository.deleteByAnchorIdAndXpaths(anchorEntity.getId(), xpathsToExistingContainers);
574 fragmentRepository.deleteListsByAnchorIdAndXpaths(anchorEntity.getId(), xpathsToExistingLists);
579 public void deleteListDataNode(final String dataspaceName, final String anchorName,
580 final String targetXpath) {
581 deleteDataNode(dataspaceName, anchorName, targetXpath, true);
586 public void deleteDataNode(final String dataspaceName, final String anchorName, final String targetXpath) {
587 deleteDataNode(dataspaceName, anchorName, targetXpath, false);
590 private void deleteDataNode(final String dataspaceName, final String anchorName, final String targetXpath,
591 final boolean onlySupportListNodeDeletion) {
592 final String normalizedXpath = getNormalizedXpath(targetXpath);
594 deleteDataNodes(dataspaceName, anchorName, Collections.singletonList(normalizedXpath),
595 onlySupportListNodeDeletion);
596 } catch (final DataNodeNotFoundExceptionBatch dataNodeNotFoundExceptionBatch) {
597 throw new DataNodeNotFoundException(dataspaceName, anchorName, targetXpath);
601 private static String getListElementXpathPrefix(final Collection<DataNode> newListElements) {
602 if (newListElements.isEmpty()) {
603 throw new CpsAdminException("Invalid list replacement",
604 "Cannot replace list elements with empty collection");
606 final String firstChildNodeXpath = newListElements.iterator().next().getXpath();
607 return firstChildNodeXpath.substring(0, firstChildNodeXpath.lastIndexOf('[') + 1);
610 private FragmentEntity getFragmentForReplacement(final FragmentEntity parentEntity,
611 final DataNode newListElement,
612 final FragmentEntity existingListElementEntity) {
613 if (existingListElementEntity == null) {
614 return convertToFragmentWithAllDescendants(parentEntity.getAnchor(), newListElement);
616 if (newListElement.getChildDataNodes().isEmpty()) {
617 copyAttributesFromNewListElement(existingListElementEntity, newListElement);
618 existingListElementEntity.getChildFragments().clear();
620 updateFragmentEntityAndDescendantsWithDataNode(existingListElementEntity, newListElement);
622 return existingListElementEntity;
625 private static boolean isNewDataNode(final DataNode replacementDataNode,
626 final Map<String, FragmentEntity> existingListElementsByXpath) {
627 return !existingListElementsByXpath.containsKey(replacementDataNode.getXpath());
630 private void copyAttributesFromNewListElement(final FragmentEntity existingListElementEntity,
631 final DataNode newListElement) {
632 final FragmentEntity replacementFragmentEntity =
633 FragmentEntity.builder().attributes(jsonObjectMapper.asJsonString(
634 newListElement.getLeaves())).build();
635 existingListElementEntity.setAttributes(replacementFragmentEntity.getAttributes());
638 private static Map<String, FragmentEntity> extractListElementFragmentEntitiesByXPath(
639 final Set<FragmentEntity> childEntities, final String listElementXpathPrefix) {
640 return childEntities.stream()
641 .filter(fragmentEntity -> fragmentEntity.getXpath().startsWith(listElementXpathPrefix))
642 .collect(Collectors.toMap(FragmentEntity::getXpath, fragmentEntity -> fragmentEntity));
645 private static boolean isRootXpath(final String xpath) {
646 return "/".equals(xpath) || "".equals(xpath);
649 private String mergeLeaves(final Map<String, Serializable> updateLeaves, final String currentLeavesAsString) {
650 Map<String, Serializable> currentLeavesAsMap = new HashMap<>();
651 if (currentLeavesAsString != null) {
652 currentLeavesAsMap = jsonObjectMapper.convertJsonString(currentLeavesAsString, Map.class);
653 currentLeavesAsMap.putAll(updateLeaves);
656 if (currentLeavesAsMap.isEmpty()) {
659 return jsonObjectMapper.asJsonString(currentLeavesAsMap);
662 private AnchorEntity getAnchorEntity(final String dataspaceName, final String anchorName) {
663 final DataspaceEntity dataspaceEntity = dataspaceRepository.getByName(dataspaceName);
664 return anchorRepository.getByDataspaceAndName(dataspaceEntity, anchorName);