/*
- * ============LICENSE_START=======================================================
+ * ============LICENSE_START=======================================================
* Copyright (C) 2021 Nordix Foundation
+ * Modifications Copyright (C) 2021 Pantheon.tech
+ * Modifications Copyright (C) 2020-2021 Bell Canada.
* ================================================================================
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
+ *
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
package org.onap.cps.spi.impl;
+import static org.onap.cps.spi.FetchDescendantsOption.INCLUDE_ALL_DESCENDANTS;
+
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.ImmutableSet.Builder;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.regex.Pattern;
+import java.util.stream.Collectors;
+import javax.transaction.Transactional;
+import lombok.extern.slf4j.Slf4j;
+import org.hibernate.StaleStateException;
+import org.onap.cps.cpspath.parser.CpsPathQuery;
import org.onap.cps.spi.CpsDataPersistenceService;
+import org.onap.cps.spi.FetchDescendantsOption;
import org.onap.cps.spi.entities.AnchorEntity;
import org.onap.cps.spi.entities.DataspaceEntity;
import org.onap.cps.spi.entities.FragmentEntity;
+import org.onap.cps.spi.exceptions.AlreadyDefinedException;
+import org.onap.cps.spi.exceptions.ConcurrencyException;
+import org.onap.cps.spi.exceptions.CpsPathException;
import org.onap.cps.spi.model.DataNode;
+import org.onap.cps.spi.model.DataNodeBuilder;
import org.onap.cps.spi.repository.AnchorRepository;
import org.onap.cps.spi.repository.DataspaceRepository;
import org.onap.cps.spi.repository.FragmentRepository;
-import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.dao.DataIntegrityViolationException;
import org.springframework.stereotype.Service;
@Service
+@Slf4j
public class CpsDataPersistenceServiceImpl implements CpsDataPersistenceService {
- @Autowired
private DataspaceRepository dataspaceRepository;
- @Autowired
private AnchorRepository anchorRepository;
- @Autowired
private FragmentRepository fragmentRepository;
- private static Gson GSON = new GsonBuilder().create();
+ /**
+ * Constructor.
+ *
+ * @param dataspaceRepository dataspaceRepository
+ * @param anchorRepository anchorRepository
+ * @param fragmentRepository fragmentRepository
+ */
+ public CpsDataPersistenceServiceImpl(final DataspaceRepository dataspaceRepository,
+ final AnchorRepository anchorRepository, final FragmentRepository fragmentRepository) {
+ this.dataspaceRepository = dataspaceRepository;
+ this.anchorRepository = anchorRepository;
+ this.fragmentRepository = fragmentRepository;
+ }
+
+ private static final Gson GSON = new GsonBuilder().create();
+ private static final String REG_EX_FOR_OPTIONAL_LIST_INDEX = "(\\[@\\S+?]){0,1})";
+
+ @Override
+ public void addChildDataNode(final String dataspaceName, final String anchorName, final String parentXpath,
+ final DataNode dataNode) {
+ final FragmentEntity parentFragment = getFragmentByXpath(dataspaceName, anchorName, parentXpath);
+ final var fragmentEntity =
+ toFragmentEntity(parentFragment.getDataspace(), parentFragment.getAnchor(), dataNode);
+ parentFragment.getChildFragments().add(fragmentEntity);
+ try {
+ fragmentRepository.save(parentFragment);
+ } catch (final DataIntegrityViolationException exception) {
+ throw AlreadyDefinedException.forDataNode(dataNode.getXpath(), anchorName, exception);
+ }
+ }
+
+ @Override
+ public void addListDataNodes(final String dataspaceName, final String anchorName, final String parentNodeXpath,
+ final Collection<DataNode> dataNodes) {
+ final FragmentEntity parentFragment = getFragmentByXpath(dataspaceName, anchorName, parentNodeXpath);
+ final List<FragmentEntity> newFragmentEntities =
+ dataNodes.stream().map(
+ dataNode -> toFragmentEntity(parentFragment.getDataspace(), parentFragment.getAnchor(), dataNode)
+ ).collect(Collectors.toUnmodifiableList());
+ parentFragment.getChildFragments().addAll(newFragmentEntities);
+ try {
+ fragmentRepository.save(parentFragment);
+ dataNodes.forEach(
+ dataNode -> getChildFragments(dataspaceName, anchorName, dataNode)
+ );
+ } catch (final DataIntegrityViolationException exception) {
+ final List<String> conflictXpaths = dataNodes.stream()
+ .map(DataNode::getXpath)
+ .collect(Collectors.toList());
+ throw AlreadyDefinedException.forDataNodes(conflictXpaths, anchorName, exception);
+ }
+ }
@Override
public void storeDataNode(final String dataspaceName, final String anchorName, final DataNode dataNode) {
- final DataspaceEntity dataspaceEntity = dataspaceRepository.getByName(dataspaceName);
- final AnchorEntity anchorEntity = anchorRepository.getByDataspaceAndName(dataspaceEntity, anchorName);
- final FragmentEntity fragmentEntity = convertToFragmentWithAllDescendants(dataspaceEntity, anchorEntity,
+ final var dataspaceEntity = dataspaceRepository.getByName(dataspaceName);
+ final var anchorEntity = anchorRepository.getByDataspaceAndName(dataspaceEntity, anchorName);
+ final var fragmentEntity = convertToFragmentWithAllDescendants(dataspaceEntity, anchorEntity,
dataNode);
- fragmentRepository.save(fragmentEntity);
+ try {
+ fragmentRepository.save(fragmentEntity);
+ } catch (final DataIntegrityViolationException exception) {
+ throw AlreadyDefinedException.forDataNode(dataNode.getXpath(), anchorName, exception);
+ }
}
/**
*/
private static FragmentEntity convertToFragmentWithAllDescendants(final DataspaceEntity dataspaceEntity,
final AnchorEntity anchorEntity, final DataNode dataNodeToBeConverted) {
- final FragmentEntity parentFragment = FragmentEntity.builder()
- .dataspace(dataspaceEntity)
- .anchor(anchorEntity)
- .xpath(dataNodeToBeConverted.getXpath())
- .attributes(GSON.toJson(dataNodeToBeConverted.getLeaves()))
- .build();
-
- final Builder<FragmentEntity> fragmentEntityBuilder = ImmutableSet.builder();
+ final var parentFragment = toFragmentEntity(dataspaceEntity, anchorEntity, dataNodeToBeConverted);
+ final Builder<FragmentEntity> childFragmentsImmutableSetBuilder = ImmutableSet.builder();
for (final DataNode childDataNode : dataNodeToBeConverted.getChildDataNodes()) {
final FragmentEntity childFragment =
convertToFragmentWithAllDescendants(parentFragment.getDataspace(), parentFragment.getAnchor(),
childDataNode);
- fragmentEntityBuilder.add(childFragment);
+ childFragmentsImmutableSetBuilder.add(childFragment);
}
- parentFragment.setChildFragments(fragmentEntityBuilder.build());
+ parentFragment.setChildFragments(childFragmentsImmutableSetBuilder.build());
return parentFragment;
}
+
+ private void getChildFragments(final String dataspaceName, final String anchorName, final DataNode dataNode) {
+ for (final DataNode childDataNode: dataNode.getChildDataNodes()) {
+ final FragmentEntity getChildsParentFragmentByXPath =
+ getFragmentByXpath(dataspaceName, anchorName, dataNode.getXpath());
+ final FragmentEntity childFragmentEntity = toFragmentEntity(getChildsParentFragmentByXPath.getDataspace(),
+ getChildsParentFragmentByXPath.getAnchor(), childDataNode);
+ getChildsParentFragmentByXPath.getChildFragments().add(childFragmentEntity);
+ fragmentRepository.save(getChildsParentFragmentByXPath);
+ }
+ }
+
+ private static FragmentEntity toFragmentEntity(final DataspaceEntity dataspaceEntity,
+ final AnchorEntity anchorEntity, final DataNode dataNode) {
+ return FragmentEntity.builder()
+ .dataspace(dataspaceEntity)
+ .anchor(anchorEntity)
+ .xpath(dataNode.getXpath())
+ .attributes(GSON.toJson(dataNode.getLeaves()))
+ .build();
+ }
+
+ @Override
+ public DataNode getDataNode(final String dataspaceName, final String anchorName, final String xpath,
+ final FetchDescendantsOption fetchDescendantsOption) {
+ final var fragmentEntity = getFragmentByXpath(dataspaceName, anchorName, xpath);
+ return toDataNode(fragmentEntity, fetchDescendantsOption);
+ }
+
+ private FragmentEntity getFragmentByXpath(final String dataspaceName, final String anchorName,
+ final String xpath) {
+ final var dataspaceEntity = dataspaceRepository.getByName(dataspaceName);
+ final var anchorEntity = anchorRepository.getByDataspaceAndName(dataspaceEntity, anchorName);
+ if (isRootXpath(xpath)) {
+ return fragmentRepository.findFirstRootByDataspaceAndAnchor(dataspaceEntity, anchorEntity);
+ } else {
+ return fragmentRepository.getByDataspaceAndAnchorAndXpath(dataspaceEntity, anchorEntity,
+ xpath);
+ }
+ }
+
+ @Override
+ public List<DataNode> queryDataNodes(final String dataspaceName, final String anchorName, final String cpsPath,
+ final FetchDescendantsOption fetchDescendantsOption) {
+ final var dataspaceEntity = dataspaceRepository.getByName(dataspaceName);
+ final var anchorEntity = anchorRepository.getByDataspaceAndName(dataspaceEntity, anchorName);
+ final CpsPathQuery cpsPathQuery;
+ try {
+ cpsPathQuery = CpsPathQuery.createFrom(cpsPath);
+ } catch (final IllegalStateException e) {
+ throw new CpsPathException(e.getMessage());
+ }
+ List<FragmentEntity> fragmentEntities =
+ fragmentRepository.findByAnchorAndCpsPath(anchorEntity.getId(), cpsPathQuery);
+ if (cpsPathQuery.hasAncestorAxis()) {
+ final Set<String> ancestorXpaths = processAncestorXpath(fragmentEntities, cpsPathQuery);
+ fragmentEntities = ancestorXpaths.isEmpty()
+ ? Collections.emptyList() : fragmentRepository.findAllByAnchorAndXpathIn(anchorEntity, ancestorXpaths);
+ }
+ return fragmentEntities.stream()
+ .map(fragmentEntity -> toDataNode(fragmentEntity, fetchDescendantsOption))
+ .collect(Collectors.toUnmodifiableList());
+ }
+
+ private static Set<String> processAncestorXpath(final List<FragmentEntity> fragmentEntities,
+ final CpsPathQuery cpsPathQuery) {
+ final Set<String> ancestorXpath = new HashSet<>();
+ final var pattern =
+ Pattern.compile("(\\S*\\/" + Pattern.quote(cpsPathQuery.getAncestorSchemaNodeIdentifier())
+ + REG_EX_FOR_OPTIONAL_LIST_INDEX + "\\/\\S*");
+ for (final FragmentEntity fragmentEntity : fragmentEntities) {
+ final var matcher = pattern.matcher(fragmentEntity.getXpath());
+ if (matcher.matches()) {
+ ancestorXpath.add(matcher.group(1));
+ }
+ }
+ return ancestorXpath;
+ }
+
+ private static DataNode toDataNode(final FragmentEntity fragmentEntity,
+ final FetchDescendantsOption fetchDescendantsOption) {
+ final Map<String, Object> leaves = GSON.fromJson(fragmentEntity.getAttributes(), Map.class);
+ final List<DataNode> childDataNodes = getChildDataNodes(fragmentEntity, fetchDescendantsOption);
+ return new DataNodeBuilder()
+ .withXpath(fragmentEntity.getXpath())
+ .withLeaves(leaves)
+ .withChildDataNodes(childDataNodes).build();
+ }
+
+ private static List<DataNode> getChildDataNodes(final FragmentEntity fragmentEntity,
+ final FetchDescendantsOption fetchDescendantsOption) {
+ if (fetchDescendantsOption == INCLUDE_ALL_DESCENDANTS) {
+ return fragmentEntity.getChildFragments().stream()
+ .map(childFragmentEntity -> toDataNode(childFragmentEntity, fetchDescendantsOption))
+ .collect(Collectors.toUnmodifiableList());
+ }
+ return Collections.emptyList();
+ }
+
+ @Override
+ public void updateDataLeaves(final String dataspaceName, final String anchorName, final String xpath,
+ final Map<String, Object> leaves) {
+ final var fragmentEntity = getFragmentByXpath(dataspaceName, anchorName, xpath);
+ fragmentEntity.setAttributes(GSON.toJson(leaves));
+ fragmentRepository.save(fragmentEntity);
+ }
+
+ @Override
+ public void replaceDataNodeTree(final String dataspaceName, final String anchorName,
+ final DataNode dataNode) {
+ final var fragmentEntity = getFragmentByXpath(dataspaceName, anchorName, dataNode.getXpath());
+ replaceDataNodeTree(fragmentEntity, dataNode);
+ try {
+ fragmentRepository.save(fragmentEntity);
+ } catch (final StaleStateException staleStateException) {
+ throw new ConcurrencyException("Concurrent Transactions",
+ String.format("dataspace :'%s', Anchor : '%s' and xpath: '%s' is updated by another transaction.",
+ dataspaceName, anchorName, dataNode.getXpath()),
+ staleStateException);
+ }
+ }
+
+ private void replaceDataNodeTree(final FragmentEntity existingFragmentEntity, final DataNode submittedDataNode) {
+
+ existingFragmentEntity.setAttributes(GSON.toJson(submittedDataNode.getLeaves()));
+
+ final Map<String, FragmentEntity> existingChildrenByXpath = existingFragmentEntity.getChildFragments()
+ .stream().collect(Collectors.toMap(FragmentEntity::getXpath, childFragmentEntity -> childFragmentEntity));
+
+ final var updatedChildFragments = new HashSet<FragmentEntity>();
+
+ for (final DataNode submittedChildDataNode : submittedDataNode.getChildDataNodes()) {
+ final FragmentEntity childFragment;
+ if (existingChildrenByXpath.containsKey(submittedChildDataNode.getXpath())) {
+ childFragment = existingChildrenByXpath.get(submittedChildDataNode.getXpath());
+ replaceDataNodeTree(childFragment, submittedChildDataNode);
+ } else {
+ childFragment = convertToFragmentWithAllDescendants(
+ existingFragmentEntity.getDataspace(), existingFragmentEntity.getAnchor(), submittedChildDataNode);
+ }
+ updatedChildFragments.add(childFragment);
+ }
+ existingFragmentEntity.setChildFragments(updatedChildFragments);
+ }
+
+ @Override
+ @Transactional
+ public void replaceListDataNodes(final String dataspaceName, final String anchorName, final String parentNodeXpath,
+ final Collection<DataNode> dataNodes) {
+ final var parentEntity = getFragmentByXpath(dataspaceName, anchorName, parentNodeXpath);
+ final var firstChildNodeXpath = dataNodes.iterator().next().getXpath();
+ final var listNodeXpath = firstChildNodeXpath.substring(0, firstChildNodeXpath.lastIndexOf("["));
+ removeListNodeDescendants(parentEntity, listNodeXpath);
+ final Set<FragmentEntity> childFragmentEntities = dataNodes.stream().map(
+ dataNode -> convertToFragmentWithAllDescendants(
+ parentEntity.getDataspace(), parentEntity.getAnchor(), dataNode)
+ ).collect(Collectors.toUnmodifiableSet());
+ parentEntity.getChildFragments().addAll(childFragmentEntities);
+ fragmentRepository.save(parentEntity);
+ }
+
+ private void removeListNodeDescendants(final FragmentEntity parentFragmentEntity, final String listNodeXpath) {
+ final String listNodeXpathPrefix = listNodeXpath + "[";
+ if (parentFragmentEntity.getChildFragments()
+ .removeIf(fragment -> fragment.getXpath().startsWith(listNodeXpathPrefix))) {
+ fragmentRepository.save(parentFragmentEntity);
+ }
+ }
+
+ private static boolean isRootXpath(final String xpath) {
+ return "/".equals(xpath) || "".equals(xpath);
+ }
}
Code Review / cps.git / blobdiff