2 * ============LICENSE_START=======================================================
3 * Copyright (C) 2020-2022 Nordix Foundation
4 * Modifications Copyright (C) 2020-2022 Bell Canada.
5 * Modifications Copyright (C) 2021 Pantheon.tech
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 static com.google.common.base.Preconditions.checkNotNull;
28 import com.google.common.base.MoreObjects;
29 import com.google.common.collect.ImmutableSet;
30 import java.io.ByteArrayInputStream;
31 import java.io.IOException;
32 import java.io.InputStream;
33 import java.nio.charset.StandardCharsets;
34 import java.util.Collection;
35 import java.util.HashMap;
36 import java.util.List;
38 import java.util.Optional;
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.apache.commons.codec.digest.DigestUtils;
46 import org.apache.commons.lang3.StringUtils;
47 import org.hibernate.exception.ConstraintViolationException;
48 import org.onap.cps.spi.CpsAdminPersistenceService;
49 import org.onap.cps.spi.CpsModulePersistenceService;
50 import org.onap.cps.spi.entities.DataspaceEntity;
51 import org.onap.cps.spi.entities.SchemaSetEntity;
52 import org.onap.cps.spi.entities.YangResourceEntity;
53 import org.onap.cps.spi.entities.YangResourceModuleReference;
54 import org.onap.cps.spi.exceptions.AlreadyDefinedException;
55 import org.onap.cps.spi.exceptions.DuplicatedYangResourceException;
56 import org.onap.cps.spi.exceptions.ModelValidationException;
57 import org.onap.cps.spi.model.ModuleDefinition;
58 import org.onap.cps.spi.model.ModuleReference;
59 import org.onap.cps.spi.model.SchemaSet;
60 import org.onap.cps.spi.repository.DataspaceRepository;
61 import org.onap.cps.spi.repository.ModuleReferenceRepository;
62 import org.onap.cps.spi.repository.SchemaSetRepository;
63 import org.onap.cps.spi.repository.YangResourceRepository;
64 import org.opendaylight.yangtools.yang.common.Revision;
65 import org.opendaylight.yangtools.yang.model.repo.api.RevisionSourceIdentifier;
66 import org.opendaylight.yangtools.yang.model.repo.api.YangTextSchemaSource;
67 import org.opendaylight.yangtools.yang.parser.api.YangSyntaxErrorException;
68 import org.opendaylight.yangtools.yang.parser.rfc7950.repo.YangModelDependencyInfo;
69 import org.springframework.dao.DataIntegrityViolationException;
70 import org.springframework.retry.annotation.Backoff;
71 import org.springframework.retry.annotation.Retryable;
72 import org.springframework.retry.support.RetrySynchronizationManager;
73 import org.springframework.stereotype.Component;
77 @RequiredArgsConstructor
78 public class CpsModulePersistenceServiceImpl implements CpsModulePersistenceService {
80 private static final String YANG_RESOURCE_CHECKSUM_CONSTRAINT_NAME = "yang_resource_checksum_key";
81 private static final Pattern CHECKSUM_EXCEPTION_PATTERN = Pattern.compile(".*\\(checksum\\)=\\((\\w+)\\).*");
82 private static final Pattern RFC6020_RECOMMENDED_FILENAME_PATTERN = Pattern
83 .compile("([\\w-]+)@(\\d{4}-\\d{2}-\\d{2})(?:\\.yang)?", Pattern.CASE_INSENSITIVE);
85 private final YangResourceRepository yangResourceRepository;
87 private final SchemaSetRepository schemaSetRepository;
89 private final DataspaceRepository dataspaceRepository;
91 private final CpsAdminPersistenceService cpsAdminPersistenceService;
93 private final ModuleReferenceRepository moduleReferenceRepository;
96 public Map<String, String> getYangSchemaResources(final String dataspaceName, final String schemaSetName) {
97 final var dataspaceEntity = dataspaceRepository.getByName(dataspaceName);
98 final var schemaSetEntity =
99 schemaSetRepository.getByDataspaceAndName(dataspaceEntity, schemaSetName);
100 return schemaSetEntity.getYangResources().stream().collect(
101 Collectors.toMap(YangResourceEntity::getFileName, YangResourceEntity::getContent));
105 public Map<String, String> getYangSchemaSetResources(final String dataspaceName, final String anchorName) {
106 final var anchor = cpsAdminPersistenceService.getAnchor(dataspaceName, anchorName);
107 return getYangSchemaResources(dataspaceName, anchor.getSchemaSetName());
111 public Collection<ModuleReference> getYangResourceModuleReferences(final String dataspaceName) {
112 final Set<YangResourceModuleReference> yangResourceModuleReferenceList =
113 yangResourceRepository.findAllModuleReferencesByDataspace(dataspaceName);
114 return yangResourceModuleReferenceList.stream().map(CpsModulePersistenceServiceImpl::toModuleReference)
115 .collect(Collectors.toList());
119 public Collection<ModuleReference> getYangResourceModuleReferences(final String dataspaceName,
120 final String anchorName) {
121 final Set<YangResourceModuleReference> yangResourceModuleReferenceList =
122 yangResourceRepository
123 .findAllModuleReferencesByDataspaceAndAnchor(dataspaceName, anchorName);
124 return yangResourceModuleReferenceList.stream().map(CpsModulePersistenceServiceImpl::toModuleReference)
125 .collect(Collectors.toList());
129 public Collection<ModuleDefinition> getYangResourceDefinitions(final String dataspaceName,
130 final String anchorName) {
131 final Set<YangResourceEntity> yangResourceEntities =
132 yangResourceRepository
133 .findAllModuleDefinitionsByDataspaceAndAnchor(dataspaceName, anchorName);
134 return yangResourceEntities.stream().map(CpsModulePersistenceServiceImpl::toModuleDefinition)
135 .collect(Collectors.toList());
140 // A retry is made to store the schema set if it fails because of duplicated yang resource exception that
141 // can occur in case of specific concurrent requests.
142 @Retryable(value = DuplicatedYangResourceException.class, maxAttempts = 5, backoff =
143 @Backoff(random = true, delay = 200, maxDelay = 2000, multiplier = 2))
144 public void storeSchemaSet(final String dataspaceName, final String schemaSetName,
145 final Map<String, String> moduleReferenceNameToContentMap) {
146 final var dataspaceEntity = dataspaceRepository.getByName(dataspaceName);
147 final var yangResourceEntities = synchronizeYangResources(moduleReferenceNameToContentMap);
148 final var schemaSetEntity = new SchemaSetEntity();
149 schemaSetEntity.setName(schemaSetName);
150 schemaSetEntity.setDataspace(dataspaceEntity);
151 schemaSetEntity.setYangResources(yangResourceEntities);
153 schemaSetRepository.save(schemaSetEntity);
154 } catch (final DataIntegrityViolationException e) {
155 throw AlreadyDefinedException.forSchemaSet(schemaSetName, dataspaceName, e);
160 public Collection<SchemaSet> getSchemaSetsByDataspaceName(final String dataspaceName) {
161 final DataspaceEntity dataspaceEntity = dataspaceRepository.getByName(dataspaceName);
162 final List<SchemaSetEntity> schemaSetEntities = schemaSetRepository.getByDataspace(dataspaceEntity);
163 return schemaSetEntities.stream()
164 .map(CpsModulePersistenceServiceImpl::toSchemaSet).collect(Collectors.toList());
169 // A retry is made to store the schema set if it fails because of duplicated yang resource exception that
170 // can occur in case of specific concurrent requests.
171 @Retryable(value = DuplicatedYangResourceException.class, maxAttempts = 5, backoff =
172 @Backoff(random = true, delay = 200, maxDelay = 2000, multiplier = 2))
173 public void storeSchemaSetFromModules(final String dataspaceName, final String schemaSetName,
174 final Map<String, String> newModuleNameToContentMap,
175 final Collection<ModuleReference> allModuleReferences) {
176 storeSchemaSet(dataspaceName, schemaSetName, newModuleNameToContentMap);
177 final DataspaceEntity dataspaceEntity = dataspaceRepository.getByName(dataspaceName);
178 final SchemaSetEntity schemaSetEntity =
179 schemaSetRepository.getByDataspaceAndName(dataspaceEntity, schemaSetName);
180 final List<Long> allYangResourceIds =
181 yangResourceRepository.getResourceIdsByModuleReferences(allModuleReferences);
182 yangResourceRepository.insertSchemaSetIdYangResourceId(schemaSetEntity.getId(), allYangResourceIds);
187 public void deleteSchemaSet(final String dataspaceName, final String schemaSetName) {
188 final var dataspaceEntity = dataspaceRepository.getByName(dataspaceName);
189 final var schemaSetEntity =
190 schemaSetRepository.getByDataspaceAndName(dataspaceEntity, schemaSetName);
191 schemaSetRepository.delete(schemaSetEntity);
196 public void deleteUnusedYangResourceModules() {
197 yangResourceRepository.deleteOrphans();
201 public Collection<ModuleReference> identifyNewModuleReferences(
202 final Collection<ModuleReference> moduleReferencesToCheck) {
203 return moduleReferenceRepository.identifyNewModuleReferences(moduleReferencesToCheck);
206 private Set<YangResourceEntity> synchronizeYangResources(
207 final Map<String, String> moduleReferenceNameToContentMap) {
208 final Map<String, YangResourceEntity> checksumToEntityMap = moduleReferenceNameToContentMap.entrySet().stream()
210 final String checksum = DigestUtils.sha256Hex(entry.getValue().getBytes(StandardCharsets.UTF_8));
211 final Map<String, String> moduleNameAndRevisionMap = createModuleNameAndRevisionMap(entry.getKey(),
213 final var yangResourceEntity = new YangResourceEntity();
214 yangResourceEntity.setFileName(entry.getKey());
215 yangResourceEntity.setContent(entry.getValue());
216 yangResourceEntity.setModuleName(moduleNameAndRevisionMap.get("moduleName"));
217 yangResourceEntity.setRevision(moduleNameAndRevisionMap.get("revision"));
218 yangResourceEntity.setChecksum(checksum);
219 return yangResourceEntity;
221 .collect(Collectors.toMap(
222 YangResourceEntity::getChecksum,
226 final List<YangResourceEntity> existingYangResourceEntities =
227 yangResourceRepository.findAllByChecksumIn(checksumToEntityMap.keySet());
228 existingYangResourceEntities.forEach(yangFile -> checksumToEntityMap.remove(yangFile.getChecksum()));
230 final Collection<YangResourceEntity> newYangResourceEntities = checksumToEntityMap.values();
231 if (!newYangResourceEntities.isEmpty()) {
233 yangResourceRepository.saveAll(newYangResourceEntities);
234 } catch (final DataIntegrityViolationException dataIntegrityViolationException) {
235 // Throw a CPS duplicated Yang resource exception if the cause of the error is a yang checksum
236 // database constraint violation.
237 // If it is not, then throw the original exception
238 final Optional<DuplicatedYangResourceException> convertedException =
239 convertToDuplicatedYangResourceException(
240 dataIntegrityViolationException, newYangResourceEntities);
241 convertedException.ifPresent(
243 int retryCount = RetrySynchronizationManager.getContext() == null ? 0
244 : RetrySynchronizationManager.getContext().getRetryCount();
245 log.warn("Cannot persist duplicated yang resource. System will attempt this method "
246 + "up to 5 times. Current retry count : {}", ++retryCount, e);
248 throw convertedException.isPresent() ? convertedException.get() : dataIntegrityViolationException;
252 return ImmutableSet.<YangResourceEntity>builder()
253 .addAll(existingYangResourceEntities)
254 .addAll(newYangResourceEntities)
258 private static Map<String, String> createModuleNameAndRevisionMap(final String sourceName, final String source) {
259 final Map<String, String> metaDataMap = new HashMap<>();
260 final var revisionSourceIdentifier =
261 createIdentifierFromSourceName(checkNotNull(sourceName));
263 final var tempYangTextSchemaSource = new YangTextSchemaSource(revisionSourceIdentifier) {
265 public Optional<String> getSymbolicName() {
266 return Optional.empty();
270 protected MoreObjects.ToStringHelper addToStringAttributes(
271 final MoreObjects.ToStringHelper toStringHelper) {
272 return toStringHelper;
276 public InputStream openStream() {
277 return new ByteArrayInputStream(source.getBytes(StandardCharsets.UTF_8));
281 final var dependencyInfo = YangModelDependencyInfo.forYangText(tempYangTextSchemaSource);
282 metaDataMap.put("moduleName", dependencyInfo.getName());
283 metaDataMap.put("revision", dependencyInfo.getFormattedRevision());
284 } catch (final YangSyntaxErrorException | IOException e) {
285 throw new ModelValidationException("Yang resource is invalid.",
286 String.format("Yang syntax validation failed for resource %s:%n%s", sourceName, e.getMessage()), e);
291 private static RevisionSourceIdentifier createIdentifierFromSourceName(final String sourceName) {
292 final var matcher = RFC6020_RECOMMENDED_FILENAME_PATTERN.matcher(sourceName);
293 if (matcher.matches()) {
294 return RevisionSourceIdentifier.create(matcher.group(1), Revision.of(matcher.group(2)));
296 return RevisionSourceIdentifier.create(sourceName);
300 * Convert the specified data integrity violation exception into a CPS duplicated Yang resource exception
301 * if the cause of the error is a yang checksum database constraint violation.
303 * @param originalException the original db exception.
304 * @param yangResourceEntities the collection of Yang resources involved in the db failure.
305 * @return an optional converted CPS duplicated Yang resource exception. The optional is empty if the original
306 * cause of the error is not a yang checksum database constraint violation.
308 private Optional<DuplicatedYangResourceException> convertToDuplicatedYangResourceException(
309 final DataIntegrityViolationException originalException,
310 final Collection<YangResourceEntity> yangResourceEntities) {
312 // The exception result
313 DuplicatedYangResourceException duplicatedYangResourceException = null;
315 final Throwable cause = originalException.getCause();
316 if (cause instanceof ConstraintViolationException) {
317 final ConstraintViolationException constraintException = (ConstraintViolationException) cause;
318 if (YANG_RESOURCE_CHECKSUM_CONSTRAINT_NAME.equals(constraintException.getConstraintName())) {
319 // Db constraint related to yang resource checksum uniqueness is not respected
320 final String checksumInError = getDuplicatedChecksumFromException(constraintException);
321 final String nameInError = getNameForChecksum(checksumInError, yangResourceEntities);
322 duplicatedYangResourceException =
323 new DuplicatedYangResourceException(nameInError, checksumInError, constraintException);
327 return Optional.ofNullable(duplicatedYangResourceException);
332 * Get the name of the yang resource having the specified checksum.
334 * @param checksum the checksum. Null is supported.
335 * @param yangResourceEntities the list of yang resources to search among.
336 * @return the name found or null if none.
338 private String getNameForChecksum(
339 final String checksum, final Collection<YangResourceEntity> yangResourceEntities) {
341 yangResourceEntities.stream()
342 .filter(entity -> StringUtils.equals(checksum, (entity.getChecksum())))
344 .map(YangResourceEntity::getFileName)
349 * Get the checksum that caused the constraint violation exception.
351 * @param exception the exception having the checksum in error.
352 * @return the checksum in error or null if not found.
354 private String getDuplicatedChecksumFromException(final ConstraintViolationException exception) {
355 String checksum = null;
356 final var matcher = CHECKSUM_EXCEPTION_PATTERN.matcher(exception.getSQLException().getMessage());
357 if (matcher.find() && matcher.groupCount() == 1) {
358 checksum = matcher.group(1);
363 private static ModuleReference toModuleReference(
364 final YangResourceModuleReference yangResourceModuleReference) {
365 return ModuleReference.builder()
366 .moduleName(yangResourceModuleReference.getModuleName())
367 .revision(yangResourceModuleReference.getRevision())
371 private static ModuleDefinition toModuleDefinition(final YangResourceEntity yangResourceEntity) {
372 return new ModuleDefinition(
373 yangResourceEntity.getModuleName(),
374 yangResourceEntity.getRevision(),
375 yangResourceEntity.getContent());
378 private static SchemaSet toSchemaSet(final SchemaSetEntity schemaSetEntity) {
379 return SchemaSet.builder().name(schemaSetEntity.getName())
380 .dataspaceName(schemaSetEntity.getDataspace().getName()).build();