/*
- * ============LICENSE_START=======================================================
+ * ============LICENSE_START=======================================================
* Copyright (C) 2020 Nordix Foundation
- * Modifications Copyright (C) 2020 Bell Canada. All rights reserved.
+ * Modifications Copyright (C) 2020-2021 Bell Canada.
+ * Modifications Copyright (C) 2021 Pantheon.tech
* ================================================================================
* 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.
import java.util.Collection;
import java.util.List;
import java.util.Map;
+import java.util.Optional;
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.apache.commons.codec.digest.DigestUtils;
+import org.apache.commons.lang3.StringUtils;
+import org.hibernate.exception.ConstraintViolationException;
+import org.onap.cps.spi.CascadeDeleteAllowed;
import org.onap.cps.spi.CpsAdminPersistenceService;
import org.onap.cps.spi.CpsModulePersistenceService;
-import org.onap.cps.spi.entities.DataspaceEntity;
+import org.onap.cps.spi.entities.AnchorEntity;
import org.onap.cps.spi.entities.SchemaSetEntity;
import org.onap.cps.spi.entities.YangResourceEntity;
-import org.onap.cps.spi.exceptions.SchemaSetAlreadyDefinedException;
-import org.onap.cps.spi.model.Anchor;
+import org.onap.cps.spi.exceptions.AlreadyDefinedException;
+import org.onap.cps.spi.exceptions.DuplicatedYangResourceException;
+import org.onap.cps.spi.exceptions.SchemaSetInUseException;
+import org.onap.cps.spi.repository.AnchorRepository;
import org.onap.cps.spi.repository.DataspaceRepository;
+import org.onap.cps.spi.repository.FragmentRepository;
import org.onap.cps.spi.repository.SchemaSetRepository;
import org.onap.cps.spi.repository.YangResourceRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.dao.DataIntegrityViolationException;
+import org.springframework.retry.annotation.Backoff;
+import org.springframework.retry.annotation.Retryable;
import org.springframework.stereotype.Component;
-import org.springframework.util.DigestUtils;
+
@Component
+@Slf4j
public class CpsModulePersistenceServiceImpl implements CpsModulePersistenceService {
+ private static final String YANG_RESOURCE_CHECKSUM_CONSTRAINT_NAME = "yang_resource_checksum_key";
+ private static final Pattern CHECKSUM_EXCEPTION_PATTERN = Pattern.compile(".*\\(checksum\\)=\\((\\w+)\\).*");
+
@Autowired
private YangResourceRepository yangResourceRepository;
@Autowired
private DataspaceRepository dataspaceRepository;
+ @Autowired
+ private AnchorRepository anchorRepository;
+
+ @Autowired
+ private FragmentRepository fragmentRepository;
+
@Autowired
private CpsAdminPersistenceService cpsAdminPersistenceService;
@Override
@Transactional
+ // A retry is made to store the schema set if it fails because of duplicated yang resource exception that
+ // can occur in case of specific concurrent requests.
+ @Retryable(value = DuplicatedYangResourceException.class, maxAttempts = 2, backoff = @Backoff(delay = 500))
public void storeSchemaSet(final String dataspaceName, final String schemaSetName,
final Map<String, String> yangResourcesNameToContentMap) {
- final DataspaceEntity dataspaceEntity = dataspaceRepository.getByName(dataspaceName);
+ final var dataspaceEntity = dataspaceRepository.getByName(dataspaceName);
final Set<YangResourceEntity> yangResourceEntities = synchronizeYangResources(yangResourcesNameToContentMap);
- final SchemaSetEntity schemaSetEntity = new SchemaSetEntity();
+ final var schemaSetEntity = new SchemaSetEntity();
schemaSetEntity.setName(schemaSetName);
schemaSetEntity.setDataspace(dataspaceEntity);
schemaSetEntity.setYangResources(yangResourceEntities);
try {
schemaSetRepository.save(schemaSetEntity);
} catch (final DataIntegrityViolationException e) {
- throw new SchemaSetAlreadyDefinedException(dataspaceName, schemaSetName, e);
+ throw AlreadyDefinedException.forSchemaSet(schemaSetName, dataspaceName, e);
}
}
private Set<YangResourceEntity> synchronizeYangResources(final Map<String, String> yangResourcesNameToContentMap) {
final Map<String, YangResourceEntity> checksumToEntityMap = yangResourcesNameToContentMap.entrySet().stream()
.map(entry -> {
- final String checksum = DigestUtils.md5DigestAsHex(entry.getValue().getBytes(StandardCharsets.UTF_8));
- final YangResourceEntity yangResourceEntity = new YangResourceEntity();
+ final String checksum = DigestUtils.sha256Hex(entry.getValue().getBytes(StandardCharsets.UTF_8));
+ final var yangResourceEntity = new YangResourceEntity();
yangResourceEntity.setName(entry.getKey());
yangResourceEntity.setContent(entry.getValue());
yangResourceEntity.setChecksum(checksum);
final Collection<YangResourceEntity> newYangResourceEntities = checksumToEntityMap.values();
if (!newYangResourceEntities.isEmpty()) {
- yangResourceRepository.saveAll(newYangResourceEntities);
+ try {
+ yangResourceRepository.saveAll(newYangResourceEntities);
+ } catch (final DataIntegrityViolationException dataIntegrityViolationException) {
+ // Throw a CPS duplicated Yang resource exception if the cause of the error is a yang checksum
+ // database constraint violation.
+ // If it is not, then throw the original exception
+ final Optional<DuplicatedYangResourceException> convertedException =
+ convertToDuplicatedYangResourceException(
+ dataIntegrityViolationException, newYangResourceEntities);
+ convertedException.ifPresent(
+ e -> log.warn(
+ "Cannot persist duplicated yang resource. "
+ + "A total of 2 attempts to store the schema set are planned.", e));
+ throw convertedException.isPresent() ? convertedException.get() : dataIntegrityViolationException;
+ }
}
return ImmutableSet.<YangResourceEntity>builder()
.build();
}
+ /**
+ * Convert the specified data integrity violation exception into a CPS duplicated Yang resource exception
+ * if the cause of the error is a yang checksum database constraint violation.
+ * @param originalException the original db exception.
+ * @param yangResourceEntities the collection of Yang resources involved in the db failure.
+ * @return an optional converted CPS duplicated Yang resource exception. The optional is empty if the original
+ * cause of the error is not a yang checksum database constraint violation.
+ */
+ private Optional<DuplicatedYangResourceException> convertToDuplicatedYangResourceException(
+ final DataIntegrityViolationException originalException,
+ final Collection<YangResourceEntity> yangResourceEntities) {
+
+ // The exception result
+ DuplicatedYangResourceException duplicatedYangResourceException = null;
+
+ final Throwable cause = originalException.getCause();
+ if (cause instanceof ConstraintViolationException) {
+ final ConstraintViolationException constraintException = (ConstraintViolationException) cause;
+ if (YANG_RESOURCE_CHECKSUM_CONSTRAINT_NAME.equals(constraintException.getConstraintName())) {
+ // Db constraint related to yang resource checksum uniqueness is not respected
+ final String checksumInError = getDuplicatedChecksumFromException(constraintException);
+ final String nameInError = getNameForChecksum(checksumInError, yangResourceEntities);
+ duplicatedYangResourceException =
+ new DuplicatedYangResourceException(nameInError, checksumInError, constraintException);
+ }
+ }
+
+ return Optional.ofNullable(duplicatedYangResourceException);
+
+ }
+
+ /**
+ * Get the checksum that caused the constraint violation exception.
+ * @param exception the exception having the checksum in error.
+ * @return the checksum in error or null if not found.
+ */
+ private String getDuplicatedChecksumFromException(final ConstraintViolationException exception) {
+ String checksum = null;
+ final var matcher = CHECKSUM_EXCEPTION_PATTERN.matcher(exception.getSQLException().getMessage());
+ if (matcher.find() && matcher.groupCount() == 1) {
+ checksum = matcher.group(1);
+ }
+ return checksum;
+ }
+
+ /**
+ * Get the name of the yang resource having the specified checksum.
+ * @param checksum the checksum. Null is supported.
+ * @param yangResourceEntities the list of yang resources to search among.
+ * @return the name found or null if none.
+ */
+ private String getNameForChecksum(
+ final String checksum, final Collection<YangResourceEntity> yangResourceEntities) {
+ return
+ yangResourceEntities.stream()
+ .filter(entity -> StringUtils.equals(checksum, (entity.getChecksum())))
+ .findFirst()
+ .map(YangResourceEntity::getName)
+ .orElse(null);
+ }
+
@Override
public Map<String, String> getYangSchemaResources(final String dataspaceName, final String schemaSetName) {
- final DataspaceEntity dataspaceEntity = dataspaceRepository.getByName(dataspaceName);
- final SchemaSetEntity schemaSetEntity =
+ final var dataspaceEntity = dataspaceRepository.getByName(dataspaceName);
+ final var schemaSetEntity =
schemaSetRepository.getByDataspaceAndName(dataspaceEntity, schemaSetName);
return schemaSetEntity.getYangResources().stream().collect(
Collectors.toMap(YangResourceEntity::getName, YangResourceEntity::getContent));
}
@Override
- public Map<String, String> getYangSchemaSetResources(final String dataspaceName,
- final String anchorName) {
- final Anchor anchor = cpsAdminPersistenceService.getAnchor(dataspaceName, anchorName);
+ public Map<String, String> getYangSchemaSetResources(final String dataspaceName, final String anchorName) {
+ final var anchor = cpsAdminPersistenceService.getAnchor(dataspaceName, anchorName);
return getYangSchemaResources(dataspaceName, anchor.getSchemaSetName());
}
+
+ @Override
+ @Transactional
+ public void deleteSchemaSet(final String dataspaceName, final String schemaSetName,
+ final CascadeDeleteAllowed cascadeDeleteAllowed) {
+ final var dataspaceEntity = dataspaceRepository.getByName(dataspaceName);
+ final var schemaSetEntity =
+ schemaSetRepository.getByDataspaceAndName(dataspaceEntity, schemaSetName);
+
+ final Collection<AnchorEntity> anchorEntities = anchorRepository.findAllBySchemaSet(schemaSetEntity);
+ if (!anchorEntities.isEmpty()) {
+ if (cascadeDeleteAllowed != CascadeDeleteAllowed.CASCADE_DELETE_ALLOWED) {
+ throw new SchemaSetInUseException(dataspaceName, schemaSetName);
+ }
+ fragmentRepository.deleteByAnchorIn(anchorEntities);
+ anchorRepository.deleteAll(anchorEntities);
+ }
+ schemaSetRepository.delete(schemaSetEntity);
+ yangResourceRepository.deleteOrphans();
+ }
}
Code Review / cps.git / blobdiff