2 * ============LICENSE_START=======================================================
3 * Copyright (C) 2021, 2023-2024 Nordix Foundation.
4 * Modifications Copyright (C) 2022 Bell Canada. All rights reserved.
5 * ================================================================================
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at
10 * http://www.apache.org/licenses/LICENSE-2.0
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
18 * SPDX-License-Identifier: Apache-2.0
19 * ============LICENSE_END=========================================================
22 package org.onap.policy.models.dao.impl;
24 import jakarta.persistence.EntityManager;
25 import jakarta.persistence.Persistence;
26 import jakarta.persistence.TypedQuery;
27 import java.util.Collection;
28 import java.util.Collections;
29 import java.util.List;
30 import lombok.RequiredArgsConstructor;
31 import org.apache.commons.lang3.StringUtils;
32 import org.onap.policy.models.base.PfConcept;
33 import org.onap.policy.models.base.PfConceptKey;
34 import org.onap.policy.models.base.PfModelException;
35 import org.onap.policy.models.base.PfReferenceKey;
36 import org.onap.policy.models.base.PfReferenceTimestampKey;
37 import org.onap.policy.models.base.PfTimestampKey;
38 import org.onap.policy.models.base.PfUtils;
39 import org.onap.policy.models.dao.DaoParameters;
40 import org.onap.policy.models.dao.PfDao;
41 import org.onap.policy.models.dao.PfFilter;
42 import org.onap.policy.models.dao.PfFilterFactory;
43 import org.onap.policy.models.dao.PfFilterParametersIntfc;
44 import org.slf4j.Logger;
45 import org.slf4j.LoggerFactory;
48 * The Class ProxyDao is an JPA implementation of the {@link ProxyDao} class for Policy Framework concepts
49 * ({@link PfConcept}). It uses the default JPA implementation in the jakarta {@link Persistence} class.
51 @RequiredArgsConstructor
52 public class ProxyDao implements PfDao {
53 private static final Logger LOGGER = LoggerFactory.getLogger(ProxyDao.class);
57 // Entity manager for JPA
58 private final EntityManager mg;
61 public void init(final DaoParameters daoParameters) throws PfModelException {
62 // Entity manager for JPA should be created at Service level
66 public final void close() {
67 // Entity manager for JPA should be close at Service level
71 public <T extends PfConcept> void create(final T obj) {
80 public <T extends PfConcept> void delete(final T obj) {
84 mg.remove(mg.contains(obj) ? obj : mg.merge(obj));
88 public <T extends PfConcept> void delete(final Class<T> someClass, final PfConceptKey key) {
93 mg.createQuery(setQueryTable(DELETE_BY_CONCEPT_KEY, someClass), someClass)
94 .setParameter(NAME, key.getName())
95 .setParameter(VERSION, key.getVersion())
101 public <T extends PfConcept> void delete(final Class<T> someClass, final PfReferenceKey key) {
106 mg.createQuery(setQueryTable(DELETE_BY_REFERENCE_KEY, someClass), someClass)
107 .setParameter(PARENT_NAME, key.getParentKeyName())
108 .setParameter(PARENT_VERSION, key.getParentKeyVersion())
109 .setParameter(LOCAL_NAME, key.getLocalName())
115 public <T extends PfConcept> void delete(final Class<T> someClass, final PfTimestampKey key) {
121 mg.createQuery(setQueryTable(DELETE_BY_TIMESTAMP_KEY, someClass), someClass)
122 .setParameter(NAME, key.getName())
123 .setParameter(VERSION, key.getVersion())
124 .setParameter(TIMESTAMP, key.getTimeStamp())
130 public <T extends PfConcept> void createCollection(final Collection<T> objs) {
131 if (objs == null || objs.isEmpty()) {
135 for (final T t : objs) {
141 public <T extends PfConcept> void deleteCollection(final Collection<T> objs) {
142 if (objs == null || objs.isEmpty()) {
146 for (final T t : objs) {
147 mg.remove(mg.contains(t) ? t : mg.merge(t));
152 public <T extends PfConcept> int deleteByConceptKey(final Class<T> someClass, final Collection<PfConceptKey> keys) {
153 if (keys == null || keys.isEmpty()) {
156 var deletedCount = 0;
158 for (final PfConceptKey key : keys) {
160 deletedCount += mg.createQuery(setQueryTable(DELETE_BY_CONCEPT_KEY, someClass), someClass)
161 .setParameter(NAME, key.getName())
162 .setParameter(VERSION, key.getVersion())
171 public <T extends PfConcept> int deleteByReferenceKey(final Class<T> someClass,
172 final Collection<PfReferenceKey> keys) {
173 if (keys == null || keys.isEmpty()) {
176 var deletedCount = 0;
178 for (final PfReferenceKey key : keys) {
180 deletedCount += mg.createQuery(setQueryTable(DELETE_BY_REFERENCE_KEY, someClass), someClass)
181 .setParameter(PARENT_NAME, key.getParentKeyName())
182 .setParameter(PARENT_VERSION, key.getParentKeyVersion())
183 .setParameter(LOCAL_NAME, key.getLocalName())
191 public <T extends PfConcept> void deleteAll(final Class<T> someClass) {
192 mg.createQuery(setQueryTable(DELETE_FROM_TABLE, someClass), someClass).executeUpdate();
196 public <T extends PfConcept> List<T> getFiltered(final Class<T> someClass, final String name,
197 final String version) {
199 return getAll(someClass);
202 if (version == null) {
203 return getAllVersions(someClass, name);
206 var foundConcept = get(someClass, new PfConceptKey(name, version));
208 return (foundConcept == null ? Collections.emptyList() : Collections.singletonList(foundConcept));
212 public <T extends PfConcept> List<T> getFiltered(final Class<T> someClass, PfFilterParametersIntfc filterParams) {
214 PfFilter filter = new PfFilterFactory().createFilter(someClass);
215 var filterQueryString =
216 SELECT_FROM_TABLE + filter.genWhereClause(filterParams) + filter.genOrderClause(filterParams);
218 TypedQuery<T> query = mg.createQuery(setQueryTable(filterQueryString, someClass), someClass);
219 filter.setParams(query, filterParams);
221 LOGGER.debug("filterQueryString is \"{}\"", filterQueryString);
222 return query.getResultList();
226 public <T extends PfConcept> T get(final Class<T> someClass, final PfConceptKey key) {
227 return genericGet(someClass, key);
231 public <T extends PfConcept> T get(final Class<T> someClass, final PfReferenceKey key) {
232 return genericGet(someClass, key);
236 public <T extends PfConcept> T get(final Class<T> someClass, final PfTimestampKey key) {
237 return genericGet(someClass, key);
241 public <T extends PfConcept> T get(final Class<T> someClass, final PfReferenceTimestampKey key) {
242 return genericGet(someClass, key);
245 private <T extends PfConcept> T genericGet(final Class<T> someClass, final Object key) {
246 if (someClass == null) {
250 final var t = mg.find(someClass, key);
251 return checkAndReturn(someClass, t);
255 public <T extends PfConcept> List<T> getAll(final Class<T> someClass) {
256 if (someClass == null) {
257 return Collections.emptyList();
260 return mg.createQuery(setQueryTable(SELECT_FROM_TABLE, someClass), someClass).getResultList();
264 public <T extends PfConcept> List<T> getAll(final Class<T> someClass, final PfConceptKey parentKey) {
265 if (someClass == null) {
266 return Collections.emptyList();
270 return mg.createQuery(setQueryTable(SELECT_ALL_FOR_PARENT, someClass), someClass)
271 .setParameter(PARENT_NAME, parentKey.getName())
272 .setParameter(PARENT_VERSION, parentKey.getVersion())
278 public <T extends PfConcept> List<T> getAll(Class<T> someClass, String orderBy, Integer numRecords) {
280 if (someClass == null) {
281 return Collections.emptyList();
284 String query = setQueryTable(SELECT_FROM_TABLE, someClass);
286 if (StringUtils.isNotBlank(orderBy)) {
287 query = query.concat(ORDER_BY).concat(orderBy);
290 return mg.createQuery(query, someClass).setMaxResults(numRecords).getResultList();
294 public <T extends PfConcept> List<T> getAllVersionsByParent(final Class<T> someClass, final String parentKeyName) {
295 if (someClass == null || parentKeyName == null) {
296 return Collections.emptyList();
300 return mg.createQuery(setQueryTable(SELECT_ALL_VERSIONS_FOR_PARENT, someClass), someClass)
301 .setParameter(PARENT_NAME, parentKeyName)
307 public <T extends PfConcept> List<T> getAllVersions(final Class<T> someClass, final String conceptName) {
308 if (someClass == null || conceptName == null) {
309 return Collections.emptyList();
313 return mg.createQuery(setQueryTable(SELECT_ALL_VERSIONS, someClass), someClass)
314 .setParameter(NAME, conceptName)
320 public <T extends PfConcept> T getConcept(final Class<T> someClass, final PfConceptKey key) {
321 if (someClass == null || key == null) {
326 var ret = mg.createQuery(setQueryTable(SELECT_BY_CONCEPT_KEY, someClass), someClass)
327 .setParameter(NAME, key.getName())
328 .setParameter(VERSION, key.getVersion())
332 return getSingleResult(someClass, key.getId(), ret);
336 public <T extends PfConcept> T getConcept(final Class<T> someClass, final PfReferenceKey key) {
337 if (someClass == null || key == null) {
342 var ret = mg.createQuery(setQueryTable(SELECT_BY_REFERENCE_KEY, someClass), someClass)
343 .setParameter(PARENT_NAME, key.getParentKeyName())
344 .setParameter(PARENT_VERSION, key.getParentKeyVersion())
345 .setParameter(LOCAL_NAME, key.getLocalName())
349 return getSingleResult(someClass, key.getId(), ret);
353 public <T extends PfConcept> T update(final T obj) {
354 var ret = mg.merge(obj);
360 public <T extends PfConcept> long size(final Class<T> someClass) {
361 if (someClass == null) {
367 * The invoking code only passes well-known classes into this method, thus
368 * disabling the sonar about SQL injection.
370 size = mg.createQuery("SELECT COUNT(c) FROM " + someClass.getSimpleName() + " c", Long.class) // NOSONAR
376 * Add the table to a query string.
378 * @param queryString the query string
379 * @param tableClass the class name of the table
380 * @return the updated query string
382 private <T extends PfConcept> String setQueryTable(final String queryString, final Class<T> tableClass) {
383 return queryString.replace(TABLE_TOKEN, tableClass.getSimpleName());
387 * Check that a query returned one and only one entry and return that entry.
389 * @param someClass the class being searched for
390 * @param searchFilter the search filter
391 * @param resultList the result list returned by the query
392 * @return the single unique result
394 private <T extends PfConcept> T getSingleResult(final Class<T> someClass, final String searchFilter,
395 List<T> resultList) {
396 if (resultList == null || resultList.isEmpty()) {
399 if (resultList.size() > 1) {
400 throw new IllegalArgumentException("More than one result was returned query on " + someClass
401 + " with filter " + searchFilter + ": " + resultList);
403 return resultList.get(0);
407 * check the result get from database and return the object.
409 * @param <T> the type of the object to get, a subclass of {@link PfConcept}
410 * @param someClass the class of the object to get, a subclass of {@link PfConcept}
411 * @param objToCheck the object that was retrieved from the database
412 * @return the checked object or null
414 private <T extends PfConcept> T checkAndReturn(final Class<T> someClass, final T objToCheck) {
415 if (objToCheck != null) {
417 return PfUtils.makeCopy(objToCheck);
418 } catch (final Exception e) {
419 LOGGER.warn(CLONE_ERR_MSG, someClass.getName(), e);