2 * ============LICENSE_START=======================================================
3 * Copyright (C) 2022 Nordix Foundation.
4 * ================================================================================
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
17 * SPDX-License-Identifier: Apache-2.0
18 * ============LICENSE_END=========================================================
21 package org.onap.cps.spi.repository;
23 import java.util.ArrayList;
24 import java.util.Collection;
25 import java.util.Collections;
26 import java.util.List;
27 import java.util.UUID;
28 import javax.persistence.EntityManager;
29 import javax.persistence.PersistenceContext;
30 import lombok.SneakyThrows;
31 import lombok.extern.slf4j.Slf4j;
32 import org.onap.cps.spi.model.ModuleReference;
33 import org.springframework.transaction.annotation.Transactional;
37 public class ModuleReferenceRepositoryImpl implements ModuleReferenceQuery {
40 private EntityManager entityManager;
44 public Collection<ModuleReference> identifyNewModuleReferences(
45 final Collection<ModuleReference> moduleReferencesToCheck) {
47 if (moduleReferencesToCheck == null || moduleReferencesToCheck.isEmpty()) {
48 return Collections.EMPTY_LIST;
51 final String tempTableName = "moduleReferencesToCheckTemp"
52 + UUID.randomUUID().toString().replaceAll("-", "");
54 createTemporaryTable(tempTableName);
55 insertDataIntoTable(tempTableName, moduleReferencesToCheck);
57 return identifyNewModuleReferencesForCmHandle(tempTableName);
60 private void createTemporaryTable(final String tempTableName) {
61 final StringBuilder sqlStringBuilder = new StringBuilder("CREATE TEMPORARY TABLE " + tempTableName + "(");
62 sqlStringBuilder.append(" id INT GENERATED ALWAYS AS IDENTITY PRIMARY KEY,");
63 sqlStringBuilder.append(" module_name varchar NOT NULL,");
64 sqlStringBuilder.append(" revision varchar NOT NULL");
65 sqlStringBuilder.append(");");
67 entityManager.createNativeQuery(sqlStringBuilder.toString()).executeUpdate();
70 private void insertDataIntoTable(final String tempTableName, final Collection<ModuleReference> moduleReferences) {
71 final StringBuilder sqlStringBuilder = new StringBuilder("INSERT INTO " + tempTableName);
72 sqlStringBuilder.append(" (module_name, revision) ");
73 sqlStringBuilder.append(" VALUES ");
75 for (final ModuleReference moduleReference : moduleReferences) {
76 sqlStringBuilder.append("('");
77 sqlStringBuilder.append(moduleReference.getModuleName());
78 sqlStringBuilder.append("', '");
79 sqlStringBuilder.append(moduleReference.getRevision());
80 sqlStringBuilder.append("'),");
83 // replace last ',' with ';'
84 sqlStringBuilder.replace(sqlStringBuilder.length() - 1, sqlStringBuilder.length(), ";");
86 entityManager.createNativeQuery(sqlStringBuilder.toString()).executeUpdate();
89 private Collection<ModuleReference> identifyNewModuleReferencesForCmHandle(final String tempTableName) {
90 final String sql = String.format(
91 "SELECT %1$s.module_name, %1$s.revision"
92 + " FROM %1$s LEFT JOIN yang_resource"
93 + " ON yang_resource.module_name=%1$s.module_name"
94 + " AND yang_resource.revision=%1$s.revision"
95 + " WHERE yang_resource.module_name IS NULL;", tempTableName);
97 final List<Object[]> resultsAsObjects =
98 entityManager.createNativeQuery(sql).getResultList();
100 final List<ModuleReference> resultsAsModuleReferences = new ArrayList<>(resultsAsObjects.size());
101 for (final Object[] row : resultsAsObjects) {
102 resultsAsModuleReferences.add(new ModuleReference((String) row[0], (String) row[1]));
105 return resultsAsModuleReferences;