2 * ============LICENSE_START=======================================================
3 * Copyright (C) 2022-2024 Nordix Foundation
4 * Modifications Copyright (C) 2023 TechMahindra Ltd.
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.cps.spi.repository;
24 import jakarta.persistence.EntityManager;
25 import jakarta.persistence.PersistenceContext;
26 import jakarta.persistence.Query;
27 import java.util.Collections;
28 import java.util.HashMap;
29 import java.util.LinkedList;
30 import java.util.List;
32 import java.util.Queue;
33 import lombok.RequiredArgsConstructor;
34 import lombok.extern.slf4j.Slf4j;
35 import org.onap.cps.cpspath.parser.CpsPathPrefixType;
36 import org.onap.cps.cpspath.parser.CpsPathQuery;
37 import org.onap.cps.spi.PaginationOption;
38 import org.onap.cps.spi.entities.AnchorEntity;
39 import org.onap.cps.spi.entities.DataspaceEntity;
40 import org.onap.cps.spi.entities.FragmentEntity;
41 import org.onap.cps.spi.exceptions.CpsPathException;
42 import org.onap.cps.spi.utils.EscapeUtils;
43 import org.springframework.stereotype.Component;
45 @RequiredArgsConstructor
48 public class FragmentQueryBuilder {
49 private static final AnchorEntity ACROSS_ALL_ANCHORS = null;
52 private EntityManager entityManager;
55 * Create a sql query to retrieve by anchor(id) and cps path.
57 * @param anchorEntity the anchor
58 * @param cpsPathQuery the cps path query to be transformed into a sql query
59 * @return a executable query object
61 public Query getQueryForAnchorAndCpsPath(final AnchorEntity anchorEntity, final CpsPathQuery cpsPathQuery) {
62 return getQueryForDataspaceOrAnchorAndCpsPath(anchorEntity.getDataspace(),
63 anchorEntity, cpsPathQuery, Collections.emptyList());
67 * Create a sql query to retrieve by cps path.
69 * @param dataspaceEntity the dataspace
70 * @param cpsPathQuery the cps path query to be transformed into a sql query
71 * @return a executable query object
73 public Query getQueryForDataspaceAndCpsPath(final DataspaceEntity dataspaceEntity,
74 final CpsPathQuery cpsPathQuery,
75 final List<Long> anchorIdsForPagination) {
76 return getQueryForDataspaceOrAnchorAndCpsPath(dataspaceEntity, ACROSS_ALL_ANCHORS,
77 cpsPathQuery, anchorIdsForPagination);
81 * Get query for dataspace, cps path, page index and page size.
82 * @param dataspaceEntity data space entity
83 * @param cpsPathQuery cps path query
84 * @param paginationOption pagination option
85 * @return query for given dataspace, cps path and pagination parameters
87 public Query getQueryForAnchorIdsForPagination(final DataspaceEntity dataspaceEntity,
88 final CpsPathQuery cpsPathQuery,
89 final PaginationOption paginationOption) {
90 final StringBuilder sqlStringBuilder = new StringBuilder();
91 final Map<String, Object> queryParameters = new HashMap<>();
92 sqlStringBuilder.append("SELECT distinct(fragment.anchor_id) FROM fragment "
93 + "JOIN anchor ON anchor.id = fragment.anchor_id WHERE dataspace_id = :dataspaceId");
94 queryParameters.put("dataspaceId", dataspaceEntity.getId());
95 addAbsoluteParentXpathSearchCondition(cpsPathQuery, sqlStringBuilder, queryParameters, ACROSS_ALL_ANCHORS);
96 addXpathSearchCondition(cpsPathQuery, sqlStringBuilder, queryParameters);
97 addLeafConditions(cpsPathQuery, sqlStringBuilder);
98 addTextFunctionCondition(cpsPathQuery, sqlStringBuilder, queryParameters);
99 addContainsFunctionCondition(cpsPathQuery, sqlStringBuilder, queryParameters);
100 if (PaginationOption.NO_PAGINATION != paginationOption) {
101 sqlStringBuilder.append(" ORDER BY fragment.anchor_id");
102 addPaginationCondition(sqlStringBuilder, queryParameters, paginationOption);
105 final Query query = entityManager.createNativeQuery(sqlStringBuilder.toString());
106 setQueryParameters(query, queryParameters);
110 private Query getQueryForDataspaceOrAnchorAndCpsPath(final DataspaceEntity dataspaceEntity,
111 final AnchorEntity anchorEntity,
112 final CpsPathQuery cpsPathQuery,
113 final List<Long> anchorIdsForPagination) {
114 final StringBuilder sqlStringBuilder = new StringBuilder();
115 final Map<String, Object> queryParameters = new HashMap<>();
117 if (anchorEntity == ACROSS_ALL_ANCHORS) {
118 sqlStringBuilder.append("SELECT fragment.* FROM fragment JOIN anchor ON anchor.id = fragment.anchor_id"
119 + " WHERE dataspace_id = :dataspaceId");
120 queryParameters.put("dataspaceId", dataspaceEntity.getId());
121 if (!anchorIdsForPagination.isEmpty()) {
122 sqlStringBuilder.append(" AND anchor_id IN (:anchorIdsForPagination)");
123 queryParameters.put("anchorIdsForPagination", anchorIdsForPagination);
126 sqlStringBuilder.append("SELECT * FROM fragment WHERE anchor_id = :anchorId");
127 queryParameters.put("anchorId", anchorEntity.getId());
129 addAbsoluteParentXpathSearchCondition(cpsPathQuery, sqlStringBuilder, queryParameters, anchorEntity);
130 addXpathSearchCondition(cpsPathQuery, sqlStringBuilder, queryParameters);
131 addLeafConditions(cpsPathQuery, sqlStringBuilder);
132 addTextFunctionCondition(cpsPathQuery, sqlStringBuilder, queryParameters);
133 addContainsFunctionCondition(cpsPathQuery, sqlStringBuilder, queryParameters);
135 final Query query = entityManager.createNativeQuery(sqlStringBuilder.toString(), FragmentEntity.class);
136 setQueryParameters(query, queryParameters);
140 private static void addXpathSearchCondition(final CpsPathQuery cpsPathQuery,
141 final StringBuilder sqlStringBuilder,
142 final Map<String, Object> queryParameters) {
143 sqlStringBuilder.append(" AND (xpath LIKE :escapedXpath OR "
144 + "(xpath LIKE :escapedXpath||'[@%]' AND xpath NOT LIKE :escapedXpath||'[@%]/%[@%]'))");
145 if (CpsPathPrefixType.ABSOLUTE.equals(cpsPathQuery.getCpsPathPrefixType())) {
146 queryParameters.put("escapedXpath", EscapeUtils.escapeForSqlLike(cpsPathQuery.getXpathPrefix()));
148 queryParameters.put("escapedXpath", "%/" + EscapeUtils.escapeForSqlLike(cpsPathQuery.getDescendantName()));
152 private static void addAbsoluteParentXpathSearchCondition(final CpsPathQuery cpsPathQuery,
153 final StringBuilder sqlStringBuilder,
154 final Map<String, Object> queryParameters,
155 final AnchorEntity anchorEntity) {
156 if (CpsPathPrefixType.ABSOLUTE.equals(cpsPathQuery.getCpsPathPrefixType())) {
157 if (cpsPathQuery.getNormalizedParentPath().isEmpty()) {
158 sqlStringBuilder.append(" AND parent_id IS NULL");
160 if (anchorEntity == ACROSS_ALL_ANCHORS) {
161 sqlStringBuilder.append(" AND parent_id IN (SELECT id FROM fragment WHERE xpath = :parentXpath)");
163 sqlStringBuilder.append(" AND parent_id = (SELECT id FROM fragment WHERE xpath = :parentXpath"
164 + " AND anchor_id = :anchorId)");
166 queryParameters.put("parentXpath", cpsPathQuery.getNormalizedParentPath());
171 private static void addPaginationCondition(final StringBuilder sqlStringBuilder,
172 final Map<String, Object> queryParameters,
173 final PaginationOption paginationOption) {
174 final Integer offset = (paginationOption.getPageIndex() - 1) * paginationOption.getPageSize();
175 sqlStringBuilder.append(" LIMIT :pageSize OFFSET :offset");
176 queryParameters.put("pageSize", paginationOption.getPageSize());
177 queryParameters.put("offset", offset);
180 private static Integer getTextValueAsInt(final CpsPathQuery cpsPathQuery) {
182 return Integer.parseInt(cpsPathQuery.getTextFunctionConditionValue());
183 } catch (final NumberFormatException e) {
188 private void addLeafConditions(final CpsPathQuery cpsPathQuery, final StringBuilder sqlStringBuilder) {
189 if (cpsPathQuery.hasLeafConditions()) {
190 queryLeafConditions(cpsPathQuery, sqlStringBuilder);
194 private void queryLeafConditions(final CpsPathQuery cpsPathQuery, final StringBuilder sqlStringBuilder) {
195 sqlStringBuilder.append(" AND (");
196 final Queue<String> booleanOperatorsQueue = new LinkedList<>(cpsPathQuery.getBooleanOperators());
197 final Queue<String> comparativeOperatorQueue = new LinkedList<>(cpsPathQuery.getComparativeOperators());
198 cpsPathQuery.getLeavesData().forEach(leaf -> {
199 final String nextComparativeOperator = comparativeOperatorQueue.poll();
200 if (leaf.getValue() instanceof Integer) {
201 sqlStringBuilder.append("(attributes ->> '").append(leaf.getName()).append("')\\:\\:int");
202 sqlStringBuilder.append(nextComparativeOperator);
203 sqlStringBuilder.append(leaf.getValue());
205 if ("=".equals(nextComparativeOperator)) {
206 final String leafValueAsText = leaf.getValue().toString();
207 sqlStringBuilder.append("attributes ->> '").append(leaf.getName()).append("'");
208 sqlStringBuilder.append(" = '");
209 sqlStringBuilder.append(EscapeUtils.escapeForSqlStringLiteral(leafValueAsText));
210 sqlStringBuilder.append("'");
212 throw new CpsPathException(" can use only " + nextComparativeOperator + " with integer ");
215 if (!booleanOperatorsQueue.isEmpty()) {
216 sqlStringBuilder.append(" ");
217 sqlStringBuilder.append(booleanOperatorsQueue.poll());
218 sqlStringBuilder.append(" ");
221 sqlStringBuilder.append(")");
224 private static void addTextFunctionCondition(final CpsPathQuery cpsPathQuery,
225 final StringBuilder sqlStringBuilder,
226 final Map<String, Object> queryParameters) {
227 if (cpsPathQuery.hasTextFunctionCondition()) {
228 sqlStringBuilder.append(" AND (");
229 sqlStringBuilder.append("attributes @> jsonb_build_object(:textLeafName, :textValue)");
231 .append(" OR attributes @> jsonb_build_object(:textLeafName, json_build_array(:textValue))");
232 queryParameters.put("textLeafName", cpsPathQuery.getTextFunctionConditionLeafName());
233 queryParameters.put("textValue", cpsPathQuery.getTextFunctionConditionValue());
234 final Integer textValueAsInt = getTextValueAsInt(cpsPathQuery);
235 if (textValueAsInt != null) {
236 sqlStringBuilder.append(" OR attributes @> jsonb_build_object(:textLeafName, :textValueAsInt)");
238 .append(" OR attributes @> jsonb_build_object(:textLeafName, json_build_array(:textValueAsInt))");
239 queryParameters.put("textValueAsInt", textValueAsInt);
241 sqlStringBuilder.append(")");
245 private static void addContainsFunctionCondition(final CpsPathQuery cpsPathQuery,
246 final StringBuilder sqlStringBuilder,
247 final Map<String, Object> queryParameters) {
248 if (cpsPathQuery.hasContainsFunctionCondition()) {
249 sqlStringBuilder.append(" AND attributes ->> :containsLeafName LIKE CONCAT('%',:containsValue,'%') ");
250 queryParameters.put("containsLeafName", cpsPathQuery.getContainsFunctionConditionLeafName());
251 queryParameters.put("containsValue",
252 EscapeUtils.escapeForSqlLike(cpsPathQuery.getContainsFunctionConditionValue()));
256 private static void setQueryParameters(final Query query, final Map<String, Object> queryParameters) {
257 for (final Map.Entry<String, Object> queryParameter : queryParameters.entrySet()) {
258 query.setParameter(queryParameter.getKey(), queryParameter.getValue());