cps-ri/src/main/java/org/onap/cps/spi/repository/FragmentNativeRepositoryImpl.java

   1 /*
   2  *  ============LICENSE_START=======================================================
   3  *  Copyright (C) 2023 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
   8  *
   9  *        http://www.apache.org/licenses/LICENSE-2.0
  10  *
  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.
  16  *
  17  *  SPDX-License-Identifier: Apache-2.0
  18  *  ============LICENSE_END=========================================================
  19  */
  20
  21 package org.onap.cps.spi.repository;
  22
  23 import java.util.Collection;
  24 import javax.persistence.EntityManager;
  25 import javax.persistence.PersistenceContext;
  26 import lombok.RequiredArgsConstructor;
  27
  28 @RequiredArgsConstructor
  29 public class FragmentNativeRepositoryImpl implements FragmentNativeRepository {
  30
  31     private static final String DROP_FRAGMENT_CONSTRAINT
  32             = "ALTER TABLE fragment DROP CONSTRAINT fragment_parent_id_fkey;";
  33     private static final String ADD_FRAGMENT_CONSTRAINT_WITH_CASCADE
  34             = "ALTER TABLE fragment ADD CONSTRAINT fragment_parent_id_fkey FOREIGN KEY (parent_id) "
  35             + "REFERENCES fragment (id) ON DELETE CASCADE;";
  36     private static final String ADD_ORIGINAL_FRAGMENT_CONSTRAINT
  37             = "ALTER TABLE fragment ADD CONSTRAINT fragment_parent_id_fkey FOREIGN KEY (parent_id) "
  38             + "REFERENCES fragment (id) ON DELETE NO ACTION;";
  39
  40     @PersistenceContext
  41     private final EntityManager entityManager;
  42
  43     private final TempTableCreator tempTableCreator;
  44
  45     @Override
  46     public void deleteFragmentEntity(final long fragmentEntityId) {
  47         entityManager.createNativeQuery(
  48                 DROP_FRAGMENT_CONSTRAINT
  49                     + ADD_FRAGMENT_CONSTRAINT_WITH_CASCADE
  50                     + "DELETE FROM fragment WHERE id = ?;"
  51                     + DROP_FRAGMENT_CONSTRAINT
  52                     + ADD_ORIGINAL_FRAGMENT_CONSTRAINT)
  53             .setParameter(1, fragmentEntityId)
  54             .executeUpdate();
  55     }
  56
  57     @Override
  58     // Accept security hotspot as temporary table name in SQL query is created internally, not from user input.
  59     @SuppressWarnings("squid:S2077")
  60     public void deleteByAnchorIdAndXpaths(final int anchorId, final Collection<String> xpaths) {
  61         if (!xpaths.isEmpty()) {
  62             final String tempTableName = tempTableCreator.createTemporaryTable("xpathsToDelete", xpaths, "xpath");
  63             entityManager.createNativeQuery(
  64                     DROP_FRAGMENT_CONSTRAINT
  65                         + ADD_FRAGMENT_CONSTRAINT_WITH_CASCADE
  66                         + "DELETE FROM fragment f USING " + tempTableName + " t"
  67                         + " WHERE f.anchor_id = :anchorId AND f.xpath = t.xpath;"
  68                         + DROP_FRAGMENT_CONSTRAINT
  69                         + ADD_ORIGINAL_FRAGMENT_CONSTRAINT)
  70                 .setParameter("anchorId", anchorId)
  71                 .executeUpdate();
  72         }
  73     }
  74
  75     @Override
  76     // Accept security hotspot as temporary table name in SQL query is created internally, not from user input.
  77     @SuppressWarnings("squid:S2077")
  78     public void deleteListsByAnchorIdAndXpaths(final int anchorId, final Collection<String> xpaths) {
  79         if (!xpaths.isEmpty()) {
  80             final String tempTableName = tempTableCreator.createTemporaryTable("xpathsToDelete", xpaths, "xpath");
  81             entityManager.createNativeQuery(
  82                 DROP_FRAGMENT_CONSTRAINT
  83                     + ADD_FRAGMENT_CONSTRAINT_WITH_CASCADE
  84                     + "DELETE FROM fragment f USING " + tempTableName + " t"
  85                     + " WHERE f.anchor_id = :anchorId AND f.xpath LIKE CONCAT(t.xpath, :xpathListPattern);"
  86                     + DROP_FRAGMENT_CONSTRAINT
  87                     + ADD_ORIGINAL_FRAGMENT_CONSTRAINT)
  88                 .setParameter("anchorId", anchorId)
  89                 .setParameter("xpathListPattern", "[%%")
  90                 .executeUpdate();
  91         }
  92     }
  93
  94 }