1 files changed, 74 insertions, 0 deletions
diff --git a/cps-ri/src/main/java/org/onap/cps/spi/repository/FragmentRepositoryMultiPathQueryImpl.java b/cps-ri/src/main/java/org/onap/cps/spi/repository/FragmentRepositoryMultiPathQueryImpl.java
new file mode 100644
index 000000000..8c357bbb3
--- /dev/null
+++ b/cps-ri/src/main/java/org/onap/cps/spi/repository/FragmentRepositoryMultiPathQueryImpl.java
@@ -0,0 +1,74 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2022-2023 Nordix Foundation.
+ * ================================================================================
+ * 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.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.cps.spi.repository;
+
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.List;
+import javax.persistence.EntityManager;
+import javax.persistence.PersistenceContext;
+import javax.transaction.Transactional;
+import lombok.AllArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.onap.cps.spi.entities.FragmentEntity;
+
+
+@Slf4j
+@AllArgsConstructor
+public class FragmentRepositoryMultiPathQueryImpl implements FragmentRepositoryMultiPathQuery {
+
+    @PersistenceContext
+    private EntityManager entityManager;
+
+    private TempTableCreator tempTableCreator;
+
+    @Override
+    @Transactional
+    public List<FragmentEntity> findByAnchorAndMultipleCpsPaths(final Integer anchorId,
+                                                                final Collection<String> cpsPathQueryList) {
+        if (cpsPathQueryList.isEmpty()) {
+            return Collections.emptyList();
+        }
+        final Collection<List<String>> sqlData = new HashSet<>(cpsPathQueryList.size());
+        for (final String query : cpsPathQueryList) {
+            final List<String> row = new ArrayList<>(1);
+            row.add(query);
+            sqlData.add(row);
+        }
+
+        final String tempTableName = tempTableCreator.createTemporaryTable(
+                "xpathTemporaryTable", sqlData, "xpath");
+        return selectMatchingFragments(anchorId, tempTableName);
+    }
+
+    private List<FragmentEntity> selectMatchingFragments(final Integer anchorId, final String tempTableName) {
+        final String sql = String.format(
+            "SELECT * FROM FRAGMENT WHERE anchor_id = %d AND xpath IN (select xpath FROM %s);",
+            anchorId, tempTableName);
+        final List<FragmentEntity> fragmentEntities = entityManager.createNativeQuery(sql, FragmentEntity.class)
+                .getResultList();
+        log.debug("Fetched {} fragment entities by anchor and cps path.", fragmentEntities.size());
+        return fragmentEntities;
+    }
+}