Faster module searches (CPS-2190 #3)

This greatly improves performance of module searches by eliminating
unneeded SQL queries via Hibernate lazy fetching.

Issue-ID: CPS-2190
Signed-off-by: danielhanrahan <daniel.hanrahan@est.tech>
Change-Id: Ie9e65017d0027366456f1741cc37b10679317b25

2 files changed, 11 insertions, 12 deletions

diff --git a/cps-ri/src/main/java/org/onap/cps/spi/impl/CpsAdminPersistenceServiceImpl.java b/cps-ri/src/main/java/org/onap/cps/spi/impl/CpsAdminPersistenceServiceImpl.java
index d697fd53f..56a046496 100755
--- a/cps-ri/src/main/java/org/onap/cps/spi/impl/CpsAdminPersistenceServiceImpl.java
+++ b/cps-ri/src/main/java/org/onap/cps/spi/impl/CpsAdminPersistenceServiceImpl.java
@@ -131,11 +131,10 @@ public class CpsAdminPersistenceServiceImpl implements CpsAdminPersistenceServic
     }
 
     @Override
-    public Collection<Anchor> queryAnchors(final String dataspaceName, final Collection<String> inputModuleNames) {
+    public Collection<String> queryAnchorNames(final String dataspaceName, final Collection<String> inputModuleNames) {
         final DataspaceEntity dataspaceEntity = dataspaceRepository.getByName(dataspaceName);
-        final Collection<AnchorEntity> anchorEntities = anchorRepository
-            .getAnchorsByDataspaceIdAndModuleNames(dataspaceEntity.getId(), inputModuleNames, inputModuleNames.size());
-        return anchorEntities.stream().map(CpsAdminPersistenceServiceImpl::toAnchor).collect(Collectors.toSet());
+        return anchorRepository.getAnchorNamesByDataspaceIdAndModuleNames(dataspaceEntity.getId(), inputModuleNames,
+                inputModuleNames.size());
     }
 
     @Override
diff --git a/cps-ri/src/main/java/org/onap/cps/spi/repository/AnchorRepository.java b/cps-ri/src/main/java/org/onap/cps/spi/repository/AnchorRepository.java
index 19646c523..d78a016c2 100755
--- a/cps-ri/src/main/java/org/onap/cps/spi/repository/AnchorRepository.java
+++ b/cps-ri/src/main/java/org/onap/cps/spi/repository/AnchorRepository.java
@@ -72,7 +72,7 @@ public interface AnchorRepository extends JpaRepository<AnchorEntity, Long> {
 
     @Query(value = """
             SELECT
-                anchor.*
+                anchor.name
             FROM
                      yang_resource
                 JOIN schema_set_yang_resources ON schema_set_yang_resources.yang_resource_id = yang_resource.id
@@ -89,15 +89,15 @@ public interface AnchorRepository extends JpaRepository<AnchorEntity, Long> {
             HAVING
                 COUNT(DISTINCT module_name) = :sizeOfModuleNames
             """, nativeQuery = true)
-    Collection<AnchorEntity> getAnchorsByDataspaceIdAndModuleNames(@Param("dataspaceId") int dataspaceId,
-                                                                   @Param("moduleNames") String[] moduleNames,
-                                                                   @Param("sizeOfModuleNames") int sizeOfModuleNames);
+    Collection<String> getAnchorNamesByDataspaceIdAndModuleNames(@Param("dataspaceId") int dataspaceId,
+                                                                 @Param("moduleNames") String[] moduleNames,
+                                                                 @Param("sizeOfModuleNames") int sizeOfModuleNames);
 
-    default Collection<AnchorEntity> getAnchorsByDataspaceIdAndModuleNames(final int dataspaceId,
-                                                                           final Collection<String> moduleNames,
-                                                                           final int sizeOfModuleNames) {
+    default Collection<String> getAnchorNamesByDataspaceIdAndModuleNames(final int dataspaceId,
+                                                                         final Collection<String> moduleNames,
+                                                                         final int sizeOfModuleNames) {
         final String[] moduleNamesArray = moduleNames.toArray(new String[0]);
-        return getAnchorsByDataspaceIdAndModuleNames(dataspaceId, moduleNamesArray, sizeOfModuleNames);
+        return getAnchorNamesByDataspaceIdAndModuleNames(dataspaceId, moduleNamesArray, sizeOfModuleNames);
     }
 
     @Modifying