Skip deleting list xpaths that are list elements

List elements cannot be lists. Filtering list elements before trying
to delete lists by xpaths doubles performance when deleting list
elements (which doubles performance of CM handle de-registration).

Issue-ID: CPS-1511
Signed-off-by: danielhanrahan <daniel.hanrahan@est.tech>
Change-Id: Ieb6002212d006396d468f27f853708b5aa1e31f2

1 files changed, 10 insertions, 4 deletions

diff --git a/cps-ri/src/main/java/org/onap/cps/spi/impl/CpsDataPersistenceServiceImpl.java b/cps-ri/src/main/java/org/onap/cps/spi/impl/CpsDataPersistenceServiceImpl.java
index dd2d3652ea..2159ceae8a 100644
--- a/cps-ri/src/main/java/org/onap/cps/spi/impl/CpsDataPersistenceServiceImpl.java
+++ b/cps-ri/src/main/java/org/onap/cps/spi/impl/CpsDataPersistenceServiceImpl.java
@@ -621,17 +621,23 @@ public class CpsDataPersistenceServiceImpl implements CpsDataPersistenceService
         final DataspaceEntity dataspaceEntity = dataspaceRepository.getByName(dataspaceName);
         final AnchorEntity anchorEntity = anchorRepository.getByDataspaceAndName(dataspaceEntity, anchorName);
 
-        final Collection<String> normalizedXpaths = new ArrayList<>(xpathsToDelete.size());
+        final Collection<String> normalizedXPathsToDelete = new ArrayList<>(xpathsToDelete.size());
+        final Collection<String> normalizedXpathsToPotentialLists = new ArrayList<>();
         for (final String xpath : xpathsToDelete) {
             try {
-                normalizedXpaths.add(CpsPathUtil.getNormalizedXpath(xpath));
+                final CpsPathQuery cpsPathQuery = CpsPathUtil.getCpsPathQuery(xpath);
+                final String normalizedXpath = cpsPathQuery.getNormalizedXpath();
+                normalizedXPathsToDelete.add(normalizedXpath);
+                if (!cpsPathQuery.isPathToListElement()) {
+                    normalizedXpathsToPotentialLists.add(normalizedXpath);
+                }
             } catch (final PathParsingException e) {
                 log.debug("Error parsing xpath \"{}\": {}", xpath, e.getMessage());
             }
         }
 
-        fragmentRepository.deleteByAnchorIdAndXpaths(anchorEntity.getId(), normalizedXpaths);
-        fragmentRepository.deleteListsByAnchorIdAndXpaths(anchorEntity.getId(), normalizedXpaths);
+        fragmentRepository.deleteByAnchorIdAndXpaths(anchorEntity.getId(), normalizedXPathsToDelete);
+        fragmentRepository.deleteListsByAnchorIdAndXpaths(anchorEntity.getId(), normalizedXpathsToPotentialLists);
     }
 
     @Override