Performance Improvement: Batch Update DataNodes

Implemented methods to perform a batch operation on updating datanodes
Refactored replace data node(s) tree methods to update data node(s) and descendants

Issue-ID: CPS-1203
Signed-off-by: lukegleeson <luke.gleeson@est.tech>
Change-Id: I365d657422b19c9ce384110c9a23d041eaed06f4

1 files changed, 18 insertions, 1 deletions

diff --git a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/inventory/InventoryPersistence.java b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/inventory/InventoryPersistence.java
index 14fc6d698a..c059ece0d3 100644
--- a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/inventory/InventoryPersistence.java
+++ b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/inventory/InventoryPersistence.java
@@ -28,6 +28,8 @@ import static org.onap.cps.spi.FetchDescendantsOption.INCLUDE_ALL_DESCENDANTS;
 
 import java.time.OffsetDateTime;
 import java.util.Collection;
+import java.util.HashMap;
+import java.util.Map;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.onap.cps.api.CpsDataService;
@@ -91,12 +93,27 @@ public class InventoryPersistence {
     public void saveCmHandleState(final String cmHandleId, final CompositeState compositeState) {
         final String cmHandleJsonData = String.format("{\"state\":%s}",
             jsonObjectMapper.asJsonString(compositeState));
-        cpsDataService.replaceNodeTree(NCMP_DATASPACE_NAME, NCMP_DMI_REGISTRY_ANCHOR,
+        cpsDataService.updateDataNodeAndDescendants(NCMP_DATASPACE_NAME, NCMP_DMI_REGISTRY_ANCHOR,
             String.format(CM_HANDLE_XPATH_TEMPLATE, cmHandleId),
             cmHandleJsonData, OffsetDateTime.now());
     }
 
     /**
+     * Save all cm handles states in batch.
+     *
+     * @param cmHandleStates contains cm handle id and updated state
+     */
+    public void saveCmHandleStates(final Map<String, CompositeState> cmHandleStates) {
+        final Map<String, String> cmHandlesJsonDataMap = new HashMap<>();
+        cmHandleStates.entrySet().stream().forEach(cmHandleEntry ->
+            cmHandlesJsonDataMap.put(String.format(CM_HANDLE_XPATH_TEMPLATE, cmHandleEntry.getKey()),
+                String.format("{\"state\":%s}",
+                    jsonObjectMapper.asJsonString(cmHandleEntry.getValue()))));
+        cpsDataService.updateDataNodesAndDescendants(NCMP_DATASPACE_NAME, NCMP_DMI_REGISTRY_ANCHOR,
+            cmHandlesJsonDataMap, OffsetDateTime.now());
+    }
+
+    /**
      * This method retrieves DMI service name, DMI properties and the state for a given cm handle.
      * @param cmHandleId the id of the cm handle
      * @return yang model cm handle