2 files changed, 23 insertions, 0 deletions

diff --git a/cps-service/src/main/java/org/onap/cps/api/CpsDataService.java b/cps-service/src/main/java/org/onap/cps/api/CpsDataService.java
index 54d925891..8552c6c0d 100644
--- a/cps-service/src/main/java/org/onap/cps/api/CpsDataService.java
+++ b/cps-service/src/main/java/org/onap/cps/api/CpsDataService.java
@@ -22,6 +22,8 @@ package org.onap.cps.api;
 
 import org.checkerframework.checker.nullness.qual.NonNull;
 import org.onap.cps.spi.FetchDescendantsOption;
+import org.onap.cps.spi.exceptions.AlreadyDefinedException;
+import org.onap.cps.spi.exceptions.DataNodeNotFoundException;
 import org.onap.cps.spi.exceptions.DataValidationException;
 import org.onap.cps.spi.model.DataNode;
 
@@ -41,6 +43,20 @@ public interface CpsDataService {
     void saveData(@NonNull String dataspaceName, @NonNull String anchorName, @NonNull String jsonData);
 
     /**
+     * Persists child data fragment under existing data node for the given anchor and dataspace.
+     *
+     * @param dataspaceName   dataspace name
+     * @param anchorName      anchor name
+     * @param parentNodeXpath parent node xpath
+     * @param jsonData        json data
+     * @throws DataValidationException   when json data is invalid
+     * @throws DataNodeNotFoundException when parent node cannot be found by parent node xpath
+     * @throws AlreadyDefinedException   when child data node with same xpath already exists
+     */
+    void saveData(@NonNull String dataspaceName, @NonNull String anchorName, @NonNull String parentNodeXpath,
+        @NonNull String jsonData);
+
+    /**
      * Retrieves datanode by XPath for given dataspace and anchor.
      *
      * @param dataspaceName          dataspace name
diff --git a/cps-service/src/main/java/org/onap/cps/api/impl/CpsDataServiceImpl.java b/cps-service/src/main/java/org/onap/cps/api/impl/CpsDataServiceImpl.java
index 6f7d6439b..cc290bf29 100755
--- a/cps-service/src/main/java/org/onap/cps/api/impl/CpsDataServiceImpl.java
+++ b/cps-service/src/main/java/org/onap/cps/api/impl/CpsDataServiceImpl.java
@@ -59,6 +59,13 @@ public class CpsDataServiceImpl implements CpsDataService {
     }
 
     @Override
+    public void saveData(final String dataspaceName, final String anchorName, final String parentNodeXpath,
+        final String jsonData) {
+        final DataNode dataNode = buildDataNodeFromJson(dataspaceName, anchorName, parentNodeXpath, jsonData);
+        cpsDataPersistenceService.addChildDataNode(dataspaceName, anchorName, parentNodeXpath, dataNode);
+    }
+
+    @Override
     public DataNode getDataNode(final String dataspaceName, final String anchorName, final String xpath,
         final FetchDescendantsOption fetchDescendantsOption) {
         return cpsDataPersistenceService.getDataNode(dataspaceName, anchorName, xpath, fetchDescendantsOption);