CPS-341 Support for multiple data tree instances under 1 anchor

[cps.git] / cps-service / src / main / java / org / onap / cps / spi / model / DataNodeBuilder.java

diff --git a/cps-service/src/main/java/org/onap/cps/spi/model/DataNodeBuilder.java b/cps-service/src/main/java/org/onap/cps/spi/model/DataNodeBuilder.java
index 1d8bac0..b23cdfc 100644 (file)
--- a/cps-service/src/main/java/org/onap/cps/spi/model/DataNodeBuilder.java
+++ b/cps-service/src/main/java/org/onap/cps/spi/model/DataNodeBuilder.java
@@ -3,6 +3,7 @@
  *  Copyright (C) 2021 Bell Canada. All rights reserved.
  *  Modifications Copyright (C) 2021 Pantheon.tech
  *  Modifications Copyright (C) 2022 Nordix Foundation.
+ *  Modifications Copyright (C) 2022 TechMahindra Ltd.
  *  ================================================================================
  *  Licensed under the Apache License, Version 2.0 (the "License");
  *  you may not use this file except in compliance with the License.
@@ -35,6 +36,7 @@ import org.onap.cps.spi.exceptions.DataValidationException;
 import org.onap.cps.utils.YangUtils;
 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
 import org.opendaylight.yangtools.yang.data.api.schema.ChoiceNode;
+import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
 import org.opendaylight.yangtools.yang.data.api.schema.DataContainerChild;
 import org.opendaylight.yangtools.yang.data.api.schema.DataContainerNode;
 import org.opendaylight.yangtools.yang.data.api.schema.LeafSetNode;
@@ -46,7 +48,7 @@ import org.opendaylight.yangtools.yang.data.api.schema.ValueNode;
 @Slf4j
 public class DataNodeBuilder {
 
-    private NormalizedNode normalizedNodeTree;
+    private ContainerNode containerNode;
     private String xpath;
     private String moduleNamePrefix;
     private String parentNodeXpath = "";
@@ -64,15 +66,14 @@ public class DataNodeBuilder {
         return this;
     }
 
-
     /**
-     * To use {@link NormalizedNode} for creating {@link DataNode}.
+     * To use {@link Collection} of Normalized Nodes for creating {@link DataNode}.
      *
-     * @param normalizedNodeTree used for creating the Data Node
+     * @param containerNode used for creating the Data Node
      * @return this {@link DataNodeBuilder} object
      */
-    public DataNodeBuilder withNormalizedNodeTree(final NormalizedNode normalizedNodeTree) {
-        this.normalizedNodeTree = normalizedNodeTree;
+    public DataNodeBuilder withContainerNode(final ContainerNode containerNode) {
+        this.containerNode = containerNode;
         return this;
     }
 
@@ -128,11 +129,10 @@ public class DataNodeBuilder {
      * @return {@link DataNode}
      */
     public DataNode build() {
-        if (normalizedNodeTree != null) {
-            return buildFromNormalizedNodeTree();
-        } else {
-            return buildFromAttributes();
+        if (containerNode != null) {
+            return buildFromContainerNode();
         }
+        return buildFromAttributes();
     }
 
     /**
@@ -141,11 +141,10 @@ public class DataNodeBuilder {
      * @return {@link DataNode} {@link Collection}
      */
     public Collection<DataNode> buildCollection() {
-        if (normalizedNodeTree != null) {
-            return buildCollectionFromNormalizedNodeTree();
-        } else {
-            return Set.of(buildFromAttributes());
+        if (containerNode != null) {
+            return buildCollectionFromContainerNode();
         }
+        return Collections.emptySet();
     }
 
     private DataNode buildFromAttributes() {
@@ -157,8 +156,8 @@ public class DataNodeBuilder {
         return dataNode;
     }
 
-    private DataNode buildFromNormalizedNodeTree() {
-        final Collection<DataNode> dataNodeCollection = buildCollectionFromNormalizedNodeTree();
+    private DataNode buildFromContainerNode() {
+        final Collection<DataNode> dataNodeCollection = buildCollectionFromContainerNode();
         if (!dataNodeCollection.iterator().hasNext()) {
             throw new DataValidationException(
                 "Unsupported xpath: ", "Unsupported xpath as it is referring to one element");
@@ -166,9 +165,13 @@ public class DataNodeBuilder {
         return dataNodeCollection.iterator().next();
     }
 
-    private Collection<DataNode> buildCollectionFromNormalizedNodeTree() {
+    private Collection<DataNode> buildCollectionFromContainerNode() {
         final var parentDataNode = new DataNodeBuilder().withXpath(parentNodeXpath).build();
-        addDataNodeFromNormalizedNode(parentDataNode, normalizedNodeTree);
+        if (containerNode.body() != null) {
+            for (final NormalizedNode normalizedNode: containerNode.body()) {
+                addDataNodeFromNormalizedNode(parentDataNode, normalizedNode);
+            }
+        }
         return parentDataNode.getChildDataNodes();
     }