Draft at proposal where the DataNodeBuilder 'replaces' yang Utils to buidl a DataNode

Most complexity is related to immutable collections and the fact taht we are adding data while recursing
over the orignal data in an uncontrolled order.

I cleaned it up as best I could with no logic in DataNode.
Espcially the handling of LitLeaves requires some specialed handling. Thsi is just a draft solution for that
I still propose we get back to that in dedicated user stories for handling the various types of Yang elements

Hope this helps...

Issue-ID: CPS-137

Signed-off-by: ToineSiebelink <toine.siebelink@est.tech>
Change-Id: Iab7cfcff67412c01bcdab95e707e1350bf60fab1

2 files changed, 29 insertions, 21 deletions

diff --git a/cps-service/src/test/groovy/org/onap/cps/model/DataNodeBuilderSpec.groovy b/cps-service/src/test/groovy/org/onap/cps/model/DataNodeBuilderSpec.groovy
new file mode 100644
index 000000000..0dbde889a
--- /dev/null
+++ b/cps-service/src/test/groovy/org/onap/cps/model/DataNodeBuilderSpec.groovy
@@ -0,0 +1,29 @@
+package org.onap.cps.model
+
+import org.onap.cps.TestUtils
+import org.onap.cps.spi.model.DataNodeBuilder
+import org.onap.cps.utils.YangUtils
+import org.onap.cps.yang.YangTextSchemaSourceSetBuilder
+import spock.lang.Specification
+
+class DataNodeBuilderSpec extends Specification {
+
+    def 'Converting Normalized Node (tree) to a DataNode (tree).'() {
+        given: 'a Yang module'
+            def yangResourceNameToContent = TestUtils.getYangResourcesAsMap('bookstore.yang')
+            def schemaContext = YangTextSchemaSourceSetBuilder.of(yangResourceNameToContent)getSchemaContext()
+        and: 'a normalized node for that model'
+            def jsonData = TestUtils.getResourceFileContent('bookstore.json')
+            def normalizedNode = YangUtils.parseJsonData(jsonData, schemaContext)
+        when: 'the normalized node is converted to a DataNode (tree)'
+            def result = new DataNodeBuilder().withNormalizedNodeTree(normalizedNode).build()
+        then: 'the system creates a (root) fragment without a parent and 2 children (categories)'
+            result.childDataNodes.size() == 2
+        and: 'each child (category) has the root fragment (result) as parent and in turn as 1 child (a list of books)'
+            result.childDataNodes.each { it.childDataNodes.size() == 1 }
+        and: 'the fragments have the correct xpaths'
+            assert result.xpath == '/bookstore'
+            assert result.childDataNodes.collect { it.xpath }
+                    .containsAll(["/bookstore/categories[@code='01']", "/bookstore/categories[@code='02']"])
+    }
+}
diff --git a/cps-service/src/test/groovy/org/onap/cps/utils/YangUtilsSpec.groovy b/cps-service/src/test/groovy/org/onap/cps/utils/YangUtilsSpec.groovy
index 9237fa29a..e6e5d6a36 100644
--- a/cps-service/src/test/groovy/org/onap/cps/utils/YangUtilsSpec.groovy
+++ b/cps-service/src/test/groovy/org/onap/cps/utils/YangUtilsSpec.groovy
@@ -54,25 +54,4 @@ class YangUtilsSpec extends Specification{
             '{incomplete json'                                | 'incomplete json'
             '{"test:bookstore": {"address": "Parnell st." }}' | 'json with un-modelled data'
     }
-
-    def 'Breaking a Json Data Object into fragments.'() {
-        given: 'a Yang module'
-            def yangResourceNameToContent = TestUtils.getYangResourcesAsMap('bookstore.yang')
-            def schemaContext = YangTextSchemaSourceSetBuilder.of(yangResourceNameToContent)getSchemaContext()
-            def module = schemaContext.findModule('stores', Revision.of('2020-09-15')).get()
-        and: 'a normalized node for that model'
-            def jsonData = TestUtils.getResourceFileContent('bookstore.json')
-            def normalizedNode = YangUtils.parseJsonData(jsonData, schemaContext)
-        when: 'the json data is fragmented'
-            def result = YangUtils.fragmentNormalizedNode(normalizedNode, module)
-        then: 'the system creates a (root) fragment without a parent and 2 children (categories)'
-            result.parentFragment == null
-            result.childFragments.size() == 2
-        and: 'each child (category) has the root fragment (result) as parent and in turn as 1 child (a list of books)'
-            result.childFragments.each { it.parentFragment == result && it.childFragments.size() == 1 }
-        and: 'the fragments have the correct xpaths'
-            assert result.xpath == '/bookstore'
-            assert result.childFragments.collect { it.xpath }
-                .containsAll(["/bookstore/categories[@code='01']", "/bookstore/categories[@code='02']"])
-    }
 }