Delete list-node p1 service and persistence layers

Persistence Layer of delete List-Node Content
Service Layer of delete List-Node Content
Updating of deprecated FragementRepository.getOne() method to FragmentRepository.getByID() in CpsDataPersistenceServiceIntegration.groovy
Remove Runtime Exceptions thrown from CpsDataService.java javadoc

Issue-ID: CPS-361
Signed-off-by: lukegleeson <luke.gleeson@est.tech>
Change-Id: Ib5762e73a6e8620c50c2e07b00086b9287770bc3

4 files changed, 39 insertions, 12 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 7187810e4a..6036f92225 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
@@ -23,9 +23,6 @@ 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;
 
 /*
@@ -39,7 +36,6 @@ public interface CpsDataService {
      * @param dataspaceName dataspace name
      * @param anchorName    anchor name
      * @param jsonData      json data
-     * @throws DataValidationException when json data is invalid
      */
     void saveData(@NonNull String dataspaceName, @NonNull String anchorName, @NonNull String jsonData);
 
@@ -50,9 +46,6 @@ public interface CpsDataService {
      * @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);
@@ -65,9 +58,6 @@ public interface CpsDataService {
      * @param anchorName      anchor name
      * @param parentNodeXpath parent node xpath
      * @param jsonData        json data representing list element
-     * @throws DataValidationException   when json data is invalid (incl. list-node being empty)
-     * @throws DataNodeNotFoundException when parent node cannot be found by parent node xpath
-     * @throws AlreadyDefinedException   when any of child data nodes is having xpath of already existing node
      */
     void saveListNodeData(@NonNull String dataspaceName, @NonNull String anchorName, @NonNull String parentNodeXpath,
         @NonNull String jsonData);
@@ -115,9 +105,17 @@ public interface CpsDataService {
      * @param anchorName      anchor name
      * @param parentNodeXpath parent node xpath
      * @param jsonData        json data representing list element
-     * @throws DataValidationException   when json data is invalid (incl. list-node being empty)
-     * @throws DataNodeNotFoundException when parent node cannot be found by parent node xpath
      */
     void replaceListNodeData(@NonNull String dataspaceName, @NonNull String anchorName, @NonNull String parentNodeXpath,
         @NonNull String jsonData);
+
+    /**
+     * Deletes (if exists) child data fragment representing list-node (with one or more elements)
+     * under existing data node for the given anchor and dataspace.
+     *
+     * @param dataspaceName   dataspace name
+     * @param anchorName      anchor name
+     * @param listNodeXpath   list node xpath
+     */
+    void deleteListNodeData(@NonNull String dataspaceName, @NonNull String anchorName, @NonNull String listNodeXpath);
 }
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 717df16a5f..5e6e1a2687 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
@@ -114,6 +114,13 @@ public class CpsDataServiceImpl implements CpsDataService {
         notificationService.processDataUpdatedEvent(dataspaceName, anchorName);
     }
 
+    @Override
+    public void deleteListNodeData(final String dataspaceName, final String anchorName, final String listNodeXpath) {
+        cpsDataPersistenceService.deleteListDataNodes(dataspaceName, anchorName, listNodeXpath);
+        notificationService.processDataUpdatedEvent(dataspaceName, anchorName);
+    }
+
+
     private DataNode buildDataNodeFromJson(final String dataspaceName, final String anchorName,
         final String parentNodeXpath, final String jsonData) {
 
diff --git a/cps-service/src/main/java/org/onap/cps/spi/CpsDataPersistenceService.java b/cps-service/src/main/java/org/onap/cps/spi/CpsDataPersistenceService.java
index cfb39f5951..bf8dd1a073 100644
--- a/cps-service/src/main/java/org/onap/cps/spi/CpsDataPersistenceService.java
+++ b/cps-service/src/main/java/org/onap/cps/spi/CpsDataPersistenceService.java
@@ -112,6 +112,16 @@ public interface CpsDataPersistenceService {
         @NonNull String parentNodeXpath, @NonNull Collection<DataNode> dataNodes);
 
     /**
+     * Deletes existing list data node content including descendants.
+     *
+     * @param dataspaceName   dataspace name
+     * @param anchorName      anchor name
+     * @param listNodeXpath   list node xpath
+     */
+    void deleteListDataNodes(@NonNull String dataspaceName, @NonNull String anchorName,
+                              @NonNull String listNodeXpath);
+
+    /**
      * Get a datanode by cps path.
      *
      * @param dataspaceName          dataspace name
diff --git a/cps-service/src/test/groovy/org/onap/cps/api/impl/CpsDataServiceImplSpec.groovy b/cps-service/src/test/groovy/org/onap/cps/api/impl/CpsDataServiceImplSpec.groovy
index 19ccee3675..122039728a 100644
--- a/cps-service/src/test/groovy/org/onap/cps/api/impl/CpsDataServiceImplSpec.groovy
+++ b/cps-service/src/test/groovy/org/onap/cps/api/impl/CpsDataServiceImplSpec.groovy
@@ -28,6 +28,7 @@ import org.onap.cps.api.CpsModuleService
 import org.onap.cps.notification.NotificationService
 import org.onap.cps.spi.CpsDataPersistenceService
 import org.onap.cps.spi.FetchDescendantsOption
+import org.onap.cps.spi.exceptions.CpsPathException
 import org.onap.cps.spi.exceptions.DataValidationException
 import org.onap.cps.spi.model.Anchor
 import org.onap.cps.spi.model.DataNodeBuilder
@@ -197,6 +198,17 @@ class CpsDataServiceImplSpec extends Specification {
             thrown(DataValidationException)
     }
 
+    def 'Delete list-node data fragment under existing node.'() {
+        given: 'schema set for given anchor and dataspace references test-tree model'
+            setupSchemaSetMocks('test-tree.yang')
+        when: 'delete list data method is invoked with list-node json data'
+            objectUnderTest.deleteListNodeData(dataspaceName, anchorName, '/test-tree/branch')
+        then: 'the persistence service method is invoked with correct parameters'
+            1 * mockCpsDataPersistenceService.deleteListDataNodes(dataspaceName, anchorName, '/test-tree/branch')
+        and: 'data updated event is sent to notification service'
+            1 * mockNotificationService.processDataUpdatedEvent(dataspaceName, anchorName)
+    }
+
     def setupSchemaSetMocks(String... yangResources) {
         def anchor = Anchor.builder().name(anchorName).schemaSetName(schemaSetName).build()
         mockCpsAdminService.getAnchor(dataspaceName, anchorName) >> anchor