Get all cm handles by DMI plugin Identifier

- api added to get cm handles by dmi plugin identifier
- response object refactored from RestOutputCmHandle to collection of
  Strings (cm handle ids)
- added public and private methods in CmHandleQueries to get cm handle ID by dmi plugin
- added unit tests including test to show that there are no duplicates
  on response

Issue-ID: CPS-1136
Signed-off-by: emaclee <lee.anjella.macabuhay@est.tech>
Change-Id: Ia3bdc16172a90ad3a3f9ae11cddcad1352188726

4 files changed, 105 insertions, 7 deletions

diff --git a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/NetworkCmProxyDataService.java b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/NetworkCmProxyDataService.java
index 3295a6e2b4..45dba211a3 100644
--- a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/NetworkCmProxyDataService.java
+++ b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/NetworkCmProxyDataService.java
@@ -162,4 +162,12 @@ public interface NetworkCmProxyDataService {
      * @param dataSyncEnabled data sync enabled flag
      */
     void setDataSyncEnabled(String cmHandleId, boolean dataSyncEnabled);
+
+    /**
+     * Get all cm handle IDs by DMI plugin identifier.
+     *
+     * @param dmiPluginIdentifier DMI plugin identifier
+     * @return set of cm handle IDs
+     */
+    Set<String> getAllCmHandleIdsByDmiPluginIdentifier(String dmiPluginIdentifier);
 }
diff --git a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/NetworkCmProxyDataServiceImpl.java b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/NetworkCmProxyDataServiceImpl.java
index 0fdecde077..5b072f35ed 100755
--- a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/NetworkCmProxyDataServiceImpl.java
+++ b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/NetworkCmProxyDataServiceImpl.java
@@ -30,6 +30,7 @@ import java.time.OffsetDateTime;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.HashMap;
+import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
@@ -44,6 +45,7 @@ import org.onap.cps.ncmp.api.impl.operations.DmiDataOperations;
 import org.onap.cps.ncmp.api.impl.operations.DmiOperations;
 import org.onap.cps.ncmp.api.impl.utils.YangDataConverter;
 import org.onap.cps.ncmp.api.impl.yangmodels.YangModelCmHandle;
+import org.onap.cps.ncmp.api.inventory.CmHandleQueries;
 import org.onap.cps.ncmp.api.inventory.CmHandleState;
 import org.onap.cps.ncmp.api.inventory.CompositeState;
 import org.onap.cps.ncmp.api.inventory.CompositeStateUtils;
@@ -80,6 +82,8 @@ public class NetworkCmProxyDataServiceImpl implements NetworkCmProxyDataService
 
     private final InventoryPersistence inventoryPersistence;
 
+    private final CmHandleQueries cmHandleQueries;
+
     private final NetworkCmProxyCmHandlerQueryService networkCmProxyCmHandlerQueryService;
 
     private final LcmEventsCmHandleStateHandler lcmEventsCmHandleStateHandler;
@@ -219,6 +223,23 @@ public class NetworkCmProxyDataServiceImpl implements NetworkCmProxyDataService
     }
 
     /**
+     * Get all cm handle IDs by DMI plugin identifier.
+     *
+     * @param dmiPluginIdentifier DMI plugin identifier
+     * @return set of cm handle IDs
+     */
+    @Override
+    public Set<String> getAllCmHandleIdsByDmiPluginIdentifier(final String dmiPluginIdentifier) {
+        final Set<NcmpServiceCmHandle> ncmpServiceCmHandles =
+                cmHandleQueries.getCmHandlesByDmiPluginIdentifier(dmiPluginIdentifier);
+        final Set<String> cmHandleIds = new HashSet<>(ncmpServiceCmHandles.size());
+        ncmpServiceCmHandles.forEach(cmHandle -> {
+            cmHandleIds.add(cmHandle.getCmHandleId());
+        });
+        return cmHandleIds;
+    }
+
+    /**
      * Retrieve cm handle details for a given cm handle.
      *
      * @param cmHandleId cm handle identifier
diff --git a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/inventory/CmHandleQueries.java b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/inventory/CmHandleQueries.java
index 9655612e70..569e91e2c9 100644
--- a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/inventory/CmHandleQueries.java
+++ b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/inventory/CmHandleQueries.java
@@ -27,8 +27,10 @@ import static org.onap.cps.spi.FetchDescendantsOption.OMIT_DESCENDANTS;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.HashMap;
+import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
+import java.util.Set;
 import java.util.stream.Collectors;
 import lombok.RequiredArgsConstructor;
 import org.onap.cps.ncmp.api.impl.utils.YangDataConverter;
@@ -57,21 +59,21 @@ public class CmHandleQueries {
      * @return CmHandles which have these public properties
      */
     public Map<String, NcmpServiceCmHandle> queryCmHandlePublicProperties(
-        final Map<String, String> publicPropertyQueryPairs) {
+            final Map<String, String> publicPropertyQueryPairs) {
         if (publicPropertyQueryPairs.isEmpty()) {
             return Collections.emptyMap();
         }
         Map<String, NcmpServiceCmHandle> cmHandleIdToNcmpServiceCmHandles = null;
         for (final Map.Entry<String, String> publicPropertyQueryPair : publicPropertyQueryPairs.entrySet()) {
             final String cpsPath = "//public-properties[@name=\"" + publicPropertyQueryPair.getKey()
-                + "\" and @value=\"" + publicPropertyQueryPair.getValue() + "\"]";
+                    + "\" and @value=\"" + publicPropertyQueryPair.getValue() + "\"]";
 
             final Collection<DataNode> dataNodes = queryCmHandleDataNodesByCpsPath(cpsPath, INCLUDE_ALL_DESCENDANTS);
             if (cmHandleIdToNcmpServiceCmHandles == null) {
                 cmHandleIdToNcmpServiceCmHandles = collectDataNodesToNcmpServiceCmHandles(dataNodes);
             } else {
                 final Collection<String> cmHandleIdsToRetain = dataNodes.parallelStream()
-                    .map(dataNode -> dataNode.getLeaves().get("id").toString()).collect(Collectors.toSet());
+                        .map(dataNode -> dataNode.getLeaves().get("id").toString()).collect(Collectors.toSet());
                 cmHandleIdToNcmpServiceCmHandles.keySet().retainAll(cmHandleIdsToRetain);
             }
             if (cmHandleIdToNcmpServiceCmHandles.isEmpty()) {
@@ -89,8 +91,8 @@ public class CmHandleQueries {
      * @return combined Map of CmHandles
      */
     public Map<String, NcmpServiceCmHandle> combineCmHandleQueries(
-        final Map<String, NcmpServiceCmHandle> firstQuery,
-        final Map<String, NcmpServiceCmHandle> secondQuery) {
+            final Map<String, NcmpServiceCmHandle> firstQuery,
+            final Map<String, NcmpServiceCmHandle> secondQuery) {
         if (firstQuery == NO_QUERY_TO_EXECUTE && secondQuery == NO_QUERY_TO_EXECUTE) {
             return NO_QUERY_TO_EXECUTE;
         } else if (firstQuery == NO_QUERY_TO_EXECUTE) {
@@ -150,7 +152,7 @@ public class CmHandleQueries {
     }
 
     private Map<String, NcmpServiceCmHandle> collectDataNodesToNcmpServiceCmHandles(
-        final Collection<DataNode> dataNodes) {
+            final Collection<DataNode> dataNodes) {
         final Map<String, NcmpServiceCmHandle> cmHandleIdToNcmpServiceCmHandle = new HashMap<>();
         dataNodes.forEach(dataNode -> {
             final NcmpServiceCmHandle ncmpServiceCmHandle = createNcmpServiceCmHandle(dataNode);
@@ -161,7 +163,36 @@ public class CmHandleQueries {
 
     private NcmpServiceCmHandle createNcmpServiceCmHandle(final DataNode dataNode) {
         return convertYangModelCmHandleToNcmpServiceCmHandle(YangDataConverter
-            .convertCmHandleToYangModel(dataNode, dataNode.getLeaves().get("id").toString()));
+                .convertCmHandleToYangModel(dataNode, dataNode.getLeaves().get("id").toString()));
+    }
+
+    /**
+     * Get all cm handles by DMI plugin identifier.
+     *
+     * @param dmiPluginIdentifier DMI plugin identifier
+     * @return set of cm handles
+     */
+    public Set<NcmpServiceCmHandle> getCmHandlesByDmiPluginIdentifier(final String dmiPluginIdentifier) {
+        final Map<String, DataNode> cmHandleAsDataNodePerCmHandleId = new HashMap<>();
+        for (final ModelledDmiServiceLeaves modelledDmiServiceLeaf : ModelledDmiServiceLeaves.values()) {
+            for (final DataNode cmHandleAsDataNode: getCmHandlesByDmiPluginIdentifierAndDmiProperty(
+                    dmiPluginIdentifier,
+                    modelledDmiServiceLeaf.getLeafName())) {
+                cmHandleAsDataNodePerCmHandleId.put(
+                        cmHandleAsDataNode.getLeaves().get("id").toString(), cmHandleAsDataNode);
+            }
+        }
+        final Set<NcmpServiceCmHandle> ncmpServiceCmHandles = new HashSet<>(cmHandleAsDataNodePerCmHandleId.size());
+        cmHandleAsDataNodePerCmHandleId.values().forEach(
+                cmHandleAsDataNode -> ncmpServiceCmHandles.add(createNcmpServiceCmHandle(cmHandleAsDataNode)));
+        return ncmpServiceCmHandles;
+    }
+
+    private List<DataNode> getCmHandlesByDmiPluginIdentifierAndDmiProperty(final String dmiPluginIdentifier,
+                                                             final String dmiProperty) {
+        return cpsDataPersistenceService.queryDataNodes(NCMP_DATASPACE_NAME, NCMP_DMI_REGISTRY_ANCHOR,
+                "/dmi-registry/cm-handles[@" + dmiProperty + "='" + dmiPluginIdentifier + "']",
+                OMIT_DESCENDANTS);
     }
 
     private DataNode getCmHandleState(final String cmHandleId) {
diff --git a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/inventory/ModelledDmiServiceLeaves.java b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/inventory/ModelledDmiServiceLeaves.java
new file mode 100644
index 0000000000..0546c388bf
--- /dev/null
+++ b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/inventory/ModelledDmiServiceLeaves.java
@@ -0,0 +1,38 @@
+/*
+ *  ============LICENSE_START=======================================================
+ *  Copyright (C) 2022 Nordix Foundation
+ *  ================================================================================
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ *  SPDX-License-Identifier: Apache-2.0
+ *  ============LICENSE_END=========================================================
+ */
+
+package org.onap.cps.ncmp.api.inventory;
+
+public enum ModelledDmiServiceLeaves {
+    DMI_SERVICE_NAME("dmi-service-name"),
+    DMI_DATA_SERVICE_NAME("dmi-data-service-name"),
+    DMI_MODEL_SERVICE_NAME("dmi-model-service-name");
+
+    private String leafName;
+
+    ModelledDmiServiceLeaves(final String dmiPluginIdentifierKey) {
+        this.leafName = dmiPluginIdentifierKey;
+    }
+
+    public String getLeafName() {
+        return leafName;
+    }
+
+}