move AAI named query

The AAI vserver named-query was being done as a preliminary step for the
SO request.  However, it will now be needed during the guard query, which
happens much earlier.  Thus it has been moved from the SO classes into
the event manager class, where it is retrieved in a lazy fashion and
cached.
Also removed some trailing white space.
Update licenses.
Make test method private.

Change-Id: Id7353a2e0f2d42601d5142cb92961528fa21aa94
Issue-ID: POLICY-1011
Signed-off-by: Jim Hahn <jrh3@att.com>

3 files changed, 182 insertions, 54 deletions

diff --git a/controlloop/common/eventmanager/src/main/java/org/onap/policy/controlloop/eventmanager/ControlLoopEventManager.java b/controlloop/common/eventmanager/src/main/java/org/onap/policy/controlloop/eventmanager/ControlLoopEventManager.java
index bd7f14e6f..bb349591e 100644
--- a/controlloop/common/eventmanager/src/main/java/org/onap/policy/controlloop/eventmanager/ControlLoopEventManager.java
+++ b/controlloop/common/eventmanager/src/main/java/org/onap/policy/controlloop/eventmanager/ControlLoopEventManager.java
@@ -25,6 +25,7 @@ import java.io.UnsupportedEncodingException;
 import java.net.URLDecoder;
 import java.util.ArrayList;
 import java.util.Collection;
+import java.util.HashMap;
 import java.util.LinkedList;
 import java.util.List;
 import java.util.Map;
@@ -33,6 +34,12 @@ import java.util.UUID;
 import org.onap.policy.aai.AaiGetVnfResponse;
 import org.onap.policy.aai.AaiGetVserverResponse;
 import org.onap.policy.aai.AaiManager;
+import org.onap.policy.aai.AaiNqInstanceFilters;
+import org.onap.policy.aai.AaiNqNamedQuery;
+import org.onap.policy.aai.AaiNqQueryParameters;
+import org.onap.policy.aai.AaiNqRequest;
+import org.onap.policy.aai.AaiNqResponse;
+import org.onap.policy.aai.AaiNqResponseWrapper;
 import org.onap.policy.aai.AaiNqVServer;
 import org.onap.policy.aai.util.AaiException;
 import org.onap.policy.controlloop.ControlLoopEventStatus;
@@ -51,6 +58,7 @@ import org.onap.policy.guard.PolicyGuard;
 import org.onap.policy.guard.PolicyGuard.LockResult;
 import org.onap.policy.guard.TargetLock;
 import org.onap.policy.rest.RESTManager;
+import org.onap.policy.so.util.Serialization;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -95,6 +103,12 @@ public class ControlLoopEventManager implements LockCallback, Serializable {
     private AaiGetVnfResponse vnfResponse = null;
     private AaiGetVserverResponse vserverResponse = null;
 
+    /**
+     * Wrapper for AAI vserver named-query response. This is initialized in a lazy
+     * fashion.
+     */
+    private AaiNqResponseWrapper nqVserverResponse = null;
+
     private static Collection<String> requiredAAIKeys = new ArrayList<>();
 
     static {
@@ -871,6 +885,84 @@ public class ControlLoopEventManager implements LockCallback, Serializable {
         return response;
     }
 
+    /**
+     * Gets the output from the AAI vserver named-query, using the cache, if appropriate.
+     * @return output from the AAI vserver named-query
+     */
+    public AaiNqResponseWrapper getNqVserverFromAai() {
+        if(nqVserverResponse != null) {
+            // already queried
+            return nqVserverResponse;
+        }
+
+        String vserverName = onset.getAai().get(VSERVER_VSERVER_NAME);
+        if(vserverName == null) {
+            logger.warn("Missing vserver-name for AAI request {}", onset.getRequestId());
+            return null;
+        }
+
+        // create AAI named-query request with UUID started with ""
+        AaiNqRequest aaiNqRequest = new AaiNqRequest();
+        AaiNqQueryParameters aaiNqQueryParam = new AaiNqQueryParameters();
+        AaiNqNamedQuery aaiNqNamedQuery = new AaiNqNamedQuery();
+        final AaiNqInstanceFilters aaiNqInstanceFilter = new AaiNqInstanceFilters();
+
+        // queryParameters
+        // TODO: UUID.fromString($params.getAaiNamedQueryUUID()) AaiNamedQueryUUID
+        aaiNqNamedQuery.setNamedQueryUuid(UUID.fromString("4ff56a54-9e3f-46b7-a337-07a1d3c6b469"));
+        aaiNqQueryParam.setNamedQuery(aaiNqNamedQuery);
+        aaiNqRequest.setQueryParameters(aaiNqQueryParam);
+        //
+        // instanceFilters
+        //
+        Map<String, Map<String, String>> aaiNqInstanceFilterMap = new HashMap<>();
+        Map<String, String> aaiNqInstanceFilterMapItem = new HashMap<>();
+        aaiNqInstanceFilterMapItem.put("vserver-name", vserverName);
+        aaiNqInstanceFilterMap.put("vserver", aaiNqInstanceFilterMapItem);
+        aaiNqInstanceFilter.getInstanceFilter().add(aaiNqInstanceFilterMap);
+        aaiNqRequest.setInstanceFilters(aaiNqInstanceFilter);
+
+        if (logger.isDebugEnabled()) {
+            logger.debug("AAI Request sent: {}", Serialization.gsonPretty.toJson(aaiNqRequest));
+        }
+
+        AaiNqResponse aaiNqResponse = new AaiManager(new RESTManager()).postQuery(getPeManagerEnvProperty("aai.url"),
+                getPeManagerEnvProperty("aai.username"), getPeManagerEnvProperty("aai.password"), aaiNqRequest,
+                onset.getRequestId());
+
+        // Check AAI response
+        if (aaiNqResponse == null) {
+            logger.warn("No response received from AAI for request {}", aaiNqRequest);
+            return null;
+        }
+
+        // Create AAINQResponseWrapper
+        nqVserverResponse = new AaiNqResponseWrapper(onset.getRequestId(), aaiNqResponse);
+
+        if (logger.isDebugEnabled()) {
+            logger.debug("AAI Named Query Response: ");
+            logger.debug(Serialization.gsonPretty.toJson(nqVserverResponse.getAaiNqResponse()));
+        }
+
+        return nqVserverResponse;
+    }
+
+    /**
+     * This method reads and validates environmental properties coming from the policy engine. Null
+     * properties cause an {@link IllegalArgumentException} runtime exception to be thrown
+     *
+     * @param enginePropertyName the name of the parameter to retrieve
+     * @return the property value
+     */
+    private static String getPeManagerEnvProperty(String enginePropertyName) {
+        String enginePropertyValue = PolicyEngine.manager.getEnvironmentProperty(enginePropertyName);
+        if (enginePropertyValue == null) {
+            throw new IllegalArgumentException("The value of policy engine manager environment property \""
+                    + enginePropertyName + "\" may not be null");
+        }
+        return enginePropertyValue;
+    }
+
     @Override
     public boolean isActive() {
         // TODO
diff --git a/controlloop/common/eventmanager/src/main/java/org/onap/policy/controlloop/eventmanager/ControlLoopOperationManager.java b/controlloop/common/eventmanager/src/main/java/org/onap/policy/controlloop/eventmanager/ControlLoopOperationManager.java
index 7ef2a2e04..0eb924dd2 100644
--- a/controlloop/common/eventmanager/src/main/java/org/onap/policy/controlloop/eventmanager/ControlLoopOperationManager.java
+++ b/controlloop/common/eventmanager/src/main/java/org/onap/policy/controlloop/eventmanager/ControlLoopOperationManager.java
@@ -264,8 +264,8 @@ public class ControlLoopOperationManager implements Serializable {
                 return operationRequest;
             case "SO":
                 SOActorServiceProvider soActorSp = new SOActorServiceProvider();
-                this.operationRequest =
-                        soActorSp.constructRequest((VirtualControlLoopEvent) onset, operation.clOperation, this.policy);
+                this.operationRequest = soActorSp.constructRequest((VirtualControlLoopEvent) onset,
+                                operation.clOperation, this.policy, eventManager.getNqVserverFromAai());
 
                 // Save the operation
                 this.currentOperation = operation;
diff --git a/controlloop/common/eventmanager/src/test/java/org/onap/policy/controlloop/eventmanager/ControlLoopEventManagerTest.java b/controlloop/common/eventmanager/src/test/java/org/onap/policy/controlloop/eventmanager/ControlLoopEventManagerTest.java
index 1cef78a9e..1b2d8db61 100644
--- a/controlloop/common/eventmanager/src/test/java/org/onap/policy/controlloop/eventmanager/ControlLoopEventManagerTest.java
+++ b/controlloop/common/eventmanager/src/test/java/org/onap/policy/controlloop/eventmanager/ControlLoopEventManagerTest.java
@@ -7,9 +7,9 @@
  * 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.
@@ -46,6 +46,7 @@ import org.onap.policy.aai.AaiGetVnfResponse;
 import org.onap.policy.aai.AaiGetVserverResponse;
 import org.onap.policy.aai.AaiNqVServer;
 import org.onap.policy.aai.AaiNqRequestError;
+import org.onap.policy.aai.AaiNqResponseWrapper;
 import org.onap.policy.aai.RelatedToProperty;
 import org.onap.policy.aai.Relationship;
 import org.onap.policy.aai.RelationshipData;
@@ -71,8 +72,10 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 public class ControlLoopEventManagerTest {
+    private static final String INVALID_URL = "http://localhost:9999";
+
     private static final Logger logger = LoggerFactory.getLogger(ControlLoopEventManagerTest.class);
-    
+
     @Rule
     public ExpectedException thrown = ExpectedException.none();
 
@@ -97,7 +100,7 @@ public class ControlLoopEventManagerTest {
     public static void tearDownSimulator() {
         HttpServletServer.factory.destroy();
     }
-    
+
     @Before
     public void setUp() {
         onset = new VirtualControlLoopEvent();
@@ -110,7 +113,7 @@ public class ControlLoopEventManagerTest {
         onset.getAai().put("vserver.selflink", "bar");
         onset.getAai().put("generic-vnf.vnf-id", "83f674e8-7555-44d7-9a39-bdc3770b0491");
         onset.setClosedLoopEventStatus(ControlLoopEventStatus.ONSET);
-        
+
         PolicyEngine.manager.setEnvironmentProperty("aai.url", "http://localhost:6666");
     }
 
@@ -366,7 +369,7 @@ public class ControlLoopEventManagerTest {
     public static AaiGetVserverResponse getQueryByVserverName2(String urlGet, String username, String password,
             UUID requestId, String key) {
         AaiGetVserverResponse response = new AaiGetVserverResponse();
-        
+
         AaiNqVServer svr = new AaiNqVServer();
 
         svr.setVserverId("d0668d4f-c25e-4a1b-87c4-83845c01efd8");
@@ -407,7 +410,7 @@ public class ControlLoopEventManagerTest {
 
         relationshipList.getRelationships().add(relationship);
         svr.setRelationshipList(relationshipList);
-        
+
         response.getVserver().add(svr);
 
         return response;
@@ -894,7 +897,7 @@ public class ControlLoopEventManagerTest {
     @Test
     public void testQueryAai_AlreadyDisabled() throws AaiException {
         ControlLoopEventManager mgr = null;
-        
+
         try {
             onset.getAai().put(ControlLoopEventManager.GENERIC_VNF_IS_CLOSED_LOOP_DISABLED, Boolean.TRUE.toString());
             onset.getAai().put(ControlLoopEventManager.GENERIC_VNF_PROV_STATUS,
@@ -915,7 +918,7 @@ public class ControlLoopEventManagerTest {
     @Test
     public void testQueryAai_AlreadyInactive() throws AaiException {
         ControlLoopEventManager mgr = null;
-        
+
         try {
             onset.getAai().put(ControlLoopEventManager.GENERIC_VNF_IS_CLOSED_LOOP_DISABLED, Boolean.FALSE.toString());
             onset.getAai().put(ControlLoopEventManager.GENERIC_VNF_PROV_STATUS, "not-active2");
@@ -938,15 +941,15 @@ public class ControlLoopEventManagerTest {
 
         mgr = makeManager(onset);
         mgr.queryAai(onset);
-        
+
         assertNotNull(mgr.getVnfResponse());
         assertNull(mgr.getVserverResponse());
 
         AaiGetVnfResponse vnfresp = mgr.getVnfResponse();
-        
+
         // should not re-query
         mgr.queryAai(onset);
-        
+
         assertEquals(vnfresp, mgr.getVnfResponse());
         assertNull(mgr.getVserverResponse());
     }
@@ -954,22 +957,22 @@ public class ControlLoopEventManagerTest {
     @Test
     public void testQueryAai_QueryVnfByName() throws AaiException {
         ControlLoopEventManager mgr = null;
-        
+
         // vnf query by name
         onset.getAai().remove(ControlLoopEventManager.GENERIC_VNF_VNF_ID);
         onset.getAai().put(ControlLoopEventManager.GENERIC_VNF_VNF_NAME, "AVNFName");
 
         mgr = makeManager(onset);
         mgr.queryAai(onset);
-        
+
         assertNotNull(mgr.getVnfResponse());
         assertNull(mgr.getVserverResponse());
 
         AaiGetVnfResponse vnfresp = mgr.getVnfResponse();
-        
+
         // should not re-query
         mgr.queryAai(onset);
-        
+
         assertEquals(vnfresp, mgr.getVnfResponse());
         assertNull(mgr.getVserverResponse());
     }
@@ -977,10 +980,10 @@ public class ControlLoopEventManagerTest {
     @Test
     public void testQueryAai_QueryVnfById_Disabled() throws AaiException {
         ControlLoopEventManager mgr = null;
-        
+
         try {
             onset.getAai().put(ControlLoopEventManager.GENERIC_VNF_VNF_ID, "disableClosedLoop");
-            
+
             mgr = makeManager(onset);
             mgr.queryAai(onset);
 
@@ -988,7 +991,7 @@ public class ControlLoopEventManagerTest {
 
         } catch (AaiException expected) {
             assertEquals("is-closed-loop-disabled is set to true (query by vnf-id)", expected.getMessage());
-            
+
             assertNotNull(mgr.getVnfResponse());
             assertNull(mgr.getVserverResponse());
         }
@@ -1003,15 +1006,15 @@ public class ControlLoopEventManagerTest {
 
         mgr = makeManager(onset);
         mgr.queryAai(onset);
-        
+
         assertNull(mgr.getVnfResponse());
         assertNotNull(mgr.getVserverResponse());
-        
+
         AaiGetVserverResponse vsvresp = mgr.getVserverResponse();
 
         // should not re-query
         mgr.queryAai(onset);
-        
+
         assertNull(mgr.getVnfResponse());
         assertEquals(vsvresp, mgr.getVserverResponse());
     }
@@ -1019,11 +1022,11 @@ public class ControlLoopEventManagerTest {
     @Test
     public void testQueryAai_QueryVserver_Disabled() throws AaiException {
         ControlLoopEventManager mgr = null;
-        
+
         try {
             onset.getAai().remove(ControlLoopEventManager.GENERIC_VNF_VNF_ID);
             onset.getAai().put(ControlLoopEventManager.VSERVER_VSERVER_NAME, "disableClosedLoop");
-            
+
             mgr = makeManager(onset);
             mgr.queryAai(onset);
 
@@ -1031,7 +1034,7 @@ public class ControlLoopEventManagerTest {
 
         } catch (AaiException expected) {
             assertEquals("is-closed-loop-disabled is set to true (query by vserver-name)", expected.getMessage());
-            
+
             assertNull(mgr.getVnfResponse());
             assertNotNull(mgr.getVserverResponse());
         }
@@ -1040,8 +1043,8 @@ public class ControlLoopEventManagerTest {
     @Test(expected = AaiException.class)
     public void testQueryAai_QueryException() throws AaiException {
         // Force AAI errors
-        PolicyEngine.manager.setEnvironmentProperty("aai.url", "http://localhost:9999");
-        
+        PolicyEngine.manager.setEnvironmentProperty("aai.url", INVALID_URL);
+
         makeManager(onset).queryAai(onset);
     }
 
@@ -1066,11 +1069,11 @@ public class ControlLoopEventManagerTest {
     public void testProcessVNFResponse_Error() throws Exception {
         thrown.expect(AaiException.class);
         thrown.expectMessage("AAI Responded with a request error (query by vnf-name)");
-        
+
         AaiGetVnfResponse resp = new AaiGetVnfResponse();
-        
+
         resp.setRequestError(new AaiNqRequestError());
-        
+
         resp.setIsClosedLoopDisabled(false);
         resp.setProvStatus(ControlLoopEventManager.PROV_STATUS_ACTIVE);
         Whitebox.invokeMethod(ControlLoopEventManager.class, "processVNFResponse", resp, false);
@@ -1080,7 +1083,7 @@ public class ControlLoopEventManagerTest {
     public void testProcessVNFResponse_Disabled() throws Exception {
         thrown.expect(AaiException.class);
         thrown.expectMessage("is-closed-loop-disabled is set to true (query by vnf-id)");
-        
+
         AaiGetVnfResponse resp = new AaiGetVnfResponse();
         resp.setIsClosedLoopDisabled(true);
         resp.setProvStatus(ControlLoopEventManager.PROV_STATUS_ACTIVE);
@@ -1101,10 +1104,10 @@ public class ControlLoopEventManagerTest {
     @Test
     public void testProcessVserverResponse_Success() throws Exception {
         AaiGetVserverResponse resp = new AaiGetVserverResponse();
-        
+
         AaiNqVServer svr = new AaiNqVServer();
         resp.getVserver().add(svr);
-        
+
         svr.setIsClosedLoopDisabled(false);
         svr.setProvStatus(ControlLoopEventManager.PROV_STATUS_ACTIVE);
         Whitebox.invokeMethod(ControlLoopEventManager.class, "processVServerResponse", resp);
@@ -1125,15 +1128,15 @@ public class ControlLoopEventManagerTest {
         thrown.expectMessage("AAI Responded with a request error (query by vserver-name)");
 
         AaiGetVserverResponse resp = new AaiGetVserverResponse();
-        
+
         resp.setRequestError(new AaiNqRequestError());
-        
+
         AaiNqVServer svr = new AaiNqVServer();
         resp.getVserver().add(svr);
-        
+
         svr.setIsClosedLoopDisabled(false);
         svr.setProvStatus(ControlLoopEventManager.PROV_STATUS_ACTIVE);
-        
+
         Whitebox.invokeMethod(ControlLoopEventManager.class, "processVServerResponse", resp);
     }
 
@@ -1145,7 +1148,7 @@ public class ControlLoopEventManagerTest {
         AaiGetVserverResponse resp = new AaiGetVserverResponse();
         AaiNqVServer svr = new AaiNqVServer();
         resp.getVserver().add(svr);
-        
+
         svr.setIsClosedLoopDisabled(true);
         svr.setProvStatus(ControlLoopEventManager.PROV_STATUS_ACTIVE);
         Whitebox.invokeMethod(ControlLoopEventManager.class, "processVServerResponse", resp);
@@ -1159,7 +1162,7 @@ public class ControlLoopEventManagerTest {
         AaiGetVserverResponse resp = new AaiGetVserverResponse();
         AaiNqVServer svr = new AaiNqVServer();
         resp.getVserver().add(svr);
-        
+
         svr.setIsClosedLoopDisabled(false);
         svr.setProvStatus("inactive1");
         Whitebox.invokeMethod(ControlLoopEventManager.class, "processVServerResponse", resp);
@@ -1168,63 +1171,63 @@ public class ControlLoopEventManagerTest {
     @Test
     public void testIsClosedLoopDisabled() {
         Map<String, String> aai = onset.getAai();
-        
+
         // null, null
         aai.remove(ControlLoopEventManager.GENERIC_VNF_IS_CLOSED_LOOP_DISABLED);
         aai.remove(ControlLoopEventManager.VSERVER_IS_CLOSED_LOOP_DISABLED);
         assertFalse(ControlLoopEventManager.isClosedLoopDisabled(onset));
-        
+
         // null, false
         aai.remove(ControlLoopEventManager.GENERIC_VNF_IS_CLOSED_LOOP_DISABLED);
         aai.put(ControlLoopEventManager.VSERVER_IS_CLOSED_LOOP_DISABLED, Boolean.FALSE.toString());
         assertFalse(ControlLoopEventManager.isClosedLoopDisabled(onset));
-        
+
         // false, null
         aai.put(ControlLoopEventManager.GENERIC_VNF_IS_CLOSED_LOOP_DISABLED, Boolean.FALSE.toString());
         aai.remove(ControlLoopEventManager.VSERVER_IS_CLOSED_LOOP_DISABLED);
         assertFalse(ControlLoopEventManager.isClosedLoopDisabled(onset));
-        
+
         // null, true
         aai.remove(ControlLoopEventManager.GENERIC_VNF_IS_CLOSED_LOOP_DISABLED);
         aai.put(ControlLoopEventManager.VSERVER_IS_CLOSED_LOOP_DISABLED, Boolean.TRUE.toString());
         assertTrue(ControlLoopEventManager.isClosedLoopDisabled(onset));
-        
+
         // true, null
         aai.put(ControlLoopEventManager.GENERIC_VNF_IS_CLOSED_LOOP_DISABLED, Boolean.TRUE.toString());
         aai.remove(ControlLoopEventManager.VSERVER_IS_CLOSED_LOOP_DISABLED);
         assertTrue(ControlLoopEventManager.isClosedLoopDisabled(onset));
     }
-    
+
     @Test
     public void testIsProvStatusInactive() {
         Map<String, String> aai = onset.getAai();
-        
+
         // null, null
         aai.remove(ControlLoopEventManager.GENERIC_VNF_PROV_STATUS);
         aai.remove(ControlLoopEventManager.VSERVER_PROV_STATUS);
         assertFalse(ControlLoopEventManager.isProvStatusInactive(onset));
-        
+
         // null, active
         aai.remove(ControlLoopEventManager.GENERIC_VNF_PROV_STATUS);
         aai.put(ControlLoopEventManager.VSERVER_PROV_STATUS, ControlLoopEventManager.PROV_STATUS_ACTIVE);
         assertFalse(ControlLoopEventManager.isProvStatusInactive(onset));
-        
+
         // active, null
         aai.put(ControlLoopEventManager.GENERIC_VNF_PROV_STATUS, ControlLoopEventManager.PROV_STATUS_ACTIVE);
         aai.remove(ControlLoopEventManager.VSERVER_PROV_STATUS);
         assertFalse(ControlLoopEventManager.isProvStatusInactive(onset));
-        
+
         // null, inactive
         aai.remove(ControlLoopEventManager.GENERIC_VNF_PROV_STATUS);
         aai.put(ControlLoopEventManager.VSERVER_PROV_STATUS, "other1");
         assertTrue(ControlLoopEventManager.isProvStatusInactive(onset));
-        
+
         // inactive, null
         aai.put(ControlLoopEventManager.GENERIC_VNF_PROV_STATUS, "other2");
         aai.remove(ControlLoopEventManager.VSERVER_PROV_STATUS);
         assertTrue(ControlLoopEventManager.isProvStatusInactive(onset));
     }
-    
+
     @Test
     public void testIsAaiTrue() {
         assertTrue(ControlLoopEventManager.isAaiTrue("tRuE"));
@@ -1233,11 +1236,44 @@ public class ControlLoopEventManagerTest {
         assertTrue(ControlLoopEventManager.isAaiTrue("yES"));
         assertTrue(ControlLoopEventManager.isAaiTrue("Y"));
         assertTrue(ControlLoopEventManager.isAaiTrue("y"));
-        
+
         assertFalse(ControlLoopEventManager.isAaiTrue("no"));
         assertFalse(ControlLoopEventManager.isAaiTrue(null));
     }
 
+    @Test
+    public void testGetNqVserverFromAai() throws Exception {
+
+        // empty vserver name
+        ControlLoopEventManager manager = makeManager(onset);
+        manager.activate(onset);
+        assertNull(manager.getNqVserverFromAai());
+
+
+        // re-create manager with a vserver name in the onset
+        onset.getAai().put(ControlLoopEventManager.VSERVER_VSERVER_NAME, "my-name");
+        manager = makeManager(onset);
+        manager.activate(onset);
+
+        AaiNqResponseWrapper resp = manager.getNqVserverFromAai();
+        assertNotNull(resp);
+        assertEquals(onset.getRequestId(), resp.getRequestId());
+        assertNotNull(resp.getAaiNqResponse());
+        assertFalse(resp.getAaiNqResponse().getInventoryResponseItems().isEmpty());
+
+        // re-query should return the same object
+        assertTrue(resp == manager.getNqVserverFromAai());
+
+
+        // Force AAI error
+        PolicyEngine.manager.setEnvironmentProperty("aai.url", INVALID_URL);
+
+        // re-create manager
+        manager = makeManager(onset);
+        manager.activate(onset);
+        assertNull(manager.getNqVserverFromAai());
+    }
+
     private ControlLoopEventManager makeManager(VirtualControlLoopEvent event) {
         return new ControlLoopEventManager(event.getClosedLoopControlName(), event.getRequestId());
     }