2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
6 * ================================================================================
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 * ============LICENSE_END=========================================================
21 package org.onap.policy.template.demo;
23 import static org.junit.Assert.assertEquals;
24 import static org.junit.Assert.assertNotNull;
25 import static org.junit.Assert.assertTrue;
26 import static org.junit.Assert.fail;
28 import java.io.IOException;
29 import java.net.URLEncoder;
30 import java.time.Instant;
31 import java.util.HashMap;
32 import java.util.List;
33 import java.util.Properties;
34 import java.util.UUID;
36 import org.junit.AfterClass;
37 import org.junit.BeforeClass;
38 import org.junit.Test;
39 import org.kie.api.runtime.KieSession;
40 import org.kie.api.runtime.rule.FactHandle;
41 import org.onap.policy.appclcm.LcmRequest;
42 import org.onap.policy.appclcm.LcmRequestWrapper;
43 import org.onap.policy.appclcm.LcmResponse;
44 import org.onap.policy.appclcm.LcmResponseWrapper;
45 import org.onap.policy.common.endpoints.event.comm.Topic.CommInfrastructure;
46 import org.onap.policy.common.endpoints.event.comm.TopicEndpoint;
47 import org.onap.policy.common.endpoints.event.comm.TopicListener;
48 import org.onap.policy.common.endpoints.event.comm.TopicSink;
49 import org.onap.policy.common.endpoints.http.server.HttpServletServer;
50 import org.onap.policy.common.endpoints.properties.PolicyEndPointProperties;
51 import org.onap.policy.controlloop.ControlLoopEventStatus;
52 import org.onap.policy.controlloop.ControlLoopNotificationType;
53 import org.onap.policy.controlloop.VirtualControlLoopEvent;
54 import org.onap.policy.controlloop.VirtualControlLoopNotification;
55 import org.onap.policy.controlloop.policy.ControlLoopPolicy;
56 import org.onap.policy.drools.protocol.coders.EventProtocolCoder;
57 import org.onap.policy.drools.protocol.coders.JsonProtocolFilter;
58 import org.onap.policy.drools.system.PolicyController;
59 import org.onap.policy.drools.system.PolicyEngine;
60 import org.slf4j.Logger;
61 import org.slf4j.LoggerFactory;
63 public class ControlLoopFailureTest implements TopicListener {
65 private static final Logger logger = LoggerFactory.getLogger(ControlLoopFailureTest.class);
67 private static List<? extends TopicSink> noopTopics;
69 private static KieSession kieSession;
70 private static Util.Pair<ControlLoopPolicy, String> pair;
71 private UUID requestId;
72 private UUID requestId2;
73 private UUID requestId3;
74 private int eventCount;
77 /* Set environment properties */
87 public static void setUpSimulator() {
88 PolicyEngine.manager.configure(new Properties());
89 assertTrue(PolicyEngine.manager.start());
90 Properties noopSinkProperties = new Properties();
91 noopSinkProperties.put(PolicyEndPointProperties.PROPERTY_NOOP_SINK_TOPICS, "APPC-LCM-READ,POLICY-CL-MGT");
92 noopSinkProperties.put("noop.sink.topics.APPC-LCM-READ.events", "org.onap.policy.appclcm.LcmRequestWrapper");
93 noopSinkProperties.put("noop.sink.topics.APPC-LCM-READ.events.custom.gson",
94 "org.onap.policy.appclcm.util.Serialization,gson");
95 noopSinkProperties.put("noop.sink.topics.POLICY-CL-MGT.events",
96 "org.onap.policy.controlloop.VirtualControlLoopNotification");
97 noopSinkProperties.put("noop.sink.topics.POLICY-CL-MGT.events.custom.gson",
98 "org.onap.policy.controlloop.util.Serialization,gsonPretty");
99 noopTopics = TopicEndpoint.manager.addTopicSinks(noopSinkProperties);
101 EventProtocolCoder.manager.addEncoder("junit.groupId", "junit.artifactId", "POLICY-CL-MGT",
102 "org.onap.policy.controlloop.VirtualControlLoopNotification", new JsonProtocolFilter(), null, null,
104 EventProtocolCoder.manager.addEncoder("junit.groupId", "junit.artifactId", "APPC-LCM-READ",
105 "org.onap.policy.appclcm.LcmRequestWrapper", new JsonProtocolFilter(), null, null, 1111);
108 Util.buildGuardSim();
109 } catch (Exception e) {
110 fail(e.getMessage());
114 * Start the kie session
117 kieSession = startSession(
118 "../archetype-cl-amsterdam/src/main/resources/archetype-resources"
119 + "/src/main/resources/__closedLoopControlName__.drl",
120 "src/test/resources/yaml/policy_ControlLoop_vCPE.yaml",
121 "service=ServiceDemo;resource=Res1Demo;type=operational", "CL_vCPE",
122 "org.onap.closed_loop.ServiceDemo:VNFS:1.0.0");
123 } catch (IOException e) {
125 logger.debug("Could not create kieSession");
126 fail("Could not create kieSession");
131 * Tear down simulator.
134 public static void tearDownSimulator() {
136 * Gracefully shut down the kie session
138 kieSession.dispose();
140 PolicyEngine.manager.stop();
141 HttpServletServer.factory.destroy();
142 PolicyController.factory.shutdown();
143 TopicEndpoint.manager.shutdown();
147 * This test case tests the scenario where 3 events occur and 2 of the requests refer to the
148 * same target entity while the 3rd is for another entity. The expected result is that the event
149 * with the duplicate target entity will have a final success result for one of the events, and
150 * a rejected message for the one that was unable to obtain the lock. The event that is
151 * referring to a different target entity should be able to obtain a lock since it is a
152 * different target. After processing of all events there should only be the params object left
156 public void targetLockedTest() {
159 * Allows the PolicyEngine to callback to this object to notify that there is an event ready
160 * to be pulled from the queue
162 for (TopicSink sink : noopTopics) {
163 assertTrue(sink.start());
168 * Create a unique requestId
170 requestId = UUID.randomUUID();
173 * This will be a unique request for another target entity
175 requestId2 = UUID.randomUUID();
178 * This will be a request duplicating the target entity of the first request
180 requestId3 = UUID.randomUUID();
183 * Simulate an onset event the policy engine will receive from DCAE to kick off processing
186 sendEvent(pair.first, requestId, ControlLoopEventStatus.ONSET, "vnf01");
189 * Send a second event requesting an action for a different target entity
191 sendEvent(pair.first, requestId2, ControlLoopEventStatus.ONSET, "vnf02");
194 * Send a second event for a different target to ensure there are no problems with obtaining
195 * a lock for a different
197 kieSession.fireUntilHalt();
200 * The only fact in memory should be Params
202 assertEquals(1, kieSession.getFactCount());
205 * Print what's left in memory
207 dumpFacts(kieSession);
212 * This method will start a kie session and instantiate the Policy Engine.
214 * @param droolsTemplate the DRL rules file
215 * @param yamlFile the yaml file containing the policies
216 * @param policyScope scope for policy
217 * @param policyName name of the policy
218 * @param policyVersion version of the policy
219 * @return the kieSession to be used to insert facts
220 * @throws IOException throws IO exception
222 private static KieSession startSession(String droolsTemplate, String yamlFile, String policyScope,
223 String policyName, String policyVersion) throws IOException {
226 * Load policies from yaml
228 pair = Util.loadYaml(yamlFile);
230 assertNotNull(pair.first);
231 assertNotNull(pair.first.getControlLoop());
232 assertNotNull(pair.first.getControlLoop().getControlLoopName());
233 assertTrue(pair.first.getControlLoop().getControlLoopName().length() > 0);
236 * Construct a kie session
238 final KieSession kieSession = Util.buildContainer(droolsTemplate,
239 pair.first.getControlLoop().getControlLoopName(),
240 policyScope, policyName, policyVersion, URLEncoder.encode(pair.second, "UTF-8"));
243 * Retrieve the Policy Engine
246 logger.debug("============");
247 logger.debug(URLEncoder.encode(pair.second, "UTF-8"));
248 logger.debug("============");
256 * @see org.onap.policy.drools.PolicyEngineListener#newEventNotification(java.lang.String)
259 public void onTopicEvent(CommInfrastructure commType, String topic, String event) {
261 * Pull the object that was sent out to DMAAP and make sure it is a ControlLoopNoticiation
265 if ("POLICY-CL-MGT".equals(topic)) {
266 obj = org.onap.policy.controlloop.util.Serialization.gsonJunit.fromJson(event,
267 org.onap.policy.controlloop.VirtualControlLoopNotification.class);
268 } else if ("APPC-LCM-READ".equals(topic)) {
269 obj = org.onap.policy.appclcm.util.Serialization.gsonJunit.fromJson(event,
270 org.onap.policy.appclcm.LcmRequestWrapper.class);
273 if (obj instanceof VirtualControlLoopNotification) {
274 VirtualControlLoopNotification notification = (VirtualControlLoopNotification) obj;
275 String policyName = notification.getPolicyName();
276 if (policyName.endsWith("EVENT")) {
277 logger.debug("Rule Fired: " + notification.getPolicyName());
278 assertTrue(ControlLoopNotificationType.ACTIVE.equals(notification.getNotification()));
279 } else if (policyName.endsWith("GUARD_NOT_YET_QUERIED")) {
280 logger.debug("Rule Fired: " + notification.getPolicyName());
281 assertTrue(ControlLoopNotificationType.OPERATION.equals(notification.getNotification()));
282 assertNotNull(notification.getMessage());
283 assertTrue(notification.getMessage().startsWith("Sending guard query"));
284 } else if (policyName.endsWith("GUARD.RESPONSE")) {
285 logger.debug("Rule Fired: " + notification.getPolicyName());
286 assertTrue(ControlLoopNotificationType.OPERATION.equals(notification.getNotification()));
287 assertNotNull(notification.getMessage());
288 assertTrue(notification.getMessage().toLowerCase().endsWith("permit"));
289 } else if (policyName.endsWith("GUARD_PERMITTED")) {
290 logger.debug("Rule Fired: " + notification.getPolicyName());
291 assertTrue(ControlLoopNotificationType.OPERATION.equals(notification.getNotification()));
292 assertNotNull(notification.getMessage());
293 assertTrue(notification.getMessage().startsWith("actor=APPC"));
294 } else if (policyName.endsWith("OPERATION.TIMEOUT")) {
295 logger.debug("Rule Fired: " + notification.getPolicyName());
297 logger.debug("The operation timed out");
298 fail("Operation Timed Out");
299 } else if (policyName.endsWith("APPC.LCM.RESPONSE")) {
300 logger.debug("Rule Fired: " + notification.getPolicyName());
301 assertTrue(ControlLoopNotificationType.OPERATION_SUCCESS.equals(notification.getNotification()));
302 assertNotNull(notification.getMessage());
303 assertTrue(notification.getMessage().startsWith("actor=APPC"));
304 if (requestId.equals(notification.getRequestId())) {
305 sendEvent(pair.first, requestId, ControlLoopEventStatus.ABATED, "vnf01");
306 } else if (requestId2.equals(notification.getRequestId())) {
307 sendEvent(pair.first, requestId2, ControlLoopEventStatus.ABATED, "vnf02");
309 } else if (policyName.endsWith("EVENT.MANAGER")) {
310 logger.debug("Rule Fired: " + notification.getPolicyName());
311 if (requestId3.equals(notification.getRequestId())) {
313 * The event with the duplicate target should be rejected
315 assertTrue(ControlLoopNotificationType.REJECTED.equals(notification.getNotification()));
317 assertTrue(ControlLoopNotificationType.FINAL_SUCCESS.equals(notification.getNotification()));
319 if (++eventCount == 3) {
322 } else if (policyName.endsWith("EVENT.MANAGER.TIMEOUT")) {
323 logger.debug("Rule Fired: " + notification.getPolicyName());
325 logger.debug("The control loop timed out");
326 fail("Control Loop Timed Out");
328 } else if (obj instanceof LcmRequestWrapper) {
330 * The request should be of type LCMRequestWrapper and the subrequestid should be 1
332 LcmRequestWrapper dmaapRequest = (LcmRequestWrapper) obj;
333 LcmRequest appcRequest = dmaapRequest.getBody();
334 assertTrue(appcRequest.getCommonHeader().getSubRequestId().equals("1"));
336 logger.debug("\n============ APPC received the request!!! ===========\n");
339 * Simulate a success response from APPC and insert the response into the working memory
341 LcmResponseWrapper dmaapResponse = new LcmResponseWrapper();
342 LcmResponse appcResponse = new LcmResponse(appcRequest);
343 appcResponse.getStatus().setCode(400);
344 appcResponse.getStatus().setMessage("AppC success");
345 dmaapResponse.setBody(appcResponse);
348 * Interrupting with a different request for the same target entity to check if lock
351 if (requestId.equals(appcResponse.getCommonHeader().getRequestId())) {
352 sendEvent(pair.first, requestId3, ControlLoopEventStatus.ONSET, "vnf01");
354 kieSession.insert(dmaapResponse);
359 * This method is used to simulate event messages from DCAE that start the control loop (onset
360 * message) or end the control loop (abatement message).
362 * @param policy the controlLoopName comes from the policy
363 * @param requestID the requestId for this event
364 * @param status could be onset or abated
365 * @param target the target entity to take an action on
367 protected void sendEvent(ControlLoopPolicy policy, UUID requestId, ControlLoopEventStatus status, String target) {
368 VirtualControlLoopEvent event = new VirtualControlLoopEvent();
369 event.setClosedLoopControlName(policy.getControlLoop().getControlLoopName());
370 event.setRequestId(requestId);
371 event.setTarget("generic-vnf.vnf-id");
372 event.setClosedLoopAlarmStart(Instant.now());
373 event.setAai(new HashMap<>());
374 event.getAai().put("generic-vnf.vnf-id", target);
375 event.setClosedLoopEventStatus(status);
376 kieSession.insert(event);
380 * This method will dump all the facts in the working memory.
382 * @param kieSession the session containing the facts
384 public void dumpFacts(KieSession kieSession) {
385 logger.debug("Fact Count: {}", kieSession.getFactCount());
386 for (FactHandle handle : kieSession.getFactHandles()) {
387 logger.debug("FACT: {}", handle);