2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2017-2019 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.EventProtocolParams;
58 import org.onap.policy.drools.protocol.coders.JsonProtocolFilter;
59 import org.onap.policy.drools.system.PolicyController;
60 import org.onap.policy.drools.system.PolicyEngine;
61 import org.slf4j.Logger;
62 import org.slf4j.LoggerFactory;
64 public class ControlLoopFailureTest implements TopicListener {
66 private static final Logger logger = LoggerFactory.getLogger(ControlLoopFailureTest.class);
68 private static List<? extends TopicSink> noopTopics;
70 private static KieSession kieSession;
71 private static SupportUtil.Pair<ControlLoopPolicy, String> pair;
72 private UUID requestId;
73 private UUID requestId2;
74 private UUID requestId3;
75 private int eventCount;
78 /* Set environment properties */
79 SupportUtil.setAaiProps();
80 SupportUtil.setGuardProps();
81 SupportUtil.setPuProp();
88 public static void setUpSimulator() {
89 PolicyEngine.manager.configure(new Properties());
90 assertTrue(PolicyEngine.manager.start());
91 Properties noopSinkProperties = new Properties();
92 noopSinkProperties.put(PolicyEndPointProperties.PROPERTY_NOOP_SINK_TOPICS, "APPC-LCM-READ,POLICY-CL-MGT");
93 noopSinkProperties.put("noop.sink.topics.APPC-LCM-READ.events", "org.onap.policy.appclcm.LcmRequestWrapper");
94 noopSinkProperties.put("noop.sink.topics.APPC-LCM-READ.events.custom.gson",
95 "org.onap.policy.appclcm.util.Serialization,gson");
96 noopSinkProperties.put("noop.sink.topics.POLICY-CL-MGT.events",
97 "org.onap.policy.controlloop.VirtualControlLoopNotification");
98 noopSinkProperties.put("noop.sink.topics.POLICY-CL-MGT.events.custom.gson",
99 "org.onap.policy.controlloop.util.Serialization,gsonPretty");
100 noopTopics = TopicEndpoint.manager.addTopicSinks(noopSinkProperties);
102 EventProtocolCoder.manager.addEncoder(EventProtocolParams.builder()
103 .groupId("junit.groupId")
104 .artifactId("junit.artifactId")
105 .topic("POLICY-CL-MGT")
106 .eventClass("org.onap.policy.controlloop.VirtualControlLoopNotification")
107 .protocolFilter(new JsonProtocolFilter())
108 .modelClassLoaderHash(1111));
109 EventProtocolCoder.manager.addEncoder(EventProtocolParams.builder()
110 .groupId("junit.groupId")
111 .artifactId("junit.artifactId")
112 .topic("APPC-LCM-READ")
113 .eventClass("org.onap.policy.appclcm.LcmRequestWrapper")
114 .protocolFilter(new JsonProtocolFilter())
115 .modelClassLoaderHash(1111));
117 SupportUtil.buildAaiSim();
118 SupportUtil.buildGuardSim();
119 } catch (Exception e) {
120 fail(e.getMessage());
124 * Start the kie session
127 kieSession = startSession(
128 "../archetype-cl-amsterdam/src/main/resources/archetype-resources"
129 + "/src/main/resources/__closedLoopControlName__.drl",
130 "src/test/resources/yaml/policy_ControlLoop_vCPE.yaml",
131 "service=ServiceDemo;resource=Res1Demo;type=operational", "CL_vCPE",
132 "org.onap.closed_loop.ServiceDemo:VNFS:1.0.0");
133 } catch (IOException e) {
135 logger.debug("Could not create kieSession");
136 fail("Could not create kieSession");
141 * Tear down simulator.
144 public static void tearDownSimulator() {
146 * Gracefully shut down the kie session
148 kieSession.dispose();
150 PolicyEngine.manager.stop();
151 HttpServletServer.factory.destroy();
152 PolicyController.factory.shutdown();
153 TopicEndpoint.manager.shutdown();
157 * This test case tests the scenario where 3 events occur and 2 of the requests refer to the
158 * same target entity while the 3rd is for another entity. The expected result is that the event
159 * with the duplicate target entity will have a final success result for one of the events, and
160 * a rejected message for the one that was unable to obtain the lock. The event that is
161 * referring to a different target entity should be able to obtain a lock since it is a
162 * different target. After processing of all events there should only be the params object left
166 public void targetLockedTest() {
169 * Allows the PolicyEngine to callback to this object to notify that there is an event ready
170 * to be pulled from the queue
172 for (TopicSink sink : noopTopics) {
173 assertTrue(sink.start());
178 * Create a unique requestId
180 requestId = UUID.randomUUID();
183 * This will be a unique request for another target entity
185 requestId2 = UUID.randomUUID();
188 * This will be a request duplicating the target entity of the first request
190 requestId3 = UUID.randomUUID();
193 * Simulate an onset event the policy engine will receive from DCAE to kick off processing
196 sendEvent(pair.first, requestId, ControlLoopEventStatus.ONSET, "vnf01");
199 * Send a second event requesting an action for a different target entity
201 sendEvent(pair.first, requestId2, ControlLoopEventStatus.ONSET, "vnf02");
204 * Send a second event for a different target to ensure there are no problems with obtaining
205 * a lock for a different
207 kieSession.fireUntilHalt();
209 // allow object clean-up
210 kieSession.fireAllRules();
213 * The only fact in memory should be Params
215 assertEquals(1, kieSession.getFactCount());
218 * Print what's left in memory
220 dumpFacts(kieSession);
225 * This method will start a kie session and instantiate the Policy Engine.
227 * @param droolsTemplate the DRL rules file
228 * @param yamlFile the yaml file containing the policies
229 * @param policyScope scope for policy
230 * @param policyName name of the policy
231 * @param policyVersion version of the policy
232 * @return the kieSession to be used to insert facts
233 * @throws IOException throws IO exception
235 private static KieSession startSession(String droolsTemplate, String yamlFile, String policyScope,
236 String policyName, String policyVersion) throws IOException {
239 * Load policies from yaml
241 pair = SupportUtil.loadYaml(yamlFile);
243 assertNotNull(pair.first);
244 assertNotNull(pair.first.getControlLoop());
245 assertNotNull(pair.first.getControlLoop().getControlLoopName());
246 assertTrue(pair.first.getControlLoop().getControlLoopName().length() > 0);
249 * Construct a kie session
251 final KieSession kieSession = SupportUtil.buildContainer(droolsTemplate,
252 pair.first.getControlLoop().getControlLoopName(),
253 policyScope, policyName, policyVersion, URLEncoder.encode(pair.second, "UTF-8"));
256 * Retrieve the Policy Engine
259 logger.debug("============");
260 logger.debug(URLEncoder.encode(pair.second, "UTF-8"));
261 logger.debug("============");
269 * @see org.onap.policy.drools.PolicyEngineListener#newEventNotification(java.lang.String)
272 public void onTopicEvent(CommInfrastructure commType, String topic, String event) {
274 * Pull the object that was sent out to DMAAP and make sure it is a ControlLoopNoticiation
278 if ("POLICY-CL-MGT".equals(topic)) {
279 obj = org.onap.policy.controlloop.util.Serialization.gsonJunit.fromJson(event,
280 org.onap.policy.controlloop.VirtualControlLoopNotification.class);
281 } else if ("APPC-LCM-READ".equals(topic)) {
282 obj = org.onap.policy.appclcm.util.Serialization.gsonJunit.fromJson(event,
283 org.onap.policy.appclcm.LcmRequestWrapper.class);
286 if (obj instanceof VirtualControlLoopNotification) {
287 VirtualControlLoopNotification notification = (VirtualControlLoopNotification) obj;
288 String policyName = notification.getPolicyName();
289 if (policyName.endsWith("EVENT")) {
290 logger.debug("Rule Fired: " + notification.getPolicyName());
291 assertTrue(ControlLoopNotificationType.ACTIVE.equals(notification.getNotification()));
292 } else if (policyName.endsWith("GUARD_NOT_YET_QUERIED")) {
293 logger.debug("Rule Fired: " + notification.getPolicyName());
294 assertTrue(ControlLoopNotificationType.OPERATION.equals(notification.getNotification()));
295 assertNotNull(notification.getMessage());
296 assertTrue(notification.getMessage().startsWith("Sending guard query"));
297 } else if (policyName.endsWith("GUARD.RESPONSE")) {
298 logger.debug("Rule Fired: " + notification.getPolicyName());
299 assertTrue(ControlLoopNotificationType.OPERATION.equals(notification.getNotification()));
300 assertNotNull(notification.getMessage());
301 assertTrue(notification.getMessage().toLowerCase().endsWith("permit"));
302 } else if (policyName.endsWith("GUARD_PERMITTED")) {
303 logger.debug("Rule Fired: " + notification.getPolicyName());
304 assertTrue(ControlLoopNotificationType.OPERATION.equals(notification.getNotification()));
305 assertNotNull(notification.getMessage());
306 assertTrue(notification.getMessage().startsWith("actor=APPC"));
307 } else if (policyName.endsWith("OPERATION.TIMEOUT")) {
308 logger.debug("Rule Fired: " + notification.getPolicyName());
310 logger.debug("The operation timed out");
311 fail("Operation Timed Out");
312 } else if (policyName.endsWith("APPC.LCM.RESPONSE")) {
313 logger.debug("Rule Fired: " + notification.getPolicyName());
314 assertTrue(ControlLoopNotificationType.OPERATION_SUCCESS.equals(notification.getNotification()));
315 assertNotNull(notification.getMessage());
316 assertTrue(notification.getMessage().startsWith("actor=APPC"));
317 if (requestId.equals(notification.getRequestId())) {
318 sendEvent(pair.first, requestId, ControlLoopEventStatus.ABATED, "vnf01");
319 } else if (requestId2.equals(notification.getRequestId())) {
320 sendEvent(pair.first, requestId2, ControlLoopEventStatus.ABATED, "vnf02");
322 } else if (policyName.endsWith("EVENT.MANAGER")) {
323 logger.debug("Rule Fired: " + notification.getPolicyName());
324 if (requestId3.equals(notification.getRequestId())) {
326 * The event with the duplicate target should be rejected
328 assertTrue(ControlLoopNotificationType.REJECTED.equals(notification.getNotification()));
330 assertTrue(ControlLoopNotificationType.FINAL_SUCCESS.equals(notification.getNotification()));
332 if (++eventCount == 3) {
335 } else if (policyName.endsWith("EVENT.MANAGER.TIMEOUT")) {
336 logger.debug("Rule Fired: " + notification.getPolicyName());
338 logger.debug("The control loop timed out");
339 fail("Control Loop Timed Out");
341 } else if (obj instanceof LcmRequestWrapper) {
343 * The request should be of type LCMRequestWrapper and the subrequestid should be 1
345 LcmRequestWrapper dmaapRequest = (LcmRequestWrapper) obj;
346 LcmRequest appcRequest = dmaapRequest.getBody();
347 assertTrue(appcRequest.getCommonHeader().getSubRequestId().equals("1"));
349 logger.debug("\n============ APPC received the request!!! ===========\n");
352 * Simulate a success response from APPC and insert the response into the working memory
354 LcmResponseWrapper dmaapResponse = new LcmResponseWrapper();
355 LcmResponse appcResponse = new LcmResponse(appcRequest);
356 appcResponse.getStatus().setCode(400);
357 appcResponse.getStatus().setMessage("AppC success");
358 dmaapResponse.setBody(appcResponse);
361 * Interrupting with a different request for the same target entity to check if lock
364 if (requestId.equals(appcResponse.getCommonHeader().getRequestId())) {
365 sendEvent(pair.first, requestId3, ControlLoopEventStatus.ONSET, "vnf01");
367 kieSession.insert(dmaapResponse);
372 * This method is used to simulate event messages from DCAE that start the control loop (onset
373 * message) or end the control loop (abatement message).
375 * @param policy the controlLoopName comes from the policy
376 * @param requestId the requestId for this event
377 * @param status could be onset or abated
378 * @param target the target entity to take an action on
380 protected void sendEvent(ControlLoopPolicy policy, UUID requestId, ControlLoopEventStatus status, String target) {
381 VirtualControlLoopEvent event = new VirtualControlLoopEvent();
382 event.setClosedLoopControlName(policy.getControlLoop().getControlLoopName());
383 event.setRequestId(requestId);
384 event.setTarget("generic-vnf.vnf-id");
385 event.setClosedLoopAlarmStart(Instant.now());
386 event.setAai(new HashMap<>());
387 event.getAai().put("generic-vnf.vnf-id", target);
388 event.setClosedLoopEventStatus(status);
389 kieSession.insert(event);
393 * This method will dump all the facts in the working memory.
395 * @param kieSession the session containing the facts
397 public void dumpFacts(KieSession kieSession) {
398 logger.debug("Fact Count: {}", kieSession.getFactCount());
399 for (FactHandle handle : kieSession.getFactHandles()) {
400 logger.debug("FACT: {}", handle);