2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2017 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.*;
25 import java.io.IOException;
26 import java.net.URLEncoder;
27 import java.time.Instant;
28 import java.util.HashMap;
29 import java.util.List;
30 import java.util.Properties;
31 import java.util.UUID;
33 import org.junit.AfterClass;
34 import org.junit.BeforeClass;
35 import org.junit.Test;
36 import org.kie.api.runtime.KieSession;
37 import org.kie.api.runtime.rule.FactHandle;
38 import org.onap.policy.appclcm.LCMRequest;
39 import org.onap.policy.appclcm.LCMRequestWrapper;
40 import org.onap.policy.appclcm.LCMResponse;
41 import org.onap.policy.appclcm.LCMResponseWrapper;
42 import org.onap.policy.controlloop.ControlLoopEventStatus;
43 import org.onap.policy.controlloop.ControlLoopNotificationType;
44 import org.onap.policy.controlloop.VirtualControlLoopEvent;
45 import org.onap.policy.controlloop.VirtualControlLoopNotification;
46 import org.onap.policy.controlloop.policy.ControlLoopPolicy;
47 import org.onap.policy.drools.event.comm.Topic.CommInfrastructure;
48 import org.onap.policy.drools.event.comm.TopicEndpoint;
49 import org.onap.policy.drools.event.comm.TopicListener;
50 import org.onap.policy.drools.event.comm.TopicSink;
51 import org.onap.policy.drools.http.server.HttpServletServer;
52 import org.onap.policy.drools.properties.PolicyProperties;
53 import org.onap.policy.drools.protocol.coders.EventProtocolCoder;
54 import org.onap.policy.drools.protocol.coders.JsonProtocolFilter;
55 import org.onap.policy.drools.system.PolicyEngine;
56 import org.slf4j.Logger;
57 import org.slf4j.LoggerFactory;
59 public class ControlLoopFailureTest implements TopicListener {
61 private static final Logger logger = LoggerFactory.getLogger(VCPEControlLoopTest.class);
63 private static List<? extends TopicSink> noopTopics;
65 private static KieSession kieSession;
66 private static Util.Pair<ControlLoopPolicy, String> pair;
67 private UUID requestId;
68 private UUID requestId2;
69 private UUID requestId3;
70 private int eventCount;
73 /* Set environment properties */
80 public static void setUpSimulator() {
81 PolicyEngine.manager.configure(new Properties());
82 assertTrue(PolicyEngine.manager.start());
83 Properties noopSinkProperties = new Properties();
84 noopSinkProperties.put(PolicyProperties.PROPERTY_NOOP_SINK_TOPICS, "APPC-LCM-READ,POLICY-CL-MGT");
85 noopSinkProperties.put("noop.sink.topics.APPC-LCM-READ.events", "org.onap.policy.appclcm.LCMRequestWrapper");
86 noopSinkProperties.put("noop.sink.topics.APPC-LCM-READ.events.custom.gson", "org.onap.policy.appclcm.util.Serialization,gson");
87 noopSinkProperties.put("noop.sink.topics.POLICY-CL-MGT.events", "org.onap.policy.controlloop.VirtualControlLoopNotification");
88 noopSinkProperties.put("noop.sink.topics.POLICY-CL-MGT.events.custom.gson", "org.onap.policy.controlloop.util.Serialization,gsonPretty");
89 noopTopics = TopicEndpoint.manager.addTopicSinks(noopSinkProperties);
91 EventProtocolCoder.manager.addEncoder("junit.groupId", "junit.artifactId", "POLICY-CL-MGT", "org.onap.policy.controlloop.VirtualControlLoopNotification", new JsonProtocolFilter(), null, null, 1111);
92 EventProtocolCoder.manager.addEncoder("junit.groupId", "junit.artifactId", "APPC-LCM-READ", "org.onap.policy.appclcm.LCMRequestWrapper", new JsonProtocolFilter(), null, null, 1111);
96 } catch (Exception e) {
101 * Start the kie session
104 kieSession = startSession("../archetype-cl-amsterdam/src/main/resources/archetype-resources/src/main/resources/__closedLoopControlName__.drl",
105 "src/test/resources/yaml/policy_ControlLoop_vCPE.yaml",
106 "service=ServiceDemo;resource=Res1Demo;type=operational",
108 "org.onap.closed_loop.ServiceDemo:VNFS:1.0.0");
109 } catch (IOException e) {
111 logger.debug("Could not create kieSession");
112 fail("Could not create kieSession");
117 public static void tearDownSimulator() {
119 * Gracefully shut down the kie session
121 kieSession.dispose();
123 HttpServletServer.factory.destroy();
124 PolicyEngine.manager.shutdown();
125 TopicEndpoint.manager.shutdown();
126 PolicyEngine.manager.stop();
130 * This test case tests the scenario where 3 events occur
131 * and 2 of the requests refer to the same target entity
132 * while the 3rd is for another entity. The expected result
133 * is that the event with the duplicate target entity will have
134 * a final success result for one of the events, and a rejected
135 * message for the one that was unable to obtain the lock. The
136 * event that is referring to a different target entity should
137 * be able to obtain a lock since it is a different target. After
138 * processing of all events there should only be the params object
142 public void targetLockedTest() {
145 * Allows the PolicyEngine to callback to this object to
146 * notify that there is an event ready to be pulled
149 for (TopicSink sink : noopTopics) {
150 assertTrue(sink.start());
155 * Create a unique requestId
157 requestId = UUID.randomUUID();
160 * This will be a unique request for another target entity
162 requestId2 = UUID.randomUUID();
165 * This will be a request duplicating the target entity
166 * of the first request
168 requestId3 = UUID.randomUUID();
171 * Simulate an onset event the policy engine will
172 * receive from DCAE to kick off processing through
175 sendEvent(pair.a, requestId, ControlLoopEventStatus.ONSET, "vnf01");
178 * Send a second event requesting an action for a different target entity
180 sendEvent(pair.a, requestId2, ControlLoopEventStatus.ONSET, "vnf02");
183 * Send a second event for a different target to ensure there
184 * are no problems with obtaining a lock for a different
186 kieSession.fireUntilHalt();
189 * The only fact in memory should be Params
191 assertEquals(1, kieSession.getFactCount());
194 * Print what's left in memory
196 dumpFacts(kieSession);
201 * This method will start a kie session and instantiate
204 * @param droolsTemplate
207 * the yaml file containing the policies
212 * @param policyVersion
213 * version of the policy
214 * @return the kieSession to be used to insert facts
215 * @throws IOException
217 private static KieSession startSession(String droolsTemplate,
221 String policyVersion) throws IOException {
224 * Load policies from yaml
226 pair = Util.loadYaml(yamlFile);
228 assertNotNull(pair.a);
229 assertNotNull(pair.a.getControlLoop());
230 assertNotNull(pair.a.getControlLoop().getControlLoopName());
231 assertTrue(pair.a.getControlLoop().getControlLoopName().length() > 0);
234 * Construct a kie session
236 final KieSession kieSession = Util.buildContainer(droolsTemplate,
237 pair.a.getControlLoop().getControlLoopName(),
241 URLEncoder.encode(pair.b, "UTF-8"));
244 * Retrieve the Policy Engine
247 logger.debug("============");
248 logger.debug(URLEncoder.encode(pair.b, "UTF-8"));
249 logger.debug("============");
256 * @see org.onap.policy.drools.PolicyEngineListener#newEventNotification(java.lang.String)
258 public void onTopicEvent(CommInfrastructure commType, String topic, String event) {
260 * Pull the object that was sent out to DMAAP and make
261 * sure it is a ControlLoopNoticiation of type active
264 if ("POLICY-CL-MGT".equals(topic)) {
265 obj = org.onap.policy.controlloop.util.Serialization.gsonJunit.fromJson(event, org.onap.policy.controlloop.VirtualControlLoopNotification.class);
267 else if ("APPC-LCM-READ".equals(topic))
268 obj = org.onap.policy.appclcm.util.Serialization.gsonJunit.fromJson(event, org.onap.policy.appclcm.LCMRequestWrapper.class);
270 if (obj instanceof VirtualControlLoopNotification) {
271 VirtualControlLoopNotification notification = (VirtualControlLoopNotification) obj;
272 String policyName = notification.policyName;
273 if (policyName.endsWith("EVENT")) {
274 logger.debug("Rule Fired: " + notification.policyName);
275 assertTrue(ControlLoopNotificationType.ACTIVE.equals(notification.notification));
277 else if (policyName.endsWith("GUARD_NOT_YET_QUERIED")) {
278 logger.debug("Rule Fired: " + notification.policyName);
279 assertTrue(ControlLoopNotificationType.OPERATION.equals(notification.notification));
280 assertNotNull(notification.message);
281 assertTrue(notification.message.startsWith("Sending guard query"));
283 else if (policyName.endsWith("GUARD.RESPONSE")) {
284 logger.debug("Rule Fired: " + notification.policyName);
285 assertTrue(ControlLoopNotificationType.OPERATION.equals(notification.notification));
286 assertNotNull(notification.message);
287 assertTrue(notification.message.toLowerCase().endsWith("permit"));
289 else if (policyName.endsWith("GUARD_PERMITTED")) {
290 logger.debug("Rule Fired: " + notification.policyName);
291 assertTrue(ControlLoopNotificationType.OPERATION.equals(notification.notification));
292 assertNotNull(notification.message);
293 assertTrue(notification.message.startsWith("actor=APPC"));
295 else if (policyName.endsWith("OPERATION.TIMEOUT")) {
296 logger.debug("Rule Fired: " + notification.policyName);
298 logger.debug("The operation timed out");
299 fail("Operation Timed Out");
301 else if (policyName.endsWith("APPC.LCM.RESPONSE")) {
302 logger.debug("Rule Fired: " + notification.policyName);
303 assertTrue(ControlLoopNotificationType.OPERATION_SUCCESS.equals(notification.notification));
304 assertNotNull(notification.message);
305 assertTrue(notification.message.startsWith("actor=APPC"));
306 if (requestId.equals(notification.requestID)) {
307 sendEvent(pair.a, requestId, ControlLoopEventStatus.ABATED, "vnf01");
309 else if (requestId2.equals(notification.requestID)) {
310 sendEvent(pair.a, requestId2, ControlLoopEventStatus.ABATED, "vnf02");
313 else if (policyName.endsWith("EVENT.MANAGER")) {
314 logger.debug("Rule Fired: " + notification.policyName);
315 if (requestId3.equals(notification.requestID)) {
317 * The event with the duplicate target should be rejected
319 assertTrue(ControlLoopNotificationType.REJECTED.equals(notification.notification));
322 assertTrue(ControlLoopNotificationType.FINAL_SUCCESS.equals(notification.notification));
324 if (++eventCount == 3) {
328 else if (policyName.endsWith("EVENT.MANAGER.TIMEOUT")) {
329 logger.debug("Rule Fired: " + notification.policyName);
331 logger.debug("The control loop timed out");
332 fail("Control Loop Timed Out");
335 else if (obj instanceof LCMRequestWrapper) {
337 * The request should be of type LCMRequestWrapper
338 * and the subrequestid should be 1
340 LCMRequestWrapper dmaapRequest = (LCMRequestWrapper) obj;
341 LCMRequest appcRequest = dmaapRequest.getBody();
342 assertTrue(appcRequest.getCommonHeader().getSubRequestId().equals("1"));
344 logger.debug("\n============ APPC received the request!!! ===========\n");
347 * Simulate a success response from APPC and insert
348 * the response into the working memory
350 LCMResponseWrapper dmaapResponse = new LCMResponseWrapper();
351 LCMResponse appcResponse = new LCMResponse(appcRequest);
352 appcResponse.getStatus().setCode(400);
353 appcResponse.getStatus().setMessage("AppC success");
354 dmaapResponse.setBody(appcResponse);
357 * Interrupting with a different request for the same
358 * target entity to check if lock will be denied
360 if (requestId.equals(appcResponse.getCommonHeader().getRequestId())) {
361 sendEvent(pair.a, requestId3, ControlLoopEventStatus.ONSET, "vnf01");
363 kieSession.insert(dmaapResponse);
368 * This method is used to simulate event messages from DCAE
369 * that start the control loop (onset message) or end the
370 * control loop (abatement message).
372 * @param policy the controlLoopName comes from the policy
373 * @param requestID the requestId for this event
374 * @param status could be onset or abated
375 * @param target, the target entity to take an action on
377 protected void sendEvent(ControlLoopPolicy policy, UUID requestID,
378 ControlLoopEventStatus status, String target) {
379 VirtualControlLoopEvent event = new VirtualControlLoopEvent();
380 event.closedLoopControlName = policy.getControlLoop().getControlLoopName();
381 event.requestID = requestID;
382 event.target = "generic-vnf.vnf-id";
383 event.closedLoopAlarmStart = Instant.now();
384 event.AAI = new HashMap<>();
385 event.AAI.put("generic-vnf.vnf-id", target);
386 event.closedLoopEventStatus = status;
387 kieSession.insert(event);
391 * This method will dump all the facts in the working memory.
393 * @param kieSession the session containing the facts
395 public void dumpFacts(KieSession kieSession) {
396 logger.debug("Fact Count: {}", kieSession.getFactCount());
397 for (FactHandle handle : kieSession.getFactHandles()) {
398 logger.debug("FACT: {}", handle);