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.PolicyController;
56 import org.onap.policy.drools.system.PolicyEngine;
57 import org.slf4j.Logger;
58 import org.slf4j.LoggerFactory;
60 public class ControlLoopFailureTest implements TopicListener {
62 private static final Logger logger = LoggerFactory.getLogger(VCPEControlLoopTest.class);
64 private static List<? extends TopicSink> noopTopics;
66 private static KieSession kieSession;
67 private static Util.Pair<ControlLoopPolicy, String> pair;
68 private UUID requestId;
69 private UUID requestId2;
70 private UUID requestId3;
71 private int eventCount;
74 /* Set environment properties */
81 public static void setUpSimulator() {
82 PolicyEngine.manager.configure(new Properties());
83 assertTrue(PolicyEngine.manager.start());
84 Properties noopSinkProperties = new Properties();
85 noopSinkProperties.put(PolicyProperties.PROPERTY_NOOP_SINK_TOPICS, "APPC-LCM-READ,POLICY-CL-MGT");
86 noopSinkProperties.put("noop.sink.topics.APPC-LCM-READ.events", "org.onap.policy.appclcm.LCMRequestWrapper");
87 noopSinkProperties.put("noop.sink.topics.APPC-LCM-READ.events.custom.gson", "org.onap.policy.appclcm.util.Serialization,gson");
88 noopSinkProperties.put("noop.sink.topics.POLICY-CL-MGT.events", "org.onap.policy.controlloop.VirtualControlLoopNotification");
89 noopSinkProperties.put("noop.sink.topics.POLICY-CL-MGT.events.custom.gson", "org.onap.policy.controlloop.util.Serialization,gsonPretty");
90 noopTopics = TopicEndpoint.manager.addTopicSinks(noopSinkProperties);
92 EventProtocolCoder.manager.addEncoder("junit.groupId", "junit.artifactId", "POLICY-CL-MGT", "org.onap.policy.controlloop.VirtualControlLoopNotification", new JsonProtocolFilter(), null, null, 1111);
93 EventProtocolCoder.manager.addEncoder("junit.groupId", "junit.artifactId", "APPC-LCM-READ", "org.onap.policy.appclcm.LCMRequestWrapper", new JsonProtocolFilter(), null, null, 1111);
97 } catch (Exception e) {
102 * Start the kie session
105 kieSession = startSession("../archetype-cl-amsterdam/src/main/resources/archetype-resources/src/main/resources/__closedLoopControlName__.drl",
106 "src/test/resources/yaml/policy_ControlLoop_vCPE.yaml",
107 "service=ServiceDemo;resource=Res1Demo;type=operational",
109 "org.onap.closed_loop.ServiceDemo:VNFS:1.0.0");
110 } catch (IOException e) {
112 logger.debug("Could not create kieSession");
113 fail("Could not create kieSession");
118 public static void tearDownSimulator() {
120 * Gracefully shut down the kie session
122 kieSession.dispose();
124 PolicyEngine.manager.stop();
125 HttpServletServer.factory.destroy();
126 PolicyController.factory.shutdown();
127 TopicEndpoint.manager.shutdown();
131 * This test case tests the scenario where 3 events occur
132 * and 2 of the requests refer to the same target entity
133 * while the 3rd is for another entity. The expected result
134 * is that the event with the duplicate target entity will have
135 * a final success result for one of the events, and a rejected
136 * message for the one that was unable to obtain the lock. The
137 * event that is referring to a different target entity should
138 * be able to obtain a lock since it is a different target. After
139 * processing of all events there should only be the params object
143 public void targetLockedTest() {
146 * Allows the PolicyEngine to callback to this object to
147 * notify that there is an event ready to be pulled
150 for (TopicSink sink : noopTopics) {
151 assertTrue(sink.start());
156 * Create a unique requestId
158 requestId = UUID.randomUUID();
161 * This will be a unique request for another target entity
163 requestId2 = UUID.randomUUID();
166 * This will be a request duplicating the target entity
167 * of the first request
169 requestId3 = UUID.randomUUID();
172 * Simulate an onset event the policy engine will
173 * receive from DCAE to kick off processing through
176 sendEvent(pair.a, requestId, ControlLoopEventStatus.ONSET, "vnf01");
179 * Send a second event requesting an action for a different target entity
181 sendEvent(pair.a, requestId2, ControlLoopEventStatus.ONSET, "vnf02");
184 * Send a second event for a different target to ensure there
185 * are no problems with obtaining a lock for a different
187 kieSession.fireUntilHalt();
190 * The only fact in memory should be Params
192 assertEquals(1, kieSession.getFactCount());
195 * Print what's left in memory
197 dumpFacts(kieSession);
202 * This method will start a kie session and instantiate
205 * @param droolsTemplate
208 * the yaml file containing the policies
213 * @param policyVersion
214 * version of the policy
215 * @return the kieSession to be used to insert facts
216 * @throws IOException
218 private static KieSession startSession(String droolsTemplate,
222 String policyVersion) throws IOException {
225 * Load policies from yaml
227 pair = Util.loadYaml(yamlFile);
229 assertNotNull(pair.a);
230 assertNotNull(pair.a.getControlLoop());
231 assertNotNull(pair.a.getControlLoop().getControlLoopName());
232 assertTrue(pair.a.getControlLoop().getControlLoopName().length() > 0);
235 * Construct a kie session
237 final KieSession kieSession = Util.buildContainer(droolsTemplate,
238 pair.a.getControlLoop().getControlLoopName(),
242 URLEncoder.encode(pair.b, "UTF-8"));
245 * Retrieve the Policy Engine
248 logger.debug("============");
249 logger.debug(URLEncoder.encode(pair.b, "UTF-8"));
250 logger.debug("============");
257 * @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
262 * sure it is a ControlLoopNoticiation of type active
265 if ("POLICY-CL-MGT".equals(topic)) {
266 obj = org.onap.policy.controlloop.util.Serialization.gsonJunit.fromJson(event, 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, org.onap.policy.appclcm.LCMRequestWrapper.class);
271 if (obj instanceof VirtualControlLoopNotification) {
272 VirtualControlLoopNotification notification = (VirtualControlLoopNotification) obj;
273 String policyName = notification.policyName;
274 if (policyName.endsWith("EVENT")) {
275 logger.debug("Rule Fired: " + notification.policyName);
276 assertTrue(ControlLoopNotificationType.ACTIVE.equals(notification.notification));
278 else if (policyName.endsWith("GUARD_NOT_YET_QUERIED")) {
279 logger.debug("Rule Fired: " + notification.policyName);
280 assertTrue(ControlLoopNotificationType.OPERATION.equals(notification.notification));
281 assertNotNull(notification.message);
282 assertTrue(notification.message.startsWith("Sending guard query"));
284 else if (policyName.endsWith("GUARD.RESPONSE")) {
285 logger.debug("Rule Fired: " + notification.policyName);
286 assertTrue(ControlLoopNotificationType.OPERATION.equals(notification.notification));
287 assertNotNull(notification.message);
288 assertTrue(notification.message.toLowerCase().endsWith("permit"));
290 else if (policyName.endsWith("GUARD_PERMITTED")) {
291 logger.debug("Rule Fired: " + notification.policyName);
292 assertTrue(ControlLoopNotificationType.OPERATION.equals(notification.notification));
293 assertNotNull(notification.message);
294 assertTrue(notification.message.startsWith("actor=APPC"));
296 else if (policyName.endsWith("OPERATION.TIMEOUT")) {
297 logger.debug("Rule Fired: " + notification.policyName);
299 logger.debug("The operation timed out");
300 fail("Operation Timed Out");
302 else if (policyName.endsWith("APPC.LCM.RESPONSE")) {
303 logger.debug("Rule Fired: " + notification.policyName);
304 assertTrue(ControlLoopNotificationType.OPERATION_SUCCESS.equals(notification.notification));
305 assertNotNull(notification.message);
306 assertTrue(notification.message.startsWith("actor=APPC"));
307 if (requestId.equals(notification.requestID)) {
308 sendEvent(pair.a, requestId, ControlLoopEventStatus.ABATED, "vnf01");
310 else if (requestId2.equals(notification.requestID)) {
311 sendEvent(pair.a, requestId2, ControlLoopEventStatus.ABATED, "vnf02");
314 else if (policyName.endsWith("EVENT.MANAGER")) {
315 logger.debug("Rule Fired: " + notification.policyName);
316 if (requestId3.equals(notification.requestID)) {
318 * The event with the duplicate target should be rejected
320 assertTrue(ControlLoopNotificationType.REJECTED.equals(notification.notification));
323 assertTrue(ControlLoopNotificationType.FINAL_SUCCESS.equals(notification.notification));
325 if (++eventCount == 3) {
329 else if (policyName.endsWith("EVENT.MANAGER.TIMEOUT")) {
330 logger.debug("Rule Fired: " + notification.policyName);
332 logger.debug("The control loop timed out");
333 fail("Control Loop Timed Out");
336 else if (obj instanceof LCMRequestWrapper) {
338 * The request should be of type LCMRequestWrapper
339 * and the subrequestid should be 1
341 LCMRequestWrapper dmaapRequest = (LCMRequestWrapper) obj;
342 LCMRequest appcRequest = dmaapRequest.getBody();
343 assertTrue(appcRequest.getCommonHeader().getSubRequestId().equals("1"));
345 logger.debug("\n============ APPC received the request!!! ===========\n");
348 * Simulate a success response from APPC and insert
349 * the response into the working memory
351 LCMResponseWrapper dmaapResponse = new LCMResponseWrapper();
352 LCMResponse appcResponse = new LCMResponse(appcRequest);
353 appcResponse.getStatus().setCode(400);
354 appcResponse.getStatus().setMessage("AppC success");
355 dmaapResponse.setBody(appcResponse);
358 * Interrupting with a different request for the same
359 * target entity to check if lock will be denied
361 if (requestId.equals(appcResponse.getCommonHeader().getRequestId())) {
362 sendEvent(pair.a, requestId3, ControlLoopEventStatus.ONSET, "vnf01");
364 kieSession.insert(dmaapResponse);
369 * This method is used to simulate event messages from DCAE
370 * that start the control loop (onset message) or end the
371 * control loop (abatement message).
373 * @param policy the controlLoopName comes from the policy
374 * @param requestID the requestId for this event
375 * @param status could be onset or abated
376 * @param target, the target entity to take an action on
378 protected void sendEvent(ControlLoopPolicy policy, UUID requestID,
379 ControlLoopEventStatus status, String target) {
380 VirtualControlLoopEvent event = new VirtualControlLoopEvent();
381 event.closedLoopControlName = policy.getControlLoop().getControlLoopName();
382 event.requestID = requestID;
383 event.target = "generic-vnf.vnf-id";
384 event.closedLoopAlarmStart = Instant.now();
385 event.AAI = new HashMap<>();
386 event.AAI.put("generic-vnf.vnf-id", target);
387 event.closedLoopEventStatus = status;
388 kieSession.insert(event);
392 * This method will dump all the facts in the working memory.
394 * @param kieSession the session containing the facts
396 public void dumpFacts(KieSession kieSession) {
397 logger.debug("Fact Count: {}", kieSession.getFactCount());
398 for (FactHandle handle : kieSession.getFactHandles()) {
399 logger.debug("FACT: {}", handle);