2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 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.clc;
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.io.UnsupportedEncodingException;
30 import java.net.URLEncoder;
31 import java.time.Instant;
32 import java.util.HashMap;
33 import java.util.LinkedList;
34 import java.util.List;
35 import java.util.Properties;
36 import java.util.UUID;
37 import org.junit.AfterClass;
38 import org.junit.BeforeClass;
39 import org.junit.Test;
40 import org.kie.api.runtime.KieSession;
41 import org.onap.policy.common.endpoints.event.comm.TopicEndpoint;
42 import org.onap.policy.common.endpoints.event.comm.TopicSink;
43 import org.onap.policy.common.endpoints.http.server.HttpServletServer;
44 import org.onap.policy.common.endpoints.properties.PolicyEndPointProperties;
45 import org.onap.policy.controlloop.ControlLoopEventStatus;
46 import org.onap.policy.controlloop.VirtualControlLoopEvent;
47 import org.onap.policy.controlloop.eventmanager.ControlLoopEventManager;
48 import org.onap.policy.controlloop.policy.ControlLoopPolicy;
49 import org.onap.policy.drools.protocol.coders.EventProtocolCoder;
50 import org.onap.policy.drools.protocol.coders.JsonProtocolFilter;
51 import org.onap.policy.drools.system.PolicyController;
52 import org.onap.policy.drools.system.PolicyEngine;
53 import org.onap.policy.drools.utils.logging.LoggerUtil;
54 import org.onap.policy.template.demo.clc.Util.Pair;
55 import org.slf4j.Logger;
56 import org.slf4j.LoggerFactory;
59 * Verifies that event objects are cleaned up when rules are updated. This loads
60 * <b>two</b> copies of the rule set into a single policy to ensure that the two copies
61 * interact appropriately with each other's event objects.
63 public class ControlLoopEventCleanupTest {
64 private static final Logger logger = LoggerFactory.getLogger(ControlLoopEventCleanupTest.class);
67 * Number of objects per control loop, including the Params object.
69 private static int CL_OBJECTS = 7;
71 private static final String YAML = "src/test/resources/yaml/policy_ControlLoop_EventCleanup-test.yaml";
74 * YAML to be used when the first rule set is updated.
76 private static final String YAML2 = "src/test/resources/yaml/policy_ControlLoop_EventCleanup-test2.yaml";
78 private static final String POLICY_VERSION = "v2.0";
80 private static final String POLICY_NAME = "CL_CleanupTest";
82 private static final String POLICY_SCOPE = "type=operational";
84 private static final String CONTROL_LOOP_NAME = "ControlLoop-Event-Cleanup-Test";
86 private static final String DROOLS_TEMPLATE = "src/main/resources/__closedLoopControlName__.drl";
88 // values specific to the second copy of the rules
90 private static final String YAML_B = "src/test/resources/yaml/policy_ControlLoop_EventCleanup-test-B.yaml";
91 private static final String POLICY_NAME_B = "CL_CleanupTest_B";
92 private static final String CONTROL_LOOP_NAME_B = "ControlLoop-Event-Cleanup-Test-B";
94 private static final String GUARD_DISABLED = "guard.disabled";
96 private static String saveGuardFlag;
98 private static KieSession kieSession;
99 private static Util.RuleSpec[] specifications;
102 * Setup the simulator.
105 public static void setUpSimulator() {
106 LoggerUtil.setLevel(LoggerUtil.ROOT_LOGGER, "INFO");
108 saveGuardFlag = PolicyEngine.manager.getEnvironmentProperty(GUARD_DISABLED);
109 PolicyEngine.manager.getEnvironment().setProperty(GUARD_DISABLED, "true");
113 PolicyEngine.manager.configure(new Properties());
114 assertTrue(PolicyEngine.manager.start());
115 Properties noopSinkProperties = new Properties();
116 noopSinkProperties.put(PolicyEndPointProperties.PROPERTY_NOOP_SINK_TOPICS, "APPC-CL,POLICY-CL-MGT");
117 noopSinkProperties.put("noop.sink.topics.APPC-CL.events", "org.onap.policy.appc.Response");
118 noopSinkProperties.put("noop.sink.topics.APPC-CL.events.custom.gson",
119 "org.onap.policy.appc.util.Serialization,gsonPretty");
120 noopSinkProperties.put("noop.sink.topics.POLICY-CL-MGT.events",
121 "org.onap.policy.controlloop.VirtualControlLoopNotification");
122 noopSinkProperties.put("noop.sink.topics.POLICY-CL-MGT.events.custom.gson",
123 "org.onap.policy.controlloop.util.Serialization,gsonPretty");
124 final List<TopicSink> noopTopics = TopicEndpoint.manager.addTopicSinks(noopSinkProperties);
126 EventProtocolCoder.manager.addEncoder("junit.groupId", "junit.artifactId", "POLICY-CL-MGT",
127 "org.onap.policy.controlloop.VirtualControlLoopNotification", new JsonProtocolFilter(), null,
129 EventProtocolCoder.manager.addEncoder("junit.groupId", "junit.artifactId", "APPC-CL",
130 "org.onap.policy.appc.Request", new JsonProtocolFilter(), null, null, 1111);
135 } catch (Exception e) {
136 logger.error("Could not create simulator", e);
137 fail("Could not create simulator");
140 for (TopicSink sink : noopTopics) {
141 assertTrue(sink.start());
145 specifications = new Util.RuleSpec[2];
147 specifications[0] = new Util.RuleSpec(DROOLS_TEMPLATE, CONTROL_LOOP_NAME, POLICY_SCOPE, POLICY_NAME,
148 POLICY_VERSION, loadYaml(YAML));
150 specifications[1] = new Util.RuleSpec(DROOLS_TEMPLATE, CONTROL_LOOP_NAME_B, POLICY_SCOPE, POLICY_NAME_B,
151 POLICY_VERSION, loadYaml(YAML_B));
153 kieSession = Util.buildContainer(POLICY_VERSION, specifications);
155 } catch (IOException e) {
156 logger.error("Could not create kieSession", e);
157 fail("Could not create kieSession");
165 public static void tearDown() {
166 kieSession.dispose();
168 PolicyEngine.manager.stop();
169 HttpServletServer.factory.destroy();
170 PolicyController.factory.shutdown();
171 TopicEndpoint.manager.shutdown();
173 if (saveGuardFlag == null) {
174 PolicyEngine.manager.getEnvironment().remove(GUARD_DISABLED);
177 PolicyEngine.manager.getEnvironment().setProperty(GUARD_DISABLED, saveGuardFlag);
182 public void test() throws IOException {
185 * Let rules create Params objects.
187 kieSession.fireAllRules();
189 injectEvent(CONTROL_LOOP_NAME);
190 injectEvent(CONTROL_LOOP_NAME_B);
192 kieSession.fireAllRules();
193 List<Object> facts = getSessionObjects();
195 // should have events for both control loops
196 assertEquals(2 * CL_OBJECTS, facts.size());
197 assertTrue(hasEvent(facts, CONTROL_LOOP_NAME));
198 assertTrue(hasEvent(facts, CONTROL_LOOP_NAME_B));
200 logger.info("UPDATING VERSION TO v3.0");
201 updatePolicy(YAML2, "v3.0");
204 * Let rules update Params objects. The Params for the first set of rules should
205 * now be deleted and replaced with a new one, while the Params for the second set
206 * should be unchanged.
208 kieSession.fireAllRules();
209 facts = getSessionObjects();
211 // should only have event for second control loop + 1 Params for first control loop
212 assertEquals(CL_OBJECTS + 1, facts.size());
213 assertTrue(hasEvent(facts, CONTROL_LOOP_NAME_B));
215 // add event for first control loop again
216 injectEvent(CONTROL_LOOP_NAME);
217 kieSession.fireAllRules();
219 logger.info("UPDATING VERSION TO v4.0");
220 updatePolicy(YAML, "v4.0");
223 * Let rules update Params objects. The Params for the first set of rules should
224 * now be deleted and replaced with a new one, while the Params for the second set
225 * should be unchanged.
227 kieSession.fireAllRules();
228 facts = getSessionObjects();
230 // should only have event for second control loop + 1 Params for first control loop
231 assertEquals(CL_OBJECTS + 1, facts.size());
232 assertTrue(hasEvent(facts, CONTROL_LOOP_NAME_B));
234 // add event for first control loop again
235 injectEvent(CONTROL_LOOP_NAME);
236 kieSession.fireAllRules();
238 logger.info("UPDATING VERSION TO v4.0 (i.e., unchanged)");
239 updatePolicy(YAML, "v4.0");
242 * Let rules update Params objects. As the version (and YAML) are unchanged for
243 * either rule set, both Params objects should be unchanged.
245 kieSession.fireAllRules();
246 facts = getSessionObjects();
248 // should have events for both control loops
249 assertEquals(2 * CL_OBJECTS, facts.size());
250 assertTrue(hasEvent(facts, CONTROL_LOOP_NAME));
251 assertTrue(hasEvent(facts, CONTROL_LOOP_NAME_B));
254 * Now we'll delete the first rule set. That won't actually have any immediate
255 * effect, so then we'll update the second rule set, which should trigger a
258 Util.RuleSpec[] specs = new Util.RuleSpec[1];
259 specs[0] = specifications[1];
261 logger.info("UPDATING VERSION TO v5.0 - DELETED RULE SET");
262 Util.updateContainer("v5.0", specs);
264 specs[0] = new Util.RuleSpec(DROOLS_TEMPLATE, CONTROL_LOOP_NAME_B, POLICY_SCOPE, POLICY_NAME_B, POLICY_VERSION,
267 logger.info("UPDATING VERSION TO v6.0 - UPDATED SECOND RULE SET");
268 Util.updateContainer("v6.0", specs);
270 kieSession.fireAllRules();
271 facts = getSessionObjects();
273 // only 1 Params should remain, for second rule set, but events should be gone
274 assertEquals(1, facts.size());
275 assertTrue(facts.stream().anyMatch(obj -> obj.toString().startsWith("Params( ")));
279 * Updates the policy, changing the YAML associated with the first rule set.
281 * @param yamlFile name of the YAML file
282 * @param policyVersion policy version
283 * @throws IOException if an error occurs
285 private static void updatePolicy(String yamlFile, String policyVersion) throws IOException {
287 specifications[0] = new Util.RuleSpec(DROOLS_TEMPLATE, CONTROL_LOOP_NAME, POLICY_SCOPE, POLICY_NAME,
288 policyVersion, loadYaml(yamlFile));
291 * Update the policy within the container.
293 Util.updateContainer(policyVersion, specifications);
297 * Loads a YAML file and URL-encodes it.
299 * @param yamlFile name of the YAML file
300 * @return the contents of the specified file, URL-encoded
301 * @throws UnsupportedEncodingException if an error occurs
303 private static String loadYaml(String yamlFile) throws UnsupportedEncodingException {
304 Pair<ControlLoopPolicy, String> pair = Util.loadYaml(yamlFile);
306 assertNotNull(pair.first);
307 assertNotNull(pair.first.getControlLoop());
308 assertNotNull(pair.first.getControlLoop().getControlLoopName());
309 assertTrue(pair.first.getControlLoop().getControlLoopName().length() > 0);
311 return URLEncoder.encode(pair.second, "UTF-8");
315 * Gets the session objects.
317 * @return the session objects
319 private static List<Object> getSessionObjects() {
320 // sort the objects so we know the order
321 LinkedList<Object> lst = new LinkedList<>(kieSession.getObjects());
322 lst.sort((left, right) -> left.toString().compareTo(right.toString()));
324 lst.forEach(obj -> logger.info("obj={}", obj));
330 * Injects an ONSET event into the rule engine.
332 * @param controlLoopName the control loop name
334 private void injectEvent(String controlLoopName) {
335 VirtualControlLoopEvent event = new VirtualControlLoopEvent();
337 event.setClosedLoopControlName(controlLoopName);
339 UUID reqid = UUID.randomUUID();
340 event.setRequestId(reqid);
342 event.setTarget("generic-vnf.vnf-id");
343 event.setClosedLoopAlarmStart(Instant.now());
344 event.setAai(new HashMap<>());
345 event.getAai().put("generic-vnf.vnf-id", "vnf-" + reqid.toString());
346 event.getAai().put(ControlLoopEventManager.GENERIC_VNF_IS_CLOSED_LOOP_DISABLED, "false");
347 event.setClosedLoopEventStatus(ControlLoopEventStatus.ONSET);
349 kieSession.insert(event);
353 * Determines if the facts contain an event for the given control loop.
355 * @param facts session facts to be checked
356 * @param controlLoopName name of the control loop of interest
357 * @return {@code true} if the facts contain an event for the given control loop,
358 * {@code false} otherwise
360 private boolean hasEvent(List<Object> facts, String controlLoopName) {
361 return (facts.stream().anyMatch(obj -> obj instanceof VirtualControlLoopEvent
362 && controlLoopName.equals(((VirtualControlLoopEvent) obj).getClosedLoopControlName())));