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/*-
* ============LICENSE_START=======================================================
* demo
* ================================================================================
* Copyright (C) 2017-2018 Intel Corp. All rights reserved.
* Modifications Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ============LICENSE_END=========================================================
*/
package org.onap.policy.template.demo;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import java.io.IOException;
import java.net.URLEncoder;
import java.time.Instant;
import java.util.HashMap;
import java.util.List;
import java.util.Properties;
import java.util.UUID;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;
import org.kie.api.runtime.KieSession;
import org.kie.api.runtime.rule.FactHandle;
import org.onap.policy.common.endpoints.event.comm.Topic.CommInfrastructure;
import org.onap.policy.common.endpoints.event.comm.TopicEndpoint;
import org.onap.policy.common.endpoints.event.comm.TopicListener;
import org.onap.policy.common.endpoints.event.comm.TopicSink;
import org.onap.policy.common.endpoints.http.server.HttpServletServer;
import org.onap.policy.common.endpoints.properties.PolicyEndPointProperties;
import org.onap.policy.controlloop.ControlLoopEventStatus;
import org.onap.policy.controlloop.ControlLoopNotificationType;
import org.onap.policy.controlloop.ControlLoopTargetType;
import org.onap.policy.controlloop.VirtualControlLoopEvent;
import org.onap.policy.controlloop.VirtualControlLoopNotification;
import org.onap.policy.controlloop.policy.ControlLoopPolicy;
import org.onap.policy.drools.protocol.coders.EventProtocolCoder;
import org.onap.policy.drools.protocol.coders.EventProtocolParams;
import org.onap.policy.drools.protocol.coders.JsonProtocolFilter;
import org.onap.policy.drools.system.PolicyController;
import org.onap.policy.drools.system.PolicyEngine;
import org.onap.policy.drools.utils.logging.LoggerUtil;
import org.onap.policy.vfc.VFCRequest;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class VfcControlLoopTest implements TopicListener {
private static final Logger logger = LoggerFactory.getLogger(VfcControlLoopTest.class);
private static List<? extends TopicSink> noopTopics;
private static KieSession kieSession;
private static SupportUtil.Pair<ControlLoopPolicy, String> pair;
private UUID requestId;
static {
/* Set environment properties */
SupportUtil.setAaiProps();
SupportUtil.setVfcProps();
SupportUtil.setGuardProps();
SupportUtil.setPuProp();
LoggerUtil.setLevel(LoggerUtil.ROOT_LOGGER, "INFO");
}
/**
* Setup the simulator.
*/
@BeforeClass
public static void setUpSimulator() {
PolicyEngine.manager.configure(new Properties());
assertTrue(PolicyEngine.manager.start());
Properties noopSinkProperties = new Properties();
noopSinkProperties.put(PolicyEndPointProperties.PROPERTY_NOOP_SINK_TOPICS, "POLICY-CL-MGT");
noopSinkProperties.put("noop.sink.topics.POLICY-CL-MGT.events",
"org.onap.policy.controlloop.VirtualControlLoopNotification");
noopSinkProperties.put("noop.sink.topics.POLICY-CL-MGT.events.custom.gson",
"org.onap.policy.controlloop.util.Serialization,gsonPretty");
noopTopics = TopicEndpoint.manager.addTopicSinks(noopSinkProperties);
EventProtocolCoder.manager.addEncoder(EventProtocolParams.builder()
.groupId("junit.groupId")
.artifactId("junit.artifactId")
.topic("POLICY-CL-MGT")
.eventClass("org.onap.policy.controlloop.VirtualControlLoopNotification")
.protocolFilter(new JsonProtocolFilter())
.customGsonCoder(null)
.customJacksonCoder(null)
.modelClassLoaderHash(1111));
try {
SupportUtil.buildAaiSim();
SupportUtil.buildVfcSim();
SupportUtil.buildGuardSim();
} catch (Exception e) {
fail(e.getMessage());
}
/*
*
* Start the kie session
*/
try {
kieSession = startSession(
"../archetype-cl-amsterdam/src/main/resources/archetype-resources/"
+ "src/main/resources/__closedLoopControlName__.drl",
"src/test/resources/yaml/policy_ControlLoop_VFC.yaml", "type=operational", "CL_VoLTE", "v2.0");
} catch (IOException e) {
e.printStackTrace();
logger.debug("Could not create kieSession");
fail("Could not create kieSession");
}
}
/**
* Tear down the simulator.
*/
@AfterClass
public static void tearDownSimulator() {
/*
* Gracefully shut down the kie session
*/
kieSession.dispose();
PolicyEngine.manager.stop();
HttpServletServer.factory.destroy();
PolicyController.factory.shutdown();
TopicEndpoint.manager.shutdown();
}
@Test
public void successTest() throws IOException {
/*
* Allows the PolicyEngine to callback to this object to notify that there is an event ready
* to be pulled from the queue
*/
for (TopicSink sink : noopTopics) {
assertTrue(sink.start());
sink.register(this);
}
/*
* Create a unique requestId
*/
requestId = UUID.randomUUID();
/*
* Simulate an onset event the policy engine will receive from DCAE to kick off processing
* through the rules
*/
sendEvent(pair.first, requestId, ControlLoopEventStatus.ONSET);
kieSession.fireUntilHalt();
// allow object clean-up
kieSession.fireAllRules();
/*
* The only fact in memory should be Params
*/
assertEquals(1, kieSession.getFactCount());
/*
* Print what's left in memory
*/
dumpFacts(kieSession);
}
@Test
public void nullRequestTest() throws IOException {
/*
* Allows the PolicyEngine to callback to this object to notify that there is an event ready
* to be pulled from the queue
*/
for (TopicSink sink : noopTopics) {
assertTrue(sink.start());
sink.register(this);
}
/*
* Create a unique requestId
*/
requestId = UUID.randomUUID();
/*
* Simulate an onset event the policy engine will receive from DCAE to kick off processing
* through the rules
*/
VirtualControlLoopEvent event = new VirtualControlLoopEvent();
event.setClosedLoopControlName(pair.first.getControlLoop().getControlLoopName());
event.setRequestId(UUID.randomUUID());
event.setClosedLoopEventClient("tca.instance00009");
event.setTargetType(ControlLoopTargetType.VM);
event.setTarget("vserver.vserver-name");
event.setFrom("DCAE");
event.setClosedLoopAlarmStart(Instant.now());
event.setAai(new HashMap<String, String>());
event.getAai().put("vserver.vserver-name", "nullRequest");
event.setClosedLoopEventStatus(ControlLoopEventStatus.ONSET);
kieSession.insert(event);
kieSession.fireUntilHalt();
// allow object clean-up
kieSession.fireAllRules();
/*
* The only fact in memory should be Params
*/
assertEquals(1, kieSession.getFactCount());
/*
* Print what's left in memory
*/
dumpFacts(kieSession);
}
/**
* This method will start a kie session and instantiate the Policy Engine.
*
* @param droolsTemplate the DRL rules file
* @param yamlFile the yaml file containing the policies
* @param policyScope scope for policy
* @param policyName name of the policy
* @param policyVersion version of the policy
* @return the kieSession to be used to insert facts
* @throws IOException IO Exception
*/
private static KieSession startSession(String droolsTemplate, String yamlFile, String policyScope,
String policyName, String policyVersion) throws IOException {
/*
* Load policies from yaml
*/
pair = SupportUtil.loadYaml(yamlFile);
assertNotNull(pair);
assertNotNull(pair.first);
assertNotNull(pair.first.getControlLoop());
assertNotNull(pair.first.getControlLoop().getControlLoopName());
assertTrue(pair.first.getControlLoop().getControlLoopName().length() > 0);
/*
* Construct a kie session
*/
final KieSession kieSession = SupportUtil.buildContainer(droolsTemplate,
pair.first.getControlLoop().getControlLoopName(),
policyScope, policyName, policyVersion, URLEncoder.encode(pair.second, "UTF-8"));
/*
* Retrieve the Policy Engine
*/
logger.debug("============");
logger.debug(URLEncoder.encode(pair.second, "UTF-8"));
logger.debug("============");
return kieSession;
}
/*
* (non-Javadoc)
*
* @see org.onap.policy.drools.PolicyEngineListener#newEventNotification(java.lang.String)
*/
@Override
public void onTopicEvent(CommInfrastructure commType, String topic, String event) {
/*
* Pull the object that was sent out to DMAAP and make sure it is a ControlLoopNoticiation
* of type active
*/
Object obj = null;
if ("POLICY-CL-MGT".equals(topic)) {
obj = org.onap.policy.controlloop.util.Serialization.gsonJunit.fromJson(event,
org.onap.policy.controlloop.VirtualControlLoopNotification.class);
}
assertNotNull(obj);
if (obj instanceof VirtualControlLoopNotification) {
VirtualControlLoopNotification notification = (VirtualControlLoopNotification) obj;
String policyName = notification.getPolicyName();
if (policyName.endsWith("EVENT")) {
logger.debug("Rule Fired: " + notification.getPolicyName());
assertTrue(ControlLoopNotificationType.ACTIVE.equals(notification.getNotification()));
} else if (policyName.endsWith("GUARD_NOT_YET_QUERIED")) {
logger.debug("Rule Fired: " + notification.getPolicyName());
assertTrue(ControlLoopNotificationType.OPERATION.equals(notification.getNotification()));
assertNotNull(notification.getMessage());
assertTrue(notification.getMessage().startsWith("Sending guard query"));
} else if (policyName.endsWith("GUARD.RESPONSE")) {
logger.debug("Rule Fired: " + notification.getPolicyName());
assertTrue(ControlLoopNotificationType.OPERATION.equals(notification.getNotification()));
assertNotNull(notification.getMessage());
assertTrue(notification.getMessage().toLowerCase().endsWith("permit"));
} else if (policyName.endsWith("GUARD_PERMITTED")) {
logger.debug("Rule Fired: " + notification.getPolicyName());
assertTrue(ControlLoopNotificationType.OPERATION.equals(notification.getNotification()));
assertNotNull(notification.getMessage());
assertTrue(notification.getMessage().startsWith("actor=VFC"));
} else if (policyName.endsWith("OPERATION.TIMEOUT")) {
logger.debug("Rule Fired: " + notification.getPolicyName());
kieSession.halt();
logger.debug("The operation timed out");
fail("Operation Timed Out");
} else if (policyName.endsWith("VFC.RESPONSE")) {
logger.debug("Rule Fired: " + notification.getPolicyName());
assertTrue(ControlLoopNotificationType.OPERATION_SUCCESS.equals(notification.getNotification()));
assertNotNull(notification.getMessage());
assertTrue(notification.getMessage().startsWith("actor=VFC"));
} else if (policyName.endsWith("EVENT.MANAGER")) {
logger.debug("Rule Fired: " + notification.getPolicyName());
if ("nullRequest".equals(notification.getAai().get("vserver.vserver-name"))) {
assertEquals(ControlLoopNotificationType.FINAL_FAILURE, notification.getNotification());
} else {
assertEquals(ControlLoopNotificationType.FINAL_SUCCESS, notification.getNotification());
}
kieSession.halt();
} else if (policyName.endsWith("EVENT.MANAGER.TIMEOUT")) {
logger.debug("Rule Fired: " + notification.getPolicyName());
kieSession.halt();
logger.debug("The control loop timed out");
fail("Control Loop Timed Out");
}
} else if (obj instanceof VFCRequest) {
logger.debug("\n============ VFC received the request!!! ===========\n");
}
}
/**
* This method is used to simulate event messages from DCAE that start the control loop (onset
* message) or end the control loop (abatement message).
*
* @param policy the controlLoopName comes from the policy
* @param requestId the requestId for this event
* @param status could be onset or abated
*/
protected void sendEvent(ControlLoopPolicy policy, UUID requestId, ControlLoopEventStatus status) {
VirtualControlLoopEvent event = new VirtualControlLoopEvent();
event.setClosedLoopControlName(policy.getControlLoop().getControlLoopName());
event.setRequestId(UUID.randomUUID());
event.setClosedLoopEventClient("tca.instance00009");
event.setTargetType(ControlLoopTargetType.VM);
event.setTarget("vserver.vserver-name");
event.setFrom("DCAE");
event.setClosedLoopAlarmStart(Instant.now());
event.setAai(new HashMap<String, String>());
event.getAai().put("vserver.vserver-name", "vserver-name-16102016-aai3255-data-11-1");
event.getAai().put("vserver.vserver-id", "vserver-id-16102016-aai3255-data-11-1");
event.getAai().put("generic-vnf.vnf-id", "vnf-id-16102016-aai3255-data-11-1");
event.getAai().put("service-instance.service-instance-id", "service-instance-id-16102016-aai3255-data-11-1");
event.getAai().put("vserver.is-closed-loop-disabled", "false");
event.getAai().put("vserver.prov-status", "ACTIVE");
event.setClosedLoopEventStatus(ControlLoopEventStatus.ONSET);
kieSession.insert(event);
}
/**
* Dumps the kie session facts.
*
* @param kieSession input session
*/
public static void dumpFacts(KieSession kieSession) {
logger.debug("Fact Count: " + kieSession.getFactCount());
for (FactHandle handle : kieSession.getFactHandles()) {
logger.debug("FACT: " + handle);
}
}
}
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