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/*-
* ============LICENSE_START=======================================================
* demo
* ================================================================================
* Copyright (C) 2017-2019 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.time.Instant;
import java.util.HashMap;
import java.util.UUID;
import org.junit.BeforeClass;
import org.junit.Test;
import org.onap.policy.appclcm.LcmRequest;
import org.onap.policy.appclcm.LcmRequestWrapper;
import org.onap.policy.appclcm.LcmResponse;
import org.onap.policy.appclcm.LcmResponseWrapper;
import org.onap.policy.common.endpoints.event.comm.Topic.CommInfrastructure;
import org.onap.policy.common.endpoints.event.comm.TopicListener;
import org.onap.policy.common.endpoints.event.comm.TopicSink;
import org.onap.policy.controlloop.ControlLoopEventStatus;
import org.onap.policy.controlloop.ControlLoopNotificationType;
import org.onap.policy.controlloop.VirtualControlLoopEvent;
import org.onap.policy.controlloop.VirtualControlLoopNotification;
import org.onap.policy.controlloop.policy.ControlLoopPolicy;
public class ControlLoopFailureTest extends ControlLoopBase implements TopicListener {
private UUID requestId2;
private UUID requestId3;
private int eventCount;
/**
* Setup simulator.
*/
@BeforeClass
public static void setUpBeforeClass() {
ControlLoopBase.setUpBeforeClass(
"../archetype-cl-amsterdam/src/main/resources/archetype-resources"
+ "/src/main/resources/__closedLoopControlName__.drl",
"src/test/resources/yaml/policy_ControlLoop_vCPE.yaml",
"service=ServiceDemo;resource=Res1Demo;type=operational",
"CL_vCPE",
"org.onap.closed_loop.ServiceDemo:VNFS:1.0.0");
}
/**
* This test case tests the scenario where 3 events occur and 2 of the requests refer to the
* same target entity while the 3rd is for another entity. The expected result is that the event
* with the duplicate target entity will have a final success result for one of the events, and
* a rejected message for the one that was unable to obtain the lock. The event that is
* referring to a different target entity should be able to obtain a lock since it is a
* different target. After processing of all events there should only be the params object left
* in memory.
*/
@Test
public void targetLockedTest() {
/*
* 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();
/*
* This will be a unique request for another target entity
*/
requestId2 = UUID.randomUUID();
/*
* This will be a request duplicating the target entity of the first request
*/
requestId3 = 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, "vnf01");
/*
* Send a second event requesting an action for a different target entity
*/
sendEvent(pair.first, requestId2, ControlLoopEventStatus.ONSET, "vnf02");
/*
* Send a second event for a different target to ensure there are no problems with obtaining
* a lock for a different
*/
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);
}
/*
* (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);
} else if ("APPC-LCM-READ".equals(topic)) {
obj = org.onap.policy.appclcm.util.Serialization.gsonJunit.fromJson(event,
org.onap.policy.appclcm.LcmRequestWrapper.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=APPC"));
} 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("APPC.LCM.RESPONSE")) {
logger.debug("Rule Fired: " + notification.getPolicyName());
assertTrue(ControlLoopNotificationType.OPERATION_SUCCESS.equals(notification.getNotification()));
assertNotNull(notification.getMessage());
assertTrue(notification.getMessage().startsWith("actor=APPC"));
if (requestId.equals(notification.getRequestId())) {
sendEvent(pair.first, requestId, ControlLoopEventStatus.ABATED, "vnf01");
} else if (requestId2.equals(notification.getRequestId())) {
sendEvent(pair.first, requestId2, ControlLoopEventStatus.ABATED, "vnf02");
}
} else if (policyName.endsWith("EVENT.MANAGER")) {
logger.debug("Rule Fired: " + notification.getPolicyName());
if (requestId3.equals(notification.getRequestId())) {
/*
* The event with the duplicate target should be rejected
*/
assertTrue(ControlLoopNotificationType.REJECTED.equals(notification.getNotification()));
} else {
assertTrue(ControlLoopNotificationType.FINAL_SUCCESS.equals(notification.getNotification()));
}
if (++eventCount == 3) {
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 LcmRequestWrapper) {
/*
* The request should be of type LCMRequestWrapper and the subrequestid should be 1
*/
LcmRequestWrapper dmaapRequest = (LcmRequestWrapper) obj;
LcmRequest appcRequest = dmaapRequest.getBody();
assertTrue(appcRequest.getCommonHeader().getSubRequestId().equals("1"));
logger.debug("\n============ APPC received the request!!! ===========\n");
/*
* Simulate a success response from APPC and insert the response into the working memory
*/
LcmResponseWrapper dmaapResponse = new LcmResponseWrapper();
LcmResponse appcResponse = new LcmResponse(appcRequest);
appcResponse.getStatus().setCode(400);
appcResponse.getStatus().setMessage("AppC success");
dmaapResponse.setBody(appcResponse);
/*
* Interrupting with a different request for the same target entity to check if lock
* will be denied
*/
if (requestId.equals(appcResponse.getCommonHeader().getRequestId())) {
sendEvent(pair.first, requestId3, ControlLoopEventStatus.ONSET, "vnf01");
}
kieSession.insert(dmaapResponse);
}
}
/**
* 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
* @param target the target entity to take an action on
*/
protected void sendEvent(ControlLoopPolicy policy, UUID requestId, ControlLoopEventStatus status, String target) {
VirtualControlLoopEvent event = new VirtualControlLoopEvent();
event.setClosedLoopControlName(policy.getControlLoop().getControlLoopName());
event.setRequestId(requestId);
event.setTarget("generic-vnf.vnf-id");
event.setClosedLoopAlarmStart(Instant.now());
event.setAai(new HashMap<>());
event.getAai().put("generic-vnf.vnf-id", target);
event.setClosedLoopEventStatus(status);
kieSession.insert(event);
}
}
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