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/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2019 Bell Canada.
* ================================================================================
* 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 io.grpc.Server;
import io.grpc.ServerBuilder;
import io.grpc.stub.StreamObserver;
import java.io.IOException;
import java.time.Instant;
import java.util.HashMap;
import java.util.UUID;
import java.util.concurrent.atomic.AtomicReference;
import org.junit.After;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
import org.onap.ccsdk.cds.controllerblueprints.common.api.CommonHeader;
import org.onap.ccsdk.cds.controllerblueprints.common.api.EventType;
import org.onap.ccsdk.cds.controllerblueprints.common.api.Status;
import org.onap.ccsdk.cds.controllerblueprints.processing.api.BluePrintProcessingServiceGrpc;
import org.onap.ccsdk.cds.controllerblueprints.processing.api.ExecutionServiceInput;
import org.onap.ccsdk.cds.controllerblueprints.processing.api.ExecutionServiceOutput;
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;
import org.onap.policy.controlloop.util.Serialization;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Test class for vfirewall use case using CDS actor.
*/
public class VfwControlLoopCdsTest extends ControlLoopBase implements TopicListener {
private static final Logger LOGGER = LoggerFactory.getLogger(VfwControlLoopCdsTest.class);
private final AtomicReference<StreamObserver<ExecutionServiceOutput>> responseObserverRef = new AtomicReference<>();
private Server server;
/**
* Setup the 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_vFW_CDS.yaml",
"service=ServiceDemo;resource=Res1Demo;type=operational", "CL_vFW",
"org.onap.closed_loop.ServiceDemo:VNFS:1.0.0");
SupportUtil.setCustomQuery("true");
}
@Before
public void setUp() throws IOException {
this.startGrpcServer();
}
@After
public void tearDown() {
this.stopGrpcServer();
}
private void startGrpcServer() throws IOException {
BluePrintProcessingServiceGrpc.BluePrintProcessingServiceImplBase cdsBlueprintServerImpl =
new BluePrintProcessingServiceGrpc.BluePrintProcessingServiceImplBase() {
@Override
public StreamObserver<ExecutionServiceInput> process(
final StreamObserver<ExecutionServiceOutput> responseObserver) {
responseObserverRef.set(responseObserver);
return new StreamObserver<ExecutionServiceInput>() {
@Override
public void onNext(final ExecutionServiceInput input) {
LOGGER.info("gRPC server onNext() for input: {} ...", input);
ExecutionServiceOutput output =
ExecutionServiceOutput.newBuilder()
.setCommonHeader(
CommonHeader.newBuilder().setRequestId(
input.getCommonHeader().getRequestId()).build())
.setStatus(
Status.newBuilder().setEventType(
EventType.EVENT_COMPONENT_EXECUTED).build())
.build();
responseObserver.onNext(output);
}
@Override
public void onError(final Throwable throwable) {
LOGGER.error("gRPC server onError() for throwable: {} ...", throwable);
}
@Override
public void onCompleted() {
LOGGER.info("gRPC server onCompleted() ...");
responseObserver.onCompleted();
}
};
}
};
server = ServerBuilder.forPort(SupportUtil.GRPC_SERVER_PORT).addService(cdsBlueprintServerImpl).build().start();
LOGGER.info("gRPC server is listening for CDS requests on port {}", SupportUtil.GRPC_SERVER_PORT);
}
private void stopGrpcServer() {
if (server != null) {
this.server.shutdown();
LOGGER.info("gRPC server handling CDS requests has been successfully shut down.");
}
}
@Test
public void successTest() {
/*
* 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();
kieSession.fireAllRules();
/*
* The only fact in memory should be Params
*/
assertEquals(1, kieSession.getFactCount());
/*
* Print what's left in memory
*/
dumpFacts(kieSession);
}
/*
* @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 ControlLoopNotification
* of type active
*/
assertEquals("POLICY-CL-MGT", topic);
VirtualControlLoopNotification notification =
Serialization.gsonJunit.fromJson(event, VirtualControlLoopNotification.class);
assertNotNull(notification);
String policyName = notification.getPolicyName();
if (policyName.endsWith("EVENT")) {
logger.debug("Rule Fired: " + notification.getPolicyName());
assertEquals(ControlLoopNotificationType.ACTIVE, notification.getNotification());
} else if (policyName.endsWith("GUARD_NOT_YET_QUERIED")) {
logger.debug("Rule Fired: " + notification.getPolicyName());
assertEquals(ControlLoopNotificationType.OPERATION, notification.getNotification());
assertNotNull(notification.getMessage());
assertTrue(notification.getMessage().startsWith("Sending guard query"));
} else if (policyName.endsWith("GUARD.RESPONSE")) {
logger.debug("Rule Fired: " + notification.getPolicyName());
assertEquals(ControlLoopNotificationType.OPERATION, notification.getNotification());
assertNotNull(notification.getMessage());
assertTrue(notification.getMessage().toLowerCase().endsWith("permit"));
} else if (policyName.endsWith("GUARD_PERMITTED")) {
logger.debug("Rule Fired: " + notification.getPolicyName());
assertEquals(ControlLoopNotificationType.OPERATION, notification.getNotification());
assertNotNull(notification.getMessage());
assertTrue(notification.getMessage().startsWith("actor=CDS"));
} 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("CDS.RESPONSE")) {
logger.debug("Rule Fired: " + notification.getPolicyName());
assertEquals(ControlLoopNotificationType.OPERATION_SUCCESS, notification.getNotification());
assertNotNull(notification.getMessage());
assertTrue(notification.getMessage().startsWith("actor=CDS"));
sendEvent(pair.first, requestId, ControlLoopEventStatus.ABATED);
} else if (policyName.endsWith("EVENT.MANAGER")) {
logger.debug("Rule Fired: " + notification.getPolicyName());
if ("error".equals(notification.getAai().get("generic-vnf.vnf-name"))) {
assertEquals(ControlLoopNotificationType.FINAL_FAILURE, notification.getNotification());
assertEquals("Target vnf-id could not be found", notification.getMessage());
} else if ("getFail".equals(notification.getAai().get("generic-vnf.vnf-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");
}
}
/**
* 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
*/
private void sendEvent(ControlLoopPolicy policy, UUID requestId, ControlLoopEventStatus status) {
VirtualControlLoopEvent event = new VirtualControlLoopEvent();
event.setClosedLoopControlName(policy.getControlLoop().getControlLoopName());
event.setRequestId(requestId);
event.setTarget("generic-vnf.vnf-name");
event.setClosedLoopAlarmStart(Instant.now());
event.setAai(new HashMap<>());
event.getAai().put("generic-vnf.vnf-name", "testGenericVnfID");
event.getAai().put("vserver.vserver-name", "OzVServer");
event.setClosedLoopEventStatus(status);
kieSession.insert(event);
}
}
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