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-rw-r--r--controlloop/common/controller-usecases/src/main/java/org/onap/policy/drools/apps/controller/usecases/UsecasesEventManager.java481
-rw-r--r--controlloop/common/controller-usecases/src/main/resources/usecases.drl8
2 files changed, 27 insertions, 462 deletions
diff --git a/controlloop/common/controller-usecases/src/main/java/org/onap/policy/drools/apps/controller/usecases/UsecasesEventManager.java b/controlloop/common/controller-usecases/src/main/java/org/onap/policy/drools/apps/controller/usecases/UsecasesEventManager.java
index d586240d9..4db243408 100644
--- a/controlloop/common/controller-usecases/src/main/java/org/onap/policy/drools/apps/controller/usecases/UsecasesEventManager.java
+++ b/controlloop/common/controller-usecases/src/main/java/org/onap/policy/drools/apps/controller/usecases/UsecasesEventManager.java
@@ -36,37 +36,21 @@ import static org.onap.policy.drools.apps.controller.usecases.UsecasesConstants.
import static org.onap.policy.drools.apps.controller.usecases.UsecasesConstants.VSERVER_PROV_STATUS;
import static org.onap.policy.drools.apps.controller.usecases.UsecasesConstants.VSERVER_VSERVER_NAME;
-import java.util.ArrayDeque;
import java.util.Deque;
-import java.util.LinkedHashMap;
-import java.util.LinkedList;
import java.util.Map;
import java.util.Set;
import java.util.stream.Collectors;
import java.util.stream.Stream;
-import lombok.Getter;
-import lombok.NonNull;
-import lombok.Setter;
-import lombok.ToString;
-import org.apache.commons.lang3.StringUtils;
import org.drools.core.WorkingMemory;
-import org.kie.api.runtime.rule.FactHandle;
-import org.onap.policy.controlloop.ControlLoopEventStatus;
import org.onap.policy.controlloop.ControlLoopException;
-import org.onap.policy.controlloop.ControlLoopNotificationType;
-import org.onap.policy.controlloop.ControlLoopOperation;
import org.onap.policy.controlloop.ControlLoopResponse;
import org.onap.policy.controlloop.VirtualControlLoopEvent;
-import org.onap.policy.controlloop.VirtualControlLoopNotification;
-import org.onap.policy.controlloop.actorserviceprovider.OperationFinalResult;
import org.onap.policy.controlloop.actorserviceprovider.OperationOutcome;
import org.onap.policy.controlloop.actorserviceprovider.OperationProperties;
-import org.onap.policy.controlloop.actorserviceprovider.OperationResult;
-import org.onap.policy.controlloop.actorserviceprovider.TargetType;
import org.onap.policy.controlloop.actorserviceprovider.parameters.ControlLoopOperationParams;
import org.onap.policy.controlloop.drl.legacy.ControlLoopParams;
import org.onap.policy.controlloop.eventmanager.ActorConstants;
-import org.onap.policy.controlloop.eventmanager.ControlLoopEventManager;
+import org.onap.policy.controlloop.eventmanager.ClEventManagerWithEvent;
import org.onap.policy.controlloop.eventmanager.StepContext;
import org.onap.policy.drools.apps.controller.usecases.step.AaiCqStep2;
import org.onap.policy.drools.apps.controller.usecases.step.AaiGetPnfStep2;
@@ -75,14 +59,7 @@ import org.onap.policy.drools.apps.controller.usecases.step.GetTargetEntityStep2
import org.onap.policy.drools.apps.controller.usecases.step.GuardStep2;
import org.onap.policy.drools.apps.controller.usecases.step.LockStep2;
import org.onap.policy.drools.apps.controller.usecases.step.Step2;
-import org.onap.policy.drools.domain.models.operational.ActorOperation;
-import org.onap.policy.drools.domain.models.operational.Operation;
-import org.onap.policy.drools.domain.models.operational.OperationalTarget;
-import org.onap.policy.drools.system.PolicyEngine;
-import org.onap.policy.drools.system.PolicyEngineConstants;
import org.onap.policy.sdnr.PciMessage;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
/**
* Manager for a single control loop event. Once this has been created, the event can be
@@ -90,19 +67,11 @@ import org.slf4j.LoggerFactory;
* involves at least one step. As a step is processed, additional preprocessor steps may
* be pushed onto the queue (e.g., locks, A&AI queries, guards).
*/
-@ToString(onlyExplicitlyIncluded = true)
-public class UsecasesEventManager extends ControlLoopEventManager implements StepContext {
+public class UsecasesEventManager extends ClEventManagerWithEvent<Step2> implements StepContext {
- private static final Logger logger = LoggerFactory.getLogger(UsecasesEventManager.class);
private static final long serialVersionUID = -1216568161322872641L;
/**
- * Maximum number of steps, for a single policy, allowed in the queue at a time. This
- * prevents an infinite loop occurring with calls to {@link #loadPreprocessorSteps()}.
- */
- public static final int MAX_STEPS = 30;
-
- /**
* If there's a failure from one of these actors, then the TOSCA processing should be
* aborted.
*/
@@ -132,94 +101,6 @@ public class UsecasesEventManager extends ControlLoopEventManager implements Ste
OperationProperties.AAI_VNF_MODEL, OperationProperties.AAI_SERVICE,
OperationProperties.AAI_RESOURCE_VNF, UsecasesConstants.AAI_DEFAULT_GENERIC_VNF);
- public enum State {
- LOAD_POLICY, POLICY_LOADED, AWAITING_OUTCOME, DONE
- }
-
- public enum NewEventStatus {
- FIRST_ONSET, SUBSEQUENT_ONSET, FIRST_ABATEMENT, SUBSEQUENT_ABATEMENT, SYNTAX_ERROR
- }
-
- @Getter
- private final VirtualControlLoopEvent event;
-
- /**
- * Request ID, as a String.
- */
- private final String requestIdStr;
-
- @Getter
- @Setter
- private State state;
-
- /**
- * {@code True} if the event has been accepted (i.e., an "ACTIVE" notification has
- * been delivered), {@code false} otherwise.
- */
- @Getter
- @Setter
- private boolean accepted;
-
- /**
- * Queue of steps waiting to be performed.
- */
- @Getter
- private final transient Deque<Step2> steps = new ArrayDeque<>(6);
-
- /**
- * Number of attempts, so far, for the current step.
- */
- @Getter
- private int attempts;
-
- /**
- * Policy currently being processed.
- */
- private Operation policy;
-
- /**
- * Result of the last policy operation. This is just a place where the rules can store
- * the value for passing to {@link #loadNextPolicy()}.
- */
- @Getter
- @Setter
- private OperationResult result = OperationResult.SUCCESS;
-
- @ToString.Include
- private int numOnsets = 1;
- @ToString.Include
- private int numAbatements = 0;
-
- private VirtualControlLoopEvent abatement = null;
-
- /**
- * Full history of operations that have been processed by the rules. This includes the
- * items in {@link #partialHistory}.
- */
- @Getter
- private final transient Deque<OperationOutcome2> fullHistory = new LinkedList<>();
-
- /**
- * History of operations that have been processed by the rules for the current policy.
- * When a step is started, its "start" outcome is added. However, once it completes,
- * its "start" outcome is removed and the "completed" outcome is added.
- */
- @Getter
- private final transient Deque<OperationOutcome2> partialHistory = new LinkedList<>();
-
- @Getter
- private OperationFinalResult finalResult = null;
-
- /**
- * Message to be placed into the final notification. Typically used when something
- * causes processing to abort.
- */
- @Getter
- private String finalMessage = null;
-
- private final transient WorkingMemory workMem;
- private transient FactHandle factHandle;
-
/**
* Constructs the object.
@@ -233,9 +114,7 @@ public class UsecasesEventManager extends ControlLoopEventManager implements Ste
public UsecasesEventManager(ControlLoopParams params, VirtualControlLoopEvent event, WorkingMemory workMem)
throws ControlLoopException {
- super(params, event.getRequestId());
-
- checkEventSyntax(event);
+ super(params, event, workMem);
if (isClosedLoopDisabled(event)) {
throw new IllegalStateException("is-closed-loop-disabled is set to true on VServer or VNF");
@@ -244,127 +123,24 @@ public class UsecasesEventManager extends ControlLoopEventManager implements Ste
if (isProvStatusInactive(event)) {
throw new IllegalStateException("prov-status is not ACTIVE on VServer or VNF");
}
-
- this.event = event;
- this.workMem = workMem;
- this.requestIdStr = getRequestId().toString();
- }
-
- @Override
- public void destroy() {
- for (Step2 step : steps) {
- step.cancel();
- }
-
- super.destroy();
- }
-
- /**
- * Starts the manager and loads the first policy.
- *
- * @throws ControlLoopException if the processor cannot get a policy
- */
- public void start() throws ControlLoopException {
- if (!isActive()) {
- throw new IllegalStateException("manager is no longer active");
- }
-
- if ((factHandle = workMem.getFactHandle(this)) == null) {
- throw new IllegalStateException("manager is not in working memory");
- }
-
- if (!steps.isEmpty()) {
- throw new IllegalStateException("manager already started");
- }
-
- loadPolicy();
}
- /**
- * Indicates that processing has been aborted.
- *
- * @param finalState final state
- * @param finalResult final result
- * @param finalMessage final message
- */
- public void abort(@NonNull State finalState, OperationFinalResult finalResult, String finalMessage) {
- this.state = finalState;
- this.finalResult = finalResult;
- this.finalMessage = finalMessage;
- }
-
- /**
- * Loads the next policy.
- *
- * @param lastResult result from the last policy
- *
- * @throws ControlLoopException if the processor cannot get a policy
+ /*
+ * This is needed to satisfy drools.
*/
- public void loadNextPolicy(@NonNull OperationResult lastResult) throws ControlLoopException {
- getProcessor().nextPolicyForResult(lastResult);
- loadPolicy();
- }
-
- /**
- * Loads the current policy.
- *
- * @throws ControlLoopException if the processor cannot get a policy
- */
- private void loadPolicy() throws ControlLoopException {
- partialHistory.clear();
-
- if ((finalResult = getProcessor().checkIsCurrentPolicyFinal()) != null) {
- // final policy - nothing more to do
- return;
- }
-
- policy = getProcessor().getCurrentPolicy();
-
- ActorOperation actor = policy.getActorOperation();
-
- OperationalTarget target = actor.getTarget();
- String targetType = (target != null ? target.getTargetType() : null);
- Map<String, String> entityIds = (target != null ? target.getEntityIds() : null);
-
- // convert policy payload from Map<String,String> to Map<String,Object>
- Map<String, Object> payload = new LinkedHashMap<>();
- if (actor.getPayload() != null) {
- payload.putAll(actor.getPayload());
- }
-
- // @formatter:off
- ControlLoopOperationParams params = ControlLoopOperationParams.builder()
- .actorService(getActorService())
- .actor(actor.getActor())
- .operation(actor.getOperation())
- .requestId(event.getRequestId())
- .executor(getExecutor())
- .retry(policy.getRetries())
- .timeoutSec(policy.getTimeout())
- .targetType(TargetType.toTargetType(targetType))
- .targetEntityIds(entityIds)
- .payload(payload)
- .startCallback(this::onStart)
- .completeCallback(this::onComplete)
- .build();
- // @formatter:on
-
- // load the policy's operation
- steps.add(new Step2(this, params, event));
+ @Override
+ public Deque<Step2> getSteps() {
+ return super.getSteps();
}
/**
* Loads the preprocessor steps needed by the step that's at the front of the queue.
*/
public void loadPreprocessorSteps() {
- if (steps.size() >= MAX_STEPS) {
- throw new IllegalStateException("too many steps");
- }
-
- final Step2 step = steps.peek();
+ super.loadPreprocessorSteps();
- // initialize the step so we can query its properties
- step.init();
+ final Deque<Step2> steps = getSteps();
+ final Step2 step = getSteps().peek();
// determine if any A&AI queries are needed
boolean needCq = false;
@@ -422,124 +198,13 @@ public class UsecasesEventManager extends ControlLoopEventManager implements Ste
}
/**
- * Executes the first step in the queue.
- *
- * @return {@code true} if the step was started, {@code false} if it is no longer
- * needed (or if the queue is empty)
- */
- public boolean executeStep() {
- attempts = 0;
-
- Step2 step = steps.peek();
- if (step == null) {
- return false;
- }
-
- return step.start(getEndTimeMs() - System.currentTimeMillis());
- }
-
- /**
- * Discards the current step, if any.
- */
- public void nextStep() {
- steps.poll();
- }
-
- /**
- * Increments the number of attempts.
- */
- public void bumpAttempts() {
- ++attempts;
- }
-
- /**
* Determines if the TOSCA should be aborted due to the given outcome.
*
* @param outcome outcome to examine
* @return {@code true} if the TOSCA should be aborted, {@code false} otherwise
*/
public boolean isAbort(OperationOutcome outcome) {
- return (outcome.getResult() != OperationResult.SUCCESS && ABORT_ACTORS.contains(outcome.getActor()));
- }
-
- /**
- * Adds the outcome to the history.
- *
- * @param outcome outcome to add
- */
- public void addToHistory(OperationOutcome outcome) {
- OperationOutcome2 last = partialHistory.peekLast();
-
- if (last != null && last.getOutcome().getEnd() == null
- && last.getOutcome().isFor(outcome.getActor(), outcome.getOperation())) {
- // last item was a "start" - remove it
- partialHistory.removeLast();
-
- if (fullHistory.peekLast() == last) {
- fullHistory.removeLast();
- }
- }
-
- OperationOutcome2 outcome2 = new OperationOutcome2(outcome);
- partialHistory.add(outcome2);
- fullHistory.add(outcome2);
- }
-
- /**
- * Makes a notification message for the current operation.
- *
- * @return a new notification
- */
- public VirtualControlLoopNotification makeNotification() {
- VirtualControlLoopNotification notif = new VirtualControlLoopNotification(event);
- notif.setNotification(ControlLoopNotificationType.OPERATION);
- notif.setFrom("policy");
- notif.setPolicyVersion(getPolicyVersion());
-
- if (finalResult != null) {
- return notif;
- }
-
- OperationOutcome2 last = partialHistory.peekLast();
- if (last == null) {
- return notif;
- }
-
- notif.setMessage(last.getClOperation().toHistory());
- notif.setHistory(partialHistory.stream().map(OperationOutcome2::getClOperation).collect(Collectors.toList()));
-
- return notif;
- }
-
- /**
- * Delivers a notification to a topic.
- *
- * @param sinkName name of the topic sink
- * @param notification notification to be published, or {@code null} if nothing is to
- * be published
- * @param notificationType type of notification, used when logging error messages
- * @param ruleName name of the rule doing the publishing
- */
- public <T> void deliver(String sinkName, T notification, String notificationType, String ruleName) {
- try {
- if (notification != null) {
- getPolicyEngineManager().deliver(sinkName, notification);
- }
-
- } catch (RuntimeException e) {
- logger.warn("{}: {}.{}: manager={} exception publishing {}", getClosedLoopControlName(), getPolicyName(),
- ruleName, this, notificationType, e);
- }
- }
-
- /**
- * Get the last operation, as a message.
- *
- * @return the last operation, as a message
- */
- public String getOperationMessage() {
- OperationOutcome2 last = fullHistory.peekLast();
- return (last == null ? null : last.getClOperation().toMessage());
+ return (super.isAbort(outcome) && ABORT_ACTORS.contains(outcome.getActor()));
}
/**
@@ -548,10 +213,7 @@ public class UsecasesEventManager extends ControlLoopEventManager implements Ste
* @param outcome operation outcome to store
*/
public void storeInDataBase(OperationOutcome2 outcome) {
- String targetEntity = getProperty(OperationProperties.AAI_TARGET_ENTITY);
-
- getDataManager().store(requestIdStr, event.getClosedLoopControlName(), event, targetEntity,
- outcome.getClOperation());
+ storeInDataBase(outcome, getProperty(OperationProperties.AAI_TARGET_ENTITY));
}
/**
@@ -561,14 +223,7 @@ public class UsecasesEventManager extends ControlLoopEventManager implements Ste
* @return a new control loop response, or {@code null} if none is required
*/
public ControlLoopResponse makeControlLoopResponse(OperationOutcome outcome) {
- ControlLoopResponse clRsp = new ControlLoopResponse();
- clRsp.setFrom(outcome.getActor());
- clRsp.setTarget("DCAE");
- clRsp.setClosedLoopControlName(event.getClosedLoopControlName());
- clRsp.setPolicyName(event.getPolicyName());
- clRsp.setPolicyVersion(event.getPolicyVersion());
- clRsp.setRequestId(event.getRequestId());
- clRsp.setVersion(event.getVersion());
+ ControlLoopResponse clRsp = super.makeControlLoopResponse(outcome);
Object obj = outcome.getResponse();
if (!(obj instanceof PciMessage)) {
@@ -584,68 +239,22 @@ public class UsecasesEventManager extends ControlLoopEventManager implements Ste
}
/**
- * An event onset/abatement.
- *
- * @param newEvent the event
- * @return the status
- */
- public NewEventStatus onNewEvent(VirtualControlLoopEvent newEvent) {
- try {
- checkEventSyntax(newEvent);
-
- if (newEvent.getClosedLoopEventStatus() == ControlLoopEventStatus.ONSET) {
- if (newEvent.equals(event)) {
- return NewEventStatus.FIRST_ONSET;
- }
-
- numOnsets++;
- return NewEventStatus.SUBSEQUENT_ONSET;
-
- } else {
- if (abatement == null) {
- abatement = newEvent;
- numAbatements++;
- return NewEventStatus.FIRST_ABATEMENT;
- } else {
- numAbatements++;
- return NewEventStatus.SUBSEQUENT_ABATEMENT;
- }
- }
- } catch (ControlLoopException e) {
- logger.error("{}: onNewEvent threw an exception", this, e);
- return NewEventStatus.SYNTAX_ERROR;
- }
- }
-
- /**
* Check an event syntax.
*
* @param event the event syntax
* @throws ControlLoopException if an error occurs
*/
protected void checkEventSyntax(VirtualControlLoopEvent event) throws ControlLoopException {
- validateStatus(event);
- if (StringUtils.isBlank(event.getClosedLoopControlName())) {
- throw new ControlLoopException("No control loop name");
- }
- if (event.getRequestId() == null) {
- throw new ControlLoopException("No request ID");
- }
- if (event.getClosedLoopEventStatus() == ControlLoopEventStatus.ABATED) {
- return;
- }
- if (StringUtils.isBlank(event.getTarget())) {
- throw new ControlLoopException("No target field");
- } else if (!VALID_TARGETS.contains(event.getTarget().toLowerCase())) {
- throw new ControlLoopException("target field invalid");
- }
+ super.checkEventSyntax(event);
validateAaiData(event);
}
- private void validateStatus(VirtualControlLoopEvent event) throws ControlLoopException {
- if (event.getClosedLoopEventStatus() != ControlLoopEventStatus.ONSET
- && event.getClosedLoopEventStatus() != ControlLoopEventStatus.ABATED) {
- throw new ControlLoopException("Invalid value in closedLoopEventStatus");
+ @Override
+ protected void validateTarget(VirtualControlLoopEvent event) throws ControlLoopException {
+ super.validateTarget(event);
+
+ if (!VALID_TARGETS.contains(event.getTarget().toLowerCase())) {
+ throw new ControlLoopException("target field invalid");
}
}
@@ -724,51 +333,7 @@ public class UsecasesEventManager extends ControlLoopEventManager implements Ste
}
@Override
- public void onStart(OperationOutcome outcome) {
- super.onStart(outcome);
- workMem.update(factHandle, this);
- }
-
- @Override
- public void onComplete(OperationOutcome outcome) {
- super.onComplete(outcome);
- workMem.update(factHandle, this);
- }
-
- @Getter
- @ToString
- public class OperationOutcome2 {
- private final int attempt;
- private final OperationOutcome outcome;
- private final ControlLoopOperation clOperation;
-
- /**
- * Constructs the object.
- *
- * @param outcome outcome of the operation
- */
- public OperationOutcome2(OperationOutcome outcome) {
- this.outcome = outcome;
- this.attempt = attempts;
-
- clOperation = outcome.toControlLoopOperation();
-
- // TODO encode()?
- OperationalTarget target = policy.getActorOperation().getTarget();
- String targetStr = (target != null ? target.toString() : null);
- clOperation.setTarget(targetStr);
-
- if (outcome.getEnd() == null) {
- clOperation.setOutcome("Started");
- } else if (clOperation.getOutcome() == null) {
- clOperation.setOutcome("");
- }
- }
- }
-
- // these following methods may be overridden by junit tests
-
- protected PolicyEngine getPolicyEngineManager() {
- return PolicyEngineConstants.getManager();
+ protected void loadPolicyStep(ControlLoopOperationParams params) {
+ getSteps().add(new Step2(this, params, getEvent()));
}
}
diff --git a/controlloop/common/controller-usecases/src/main/resources/usecases.drl b/controlloop/common/controller-usecases/src/main/resources/usecases.drl
index 12c9849f9..49ab78d71 100644
--- a/controlloop/common/controller-usecases/src/main/resources/usecases.drl
+++ b/controlloop/common/controller-usecases/src/main/resources/usecases.drl
@@ -2,7 +2,7 @@
* ============LICENSE_START=======================================================
* ONAP
* ================================================================================
- * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
+ * Copyright (C) 2020-2021 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.
@@ -42,9 +42,9 @@ import org.onap.policy.controlloop.eventmanager.ActorConstants;
import org.onap.policy.controlloop.eventmanager.Step;
import org.onap.policy.controlloop.utils.ControlLoopUtils;
import org.onap.policy.drools.apps.controller.usecases.UsecasesEventManager;
-import org.onap.policy.drools.apps.controller.usecases.UsecasesEventManager.State;
-import org.onap.policy.drools.apps.controller.usecases.UsecasesEventManager.NewEventStatus;
-import org.onap.policy.drools.apps.controller.usecases.UsecasesEventManager.OperationOutcome2;
+import org.onap.policy.controlloop.eventmanager.ClEventManagerWithSteps.State;
+import org.onap.policy.controlloop.eventmanager.ClEventManagerWithOutcome.OperationOutcome2;
+import org.onap.policy.controlloop.eventmanager.ClEventManagerWithEvent.NewEventStatus;
import org.onap.policy.models.tosca.authorative.concepts.ToscaPolicy;
import org.slf4j.LoggerFactory;