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+/*
+ * ============LICENSE_START=======================================================
+ * ONAP
+ * ================================================================================
+ * Copyright (C) 2020 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.controlloop;
+
+import org.onap.policy.controlloop.drl.legacy.ControlLoopParams;
+import org.onap.policy.controlloop.CanonicalOnset;
+import org.onap.policy.controlloop.VirtualControlLoopEvent;
+import org.onap.policy.controlloop.VirtualControlLoopNotification;
+import org.onap.policy.controlloop.ControlLoopNotificationType;
+import org.onap.policy.controlloop.policy.Policy;
+import org.onap.policy.controlloop.eventmanager.ControlLoopEventManager2;
+import org.onap.policy.controlloop.eventmanager.ControlLoopEventManager2.NewEventStatus;
+import org.onap.policy.controlloop.eventmanager.ControlLoopOperationManager2;
+import org.onap.policy.controlloop.utils.ControlLoopUtils;
+import org.onap.policy.models.tosca.authorative.concepts.ToscaPolicy;
+
+import org.slf4j.LoggerFactory;
+import org.slf4j.Logger;
+
+import org.onap.policy.drools.system.PolicyEngineConstants;
+
+/*
+*
+* Called when the ControlLoopParams object has been inserted into working memory from the BRMSGW.
+*
+*/
+rule "INSERT.PARAMS"
+ when
+ $params : ControlLoopParams()
+ then
+
+ Logger logger = LoggerFactory.getLogger(drools.getRule().getPackage());
+ logger.info("{}: {} : TOSCA-POLICY=[{}]", $params.getClosedLoopControlName(), $params.getPolicyName() + "."
+ + drools.getRule().getName(), $params.getToscaPolicy());
+end
+
+/*
+*
+* Called when a Tosca Policy is present.
+*
+*/
+rule "NEW.TOSCA.POLICY"
+ when
+ $policy : ToscaPolicy()
+ then
+
+ Logger logger = LoggerFactory.getLogger(drools.getRule().getPackage());
+ logger.info("{}: [{}|{}|{}|{}]: CONTENT: {}", drools.getRule().getName(),
+ $policy.getType(), $policy.getTypeVersion(), $policy.getName(),
+ $policy.getVersion(), $policy);
+
+ ControlLoopParams params = ControlLoopUtils.toControlLoopParams($policy);
+ if (params != null) {
+ insert(params);
+ }
+end
+
+/*
+ * Remove Control Loop Parameters.
+ */
+rule "REMOVE.PARAMS"
+ when
+ $params : ControlLoopParams( $policyName : getPolicyName(), $policyVersion : getPolicyVersion() )
+ not ( ToscaPolicy( getName() == $policyName, getVersion() == $policyVersion ) )
+ then
+
+ Logger logger = LoggerFactory.getLogger(drools.getRule().getPackage());
+ logger.info("{}: [{}|{}|{}]", drools.getRule().getName(),
+ $params.getPolicyScope(), $params.getPolicyName(), $params.getPolicyVersion());
+
+ retract($params);
+end
+
+/*
+*
+* This rule responds to DCAE Events where there is no manager yet. Either it is
+* the first ONSET, or a subsequent badly formed Event (i.e. Syntax error, or is-closed-loop-disabled)
+*
+*/
+rule "EVENT"
+ when
+ $params : ControlLoopParams( $clName : getClosedLoopControlName() )
+ $event : CanonicalOnset( closedLoopControlName == $clName )
+ not ( ControlLoopEventManager2( closedLoopControlName == $event.getClosedLoopControlName(),
+ requestId == $event.getRequestId() ) )
+ then
+
+ Logger logger = LoggerFactory.getLogger(drools.getRule().getPackage());
+ logger.info("{}: {}.{}: event={}",
+ $clName, $params.getPolicyName(), drools.getRule().getName(),
+ $event);
+ //
+ // Retract the event from memory; it will be managed by the manager for now on
+ //
+ retract($event);
+
+ VirtualControlLoopNotification notification;
+
+ try {
+ //
+ // Check the event, because we need it to not be null when
+ // we create the ControlLoopEventManager2. The ControlLoopEventManager2
+ // will do extra syntax checking as well as check if the closed loop is disabled.
+ //
+ if ($event.getRequestId() == null) {
+ notification = new VirtualControlLoopNotification($event);
+ notification.setNotification(ControlLoopNotificationType.REJECTED);
+ notification.setFrom("policy");
+ notification.setMessage("Missing requestId");
+ notification.setPolicyName($params.getPolicyName() + "." + drools.getRule().getName());
+ notification.setPolicyScope($params.getPolicyScope());
+ notification.setPolicyVersion($params.getPolicyVersion());
+
+ } else {
+ ControlLoopEventManager2 manager = new ControlLoopEventManager2($params, $event, drools.getWorkingMemory());
+ insert(manager);
+ try {
+ manager.start();
+ } catch(Exception e) {
+ retract(manager);
+ throw e;
+ }
+ notification = manager.makeNotification();
+ notification.setNotification(ControlLoopNotificationType.ACTIVE);
+ notification.setPolicyName($params.getPolicyName() + "." + drools.getRule().getName());
+ }
+ } catch (Exception e) {
+ logger.warn("{}: {}.{}", $clName, $params.getPolicyName(), drools.getRule().getName(), e);
+ notification = new VirtualControlLoopNotification($event);
+ notification.setNotification(ControlLoopNotificationType.REJECTED);
+ notification.setMessage("Exception occurred: " + e.getMessage());
+ notification.setPolicyName($params.getPolicyName() + "." + drools.getRule().getName());
+ notification.setPolicyScope($params.getPolicyScope());
+ notification.setPolicyVersion($params.getPolicyVersion());
+ }
+ //
+ // Generate notification
+ //
+ try {
+ PolicyEngineConstants.getManager().deliver("POLICY-CL-MGT", notification);
+
+ } catch(RuntimeException e) {
+ logger.warn("{}: {}.{}: event={} exception generating notification",
+ $clName, $params.getPolicyName(), drools.getRule().getName(),
+ $event, e);
+ }
+end
+
+/*
+*
+* This rule happens when we get a subsequent event.
+*
+*/
+rule "EVENT.MANAGER.NEW.EVENT"
+ when
+ $event : VirtualControlLoopEvent( )
+ $manager : ControlLoopEventManager2( closedLoopControlName == $event.getClosedLoopControlName(),
+ requestId == $event.getRequestId() )
+ then
+
+ Logger logger = LoggerFactory.getLogger(drools.getRule().getPackage());
+ logger.info("{}: {}.{}: event={} manager={}",
+ $manager.getClosedLoopControlName(), $manager.getPolicyName(), drools.getRule().getName(),
+ $event, $manager);
+ //
+ // Remove the event from memory
+ //
+ retract($event);
+
+ //
+ // Check what kind of event this is
+ //
+ switch($manager.onNewEvent($event)) {
+ case SYNTAX_ERROR:
+ //
+ // Ignore any bad syntax events
+ //
+ logger.warn("{}: {}.{}: syntax error",
+ $manager.getClosedLoopControlName(), $manager.getPolicyName(), drools.getRule().getName());
+ break;
+
+ case FIRST_ABATEMENT:
+ case SUBSEQUENT_ABATEMENT:
+ //
+ // TODO: handle the abatement. Currently, it's just discarded.
+ //
+ break;
+
+ case FIRST_ONSET:
+ case SUBSEQUENT_ONSET:
+ default:
+ //
+ // We don't care about subsequent onsets
+ //
+ logger.warn("{}: {}.{}: subsequent onset",
+ $manager.getClosedLoopControlName(), $manager.getPolicyName(), drools.getRule().getName());
+ break;
+ }
+end
+
+/*
+*
+* Step completed
+*
+*/
+rule "EVENT.MANAGER.PROCESSING"
+ when
+ $manager : ControlLoopEventManager2( isUpdated(), isActive(), $notification : getNotification() )
+ then
+
+ Logger logger = LoggerFactory.getLogger(drools.getRule().getPackage());
+ logger.info("{}: {}.{}: manager={}",
+ $manager.getClosedLoopControlName(), $manager.getPolicyName(), drools.getRule().getName(),
+ $manager);
+ //
+ // Generate notification
+ //
+ try {
+ $notification.setPolicyName($manager.getPolicyName() + "." + drools.getRule().getName());
+ PolicyEngineConstants.getManager().deliver("POLICY-CL-MGT", $notification);
+
+ } catch(RuntimeException e) {
+ logger.warn("{}: {}.{}: manager={} exception generating notification",
+ $manager.getClosedLoopControlName(), $manager.getPolicyName(), drools.getRule().getName(),
+ $manager, e);
+ }
+ //
+ // Discard this message and wait for the next response.
+ //
+ $manager.nextStep();
+ update($manager);
+end
+
+/*
+*
+* Final step completed
+*
+*/
+rule "EVENT.MANAGER.FINAL"
+ when
+ $manager : ControlLoopEventManager2( !isActive(), $notification : getNotification() )
+ then
+
+ Logger logger = LoggerFactory.getLogger(drools.getRule().getPackage());
+ logger.info("{}: {}.{}: manager={}",
+ $manager.getClosedLoopControlName(), $manager.getPolicyName(), drools.getRule().getName(),
+ $manager);
+ //
+ // Generate notification
+ //
+ try {
+ $notification.setPolicyName($manager.getPolicyName() + "." + drools.getRule().getName());
+ PolicyEngineConstants.getManager().deliver("POLICY-CL-MGT", $notification);
+
+ } catch(RuntimeException e) {
+ logger.warn("{}: {}.{}: manager={} exception generating notification",
+ $manager.getClosedLoopControlName(), $manager.getPolicyName(), drools.getRule().getName(),
+ $manager, e);
+ }
+ //
+ // Retract and destroy the manager
+ //
+ retract($manager);
+ $manager.destroy();
+end
+
+/*
+*
+* This rule will clean up any rogue events where there is no
+* ControlLoopParams object corresponding to the onset event.
+*
+*/
+rule "EVENT.CLEANUP"
+ salience -1
+ when
+ $event : VirtualControlLoopEvent( $clName: closedLoopControlName )
+ then
+
+ Logger logger = LoggerFactory.getLogger(drools.getRule().getPackage());
+ logger.info("{}: {}", $clName, drools.getRule().getName());
+ logger.debug("{}: {}: orphan event={}",
+ $clName, drools.getRule().getName(), $event);
+ //
+ // Retract the event
+ //
+ retract($event);
+end
+
+/*
+*
+* At this point, it appears that if we prevent the rules from getting messages from
+* topics, then that will also prevent the actors from getting them. So the following
+* rules are here just to discard those messages.
+*
+* These have a higher salience so the objects are removed before the "FINAL" message
+* is processed, so that the junit test can assume things are done once they see the
+* "FINAL" message. Otherwise, tests might fail sporadically.
+*
+*/
+rule "APPC.Response.CLEANUP"
+ salience 1
+ when
+ $msg : org.onap.policy.appc.Response( )
+ then
+ retract($msg);
+end
+
+rule "APPC.Request.CLEANUP"
+ salience 1
+ when
+ $msg : org.onap.policy.appc.Request( )
+ then
+ retract($msg);
+end
+
+rule "APPC-LCM.Response.CLEANUP"
+ salience 1
+ when
+ $msg : org.onap.policy.appclcm.AppcLcmDmaapWrapper( )
+ then
+ retract($msg);
+end
+
+rule "SDNR.Response.CLEANUP"
+ salience 1
+ when
+ $msg : org.onap.policy.sdnr.PciResponseWrapper( )
+ then
+ retract($msg);
+end