--- /dev/null
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP
+ * ================================================================================
+ * 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.controlloop;
+
+import org.onap.policy.controlloop.params.ControlLoopParams;
+import org.onap.policy.controlloop.VirtualControlLoopEvent;
+import org.onap.policy.controlloop.VirtualControlLoopNotification;
+import org.onap.policy.controlloop.ControlLoopEventStatus;
+import org.onap.policy.controlloop.ControlLoopNotificationType;
+import org.onap.policy.controlloop.ControlLoopLogger;
+import org.onap.policy.controlloop.policy.PolicyResult;
+import org.onap.policy.controlloop.policy.ControlLoopPolicy;
+import org.onap.policy.controlloop.policy.Policy;
+import org.onap.policy.controlloop.eventmanager.ControlLoopEventManager;
+import org.onap.policy.controlloop.eventmanager.ControlLoopEventManager.NEW_EVENT_STATUS;
+import org.onap.policy.controlloop.eventmanager.ControlLoopOperationManager;
+import org.onap.policy.controlloop.actor.so.SOActorServiceProvider;
+import org.onap.policy.aai.util.AAIException;
+import org.onap.policy.appc.Request;
+import org.onap.policy.appc.Response;
+import org.onap.policy.appc.CommonHeader;
+import org.onap.policy.appclcm.LCMRequestWrapper;
+import org.onap.policy.appclcm.LCMResponseWrapper;
+import org.onap.policy.appclcm.LCMRequest;
+import org.onap.policy.appclcm.LCMResponse;
+import org.onap.policy.appclcm.LCMCommonHeader;
+import org.onap.policy.vfc.VFCRequest;
+import org.onap.policy.vfc.VFCResponse;
+import org.onap.policy.vfc.VFCManager;
+import org.onap.policy.so.SOManager;
+import org.onap.policy.so.SORequest;
+import org.onap.policy.so.SORequestStatus;
+import org.onap.policy.so.SORequestDetails;
+import org.onap.policy.so.SOModelInfo;
+import org.onap.policy.so.SOCloudConfiguration;
+import org.onap.policy.so.SORequestInfo;
+import org.onap.policy.so.SORequestParameters;
+import org.onap.policy.so.SORelatedInstanceListElement;
+import org.onap.policy.so.SORelatedInstance;
+import org.onap.policy.so.SOResponse;
+import org.onap.policy.so.SOResponseWrapper;
+import org.onap.policy.guard.PolicyGuard;
+import org.onap.policy.guard.PolicyGuard.LockResult;
+import org.onap.policy.guard.TargetLock;
+import org.onap.policy.guard.GuardResult;
+import org.onap.policy.guard.PolicyGuardRequest;
+import org.onap.policy.guard.PolicyGuardResponse;
+import org.onap.policy.guard.PolicyGuardXacmlRequestAttributes;
+import org.onap.policy.guard.PolicyGuardXacmlHelper;
+
+import org.yaml.snakeyaml.Yaml;
+import org.yaml.snakeyaml.constructor.Constructor;
+
+import org.slf4j.LoggerFactory;
+import org.slf4j.Logger;
+
+import java.time.Instant;
+import java.util.LinkedList;
+import java.util.Iterator;
+
+import org.onap.policy.drools.system.PolicyEngine;
+
+/*
+ * Operation Timer
+ */
+declare OperationTimer
+ closedLoopControlName : String
+ requestID : String
+ delay : String
+end
+
+/*
+ * Control Loop Timer
+ */
+declare ControlLoopTimer
+ closedLoopControlName : String
+ requestID : String
+ delay : String
+end
+
+/*
+*
+* Called to insert the ControlLoopParams object into working memory from the BRMSGW.
+*
+*/
+rule "INSERT.PARAMS"
+ when
+ $params : ControlLoopParams()
+ then
+
+ insert($params);
+
+ // Note: globals have bad behavior when persistence is used,
+ // hence explicitly getting the logger vs using a global
+
+ Logger logger = LoggerFactory.getLogger(drools.getRule().getPackage());
+ logger.info("{}: {} : YAML=[{}]", $params.getClosedLoopControlName(), $params.getPolicyName() + "." + drools.getRule().getName(), $params.getControlLoopYaml());
+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 : VirtualControlLoopEvent( closedLoopControlName == $clName )
+ not ( ControlLoopEventManager( closedLoopControlName == $event.getClosedLoopControlName(), requestID == $event.getRequestID() ) )
+ then
+
+ Logger logger = LoggerFactory.getLogger(drools.getRule().getPackage());
+ logger.info("{}: {}", $clName, $params.getPolicyName() + "." + drools.getRule().getName());
+
+ try {
+
+ //
+ // Check the event, because we need it to not be null when
+ // we create the ControlLoopEventManager. The ControlLoopEventManager
+ // will do extra syntax checking as well check if the closed loop is disabled.
+ //
+ if ($event.getRequestID() == null) {
+ VirtualControlLoopNotification 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());
+
+ //
+ // Let interested parties know
+ //
+ PolicyEngine.manager.deliver("POLICY-CL-MGT", notification);
+
+ //
+ // Retract it from memory
+ //
+ retract($event);
+ } else if ($event.getClosedLoopEventStatus() != ControlLoopEventStatus.ONSET) {
+ throw new ControlLoopException($event.getClosedLoopEventStatus() + " received with no prior onset");
+ } else {
+ //
+ // Create an EventManager
+ //
+ ControlLoopEventManager manager = new ControlLoopEventManager($clName, $event.getRequestID());
+ //
+ // Determine if EventManager can actively process the event (i.e. syntax, is_closed_loop_disabled checks etc.)
+ //
+ VirtualControlLoopNotification notification = manager.activate($params.getControlLoopYaml(), $event);
+ notification.setFrom("pdp-0001-controller=controlloop"); // Engine.getInstanceName()
+ notification.setPolicyName($params.getPolicyName() + "." + drools.getRule().getName());
+ notification.setPolicyScope($params.getPolicyScope());
+ notification.setPolicyVersion($params.getPolicyVersion());
+ //
+ // Are we actively pursuing this event?
+ //
+ if (notification.getNotification() == ControlLoopNotificationType.ACTIVE) {
+ //
+ // Insert Event Manager into memory, this will now kick off processing.
+ //
+ insert(manager);
+ //
+ // Let interested parties know
+ //
+ PolicyEngine.manager.deliver("POLICY-CL-MGT", notification);
+ //
+ // Setup the Overall Control Loop timer
+ //
+ ControlLoopTimer clTimer = new ControlLoopTimer();
+ clTimer.setClosedLoopControlName($event.getClosedLoopControlName());
+ clTimer.setRequestID($event.getRequestID().toString());
+ clTimer.setDelay(manager.getControlLoopTimeout(1500) + "s");
+ //
+ // Insert it
+ //
+ insert(clTimer);
+ } else {
+ //
+ // Let interested parties know
+ //
+ PolicyEngine.manager.deliver("POLICY-CL-MGT", notification);
+ //
+ // Retract it from memory
+ //
+ retract($event);
+ }
+
+ //
+ // Now that the manager is inserted into Drools working memory, we'll wait for
+ // another rule to fire in order to continue processing. This way we can also
+ // then screen for additional ONSET and ABATED events for this RequestID.
+ //
+ }
+ } catch (Exception e) {
+ logger.warn("{}: {}", $clName, $params.getPolicyName() + "." + drools.getRule().getName(), e);
+
+ VirtualControlLoopNotification notification = new VirtualControlLoopNotification($event);
+ notification.setNotification(ControlLoopNotificationType.REJECTED);
+ notification.setMessage("Exception occurred: " + e.getMessage());
+ notification.setPolicyName($params.getPolicyName() + "." + drools.getRule().getName());
+ notification.setPolicyScope($params.getPolicyScope());
+ notification.setPolicyVersion($params.getPolicyVersion());
+ //
+ //
+ //
+ PolicyEngine.manager.deliver("POLICY-CL-MGT", notification);
+ //
+ // Retract the event
+ //
+ retract($event);
+ }
+end
+
+/*
+*
+* This rule happens when we got a valid ONSET, closed loop is enabled and an Event Manager
+* is now created. We can start processing the yaml specification via the Event Manager.
+*
+*/
+rule "EVENT.MANAGER"
+ when
+ $params : ControlLoopParams( $clName : getClosedLoopControlName() )
+ $event : VirtualControlLoopEvent( closedLoopControlName == $clName )
+ $manager : ControlLoopEventManager( closedLoopControlName == $event.getClosedLoopControlName(), requestID == $event.getRequestID() )
+ $clTimer : ControlLoopTimer ( closedLoopControlName == $event.getClosedLoopControlName(), requestID == $event.getRequestID().toString() )
+ then
+
+ Logger logger = LoggerFactory.getLogger(drools.getRule().getPackage());
+ logger.info("{}: {}: event={} manager={} clTimer={}",
+ $clName, $params.getPolicyName() + "." + drools.getRule().getName(),
+ $event, $manager, $clTimer);
+
+ try {
+ //
+ // Check which event this is.
+ //
+ ControlLoopEventManager.NEW_EVENT_STATUS eventStatus = $manager.onNewEvent($event);
+ //
+ // Check what kind of event this is
+ //
+ if (eventStatus == NEW_EVENT_STATUS.SUBSEQUENT_ONSET) {
+ //
+ // We don't care about subsequent onsets
+ //
+ logger.info("{}: {}: subsequent onset",
+ $clName, $params.getPolicyName() + "." + drools.getRule().getName());
+ retract($event);
+ return;
+ }
+ if (eventStatus == NEW_EVENT_STATUS.SYNTAX_ERROR) {
+ //
+ // Ignore any bad syntax events
+ //
+ logger.warn("{}: {}: syntax error",
+ $clName, $params.getPolicyName() + "." + drools.getRule().getName());
+ retract($event);
+ return;
+ }
+ //
+ // We only want the initial ONSET event in memory,
+ // all the other events need to be retracted to support
+ // cleanup and avoid the other rules being fired for this event.
+ //
+ if (eventStatus != NEW_EVENT_STATUS.FIRST_ONSET) {
+ logger.warn("{}: {}: no first onset",
+ $clName, $params.getPolicyName() + "." + drools.getRule().getName());
+ retract($event);
+ }
+
+ logger.debug("{}: {}: target={}", $clName,
+ $params.getPolicyName() + "." + drools.getRule().getName(), $event.getTarget());
+ //
+ // Now start seeing if we need to process this event
+ //
+
+ //
+ // Check if this is a Final Event
+ //
+ VirtualControlLoopNotification notification = $manager.isControlLoopFinal();
+
+
+ if (notification != null) {
+ //
+ // Its final, but are we waiting for abatement?
+ //
+ if ($manager.getNumAbatements() > 0) {
+ logger.info("{}: {}: abatement received for {}. Closing the control loop",
+ $clName, $params.getPolicyName() + "." + drools.getRule().getName(),
+ $event.getRequestID());
+ notification.setFrom("policy");
+ notification.setPolicyName($params.getPolicyName() + "." + drools.getRule().getName());
+ notification.setPolicyScope($params.getPolicyScope());
+ notification.setPolicyVersion($params.getPolicyVersion());
+ //
+ // In this case, we are done
+ //
+ PolicyEngine.manager.deliver("POLICY-CL-MGT", notification);
+ //
+ // Unlock the target
+ //
+ TargetLock lock = $manager.unlockCurrentOperation();
+ if (lock != null) {
+ logger.debug("{}: {}: retracting lock=", $clName,
+ $params.getPolicyName() + "." + drools.getRule().getName(), lock);
+ retract(lock);
+ }
+ //
+ // Retract everything from memory
+ //
+ logger.info("{}: {}: retracting onset, manager, and timer",
+ $clName, $params.getPolicyName() + "." + drools.getRule().getName());
+
+ retract($manager.getOnsetEvent());
+ retract($manager);
+ retract($clTimer);
+ //
+ // TODO - what if we get subsequent Events for this RequestID?
+ // By default, it will all start over again. May be confusing for Ruby.
+ // Or, we could track this and then subsequently ignore the events
+ //
+ } else {
+ //
+ // Check whether we need to wait for abatement
+ //
+ if ($manager.getProcessor().getControlLoop().getAbatement() == true && notification.getNotification() == ControlLoopNotificationType.FINAL_SUCCESS) {
+ logger.info("{}: {}: waiting for abatement ..",
+ $clName, $params.getPolicyName() + "." + drools.getRule().getName());
+ } else {
+ logger.info("{}: {}: no abatement expect for {}. Closing the control loop",
+ $clName, $params.getPolicyName() + "." + drools.getRule().getName(),
+ $event.getRequestID());
+
+ notification.setFrom("policy");
+ notification.setPolicyName($params.getPolicyName() + "." + drools.getRule().getName());
+ notification.setPolicyScope($params.getPolicyScope());
+ notification.setPolicyVersion($params.getPolicyVersion());
+
+ //
+ // In this case, we are done
+ //
+ PolicyEngine.manager.deliver("POLICY-CL-MGT", notification);
+ //
+ // Unlock the target
+ //
+ TargetLock lock = $manager.unlockCurrentOperation();
+ if (lock != null) {
+ logger.debug("{}: {}: retracting lock=", $clName,
+ $params.getPolicyName() + "." + drools.getRule().getName(), lock);
+ retract(lock);
+ }
+ //
+ // Retract everything from memory
+ //
+ logger.info("{}: {}: retracting onset, manager, and timer",
+ $clName, $params.getPolicyName() + "." + drools.getRule().getName());
+
+ retract($manager.getOnsetEvent());
+ retract($manager);
+ retract($clTimer);
+ }
+ }
+ } else {
+ //
+ // NOT final, so let's ask for the next operation
+ //
+ ControlLoopOperationManager operation = $manager.processControlLoop();
+ if (operation != null) {
+ //
+ // Let's ask for a lock right away
+ //
+ LockResult<GuardResult, TargetLock> result = $manager.lockCurrentOperation();
+ logger.info("{}: {}: guard lock acquired={}",
+ $clName, $params.getPolicyName() + "." + drools.getRule().getName(),
+ result.getB());
+ if (result.getA().equals(GuardResult.LOCK_ACQUIRED)) {
+ //
+ // insert the operation into memory
+ //
+ insert(operation);
+
+ //
+ // insert operation timeout object
+ //
+ OperationTimer opTimer = new OperationTimer();
+ opTimer.setClosedLoopControlName($event.getClosedLoopControlName());
+ opTimer.setRequestID($event.getRequestID().toString());
+ opTimer.setDelay(operation.getOperationTimeout().toString() + "s");
+ insert(opTimer);
+
+ //
+ // Insert lock into memory
+ //
+ insert(result.getB());
+ }
+ else {
+ logger.debug("The target resource {} is already processing",
+ $event.getAAI().get($event.getTarget()));
+ notification = new VirtualControlLoopNotification($event);
+ notification.setNotification(ControlLoopNotificationType.REJECTED);
+ notification.setMessage("The target " + $event.getAAI().get($event.getTarget()) + " is already locked");
+ notification.setFrom("policy");
+ notification.setPolicyName($params.getPolicyName() + "." + drools.getRule().getName());
+ notification.setPolicyScope($params.getPolicyScope());
+ notification.setPolicyVersion($params.getPolicyVersion());
+
+ PolicyEngine.manager.deliver("POLICY-CL-MGT", notification);
+
+ retract($event);
+ retract($manager);
+ retract($clTimer);
+ }
+ logger.info("{}: {}: starting operation={}",
+ $clName, $params.getPolicyName() + "." + drools.getRule().getName(),
+ operation);
+ } else {
+ //
+ // Probably waiting for abatement
+ //
+ logger.info("{}: {}: no operation, probably waiting for abatement",
+ $clName, $params.getPolicyName() + "." + drools.getRule().getName());
+ }
+ }
+ } catch (Exception e) {
+ logger.warn("{}: {}: unexpected",
+ $clName,
+ $params.getPolicyName() + "." + drools.getRule().getName(), e);
+
+ VirtualControlLoopNotification notification = new VirtualControlLoopNotification($event);
+ notification.setNotification(ControlLoopNotificationType.FINAL_FAILURE);
+ notification.setMessage(e.getMessage());
+ notification.setFrom("policy");
+ notification.setPolicyName($params.getPolicyName() + "." + drools.getRule().getName());
+ notification.setPolicyScope($params.getPolicyScope());
+ notification.setPolicyVersion($params.getPolicyVersion());
+
+ PolicyEngine.manager.deliver("POLICY-CL-MGT", notification);
+
+ retract($event);
+ retract($manager);
+ retract($clTimer);
+ }
+
+end
+
+/*
+*
+* Guard Permitted, let's send request to the actor.
+*
+*/
+rule "EVENT.MANAGER.OPERATION.LOCKED.GUARD_PERMITTED"
+ when
+ $params : ControlLoopParams( $clName : getClosedLoopControlName() )
+ $event : VirtualControlLoopEvent( closedLoopControlName == $clName )
+ $manager : ControlLoopEventManager( closedLoopControlName == $event.getClosedLoopControlName(), requestID == $event.getRequestID() )
+ $operation : ControlLoopOperationManager( onset.closedLoopControlName == $event.getClosedLoopControlName(), onset.getRequestID() == $event.getRequestID(), "Permit".equalsIgnoreCase(getGuardApprovalStatus()) )
+ $lock : TargetLock (requestID == $event.getRequestID())
+ $opTimer : OperationTimer( closedLoopControlName == $event.getClosedLoopControlName(), requestID == $event.getRequestID().toString() )
+ then
+
+ Logger logger = LoggerFactory.getLogger(drools.getRule().getPackage());
+ logger.info("{}: {}: event={} manager={} operation={} lock={}",
+ $clName, $params.getPolicyName() + "." + drools.getRule().getName(),
+ $event, $manager, $operation, $lock);
+
+ Object request = null;
+ boolean caughtException = false;
+ try {
+ request = $operation.startOperation($event);
+ }
+ catch (ControlLoopException e) {
+ String msg = e.getMessage();
+ logger.warn("{}: {}: operation={}: AAI failure: {}",
+ $clName, $params.getPolicyName() + "." + drools.getRule().getName(),
+ $operation, msg, e);
+ $operation.setOperationHasException(msg);
+ retract($opTimer);
+ retract($operation);
+ caughtException = true;
+ }
+
+ // Having the modify statement in the catch clause doesn't work for whatever reason
+ if (caughtException) {
+ modify($manager) {finishOperation($operation)};
+ }
+ else if (request != null) {
+ logger.debug("{}: {}: starting operation ..",
+ $clName, $params.getPolicyName() + "." + drools.getRule().getName());
+ //
+ // Tell interested parties we are performing this Operation
+ //
+ VirtualControlLoopNotification notification = new VirtualControlLoopNotification($event);
+ notification.setNotification(ControlLoopNotificationType.OPERATION);
+ notification.setMessage($operation.getOperationMessage());
+ notification.setHistory($operation.getHistory());
+ notification.setFrom("policy");
+ notification.setPolicyName($params.getPolicyName() + "." + drools.getRule().getName());
+ notification.setPolicyScope($params.getPolicyScope());
+ notification.setPolicyVersion($params.getPolicyVersion());
+
+ PolicyEngine.manager.deliver("POLICY-CL-MGT", notification);
+
+ switch ($operation.policy.getActor()){
+
+ case "APPC":
+
+ if (request instanceof Request) {
+ PolicyEngine.manager.deliver("APPC-CL", request);
+ }
+ else if (request instanceof LCMRequestWrapper) {
+ PolicyEngine.manager.deliver("APPC-LCM-READ", request);
+ }
+ break;
+ case "SO":
+ // at this point the AAI named query request should have already been made, the response recieved and used
+ // in the construction of the SO Request which is stored in operationRequest
+
+ if(request instanceof SORequest) {
+ // Call SO. The response will be inserted into memory once it's received
+ SOActorServiceProvider.sendRequest($event.getRequestID().toString(), drools.getWorkingMemory(), request);
+ }
+ break;
+ case "VFC":
+ if (request instanceof VFCRequest) {
+ // Start VFC thread
+ Thread t = new Thread(new VFCManager(drools.getWorkingMemory(), (VFCRequest)request));
+ t.start();
+ }
+ break;
+ }
+ } else {
+ //
+ // What happens if its null?
+ //
+ logger.warn("{}: {}: unexpected null operation request",
+ $clName,
+ $params.getPolicyName() + "." + drools.getRule().getName());
+ if ("SO".equals($operation.policy.getActor())) {
+ retract($opTimer);
+ retract($operation);
+ modify($manager) {finishOperation($operation)};
+ }
+ else if ("vfc".equalsIgnoreCase($operation.policy.getActor())) {
+ retract($opTimer);
+ retract($operation);
+ modify($manager) {finishOperation($operation)};
+ }
+
+ }
+end
+
+
+/*
+*
+* We were able to acquire a lock so now let's ask Xacml Guard whether
+* we are allowed to proceed with the request to the actor.
+*
+*/
+rule "EVENT.MANAGER.OPERATION.LOCKED.GUARD_NOT_YET_QUERIED"
+ when
+ $params : ControlLoopParams( $clName : getClosedLoopControlName() )
+ $event : VirtualControlLoopEvent( closedLoopControlName == $clName )
+ $manager : ControlLoopEventManager( closedLoopControlName == $event.getClosedLoopControlName(), requestID == $event.getRequestID() )
+ $operation : ControlLoopOperationManager( onset.closedLoopControlName == $event.getClosedLoopControlName(), onset.getRequestID() == $event.getRequestID(), getGuardApprovalStatus() == "NONE" )
+ $lock : TargetLock (requestID == $event.getRequestID())
+ then
+
+ Logger logger = LoggerFactory.getLogger(drools.getRule().getPackage());
+ logger.info("{}: {}: event={} manager={} operation={} lock={}",
+ $clName, $params.getPolicyName() + "." + drools.getRule().getName(),
+ $event, $manager, $operation, $lock);
+
+ //
+ // Sending notification that we are about to query Guard ("DB write - start operation")
+ //
+ VirtualControlLoopNotification notification = new VirtualControlLoopNotification($event);
+ notification.setNotification(ControlLoopNotificationType.OPERATION);
+ notification.setMessage("Sending guard query for " + $operation.policy.getActor() + " " + $operation.policy.getRecipe());
+ notification.setHistory($operation.getHistory());
+ notification.setFrom("policy");
+ notification.setPolicyName($params.getPolicyName() + "." + drools.getRule().getName());
+ notification.setPolicyScope($params.getPolicyScope());
+ notification.setPolicyVersion($params.getPolicyVersion());
+
+ PolicyEngine.manager.deliver("POLICY-CL-MGT", notification);
+
+ //
+ // Now send Guard Request to XACML Guard. In order to bypass the call to Guard,
+ // just change guardEnabled to false.
+ //
+ // In order to use REST XACML, provide a URL instead of "" as a second argument
+ // to the CallGuardTask() and set the first argument to null
+ // (instead of XacmlPdpEngine).
+ //
+
+ // NOTE: The environment properties uses "guard.disabled" but the boolean is guardEnabled
+ boolean guardEnabled = "false".equalsIgnoreCase(PolicyEngine.manager.getEnvironmentProperty("guard.disabled"));
+
+ if(guardEnabled){
+
+ Thread t = new Thread(new org.onap.policy.guard.CallGuardTask(
+ drools.getWorkingMemory(),
+ $event.getClosedLoopControlName(),
+ $operation.policy.getActor().toString(),
+ $operation.policy.getRecipe(),
+ $operation.getTargetEntity(),
+ $event.getRequestID().toString()
+ ));
+ t.start();
+ }
+ else{
+ insert(new PolicyGuardResponse("Permit", $event.getRequestID(), $operation.policy.getRecipe()));
+ }
+
+end
+
+//
+// This rule will be triggered when a thread talking to the XACML Guard inserts a
+// guardResponse object into the working memory
+//
+rule "GUARD.RESPONSE"
+ when
+ $params : ControlLoopParams( $clName : getClosedLoopControlName() )
+ $event : VirtualControlLoopEvent( closedLoopControlName == $clName, closedLoopEventStatus == ControlLoopEventStatus.ONSET )
+ $manager : ControlLoopEventManager( closedLoopControlName == $event.getClosedLoopControlName(), requestID == $event.getRequestID() )
+ $operation : ControlLoopOperationManager( onset.closedLoopControlName == $event.getClosedLoopControlName(), onset.getRequestID() == $event.getRequestID() )
+ $lock : TargetLock (requestID == $event.getRequestID())
+ $opTimer : OperationTimer( closedLoopControlName == $event.getClosedLoopControlName(), requestID == $event.getRequestID().toString() )
+ $guardResponse : PolicyGuardResponse(requestID == $event.getRequestID(), $operation.policy.recipe == operation)
+ then
+
+ Logger logger = LoggerFactory.getLogger(drools.getRule().getPackage());
+ logger.info("{}: {}: event={} manager={} operation={} lock={} opTimer={} guardResponse={}",
+ $clName, $params.getPolicyName() + "." + drools.getRule().getName(),
+ $event, $manager, $operation, $lock, $opTimer, $guardResponse);
+
+
+ //we will permit the operation if there was no Guard for it
+ if("Indeterminate".equalsIgnoreCase($guardResponse.getResult())){
+ $guardResponse.setResult("Permit");
+ }
+
+ //
+ // This notification has Guard result in "message". ("DB write - end operation in case of Guard Deny")
+ //
+ VirtualControlLoopNotification notification = new VirtualControlLoopNotification($event);
+ notification.setNotification(ControlLoopNotificationType.OPERATION);
+ notification.setMessage("Guard result for " + $operation.policy.getActor() + " " + $operation.policy.getRecipe() + " is " + $guardResponse.getResult());
+ notification.setHistory($operation.getHistory());
+ notification.setFrom("policy");
+ notification.setPolicyName($params.getPolicyName() + "." + drools.getRule().getName());
+ notification.setPolicyScope($params.getPolicyScope());
+ notification.setPolicyVersion($params.getPolicyVersion());
+
+ PolicyEngine.manager.deliver("POLICY-CL-MGT", notification);
+
+ if("Permit".equalsIgnoreCase($guardResponse.getResult())){
+
+ modify($operation){setGuardApprovalStatus($guardResponse.getResult())};
+ }
+ else {
+ //This is the Deny case
+ $operation.startOperation($event);
+ $operation.setOperationHasGuardDeny();
+ retract($opTimer);
+ retract($operation);
+ modify($manager) {finishOperation($operation)};
+ }
+
+ retract($guardResponse);
+
+end
+
+/*
+*
+* This rule responds to APPC Response Events
+*
+* I would have like to be consistent and write the Response like this:
+* $response : Response( CommonHeader.RequestID == $onset.getRequestID() )
+*
+* However, no compile error was given. But a runtime error was given. I think
+* because drools is confused between the classname CommonHeader vs the property CommonHeader.
+*
+*/
+rule "APPC.RESPONSE"
+ when
+ $params : ControlLoopParams( $clName : getClosedLoopControlName() )
+ $event : VirtualControlLoopEvent( closedLoopControlName == $clName, closedLoopEventStatus == ControlLoopEventStatus.ONSET )
+ $manager : ControlLoopEventManager( closedLoopControlName == $event.getClosedLoopControlName(), requestID == $event.getRequestID() )
+ $operation : ControlLoopOperationManager( onset.closedLoopControlName == $event.getClosedLoopControlName(), onset.getRequestID() == $event.getRequestID() )
+ $opTimer : OperationTimer( closedLoopControlName == $event.getClosedLoopControlName(), requestID == $event.getRequestID().toString() )
+ $lock : TargetLock (requestID == $event.getRequestID())
+ $response : Response( getCommonHeader().RequestID == $event.getRequestID() )
+ then
+
+ Logger logger = LoggerFactory.getLogger(drools.getRule().getPackage());
+ logger.info("{}: {}", $clName, $params.getPolicyName() + "." + drools.getRule().getName());
+ logger.debug("{}: {}: event={} manager={} operation={} lock={} opTimer={} response={}",
+ $clName, $params.getPolicyName() + "." + drools.getRule().getName(),
+ $event, $manager, $operation, $lock, $opTimer, $response);
+ //
+ // Get the result of the operation
+ //
+ PolicyResult policyResult = $operation.onResponse($response);
+ if (policyResult != null) {
+ logger.debug("{}: {}: operation finished - result={}",
+ $clName, $params.getPolicyName() + "." + drools.getRule().getName(),
+ policyResult);
+ //
+ // This Operation has completed, construct a notification showing our results. (DB write - end operation)
+ //
+ VirtualControlLoopNotification notification = new VirtualControlLoopNotification($event);
+ notification.setFrom("policy");
+ notification.setPolicyName($params.getPolicyName() + "." + drools.getRule().getName());
+ notification.setPolicyScope($params.getPolicyScope());
+ notification.setPolicyVersion($params.getPolicyVersion());
+ notification.setMessage($operation.getOperationHistory());
+ notification.setHistory($operation.getHistory());
+ if (policyResult.equals(PolicyResult.SUCCESS)) {
+ notification.setNotification(ControlLoopNotificationType.OPERATION_SUCCESS);
+ //
+ // Let interested parties know
+ //
+ PolicyEngine.manager.deliver("POLICY-CL-MGT", notification);
+ } else {
+ notification.setNotification(ControlLoopNotificationType.OPERATION_FAILURE);
+ //
+ // Let interested parties know
+ //
+ PolicyEngine.manager.deliver("POLICY-CL-MGT", notification);
+ }
+ //
+ // Ensure the operation is complete
+ //
+ if ($operation.isOperationComplete() == true) {
+ //
+ // It is complete, remove it from memory
+ //
+ retract($operation);
+ //
+ // We must also retract the timer object
+ // NOTE: We could write a Rule to do this
+ //
+ retract($opTimer);
+ //
+ // Complete the operation
+ //
+ modify($manager) {finishOperation($operation)};
+ } else {
+ //
+ // Just doing this will kick off the LOCKED rule again
+ //
+ modify($operation) {};
+ }
+ } else {
+ //
+ // Its not finished yet (i.e. expecting more Response objects)
+ //
+ // Or possibly it is a leftover response that we timed the request out previously
+ //
+ }
+ //
+ // We are going to retract these objects from memory
+ //
+ retract($response);
+end
+
+/*
+*
+* The problem with Responses is that they don't have a controlLoopControlName
+* field in them, so the only way to attach them is via RequestID. If we have multiple
+* control loop .drl's loaded in the same container, we need to be sure the cleanup
+* rules don't remove Responses for other control loops.
+*
+*/
+rule "APPC.RESPONSE.CLEANUP"
+ when
+ $params : ControlLoopParams( $clName : getClosedLoopControlName() )
+ $response : Response($id : getCommonHeader().RequestID )
+ not ( VirtualControlLoopEvent( requestID == $id, closedLoopEventStatus == ControlLoopEventStatus.ONSET ) )
+ then
+
+ Logger logger = LoggerFactory.getLogger(drools.getRule().getPackage());
+ logger.info("{}: {}", $clName, $params.getPolicyName() + "." + drools.getRule().getName());
+ logger.debug("{}: {}: orphan appc response={}",
+ $clName, $params.getPolicyName() + "." + drools.getRule().getName(), $id);
+
+ //
+ // Retract it
+ //
+ retract($response);
+end
+
+/*
+*
+* This rule responds to APPC Response Events using the new LCM interface provided by appc
+*
+*/
+rule "APPC.LCM.RESPONSE"
+ when
+ $params : ControlLoopParams( $clName : getClosedLoopControlName() )
+ $event : VirtualControlLoopEvent( closedLoopControlName == $clName, closedLoopEventStatus == ControlLoopEventStatus.ONSET )
+ $manager : ControlLoopEventManager( closedLoopControlName == $event.getClosedLoopControlName(), requestID == $event.getRequestID() )
+ $operation : ControlLoopOperationManager( onset.closedLoopControlName == $event.getClosedLoopControlName(), onset.getRequestID() == $event.getRequestID() )
+ $opTimer : OperationTimer( closedLoopControlName == $event.getClosedLoopControlName(), requestID == $event.getRequestID().toString() )
+ $lock : TargetLock (requestID == $event.getRequestID())
+ $response : LCMResponseWrapper( getBody().getCommonHeader().getRequestId() == $event.getRequestID() )
+ then
+
+ Logger logger = LoggerFactory.getLogger(drools.getRule().getPackage());
+ logger.info("{}: {}", $clName, $params.getPolicyName() + "." + drools.getRule().getName());
+ logger.debug("{}: {}: event={} manager={} operation={} lock={} opTimer={} response={}",
+ $clName, $params.getPolicyName() + "." + drools.getRule().getName(),
+ $event, $manager, $operation, $lock, $operation, $opTimer, $response);
+
+ //
+ // Get the result of the operation
+ //
+ PolicyResult policyResult = $operation.onResponse($response);
+ if (policyResult != null) {
+ logger.debug("{}: {}: operation finished - result={}",
+ $clName, $params.getPolicyName() + "." + drools.getRule().getName(),
+ policyResult);
+
+ //
+ // This Operation has completed, construct a notification showing our results. (DB write - end operation)
+ //
+ VirtualControlLoopNotification notification = new VirtualControlLoopNotification($event);
+ notification.setFrom("policy");
+ notification.setPolicyName($params.getPolicyName() + "." + drools.getRule().getName());
+ notification.setPolicyScope($params.getPolicyScope());
+ notification.setPolicyVersion($params.getPolicyVersion());
+ notification.setMessage($operation.getOperationHistory());
+ notification.setHistory($operation.getHistory());
+ if (policyResult.equals(PolicyResult.SUCCESS)) {
+ notification.setNotification(ControlLoopNotificationType.OPERATION_SUCCESS);
+ } else {
+ notification.setNotification(ControlLoopNotificationType.OPERATION_FAILURE);
+ }
+ PolicyEngine.manager.deliver("POLICY-CL-MGT", notification);
+ //
+ // Ensure the operation is complete
+ //
+ if ($operation.isOperationComplete() == true) {
+ //
+ // It is complete, remove it from memory
+ //
+ retract($operation);
+ //
+ // We must also retract the timer object
+ // NOTE: We could write a Rule to do this
+ //
+ retract($opTimer);
+ //
+ // Complete the operation
+ //
+ modify($manager) {finishOperation($operation)};
+ } else {
+ //
+ // Just doing this will kick off the LOCKED rule again
+ //
+ modify($operation) {};
+ }
+ } else {
+ //
+ // Its not finished yet (i.e. expecting more Response objects)
+ //
+ // Or possibly it is a leftover response that we timed the request out previously
+ //
+ }
+ //
+ // We are going to retract these objects from memory
+ //
+ retract($response);
+end
+
+/*
+*
+* Clean Up any lingering LCM reponses
+*
+*/
+rule "APPC.LCM.RESPONSE.CLEANUP"
+ when
+ $params : ControlLoopParams( $clName : getClosedLoopControlName() )
+ $response : LCMResponseWrapper($id : getBody().getCommonHeader().getRequestId )
+ not ( VirtualControlLoopEvent( requestID == $id, closedLoopEventStatus == ControlLoopEventStatus.ONSET ) )
+ then
+
+ Logger logger = LoggerFactory.getLogger(drools.getRule().getPackage());
+ logger.info("{}: {}", $clName, $params.getPolicyName() + "." + drools.getRule().getName());
+ logger.debug("{}: {}: orphan appc response={}",
+ $clName, $params.getPolicyName() + "." + drools.getRule().getName(), $id);
+ //
+ // Retract it
+ //
+ retract($response);
+end
+
+/*
+*
+* This rule responds to SO Response Events
+*
+*/
+rule "SO.RESPONSE"
+ when
+ $params : ControlLoopParams( $clName : getClosedLoopControlName() )
+ $event : VirtualControlLoopEvent( closedLoopControlName == $clName, closedLoopEventStatus == ControlLoopEventStatus.ONSET )
+ $manager : ControlLoopEventManager( closedLoopControlName == $event.getClosedLoopControlName() )
+ $operation : ControlLoopOperationManager( onset.closedLoopControlName == $event.getClosedLoopControlName(), onset.getRequestID() == $event.getRequestID() )
+ $opTimer : OperationTimer( closedLoopControlName == $event.getClosedLoopControlName(), requestID == $event.getRequestID().toString() )
+ $lock : TargetLock (requestID == $event.getRequestID())
+ $response : SOResponseWrapper(requestID.toString() == $event.getRequestID().toString() )
+ then
+
+ Logger logger = LoggerFactory.getLogger(drools.getRule().getPackage());
+ logger.info("{}: {}", $clName, $params.getPolicyName() + "." + drools.getRule().getName());
+ logger.debug("{}: {}: event={} manager={} operation={} lock={} opTimer={} response={}",
+ $clName, $params.getPolicyName() + "." + drools.getRule().getName(),
+ $event, $manager, $operation, $lock, $operation, $opTimer, $response);
+
+ // Get the result of the operation
+ //
+ PolicyResult policyResult = $operation.onResponse($response);
+ if (policyResult != null) {
+ logger.debug("{}: {}: operation finished - result={}",
+ $clName, $params.getPolicyName() + "." + drools.getRule().getName(),
+ policyResult);
+
+ //
+ // This Operation has completed, construct a notification showing our results
+ //
+ VirtualControlLoopNotification notification = new VirtualControlLoopNotification($event);
+ notification.setFrom("policy");
+ notification.setPolicyName($params.getPolicyName() + "." + drools.getRule().getName());
+ notification.setPolicyScope($params.getPolicyScope());
+ notification.setPolicyVersion($params.getPolicyVersion());
+ notification.setMessage($operation.getOperationHistory());
+ notification.setHistory($operation.getHistory());
+ if (policyResult.equals(PolicyResult.SUCCESS)) {
+ notification.setNotification(ControlLoopNotificationType.OPERATION_SUCCESS);
+ } else {
+ notification.setNotification(ControlLoopNotificationType.OPERATION_FAILURE);
+
+ }
+ PolicyEngine.manager.deliver("POLICY-CL-MGT", notification);
+ //
+ // Ensure the operation is complete
+ //
+ if ($operation.isOperationComplete() == true) {
+ //
+ // It is complete, remove it from memory
+ //
+ retract($operation);
+ //
+ // We must also retract the timer object
+ // NOTE: We could write a Rule to do this
+ //
+ retract($opTimer);
+ //
+ // Complete the operation
+ //
+ modify($manager) {finishOperation($operation)};
+ } else {
+ //
+ // Just doing this will kick off the LOCKED rule again
+ //
+ modify($operation) {};
+ }
+ } else {
+ //
+ // Its not finished yet (i.e. expecting more Response objects)
+ //
+ // Or possibly it is a leftover response that we timed the request out previously
+ //
+ }
+ //
+ // We are going to retract these objects from memory
+ //
+ retract($response);
+
+end
+
+/*
+*
+* This rule responds to VFC Response Events
+*
+*/
+rule "VFC.RESPONSE"
+ when
+ $params : ControlLoopParams( $clName : getClosedLoopControlName() )
+ $event : VirtualControlLoopEvent( closedLoopControlName == $clName, closedLoopEventStatus == ControlLoopEventStatus.ONSET )
+ $manager : ControlLoopEventManager( closedLoopControlName == $event.getClosedLoopControlName() )
+ $operation : ControlLoopOperationManager( onset.closedLoopControlName == $event.getClosedLoopControlName(), onset.getRequestID() == $event.getRequestID() )
+ $opTimer : OperationTimer( closedLoopControlName == $event.getClosedLoopControlName(), requestID == $event.getRequestID().toString() )
+ $lock : TargetLock (requestID == $event.getRequestID())
+ $response : VFCResponse( requestId.toString() == $event.getRequestID().toString() )
+ then
+ Logger logger = LoggerFactory.getLogger(drools.getRule().getPackage());
+ logger.info("{}: {}", $clName, $params.getPolicyName() + "." + drools.getRule().getName());
+ logger.debug("{}: {}: event={} manager={} operation={} lock={} opTimer={} response={}",
+ $clName, $params.getPolicyName() + "." + drools.getRule().getName(),
+ $event, $manager, $operation, $lock, $operation, $opTimer, $response);
+
+ // Get the result of the operation
+ //
+ PolicyResult policyResult = $operation.onResponse($response);
+ if (policyResult != null) {
+ //
+ // This Operation has completed, construct a notification showing our results
+ //
+ VirtualControlLoopNotification notification = new VirtualControlLoopNotification($event);
+ notification.setFrom("policy");
+ notification.setPolicyName($params.getPolicyName() + "." + drools.getRule().getName());
+ notification.setPolicyScope($params.getPolicyScope());
+ notification.setPolicyVersion($params.getPolicyVersion());
+ notification.setMessage($operation.getOperationHistory());
+ notification.setHistory($operation.getHistory());
+ //
+ // Ensure the operation is complete
+ //
+ if ($operation.isOperationComplete() == true) {
+ //
+ // It is complete, remove it from memory
+ //
+ retract($operation);
+ //
+ // We must also retract the timer object
+ // NOTE: We could write a Rule to do this
+ //
+ retract($opTimer);
+ //
+ // Complete the operation
+ //
+ modify($manager) {finishOperation($operation)};
+ } else {
+ //
+ // Just doing this will kick off the LOCKED rule again
+ //
+ modify($operation) {};
+ }
+ } else {
+ //
+ // Its not finished yet (i.e. expecting more Response objects)
+ //
+ // Or possibly it is a leftover response that we timed the request out previously
+ //
+ }
+ //
+ // We are going to retract these objects from memory
+ //
+ retract($response);
+
+end
+
+/*
+*
+* This is the timer that manages the timeout for an individual operation.
+*
+*/
+rule "EVENT.MANAGER.OPERATION.TIMEOUT"
+ timer (expr: $to )
+ when
+ $params : ControlLoopParams( $clName : getClosedLoopControlName() )
+ $event : VirtualControlLoopEvent( closedLoopControlName == $clName )
+ $manager : ControlLoopEventManager( closedLoopControlName == $event.getClosedLoopControlName(), requestID == $event.getRequestID() )
+ $operation : ControlLoopOperationManager( onset.closedLoopControlName == $event.getClosedLoopControlName(), onset.getRequestID() == $event.getRequestID() )
+ $opTimer : OperationTimer( closedLoopControlName == $event.getClosedLoopControlName(), requestID == $event.getRequestID().toString(), $to : getDelay() )
+ $lock : TargetLock (requestID == $event.getRequestID())
+ then
+
+ Logger logger = LoggerFactory.getLogger(drools.getRule().getPackage());
+ logger.info("{}: {}", $clName, $params.getPolicyName() + "." + drools.getRule().getName());
+ logger.debug("{}: {}: event={} manager={} operation={} lock={} opTimer={}",
+ $clName, $params.getPolicyName() + "." + drools.getRule().getName(),
+ $event, $manager, $operation, $lock, $operation, $opTimer);
+
+ //
+ // Tell it its timed out
+ //
+ $operation.setOperationHasTimedOut();
+ //
+ // Create a notification for it ("DB Write - end operation")
+ //
+ VirtualControlLoopNotification notification = new VirtualControlLoopNotification($event);
+ notification.setFrom("policy");
+ notification.setPolicyName($params.getPolicyName() + "." + drools.getRule().getName());
+ notification.setPolicyScope($params.getPolicyScope());
+ notification.setPolicyVersion($params.getPolicyVersion());
+ notification.setNotification(ControlLoopNotificationType.OPERATION_FAILURE);
+ notification.setMessage($operation.getOperationHistory());
+ notification.setHistory($operation.getHistory());
+ //
+ // Let interested parties know
+ //
+ PolicyEngine.manager.deliver("POLICY-CL-MGT", notification);
+ //
+ // Get rid of the timer
+ //
+ retract($opTimer);
+ //
+ // Ensure the operation is complete
+ //
+ if ($operation.isOperationComplete() == true) {
+ //
+ // It is complete, remove it from memory
+ //
+ retract($operation);
+ //
+ // Complete the operation
+ //
+ modify($manager) {finishOperation($operation)};
+ } else {
+ //
+ // Just doing this will kick off the LOCKED rule again
+ //
+ modify($operation) {};
+ }
+end
+
+/*
+*
+* This is the timer that manages the overall control loop timeout.
+*
+*/
+rule "EVENT.MANAGER.TIMEOUT"
+ timer (expr: $to )
+ when
+ $params : ControlLoopParams( $clName : getClosedLoopControlName() )
+ $event : VirtualControlLoopEvent( closedLoopControlName == $clName )
+ $manager : ControlLoopEventManager( closedLoopControlName == $event.getClosedLoopControlName(), requestID == $event.getRequestID() )
+ $clTimer : ControlLoopTimer ( closedLoopControlName == $event.getClosedLoopControlName(), requestID == $event.getRequestID().toString(), $to : getDelay() )
+ $operations : LinkedList()
+ from collect( ControlLoopOperationManager( onset.closedLoopControlName == $event.getClosedLoopControlName(), onset.getRequestID() == $event.getRequestID() ) )
+ $opTimers : LinkedList()
+ from collect( OperationTimer( closedLoopControlName == $event.getClosedLoopControlName(), requestID == $event.getRequestID().toString() ) )
+ $locks : LinkedList()
+ from collect( TargetLock (requestID == $event.getRequestID()) )
+ then
+
+ Logger logger = LoggerFactory.getLogger(drools.getRule().getPackage());
+ logger.info("{}: {}", $clName, $params.getPolicyName() + "." + drools.getRule().getName());
+
+ if ($operations == null) {
+ logger.debug("{}: {}: event={} manager={} clTimer={} operations=0",
+ $clName, $params.getPolicyName() + "." + drools.getRule().getName(),
+ $event, $manager, $clTimer);
+ } else {
+ logger.debug("{}: {}: event={} manager={} clTimer={} operations={}",
+ $clName, $params.getPolicyName() + "." + drools.getRule().getName(),
+ $event, $manager, $clTimer, $operations.size());
+ }
+ //
+ // Tell the Event Manager it has timed out
+ //
+ VirtualControlLoopNotification notification = $manager.setControlLoopTimedOut();
+ if (notification != null) {
+ notification.setFrom("policy");
+ notification.setPolicyName($params.getPolicyName() + "." + drools.getRule().getName());
+ notification.setPolicyScope($params.getPolicyScope());
+ notification.setPolicyVersion($params.getPolicyVersion());
+ //
+ // Let interested parties know
+ //
+ PolicyEngine.manager.deliver("POLICY-CL-MGT", notification);
+ }
+ //
+ // Retract EVERYTHING
+ //
+ retract($event);
+ retract($manager);
+ retract($clTimer);
+ if ($operations != null && $operations.size() > 0) {
+ Iterator<ControlLoopOperationManager> iter = $operations.iterator();
+ while (iter.hasNext()) {
+ ControlLoopOperationManager manager = iter.next();
+ retract(manager);
+ }
+ }
+ if ($opTimers != null && $opTimers.size() > 0) {
+ Iterator<OperationTimer> iter = $opTimers.iterator();
+ while (iter.hasNext()) {
+ OperationTimer opTimer = iter.next();
+ retract(opTimer);
+ }
+ }
+ if ($locks != null && $locks.size() > 0) {
+ Iterator<TargetLock> iter = $locks.iterator();
+ while (iter.hasNext()) {
+ TargetLock lock = iter.next();
+ //
+ // Ensure we release the lock
+ //
+ PolicyGuard.unlockTarget(lock);
+ //
+ //
+ //
+ retract(lock);
+ }
+ }
+end
+
+/*
+*
+* This rule will clean up any rogue onsets where there is no
+* ControlLoopParams object corresponding to the onset event.
+*
+*/
+rule "EVENT.CLEANUP"
+ when
+ $event : VirtualControlLoopEvent( $clName: closedLoopControlName )
+ not ( ControlLoopParams( getClosedLoopControlName() == $clName) )
+ then
+
+ Logger logger = LoggerFactory.getLogger(drools.getRule().getPackage());
+ logger.info("{}: {}", $clName, drools.getRule().getName());
+ logger.debug("{}: {}: orphan onset event={}",
+ $clName, drools.getRule().getName(), $event);
+
+ retract($event);
+end
\ No newline at end of file
Code Review / policy / drools-applications.git / commitdiff