+++ /dev/null
-/*
- * AT&T - PROPRIETARY
- * THIS FILE CONTAINS PROPRIETARY INFORMATION OF
- * AT&T AND IS NOT TO BE DISCLOSED OR USED EXCEPT IN
- * ACCORDANCE WITH APPLICABLE AGREEMENTS.
- *
- * Copyright (c) 2016 AT&T Knowledge Ventures
- * Unpublished and Not for Publication
- * All Rights Reserved
- */
-package com.att.ecomp.policy.controlloop;
-
-import com.att.ecomp.policy.controlloop.ATTControlLoopEvent;
-import org.openecomp.policy.controlloop.VirtualControlLoopEvent;
-import org.openecomp.policy.controlloop.VirtualControlLoopNotification;
-import org.openecomp.policy.controlloop.ControlLoopEventStatus;
-import com.att.ecomp.policy.controlloop.ATTControlLoopNotification;
-import org.openecomp.policy.controlloop.ControlLoopNotificationType;
-import com.att.ecomp.policy.controlloop.ControlLoopLogger;
-import com.att.ecomp.policy.controlloop.policy.PolicyResult;
-import com.att.ecomp.policy.controlloop.eventmanager.ControlLoopEventManager;
-import com.att.ecomp.policy.controlloop.eventmanager.ControlLoopEventManager.NEW_EVENT_STATUS;
-import com.att.ecomp.policy.controlloop.eventmanager.ControlLoopOperationManager;
-import org.openecomp.policy.appc.Request;
-import org.openecomp.policy.appc.Response;
-import org.openecomp.policy.appc.CommonHeader;
-import com.att.ecomp.policy.guard.PolicyGuard;
-import com.att.ecomp.policy.guard.PolicyGuard.LockResult;
-import com.att.ecomp.policy.guard.TargetLock;
-import com.att.ecomp.policy.guard.GuardResult;
-import com.att.ecomp.policy.guard.PolicyGuardRequest;
-import com.att.ecomp.policy.guard.PolicyGuardResponse;
-import com.att.ecomp.policy.guard.PolicyGuardXacmlRequestAttributes;
-import com.att.research.xacml.api.pdp.PDPEngine;
-import com.att.research.xacml.std.annotations.RequestParser;
-import com.att.ecomp.policy.guard.PolicyGuardXacmlHelper;
-import com.att.ecomp.policy.controlloop.policy.ControlLoopPolicy;
-import com.att.ecomp.policy.controlloop.policy.Policy;
-import java.net.URLDecoder;
-import org.eclipse.persistence.exceptions.DatabaseException;
-
-//
-// REPLACE THESE WITH PRODUCTION VERSIONS
-//
-import com.att.ecomp.policy.controlloop.ControlLoopLogger;
-import com.att.ecomp.policy.drools.PolicyEngine;
-import org.yaml.snakeyaml.Yaml;
-import org.yaml.snakeyaml.constructor.Constructor;
-
-global ControlLoopLogger Logger;
-global PolicyEngine Engine;
-global PDPEngine XacmlPdpEngine;
-
-import java.time.Instant;
-import java.util.LinkedList;
-import java.util.Iterator;
-
-declare Params
- closedLoopControlName : String
- controlLoopYaml : String
-end
-
-declare EnbParams
- enbOperationsPeriodicTimer : String
-end
-
-
-declare OperationTimer
- closedLoopControlName : String
- requestID : String
- delay : String
-end
-
-declare ControlLoopTimer
- closedLoopControlName : String
- requestID : String
- delay : String
-end
-
-
-/*
-*
-* Called once and only once to insert the parameters into working memory for this Closed Loop policy.
-*
-*/
-rule "${policyName}.SETUP"
- when
- then
- //
- // Logging
- //
- Logger.info("------------------------------------------------------------------------------------------------");
- Logger.metrics(Instant.now() + " " + drools.getRule().getName() + " " + drools.getRule().getPackage());
- Params params = new Params();
- params.setClosedLoopControlName("${closedLoopControlName}");
- params.setControlLoopYaml("${controlLoopYaml}");
- insert(params);
- Logger.metrics("Inserted " + params);
- Logger.info("------------------------------------------------------------------------------------------------");
- EnbParams enbParams = new EnbParams();
-
- //
- //Fetching the eNodeB timer from the Yaml
- //
- Yaml yaml = new Yaml(new Constructor(ControlLoopPolicy.class));
- Object obj = yaml.load(URLDecoder.decode(params.getControlLoopYaml(), "UTF-8"));
-
- enbParams.setEnbOperationsPeriodicTimer("0s");
- for(Policy policy : ((ControlLoopPolicy)obj).policies){
- if(policy.actor.equals("APPC")){
- if(policy.payload != null){
- if(policy.payload.containsKey("enbOperationPeriodicTimer")){
- enbParams.setEnbOperationsPeriodicTimer(policy.payload.get("enbOperationPeriodicTimer"));
- }
- }
- break;
- }
- }
- insert(enbParams);
- System.out.println("################ got timer: " + enbParams.getEnbOperationsPeriodicTimer());
-
-end
-
-/*
-*
-* This rule responds to DCAE Events where there is no manager yet. Either it is
-* the first ONSET, or a subsequent badly formed Event (i.e. Syntax error, or is-closed-loop-disabled)
-*
-*/
-rule "${policyName}.EVENT"
- when
- $params : Params( getClosedLoopControlName() == "${closedLoopControlName}" )
- $event : ATTControlLoopEvent( closedLoopControlName == $params.getClosedLoopControlName() )
- not ( ControlLoopEventManager( closedLoopControlName == $event.closedLoopControlName, requestID == $event.requestID ) )
- then
- try {
- //
- // Logging
- //
- Logger.info("------------------------------------------------------------------------------------------------");
- Logger.metrics(Instant.now() + " " + drools.getRule().getName() + " " + drools.getRule().getPackage());
- //
- // Check the event, because we need it to not be null when
- // we create the ControlLoopEventManager. The ControlLoopEventManager
- // will do extra syntax checking as well check if the closed loop is disabled.
- //
- if ($event.requestID == null) {
- ATTControlLoopNotification notification = new ATTControlLoopNotification($event);
- notification.notification = ControlLoopNotificationType.REJECTED;
- notification.from = "policy";
- notification.message = "Missing requestID";
- notification.policyName = drools.getRule().getName();
- notification.policyScope = "${policyScope}";
- notification.policyVersion = "${policyVersion}";
- //
- // Let interested parties know
- //
- Engine.deliver("UEB", "POLICY-CL-MGT", notification);
- //
- // Retract it from memory
- //
- retract($event);
- } else {
- //
- // Create an EventManager
- //
- ControlLoopEventManager manager = new ControlLoopEventManager($params.getClosedLoopControlName(), $event.requestID);
- //
- // Determine if EventManager can actively process the event (i.e. syntax, is_closed_loop_disabled checks etc.)
- //
- VirtualControlLoopNotification notification = manager.activate($params.getControlLoopYaml(), $event);
- notification.from = "pdp-0001-controller=controlloop"; // Engine.getInstanceName()
- notification.policyName = drools.getRule().getName();
- notification.policyScope = "${policyScope}";
- notification.policyVersion = "${policyVersion}";
- //
- // Are we actively pursuing this event?
- //
- if (notification.notification == ControlLoopNotificationType.ACTIVE) {
- //
- // Insert Event Manager into memory, this will now kick off processing.
- //
- insert(manager);
- //
- // Let interested parties know
- //
- Engine.deliver("UEB", "POLICY-CL-MGT", notification);
- //
- // Setup the Overall Control Loop timer
- //
- ControlLoopTimer clTimer = new ControlLoopTimer();
- clTimer.setClosedLoopControlName($event.closedLoopControlName);
- clTimer.setRequestID($event.requestID.toString());
- clTimer.setDelay(manager.getControlLoopTimeout(1500) + "s");
- //
- // Insert it
- //
- insert(clTimer);
- } else {
- //
- // Let interested parties know
- //
- Engine.deliver("UEB", "POLICY-CL-MGT", notification);
- //
- // Retract it from memory
- //
- retract($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) {
- e.printStackTrace();
- ATTControlLoopNotification notification = new ATTControlLoopNotification($event);
- notification.notification = ControlLoopNotificationType.REJECTED;
- notification.message = "Exception occurred " + e.getMessage();
- notification.policyName = drools.getRule().getName();
- notification.policyScope = "${policyScope}";
- notification.policyVersion = "${policyVersion}";
- //
- //
- //
- Engine.deliver("UEB", "POLICY-CL-MGT", notification);
- //
- // Retract the event
- //
- retract($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 "${policyName}.EVENT.MANAGER"
- when
- $params : Params( getClosedLoopControlName() == "${closedLoopControlName}" )
- $event : ATTControlLoopEvent( closedLoopControlName == $params.getClosedLoopControlName() )
- $manager : ControlLoopEventManager( closedLoopControlName == $event.closedLoopControlName, requestID == $event.requestID )
- $clTimer : ControlLoopTimer ( closedLoopControlName == $event.closedLoopControlName, requestID == $event.requestID.toString() )
- then
- //
- // Logging
- //
- Logger.info("------------------------------------------------------------------------------------------------");
- Logger.metrics(Instant.now() + " " + drools.getRule().getName() + " " + drools.getRule().getPackage());
- Logger.metrics($params);
- Logger.metrics($event);
- Logger.metrics($manager);
- Logger.metrics($clTimer);
- //
- // Check which event this is.
- //
- ControlLoopEventManager.NEW_EVENT_STATUS eventStatus = $manager.onNewEvent($event);
- Logger.info("Event status is " + eventStatus);
- //
- // Check what kind of event this is
- //
- if (eventStatus == NEW_EVENT_STATUS.SUBSEQUENT_ONSET) {
- //
- // We don't care about subsequent onsets
- //
- Logger.info("Retracting Subsequent Onset " + $event);
- retract($event);
- return;
- }
- if (eventStatus == NEW_EVENT_STATUS.SYNTAX_ERROR) {
- //
- // Ignore any bad syntax events
- //
- Logger.info("Retracting Bad Syntax Event " + $event);
- retract($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.info("Retracting Event " + $event);
- retract($event);
- }
- Logger.info("Checking due to new event " + $event.triggerID);
- //
- // Now start seeing if we need to process this event
- //
- try {
- //
- // Check if this is a Final Event
- //
- ATTControlLoopNotification notification = $manager.isControlLoopFinal();
-
-
- if (notification != null) {
- //
- // Its final, but are we waiting for abatement?
- //
- if ($manager.getNumAbatements() > 0) {
- Logger.info("Abatement received, close out the control loop for " + $event.requestID);
- notification.from = "policy";
- notification.policyName = drools.getRule().getName();
- notification.policyScope = "${policyScope}";
- notification.policyVersion = "${policyVersion}";
- //
- // In this case, we are done
- //
- Engine.deliver("UEB", "POLICY-CL-MGT", notification);
- //
- // Unlock the target
- //
- TargetLock lock = $manager.unlockCurrentOperation();
- if (lock != null) {
- System.out.println("retracting lock " + lock);
- retract(lock);
- }
- //
- // Retract everything from memory
- //
- System.out.println("retracting onset");
- retract($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().abatement == true && notification.notification == ControlLoopNotificationType.FINAL_SUCCESS) {
- Logger.info("Waiting for abatement.");
- } else {
- Logger.info("No abatement is promised to come, close out the control loop for " + $event.requestID);
- notification.from = "policy";
- notification.policyName = drools.getRule().getName();
- notification.policyScope = "${policyScope}";
- notification.policyVersion = "${policyVersion}";
- //
- // In this case, we are done
- //
- Engine.deliver("UEB", "POLICY-CL-MGT", notification);
- //
- // Unlock the target
- //
- TargetLock lock = $manager.unlockCurrentOperation();
- if (lock != null) {
- System.out.println("retracting lock " + lock);
- retract(lock);
- }
- //
- // Retract everything from memory
- //
- System.out.println("retracting onset");
- retract($manager.getOnsetEvent());
- retract($manager);
- retract($clTimer);
- }
- }
- } else {
- //
- // NOT final, so let's ask for the next operation
- //
- ControlLoopOperationManager operation = $manager.processControlLoop();
- if (operation != null) {
- Logger.info("starting a new operation" + operation);
- //
- // insert into memory
- //
- insert(operation);
- //
- // insert operation timeout object
- //
- OperationTimer opTimer = new OperationTimer();
- opTimer.setClosedLoopControlName($event.closedLoopControlName);
- opTimer.setRequestID($event.requestID.toString());
- opTimer.setDelay(operation.getOperationTimeout().toString() + "s");
- insert(opTimer);
-
- //
- // Let's ask for a lock right away
- //
- LockResult<GuardResult, TargetLock> result = $manager.lockCurrentOperation();
- if (result.getA().equals(GuardResult.LOCK_ACQUIRED)) {
- Logger.info("manager returned lock " + result.getB());
- //
- // Insert into memory
- //
- insert(result.getB());
- }
- } else {
- //
- // Probably waiting for abatement
- //
- }
- }
- } catch (Exception e) {
- e.printStackTrace();
- /*
- ATTControlLoopNotification notification = new ATTControlLoopNotification($event);
- notification.notification = ControlLoopNotificationType.REJECTED;
- notification.from = "policy";
- notification.message = "Exception occurred " + e.getMessage();
- notification.policyName = drools.getRule().getName();
- notification.policyScope = "${policyScope}";
- notification.policyVersion = "${policyVersion}";
- //
- //
- //
- Engine.deliver("UEB", "POLICY-CL-MGT", notification);
- //
- // TODO should we abort if we get an exception?
- //
- */
- }
-
-end
-
-/*
-*
-*
-*
-*/
-rule "${policyName}.PERIODIC_CHECK_OF_PENDING_ENB_OPERATIONS"
- timer (expr: "0s", $t)
- when
- $params : Params( getClosedLoopControlName() == "${closedLoopControlName}" )
- $enbParams : EnbParams($t : getEnbOperationsPeriodicTimer())
- $event : ATTControlLoopEvent( closedLoopControlName == $params.getClosedLoopControlName() )
- $operations : LinkedList(size() > 0)
- from collect( ControlLoopOperationManager( onset.closedLoopControlName == $event.closedLoopControlName) )
-
- then
- System.out.println(drools.getRule().getName() + " ********** operations size: " + $operations.size());
- //System.out.println(drools.getRule().getName());
- //The limt of 5 should also be defined in Yaml.
-end
-
-
-/*
-*
-*
-*
-*/
-rule "${policyName}.EVENT.MANAGER.OPERATION.NOT_LOCKED.TIMEOUT"
- timer (int: 5s 5s)
- when
- $params : Params( getClosedLoopControlName() == "${closedLoopControlName}" )
- $event : ATTControlLoopEvent( closedLoopControlName == $params.getClosedLoopControlName() )
- $manager : ControlLoopEventManager( closedLoopControlName == $event.closedLoopControlName, requestID == $event.requestID )
- $operation : ControlLoopOperationManager( onset.closedLoopControlName == $event.closedLoopControlName, onset.requestID == $event.requestID )
- not ( TargetLock (requestID == $event.requestID) )
- then
- //
- // Logging
- //
- Logger.info("------------------------------------------------------------------------------------------------");
- Logger.metrics(Instant.now() + " " + drools.getRule().getName() + " " + drools.getRule().getPackage());
- Logger.metrics($params);
- Logger.metrics($manager);
- Logger.metrics($operation);
- //
- // Need to ask for a Lock
- //
- LockResult<GuardResult, TargetLock> result = $manager.lockCurrentOperation();
- if (result.getA().equals(GuardResult.LOCK_ACQUIRED)) {
- Logger.info("Lock acquired: " + result.getB());
- //
- // Insert into memory
- //
- insert(result.getB());
- }
-end
-
-/*
-*
-* Guard Permitted, let's send request to the actor.
-*
-*/
-rule "${policyName}.EVENT.MANAGER.OPERATION.LOCKED.GUARD_PERMITTED"
- when
- $params : Params( getClosedLoopControlName() == "${closedLoopControlName}" )
- $event : ATTControlLoopEvent( closedLoopControlName == $params.getClosedLoopControlName() )
- $manager : ControlLoopEventManager( closedLoopControlName == $event.closedLoopControlName, requestID == $event.requestID )
- $operation : ControlLoopOperationManager( onset.closedLoopControlName == $event.closedLoopControlName, onset.requestID == $event.requestID, getGuardApprovalStatus() == "Permit" )
- $lock : TargetLock (requestID == $event.requestID)
- then
- //
- // Logging
- //
- Logger.info("------------------------------------------------------------------------------------------------");
- Logger.metrics(Instant.now() + " " + drools.getRule().getName() + " " + drools.getRule().getPackage());
- Logger.metrics($params);
- Logger.metrics($manager);
- Logger.metrics($operation);
- Logger.metrics($lock);
-
-
- Object request = $operation.getOperationRequest();
-
- if (request != null) {
- Logger.info("Starting operation");
- //
- // Tell interested parties we are performing this Operation
- //
- ATTControlLoopNotification notification = new ATTControlLoopNotification($event);
- notification.notification = ControlLoopNotificationType.OPERATION;
- notification.message = $operation.getOperationMessage();
- notification.history = $operation.getHistory();
- notification.from = "policy";
- notification.policyName = drools.getRule().getName();
- notification.policyScope = "${policyScope}";
- notification.policyVersion = "${policyVersion}";
- Engine.deliver("UEB", "POLICY-CL-MGT", notification);
-
- switch ($operation.policy.actor){
-
- case "APPC":
-
- if (request instanceof Request) {
- Engine.deliver("UEB", "APPC-CL", request);
- }
- case "SDNR":
- default:
- }
-
-
- } else {
- //
- // What happens if its null?
- //
- }
-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 "${policyName}.EVENT.MANAGER.OPERATION.LOCKED.GUARD_NOT_YET_QUERIED"
- when
- $params : Params( getClosedLoopControlName() == "${closedLoopControlName}" )
- $event : ATTControlLoopEvent( closedLoopControlName == $params.getClosedLoopControlName() )
- $manager : ControlLoopEventManager( closedLoopControlName == $event.closedLoopControlName, requestID == $event.requestID )
- $operation : ControlLoopOperationManager( onset.closedLoopControlName == $event.closedLoopControlName, onset.requestID == $event.requestID, getGuardApprovalStatus() == "NONE" )
- $lock : TargetLock (requestID == $event.requestID)
- then
- //
- // Logging
- //
- Logger.info("------------------------------------------------------------------------------------------------");
- Logger.metrics(Instant.now() + " " + drools.getRule().getName() + " " + drools.getRule().getPackage());
- Logger.metrics($params);
- Logger.metrics($manager);
- Logger.metrics($operation);
- Logger.metrics($lock);
-
-
-
-
- //
- // We are starting the operation but the actor won't be contacted until Guard is queried and permitted.
- //
- $operation.startOperation($event);
-
- //
- // Sending notification that we are about to query Guard ("DB write - start operation")
- //
- ATTControlLoopNotification notification = new ATTControlLoopNotification($event);
- notification.notification = ControlLoopNotificationType.OPERATION;
- notification.message = $operation.getOperationMessage();
- notification.history = $operation.getHistory();
- notification.from = "policy";
- notification.policyName = drools.getRule().getName();
- notification.policyScope = "${policyScope}";
- notification.policyVersion = "${policyVersion}";
- Engine.deliver("UEB", "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 o the CallGuardTask() and set the first
- // argument to null (instead of XacmlPdpEngine).
- //
- boolean guardEnabled = true;
-
- if(guardEnabled){
-
- Thread t = new Thread(new com.att.ecomp.policy.guard.CallGuardTask(
- XacmlPdpEngine,
- "",
- drools.getWorkingMemory(),
- $operation.policy.actor.toString(),
- $operation.policy.recipe,
- $event.target,
- $event.requestID.toString()
- ));
- t.start();
- }
- else{
- insert(new PolicyGuardResponse("Permit", $event.requestID, $operation.policy.recipe));
- }
-
-
-
-
-end
-
-//
-//This rule will be triggered when a thread talking to the XACML Guard inserts a guardResponse object into the working memory
-//
-rule "${policyName}.GUARD.RESPONSE"
- when
- $params : Params( getClosedLoopControlName() == "${closedLoopControlName}" )
- $event : ATTControlLoopEvent( closedLoopControlName == $params.getClosedLoopControlName(), closedLoopEventStatus == ControlLoopEventStatus.ONSET )
- $manager : ControlLoopEventManager( closedLoopControlName == $event.closedLoopControlName, requestID == $event.requestID )
- $operation : ControlLoopOperationManager( onset.closedLoopControlName == $event.closedLoopControlName, onset.requestID == $event.requestID )
- $lock : TargetLock (requestID == $event.requestID)
- $opTimer : OperationTimer( closedLoopControlName == $event.closedLoopControlName, requestID == $event.requestID.toString() )
- $guardResponse : PolicyGuardResponse(requestID == $event.requestID, $operation.policy.recipe == operation)
- then
- //
- // Logging
- //
- Logger.info("------------------------------------------------------------------------------------------------");
- Logger.metrics(Instant.now() + " " + drools.getRule().getName() + " " + drools.getRule().getPackage());
- Logger.metrics($params);
- Logger.metrics($event);
- Logger.metrics($operation);
- Logger.metrics($lock);
- Logger.metrics($guardResponse);
-
-
- //we will permit the operation if there was no Guard for it
- if($guardResponse.result == "Indeterminate"){
- $guardResponse.result = "Permit";
- }
-
- //
- // This notification has Guard result in "message". ("DB write - end operation in case of Guard Deny")
- //
- ATTControlLoopNotification notification = new ATTControlLoopNotification($event);
- notification.notification = ControlLoopNotificationType.OPERATION;
- notification.message = $operation.getOperationMessage($guardResponse.result);
- notification.history = $operation.getHistory();
- notification.from = "policy";
- notification.policyName = drools.getRule().getName();
- notification.policyScope = "${policyScope}";
- notification.policyVersion = "${policyVersion}";
- Engine.deliver("UEB", "POLICY-CL-MGT", notification);
-
-
-
- if($guardResponse.result == "Permit"){
-
- modify($operation){setGuardApprovalStatus($guardResponse.result)};
- }
- else {
- //This is the Deny case
- $operation.setOperationHasGuardDeny();
- retract($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 == $onset.requestID )
-*
-* However, no compile error was given. But a runtime error was given. I think
-* because drools is confused between the classname CommonHeader vs the property CommonHeader.
-*
-*/
-rule "${policyName}.APPC.RESPONSE"
- when
- $params : Params( getClosedLoopControlName() == "${closedLoopControlName}" )
- $event : ATTControlLoopEvent( closedLoopControlName == $params.getClosedLoopControlName(), closedLoopEventStatus == ControlLoopEventStatus.ONSET )
- $manager : ControlLoopEventManager( closedLoopControlName == $event.closedLoopControlName, requestID == $event.requestID )
- $operation : ControlLoopOperationManager( onset.closedLoopControlName == $event.closedLoopControlName, onset.requestID == $event.requestID )
- $opTimer : OperationTimer( closedLoopControlName == $event.closedLoopControlName, requestID == $event.requestID.toString() )
- $lock : TargetLock (requestID == $event.requestID)
- $response : Response( getCommonHeader().RequestID == $event.requestID )
- then
- //
- // Logging
- //
- Logger.info("------------------------------------------------------------------------------------------------");
- Logger.metrics(Instant.now() + " " + drools.getRule().getName() + " " + drools.getRule().getPackage());
- Logger.metrics($params);
- Logger.metrics($event);
- Logger.metrics($manager);
- Logger.metrics($operation);
- Logger.metrics($opTimer);
- Logger.metrics($lock);
- Logger.metrics($response);
- //
- // Get the result of the operation
- //
- PolicyResult policyResult = $operation.onResponse($response);
- if (policyResult != null) {
- Logger.info("operation finished with result: " + policyResult);
- //
- // This Operation has completed, construct a notification showing our results. (DB write - end operation)
- //
- ATTControlLoopNotification notification = new ATTControlLoopNotification($event);
- notification.from = "policy";
- notification.policyName = drools.getRule().getName();
- notification.policyScope = "${policyScope}";
- notification.policyVersion = "${policyVersion}";
- notification.message = $operation.getOperationHistory();
- notification.history = $operation.getHistory();
- if (policyResult.equals(PolicyResult.SUCCESS)) {
- notification.notification = ControlLoopNotificationType.OPERATION_SUCCESS;
- //
- // Let interested parties know
- //
- Engine.deliver("UEB", "POLICY-CL-MGT", notification);
- } else {
- notification.notification = ControlLoopNotificationType.OPERATION_FAILURE;
- //
- // Let interested parties know
- //
- Engine.deliver("UEB", "POLICY-CL-MGT", notification);
- }
- //
- // Ensure the operation is complete
- //
- if ($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 "${policyName}.APPC.RESPONSE.CLEANUP"
- when
- $params : Params( getClosedLoopControlName() == "${closedLoopControlName}" )
- $response : Response($id : getCommonHeader().RequestID )
- not ( ATTControlLoopEvent( closedLoopControlName == $params.getClosedLoopControlName(), requestID == $id, closedLoopEventStatus == ControlLoopEventStatus.ONSET ) )
- then
- //
- // Logging
- //
- Logger.info("------------------------------------------------------------------------------------------------");
- Logger.metrics(Instant.now() + " " + drools.getRule().getName() + " " + drools.getRule().getPackage());
- Logger.metrics($params);
- //
- // Retract it
- //
- retract($response);
-end
-/*
-*
-* This is the timer that manages the timeout for an individual operation.
-*
-*/
-rule "${policyName}.EVENT.MANAGER.OPERATION.TIMEOUT"
- timer (expr: $to )
- when
- $params : Params( getClosedLoopControlName() == "${closedLoopControlName}" )
- $event : ATTControlLoopEvent( closedLoopControlName == $params.getClosedLoopControlName() )
- $manager : ControlLoopEventManager( closedLoopControlName == $event.closedLoopControlName, requestID == $event.requestID )
- $operation : ControlLoopOperationManager( onset.closedLoopControlName == $event.closedLoopControlName, onset.requestID == $event.requestID )
- $opTimer : OperationTimer( closedLoopControlName == $event.closedLoopControlName, requestID == $event.requestID.toString(), $to : getDelay() )
- $lock : TargetLock (requestID == $event.requestID)
- then
- //
- // Logging
- //
- Logger.info("------------------------------------------------------------------------------------------------");
- Logger.metrics(Instant.now() + " " + drools.getRule().getName() + " " + drools.getRule().getPackage());
- Logger.metrics($params);
- Logger.metrics($manager);
- Logger.metrics($operation);
- Logger.metrics($opTimer);
- Logger.metrics($lock);
- //
- // Tell it its timed out
- //
- $operation.setOperationHasTimedOut();
- //
- // Create a notification for it ("DB Write - end operation")
- //
- ATTControlLoopNotification notification = new ATTControlLoopNotification($event);
- notification.from = "policy";
- notification.policyName = drools.getRule().getName();
- notification.policyScope = "${policyScope}";
- notification.policyVersion = "${policyVersion}";
- notification.notification = ControlLoopNotificationType.OPERATION_FAILURE;
- notification.message = $operation.getOperationHistory();
- notification.history = $operation.getHistory();
- //
- // Let interested parties know
- //
- Engine.deliver("UEB", "POLICY-CL-MGT", notification);
- //
- // Get rid of the timer
- //
- retract($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($operation) {};
- }
-end
-
-/*
-*
-* This is the timer that manages the overall control loop timeout.
-*
-*/
-rule "${policyName}.EVENT.MANAGER.TIMEOUT"
- timer (expr: $to )
- when
- $params : Params( getClosedLoopControlName() == "${closedLoopControlName}" )
- $event : ATTControlLoopEvent( closedLoopControlName == $params.getClosedLoopControlName() )
- $manager : ControlLoopEventManager( closedLoopControlName == $event.closedLoopControlName, requestID == $event.requestID )
- $clTimer : ControlLoopTimer ( closedLoopControlName == $event.closedLoopControlName, requestID == $event.requestID.toString(), $to : getDelay() )
- $operations : LinkedList()
- from collect( ControlLoopOperationManager( onset.closedLoopControlName == $event.closedLoopControlName, onset.requestID == $event.requestID ) )
- $opTimers : LinkedList()
- from collect( OperationTimer( closedLoopControlName == $event.closedLoopControlName, requestID == $event.requestID.toString() ) )
- $locks : LinkedList()
- from collect( TargetLock (requestID == $event.requestID) )
- then
- //
- // Logging
- //
- Logger.info("------------------------------------------------------------------------------------------------");
- Logger.metrics(Instant.now() + " " + drools.getRule().getName() + " " + drools.getRule().getPackage());
- Logger.metrics($params);
- Logger.metrics($manager);
- Logger.metrics($clTimer);
- if ($operations == null) {
- Logger.info("no operations found");
- } else {
- Logger.info("found " + $operations.size() + " operations");
- }
- //
- // Tell the Event Manager it has timed out
- //
- VirtualControlLoopNotification notification = $manager.setControlLoopTimedOut();
- if (notification != null) {
- notification.from = "policy";
- notification.policyName = drools.getRule().getName();
- notification.policyScope = "${policyScope}";
- notification.policyVersion = "${policyVersion}";
- //
- // Let interested parties know
- //
- Engine.deliver("UEB", "POLICY-CL-MGT", notification);
- }
- //
- // Retract EVERYTHING
- //
- retract($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
Code Review / policy / drools-applications.git / blobdiff