gerrit.onap Code Review - policy/drools-applications.git/blob

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * ONAP
   4  * ================================================================================
   5  * Copyright (C) 2017-2020 AT&T Intellectual Property. All rights reserved.
   6  * ================================================================================
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  * ============LICENSE_END=========================================================
  19  */
  20
  21 package org.onap.policy.controlloop.eventmanager;
  22
  23 import static org.onap.policy.controlloop.ControlLoopTargetType.PNF;
  24 import static org.onap.policy.controlloop.ControlLoopTargetType.VM;
  25 import static org.onap.policy.controlloop.ControlLoopTargetType.VNF;
  26
  27 import java.io.Serializable;
  28 import java.util.Collections;
  29 import java.util.HashMap;
  30 import java.util.LinkedList;
  31 import java.util.Map;
  32 import java.util.Set;
  33 import java.util.UUID;
  34 import java.util.concurrent.CompletableFuture;
  35 import java.util.concurrent.Executor;
  36 import java.util.concurrent.ExecutorService;
  37 import java.util.concurrent.ForkJoinPool;
  38 import java.util.concurrent.TimeUnit;
  39 import java.util.concurrent.atomic.AtomicReference;
  40 import java.util.function.Consumer;
  41 import java.util.stream.Collectors;
  42 import java.util.stream.Stream;
  43 import lombok.Getter;
  44 import lombok.ToString;
  45 import org.apache.commons.lang3.StringUtils;
  46 import org.drools.core.WorkingMemory;
  47 import org.kie.api.runtime.rule.FactHandle;
  48 import org.onap.policy.controlloop.ControlLoopEventStatus;
  49 import org.onap.policy.controlloop.ControlLoopException;
  50 import org.onap.policy.controlloop.ControlLoopNotificationType;
  51 import org.onap.policy.controlloop.ControlLoopOperation;
  52 import org.onap.policy.controlloop.VirtualControlLoopEvent;
  53 import org.onap.policy.controlloop.VirtualControlLoopNotification;
  54 import org.onap.policy.controlloop.actorserviceprovider.ActorService;
  55 import org.onap.policy.controlloop.actorserviceprovider.OperationOutcome;
  56 import org.onap.policy.controlloop.actorserviceprovider.controlloop.ControlLoopEventContext;
  57 import org.onap.policy.controlloop.drl.legacy.ControlLoopParams;
  58 import org.onap.policy.controlloop.ophistory.OperationHistoryDataManager;
  59 import org.onap.policy.controlloop.policy.FinalResult;
  60 import org.onap.policy.controlloop.policy.Policy;
  61 import org.onap.policy.controlloop.processor.ControlLoopProcessor;
  62 import org.onap.policy.drools.core.lock.LockCallback;
  63 import org.onap.policy.drools.system.PolicyEngineConstants;
  64 import org.slf4j.Logger;
  65 import org.slf4j.LoggerFactory;
  66
  67 /**
  68  * Manager for a single control loop event. Once this has been created, the event can be
  69  * retracted from working memory. Once this has been created, {@link #start()} should be
  70  * invoked, and then {@link #nextStep()} should be invoked continually until
  71  * {@link #isActive()} returns {@code false}, indicating that all steps have completed.
  72  */
  73 @ToString(onlyExplicitlyIncluded = true)
  74 public class ControlLoopEventManager2 implements ManagerContext, Serializable {
  75     private static final Logger logger = LoggerFactory.getLogger(ControlLoopEventManager2.class);
  76     private static final long serialVersionUID = -1216568161322872641L;
  77
  78     private static final String EVENT_MANAGER_SERVICE_CONFIG = "event-manager";
  79     public static final String PROV_STATUS_ACTIVE = "ACTIVE";
  80     private static final String VM_NAME = "VM_NAME";
  81     private static final String VNF_NAME = "VNF_NAME";
  82     public static final String GENERIC_VNF_VNF_ID = "generic-vnf.vnf-id";
  83     public static final String GENERIC_VNF_VNF_NAME = "generic-vnf.vnf-name";
  84     public static final String VSERVER_VSERVER_NAME = "vserver.vserver-name";
  85     public static final String GENERIC_VNF_IS_CLOSED_LOOP_DISABLED = "generic-vnf.is-closed-loop-disabled";
  86     public static final String VSERVER_IS_CLOSED_LOOP_DISABLED = "vserver.is-closed-loop-disabled";
  87     public static final String PNF_IS_IN_MAINT = "pnf.in-maint";
  88     public static final String GENERIC_VNF_PROV_STATUS = "generic-vnf.prov-status";
  89     public static final String VSERVER_PROV_STATUS = "vserver.prov-status";
  90     public static final String PNF_ID = "pnf.pnf-id";
  91     public static final String PNF_NAME = "pnf.pnf-name";
  92
  93     private static final Set<String> VALID_TARGETS = Stream
  94                     .of(VM_NAME, VNF_NAME, VSERVER_VSERVER_NAME, GENERIC_VNF_VNF_ID, GENERIC_VNF_VNF_NAME, PNF_NAME)
  95                     .map(String::toLowerCase).collect(Collectors.toSet());
  96
  97     private static final Set<String> TRUE_VALUES = Set.of("true", "t", "yes", "y");
  98
  99     public enum NewEventStatus {
 100         FIRST_ONSET, SUBSEQUENT_ONSET, FIRST_ABATEMENT, SUBSEQUENT_ABATEMENT, SYNTAX_ERROR
 101     }
 102
 103     /**
 104      * {@code True} if this object was created by this JVM instance, {@code false}
 105      * otherwise. This will be {@code false} if this object is reconstituted from a
 106      * persistent store or by transfer from another server.
 107      */
 108     private transient boolean createdByThisJvmInstance;
 109
 110     @Getter
 111     @ToString.Include
 112     public final String closedLoopControlName;
 113     @Getter
 114     @ToString.Include
 115     private final UUID requestId;
 116     private final ControlLoopEventContext context;
 117     @ToString.Include
 118     private int numOnsets = 1;
 119     @ToString.Include
 120     private int numAbatements = 0;
 121     private VirtualControlLoopEvent abatement = null;
 122
 123     /**
 124      * Time, in milliseconds, when the control loop will time out.
 125      */
 126     @Getter
 127     private final long endTimeMs;
 128
 129     // fields extracted from the ControlLoopParams
 130     @Getter
 131     private final String policyName;
 132     private final String policyScope;
 133     private final String policyVersion;
 134
 135     private final LinkedList<ControlLoopOperation> controlLoopHistory = new LinkedList<>();
 136
 137     /**
 138      * Maps a target entity to its lock.
 139      */
 140     private final transient Map<String, LockData> target2lock = new HashMap<>();
 141
 142     private final ControlLoopProcessor processor;
 143     private final AtomicReference<ControlLoopOperationManager2> currentOperation = new AtomicReference<>();
 144
 145     private FinalResult finalResult = null;
 146
 147     @Getter
 148     private VirtualControlLoopNotification notification;
 149
 150     @Getter
 151     private boolean updated = false;
 152
 153     private final transient WorkingMemory workMem;
 154     private transient FactHandle factHandle;
 155
 156
 157     /**
 158      * Constructs the object.
 159      *
 160      * @param params control loop parameters
 161      * @param event event to be managed by this object
 162      * @param workMem working memory to update if this changes
 163      * @throws ControlLoopException if the event is invalid or if a YAML processor cannot
 164      *         be created
 165      */
 166     public ControlLoopEventManager2(ControlLoopParams params, VirtualControlLoopEvent event, WorkingMemory workMem)
 167                     throws ControlLoopException {
 168
 169         checkEventSyntax(event);
 170
 171         if (isClosedLoopDisabled(event)) {
 172             throw new IllegalStateException("is-closed-loop-disabled is set to true on VServer or VNF");
 173         }
 174
 175         if (isProvStatusInactive(event)) {
 176             throw new IllegalStateException("prov-status is not ACTIVE on VServer or VNF");
 177         }
 178
 179         this.createdByThisJvmInstance = true;
 180         this.closedLoopControlName = params.getClosedLoopControlName();
 181         this.requestId = event.getRequestId();
 182         this.context = new ControlLoopEventContext(event);
 183         this.policyName = params.getPolicyName();
 184         this.policyScope = params.getPolicyScope();
 185         this.policyVersion = params.getPolicyVersion();
 186         this.processor = new ControlLoopProcessor(params.getToscaPolicy());
 187         this.workMem = workMem;
 188         this.endTimeMs = System.currentTimeMillis() + detmControlLoopTimeoutMs();
 189     }
 190
 191     /**
 192      * Starts the manager.
 193      *
 194      * @throws ControlLoopException if the processor cannot get a policy
 195      */
 196     public void start() throws ControlLoopException {
 197         if (!isActive()) {
 198             throw new IllegalStateException("manager is no longer active");
 199         }
 200
 201         if ((factHandle = workMem.getFactHandle(this)) == null) {
 202             throw new IllegalStateException("manager is not in working memory");
 203         }
 204
 205         if (currentOperation.get() != null) {
 206             throw new IllegalStateException("manager already started");
 207         }
 208
 209         startOperation();
 210     }
 211
 212     /**
 213      * Starts an operation for the current processor policy.
 214      *
 215      * @throws ControlLoopException if the processor cannot get a policy
 216      */
 217     private synchronized void startOperation() throws ControlLoopException {
 218
 219         if ((finalResult = processor.checkIsCurrentPolicyFinal()) == null) {
 220             // not final - start the next operation
 221             currentOperation.set(makeOperationManager(context, processor.getCurrentPolicy()));
 222             currentOperation.get().start(endTimeMs - System.currentTimeMillis());
 223             return;
 224         }
 225
 226         logger.info("final={} oper state={} for {}", finalResult, currentOperation.get().getState(), requestId);
 227
 228         notification = makeNotification();
 229         notification.setHistory(controlLoopHistory);
 230
 231         switch (finalResult) {
 232             case FINAL_FAILURE_EXCEPTION:
 233                 notification.setNotification(ControlLoopNotificationType.FINAL_FAILURE);
 234                 notification.setMessage("Exception in processing closed loop");
 235                 break;
 236             case FINAL_SUCCESS:
 237                 notification.setNotification(ControlLoopNotificationType.FINAL_SUCCESS);
 238                 break;
 239             case FINAL_OPENLOOP:
 240                 notification.setNotification(ControlLoopNotificationType.FINAL_OPENLOOP);
 241                 break;
 242             case FINAL_FAILURE:
 243             default:
 244                 notification.setNotification(ControlLoopNotificationType.FINAL_FAILURE);
 245                 break;
 246         }
 247     }
 248
 249     /**
 250      * Starts the next step, whatever that may be.
 251      */
 252     public synchronized void nextStep() {
 253         if (!isActive()) {
 254             return;
 255         }
 256
 257         updated = false;
 258
 259         try {
 260             if (!currentOperation.get().nextStep()) {
 261                 // current operation is done - try the next
 262                 controlLoopHistory.addAll(currentOperation.get().getHistory());
 263                 processor.nextPolicyForResult(currentOperation.get().getOperationResult());
 264                 startOperation();
 265             }
 266
 267         } catch (ControlLoopException | RuntimeException e) {
 268             // processor problem - this is fatal
 269             logger.warn("{}: cannot start next step for {}", closedLoopControlName, requestId, e);
 270             finalResult = FinalResult.FINAL_FAILURE_EXCEPTION;
 271             notification = makeNotification();
 272             notification.setNotification(ControlLoopNotificationType.FINAL_FAILURE);
 273             notification.setMessage("Policy processing aborted due to policy error");
 274             notification.setHistory(controlLoopHistory);
 275         }
 276     }
 277
 278     /**
 279      * Determines if the manager is still active.
 280      *
 281      * @return {@code true} if the manager is still active, {@code false} otherwise
 282      */
 283     public synchronized boolean isActive() {
 284         return (createdByThisJvmInstance && finalResult == null);
 285     }
 286
 287     /**
 288      * Updates working memory if this changes.
 289      *
 290      * @param operation operation manager that was updated
 291      */
 292     @Override
 293     public synchronized void updated(ControlLoopOperationManager2 operation) {
 294         if (!isActive() || operation != currentOperation.get()) {
 295             // no longer working on the given operation
 296             return;
 297         }
 298
 299         notification = makeNotification();
 300
 301         VirtualControlLoopEvent event = context.getEvent();
 302
 303         switch (operation.getState()) {
 304             case LOCK_DENIED:
 305                 notification.setNotification(ControlLoopNotificationType.REJECTED);
 306                 notification.setMessage("The target " + event.getAai().get(event.getTarget()) + " is already locked");
 307                 break;
 308             case LOCK_LOST:
 309                 notification.setNotification(ControlLoopNotificationType.OPERATION_FAILURE);
 310                 notification.setMessage("The target " + event.getAai().get(event.getTarget()) + " is no longer locked");
 311                 break;
 312             case GUARD_STARTED:
 313                 notification.setNotification(ControlLoopNotificationType.OPERATION);
 314                 notification.setMessage(
 315                                 "Sending guard query for " + operation.getActor() + " " + operation.getOperation());
 316                 break;
 317             case GUARD_PERMITTED:
 318                 notification.setNotification(ControlLoopNotificationType.OPERATION);
 319                 notification.setMessage("Guard result for " + operation.getActor() + " " + operation.getOperation()
 320                                 + " is Permit");
 321                 break;
 322             case GUARD_DENIED:
 323                 notification.setNotification(ControlLoopNotificationType.OPERATION);
 324                 notification.setMessage("Guard result for " + operation.getActor() + " " + operation.getOperation()
 325                                 + " is Deny");
 326                 break;
 327             case OPERATION_STARTED:
 328                 notification.setNotification(ControlLoopNotificationType.OPERATION);
 329                 notification.setMessage(operation.getOperationMessage());
 330                 notification.setHistory(Collections.emptyList());
 331                 break;
 332             case OPERATION_SUCCESS:
 333                 notification.setNotification(ControlLoopNotificationType.OPERATION_SUCCESS);
 334                 break;
 335
 336             case CONTROL_LOOP_TIMEOUT:
 337                 logger.warn("{}: control loop timed out for {}", closedLoopControlName, requestId);
 338                 controlLoopHistory.addAll(currentOperation.get().getHistory());
 339                 notification.setNotification(ControlLoopNotificationType.FINAL_FAILURE);
 340                 notification.setMessage("Control Loop timed out");
 341                 notification.setHistory(controlLoopHistory);
 342                 finalResult = FinalResult.FINAL_FAILURE;
 343                 break;
 344
 345             case OPERATION_FAILURE:
 346             default:
 347                 notification.setNotification(ControlLoopNotificationType.OPERATION_FAILURE);
 348                 break;
 349         }
 350
 351         updated = true;
 352         workMem.update(factHandle, this);
 353     }
 354
 355     /**
 356      * Cancels the current operation and frees all locks.
 357      */
 358     public synchronized void destroy() {
 359         ControlLoopOperationManager2 oper = currentOperation.get();
 360         if (oper != null) {
 361             oper.cancel();
 362         }
 363
 364         getBlockingExecutor().execute(this::freeAllLocks);
 365     }
 366
 367     /**
 368      * Frees all locks.
 369      */
 370     private void freeAllLocks() {
 371         target2lock.values().forEach(LockData::free);
 372     }
 373
 374     /**
 375      * Makes a notification message for the current operation.
 376      *
 377      * @return a new notification
 378      */
 379     public synchronized VirtualControlLoopNotification makeNotification() {
 380         VirtualControlLoopNotification notif = new VirtualControlLoopNotification(context.getEvent());
 381         notif.setNotification(ControlLoopNotificationType.OPERATION);
 382         notif.setFrom("policy");
 383         notif.setPolicyScope(policyScope);
 384         notif.setPolicyVersion(policyVersion);
 385
 386         if (finalResult == null) {
 387             ControlLoopOperationManager2 oper = currentOperation.get();
 388             if (oper != null) {
 389                 notif.setMessage(oper.getOperationHistory());
 390                 notif.setHistory(oper.getHistory());
 391             }
 392         }
 393
 394         return notif;
 395     }
 396
 397     /**
 398      * An event onset/abatement.
 399      *
 400      * @param event the event
 401      * @return the status
 402      */
 403     public synchronized NewEventStatus onNewEvent(VirtualControlLoopEvent event) {
 404         try {
 405             checkEventSyntax(event);
 406
 407             if (event.getClosedLoopEventStatus() == ControlLoopEventStatus.ONSET) {
 408                 if (event.equals(context.getEvent())) {
 409                     return NewEventStatus.FIRST_ONSET;
 410                 }
 411
 412                 numOnsets++;
 413                 return NewEventStatus.SUBSEQUENT_ONSET;
 414
 415             } else {
 416                 if (abatement == null) {
 417                     abatement = event;
 418                     numAbatements++;
 419                     return NewEventStatus.FIRST_ABATEMENT;
 420                 } else {
 421                     numAbatements++;
 422                     return NewEventStatus.SUBSEQUENT_ABATEMENT;
 423                 }
 424             }
 425         } catch (ControlLoopException e) {
 426             logger.error("{}: onNewEvent threw an exception", this, e);
 427             return NewEventStatus.SYNTAX_ERROR;
 428         }
 429     }
 430
 431     /**
 432      * Determines the overall control loop timeout.
 433      *
 434      * @return the policy timeout, in milliseconds, if specified, a default timeout
 435      *         otherwise
 436      */
 437     private long detmControlLoopTimeoutMs() {
 438         // validation checks preclude null or 0 timeout values in the policy
 439         Integer timeout = processor.getControlLoop().getTimeout();
 440         return TimeUnit.MILLISECONDS.convert(timeout, TimeUnit.SECONDS);
 441     }
 442
 443     /**
 444      * Check an event syntax.
 445      *
 446      * @param event the event syntax
 447      * @throws ControlLoopException if an error occurs
 448      */
 449     protected void checkEventSyntax(VirtualControlLoopEvent event) throws ControlLoopException {
 450         validateStatus(event);
 451         if (StringUtils.isBlank(event.getClosedLoopControlName())) {
 452             throw new ControlLoopException("No control loop name");
 453         }
 454         if (event.getRequestId() == null) {
 455             throw new ControlLoopException("No request ID");
 456         }
 457         if (event.getClosedLoopEventStatus() == ControlLoopEventStatus.ABATED) {
 458             return;
 459         }
 460         if (StringUtils.isBlank(event.getTarget())) {
 461             throw new ControlLoopException("No target field");
 462         } else if (!VALID_TARGETS.contains(event.getTarget().toLowerCase())) {
 463             throw new ControlLoopException("target field invalid");
 464         }
 465         validateAaiData(event);
 466     }
 467
 468     private void validateStatus(VirtualControlLoopEvent event) throws ControlLoopException {
 469         if (event.getClosedLoopEventStatus() != ControlLoopEventStatus.ONSET
 470                         && event.getClosedLoopEventStatus() != ControlLoopEventStatus.ABATED) {
 471             throw new ControlLoopException("Invalid value in closedLoopEventStatus");
 472         }
 473     }
 474
 475     private void validateAaiData(VirtualControlLoopEvent event) throws ControlLoopException {
 476         Map<String, String> eventAai = event.getAai();
 477         if (eventAai == null) {
 478             throw new ControlLoopException("AAI is null");
 479         }
 480         if (event.getTargetType() == null) {
 481             throw new ControlLoopException("The Target type is null");
 482         }
 483         switch (event.getTargetType()) {
 484             case VM:
 485             case VNF:
 486                 validateAaiVmVnfData(eventAai);
 487                 return;
 488             case PNF:
 489                 validateAaiPnfData(eventAai);
 490                 return;
 491             default:
 492                 throw new ControlLoopException("The target type is not supported");
 493         }
 494     }
 495
 496     private void validateAaiVmVnfData(Map<String, String> eventAai) throws ControlLoopException {
 497         if (eventAai.get(GENERIC_VNF_VNF_ID) == null && eventAai.get(VSERVER_VSERVER_NAME) == null
 498                         && eventAai.get(GENERIC_VNF_VNF_NAME) == null) {
 499             throw new ControlLoopException(
 500                             "generic-vnf.vnf-id or generic-vnf.vnf-name or vserver.vserver-name information missing");
 501         }
 502     }
 503
 504     private void validateAaiPnfData(Map<String, String> eventAai) throws ControlLoopException {
 505         if (eventAai.get(PNF_NAME) == null) {
 506             throw new ControlLoopException("AAI PNF object key pnf-name is missing");
 507         }
 508     }
 509
 510     /**
 511      * Is closed loop disabled for an event.
 512      *
 513      * @param event the event
 514      * @return <code>true</code> if the control loop is disabled, <code>false</code>
 515      *         otherwise
 516      */
 517     private static boolean isClosedLoopDisabled(VirtualControlLoopEvent event) {
 518         Map<String, String> aai = event.getAai();
 519         return (isAaiTrue(aai.get(VSERVER_IS_CLOSED_LOOP_DISABLED))
 520                         || isAaiTrue(aai.get(GENERIC_VNF_IS_CLOSED_LOOP_DISABLED))
 521                         || isAaiTrue(aai.get(PNF_IS_IN_MAINT)));
 522     }
 523
 524     /**
 525      * Does provisioning status, for an event, have a value other than ACTIVE.
 526      *
 527      * @param event the event
 528      * @return {@code true} if the provisioning status is neither ACTIVE nor {@code null},
 529      *         {@code false} otherwise
 530      */
 531     private static boolean isProvStatusInactive(VirtualControlLoopEvent event) {
 532         Map<String, String> aai = event.getAai();
 533         return !(PROV_STATUS_ACTIVE.equals(aai.getOrDefault(VSERVER_PROV_STATUS, PROV_STATUS_ACTIVE))
 534                         && PROV_STATUS_ACTIVE.equals(aai.getOrDefault(GENERIC_VNF_PROV_STATUS, PROV_STATUS_ACTIVE)));
 535     }
 536
 537     /**
 538      * Determines the boolean value represented by the given AAI field value.
 539      *
 540      * @param aaiValue value to be examined
 541      * @return the boolean value represented by the field value, or {@code false} if the
 542      *         value is {@code null}
 543      */
 544     private static boolean isAaiTrue(String aaiValue) {
 545         return (aaiValue != null && TRUE_VALUES.contains(aaiValue.toLowerCase()));
 546     }
 547
 548     /**
 549      * Requests a lock. This requests the lock for the time that remains before the
 550      * timeout expires. This avoids having to extend the lock.
 551      *
 552      * @param targetEntity entity to be locked
 553      * @param lockUnavailableCallback function to be invoked if the lock is
 554      *        unavailable/lost
 555      * @return a future that can be used to await the lock
 556      */
 557     @Override
 558     public synchronized CompletableFuture<OperationOutcome> requestLock(String targetEntity,
 559                     Consumer<OperationOutcome> lockUnavailableCallback) {
 560
 561         long remainingMs = endTimeMs - System.currentTimeMillis();
 562         int remainingSec = 15 + Math.max(0, (int) TimeUnit.SECONDS.convert(remainingMs, TimeUnit.MILLISECONDS));
 563
 564         LockData data = target2lock.computeIfAbsent(targetEntity, key -> {
 565             LockData data2 = new LockData(key, requestId);
 566             makeLock(targetEntity, requestId.toString(), remainingSec, data2);
 567             return data2;
 568         });
 569
 570         data.addUnavailableCallback(lockUnavailableCallback);
 571
 572         return data.getFuture();
 573     }
 574
 575     /**
 576      * Initializes various components, on demand.
 577      */
 578     private static class LazyInitData {
 579         private static final OperationHistoryDataManager DATA_MANAGER;
 580         private static final ActorService ACTOR_SERVICE;
 581
 582         static {
 583             EventManagerServices services = new EventManagerServices(EVENT_MANAGER_SERVICE_CONFIG);
 584             ACTOR_SERVICE = services.getActorService();
 585             DATA_MANAGER = services.getDataManager();
 586         }
 587     }
 588
 589     // the following methods may be overridden by junit tests
 590
 591     protected ControlLoopOperationManager2 makeOperationManager(ControlLoopEventContext ctx, Policy policy) {
 592         return new ControlLoopOperationManager2(this, ctx, policy, getExecutor());
 593     }
 594
 595     protected Executor getExecutor() {
 596         return ForkJoinPool.commonPool();
 597     }
 598
 599     protected ExecutorService getBlockingExecutor() {
 600         return PolicyEngineConstants.getManager().getExecutorService();
 601     }
 602
 603     protected void makeLock(String targetEntity, String requestId, int holdSec, LockCallback callback) {
 604         PolicyEngineConstants.getManager().createLock(targetEntity, requestId, holdSec, callback, false);
 605     }
 606
 607     @Override
 608     public ActorService getActorService() {
 609         return LazyInitData.ACTOR_SERVICE;
 610     }
 611
 612     @Override
 613     public OperationHistoryDataManager getDataManager() {
 614         return LazyInitData.DATA_MANAGER;
 615     }
 616 }