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

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * controlloop event manager
   4  * ================================================================================
   5  * Copyright (C) 2017 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 java.io.Serializable;
  24 import java.io.UnsupportedEncodingException;
  25 import java.net.URLDecoder;
  26 import java.util.ArrayList;
  27 import java.util.Collection;
  28 import java.util.LinkedList;
  29 import java.util.UUID;
  30
  31 import org.onap.policy.aai.AAIGETVnfResponse;
  32 import org.onap.policy.aai.AAIGETVserverResponse;
  33 import org.onap.policy.aai.AAIManager;
  34 import org.onap.policy.controlloop.ControlLoopEventStatus;
  35 import org.onap.policy.controlloop.ControlLoopException;
  36 import org.onap.policy.controlloop.ControlLoopNotificationType;
  37 import org.onap.policy.controlloop.ControlLoopOperation;
  38 import org.onap.policy.controlloop.VirtualControlLoopEvent;
  39 import org.onap.policy.controlloop.VirtualControlLoopNotification;
  40 import org.onap.policy.controlloop.policy.FinalResult;
  41 import org.onap.policy.controlloop.policy.Policy;
  42 import org.onap.policy.controlloop.processor.ControlLoopProcessor;
  43 import org.onap.policy.guard.GuardResult;
  44 import org.onap.policy.guard.LockCallback;
  45 import org.onap.policy.guard.PolicyGuard;
  46 import org.onap.policy.guard.PolicyGuard.LockResult;
  47 import org.onap.policy.guard.TargetLock;
  48 import org.onap.policy.drools.system.PolicyEngine;
  49 import org.slf4j.Logger;
  50 import org.slf4j.LoggerFactory;
  51
  52 public class ControlLoopEventManager implements LockCallback, Serializable {
  53
  54         /**
  55          *
  56          */
  57         private static final Logger logger = LoggerFactory.getLogger(ControlLoopEventManager.class);
  58
  59         private static final long serialVersionUID = -1216568161322872641L;
  60         public final String closedLoopControlName;
  61         public final UUID requestID;
  62
  63         private String controlLoopResult;
  64         private transient ControlLoopProcessor processor = null;
  65         private VirtualControlLoopEvent onset;
  66         private Integer numOnsets = 0;
  67         private Integer numAbatements = 0;
  68         private VirtualControlLoopEvent abatement;
  69         private FinalResult controlLoopTimedOut = null;
  70
  71         private boolean isActivated = false;
  72         private LinkedList<ControlLoopOperation> controlLoopHistory = new LinkedList<>();
  73         private ControlLoopOperationManager currentOperation = null;
  74         private transient TargetLock targetLock = null;
  75         private AAIGETVnfResponse vnfResponse = null;
  76         private AAIGETVserverResponse vserverResponse = null;
  77         private static String aaiHostURL;
  78         private static String aaiUser;
  79         private static String aaiPassword;
  80
  81         private static Collection<String> requiredAAIKeys = new ArrayList<>();
  82         static {
  83                 requiredAAIKeys.add("AICVServerSelfLink");
  84                 requiredAAIKeys.add("AICIdentity");
  85                 requiredAAIKeys.add("is_closed_loop_disabled");
  86                 requiredAAIKeys.add("VM_NAME");
  87         }
  88
  89         public ControlLoopEventManager(String closedLoopControlName, UUID requestID) {
  90                 this.closedLoopControlName = closedLoopControlName;
  91                 this.requestID = requestID;
  92         }
  93
  94         public String getControlLoopResult() {
  95                 return controlLoopResult;
  96         }
  97
  98         public void setControlLoopResult(String controlLoopResult) {
  99                 this.controlLoopResult = controlLoopResult;
 100         }
 101
 102         public Integer getNumOnsets() {
 103                 return numOnsets;
 104         }
 105
 106         public void setNumOnsets(Integer numOnsets) {
 107                 this.numOnsets = numOnsets;
 108         }
 109
 110         public Integer getNumAbatements() {
 111                 return numAbatements;
 112         }
 113
 114         public void setNumAbatements(Integer numAbatements) {
 115                 this.numAbatements = numAbatements;
 116         }
 117
 118         public boolean isActivated() {
 119                 return isActivated;
 120         }
 121
 122         public void setActivated(boolean isActivated) {
 123                 this.isActivated = isActivated;
 124         }
 125
 126         public VirtualControlLoopEvent  getOnsetEvent() {
 127                 return this.onset;
 128         }
 129
 130         public VirtualControlLoopEvent getAbatementEvent() {
 131                 return this.abatement;
 132         }
 133
 134         public ControlLoopProcessor getProcessor() {
 135                 return this.processor;
 136         }
 137
 138         public VirtualControlLoopNotification   activate(VirtualControlLoopEvent event) {
 139                 VirtualControlLoopNotification notification = new VirtualControlLoopNotification(event);
 140                 try {
 141                         //
 142                         // This method should ONLY be called ONCE
 143                         //
 144                         if (this.isActivated) {
 145                                 throw new ControlLoopException("ControlLoopEventManager has already been activated.");
 146                         }
 147                         //
 148                         // Syntax check the event
 149                         //
 150                         checkEventSyntax(event);
 151                         //
 152                         // At this point we are good to go with this event
 153                         //
 154                         this.onset = event;
 155                         this.numOnsets = 1;
 156                         //
 157                         notification.notification = ControlLoopNotificationType.ACTIVE;
 158                         //
 159                         // Set ourselves as active
 160                         //
 161                         this.isActivated = true;
 162                 } catch (ControlLoopException e) {
 163                         logger.error("{}: activate threw: ",this, e);
 164                         notification.notification = ControlLoopNotificationType.REJECTED;
 165                         notification.message = e.getMessage();
 166                 }
 167                 return notification;
 168         }
 169
 170
 171
 172         public VirtualControlLoopNotification   activate(String yamlSpecification, VirtualControlLoopEvent event) {
 173                 VirtualControlLoopNotification notification = new VirtualControlLoopNotification(event);
 174                 try {
 175                         //
 176                         // This method should ONLY be called ONCE
 177                         //
 178                         if (this.isActivated) {
 179                                 throw new ControlLoopException("ControlLoopEventManager has already been activated.");
 180                         }
 181                         //
 182                         // Syntax check the event
 183                         //
 184                         checkEventSyntax(event);
 185
 186                         //
 187                         // Check the YAML
 188                         //
 189                         if (yamlSpecification == null || yamlSpecification.length() < 1) {
 190                                 throw new ControlLoopException("yaml specification is null or 0 length");
 191                         }
 192                         String decodedYaml = null;
 193                         try {
 194                                 decodedYaml = URLDecoder.decode(yamlSpecification, "UTF-8");
 195                                 if (decodedYaml != null && decodedYaml.length() > 0) {
 196                                         yamlSpecification = decodedYaml;
 197                                 }
 198                         } catch (UnsupportedEncodingException e) {
 199                                 logger.error("{}: activate threw: ",this, e);
 200                         }
 201                         //
 202                         // Parse the YAML specification
 203                         //
 204                         this.processor = new ControlLoopProcessor(yamlSpecification);
 205
 206                         //
 207                         // At this point we are good to go with this event
 208                         //
 209                         this.onset = event;
 210                         this.numOnsets = 1;
 211                         //
 212                         //
 213                         //
 214                         notification.notification = ControlLoopNotificationType.ACTIVE;
 215                         //
 216                         // Set ourselves as active
 217                         //
 218                         this.isActivated = true;
 219                 } catch (ControlLoopException e) {
 220                         logger.error("{}: activate threw: ",this, e);
 221                         notification.notification = ControlLoopNotificationType.REJECTED;
 222                         notification.message = e.getMessage();
 223                 }
 224                 return notification;
 225         }
 226
 227         public VirtualControlLoopNotification   isControlLoopFinal() throws ControlLoopException {
 228                 //
 229                 // Check if they activated us
 230                 //
 231                 if (this.isActivated == false) {
 232                         throw new ControlLoopException("ControlLoopEventManager MUST be activated first.");
 233                 }
 234                 //
 235                 // Make sure we are expecting this call.
 236                 //
 237                 if (this.onset == null) {
 238                         throw new ControlLoopException("No onset event for ControlLoopEventManager.");
 239                 }
 240                 //
 241                 // Ok, start creating the notification
 242                 //
 243                 VirtualControlLoopNotification notification = new VirtualControlLoopNotification(this.onset);
 244                 //
 245                 // Check if the overall control loop has timed out
 246                 //
 247                 if (this.isControlLoopTimedOut()) {
 248                         //
 249                         // Yes we have timed out
 250                         //
 251                         notification.notification = ControlLoopNotificationType.FINAL_FAILURE;
 252                         notification.message = "Control Loop timed out";
 253                         notification.history.addAll(this.controlLoopHistory);
 254                         return notification;
 255                 }
 256                 //
 257                 // Check if the current policy is Final
 258                 //
 259                 FinalResult result = this.processor.checkIsCurrentPolicyFinal();
 260                 if (result == null) {
 261                         //
 262                         // we are not at a final result
 263                         //
 264                         return null;
 265                 }
 266
 267                 switch (result) {
 268                 case FINAL_FAILURE:
 269                 case FINAL_FAILURE_EXCEPTION:
 270                 case FINAL_FAILURE_RETRIES:
 271                 case FINAL_FAILURE_TIMEOUT:
 272                 case FINAL_FAILURE_GUARD:
 273                         notification.notification = ControlLoopNotificationType.FINAL_FAILURE;
 274                         break;
 275                 case FINAL_OPENLOOP:
 276                         notification.notification = ControlLoopNotificationType.FINAL_OPENLOOP;
 277                         break;
 278                 case FINAL_SUCCESS:
 279                         notification.notification = ControlLoopNotificationType.FINAL_SUCCESS;
 280                         break;
 281                 default:
 282                         return null;
 283                 }
 284                 //
 285                 // Be sure to add all the history
 286                 //
 287                 notification.history.addAll(this.controlLoopHistory);
 288                 return notification;
 289         }
 290
 291         public ControlLoopOperationManager      processControlLoop() throws ControlLoopException {
 292                 //
 293                 // Check if they activated us
 294                 //
 295                 if (this.isActivated == false) {
 296                         throw new ControlLoopException("ControlLoopEventManager MUST be activated first.");
 297                 }
 298                 //
 299                 // Make sure we are expecting this call.
 300                 //
 301                 if (this.onset == null) {
 302                         throw new ControlLoopException("No onset event for ControlLoopEventManager.");
 303                 }
 304                 //
 305                 // Is there a current operation?
 306                 //
 307                 if (this.currentOperation != null) {
 308                         //
 309                         // Throw an exception, or simply return the current operation?
 310                         //
 311                         throw new ControlLoopException("Already working an Operation, do not call this method.");
 312                 }
 313                 //
 314                 // Ensure we are not FINAL
 315                 //
 316                 VirtualControlLoopNotification notification = this.isControlLoopFinal();
 317                 if (notification != null) {
 318                         //
 319                         // This is weird, we require them to call the isControlLoopFinal() method first
 320                         //
 321                         // We should really abstract this and avoid throwing an exception, because it really
 322                         // isn't an exception.
 323                         //
 324                         throw new ControlLoopException("Control Loop is in FINAL state, do not call this method.");
 325                 }
 326                 //
 327                 // Not final so get the policy that needs to be worked on.
 328                 //
 329                 Policy policy = this.processor.getCurrentPolicy();
 330                 if (policy == null) {
 331                         throw new ControlLoopException("ControlLoopEventManager: processor came upon null Policy.");
 332                 }
 333                 //
 334                 // And setup an operation
 335                 //
 336                 this.currentOperation = new ControlLoopOperationManager(this.onset, policy, this);
 337                 //
 338                 // Return it
 339                 //
 340                 return this.currentOperation;
 341         }
 342
 343         public void finishOperation(ControlLoopOperationManager operation) throws ControlLoopException {
 344                 //
 345                 // Verify we have a current operation
 346                 //
 347                 if (this.currentOperation != null) {
 348                         //
 349                         // Validate they are finishing the current operation
 350                         // PLD - this is simply comparing the policy. Do we want to equals the whole object?
 351                         //
 352                         if (this.currentOperation.policy.equals(operation.policy)) {
 353                                 logger.debug("Finishing {} result is {}", this.currentOperation.policy.getRecipe(), this.currentOperation.getOperationResult());
 354                                 //
 355                                 // Save history
 356                                 //
 357                                 this.controlLoopHistory.addAll(this.currentOperation.getHistory());
 358                                 //
 359                                 // Move to the next Policy
 360                                 //
 361                                 this.processor.nextPolicyForResult(this.currentOperation.getOperationResult());
 362                                 //
 363                                 // Just null this out
 364                                 //
 365                                 this.currentOperation = null;
 366                                 //
 367                                 // TODO: Release our lock
 368                                 //
 369                                 return;
 370                         }
 371                         logger.debug("Cannot finish current operation {} does not match given operation {}", this.currentOperation.policy, operation.policy);
 372                         return;
 373                 }
 374                 throw new ControlLoopException("No operation to finish.");
 375         }
 376
 377         public synchronized LockResult<GuardResult, TargetLock> lockCurrentOperation() throws ControlLoopException {
 378                 //
 379                 // Sanity check
 380                 //
 381                 if (this.currentOperation == null) {
 382                         throw new ControlLoopException("Do not have a current operation.");
 383                 }
 384                 //
 385                 // Have we acquired it already?
 386                 //
 387                 if (this.targetLock != null) {
 388                         //
 389                         // TODO: Make sure the current lock is for the same target.
 390                         // Currently, it should be. But in the future it may not.
 391                         //
 392                         return new LockResult<GuardResult, TargetLock>(GuardResult.LOCK_ACQUIRED, this.targetLock);
 393                 } else {
 394                         //
 395                         // Ask the Guard
 396                         //
 397                         LockResult<GuardResult, TargetLock> lockResult = PolicyGuard.lockTarget(
 398                                                                                                                                                 this.currentOperation.policy.getTarget().getType(),
 399                                                                                                                                                 this.getTargetInstance(this.currentOperation.policy),
 400                                                                                                                                                 this.onset.requestID,
 401                                                                                                                                                 this);
 402                         //
 403                         // Was it acquired?
 404                         //
 405                         if (lockResult.getA().equals(GuardResult.LOCK_ACQUIRED)) {
 406                                 //
 407                                 // Yes, let's save it
 408                                 //
 409                                 this.targetLock = lockResult.getB();
 410                         }
 411                         return lockResult;
 412                 }
 413         }
 414
 415         public synchronized TargetLock unlockCurrentOperation() {
 416                 if (this.targetLock == null) {
 417                         return null;
 418                 }
 419                 if (PolicyGuard.unlockTarget(this.targetLock) == true) {
 420                         TargetLock returnLock = this.targetLock;
 421                         this.targetLock = null;
 422                         return returnLock;
 423                 }
 424                 return null;
 425         }
 426
 427         public enum NEW_EVENT_STATUS {
 428                 FIRST_ONSET,
 429                 SUBSEQUENT_ONSET,
 430                 FIRST_ABATEMENT,
 431                 SUBSEQUENT_ABATEMENT,
 432                 SYNTAX_ERROR
 433                 ;
 434         }
 435
 436         public NEW_EVENT_STATUS onNewEvent(VirtualControlLoopEvent event) {
 437                 try {
 438                         this.checkEventSyntax(event);
 439                         if (event.closedLoopEventStatus == ControlLoopEventStatus.ONSET) {
 440                                 //
 441                                 // Check if this is our original ONSET
 442                                 //
 443                                 if (event.equals(this.onset)) {
 444                                         //
 445                                         // DO NOT retract it
 446                                         //
 447                                         return NEW_EVENT_STATUS.FIRST_ONSET;
 448                                 }
 449                                 //
 450                                 // Log that we got an onset
 451                                 //
 452                                 this.numOnsets++;
 453                                 return NEW_EVENT_STATUS.SUBSEQUENT_ONSET;
 454                         } else if (event.closedLoopEventStatus == ControlLoopEventStatus.ABATED) {
 455                                 //
 456                                 // Have we already got an abatement?
 457                                 //
 458                                 if (this.abatement == null) {
 459                                         //
 460                                         // Save this
 461                                         //
 462                                         this.abatement = event;
 463                                         //
 464                                         // Keep track that we received another
 465                                         //
 466                                         this.numAbatements++;
 467                                         //
 468                                         //
 469                                         //
 470                                         return NEW_EVENT_STATUS.FIRST_ABATEMENT;
 471                                 } else {
 472                                         //
 473                                         // Keep track that we received another
 474                                         //
 475                                         this.numAbatements++;
 476                                         //
 477                                         //
 478                                         //
 479                                         return NEW_EVENT_STATUS.SUBSEQUENT_ABATEMENT;
 480                                 }
 481                         } else {
 482                                 return NEW_EVENT_STATUS.SYNTAX_ERROR;
 483                         }
 484                 } catch (ControlLoopException e) {
 485                         logger.error("{}: onNewEvent threw: ",this, e);
 486                         return NEW_EVENT_STATUS.SYNTAX_ERROR;
 487                 }
 488         }
 489
 490         public VirtualControlLoopNotification setControlLoopTimedOut() {
 491                 this.controlLoopTimedOut = FinalResult.FINAL_FAILURE_TIMEOUT;
 492                 VirtualControlLoopNotification notification = new VirtualControlLoopNotification(this.onset);
 493                 notification.notification = ControlLoopNotificationType.FINAL_FAILURE;
 494                 notification.message = "Control Loop timed out";
 495                 notification.history.addAll(this.controlLoopHistory);
 496                 return notification;
 497         }
 498
 499         public boolean isControlLoopTimedOut() {
 500                 return (this.controlLoopTimedOut == FinalResult.FINAL_FAILURE_TIMEOUT);
 501         }
 502
 503         public int      getControlLoopTimeout(Integer defaultTimeout) {
 504                 if (this.processor != null && this.processor.getControlLoop() != null) {
 505                         return this.processor.getControlLoop().getTimeout();
 506                 }
 507                 if (defaultTimeout != null) {
 508                         return defaultTimeout;
 509                 }
 510                 return 0;
 511         }
 512
 513         public AAIGETVnfResponse getVnfResponse() {
 514                 return vnfResponse;
 515         }
 516
 517         public AAIGETVserverResponse getVserverResponse() {
 518                 return vserverResponse;
 519         }
 520
 521         public void checkEventSyntax(VirtualControlLoopEvent event) throws ControlLoopException {
 522                 if (event.closedLoopEventStatus == null ||
 523                                 (event.closedLoopEventStatus != ControlLoopEventStatus.ONSET &&
 524                                 event.closedLoopEventStatus != ControlLoopEventStatus.ABATED)) {
 525                         throw new ControlLoopException("Invalid value in closedLoopEventStatus");
 526                 }
 527                 if (event.closedLoopControlName == null || event.closedLoopControlName.length() < 1) {
 528                         throw new ControlLoopException("No control loop name");
 529                 }
 530                 if (event.requestID == null) {
 531                         throw new ControlLoopException("No request ID");
 532                 }
 533                 if (event.AAI == null) {
 534                         throw new ControlLoopException("AAI is null");
 535                 }
 536                 if (event.AAI.get("generic-vnf.vnf-id") == null && event.AAI.get("vserver.vserver-name") == null &&
 537                         event.AAI.get("generic-vnf.vnf-name") == null) {
 538                         throw new ControlLoopException("generic-vnf.vnf-id or generic-vnf.vnf-name or vserver.vserver-name information missing");
 539                 }
 540                 if (event.AAI.get("vserver.is-closed-loop-disabled") == null) {
 541                         try {
 542                                 if (event.AAI.get("generic-vnf.vnf-id") != null) {
 543                                vnfResponse = getAAIVnfInfo(event);
 544                                if (vnfResponse == null) {
 545                                    throw new ControlLoopException("AAI Response is null (query by vnf-id)");
 546                                }
 547                                if (isClosedLoopDisabled(vnfResponse) == true) {
 548                                            throw new ControlLoopException("is-closed-loop-disabled is set to true");
 549                                }
 550                                 } else if (event.AAI.get("generic-vnf.vnf-name") != null) {
 551                                     vnfResponse = getAAIVnfInfo(event);
 552                                     if (vnfResponse == null) {
 553                                         throw new ControlLoopException("AAI Response is null (query by vnf-name)");
 554                                     }
 555                                     if (isClosedLoopDisabled(vnfResponse) == true) {
 556                                                 throw new ControlLoopException("is-closed-loop-disabled is set to true");
 557                                     }
 558                                 } else if (event.AAI.get("vserver.vserver-name") != null) {
 559                                     vserverResponse = getAAIVserverInfo(event);
 560                                     if (vserverResponse == null) {
 561                                        throw new ControlLoopException("AAI Response is null (query by vserver-name)");
 562                                     }
 563                                     if (isClosedLoopDisabled(vserverResponse) == true) {
 564                                                 throw new ControlLoopException("is-closed-loop-disabled is set to true");
 565                                     }
 566                                 }
 567                         } catch (Exception e) {
 568                                 logger.error("Exception from getAAIInfo: ", e);
 569                                 throw new ControlLoopException("Exception from getAAIInfo: " + e.toString());
 570                         }
 571                 } else if (isClosedLoopDisabled(event)) {
 572                         throw new ControlLoopException("is-closed-loop-disabled is set to true");
 573                 }
 574                 if (event.target == null || event.target.length() < 1) {
 575                         throw new ControlLoopException("No target field");
 576                 } else {
 577                         if (! event.target.equalsIgnoreCase("VM_NAME") &&
 578                                 ! event.target.equalsIgnoreCase("VNF_NAME") &&
 579                                 ! event.target.equalsIgnoreCase("vserver.vserver-name") &&
 580                                 ! event.target.equalsIgnoreCase("generic-vnf.vnf-id") &&
 581                                 ! event.target.equalsIgnoreCase("generic-vnf.vnf-name") ) {
 582                                 throw new ControlLoopException("target field invalid - expecting VM_NAME or VNF_NAME");
 583                         }
 584                 }
 585         }
 586
 587         public static boolean isClosedLoopDisabled(AAIGETVnfResponse aaiResponse) {
 588         if (aaiResponse != null && aaiResponse.isClosedLoopDisabled != null) {
 589                 String value = aaiResponse.isClosedLoopDisabled;
 590                 if ("true".equalsIgnoreCase(value) || "T".equalsIgnoreCase(value) ||
 591                         "yes".equalsIgnoreCase(value)  || "Y".equalsIgnoreCase(value)) {
 592                         return true;
 593                 }
 594         }
 595
 596                 return false;
 597         }
 598
 599         public static boolean isClosedLoopDisabled(AAIGETVserverResponse aaiResponse) {
 600         if (aaiResponse != null && aaiResponse.isClosedLoopDisabled != null) {
 601                 String value = aaiResponse.isClosedLoopDisabled;
 602                 if ("true".equalsIgnoreCase(value) || "T".equalsIgnoreCase(value) ||
 603                         "yes".equalsIgnoreCase(value)  || "Y".equalsIgnoreCase(value)) {
 604                         return true;
 605                 }
 606         }
 607
 608                 return false;
 609         }
 610
 611         public static boolean isClosedLoopDisabled(VirtualControlLoopEvent event) {
 612                 if ("true".equalsIgnoreCase(event.AAI.get("vserver.is-closed-loop-disabled")) ||
 613                     "T".equalsIgnoreCase(event.AAI.get("vserver.is-closed-loop-disabled")) ||
 614                     "yes".equalsIgnoreCase(event.AAI.get("vserver.is-closed-loop-disabled")) ||
 615                     "Y".equalsIgnoreCase(event.AAI.get("vserver.is-closed-loop-disabled"))) {
 616                         return true;
 617                 }
 618                 return false;
 619         }
 620
 621         public static AAIGETVserverResponse getAAIVserverInfo(VirtualControlLoopEvent event) throws ControlLoopException {
 622                 UUID requestID = event.requestID;
 623                 AAIGETVserverResponse response = null;
 624                 String vserverName = event.AAI.get("vserver.vserver-name");
 625
 626                 try {
 627                 if (vserverName != null) {
 628                    aaiHostURL  = PolicyEngine.manager.getEnvironmentProperty("aai.url");
 629                    aaiUser     = PolicyEngine.manager.getEnvironmentProperty("aai.username");
 630                    aaiPassword = PolicyEngine.manager.getEnvironmentProperty("aai.password");
 631                    String aaiGetQueryByVserver = "/aai/v11/nodes/vservers?vserver-name=";
 632                            String url = aaiHostURL + aaiGetQueryByVserver;
 633                            logger.info("url: " + url);
 634                            response = AAIManager.getQueryByVserverName(url, aaiUser, aaiPassword, requestID, vserverName);
 635                 }
 636             } catch (Exception e) {
 637                 logger.error("getAAIVserverInfo exception: ", e);
 638                 throw new ControlLoopException("Exception in getAAIVserverInfo: ", e);
 639         }
 640
 641                 return response;
 642         }
 643
 644         public static AAIGETVnfResponse getAAIVnfInfo(VirtualControlLoopEvent event) throws ControlLoopException {
 645                 UUID requestID = event.requestID;
 646                 AAIGETVnfResponse response = null;
 647                 String vnfName = event.AAI.get("generic-vnf.vnf-name");
 648                 String vnfID   = event.AAI.get("generic-vnf.vnf-id");
 649
 650                 aaiHostURL  = PolicyEngine.manager.getEnvironmentProperty("aai.url");
 651         aaiUser     = PolicyEngine.manager.getEnvironmentProperty("aai.username");
 652         aaiPassword = PolicyEngine.manager.getEnvironmentProperty("aai.password");
 653
 654                 try {
 655             if (vnfName != null) {
 656                    String aaiGetQueryByVnfName = "/aai/v11/network/generic-vnfs/generic-vnf?vnf-name=";
 657                            String url = aaiHostURL + aaiGetQueryByVnfName;
 658                            logger.info("url: " + url);
 659                            response = AAIManager.getQueryByVnfName(url, aaiUser, aaiPassword, requestID, vnfName);
 660                 } else if (vnfID != null) {
 661                        String aaiGetQueryByVnfID = "/aai/v11/network/generic-vnfs/generic-vnf/";
 662                            String url = aaiHostURL + aaiGetQueryByVnfID;
 663                            logger.info("url: " + url);
 664                            response = AAIManager.getQueryByVnfID(url, aaiUser, aaiPassword, requestID, vnfID);
 665                 }
 666             } catch (Exception e) {
 667                 logger.error("getAAIVnfInfo exception: ", e);
 668                 throw new ControlLoopException("Exception in getAAIVnfInfo: ", e);
 669         }
 670
 671                 return response;
 672         }
 673
 674         @Override
 675         public boolean isActive() {
 676                 // TODO
 677                 return true;
 678         }
 679
 680         @Override
 681         public boolean releaseLock() {
 682                 // TODO
 683                 return false;
 684         }
 685
 686         public String getTargetInstance(Policy policy) {
 687                 if (policy.getTarget() != null) {
 688                         if (policy.getTarget().getType() != null) {
 689                                 switch(policy.getTarget().getType()) {
 690                                 case PNF:
 691                                         break;
 692                                 case VM:
 693                                 case VNF:
 694                                         if (this.onset.target.equalsIgnoreCase("vserver.vserver-name")) {
 695                                                 return this.onset.AAI.get("vserver.vserver-name");
 696                                         }
 697                                         else if (this.onset.target.equalsIgnoreCase("generic-vnf.vnf-id")) {
 698                                             return this.onset.AAI.get("generic-vnf.vnf-id");
 699                                         }
 700                                         else if (this.onset.target.equalsIgnoreCase("generic-vnf.vnf-name")) {
 701                                             return this.onset.AAI.get("generic-vnf.vnf-name");
 702                                         }
 703                                         break;
 704                                 default:
 705                                         break;
 706                                 }
 707                         }
 708                 }
 709                 return null;
 710         }
 711
 712         @Override
 713         public String toString() {
 714                 return "ControlLoopEventManager [closedLoopControlName=" + closedLoopControlName + ", requestID=" + requestID
 715                                 + ", processor=" + processor + ", onset=" + (onset != null ? onset.requestID : "null") + ", numOnsets=" + numOnsets + ", numAbatements="
 716                                 + numAbatements + ", isActivated="
 717                                 + isActivated + ", currentOperation=" + currentOperation + ", targetLock=" + targetLock + "]";
 718         }
 719
 720 }