ms/blueprintsprocessor/functions/resource-resolution/src/main/kotlin/org/onap/ccsdk/cds/blueprintsprocessor/functions/resource/resolution/ResourceResolutionService.kt

   1 /*
   2  *  Copyright © 2017-2018 AT&T Intellectual Property.
   3  *  Modifications Copyright © 2018-2019 IBM, Bell Canada
   4  *
   5  *  Licensed under the Apache License, Version 2.0 (the "License");
   6  *  you may not use this file except in compliance with the License.
   7  *  You may obtain a copy of the License at
   8  *
   9  *      http://www.apache.org/licenses/LICENSE-2.0
  10  *
  11  *  Unless required by applicable law or agreed to in writing, software
  12  *  distributed under the License is distributed on an "AS IS" BASIS,
  13  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14  *  See the License for the specific language governing permissions and
  15  *  limitations under the License.
  16  */
  17
  18 package org.onap.ccsdk.cds.blueprintsprocessor.functions.resource.resolution
  19
  20 import com.fasterxml.jackson.databind.JsonNode
  21 import kotlinx.coroutines.async
  22 import kotlinx.coroutines.awaitAll
  23 import kotlinx.coroutines.coroutineScope
  24 import org.onap.ccsdk.cds.blueprintsprocessor.functions.resource.resolution.db.ResourceResolution
  25 import org.onap.ccsdk.cds.blueprintsprocessor.functions.resource.resolution.db.ResourceResolutionDBService
  26 import org.onap.ccsdk.cds.blueprintsprocessor.functions.resource.resolution.db.TemplateResolutionService
  27 import org.onap.ccsdk.cds.blueprintsprocessor.functions.resource.resolution.processor.ResourceAssignmentProcessor
  28 import org.onap.ccsdk.cds.blueprintsprocessor.functions.resource.resolution.utils.ResourceAssignmentUtils
  29 import org.onap.ccsdk.cds.blueprintsprocessor.functions.resource.resolution.utils.ResourceDefinitionUtils.createResourceAssignments
  30 import org.onap.ccsdk.cds.controllerblueprints.core.BluePrintConstants
  31 import org.onap.ccsdk.cds.controllerblueprints.core.BluePrintProcessorException
  32 import org.onap.ccsdk.cds.controllerblueprints.core.asJsonNode
  33 import org.onap.ccsdk.cds.controllerblueprints.core.asJsonPrimitive
  34 import org.onap.ccsdk.cds.controllerblueprints.core.asJsonType
  35 import org.onap.ccsdk.cds.controllerblueprints.core.checkNotEmpty
  36 import org.onap.ccsdk.cds.controllerblueprints.core.common.ApplicationConstants.LOG_REDACTED
  37 import org.onap.ccsdk.cds.controllerblueprints.core.service.BluePrintRuntimeService
  38 import org.onap.ccsdk.cds.controllerblueprints.core.service.BluePrintTemplateService
  39 import org.onap.ccsdk.cds.controllerblueprints.core.utils.JacksonUtils
  40 import org.onap.ccsdk.cds.controllerblueprints.core.utils.PropertyDefinitionUtils.Companion.hasLogProtect
  41 import org.onap.ccsdk.cds.controllerblueprints.resource.dict.ResourceAssignment
  42 import org.onap.ccsdk.cds.controllerblueprints.resource.dict.ResourceDefinition
  43 import org.onap.ccsdk.cds.controllerblueprints.resource.dict.utils.BulkResourceSequencingUtils
  44 import org.slf4j.LoggerFactory
  45 import org.springframework.context.ApplicationContext
  46 import org.springframework.stereotype.Service
  47 import java.util.UUID
  48
  49 data class ResourceResolutionResult(
  50     val templateMap: MutableMap<String, String>,
  51     val assignmentMap: MutableMap<String, JsonNode>
  52 )
  53
  54 interface ResourceResolutionService {
  55
  56     fun registeredResourceSources(): List<String>
  57
  58     suspend fun resolveFromDatabase(
  59         bluePrintRuntimeService: BluePrintRuntimeService<*>,
  60         artifactTemplate: String,
  61         resolutionKey: String
  62     ): String
  63
  64     suspend fun resolveResolutionKeysFromDatabase(
  65         bluePrintRuntimeService: BluePrintRuntimeService<*>,
  66         artifactTemplate: String
  67     ): List<String>
  68
  69     suspend fun resolveArtifactNamesAndResolutionKeysFromDatabase(
  70         bluePrintRuntimeService: BluePrintRuntimeService<*>
  71     ): Map<String, List<String>>
  72
  73     suspend fun resolveResources(
  74         bluePrintRuntimeService: BluePrintRuntimeService<*>,
  75         nodeTemplateName: String,
  76         artifactNames: List<String>,
  77         properties: Map<String, Any>,
  78         stepName: String
  79     ): ResourceResolutionResult
  80
  81     suspend fun resolveResources(
  82         bluePrintRuntimeService: BluePrintRuntimeService<*>,
  83         nodeTemplateName: String,
  84         artifactPrefix: String,
  85         properties: Map<String, Any>
  86     ): Pair<String, MutableList<ResourceAssignment>>
  87
  88     /** Resolve resources for all the sources defined in a particular resource Definition[resolveDefinition]
  89      * with other [resourceDefinitions] dependencies for the sources [sources]
  90      * Used to get the same resource values from multiple sources. **/
  91     suspend fun resolveResourceDefinition(
  92         blueprintRuntimeService: BluePrintRuntimeService<*>,
  93         resourceDefinitions: MutableMap<String, ResourceDefinition>,
  94         resolveDefinition: String,
  95         sources: List<String>
  96     ):
  97         MutableMap<String, JsonNode>
  98
  99     suspend fun resolveResourceAssignments(
 100         blueprintRuntimeService: BluePrintRuntimeService<*>,
 101         resourceDefinitions: MutableMap<String, ResourceDefinition>,
 102         resourceAssignments: MutableList<ResourceAssignment>,
 103         artifactPrefix: String,
 104         properties: Map<String, Any>
 105     )
 106 }
 107
 108 @Service(ResourceResolutionConstants.SERVICE_RESOURCE_RESOLUTION)
 109 open class ResourceResolutionServiceImpl(
 110     private var applicationContext: ApplicationContext,
 111     private var templateResolutionDBService: TemplateResolutionService,
 112     private var blueprintTemplateService: BluePrintTemplateService,
 113     private var resourceResolutionDBService: ResourceResolutionDBService
 114 ) :
 115     ResourceResolutionService {
 116
 117     private val log = LoggerFactory.getLogger(ResourceResolutionService::class.java)
 118
 119     override fun registeredResourceSources(): List<String> {
 120         return applicationContext.getBeanNamesForType(ResourceAssignmentProcessor::class.java)
 121             .filter { it.startsWith(ResourceResolutionConstants.PREFIX_RESOURCE_RESOLUTION_PROCESSOR) }
 122             .map { it.substringAfter(ResourceResolutionConstants.PREFIX_RESOURCE_RESOLUTION_PROCESSOR) }
 123     }
 124
 125     override suspend fun resolveFromDatabase(
 126         bluePrintRuntimeService: BluePrintRuntimeService<*>,
 127         artifactTemplate: String,
 128         resolutionKey: String
 129     ): String {
 130         return templateResolutionDBService.findByResolutionKeyAndBlueprintNameAndBlueprintVersionAndArtifactName(
 131             bluePrintRuntimeService,
 132             artifactTemplate,
 133             resolutionKey
 134         )
 135     }
 136
 137     override suspend fun resolveResolutionKeysFromDatabase(
 138         bluePrintRuntimeService: BluePrintRuntimeService<*>,
 139         artifactTemplate: String
 140     ): List<String> {
 141         return templateResolutionDBService.findResolutionKeysByBlueprintNameAndBlueprintVersionAndArtifactName(
 142             bluePrintRuntimeService,
 143             artifactTemplate
 144         )
 145     }
 146
 147     override suspend fun resolveArtifactNamesAndResolutionKeysFromDatabase(
 148         bluePrintRuntimeService: BluePrintRuntimeService<*>
 149     ): Map<String, List<String>> {
 150         return templateResolutionDBService.findArtifactNamesAndResolutionKeysByBlueprintNameAndBlueprintVersion(
 151             bluePrintRuntimeService
 152         )
 153     }
 154
 155     override suspend fun resolveResources(
 156         bluePrintRuntimeService: BluePrintRuntimeService<*>,
 157         nodeTemplateName: String,
 158         artifactNames: List<String>,
 159         properties: Map<String, Any>,
 160         stepName: String
 161     ): ResourceResolutionResult {
 162
 163         val resourceAssignmentRuntimeService =
 164             ResourceAssignmentUtils.transformToRARuntimeService(bluePrintRuntimeService, artifactNames.toString())
 165
 166         val templateMap: MutableMap<String, String> = hashMapOf()
 167         val assignmentMap: MutableMap<String, JsonNode> = hashMapOf()
 168         artifactNames.forEach { artifactName ->
 169             val (resolvedStringContent, resourceAssignmentList) = resolveResources(
 170                 resourceAssignmentRuntimeService, nodeTemplateName,
 171                 artifactName, properties
 172             )
 173             val resolvedJsonContent = resourceAssignmentList
 174                 .associateBy({ it.name }, { it.property?.value })
 175                 .asJsonNode()
 176
 177             templateMap[artifactName] = resolvedStringContent
 178             assignmentMap[artifactName] = resolvedJsonContent
 179
 180             val failedResolution = resourceAssignmentList.filter { it.status != "success" && it.property?.required == true }.map { it.name }
 181             if (failedResolution.isNotEmpty()) {
 182                 val errorMessages = mutableListOf("Failed to resolve required values: $failedResolution").apply {
 183                     this.addAll(resourceAssignmentRuntimeService.getBluePrintError().allErrors())
 184                 }
 185                 bluePrintRuntimeService.getBluePrintError().addErrors(stepName, errorMessages)
 186             }
 187         }
 188         return ResourceResolutionResult(templateMap, assignmentMap)
 189     }
 190
 191     override suspend fun resolveResources(
 192         bluePrintRuntimeService: BluePrintRuntimeService<*>,
 193         nodeTemplateName: String,
 194         artifactPrefix: String,
 195         properties: Map<String, Any>
 196     ): Pair<String, MutableList<ResourceAssignment>> {
 197
 198         // Template Artifact Definition Name
 199         val artifactTemplate = "$artifactPrefix-template"
 200         // Resource Assignment Artifact Definition Name
 201         val artifactMapping = "$artifactPrefix-mapping"
 202         val forceResolution = isForceResolution(properties)
 203
 204         val propertiesMutableMap = properties.toMutableMap()
 205         log.info("Resolving resource with resource assignment artifact($artifactMapping)")
 206
 207         val resourceAssignmentContent =
 208             bluePrintRuntimeService.resolveNodeTemplateArtifact(nodeTemplateName, artifactMapping)
 209
 210         val resourceAssignments: MutableList<ResourceAssignment> =
 211             JacksonUtils.getListFromJson(resourceAssignmentContent, ResourceAssignment::class.java)
 212                 as? MutableList<ResourceAssignment>
 213                 ?: throw BluePrintProcessorException("couldn't get Dictionary Definitions")
 214
 215         if (isToStore(properties)) {
 216             val alwaysPerformNewResolution = properties[ResourceResolutionConstants.RESOURCE_RESOLUTION_INPUT_OCCURRENCE] as Int <= 0
 217             val existingResourceResolution = if (alwaysPerformNewResolution) {
 218                 val occurrence = findNextOccurrence(bluePrintRuntimeService, properties, artifactPrefix)
 219                 log.info("Always perform new resolutions  - next occurrence: $occurrence")
 220                 propertiesMutableMap[ResourceResolutionConstants.RESOURCE_RESOLUTION_INPUT_OCCURRENCE] = occurrence
 221                 // Since we are performing new resolution, simply pass empty list.
 222                 emptyList()
 223             } else {
 224                 isNewResolution(bluePrintRuntimeService, properties, artifactPrefix)
 225             }
 226             if (existingResourceResolution.isNotEmpty()) {
 227                 if (forceResolution) {
 228                     resourceResolutionDBService.deleteResourceResolutionList(existingResourceResolution)
 229                     log.info("Force resolution is enabled - will resolve all resources.")
 230                 } else {
 231                     updateResourceAssignmentWithExisting(
 232                         bluePrintRuntimeService as ResourceAssignmentRuntimeService,
 233                         existingResourceResolution, resourceAssignments
 234                     )
 235                     log.info("Force resolution is disabled - will resolve all resources not already resolved.")
 236                 }
 237             }
 238         }
 239
 240         // Get the Resource Dictionary Name
 241         val resourceDefinitions: MutableMap<String, ResourceDefinition> = ResourceAssignmentUtils
 242             .resourceDefinitions(bluePrintRuntimeService.bluePrintContext().rootPath)
 243
 244         // Resolve resources
 245         resolveResourceAssignments(
 246             bluePrintRuntimeService,
 247             resourceDefinitions,
 248             resourceAssignments,
 249             artifactPrefix,
 250             propertiesMutableMap
 251         )
 252
 253         val resolutionSummary = properties.getOrDefault(
 254             ResourceResolutionConstants.RESOURCE_RESOLUTION_INPUT_RESOLUTION_SUMMARY,
 255             false
 256         ) as Boolean
 257
 258         val resolvedParamJsonContent =
 259             ResourceAssignmentUtils.generateResourceDataForAssignments(resourceAssignments.toList())
 260         val artifactTemplateDefinition =
 261             bluePrintRuntimeService.bluePrintContext().checkNodeTemplateArtifact(nodeTemplateName, artifactTemplate)
 262
 263         val resolvedContent = when {
 264             artifactTemplateDefinition != null -> {
 265                 blueprintTemplateService.generateContent(
 266                     bluePrintRuntimeService, nodeTemplateName,
 267                     artifactTemplate, resolvedParamJsonContent, false,
 268                     mutableMapOf(
 269                         ResourceResolutionConstants.RESOURCE_RESOLUTION_INPUT_OCCURRENCE to
 270                             properties[ResourceResolutionConstants.RESOURCE_RESOLUTION_INPUT_OCCURRENCE]
 271                                 .asJsonPrimitive()
 272                     )
 273                 )
 274             }
 275             resolutionSummary -> {
 276                 ResourceAssignmentUtils.generateResolutionSummaryData(resourceAssignments, resourceDefinitions)
 277             }
 278             else -> {
 279                 resolvedParamJsonContent
 280             }
 281         }
 282
 283         if (isToStore(properties)) {
 284             templateResolutionDBService.write(propertiesMutableMap, resolvedContent, bluePrintRuntimeService, artifactPrefix)
 285             log.info("Template resolution saved into database successfully : ($properties)")
 286         }
 287
 288         return Pair(resolvedContent, resourceAssignments)
 289     }
 290
 291     override suspend fun resolveResourceDefinition(
 292         blueprintRuntimeService: BluePrintRuntimeService<*>,
 293         resourceDefinitions: MutableMap<String, ResourceDefinition>,
 294         resolveDefinition: String,
 295         sources: List<String>
 296     ): MutableMap<String, JsonNode> {
 297
 298         // Populate Dummy Resource Assignments
 299         val resourceAssignments = createResourceAssignments(resourceDefinitions, resolveDefinition, sources)
 300
 301         resolveResourceAssignments(
 302             blueprintRuntimeService, resourceDefinitions, resourceAssignments,
 303             UUID.randomUUID().toString(), hashMapOf()
 304         )
 305
 306         // Get the data from Resource Assignments
 307         return ResourceAssignmentUtils.generateResourceForAssignments(resourceAssignments)
 308     }
 309
 310     /**
 311      * Iterate the Batch, get the Resource Assignment, dictionary Name, Look for the Resource definition for the
 312      * name, then get the type of the Resource Definition, Get the instance for the Resource Type and process the
 313      * request.
 314      */
 315     override suspend fun resolveResourceAssignments(
 316         blueprintRuntimeService: BluePrintRuntimeService<*>,
 317         resourceDefinitions: MutableMap<String, ResourceDefinition>,
 318         resourceAssignments: MutableList<ResourceAssignment>,
 319         artifactPrefix: String,
 320         properties: Map<String, Any>
 321     ) {
 322
 323         val bulkSequenced = BulkResourceSequencingUtils.process(resourceAssignments)
 324
 325         // Check the BlueprintRuntime Service Should be ResourceAssignmentRuntimeService
 326         val resourceAssignmentRuntimeService = if (blueprintRuntimeService !is ResourceAssignmentRuntimeService) {
 327             ResourceAssignmentUtils.transformToRARuntimeService(blueprintRuntimeService, artifactPrefix)
 328         } else {
 329             blueprintRuntimeService
 330         }
 331
 332         exposeOccurrencePropertyInResourceAssignments(resourceAssignmentRuntimeService, properties)
 333
 334         coroutineScope {
 335             bulkSequenced.forEach { batchResourceAssignments ->
 336                 // Execute Non Dependent Assignments in parallel ( ie asynchronously )
 337                 val deferred = batchResourceAssignments
 338                     .filter { it.name != "*" && it.name != "start" }
 339                     .filter { it.status != BluePrintConstants.STATUS_SUCCESS }
 340                     .map { resourceAssignment ->
 341                         async {
 342                             val dictionaryName = resourceAssignment.dictionaryName
 343                             val dictionarySource = resourceAssignment.dictionarySource
 344
 345                             val processorName = processorName(dictionaryName!!, dictionarySource!!, resourceDefinitions)
 346
 347                             val resourceAssignmentProcessor =
 348                                 applicationContext.getBean(processorName) as? ResourceAssignmentProcessor
 349                                     ?: throw BluePrintProcessorException(
 350                                         "failed to get resource processor ($processorName) " +
 351                                             "for resource assignment(${resourceAssignment.name})"
 352                                     )
 353                             try {
 354                                 // Set BluePrint Runtime Service
 355                                 resourceAssignmentProcessor.raRuntimeService = resourceAssignmentRuntimeService
 356                                 // Set Resource Dictionaries
 357                                 resourceAssignmentProcessor.resourceDictionaries = resourceDefinitions
 358
 359                                 resourceAssignmentProcessor.resourceAssignments = resourceAssignments
 360
 361                                 // Invoke Apply Method
 362                                 resourceAssignmentProcessor.applyNB(resourceAssignment)
 363
 364                                 if (isToStore(properties)) {
 365                                     resourceResolutionDBService.write(
 366                                         properties,
 367                                         blueprintRuntimeService,
 368                                         artifactPrefix,
 369                                         resourceAssignment
 370                                     )
 371                                     log.info("Resource resolution saved into database successfully : (${resourceAssignment.name})")
 372                                 }
 373
 374                                 // Set errors from RA
 375                                 blueprintRuntimeService.setBluePrintError(resourceAssignmentRuntimeService.getBluePrintError())
 376                             } catch (e: RuntimeException) {
 377                                 log.error("Fail in processing ${resourceAssignment.name}", e)
 378                                 throw BluePrintProcessorException(e)
 379                             }
 380                         }
 381                     }
 382                 log.debug("Resolving (${deferred.size})resources parallel.")
 383                 deferred.awaitAll()
 384             }
 385         }
 386     }
 387
 388     /**
 389      * If the Source instance is "input", then it is not mandatory to have source Resource Definition, So it can
 390      *  derive the default input processor.
 391      */
 392     private fun processorName(
 393         dictionaryName: String,
 394         dictionarySource: String,
 395         resourceDefinitions: MutableMap<String, ResourceDefinition>
 396     ): String {
 397         val processorName: String = when (dictionarySource) {
 398             "input" -> {
 399                 "${ResourceResolutionConstants.PREFIX_RESOURCE_RESOLUTION_PROCESSOR}source-input"
 400             }
 401             "default" -> {
 402                 "${ResourceResolutionConstants.PREFIX_RESOURCE_RESOLUTION_PROCESSOR}source-default"
 403             }
 404             else -> {
 405                 val resourceDefinition = resourceDefinitions[dictionaryName]
 406                     ?: throw BluePrintProcessorException("couldn't get resource dictionary definition for $dictionaryName")
 407
 408                 val resourceSource = resourceDefinition.sources[dictionarySource]
 409                     ?: throw BluePrintProcessorException("couldn't get resource definition $dictionaryName source($dictionarySource)")
 410
 411                 ResourceResolutionConstants.PREFIX_RESOURCE_RESOLUTION_PROCESSOR.plus(resourceSource.type)
 412             }
 413         }
 414         checkNotEmpty(processorName) {
 415             "couldn't get processor name for resource dictionary definition($dictionaryName) source($dictionarySource)"
 416         }
 417
 418         return processorName
 419     }
 420
 421     // Check whether to store or not the resolution of resource and template
 422     private fun isToStore(properties: Map<String, Any>): Boolean {
 423         return properties.containsKey(ResourceResolutionConstants.RESOURCE_RESOLUTION_INPUT_STORE_RESULT) &&
 424             properties[ResourceResolutionConstants.RESOURCE_RESOLUTION_INPUT_STORE_RESULT] as Boolean
 425     }
 426
 427     private fun isForceResolution(properties: Map<String, Any>): Boolean =
 428         properties.containsKey(ResourceResolutionConstants.RESOURCE_RESOLUTION_INPUT_FORCE_RESOLUTION) &&
 429             properties[ResourceResolutionConstants.RESOURCE_RESOLUTION_INPUT_FORCE_RESOLUTION] as Boolean
 430
 431     // Check whether resolution already exist in the database for the specified resolution-key or resourceId/resourceType
 432     private suspend fun isNewResolution(
 433         bluePrintRuntimeService: BluePrintRuntimeService<*>,
 434         properties: Map<String, Any>,
 435         artifactPrefix: String
 436     ): List<ResourceResolution> {
 437         val occurrence = properties[ResourceResolutionConstants.RESOURCE_RESOLUTION_INPUT_OCCURRENCE] as Int
 438         val resolutionKey = properties[ResourceResolutionConstants.RESOURCE_RESOLUTION_INPUT_RESOLUTION_KEY] as String
 439         val resourceId = properties[ResourceResolutionConstants.RESOURCE_RESOLUTION_INPUT_RESOURCE_ID] as String
 440         val resourceType = properties[ResourceResolutionConstants.RESOURCE_RESOLUTION_INPUT_RESOURCE_TYPE] as String
 441
 442         if (resolutionKey.isNotEmpty()) {
 443             val existingResourceAssignments =
 444                 resourceResolutionDBService.findByBlueprintNameAndBlueprintVersionAndArtifactNameAndResolutionKeyAndOccurrence(
 445                     bluePrintRuntimeService,
 446                     resolutionKey,
 447                     occurrence,
 448                     artifactPrefix
 449                 )
 450             if (existingResourceAssignments.isNotEmpty()) {
 451                 log.info(
 452                     "Resolution with resolutionKey=($resolutionKey) already exist",
 453                     resolutionKey
 454                 )
 455             }
 456             return existingResourceAssignments
 457         } else if (resourceId.isNotEmpty() && resourceType.isNotEmpty()) {
 458             val existingResourceAssignments =
 459                 resourceResolutionDBService.findByBlueprintNameAndBlueprintVersionAndArtifactNameAndResourceIdAndResourceTypeAndOccurrence(
 460                     bluePrintRuntimeService,
 461                     resourceId,
 462                     resourceType,
 463
 464                     occurrence,
 465                     artifactPrefix
 466                 )
 467             if (existingResourceAssignments.isNotEmpty()) {
 468                 log.info(
 469                     "Resolution with resourceId=($resourceId) and resourceType=($resourceType) already exist"
 470                 )
 471             }
 472             return existingResourceAssignments
 473         }
 474         return emptyList()
 475     }
 476
 477     // Update the resource assignment list with the status of the resource that have already been resolved
 478     private fun updateResourceAssignmentWithExisting(
 479         raRuntimeService: ResourceAssignmentRuntimeService,
 480         resourceResolutionList: List<ResourceResolution>,
 481         resourceAssignmentList: MutableList<ResourceAssignment>
 482     ) {
 483         resourceResolutionList.forEach { resourceResolution ->
 484             if (resourceResolution.status == BluePrintConstants.STATUS_SUCCESS) {
 485                 resourceAssignmentList.forEach {
 486                     if (compareOne(resourceResolution, it)) {
 487                         log.info(
 488                             "Resource ({}) already resolved: value=({})", it.name,
 489                             if (hasLogProtect(it.property)) LOG_REDACTED else resourceResolution.value
 490                         )
 491
 492                         // Make sure to recreate value as per the defined type.
 493                         val value = resourceResolution.value!!.asJsonType(it.property!!.type)
 494                         it.property!!.value = value
 495                         it.status = resourceResolution.status
 496                         ResourceAssignmentUtils.setResourceDataValue(it, raRuntimeService, value)
 497                     }
 498                 }
 499             }
 500         }
 501     }
 502
 503     // Comparison between what we have in the database vs what we have to assign.
 504     private fun compareOne(resourceResolution: ResourceResolution, resourceAssignment: ResourceAssignment): Boolean {
 505         return (
 506             resourceResolution.name == resourceAssignment.name &&
 507                 resourceResolution.dictionaryName == resourceAssignment.dictionaryName &&
 508                 resourceResolution.dictionarySource == resourceAssignment.dictionarySource &&
 509                 resourceResolution.dictionaryVersion == resourceAssignment.version
 510             )
 511     }
 512
 513     private fun exposeOccurrencePropertyInResourceAssignments(
 514         raRuntimeService: ResourceAssignmentRuntimeService,
 515         properties: Map<String, Any>
 516     ) {
 517         raRuntimeService.putResolutionStore(
 518             ResourceResolutionConstants.RESOURCE_RESOLUTION_INPUT_OCCURRENCE,
 519             properties[ResourceResolutionConstants.RESOURCE_RESOLUTION_INPUT_OCCURRENCE].asJsonPrimitive()
 520         )
 521     }
 522
 523     /**
 524      * This method returns 'occurrence' required to persist new resource resolution.
 525      *
 526      * @param bluePrintRuntimeService
 527      * @param properties
 528      * @param artifactPrefix
 529      */
 530     private suspend fun findNextOccurrence(
 531         bluePrintRuntimeService: BluePrintRuntimeService<*>,
 532         properties: Map<String, Any>,
 533         artifactPrefix: String
 534     ): Int {
 535         val metadata = bluePrintRuntimeService.bluePrintContext().metadata!!
 536         val blueprintVersion = metadata[BluePrintConstants.METADATA_TEMPLATE_VERSION]!!
 537         val blueprintName = metadata[BluePrintConstants.METADATA_TEMPLATE_NAME]!!
 538         val resolutionKey = properties[ResourceResolutionConstants.RESOURCE_RESOLUTION_INPUT_RESOLUTION_KEY] as String
 539         val resourceId = properties[ResourceResolutionConstants.RESOURCE_RESOLUTION_INPUT_RESOURCE_ID] as String
 540         val resourceType = properties[ResourceResolutionConstants.RESOURCE_RESOLUTION_INPUT_RESOURCE_TYPE] as String
 541
 542         // This should not happen since the request has already been validated but worth to check it here as well.
 543         if (resourceType.isEmpty() && resourceId.isEmpty() && resolutionKey.isEmpty()) {
 544             throw BluePrintProcessorException(
 545                 "Can't proceed to get next occurrence: " +
 546                     "Either provide a resolution-key OR combination of resource-id and resource-type"
 547             )
 548         }
 549
 550         if (resolutionKey.isNotEmpty()) {
 551             return resourceResolutionDBService.findNextOccurrenceByResolutionKeyAndBlueprintNameAndBlueprintVersionAndArtifactName(
 552                 resolutionKey,
 553                 blueprintName,
 554                 blueprintVersion,
 555                 artifactPrefix
 556             )
 557         } else {
 558             return resourceResolutionDBService.findNextOccurrenceByBlueprintNameAndBlueprintVersionAndResourceIdAndResourceType(
 559                 blueprintName,
 560                 blueprintVersion,
 561                 resourceId,
 562                 resourceType
 563             )
 564         }
 565     }
 566 }