gerrit.onap Code Review - ccsdk/cds.git/blob

   1 /*
   2  *  Copyright © 2018 IBM.
   3  *  Modifications Copyright © 2017-2018 AT&T Intellectual Property, 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.processor
  19
  20 import org.onap.ccsdk.cds.blueprintsprocessor.db.BluePrintDBLibGenericService
  21 import org.onap.ccsdk.cds.blueprintsprocessor.db.primary.BluePrintDBLibPropertySevice
  22 import org.onap.ccsdk.cds.blueprintsprocessor.db.primary.PrimaryDBLibGenericService
  23 import org.onap.ccsdk.cds.blueprintsprocessor.functions.resource.resolution.DatabaseResourceSource
  24 import org.onap.ccsdk.cds.blueprintsprocessor.functions.resource.resolution.ResourceResolutionConstants.PREFIX_RESOURCE_RESOLUTION_PROCESSOR
  25 import org.onap.ccsdk.cds.blueprintsprocessor.functions.resource.resolution.utils.ResourceAssignmentUtils
  26 import org.onap.ccsdk.cds.controllerblueprints.core.*
  27 import org.onap.ccsdk.cds.controllerblueprints.core.utils.JacksonUtils
  28 import org.onap.ccsdk.cds.controllerblueprints.resource.dict.ResourceAssignment
  29 import org.onap.ccsdk.cds.controllerblueprints.resource.dict.ResourceDictionaryConstants
  30 import org.slf4j.LoggerFactory
  31 import org.springframework.beans.factory.config.ConfigurableBeanFactory
  32 import org.springframework.context.annotation.Scope
  33 import org.springframework.stereotype.Service
  34 import java.util.*
  35
  36 /**
  37  * DatabaseResourceAssignmentProcessor
  38  *
  39  * @author Kapil Singal
  40  */
  41 @Service("${PREFIX_RESOURCE_RESOLUTION_PROCESSOR}source-db")
  42 @Scope(value = ConfigurableBeanFactory.SCOPE_PROTOTYPE)
  43 open class DatabaseResourceAssignmentProcessor(private val bluePrintDBLibPropertySevice: BluePrintDBLibPropertySevice,
  44                                                private val primaryDBLibGenericService: PrimaryDBLibGenericService)
  45     : ResourceAssignmentProcessor() {
  46
  47     private val logger = LoggerFactory.getLogger(DatabaseResourceAssignmentProcessor::class.java)
  48
  49     override fun getName(): String {
  50         return "${PREFIX_RESOURCE_RESOLUTION_PROCESSOR}source-db"
  51     }
  52
  53     override suspend fun processNB(resourceAssignment: ResourceAssignment) {
  54         try {
  55             validate(resourceAssignment)
  56
  57             // Check if It has Input
  58             try {
  59                 val value = raRuntimeService.getInputValue(resourceAssignment.name)
  60                 if (ResourceAssignmentUtils.checkIfInputWasProvided(resourceAssignment, value)) {
  61                     ResourceAssignmentUtils.setInputValueIfProvided(resourceAssignment, raRuntimeService, value)
  62                 } else {
  63                     setValueFromDB(resourceAssignment)
  64                 }
  65             } catch (e: BluePrintProcessorException) {
  66                 setValueFromDB(resourceAssignment)
  67             }
  68
  69             // Check the value has populated for mandatory case
  70             ResourceAssignmentUtils.assertTemplateKeyValueNotNull(resourceAssignment)
  71         } catch (e: Exception) {
  72             ResourceAssignmentUtils.setFailedResourceDataValue(resourceAssignment, e.message)
  73             throw BluePrintProcessorException("Failed in template key ($resourceAssignment) assignments with: ${e.message}", e)
  74         }
  75     }
  76
  77     private fun setValueFromDB(resourceAssignment: ResourceAssignment) {
  78         val dName = resourceAssignment.dictionaryName!!
  79         val dSource = resourceAssignment.dictionarySource!!
  80         val resourceDefinition = resourceDefinition(dName)
  81
  82         /** Check Resource Assignment has the source definitions, If not get from Resource Definition **/
  83         val resourceSource = resourceAssignment.dictionarySourceDefinition
  84                 ?: resourceDefinition?.sources?.get(dSource)
  85                 ?: throw BluePrintProcessorException("couldn't get resource definition $dName source($dSource)")
  86         val resourceSourceProperties = checkNotNull(resourceSource.properties) {
  87             "failed to get source properties for $dName "
  88         }
  89         val sourceProperties = JacksonUtils.getInstanceFromMap(resourceSourceProperties, DatabaseResourceSource::class.java)
  90
  91         val sql = checkNotNull(sourceProperties.query) {
  92             "failed to get request query for $dName under $dSource properties"
  93         }
  94         val inputKeyMapping = checkNotNull(sourceProperties.inputKeyMapping) {
  95             "failed to get input-key-mappings for $dName under $dSource properties"
  96         }
  97
  98         logger.info("$dSource dictionary information : ($sql), ($inputKeyMapping), (${sourceProperties.outputKeyMapping})")
  99         val jdbcTemplate = blueprintDBLibService(sourceProperties)
 100
 101         val rows = jdbcTemplate.query(sql, populateNamedParameter(inputKeyMapping))
 102         if (rows.isNullOrEmpty()) {
 103             logger.warn("Failed to get $dSource result for dictionary name ($dName) the query ($sql)")
 104         } else {
 105             populateResource(resourceAssignment, sourceProperties, rows)
 106         }
 107     }
 108
 109     private fun blueprintDBLibService(sourceProperties: DatabaseResourceSource): BluePrintDBLibGenericService {
 110         return if (isNotEmpty(sourceProperties.endpointSelector)) {
 111             val dbPropertiesJson = raRuntimeService.resolveDSLExpression(sourceProperties.endpointSelector!!)
 112             bluePrintDBLibPropertySevice.JdbcTemplate(dbPropertiesJson)
 113         } else {
 114             primaryDBLibGenericService
 115         }
 116
 117     }
 118
 119     @Throws(BluePrintProcessorException::class)
 120     private fun validate(resourceAssignment: ResourceAssignment) {
 121         checkNotEmpty(resourceAssignment.name) { "resource assignment template key is not defined" }
 122         checkNotEmpty(resourceAssignment.dictionaryName) {
 123             "resource assignment dictionary name is not defined for template key (${resourceAssignment.name})"
 124         }
 125         check(resourceAssignment.dictionarySource in getListOfDBSources())
 126         {
 127             "resource assignment source is not ${ResourceDictionaryConstants.PROCESSOR_DB} but it is ${resourceAssignment.dictionarySource}"
 128         }
 129     }
 130
 131     //placeholder to get the list of DB sources.
 132     //TODO: This will be replaced with a DB
 133     private fun getListOfDBSources(): Array<String> =  arrayOf(ResourceDictionaryConstants.PROCESSOR_DB)
 134
 135     private fun populateNamedParameter(inputKeyMapping: Map<String, String>): Map<String, Any> {
 136         val namedParameters = HashMap<String, Any>()
 137         inputKeyMapping.forEach {
 138             val expressionValue = raRuntimeService.getDictionaryStore(it.value).textValue()
 139             logger.trace("Reference dictionary key (${it.key}) resulted in value ($expressionValue)")
 140             namedParameters[it.key] = expressionValue
 141         }
 142         logger.info("Parameter information : ($namedParameters)")
 143         return namedParameters
 144     }
 145
 146     @Throws(BluePrintProcessorException::class)
 147     private fun populateResource(resourceAssignment: ResourceAssignment, sourceProperties: DatabaseResourceSource, rows: List<Map<String, Any>>) {
 148         val dName = resourceAssignment.dictionaryName
 149         val dSource = resourceAssignment.dictionarySource
 150         val type = nullToEmpty(resourceAssignment.property?.type)
 151
 152         val outputKeyMapping = checkNotNull(sourceProperties.outputKeyMapping) {
 153             "failed to get output-key-mappings for $dName under $dSource properties"
 154         }
 155         logger.info("Response processing type($type)")
 156
 157         val responseNode = checkNotNull(JacksonUtils.getJsonNode(rows)) {
 158             "Failed to get database query result into Json node."
 159         }
 160
 161         val parsedResponseNode = ResourceAssignmentUtils.parseResponseNode(responseNode, resourceAssignment,
 162                 raRuntimeService, outputKeyMapping)
 163         ResourceAssignmentUtils.setResourceDataValue(resourceAssignment, raRuntimeService, parsedResponseNode)
 164     }
 165
 166     override suspend fun recoverNB(runtimeException: RuntimeException, resourceAssignment: ResourceAssignment) {
 167         raRuntimeService.getBluePrintError().addError(runtimeException.message!!)
 168     }
 169 }