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/*
* Copyright © 2018 IBM.
* Modifications Copyright © 2017-2018 AT&T Intellectual Property, Bell Canada.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.onap.ccsdk.cds.blueprintsprocessor.functions.resource.resolution.processor
import org.onap.ccsdk.cds.blueprintsprocessor.db.BlueprintDBLibGenericService
import org.onap.ccsdk.cds.blueprintsprocessor.db.PrimaryDBLibGenericService
import org.onap.ccsdk.cds.blueprintsprocessor.db.primary.BlueprintDBLibPropertyService
import org.onap.ccsdk.cds.blueprintsprocessor.functions.resource.resolution.DatabaseResourceSource
import org.onap.ccsdk.cds.blueprintsprocessor.functions.resource.resolution.ResourceResolutionConstants.PREFIX_RESOURCE_RESOLUTION_PROCESSOR
import org.onap.ccsdk.cds.blueprintsprocessor.functions.resource.resolution.utils.ResourceAssignmentUtils
import org.onap.ccsdk.cds.blueprintsprocessor.services.execution.ExecutionServiceDomains
import org.onap.ccsdk.cds.controllerblueprints.core.BlueprintProcessorException
import org.onap.ccsdk.cds.controllerblueprints.core.checkNotEmpty
import org.onap.ccsdk.cds.controllerblueprints.core.isNotEmpty
import org.onap.ccsdk.cds.controllerblueprints.core.nullToEmpty
import org.onap.ccsdk.cds.controllerblueprints.core.updateErrorMessage
import org.onap.ccsdk.cds.controllerblueprints.core.utils.JacksonUtils
import org.onap.ccsdk.cds.controllerblueprints.resource.dict.KeyIdentifier
import org.onap.ccsdk.cds.controllerblueprints.resource.dict.ResourceAssignment
import org.onap.ccsdk.cds.controllerblueprints.resource.dict.ResourceDictionaryConstants
import org.slf4j.LoggerFactory
import org.springframework.beans.factory.config.ConfigurableBeanFactory
import org.springframework.context.annotation.Scope
import org.springframework.stereotype.Service
import java.util.HashMap
/**
* DatabaseResourceAssignmentProcessor
*
* @author Kapil Singal
*/
@Service("${PREFIX_RESOURCE_RESOLUTION_PROCESSOR}source-db")
@Scope(value = ConfigurableBeanFactory.SCOPE_PROTOTYPE)
open class DatabaseResourceAssignmentProcessor(
private val bluePrintDBLibPropertyService: BlueprintDBLibPropertyService,
private val primaryDBLibGenericService: PrimaryDBLibGenericService
) : ResourceAssignmentProcessor() {
private val logger = LoggerFactory.getLogger(DatabaseResourceAssignmentProcessor::class.java)
override fun getName(): String {
return "${PREFIX_RESOURCE_RESOLUTION_PROCESSOR}source-db"
}
override suspend fun processNB(resourceAssignment: ResourceAssignment) {
try {
validate(resourceAssignment)
// Check if It has Input
if (!setFromInput(resourceAssignment)) {
setValueFromDB(resourceAssignment)
}
// Check the value has populated for mandatory case
ResourceAssignmentUtils.assertTemplateKeyValueNotNull(resourceAssignment)
} catch (e: BlueprintProcessorException) {
val errorMsg = "Failed to process Database resource resolution in template key ($resourceAssignment) assignments."
throw e.updateErrorMessage(
ExecutionServiceDomains.RESOURCE_RESOLUTION, errorMsg,
"Wrong resource definition or DB resolution failed."
)
} catch (e: Exception) {
ResourceAssignmentUtils.setFailedResourceDataValue(resourceAssignment, e.message)
throw BlueprintProcessorException("Failed in template key ($resourceAssignment) assignments with: ${e.message}", e)
}
}
private fun setValueFromDB(resourceAssignment: ResourceAssignment) {
val dName = resourceAssignment.dictionaryName!!
val dSource = resourceAssignment.dictionarySource!!
val resourceDefinition = resourceDefinition(dName)
/** Check Resource Assignment has the source definitions, If not get from Resource Definition **/
val resourceSource = resourceAssignment.dictionarySourceDefinition
?: resourceDefinition?.sources?.get(dSource)
?: throw BlueprintProcessorException("couldn't get resource definition $dName source($dSource)")
val resourceSourceProperties = checkNotNull(resourceSource.properties) {
"failed to get source properties for $dName "
}
val sourceProperties =
JacksonUtils.getInstanceFromMap(resourceSourceProperties, DatabaseResourceSource::class.java)
val sql = checkNotNull(sourceProperties.query) {
"failed to get request query for $dName under $dSource properties"
}
val inputKeyMapping = checkNotNull(sourceProperties.inputKeyMapping) {
"failed to get input-key-mappings for $dName under $dSource properties"
}
sourceProperties.inputKeyMapping
?.mapValues { raRuntimeService.getResolutionStore(it.value) }
?.map { KeyIdentifier(it.key, it.value) }
?.let { resourceAssignment.keyIdentifiers.addAll(it) }
logger.info(
"DatabaseResource ($dSource) dictionary information: " +
"Query:($sql), input-key-mapping:($inputKeyMapping), output-key-mapping:(${sourceProperties.outputKeyMapping})"
)
val jdbcTemplate = blueprintDBLibService(sourceProperties, dSource)
val rows = jdbcTemplate.query(sql, populateNamedParameter(inputKeyMapping))
if (rows.isNullOrEmpty()) {
logger.warn("Failed to get $dSource result for dictionary name ($dName) the query ($sql)")
} else {
populateResource(resourceAssignment, sourceProperties, rows)
}
}
private fun blueprintDBLibService(sourceProperties: DatabaseResourceSource, selector: String): BlueprintDBLibGenericService {
return if (isNotEmpty(sourceProperties.endpointSelector)) {
val dbPropertiesJson = raRuntimeService.resolveDSLExpression(sourceProperties.endpointSelector!!)
bluePrintDBLibPropertyService.JdbcTemplate(dbPropertiesJson)
} else {
bluePrintDBLibPropertyService.JdbcTemplate(selector)
}
}
@Throws(BlueprintProcessorException::class)
private fun validate(resourceAssignment: ResourceAssignment) {
checkNotEmpty(resourceAssignment.name) { "resource assignment template key is not defined" }
checkNotEmpty(resourceAssignment.dictionaryName) {
"resource assignment dictionary name is not defined for template key (${resourceAssignment.name})"
}
check(resourceAssignment.dictionarySource in getListOfDBSources()) {
"resource assignment source is not ${ResourceDictionaryConstants.PROCESSOR_DB} but it is ${resourceAssignment.dictionarySource}"
}
}
// placeholder to get the list of DB sources.
// TODO: This will be replaced with a DB
private fun getListOfDBSources(): Array<String> = arrayOf(ResourceDictionaryConstants.PROCESSOR_DB)
private fun populateNamedParameter(inputKeyMapping: Map<String, String>): Map<String, Any> {
val namedParameters = HashMap<String, Any>()
inputKeyMapping.forEach {
val expressionValue = raRuntimeService.getResolutionStore(it.value).textValue()
logger.trace("Reference dictionary key (${it.key}) resulted in value ($expressionValue)")
namedParameters[it.key] = expressionValue
}
if (namedParameters.isNotEmpty()) {
logger.info("Parameter information : ($namedParameters)")
}
return namedParameters
}
@Throws(BlueprintProcessorException::class)
private fun populateResource(
resourceAssignment: ResourceAssignment,
sourceProperties: DatabaseResourceSource,
rows: List<Map<String, Any>>
) {
val dName = resourceAssignment.dictionaryName
val dSource = resourceAssignment.dictionarySource
val type = nullToEmpty(resourceAssignment.property?.type)
val outputKeyMapping = checkNotNull(sourceProperties.outputKeyMapping) {
"failed to get output-key-mappings for $dName under $dSource properties"
}
logger.info("Response processing type ($type)")
val responseNode = checkNotNull(JacksonUtils.getJsonNode(rows)) {
"Failed to get database query result into Json node."
}
val parsedResponseNode = ResourceAssignmentUtils.parseResponseNode(
responseNode, resourceAssignment,
raRuntimeService, outputKeyMapping
)
ResourceAssignmentUtils.setResourceDataValue(resourceAssignment, raRuntimeService, parsedResponseNode)
}
override suspend fun recoverNB(runtimeException: RuntimeException, resourceAssignment: ResourceAssignment) {
addError(runtimeException.message!!)
}
}
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