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/*
* Copyright © 2018 - 2020 IBM.
* Modifications Copyright © 2017-2020 AT&T, 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.functions.resource.resolution.ResourceResolutionConstants.PREFIX_RESOURCE_RESOLUTION_PROCESSOR
import org.onap.ccsdk.cds.blueprintsprocessor.functions.resource.resolution.RestResourceSource
import org.onap.ccsdk.cds.blueprintsprocessor.functions.resource.resolution.utils.ResourceAssignmentUtils
import org.onap.ccsdk.cds.blueprintsprocessor.rest.service.BluePrintRestLibPropertyService
import org.onap.ccsdk.cds.blueprintsprocessor.rest.service.BlueprintWebClientService
import org.onap.ccsdk.cds.blueprintsprocessor.services.execution.ExecutionServiceDomains
import org.onap.ccsdk.cds.controllerblueprints.core.BluePrintConstants
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.slf4j.LoggerFactory
import org.springframework.beans.factory.config.ConfigurableBeanFactory
import org.springframework.context.annotation.Scope
import org.springframework.stereotype.Service
/**
* RestResourceResolutionProcessor
*
* @author Kapil Singal
*/
@Service("${PREFIX_RESOURCE_RESOLUTION_PROCESSOR}source-rest")
@Scope(value = ConfigurableBeanFactory.SCOPE_PROTOTYPE)
open class RestResourceResolutionProcessor(private val blueprintRestLibPropertyService: BluePrintRestLibPropertyService) :
ResourceAssignmentProcessor() {
private val logger = LoggerFactory.getLogger(RestResourceResolutionProcessor::class.java)
override fun getName(): String {
return "${PREFIX_RESOURCE_RESOLUTION_PROCESSOR}source-rest"
}
override suspend fun processNB(resourceAssignment: ResourceAssignment) {
try {
validate(resourceAssignment)
// Check if It has Input
if (!setFromInput(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 Definitions **/
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, RestResourceSource::class.java)
val path = nullToEmpty(sourceProperties.path)
val inputKeyMapping =
checkNotNull(sourceProperties.inputKeyMapping) { "failed to get input-key-mappings for $dName under $dSource properties" }
val resolvedInputKeyMapping = resolveInputKeyMappingVariables(inputKeyMapping).toMutableMap()
resolvedInputKeyMapping.map { KeyIdentifier(it.key, it.value) }.let {
resourceAssignment.keyIdentifiers.addAll(it)
}
// Resolving content Variables
val payload = resolveFromInputKeyMapping(nullToEmpty(sourceProperties.payload), resolvedInputKeyMapping)
resourceSourceProperties["resolved-payload"] = JacksonUtils.jsonNode(payload)
val urlPath =
resolveFromInputKeyMapping(checkNotNull(sourceProperties.urlPath), resolvedInputKeyMapping)
val verb = resolveFromInputKeyMapping(nullToEmpty(sourceProperties.verb), resolvedInputKeyMapping)
logger.info(
"RestResource ($dSource) dictionary information: " +
"URL:($urlPath), input-key-mapping:($inputKeyMapping), output-key-mapping:(${sourceProperties.outputKeyMapping})"
)
val requestHeaders = sourceProperties.headers
logger.info("$dSource dictionary information : ($urlPath), ($inputKeyMapping), (${sourceProperties.outputKeyMapping})")
// Get the Rest Client Service
val restClientService = blueprintWebClientService(resourceAssignment, sourceProperties)
val response = restClientService.exchangeResource(verb, urlPath, payload, requestHeaders.toMap())
val responseStatusCode = response.status
val responseBody = response.body
val outputKeyMapping = sourceProperties.outputKeyMapping
if (responseStatusCode in 200..299 && outputKeyMapping.isNullOrEmpty()) {
resourceAssignment.status = BluePrintConstants.STATUS_SUCCESS
logger.info("AS>> outputKeyMapping==null, will not populateResource")
} else if (responseStatusCode in 200..299 && !responseBody.isBlank()) {
populateResource(resourceAssignment, sourceProperties, responseBody, path)
} else {
val errMsg =
"Failed to get $dSource result for dictionary name ($dName) using urlPath ($urlPath) response_code: ($responseStatusCode)"
logger.warn(errMsg)
throw BluePrintProcessorException(errMsg)
}
}
// Check the value has populated for mandatory case
ResourceAssignmentUtils.assertTemplateKeyValueNotNull(resourceAssignment)
} catch (e: BluePrintProcessorException) {
val errorMsg = "Failed to process REST resource resolution in template key ($resourceAssignment) assignments."
ResourceAssignmentUtils.setFailedResourceDataValue(resourceAssignment, errorMsg)
throw e.updateErrorMessage(
ExecutionServiceDomains.RESOURCE_RESOLUTION, errorMsg,
"Wrong resource definition or resolution failed."
)
} catch (e: Exception) {
ResourceAssignmentUtils.setFailedResourceDataValue(resourceAssignment, e.message)
throw BluePrintProcessorException("Failed in template key ($resourceAssignment) assignments with: ${e.message}", e)
}
}
fun blueprintWebClientService(
resourceAssignment: ResourceAssignment,
restResourceSource: RestResourceSource
): BlueprintWebClientService {
return if (isNotEmpty(restResourceSource.endpointSelector)) {
val restPropertiesJson = raRuntimeService.resolveDSLExpression(restResourceSource.endpointSelector!!)
blueprintRestLibPropertyService.blueprintWebClientService(restPropertiesJson)
} else {
blueprintRestLibPropertyService.blueprintWebClientService(resourceAssignment.dictionarySource!!)
}
}
@Throws(BluePrintProcessorException::class)
private fun populateResource(
resourceAssignment: ResourceAssignment,
sourceProperties: RestResourceSource,
restResponse: String,
path: String
) {
val dName = resourceAssignment.dictionaryName
val dSource = resourceAssignment.dictionarySource
val type = nullToEmpty(resourceAssignment.property?.type)
val metadata = resourceAssignment.property!!.metadata
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.jsonNode(restResponse).at(path)) {
"Failed to find path ($path) in response ($restResponse)"
}
val valueToPrint = ResourceAssignmentUtils.getValueToLog(metadata, responseNode)
logger.info("populating value for output mapping ($outputKeyMapping), from json ($valueToPrint)")
val parsedResponseNode = ResourceAssignmentUtils.parseResponseNode(
responseNode, resourceAssignment,
raRuntimeService, outputKeyMapping
)
// Set the List of Complex Values
ResourceAssignmentUtils.setResourceDataValue(resourceAssignment, raRuntimeService, parsedResponseNode)
}
@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 (${resourceAssignment.name})"
}
checkNotEmpty(resourceAssignment.dictionarySource) {
"resource assignment dictionary source is not defined for template key (${resourceAssignment.name})"
}
}
override suspend fun recoverNB(runtimeException: RuntimeException, resourceAssignment: ResourceAssignment) {
addError(runtimeException.message!!)
}
}
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