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/*
* Copyright © 2018 IBM.
* Modifications Copyright © 2017-2018 AT&T Intellectual Property.
*
* 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.apps.blueprintsprocessor.functions.resource.resolution.processor
import com.fasterxml.jackson.databind.node.ArrayNode
import com.fasterxml.jackson.databind.node.JsonNodeFactory
import com.fasterxml.jackson.databind.node.MissingNode
import org.onap.ccsdk.apps.blueprintsprocessor.functions.resource.resolution.ResourceResolutionConstants.PREFIX_RESOURCE_RESOLUTION_PROCESSOR
import org.onap.ccsdk.apps.blueprintsprocessor.functions.resource.resolution.RestResourceSource
import org.onap.ccsdk.apps.blueprintsprocessor.functions.resource.resolution.utils.ResourceAssignmentUtils
import org.onap.ccsdk.apps.blueprintsprocessor.rest.service.BluePrintRestLibPropertyService
import org.onap.ccsdk.apps.blueprintsprocessor.rest.service.BlueprintWebClientService
import org.onap.ccsdk.apps.controllerblueprints.core.BluePrintProcessorException
import org.onap.ccsdk.apps.controllerblueprints.core.BluePrintTypes
import org.onap.ccsdk.apps.controllerblueprints.core.checkEqualsOrThrow
import org.onap.ccsdk.apps.controllerblueprints.core.checkNotEmpty
import org.onap.ccsdk.apps.controllerblueprints.core.checkNotEmptyOrThrow
import org.onap.ccsdk.apps.controllerblueprints.core.nullToEmpty
import org.onap.ccsdk.apps.controllerblueprints.core.returnNotEmptyOrThrow
import org.onap.ccsdk.apps.controllerblueprints.core.utils.JacksonUtils
import org.onap.ccsdk.apps.controllerblueprints.resource.dict.ResourceAssignment
import org.onap.ccsdk.apps.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
/**
* 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 fun process(resourceAssignment: ResourceAssignment) {
try {
validate(resourceAssignment)
// Check if It has Input
val value = getFromInput(resourceAssignment)
if (value == null || value is MissingNode) {
val dName = resourceAssignment.dictionaryName
val dSource = resourceAssignment.dictionarySource
val resourceDefinition = resourceDictionaries[dName]
?: throw BluePrintProcessorException("couldn't get resource dictionary definition for $dName")
val resourceSource = resourceDefinition.sources[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 $dSource properties" }
val resolvedInputKeyMapping = resolveInputKeyMappingVariables(inputKeyMapping)
// Resolving content Variables
val payload = resolveFromInputKeyMapping(nullToEmpty(sourceProperties.payload), resolvedInputKeyMapping)
val urlPath =
resolveFromInputKeyMapping(checkNotNull(sourceProperties.urlPath), resolvedInputKeyMapping)
val verb = resolveFromInputKeyMapping(nullToEmpty(sourceProperties.verb), resolvedInputKeyMapping)
logger.info("$dSource dictionary information : ($urlPath), ($inputKeyMapping), (${sourceProperties.outputKeyMapping})")
// Get the Rest Client Service
val restClientService = blueprintWebClientService(resourceAssignment, sourceProperties)
val response = restClientService.exchangeResource(verb, urlPath, payload)
if (response.isBlank()) {
logger.warn("Failed to get $dSource result for dictionary name ($dName) using urlPath ($urlPath)")
} else {
populateResource(resourceAssignment, sourceProperties, response, path)
}
}
// Check the value has populated for mandatory case
ResourceAssignmentUtils.assertTemplateKeyValueNotNull(resourceAssignment)
} catch (e: Exception) {
ResourceAssignmentUtils.setFailedResourceDataValue(resourceAssignment, e.message)
throw BluePrintProcessorException("Failed in template key ($resourceAssignment) assignments with: ${e.message}",
e)
}
}
private fun blueprintWebClientService(resourceAssignment: ResourceAssignment,
restResourceSource: RestResourceSource): BlueprintWebClientService {
return if (checkNotEmpty(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)
lateinit var entrySchemaType: String
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)" }
logger.info("populating value for output mapping ($outputKeyMapping), from json ($responseNode)")
when (type) {
in BluePrintTypes.validPrimitiveTypes() -> {
logger.info("For template key (${resourceAssignment.name}) setting value as ($responseNode)")
ResourceAssignmentUtils.setResourceDataValue(resourceAssignment, raRuntimeService, responseNode)
}
in BluePrintTypes.validCollectionTypes() -> {
// Array Types
entrySchemaType =
returnNotEmptyOrThrow(resourceAssignment.property?.entrySchema?.type) { "Entry schema is not defined for dictionary ($dName) info" }
val arrayNode = responseNode as ArrayNode
if (entrySchemaType !in BluePrintTypes.validPrimitiveTypes()) {
val responseArrayNode = responseNode.toList()
for (responseSingleJsonNode in responseArrayNode) {
val arrayChildNode = JsonNodeFactory.instance.objectNode()
outputKeyMapping.map {
val responseKeyValue = responseSingleJsonNode.get(it.key)
val propertyTypeForDataType =
ResourceAssignmentUtils.getPropertyType(raRuntimeService, entrySchemaType, it.key)
logger.info("For List Type Resource: key (${it.key}), value ($responseKeyValue), type ({$propertyTypeForDataType})")
JacksonUtils.populateJsonNodeValues(it.value,
responseKeyValue,
propertyTypeForDataType,
arrayChildNode)
}
arrayNode.add(arrayChildNode)
}
}
logger.info("For template key (${resourceAssignment.name}) setting value as ($arrayNode)")
// Set the List of Complex Values
ResourceAssignmentUtils.setResourceDataValue(resourceAssignment, raRuntimeService, arrayNode)
}
else -> {
// Complex Types
entrySchemaType =
returnNotEmptyOrThrow(resourceAssignment.property?.type) { "Entry schema is not defined for dictionary ($dName) info" }
val objectNode = JsonNodeFactory.instance.objectNode()
outputKeyMapping.map {
val responseKeyValue = responseNode.get(it.key)
val propertyTypeForDataType =
ResourceAssignmentUtils.getPropertyType(raRuntimeService, entrySchemaType, it.key)
logger.info("For List Type Resource: key (${it.key}), value ($responseKeyValue), type ({$propertyTypeForDataType})")
JacksonUtils.populateJsonNodeValues(it.value, responseKeyValue, propertyTypeForDataType, objectNode)
}
logger.info("For template key (${resourceAssignment.name}) setting value as ($objectNode)")
// Set the List of Complex Values
ResourceAssignmentUtils.setResourceDataValue(resourceAssignment, raRuntimeService, objectNode)
}
}
}
@Throws(BluePrintProcessorException::class)
private fun validate(resourceAssignment: ResourceAssignment) {
checkNotEmptyOrThrow(resourceAssignment.name, "resource assignment template key is not defined")
checkNotEmptyOrThrow(resourceAssignment.dictionaryName,
"resource assignment dictionary name is not defined for template key (${resourceAssignment.name})")
checkEqualsOrThrow(ResourceDictionaryConstants.SOURCE_PRIMARY_CONFIG_DATA,
resourceAssignment.dictionarySource) {
"resource assignment source is not ${ResourceDictionaryConstants.SOURCE_PRIMARY_CONFIG_DATA} but it is ${resourceAssignment.dictionarySource}"
}
checkNotEmptyOrThrow(resourceAssignment.dictionaryName,
"resource assignment dictionary name is not defined for template key (${resourceAssignment.name})")
}
override fun recover(runtimeException: RuntimeException, resourceAssignment: ResourceAssignment) {
}
}
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