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/*
* Copyright © 2018 IBM.
*
* Modifications Copyright © 2017-2019 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 com.fasterxml.jackson.databind.JsonNode
import org.apache.commons.collections.MapUtils
import org.onap.ccsdk.cds.blueprintsprocessor.functions.resource.resolution.ResourceAssignmentRuntimeService
import org.onap.ccsdk.cds.blueprintsprocessor.functions.resource.resolution.utils.ResourceAssignmentUtils
import org.onap.ccsdk.cds.controllerblueprints.core.BlueprintConstants
import org.onap.ccsdk.cds.controllerblueprints.core.BlueprintException
import org.onap.ccsdk.cds.controllerblueprints.core.BlueprintProcessorException
import org.onap.ccsdk.cds.controllerblueprints.core.asJsonNode
import org.onap.ccsdk.cds.controllerblueprints.core.interfaces.BlueprintFunctionNode
import org.onap.ccsdk.cds.controllerblueprints.core.isNullOrMissing
import org.onap.ccsdk.cds.controllerblueprints.core.service.BlueprintVelocityTemplateService
import org.onap.ccsdk.cds.controllerblueprints.resource.dict.ResourceAssignment
import org.onap.ccsdk.cds.controllerblueprints.resource.dict.ResourceDefinition
import org.slf4j.LoggerFactory
import java.util.HashMap
abstract class ResourceAssignmentProcessor : BlueprintFunctionNode<ResourceAssignment, Boolean> {
private val log = LoggerFactory.getLogger(ResourceAssignmentProcessor::class.java)
lateinit var raRuntimeService: ResourceAssignmentRuntimeService
var resourceDictionaries: MutableMap<String, ResourceDefinition> = hashMapOf()
var resourceAssignments: MutableList<ResourceAssignment> = arrayListOf()
var scriptPropertyInstances: MutableMap<String, Any> = hashMapOf()
lateinit var scriptType: String
/**
* This will be called from the scripts to serve instance from runtime to scripts.
*/
open fun <T> scriptPropertyInstanceType(name: String): T {
return scriptPropertyInstances as? T
?: throw BlueprintProcessorException("couldn't get script property instance ($name)")
}
open fun setFromInput(resourceAssignment: ResourceAssignment): Boolean {
try {
val value = raRuntimeService.getInputValue(resourceAssignment.name)
if (!value.isNullOrMissing()) {
log.debug(
"For Resource:(${resourceAssignment.name}) found value:({}) in input-data.",
ResourceAssignmentUtils.getValueToLog(resourceAssignment.property?.metadata, value)
)
ResourceAssignmentUtils.setResourceDataValue(resourceAssignment, raRuntimeService, value)
return true
}
} catch (e: BlueprintProcessorException) {
// NoOp - couldn't find value from input
}
return false
}
open fun setFromInputKeyDependencies(keys: MutableList<String>, resourceAssignment: ResourceAssignment): Boolean {
try {
for (dependencyKey in keys) {
var value = raRuntimeService.getInputValue(dependencyKey)
if (!value.isNullOrMissing()) {
log.debug(
"For Resource:(${resourceAssignment.name}) found value:({}) in input-data under: ($dependencyKey).",
ResourceAssignmentUtils.getValueToLog(resourceAssignment.property?.metadata, value)
)
ResourceAssignmentUtils.setResourceDataValue(resourceAssignment, raRuntimeService, value)
return true
}
}
} catch (e: BlueprintProcessorException) {
// NoOp - couldn't find value from input
}
return false
}
open fun resourceDefinition(name: String): ResourceDefinition? {
return if (resourceDictionaries.containsKey(name)) resourceDictionaries[name] else null
}
open fun resolveInputKeyMappingVariables(inputKeyMapping: Map<String, String>): Map<String, JsonNode> {
val resolvedInputKeyMapping = HashMap<String, JsonNode>()
if (MapUtils.isNotEmpty(inputKeyMapping)) {
for ((key, value) in inputKeyMapping) {
val resultValue = raRuntimeService.getResolutionStore(value)
resolvedInputKeyMapping[key] = resultValue
}
}
return resolvedInputKeyMapping
}
open suspend fun resolveFromInputKeyMapping(valueToResolve: String, keyMapping: MutableMap<String, JsonNode>):
String {
if (valueToResolve.isEmpty() || !valueToResolve.contains("$")) {
return valueToResolve
}
// TODO("Optimize to JSON Node directly without velocity").asJsonNode().toString()
return BlueprintVelocityTemplateService.generateContent(valueToResolve, keyMapping.asJsonNode().toString())
}
final override suspend fun applyNB(resourceAssignment: ResourceAssignment): Boolean {
try {
processNB(resourceAssignment)
} catch (runtimeException: RuntimeException) {
log.error("failed in ${getName()} : ${runtimeException.message}", runtimeException)
recoverNB(runtimeException, resourceAssignment)
return false
}
return true
}
suspend fun executeScript(resourceAssignment: ResourceAssignment) {
return when (scriptType) {
BlueprintConstants.SCRIPT_JYTHON -> {
executeScriptBlocking(resourceAssignment)
}
else -> {
executeScriptNB(resourceAssignment)
}
}
}
private suspend fun executeScriptNB(resourceAssignment: ResourceAssignment) {
try {
processNB(resourceAssignment)
} catch (runtimeException: RuntimeException) {
log.error("failed in ${getName()} : ${runtimeException.message}", runtimeException)
recoverNB(runtimeException, resourceAssignment)
}
}
private fun executeScriptBlocking(resourceAssignment: ResourceAssignment) {
try {
process(resourceAssignment)
} catch (runtimeException: RuntimeException) {
log.error("failed in ResourceAssignmentProcessor : ${runtimeException.message}", runtimeException)
recover(runtimeException, resourceAssignment)
}
}
/**
* If Jython Script, Override Blocking methods(process() and recover())
* If Kotlin or Internal Scripts, Override non blocking methods ( processNB() and recoverNB()), so default
* blocking
* methods will have default implementation,
*
* Always applyNB() method will be invoked, apply() won't be called from parent
*/
final override fun apply(resourceAssignment: ResourceAssignment): Boolean {
throw BlueprintException("Not Implemented, use applyNB method")
}
final override fun prepareRequest(resourceAssignment: ResourceAssignment): ResourceAssignment {
throw BlueprintException("Not Implemented required")
}
final override fun prepareResponse(): Boolean {
throw BlueprintException("Not Implemented required")
}
final override suspend fun prepareRequestNB(resourceAssignment: ResourceAssignment): ResourceAssignment {
throw BlueprintException("Not Implemented required")
}
final override suspend fun prepareResponseNB(): Boolean {
throw BlueprintException("Not Implemented required")
}
override fun process(resourceAssignment: ResourceAssignment) {
throw BlueprintException("Not Implemented, child class will implement this")
}
override fun recover(runtimeException: RuntimeException, resourceAssignment: ResourceAssignment) {
throw BlueprintException("Not Implemented, child class will implement this")
}
fun addError(type: String, name: String, error: String) {
raRuntimeService.getBlueprintError().addError(type, name, error, getName())
}
fun addError(error: String) {
raRuntimeService.getBlueprintError().addError(error, getName())
}
fun isTemplateKeyValueNull(resourceAssignment: ResourceAssignment): Boolean {
val resourceProp = checkNotNull(resourceAssignment.property) {
"Failed to populate mandatory resource resource mapping $resourceAssignment"
}
if (resourceProp.required != null && resourceProp.required!! &&
resourceProp.value.isNullOrMissing()
) {
return true
}
return false
}
}
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