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/*
* Copyright © 2019 IBM.
*
* 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.services.execution
import com.fasterxml.jackson.databind.JsonNode
import org.onap.ccsdk.cds.blueprintsprocessor.core.api.data.ExecutionServiceInput
import org.onap.ccsdk.cds.blueprintsprocessor.core.api.data.ExecutionServiceOutput
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.slf4j.LoggerFactory
abstract class AbstractScriptComponentFunction : AbstractComponentFunction() {
private val log = LoggerFactory.getLogger(AbstractScriptComponentFunction::class.java)!!
companion object {
const val DYNAMIC_PROPERTIES = "dynamic-properties"
}
lateinit var scriptType: String
/**
* Store Dynamic Script Dependency Instances, Objects present inside won't be persisted or state maintained.
*/
@Deprecated("Dependencies will be resolved dynamically")
var functionDependencyInstances: MutableMap<String, Any> = hashMapOf()
/**
* This will be called from the scripts to serve instance from runtime to scripts.
*/
@Deprecated("Dependencies will be resolved dynamically")
open fun <T> functionDependencyInstanceAsType(name: String): T {
return functionDependencyInstances[name] as? T
?: throw BluePrintProcessorException("couldn't get script property instance ($name)")
}
fun checkDynamicProperties(key: String): Boolean {
return operationInputs[DYNAMIC_PROPERTIES]?.has(key) ?: false
}
fun getDynamicProperties(key: String): JsonNode {
return operationInputs[DYNAMIC_PROPERTIES]!!.get(key)
}
suspend fun executeScript(executionServiceInput: ExecutionServiceInput) {
return when (scriptType) {
BluePrintConstants.SCRIPT_JYTHON -> {
executeScriptBlocking(executionServiceInput)
}
else -> {
executeScriptNB(executionServiceInput)
}
}
}
private suspend fun executeScriptNB(executionServiceInput: ExecutionServiceInput) {
try {
processNB(executionServiceInput)
} catch (runtimeException: RuntimeException) {
log.error("failed in ${getName()} : ${runtimeException.message}", runtimeException)
recoverNB(runtimeException, executionServiceInput)
}
}
private fun executeScriptBlocking(executionServiceInput: ExecutionServiceInput) {
try {
process(executionServiceInput)
} catch (runtimeException: RuntimeException) {
log.error("failed in ${getName()} : ${runtimeException.message}", runtimeException)
recover(runtimeException, executionServiceInput)
}
}
/**
* 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(executionServiceInput: ExecutionServiceInput): ExecutionServiceOutput {
throw BluePrintException("Not Implemented, use applyNB method")
}
final override fun prepareRequest(executionRequest: ExecutionServiceInput): ExecutionServiceInput {
throw BluePrintException("Not Implemented required")
}
final override fun prepareResponse(): ExecutionServiceOutput {
throw BluePrintException("Not Implemented required")
}
final override suspend fun applyNB(executionServiceInput: ExecutionServiceInput): ExecutionServiceOutput {
throw BluePrintException("Not Implemented required")
}
final override suspend fun prepareRequestNB(executionRequest: ExecutionServiceInput): ExecutionServiceInput {
throw BluePrintException("Not Implemented required")
}
final override suspend fun prepareResponseNB(): ExecutionServiceOutput {
throw BluePrintException("Not Implemented required")
}
override fun process(executionRequest: ExecutionServiceInput) {
throw BluePrintException("Not Implemented, child class will implement this")
}
override fun recover(runtimeException: RuntimeException, executionRequest: ExecutionServiceInput) {
throw BluePrintException("Not Implemented, child class will implement this")
}
}
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