ms/blueprintsprocessor/modules/services/execution-service/src/main/kotlin/org/onap/ccsdk/cds/blueprintsprocessor/services/execution/scripts/BlueprintJythonService.kt

   1 /*
   2  * Copyright © 2019 IBM, Bell Canada.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *     http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 package org.onap.ccsdk.cds.blueprintsprocessor.services.execution.scripts
  17
  18 import com.fasterxml.jackson.databind.JsonNode
  19 import com.fasterxml.jackson.databind.node.ArrayNode
  20 import org.apache.commons.io.FilenameUtils
  21 import org.onap.ccsdk.cds.blueprintsprocessor.services.execution.AbstractComponentFunction
  22 import org.onap.ccsdk.cds.controllerblueprints.core.BluePrintProcessorException
  23 import org.onap.ccsdk.cds.controllerblueprints.core.checkNotEmpty
  24 import org.onap.ccsdk.cds.controllerblueprints.core.data.OperationAssignment
  25 import org.onap.ccsdk.cds.controllerblueprints.core.interfaces.BlueprintFunctionNode
  26 import org.onap.ccsdk.cds.controllerblueprints.core.service.BluePrintContext
  27 import org.onap.ccsdk.cds.controllerblueprints.core.utils.JacksonUtils
  28 import org.slf4j.Logger
  29 import org.slf4j.LoggerFactory
  30 import org.springframework.context.ApplicationContext
  31 import org.springframework.stereotype.Service
  32 import java.io.File
  33
  34 @Service
  35 class BlueprintJythonService(
  36     val pythonExecutorProperty: PythonExecutorProperty,
  37     private val applicationContext: ApplicationContext
  38 ) {
  39
  40     val log: Logger = LoggerFactory.getLogger(BlueprintJythonService::class.java)
  41
  42     inline fun <reified T> jythonInstance(
  43         blueprintContext: BluePrintContext,
  44         pythonClassName: String,
  45         content: String,
  46         dependencyInstanceNames: MutableMap<String, Any>?
  47     ): T {
  48
  49         val blueprintBasePath: String = blueprintContext.rootPath
  50         val pythonPath: MutableList<String> = arrayListOf()
  51         pythonPath.add(blueprintBasePath)
  52         pythonPath.addAll(pythonExecutorProperty.modulePaths)
  53
  54         val blueprintPythonConfigurations = BluePrintPython(pythonExecutorProperty.executionPath, pythonPath, arrayListOf())
  55
  56         val blueprintPythonHost = BlueprintPythonHost(blueprintPythonConfigurations)
  57         val pyObject = blueprintPythonHost.getPythonComponent(content, pythonClassName, dependencyInstanceNames)
  58
  59         log.info("Component Object {}", pyObject)
  60
  61         return pyObject.__tojava__(T::class.java) as T
  62     }
  63
  64     fun jythonComponentInstance(bluePrintContext: BluePrintContext, scriptClassReference: String):
  65             BlueprintFunctionNode<*, *> {
  66
  67         val pythonFileName = bluePrintContext.rootPath
  68             .plus(File.separator)
  69             .plus(scriptClassReference)
  70
  71         val pythonClassName = FilenameUtils.getBaseName(pythonFileName)
  72         log.info("Getting Jython Script Class($pythonClassName)")
  73
  74         val content: String = JacksonUtils.getContent(pythonFileName)
  75
  76         val jythonInstances: MutableMap<String, Any> = hashMapOf()
  77         jythonInstances["log"] = LoggerFactory.getLogger(pythonClassName)
  78
  79         return jythonInstance<BlueprintFunctionNode<*, *>>(
  80             bluePrintContext, pythonClassName,
  81             content, jythonInstances
  82         )
  83     }
  84
  85     fun jythonComponentInstance(abstractComponentFunction: AbstractComponentFunction): AbstractComponentFunction {
  86
  87         val bluePrintRuntimeService = abstractComponentFunction.bluePrintRuntimeService
  88         val bluePrintContext = bluePrintRuntimeService.bluePrintContext()
  89         val nodeTemplateName: String = abstractComponentFunction.nodeTemplateName
  90         val operationInputs: MutableMap<String, JsonNode> = abstractComponentFunction.operationInputs
  91
  92         val operationAssignment: OperationAssignment = bluePrintContext
  93             .nodeTemplateInterfaceOperation(
  94                 abstractComponentFunction.nodeTemplateName,
  95                 abstractComponentFunction.interfaceName, abstractComponentFunction.operationName
  96             )
  97
  98         val blueprintBasePath: String = bluePrintContext.rootPath
  99
 100         val artifactName: String = operationAssignment.implementation?.primary
 101             ?: throw BluePrintProcessorException("missing primary field to get artifact name for node template ($nodeTemplateName)")
 102
 103         val artifactDefinition = bluePrintRuntimeService.resolveNodeTemplateArtifactDefinition(nodeTemplateName, artifactName)
 104
 105         val pythonFileName = artifactDefinition.file
 106             ?: throw BluePrintProcessorException("missing file name for node template ($nodeTemplateName)'s artifactName($artifactName)")
 107
 108         val pythonClassName = FilenameUtils.getBaseName(pythonFileName)
 109         log.info("Getting Jython Script Class($pythonClassName)")
 110
 111         val content: String? = bluePrintRuntimeService.resolveNodeTemplateArtifact(nodeTemplateName, artifactName)
 112
 113         checkNotEmpty(content) { "artifact ($artifactName) content is empty" }
 114
 115         val pythonPath: MutableList<String> = operationAssignment.implementation?.dependencies ?: arrayListOf()
 116         pythonPath.add(blueprintBasePath)
 117         pythonPath.addAll(pythonExecutorProperty.modulePaths)
 118
 119         val jythonInstances: MutableMap<String, Any> = hashMapOf()
 120         jythonInstances["log"] = LoggerFactory.getLogger(nodeTemplateName)
 121
 122         val instanceDependenciesNode: ArrayNode = operationInputs[PythonExecutorConstants.INPUT_INSTANCE_DEPENDENCIES] as? ArrayNode
 123             ?: throw BluePrintProcessorException("Failed to get property(${PythonExecutorConstants.INPUT_INSTANCE_DEPENDENCIES})")
 124
 125         instanceDependenciesNode.forEach { instanceName ->
 126             jythonInstances[instanceName.textValue()] = applicationContext.getBean(instanceName.textValue())
 127         }
 128
 129         val scriptComponentFunction = jythonInstance<AbstractComponentFunction>(
 130             bluePrintContext, pythonClassName,
 131             content!!, jythonInstances
 132         )
 133
 134         return scriptComponentFunction
 135     }
 136 }