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.checkNotEmptyOrThrow
  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(val pythonExecutorProperty: PythonExecutorProperty,
  36                              private val applicationContext: ApplicationContext) {
  37
  38     val log: Logger = LoggerFactory.getLogger(BlueprintJythonService::class.java)
  39
  40     inline fun <reified T> jythonInstance(blueprintContext: BluePrintContext, pythonClassName: String, content: String,
  41                                           dependencyInstanceNames: MutableMap<String, Any>?): T {
  42
  43         val blueprintBasePath: String = blueprintContext.rootPath
  44         val pythonPath: MutableList<String> = arrayListOf()
  45         pythonPath.add(blueprintBasePath)
  46         pythonPath.addAll(pythonExecutorProperty.modulePaths)
  47
  48         val blueprintPythonConfigurations = BluePrintPython(pythonExecutorProperty.executionPath, pythonPath, arrayListOf())
  49
  50         val blueprintPythonHost = BlueprintPythonHost(blueprintPythonConfigurations)
  51         val pyObject = blueprintPythonHost.getPythonComponent(content, pythonClassName, dependencyInstanceNames)
  52
  53         log.info("Component Object {}", pyObject)
  54
  55         return pyObject.__tojava__(T::class.java) as T
  56     }
  57
  58     fun jythonComponentInstance(bluePrintContext: BluePrintContext, scriptClassReference: String):
  59             BlueprintFunctionNode<*, *> {
  60         val blueprintBasePath: String = bluePrintContext.rootPath
  61
  62         val pythonFileName = bluePrintContext.rootPath
  63                 .plus(File.separator)
  64                 .plus(scriptClassReference)
  65
  66         val pythonClassName = FilenameUtils.getBaseName(pythonFileName)
  67         log.info("Getting Jython Script Class($pythonClassName)")
  68
  69         val content: String = JacksonUtils.getContent(pythonFileName)
  70
  71         val pythonPath: MutableList<String> = arrayListOf()
  72         pythonPath.add(blueprintBasePath)
  73         pythonPath.addAll(pythonExecutorProperty.modulePaths)
  74
  75         val jythonInstances: MutableMap<String, Any> = hashMapOf()
  76         jythonInstances["log"] = LoggerFactory.getLogger(pythonClassName)
  77
  78         return jythonInstance<BlueprintFunctionNode<*, *>>(bluePrintContext, pythonClassName,
  79                 content, jythonInstances)
  80     }
  81
  82     fun jythonComponentInstance(abstractComponentFunction: AbstractComponentFunction): AbstractComponentFunction {
  83
  84         val bluePrintRuntimeService = abstractComponentFunction.bluePrintRuntimeService
  85         val bluePrintContext = bluePrintRuntimeService.bluePrintContext()
  86         val nodeTemplateName: String = abstractComponentFunction.nodeTemplateName
  87         val operationInputs: MutableMap<String, JsonNode> = abstractComponentFunction.operationInputs
  88
  89         val operationAssignment: OperationAssignment = bluePrintContext
  90                 .nodeTemplateInterfaceOperation(abstractComponentFunction.nodeTemplateName,
  91                         abstractComponentFunction.interfaceName, abstractComponentFunction.operationName)
  92
  93         val blueprintBasePath: String = bluePrintContext.rootPath
  94
  95         val artifactName: String = operationAssignment.implementation?.primary
  96                 ?: throw BluePrintProcessorException("missing primary field to get artifact name for node template ($nodeTemplateName)")
  97
  98         val artifactDefinition = bluePrintRuntimeService.resolveNodeTemplateArtifactDefinition(nodeTemplateName, artifactName)
  99
 100         val pythonFileName = artifactDefinition.file
 101                 ?: throw BluePrintProcessorException("missing file name for node template ($nodeTemplateName)'s artifactName($artifactName)")
 102
 103         val pythonClassName = FilenameUtils.getBaseName(pythonFileName)
 104         log.info("Getting Jython Script Class($pythonClassName)")
 105
 106         val content: String? = bluePrintRuntimeService.resolveNodeTemplateArtifact(nodeTemplateName, artifactName)
 107
 108         checkNotEmptyOrThrow(content, "artifact ($artifactName) content is empty")
 109
 110         val pythonPath: MutableList<String> = operationAssignment.implementation?.dependencies ?: arrayListOf()
 111         pythonPath.add(blueprintBasePath)
 112         pythonPath.addAll(pythonExecutorProperty.modulePaths)
 113
 114         val jythonInstances: MutableMap<String, Any> = hashMapOf()
 115         jythonInstances["log"] = LoggerFactory.getLogger(nodeTemplateName)
 116
 117         val instanceDependenciesNode: ArrayNode = operationInputs[PythonExecutorConstants.INPUT_INSTANCE_DEPENDENCIES] as? ArrayNode
 118                 ?: throw BluePrintProcessorException("Failed to get property(${PythonExecutorConstants.INPUT_INSTANCE_DEPENDENCIES})")
 119
 120         instanceDependenciesNode.forEach { instanceName ->
 121             jythonInstances[instanceName.textValue()] = applicationContext.getBean(instanceName.textValue())
 122         }
 123
 124         val scriptComponentFunction = jythonInstance<AbstractComponentFunction>(bluePrintContext, pythonClassName,
 125                 content!!, jythonInstances)
 126
 127         return scriptComponentFunction
 128
 129     }
 130
 131 }