gerrit.onap Code Review - ccsdk/cds.git/blob

   1 /*
   2  * Copyright © 2017-2018 AT&T Intellectual Property.
   3  *
   4  * Modifications Copyright © 2019 IBM, Bell Canada.
   5  *
   6  * Licensed under the Apache License, Version 2.0 (the "License");
   7  * you may not use this file except in compliance with the License.
   8  * You may obtain a copy of the License at
   9  *
  10  *     http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing, software
  13  * distributed under the License is distributed on an "AS IS" BASIS,
  14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15  * See the License for the specific language governing permissions and
  16  * limitations under the License.
  17  */
  18
  19 package org.onap.ccsdk.apps.blueprintsprocessor.functions.python.executor
  20
  21 import com.fasterxml.jackson.databind.node.ArrayNode
  22 import org.apache.commons.io.FilenameUtils
  23 import org.onap.ccsdk.apps.blueprintsprocessor.core.api.data.ExecutionServiceInput
  24 import org.onap.ccsdk.apps.blueprintsprocessor.services.execution.AbstractComponentFunction
  25 import org.onap.ccsdk.apps.controllerblueprints.core.BluePrintProcessorException
  26 import org.onap.ccsdk.apps.controllerblueprints.core.checkNotEmptyOrThrow
  27 import org.onap.ccsdk.apps.controllerblueprints.core.data.OperationAssignment
  28 import org.slf4j.LoggerFactory
  29 import org.springframework.beans.factory.config.ConfigurableBeanFactory
  30 import org.springframework.context.ApplicationContext
  31 import org.springframework.context.annotation.Scope
  32 import org.springframework.stereotype.Component
  33
  34 @Component("component-jython-executor")
  35 @Scope(value = ConfigurableBeanFactory.SCOPE_PROTOTYPE)
  36 open class ComponentJythonExecutor(private var applicationContext: ApplicationContext,
  37                                    private val blueprintPythonService: BlueprintPythonService) : AbstractComponentFunction() {
  38
  39     private val log = LoggerFactory.getLogger(ComponentJythonExecutor::class.java)
  40
  41     private var componentFunction: AbstractComponentFunction? = null
  42
  43     fun populateJythonComponentInstance(executionServiceInput: ExecutionServiceInput) {
  44         val bluePrintContext = bluePrintRuntimeService.bluePrintContext()
  45
  46         val operationAssignment: OperationAssignment = bluePrintContext
  47                 .nodeTemplateInterfaceOperation(nodeTemplateName, interfaceName, operationName)
  48
  49         val artifactName: String = operationAssignment.implementation?.primary
  50                 ?: throw BluePrintProcessorException("missing primary field to get artifact name for node template ($nodeTemplateName)")
  51
  52         val artifactDefinition = bluePrintRuntimeService.resolveNodeTemplateArtifactDefinition(nodeTemplateName, artifactName)
  53
  54         val pythonFileName = artifactDefinition.file
  55                 ?: throw BluePrintProcessorException("missing file name for node template ($nodeTemplateName)'s artifactName($artifactName)")
  56
  57         val pythonClassName = FilenameUtils.getBaseName(pythonFileName)
  58
  59         val content: String? = bluePrintRuntimeService.resolveNodeTemplateArtifact(nodeTemplateName, artifactName)
  60
  61         checkNotEmptyOrThrow(content, "artifact ($artifactName) content is empty")
  62
  63         val instanceDependenciesNode: ArrayNode = operationInputs[PythonExecutorConstants.INPUT_INSTANCE_DEPENDENCIES] as? ArrayNode
  64                 ?: throw BluePrintProcessorException("Failed to get property(${PythonExecutorConstants.INPUT_INSTANCE_DEPENDENCIES})")
  65
  66         val jythonContextInstance: MutableMap<String, Any> = hashMapOf()
  67         jythonContextInstance["log"] = LoggerFactory.getLogger(pythonClassName)
  68         jythonContextInstance["bluePrintRuntimeService"] = bluePrintRuntimeService
  69         instanceDependenciesNode?.forEach { instanceName ->
  70             val instance = instanceName.textValue()
  71             val value = applicationContext.getBean(instance)
  72                     ?: throw BluePrintProcessorException("couldn't get the dependency instance($instance)")
  73             jythonContextInstance[instance] = value
  74         }
  75
  76         componentFunction = blueprintPythonService.jythonInstance(bluePrintContext, pythonClassName,
  77                 content!!, jythonContextInstance)
  78     }
  79
  80
  81     override fun process(executionServiceInput: ExecutionServiceInput) {
  82
  83         log.info("Processing : $operationInputs")
  84         checkNotNull(bluePrintRuntimeService) { "failed to get bluePrintRuntimeService" }
  85
  86         // Populate Component Instance
  87         populateJythonComponentInstance(executionServiceInput)
  88
  89         // Invoke Jython Component Script
  90         componentFunction!!.process(executionServiceInput)
  91
  92     }
  93
  94     override fun recover(runtimeException: RuntimeException, executionRequest: ExecutionServiceInput) {
  95         componentFunction!!.recover(runtimeException, executionRequest)
  96     }
  97
  98 }