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 blueprintJythonService: BlueprintJythonService) : AbstractComponentFunction() {
  38
  39     private val log = LoggerFactory.getLogger(ComponentJythonExecutor::class.java)
  40
  41     private var componentFunction: AbstractComponentFunction? = null
  42
  43     override fun prepareRequest(executionRequest: ExecutionServiceInput): ExecutionServiceInput {
  44         val request = super.prepareRequest(executionRequest)
  45         // Populate Component Instance
  46         populateJythonComponentInstance()
  47         return request
  48     }
  49
  50     override fun process(executionRequest: ExecutionServiceInput) {
  51         log.info("Processing : $operationInputs")
  52         // Invoke Jython Component Script
  53         componentFunction!!.process(executionServiceInput)
  54
  55     }
  56
  57     override fun recover(runtimeException: RuntimeException, executionRequest: ExecutionServiceInput) {
  58         componentFunction!!.recover(runtimeException, executionRequest)
  59     }
  60
  61     private fun populateJythonComponentInstance() {
  62         val bluePrintContext = bluePrintRuntimeService.bluePrintContext()
  63
  64         val operationAssignment: OperationAssignment = bluePrintContext
  65                 .nodeTemplateInterfaceOperation(nodeTemplateName, interfaceName, operationName)
  66
  67         val artifactName: String = operationAssignment.implementation?.primary
  68                 ?: throw BluePrintProcessorException("missing primary field to get artifact name for node template ($nodeTemplateName)")
  69
  70         val artifactDefinition = bluePrintRuntimeService.resolveNodeTemplateArtifactDefinition(nodeTemplateName, artifactName)
  71
  72         val pythonFileName = artifactDefinition.file
  73                 ?: throw BluePrintProcessorException("missing file name for node template ($nodeTemplateName)'s artifactName($artifactName)")
  74
  75         val pythonClassName = FilenameUtils.getBaseName(pythonFileName)
  76
  77         val content: String? = bluePrintRuntimeService.resolveNodeTemplateArtifact(nodeTemplateName, artifactName)
  78
  79         checkNotEmptyOrThrow(content, "artifact ($artifactName) content is empty")
  80
  81         val instanceDependenciesNode: ArrayNode = operationInputs[PythonExecutorConstants.INPUT_INSTANCE_DEPENDENCIES] as? ArrayNode
  82                 ?: throw BluePrintProcessorException("Failed to get property(${PythonExecutorConstants.INPUT_INSTANCE_DEPENDENCIES})")
  83
  84         val jythonInstance: MutableMap<String, Any> = hashMapOf()
  85         jythonInstance["log"] = LoggerFactory.getLogger(pythonClassName)
  86         jythonInstance["bluePrintRuntimeService"] = bluePrintRuntimeService
  87
  88         instanceDependenciesNode.forEach { instanceName ->
  89             jythonInstance[instanceName.textValue()] = applicationContext.getBean(instanceName.textValue())
  90         }
  91
  92         // Setup componentFunction
  93         componentFunction = blueprintJythonService.jythonInstance(bluePrintContext, pythonClassName,
  94                 content!!, jythonInstance)
  95         componentFunction?.bluePrintRuntimeService = bluePrintRuntimeService
  96         componentFunction?.executionServiceInput = executionServiceInput
  97         componentFunction?.stepName = stepName
  98         componentFunction?.interfaceName = interfaceName
  99         componentFunction?.operationName = operationName
 100         componentFunction?.processId = processId
 101         componentFunction?.workflowName = workflowName
 102     }
 103 }