ms/blueprintsprocessor/functions/python-executor/src/main/kotlin/org/onap/ccsdk/apps/blueprintsprocessor/functions/python/executor/ComponentJythonExecutor.kt

   1 /*
   2  * Copyright © 2017-2018 AT&T Intellectual Property.
   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
  17 package org.onap.ccsdk.apps.blueprintsprocessor.functions.python.executor
  18
  19 import com.fasterxml.jackson.databind.node.ArrayNode
  20 import org.apache.commons.io.FilenameUtils
  21 import org.onap.ccsdk.apps.blueprintsprocessor.core.api.data.ExecutionServiceInput
  22 import org.onap.ccsdk.apps.blueprintsprocessor.functions.python.executor.utils.PythonExecutorUtils
  23 import org.onap.ccsdk.apps.blueprintsprocessor.services.execution.AbstractComponentFunction
  24 import org.onap.ccsdk.apps.controllerblueprints.core.BluePrintProcessorException
  25 import org.onap.ccsdk.apps.controllerblueprints.core.checkNotEmptyNThrow
  26 import org.onap.ccsdk.apps.controllerblueprints.core.data.OperationAssignment
  27 import org.slf4j.LoggerFactory
  28 import org.springframework.beans.factory.annotation.Autowired
  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 val pythonExecutorProperty: PythonExecutorProperty) : AbstractComponentFunction() {
  37
  38     private val log = LoggerFactory.getLogger(ComponentJythonExecutor::class.java)
  39
  40     private var componentFunction: AbstractComponentFunction? = null
  41
  42     @Autowired
  43     lateinit var applicationContext: ApplicationContext
  44
  45     fun populateJythonComponentInstance(executionServiceInput: ExecutionServiceInput) {
  46         val bluePrintContext = bluePrintRuntimeService.bluePrintContext()
  47
  48         val operationAssignment: OperationAssignment = bluePrintContext
  49                 .nodeTemplateInterfaceOperation(nodeTemplateName, interfaceName, operationName)
  50
  51         val blueprintBasePath: String = bluePrintContext.rootPath
  52
  53         val artifactName: String = operationAssignment.implementation?.primary
  54                 ?: throw BluePrintProcessorException("missing primary field to get artifact name for node template ($nodeTemplateName)")
  55
  56         val artifactDefinition = bluePrintRuntimeService.resolveNodeTemplateArtifactDefinition(nodeTemplateName, artifactName)
  57
  58         val pythonFileName = artifactDefinition.file
  59                 ?: throw BluePrintProcessorException("missing file name for node template ($nodeTemplateName)'s artifactName($artifactName)")
  60
  61         val pythonClassName = FilenameUtils.getBaseName(pythonFileName)
  62
  63         val content: String? = bluePrintRuntimeService.resolveNodeTemplateArtifact(nodeTemplateName, artifactName)
  64
  65         checkNotEmptyNThrow(content, "artifact ($artifactName) content is empty")
  66
  67         val pythonPath: MutableList<String> = operationAssignment.implementation?.dependencies ?: arrayListOf()
  68         pythonPath.add(blueprintBasePath)
  69         pythonPath.addAll(pythonExecutorProperty.modulePaths)
  70
  71         val jythonInstances: MutableMap<String, Any> = hashMapOf()
  72         jythonInstances["log"] = LoggerFactory.getLogger(nodeTemplateName)
  73
  74         val instanceDependenciesNode: ArrayNode = operationInputs[PythonExecutorConstants.INPUT_INSTANCE_DEPENDENCIES] as? ArrayNode
  75                 ?: throw BluePrintProcessorException("Failed to get property(${PythonExecutorConstants.INPUT_INSTANCE_DEPENDENCIES})")
  76
  77         instanceDependenciesNode.forEach { instanceName ->
  78             jythonInstances[instanceName.textValue()] = applicationContext.getBean(instanceName.textValue())
  79         }
  80
  81         componentFunction = PythonExecutorUtils.getPythonComponent(pythonExecutorProperty.executionPath,
  82                 pythonPath, content, pythonClassName, jythonInstances)
  83     }
  84
  85
  86     override fun process(executionServiceInput: ExecutionServiceInput) {
  87
  88         log.info("Processing : $operationInputs")
  89         checkNotNull(bluePrintRuntimeService) { "failed to get bluePrintRuntimeService" }
  90
  91         // Populate Component Instance
  92         populateJythonComponentInstance(executionServiceInput)
  93
  94         // Invoke Jython Component Script
  95         componentFunction!!.process(executionServiceInput)
  96
  97     }
  98
  99     override fun recover(runtimeException: RuntimeException, executionRequest: ExecutionServiceInput) {
 100         componentFunction!!.recover(runtimeException, executionRequest)
 101     }
 102
 103 }