ms/blueprintsprocessor/modules/services/workflow-service/src/main/kotlin/org/onap/ccsdk/apps/blueprintsprocessor/services/workflow/NodeTemplateExecutionService.kt

   1 /*
   2  *  Copyright © 2019 IBM.
   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.services.workflow
  18
  19 import com.fasterxml.jackson.databind.JsonNode
  20 import kotlinx.coroutines.Dispatchers
  21 import kotlinx.coroutines.withContext
  22 import org.onap.ccsdk.apps.blueprintsprocessor.core.api.data.ExecutionServiceInput
  23 import org.onap.ccsdk.apps.blueprintsprocessor.core.api.data.ExecutionServiceOutput
  24 import org.onap.ccsdk.apps.blueprintsprocessor.services.execution.AbstractComponentFunction
  25 import org.onap.ccsdk.apps.controllerblueprints.core.BluePrintConstants
  26 import org.onap.ccsdk.apps.controllerblueprints.core.asJsonNode
  27 import org.onap.ccsdk.apps.controllerblueprints.core.putJsonElement
  28 import org.onap.ccsdk.apps.controllerblueprints.core.service.BluePrintRuntimeService
  29 import org.slf4j.LoggerFactory
  30 import org.springframework.context.ApplicationContext
  31 import org.springframework.stereotype.Service
  32
  33 @Service
  34 open class NodeTemplateExecutionService(private val applicationContext: ApplicationContext) {
  35
  36     private val log = LoggerFactory.getLogger(NodeTemplateExecutionService::class.java)!!
  37
  38     suspend fun executeNodeTemplate(bluePrintRuntimeService: BluePrintRuntimeService<*>, nodeTemplateName: String,
  39                                     executionServiceInput: ExecutionServiceInput): ExecutionServiceOutput {
  40         // Get the Blueprint Context
  41         val blueprintContext = bluePrintRuntimeService.bluePrintContext()
  42         // Get the Component Name, NodeTemplate type is mapped to Component Name
  43         val componentName = blueprintContext.nodeTemplateByName(nodeTemplateName).type
  44
  45         val interfaceName = blueprintContext.nodeTemplateFirstInterfaceName(nodeTemplateName)
  46
  47         val operationName = blueprintContext.nodeTemplateFirstInterfaceFirstOperationName(nodeTemplateName)
  48
  49         log.info("executing node template($nodeTemplateName) component($componentName) " +
  50                 "interface($interfaceName) operation($operationName)")
  51
  52         // Get the Component Instance
  53         val plugin = applicationContext.getBean(componentName, AbstractComponentFunction::class.java)
  54         // Set the Blueprint Service
  55         plugin.bluePrintRuntimeService = bluePrintRuntimeService
  56         plugin.stepName = nodeTemplateName
  57
  58         // Populate Step Meta Data
  59         val stepInputs: MutableMap<String, JsonNode> = hashMapOf()
  60         stepInputs.putJsonElement(BluePrintConstants.PROPERTY_CURRENT_NODE_TEMPLATE, nodeTemplateName)
  61         stepInputs.putJsonElement(BluePrintConstants.PROPERTY_CURRENT_INTERFACE, interfaceName)
  62         stepInputs.putJsonElement(BluePrintConstants.PROPERTY_CURRENT_OPERATION, operationName)
  63
  64         plugin.bluePrintRuntimeService.put("$nodeTemplateName-step-inputs", stepInputs.asJsonNode())
  65
  66         // Get the Request from the Context and Set to the Function Input and Invoke the function
  67         return withContext(Dispatchers.Default) {
  68             plugin.apply(executionServiceInput)
  69         }
  70     }
  71
  72 }