ms/blueprintsprocessor/modules/services/workflow-service/src/main/kotlin/org/onap/ccsdk/cds/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.cds.blueprintsprocessor.services.workflow
  18
  19 import com.fasterxml.jackson.databind.JsonNode
  20 import org.onap.ccsdk.cds.blueprintsprocessor.core.api.data.ExecutionServiceInput
  21 import org.onap.ccsdk.cds.blueprintsprocessor.core.api.data.ExecutionServiceOutput
  22 import org.onap.ccsdk.cds.blueprintsprocessor.core.api.data.StepData
  23 import org.onap.ccsdk.cds.blueprintsprocessor.services.execution.AbstractComponentFunction
  24 import org.onap.ccsdk.cds.controllerblueprints.core.BluePrintConstants
  25 import org.onap.ccsdk.cds.controllerblueprints.core.putJsonElement
  26 import org.onap.ccsdk.cds.controllerblueprints.core.service.BluePrintRuntimeService
  27 import org.slf4j.LoggerFactory
  28 import org.springframework.context.ApplicationContext
  29 import org.springframework.stereotype.Service
  30
  31 @Service
  32 open class NodeTemplateExecutionService(private val applicationContext: ApplicationContext) {
  33
  34     private val log = LoggerFactory.getLogger(NodeTemplateExecutionService::class.java)!!
  35
  36     suspend fun executeNodeTemplate(bluePrintRuntimeService: BluePrintRuntimeService<*>, nodeTemplateName: String,
  37                                     executionServiceInput: ExecutionServiceInput): ExecutionServiceOutput {
  38         // Get the Blueprint Context
  39         val blueprintContext = bluePrintRuntimeService.bluePrintContext()
  40         // Get the Component Name, NodeTemplate type is mapped to Component Name
  41         val componentName = blueprintContext.nodeTemplateByName(nodeTemplateName).type
  42
  43         val interfaceName = blueprintContext.nodeTemplateFirstInterfaceName(nodeTemplateName)
  44
  45         val operationName = blueprintContext.nodeTemplateFirstInterfaceFirstOperationName(nodeTemplateName)
  46
  47         log.info("executing node template($nodeTemplateName) component($componentName) " +
  48                 "interface($interfaceName) operation($operationName)")
  49
  50         // Get the Component Instance
  51         val plugin = applicationContext.getBean(componentName, AbstractComponentFunction::class.java)
  52         // Set the Blueprint Service
  53         plugin.bluePrintRuntimeService = bluePrintRuntimeService
  54         plugin.stepName = nodeTemplateName
  55
  56         // Parent request shouldn't tamper, so need to clone the request and send to the actual component.
  57         val clonedExecutionServiceInput = ExecutionServiceInput().apply {
  58             commonHeader = executionServiceInput.commonHeader
  59             actionIdentifiers = executionServiceInput.actionIdentifiers
  60             payload = executionServiceInput.payload
  61         }
  62
  63         // Populate Step Meta Data
  64         val stepInputs: MutableMap<String, JsonNode> = hashMapOf()
  65         stepInputs.putJsonElement(BluePrintConstants.PROPERTY_CURRENT_NODE_TEMPLATE, nodeTemplateName)
  66         stepInputs.putJsonElement(BluePrintConstants.PROPERTY_CURRENT_INTERFACE, interfaceName)
  67         stepInputs.putJsonElement(BluePrintConstants.PROPERTY_CURRENT_OPERATION, operationName)
  68         val stepInputData = StepData().apply {
  69             name = nodeTemplateName
  70             properties = stepInputs
  71         }
  72         clonedExecutionServiceInput.stepData = stepInputData
  73
  74         // Get the Request from the Context and Set to the Function Input and Invoke the function
  75         return plugin.applyNB(clonedExecutionServiceInput)
  76     }
  77
  78 }