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.asJsonPrimitive
  26 import org.onap.ccsdk.cds.controllerblueprints.core.data.Implementation
  27 import org.onap.ccsdk.cds.controllerblueprints.core.service.BluePrintDependencyService
  28 import org.onap.ccsdk.cds.controllerblueprints.core.service.BluePrintRuntimeService
  29 import org.slf4j.LoggerFactory
  30 import org.springframework.stereotype.Service
  31
  32 @Service
  33 open class NodeTemplateExecutionService {
  34
  35     private val log = LoggerFactory.getLogger(NodeTemplateExecutionService::class.java)!!
  36
  37     suspend fun executeNodeTemplate(
  38         bluePrintRuntimeService: BluePrintRuntimeService<*>,
  39         nodeTemplateName: String,
  40         executionServiceInput: ExecutionServiceInput
  41     ): ExecutionServiceOutput {
  42         // Get the Blueprint Context
  43         val blueprintContext = bluePrintRuntimeService.bluePrintContext()
  44
  45         val nodeTemplate = blueprintContext.nodeTemplateByName(nodeTemplateName)
  46         // Get the Component Name, NodeTemplate type is mapped to Component Name
  47         val componentName = nodeTemplate.type
  48
  49         val interfaceName = blueprintContext.nodeTemplateFirstInterfaceName(nodeTemplateName)
  50
  51         val operationName = blueprintContext.nodeTemplateFirstInterfaceFirstOperationName(nodeTemplateName)
  52
  53         val nodeTemplateImplementation = blueprintContext
  54             .nodeTemplateOperationImplementation(nodeTemplateName, interfaceName, operationName)
  55             ?: Implementation()
  56
  57         log.info(
  58             "executing node template($nodeTemplateName) component($componentName) " +
  59                 "interface($interfaceName) operation($operationName) on host (${nodeTemplateImplementation.operationHost}) " +
  60                 "with timeout(${nodeTemplateImplementation.timeout}) sec."
  61         )
  62
  63         // Get the Component Instance
  64         val plugin = BluePrintDependencyService.instance<AbstractComponentFunction>(componentName)
  65         // Set the Blueprint Service
  66         plugin.bluePrintRuntimeService = bluePrintRuntimeService
  67         plugin.stepName = nodeTemplateName
  68
  69         // Parent request shouldn't tamper, so need to clone the request and send to the actual component.
  70         val clonedExecutionServiceInput = ExecutionServiceInput().apply {
  71             commonHeader = executionServiceInput.commonHeader
  72             actionIdentifiers = executionServiceInput.actionIdentifiers
  73             payload = executionServiceInput.payload
  74         }
  75
  76         // Populate Step Meta Data
  77         val stepInputs: MutableMap<String, JsonNode> = hashMapOf()
  78         stepInputs[BluePrintConstants.PROPERTY_CURRENT_NODE_TEMPLATE] = nodeTemplateName.asJsonPrimitive()
  79         stepInputs[BluePrintConstants.PROPERTY_CURRENT_INTERFACE] = interfaceName.asJsonPrimitive()
  80         stepInputs[BluePrintConstants.PROPERTY_CURRENT_OPERATION] = operationName.asJsonPrimitive()
  81         val stepInputData = StepData().apply {
  82             name = nodeTemplateName
  83             properties = stepInputs
  84         }
  85         clonedExecutionServiceInput.stepData = stepInputData
  86
  87         // Get the Request from the Context and Set to the Function Input and Invoke the function
  88         return plugin.applyNB(clonedExecutionServiceInput)
  89     }
  90 }