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.service.BluePrintDependencyService
  27 import org.onap.ccsdk.cds.controllerblueprints.core.service.BluePrintRuntimeService
  28 import org.slf4j.LoggerFactory
  29 import org.springframework.stereotype.Service
  30
  31 @Service
  32 open class NodeTemplateExecutionService {
  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
  41         val nodeTemplate = blueprintContext.nodeTemplateByName(nodeTemplateName)
  42         // Get the Component Name, NodeTemplate type is mapped to Component Name
  43         val componentName = nodeTemplate.type
  44
  45         val interfaceName = blueprintContext.nodeTemplateFirstInterfaceName(nodeTemplateName)
  46
  47         val operationName = blueprintContext.nodeTemplateFirstInterfaceFirstOperationName(nodeTemplateName)
  48
  49         val nodeTemplateImplementation = blueprintContext
  50                 .nodeTemplateOperationImplementation(nodeTemplateName, interfaceName, operationName)
  51
  52         val timeout: Int = nodeTemplateImplementation?.timeout ?: 180
  53
  54         log.info("executing node template($nodeTemplateName) component($componentName) " +
  55                 "interface($interfaceName) operation($operationName) with timeout($timeout) sec.")
  56
  57         // Get the Component Instance
  58         val plugin = BluePrintDependencyService.instance<AbstractComponentFunction>(componentName)
  59         // Set the Blueprint Service
  60         plugin.bluePrintRuntimeService = bluePrintRuntimeService
  61         plugin.stepName = nodeTemplateName
  62
  63         // Parent request shouldn't tamper, so need to clone the request and send to the actual component.
  64         val clonedExecutionServiceInput = ExecutionServiceInput().apply {
  65             commonHeader = executionServiceInput.commonHeader
  66             actionIdentifiers = executionServiceInput.actionIdentifiers
  67             payload = executionServiceInput.payload
  68         }
  69
  70         // Populate Step Meta Data
  71         val stepInputs: MutableMap<String, JsonNode> = hashMapOf()
  72         stepInputs[BluePrintConstants.PROPERTY_CURRENT_NODE_TEMPLATE] = nodeTemplateName.asJsonPrimitive()
  73         stepInputs[BluePrintConstants.PROPERTY_CURRENT_INTERFACE] = interfaceName.asJsonPrimitive()
  74         stepInputs[BluePrintConstants.PROPERTY_CURRENT_OPERATION] = operationName.asJsonPrimitive()
  75         stepInputs[BluePrintConstants.PROPERTY_CURRENT_TIMEOUT] = timeout.asJsonPrimitive()
  76         val stepInputData = StepData().apply {
  77             name = nodeTemplateName
  78             properties = stepInputs
  79         }
  80         clonedExecutionServiceInput.stepData = stepInputData
  81
  82         // Get the Request from the Context and Set to the Function Input and Invoke the function
  83         return plugin.applyNB(clonedExecutionServiceInput)
  84     }
  85
  86 }