gerrit.onap Code Review - ccsdk/cds.git/blob

   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.services.workflow.executor
  18
  19 import com.fasterxml.jackson.databind.JsonNode
  20 import kotlinx.coroutines.async
  21 import kotlinx.coroutines.coroutineScope
  22 import kotlinx.coroutines.runBlocking
  23 import org.onap.ccsdk.apps.blueprintsprocessor.core.api.data.ExecutionServiceInput
  24 import org.onap.ccsdk.apps.blueprintsprocessor.services.execution.AbstractComponentFunction
  25 import org.onap.ccsdk.apps.blueprintsprocessor.services.workflow.BlueprintSvcLogicContext
  26 import org.onap.ccsdk.apps.controllerblueprints.core.BluePrintConstants
  27 import org.onap.ccsdk.apps.controllerblueprints.core.asJsonNode
  28 import org.onap.ccsdk.apps.controllerblueprints.core.putJsonElement
  29 import org.onap.ccsdk.sli.core.sli.SvcLogicContext
  30 import org.onap.ccsdk.sli.core.sli.SvcLogicException
  31 import org.onap.ccsdk.sli.core.sli.SvcLogicNode
  32 import org.onap.ccsdk.sli.core.sli.provider.base.ExecuteNodeExecutor
  33 import org.onap.ccsdk.sli.core.sli.provider.base.SvcLogicExpressionResolver
  34 import org.onap.ccsdk.sli.core.sli.provider.base.SvcLogicServiceBase
  35 import org.slf4j.LoggerFactory
  36 import org.springframework.beans.factory.annotation.Autowired
  37 import org.springframework.context.ApplicationContext
  38 import org.springframework.stereotype.Service
  39
  40 @Service
  41 open class ComponentExecuteNodeExecutor : ExecuteNodeExecutor() {
  42
  43     private val log = LoggerFactory.getLogger(ComponentExecuteNodeExecutor::class.java)
  44
  45     @Autowired
  46     private lateinit var context: ApplicationContext
  47
  48     fun getComponentFunction(pluginName: String): AbstractComponentFunction {
  49         return context.getBean(pluginName, AbstractComponentFunction::class.java)
  50     }
  51
  52     @Throws(SvcLogicException::class)
  53     override fun execute(svc: SvcLogicServiceBase, node: SvcLogicNode, svcLogicContext: SvcLogicContext)
  54             : SvcLogicNode = runBlocking {
  55         coroutineScope {
  56             val job = async { executeAsy(svc, node, svcLogicContext) }
  57             job.await()
  58         }
  59     }
  60
  61
  62     private fun executeAsy(svc: SvcLogicServiceBase, node: SvcLogicNode, svcLogicContext: SvcLogicContext): SvcLogicNode {
  63
  64         var outValue: String
  65
  66         val ctx = svcLogicContext as BlueprintSvcLogicContext
  67
  68         val nodeTemplateName = SvcLogicExpressionResolver.evaluate(node.getAttribute("plugin"), node, ctx)
  69
  70         try {
  71             // Get the Blueprint Context
  72             val blueprintContext = ctx.getBluePrintService().bluePrintContext()
  73             // Get the Component Name, NodeTemplate type is mapped to Component Name
  74             val componentName = blueprintContext.nodeTemplateByName(nodeTemplateName).type
  75
  76             val interfaceName = blueprintContext.nodeTemplateFirstInterfaceName(nodeTemplateName)
  77
  78             val operationName = blueprintContext.nodeTemplateFirstInterfaceFirstOperationName(nodeTemplateName)
  79
  80             log.info("executing node template($nodeTemplateName) component($componentName) interface($interfaceName) operation($operationName)")
  81             // Get the Component Instance
  82             val plugin = this.getComponentFunction(componentName)
  83             // Set the Blueprint Service
  84             plugin.bluePrintRuntimeService = ctx.getBluePrintService()
  85             plugin.stepName = nodeTemplateName
  86
  87             val executionInput = ctx.getRequest() as ExecutionServiceInput
  88
  89             // Populate Step Meta Data
  90             val stepInputs: MutableMap<String, JsonNode> = hashMapOf()
  91             stepInputs.putJsonElement(BluePrintConstants.PROPERTY_CURRENT_NODE_TEMPLATE, nodeTemplateName)
  92             stepInputs.putJsonElement(BluePrintConstants.PROPERTY_CURRENT_INTERFACE, interfaceName)
  93             stepInputs.putJsonElement(BluePrintConstants.PROPERTY_CURRENT_OPERATION, operationName)
  94
  95             plugin.bluePrintRuntimeService.put("$nodeTemplateName-step-inputs", stepInputs.asJsonNode())
  96
  97             // Get the Request from the Context and Set to the Function Input and Invoke the function
  98             val executionOutput = plugin.apply(executionInput)
  99
 100             ctx.setResponse(executionOutput)
 101
 102             outValue = executionOutput.status.message
 103             ctx.status = executionOutput.status.message
 104
 105         } catch (e: Exception) {
 106             this.log.error("Could not execute plugin($nodeTemplateName) : ", e)
 107             outValue = "failure"
 108             ctx.status = "failure"
 109         }
 110
 111         return this.getNextNode(node, outValue)
 112     }
 113 }