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

   1 /*\r
   2  *  Copyright © 2017-2018 AT&T Intellectual Property.\r
   3  *  Modifications Copyright © 2019 IBM.\r
   4  *\r
   5  *  Licensed under the Apache License, Version 2.0 (the "License");\r
   6  *  you may not use this file except in compliance with the License.\r
   7  *  You may obtain a copy of the License at\r
   8  *\r
   9  *      http://www.apache.org/licenses/LICENSE-2.0\r
  10  *\r
  11  *  Unless required by applicable law or agreed to in writing, software\r
  12  *  distributed under the License is distributed on an "AS IS" BASIS,\r
  13  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\r
  14  *  See the License for the specific language governing permissions and\r
  15  *  limitations under the License.\r
  16  */\r
  17 \r
  18 package org.onap.ccsdk.apps.blueprintsprocessor.services.execution\r
  19 \r
  20 \r
  21 import com.fasterxml.jackson.databind.JsonNode\r
  22 import com.fasterxml.jackson.databind.node.JsonNodeFactory\r
  23 import org.onap.ccsdk.apps.blueprintsprocessor.core.api.data.ExecutionServiceInput\r
  24 import org.onap.ccsdk.apps.blueprintsprocessor.core.api.data.ExecutionServiceOutput\r
  25 import org.onap.ccsdk.apps.blueprintsprocessor.core.api.data.Status\r
  26 import org.onap.ccsdk.apps.controllerblueprints.core.BluePrintConstants\r
  27 import org.onap.ccsdk.apps.controllerblueprints.core.BluePrintProcessorException\r
  28 import org.onap.ccsdk.apps.controllerblueprints.core.asJsonNode\r
  29 import org.onap.ccsdk.apps.controllerblueprints.core.getAsString\r
  30 import org.onap.ccsdk.apps.controllerblueprints.core.interfaces.BlueprintFunctionNode\r
  31 import org.onap.ccsdk.apps.controllerblueprints.core.service.BluePrintRuntimeService\r
  32 import org.onap.ccsdk.apps.controllerblueprints.core.utils.JacksonUtils\r
  33 import org.slf4j.LoggerFactory\r
  34 \r
  35 /**\r
  36  * AbstractComponentFunction\r
  37  * @author Brinda Santh\r
  38  */\r
  39 abstract class AbstractComponentFunction : BlueprintFunctionNode<ExecutionServiceInput, ExecutionServiceOutput> {\r
  40     @Transient\r
  41     private val log = LoggerFactory.getLogger(AbstractComponentFunction::class.java)\r
  42 \r
  43     lateinit var executionServiceInput: ExecutionServiceInput\r
  44     var executionServiceOutput = ExecutionServiceOutput()\r
  45     lateinit var bluePrintRuntimeService: BluePrintRuntimeService<*>\r
  46     lateinit var processId: String\r
  47     lateinit var workflowName: String\r
  48     lateinit var stepName: String\r
  49     lateinit var interfaceName: String\r
  50     lateinit var operationName: String\r
  51     lateinit var nodeTemplateName: String\r
  52     var operationInputs: MutableMap<String, JsonNode> = hashMapOf()\r
  53     /**\r
  54      * Store Dynamic Dependency Instances\r
  55      */\r
  56     var functionDependencyInstances: MutableMap<String, Any> = hashMapOf()\r
  57 \r
  58     override fun getName(): String {\r
  59         return stepName\r
  60     }\r
  61 \r
  62     override fun prepareRequest(executionRequest: ExecutionServiceInput): ExecutionServiceInput {\r
  63         checkNotNull(bluePrintRuntimeService) { "failed to prepare blueprint runtime" }\r
  64 \r
  65         check(stepName.isNotEmpty()) { "failed to assign step name" }\r
  66 \r
  67         this.executionServiceInput = executionRequest\r
  68 \r
  69         processId = executionRequest.commonHeader.requestId\r
  70         check(processId.isNotEmpty()) { "couldn't get process id for step($stepName)" }\r
  71 \r
  72         workflowName = executionRequest.actionIdentifiers.actionName\r
  73         check(workflowName.isNotEmpty()) { "couldn't get action name for step($stepName)" }\r
  74 \r
  75         log.info("preparing request id($processId) for workflow($workflowName) step($stepName)")\r
  76 \r
  77         val operationInputs = bluePrintRuntimeService.get("$stepName-step-inputs")\r
  78                 ?: JsonNodeFactory.instance.objectNode()\r
  79 \r
  80         operationInputs.fields().forEach {\r
  81             this.operationInputs[it.key] = it.value\r
  82         }\r
  83 \r
  84         nodeTemplateName = this.operationInputs.getAsString(BluePrintConstants.PROPERTY_CURRENT_NODE_TEMPLATE)\r
  85         check(nodeTemplateName.isNotEmpty()) { "couldn't get NodeTemplate name for step($stepName)" }\r
  86 \r
  87         interfaceName = this.operationInputs.getAsString(BluePrintConstants.PROPERTY_CURRENT_INTERFACE)\r
  88         check(interfaceName.isNotEmpty()) { "couldn't get Interface name for step($stepName)" }\r
  89 \r
  90         operationName = this.operationInputs.getAsString(BluePrintConstants.PROPERTY_CURRENT_OPERATION)\r
  91         check(operationName.isNotEmpty()) { "couldn't get Operation name for step($stepName)" }\r
  92 \r
  93         val operationResolvedProperties = bluePrintRuntimeService.resolveNodeTemplateInterfaceOperationInputs(nodeTemplateName, interfaceName, operationName)\r
  94 \r
  95         this.operationInputs.putAll(operationResolvedProperties)\r
  96 \r
  97         return executionRequest\r
  98     }\r
  99 \r
 100     override fun prepareResponse(): ExecutionServiceOutput {\r
 101         log.info("Preparing Response...")\r
 102         executionServiceOutput.commonHeader = executionServiceInput.commonHeader\r
 103         executionServiceOutput.actionIdentifiers = executionServiceInput.actionIdentifiers\r
 104 \r
 105 \r
 106         // Resolve the Output Expression\r
 107         val stepOutputs = bluePrintRuntimeService\r
 108                 .resolveNodeTemplateInterfaceOperationOutputs(nodeTemplateName, interfaceName, operationName)\r
 109 \r
 110         bluePrintRuntimeService.put("$stepName-step-outputs", stepOutputs.asJsonNode())\r
 111 \r
 112         executionServiceOutput.payload = JacksonUtils.objectNodeFromObject(stepOutputs)\r
 113 \r
 114         // Populate Status\r
 115         val status = Status()\r
 116         status.eventType = "EVENT-COMPONENT-EXECUTED"\r
 117         status.code = 200\r
 118         status.message = BluePrintConstants.STATUS_SUCCESS\r
 119         executionServiceOutput.status = status\r
 120         return this.executionServiceOutput\r
 121     }\r
 122 \r
 123     override fun apply(executionServiceInput: ExecutionServiceInput): ExecutionServiceOutput {\r
 124         prepareRequest(executionServiceInput)\r
 125         process(executionServiceInput)\r
 126         return prepareResponse()\r
 127     }\r
 128 \r
 129     fun getOperationInput(key: String): JsonNode {\r
 130         return operationInputs[key]\r
 131                 ?: throw BluePrintProcessorException("couldn't get the operation input($key) value.")\r
 132     }\r
 133 \r
 134     fun setAttribute(key: String, value: JsonNode) {\r
 135         bluePrintRuntimeService.setNodeTemplateAttributeValue(nodeTemplateName, key, value)\r
 136     }\r
 137 \r
 138     /**\r
 139      * This will be called from the scripts to serve instance from runtime to scripts.\r
 140      */\r
 141     open fun <T> functionDependencyInstanceAsType(name: String): T {\r
 142         return functionDependencyInstances[name] as? T\r
 143                 ?: throw BluePrintProcessorException("couldn't get script property instance ($name)")\r
 144     }\r
 145 }