ms/blueprintsprocessor/modules/inbounds/selfservice-api/src/main/kotlin/org/onap/ccsdk/cds/blueprintsprocessor/selfservice/api/ExecutionServiceHandler.kt

   1 /*
   2  * Copyright © 2017-2018 AT&T Intellectual Property.
   3  * Modifications Copyright © 2019 IBM.
   4  *
   5  * Licensed under the Apache License, Version 2.0 (the "License");
   6  * you may not use this file except in compliance with the License.
   7  * You may obtain a copy of the License at
   8  *
   9  *     http://www.apache.org/licenses/LICENSE-2.0
  10  *
  11  * Unless required by applicable law or agreed to in writing, software
  12  * distributed under the License is distributed on an "AS IS" BASIS,
  13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14  * See the License for the specific language governing permissions and
  15  * limitations under the License.
  16  */
  17
  18 package org.onap.ccsdk.cds.blueprintsprocessor.selfservice.api
  19
  20 import io.grpc.stub.StreamObserver
  21 import kotlinx.coroutines.Dispatchers
  22 import kotlinx.coroutines.GlobalScope
  23 import kotlinx.coroutines.launch
  24 import org.onap.ccsdk.cds.blueprintsprocessor.core.api.data.*
  25 import org.onap.ccsdk.cds.blueprintsprocessor.selfservice.api.utils.toProto
  26 import org.onap.ccsdk.cds.controllerblueprints.common.api.EventType
  27 import org.onap.ccsdk.cds.controllerblueprints.core.BluePrintConstants
  28 import org.onap.ccsdk.cds.controllerblueprints.core.config.BluePrintLoadConfiguration
  29 import org.onap.ccsdk.cds.controllerblueprints.core.interfaces.BluePrintCatalogService
  30 import org.onap.ccsdk.cds.controllerblueprints.core.interfaces.BluePrintWorkflowExecutionService
  31 import org.onap.ccsdk.cds.controllerblueprints.core.utils.BluePrintMetadataUtils
  32 import org.slf4j.LoggerFactory
  33 import org.springframework.stereotype.Service
  34 import java.util.stream.Collectors
  35
  36 @Service
  37 class ExecutionServiceHandler(private val bluePrintLoadConfiguration: BluePrintLoadConfiguration,
  38                               private val blueprintsProcessorCatalogService: BluePrintCatalogService,
  39                               private val bluePrintWorkflowExecutionService
  40                               : BluePrintWorkflowExecutionService<ExecutionServiceInput, ExecutionServiceOutput>) {
  41
  42     private val log = LoggerFactory.getLogger(ExecutionServiceHandler::class.toString())
  43
  44     suspend fun process(executionServiceInput: ExecutionServiceInput,
  45                         responseObserver: StreamObserver<org.onap.ccsdk.cds.controllerblueprints.processing.api.ExecutionServiceOutput>) {
  46         when {
  47             executionServiceInput.actionIdentifiers.mode == ACTION_MODE_ASYNC -> {
  48                 GlobalScope.launch(Dispatchers.Default) {
  49                     val executionServiceOutput = doProcess(executionServiceInput)
  50                     responseObserver.onNext(executionServiceOutput.toProto())
  51                     responseObserver.onCompleted()
  52                 }
  53                 responseObserver.onNext(response(executionServiceInput).toProto())
  54             }
  55             executionServiceInput.actionIdentifiers.mode == ACTION_MODE_SYNC -> {
  56                 val executionServiceOutput = doProcess(executionServiceInput)
  57                 responseObserver.onNext(executionServiceOutput.toProto())
  58                 responseObserver.onCompleted()
  59             }
  60             else -> responseObserver.onNext(response(executionServiceInput,
  61                     "Failed to process request, 'actionIdentifiers.mode' not specified. Valid value are: 'sync' or 'async'.",
  62                     true).toProto());
  63         }
  64     }
  65
  66     suspend fun doProcess(executionServiceInput: ExecutionServiceInput): ExecutionServiceOutput {
  67         val requestId = executionServiceInput.commonHeader.requestId
  68         log.info("processing request id $requestId")
  69         val actionIdentifiers = executionServiceInput.actionIdentifiers
  70         val blueprintName = actionIdentifiers.blueprintName
  71         val blueprintVersion = actionIdentifiers.blueprintVersion
  72         try {
  73             val basePath = blueprintsProcessorCatalogService.getFromDatabase(blueprintName, blueprintVersion)
  74             log.info("blueprint base path $basePath")
  75
  76             val blueprintRuntimeService = BluePrintMetadataUtils.getBluePrintRuntime(requestId, basePath.toString())
  77
  78             val output = bluePrintWorkflowExecutionService.executeBluePrintWorkflow(blueprintRuntimeService,
  79                     executionServiceInput, hashMapOf())
  80
  81             val errors = blueprintRuntimeService.getBluePrintError().errors
  82             if (errors.isNotEmpty()) {
  83                 val errorMessage = errors.stream().map { it.toString() }.collect(Collectors.joining(", "))
  84                 setErrorStatus(errorMessage, output.status)
  85             }
  86             return output
  87         } catch (e: Exception) {
  88             log.error("fail processing request id $requestId", e)
  89             return response(executionServiceInput, e.localizedMessage ?: e.message ?: e.toString(), true)
  90         }
  91     }
  92
  93     private fun setErrorStatus(errorMessage: String, status: Status) {
  94         status.errorMessage = errorMessage
  95         status.eventType = EventType.EVENT_COMPONENT_FAILURE.name
  96         status.code = 500
  97         status.message = BluePrintConstants.STATUS_FAILURE
  98     }
  99
 100     private fun response(executionServiceInput: ExecutionServiceInput, errorMessage: String = "",
 101                          failure: Boolean = false): ExecutionServiceOutput {
 102         val executionServiceOutput = ExecutionServiceOutput()
 103         executionServiceOutput.commonHeader = executionServiceInput.commonHeader
 104         executionServiceOutput.actionIdentifiers = executionServiceInput.actionIdentifiers
 105         executionServiceOutput.payload = executionServiceInput.payload
 106
 107         val status = Status()
 108         if (failure) {
 109             setErrorStatus(errorMessage, status)
 110         } else {
 111             status.eventType = EventType.EVENT_COMPONENT_PROCESSING.name
 112             status.code = 200
 113             status.message = BluePrintConstants.STATUS_PROCESSING
 114         }
 115
 116         executionServiceOutput.status = status
 117
 118         return executionServiceOutput
 119     }
 120
 121 }