2 * Copyright © 2017-2018 AT&T Intellectual Property.
3 * Modifications Copyright © 2019 IBM.
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
9 * http://www.apache.org/licenses/LICENSE-2.0
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.
18 package org.onap.ccsdk.cds.blueprintsprocessor.selfservice.api
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.ACTION_MODE_ASYNC
25 import org.onap.ccsdk.cds.blueprintsprocessor.core.api.data.ACTION_MODE_SYNC
26 import org.onap.ccsdk.cds.blueprintsprocessor.core.api.data.ExecutionServiceInput
27 import org.onap.ccsdk.cds.blueprintsprocessor.core.api.data.ExecutionServiceOutput
28 import org.onap.ccsdk.cds.blueprintsprocessor.core.api.data.Status
29 import org.onap.ccsdk.cds.blueprintsprocessor.core.utils.toProto
30 import org.onap.ccsdk.cds.blueprintsprocessor.services.execution.AbstractServiceFunction
31 import org.onap.ccsdk.cds.controllerblueprints.common.api.EventType
32 import org.onap.ccsdk.cds.controllerblueprints.core.BluePrintConstants
33 import org.onap.ccsdk.cds.controllerblueprints.core.config.BluePrintLoadConfiguration
34 import org.onap.ccsdk.cds.controllerblueprints.core.interfaces.BluePrintCatalogService
35 import org.onap.ccsdk.cds.controllerblueprints.core.interfaces.BluePrintWorkflowExecutionService
36 import org.onap.ccsdk.cds.controllerblueprints.core.service.BluePrintDependencyService
37 import org.onap.ccsdk.cds.controllerblueprints.core.utils.BluePrintMetadataUtils
38 import org.slf4j.LoggerFactory
39 import org.springframework.stereotype.Service
40 import java.util.stream.Collectors
43 class ExecutionServiceHandler(
44 private val bluePrintLoadConfiguration: BluePrintLoadConfiguration,
45 private val blueprintsProcessorCatalogService: BluePrintCatalogService,
46 private val bluePrintWorkflowExecutionService:
47 BluePrintWorkflowExecutionService<ExecutionServiceInput, ExecutionServiceOutput>
50 private val log = LoggerFactory.getLogger(ExecutionServiceHandler::class.toString())
53 executionServiceInput: ExecutionServiceInput,
54 responseObserver: StreamObserver<org.onap.ccsdk.cds.controllerblueprints.processing.api.ExecutionServiceOutput>
57 executionServiceInput.actionIdentifiers.mode == ACTION_MODE_ASYNC -> {
58 GlobalScope.launch(Dispatchers.Default) {
59 val executionServiceOutput = doProcess(executionServiceInput)
60 responseObserver.onNext(executionServiceOutput.toProto())
61 responseObserver.onCompleted()
63 responseObserver.onNext(response(executionServiceInput).toProto())
65 executionServiceInput.actionIdentifiers.mode == ACTION_MODE_SYNC -> {
66 val executionServiceOutput = doProcess(executionServiceInput)
67 responseObserver.onNext(executionServiceOutput.toProto())
68 responseObserver.onCompleted()
70 else -> responseObserver.onNext(
72 executionServiceInput,
73 "Failed to process request, 'actionIdentifiers.mode' not specified. Valid value are: 'sync' or 'async'.",
80 suspend fun doProcess(executionServiceInput: ExecutionServiceInput): ExecutionServiceOutput {
81 val requestId = executionServiceInput.commonHeader.requestId
82 log.info("processing request id $requestId")
83 val actionIdentifiers = executionServiceInput.actionIdentifiers
84 val blueprintName = actionIdentifiers.blueprintName
85 val blueprintVersion = actionIdentifiers.blueprintVersion
87 /** Check Blueprint is needed for this request */
88 if (checkServiceFunction(executionServiceInput)) {
89 return executeServiceFunction(executionServiceInput)
91 val basePath = blueprintsProcessorCatalogService.getFromDatabase(blueprintName, blueprintVersion)
92 log.info("blueprint base path $basePath")
94 val blueprintRuntimeService = BluePrintMetadataUtils.getBluePrintRuntime(requestId, basePath.toString())
96 val output = bluePrintWorkflowExecutionService.executeBluePrintWorkflow(
97 blueprintRuntimeService,
98 executionServiceInput, hashMapOf()
101 val errors = blueprintRuntimeService.getBluePrintError().errors
102 if (errors.isNotEmpty()) {
103 val errorMessage = errors.stream().map { it.toString() }.collect(Collectors.joining(", "))
104 setErrorStatus(errorMessage, output.status)
108 } catch (e: Exception) {
109 log.error("fail processing request id $requestId", e)
110 return response(executionServiceInput, e.localizedMessage ?: e.message ?: e.toString(), true)
114 /** If the blueprint name is default, It means no blueprint is needed for the execution */
115 fun checkServiceFunction(executionServiceInput: ExecutionServiceInput): Boolean {
116 return executionServiceInput.actionIdentifiers.blueprintName == "default"
119 /** If no blueprint is needed, then get the Service function instance mapping to the action name and execute it */
120 suspend fun executeServiceFunction(executionServiceInput: ExecutionServiceInput): ExecutionServiceOutput {
121 val actionName = executionServiceInput.actionIdentifiers.actionName
122 val instance = BluePrintDependencyService.instance<AbstractServiceFunction>(actionName)
123 checkNotNull(instance) { "failed to initialize service function($actionName)" }
124 instance.actionName = actionName
125 return instance.applyNB(executionServiceInput)
128 private fun setErrorStatus(errorMessage: String, status: Status) {
129 status.errorMessage = errorMessage
130 status.eventType = EventType.EVENT_COMPONENT_FAILURE.name
132 status.message = BluePrintConstants.STATUS_FAILURE
135 private fun response(
136 executionServiceInput: ExecutionServiceInput,
137 errorMessage: String = "",
138 failure: Boolean = false
139 ): ExecutionServiceOutput {
140 val executionServiceOutput = ExecutionServiceOutput()
141 executionServiceOutput.commonHeader = executionServiceInput.commonHeader
142 executionServiceOutput.actionIdentifiers = executionServiceInput.actionIdentifiers
143 executionServiceOutput.payload = executionServiceInput.payload
145 val status = Status()
147 setErrorStatus(errorMessage, status)
149 status.eventType = EventType.EVENT_COMPONENT_PROCESSING.name
151 status.message = BluePrintConstants.STATUS_PROCESSING
154 executionServiceOutput.status = status
156 return executionServiceOutput