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

   1 /*
   2  * Copyright © 2019 Bell Canada
   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 package org.onap.ccsdk.cds.blueprintsprocessor.selfservice.api
  17
  18 import kotlinx.coroutines.async
  19 import kotlinx.coroutines.runBlocking
  20 import org.apache.commons.lang3.builder.ToStringBuilder
  21 import org.apache.kafka.clients.consumer.ConsumerRecord
  22 import org.onap.ccsdk.cds.blueprintsprocessor.core.api.data.ExecutionServiceInput
  23 import org.onap.ccsdk.cds.blueprintsprocessor.message.service.BluePrintMessageLibPropertyService
  24 import org.slf4j.LoggerFactory
  25 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty
  26 import org.springframework.kafka.annotation.KafkaListener
  27 import org.springframework.stereotype.Service
  28
  29 //TODO("Implement with property service and remove spring bindings")
  30 @ConditionalOnProperty(name = ["blueprintsprocessor.messageclient.self-service-api.kafkaEnable"], havingValue = "true")
  31 @Service
  32 open class MessagingController(private val propertyService: BluePrintMessageLibPropertyService,
  33                                private val executionServiceHandler: ExecutionServiceHandler) {
  34
  35     private val log = LoggerFactory.getLogger(MessagingController::class.java)!!
  36
  37     companion object {
  38         // TODO PREFIX should be retrieved from model or from request.
  39         const val PREFIX = "self-service-api"
  40         const val EXECUTION_STATUS = 200
  41     }
  42
  43     @KafkaListener(topics = ["\${blueprintsprocessor.messageclient.self-service-api.consumerTopic}"])
  44     open fun receive(record: ConsumerRecord<String, ExecutionServiceInput>) {
  45
  46         runBlocking {
  47             log.info("Successfully received a message: {}", ToStringBuilder.reflectionToString(record.value()))
  48
  49             // Process the message.
  50             async {
  51                 processMessage(record.value())
  52             }.await()
  53         }
  54     }
  55
  56     private suspend fun processMessage(executionServiceInput: ExecutionServiceInput) {
  57
  58         val executionServiceOutput = executionServiceHandler.doProcess(executionServiceInput)
  59
  60         if (executionServiceOutput.status.code == EXECUTION_STATUS) {
  61             val blueprintMessageProducerService = propertyService.blueprintMessageProducerService(PREFIX)
  62
  63             val payload = executionServiceOutput.payload
  64
  65             log.info("The payload to publish is {}", payload)
  66
  67             blueprintMessageProducerService.sendMessage(payload)
  68         } else {
  69             log.error("Fail to process the given event due to {}", executionServiceOutput.status.errorMessage)
  70         }
  71     }
  72 }