ms/blueprintsprocessor/functions/message-prioritization/src/main/kotlin/org/onap/ccsdk/cds/blueprintsprocessor/functions/message/prioritization/kafka/DefaultMessagePrioritizeProcessor.kt

   1 /*
   2  * Copyright © 2018-2019 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.cds.blueprintsprocessor.functions.message.prioritization.kafka
  18
  19 import org.apache.kafka.streams.processor.ProcessorContext
  20 import org.apache.kafka.streams.processor.To
  21 import org.onap.ccsdk.cds.blueprintsprocessor.functions.message.prioritization.MessagePrioritizationConstants
  22 import org.onap.ccsdk.cds.blueprintsprocessor.functions.message.prioritization.MessagePrioritizationService
  23 import org.onap.ccsdk.cds.blueprintsprocessor.functions.message.prioritization.MessagePrioritizationStateService
  24 import org.onap.ccsdk.cds.blueprintsprocessor.functions.message.prioritization.MessageState
  25 import org.onap.ccsdk.cds.blueprintsprocessor.functions.message.prioritization.db.MessagePrioritization
  26 import org.onap.ccsdk.cds.controllerblueprints.core.BluePrintProcessorException
  27 import org.onap.ccsdk.cds.controllerblueprints.core.logger
  28 import org.onap.ccsdk.cds.controllerblueprints.core.utils.JacksonUtils
  29
  30 open class DefaultMessagePrioritizeProcessor(
  31     private val messagePrioritizationStateService: MessagePrioritizationStateService,
  32     private val kafkaMessagePrioritizationService: MessagePrioritizationService
  33 ) : AbstractMessagePrioritizeProcessor<ByteArray, ByteArray>() {
  34
  35     private val log = logger(DefaultMessagePrioritizeProcessor::class)
  36
  37     override suspend fun processNB(key: ByteArray, value: ByteArray) {
  38
  39         val messagePrioritize = JacksonUtils.readValue(String(value), MessagePrioritization::class.java)
  40             ?: throw BluePrintProcessorException("failed to convert")
  41         try {
  42             kafkaMessagePrioritizationService.prioritize(messagePrioritize)
  43         } catch (e: Exception) {
  44             messagePrioritize.error = "failed in Prioritize message(${messagePrioritize.id}) : ${e.message}"
  45             log.error(messagePrioritize.error)
  46             /** Update the data store */
  47             messagePrioritizationStateService.setMessageStateANdError(
  48                 messagePrioritize.id, MessageState.ERROR.name,
  49                 messagePrioritize.error!!
  50             )
  51             /** Publish to Output topic */
  52             this.processorContext.forward(
  53                 messagePrioritize.id, messagePrioritize,
  54                 To.child(MessagePrioritizationConstants.SINK_OUTPUT)
  55             )
  56         }
  57     }
  58
  59     override fun init(context: ProcessorContext) {
  60         super.init(context)
  61         /** Set Configuration and Processor Context to messagePrioritizationService */
  62         if (kafkaMessagePrioritizationService is AbstractKafkaMessagePrioritizationService) {
  63             kafkaMessagePrioritizationService.setKafkaProcessorContext(processorContext)
  64         } else {
  65             throw BluePrintProcessorException(
  66                 "messagePrioritizationService is not instance of " +
  67                     "AbstractKafkaMessagePrioritizationService, it is ${kafkaMessagePrioritizationService.javaClass}"
  68             )
  69         }
  70     }
  71
  72     override fun close() {
  73         log.info(
  74             "closing prioritization processor applicationId(${processorContext.applicationId()}), " +
  75                 "taskId(${processorContext.taskId()})"
  76         )
  77     }
  78 }