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/*
* Copyright © 2018-2019 AT&T Intellectual Property.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.onap.ccsdk.cds.blueprintsprocessor.message.kafka
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.runBlocking
import org.apache.kafka.streams.processor.Processor
import org.apache.kafka.streams.processor.ProcessorContext
import org.apache.kafka.streams.processor.Punctuator
import org.onap.ccsdk.cds.controllerblueprints.core.logger
/** CDS Kafka Stream Processor abstract class to implement */
abstract class AbstractBluePrintMessageProcessor<K, V> : Processor<K, V> {
private val log = logger(AbstractBluePrintMessageProcessor::class)
lateinit var processorContext: ProcessorContext
override fun process(key: K, value: V) = runBlocking(Dispatchers.IO) {
try {
processNB(key, value)
} catch (e: Exception) {
log.error("failed in processor(${this.javaClass.simpleName}) message(${this.javaClass.simpleName} :", e)
}
}
override fun init(context: ProcessorContext) {
log.info("initializing processor (${this.javaClass.simpleName})")
this.processorContext = context
}
override fun close() {
log.info("closing processor (${this.javaClass.simpleName})")
}
abstract suspend fun processNB(key: K, value: V)
}
/** CDS Kafka Stream Punctuator abstract class to implement */
abstract class AbstractBluePrintMessagePunctuator : Punctuator {
lateinit var processorContext: ProcessorContext
override fun punctuate(timestamp: Long) = runBlocking(Dispatchers.IO) {
punctuateNB(timestamp)
}
abstract suspend fun punctuateNB(timestamp: Long)
}
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