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/*
* ============LICENSE_START=======================================================
* dcaegen2-collectors-veshv
* ================================================================================
* Copyright (C) 2018 NOKIA
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.onap.dcae.collectors.veshv.impl.adapters
import org.onap.dcae.collectors.veshv.boundary.Sink
import org.onap.dcae.collectors.veshv.boundary.SinkProvider
import org.onap.dcae.collectors.veshv.impl.adapters.ClientContextLogging.info
import org.onap.dcae.collectors.veshv.impl.adapters.ClientContextLogging.trace
import org.onap.dcae.collectors.veshv.model.ClientContext
import org.onap.dcae.collectors.veshv.model.ConsumedMessage
import org.onap.dcae.collectors.veshv.model.RoutedMessage
import org.onap.dcae.collectors.veshv.model.SuccessfullyConsumedMessage
import org.onap.dcae.collectors.veshv.utils.logging.Logger
import reactor.core.publisher.Flux
import java.util.concurrent.atomic.AtomicLong
/**
* @author Piotr Jaszczyk <piotr.jaszczyk@nokia.com>
* @since June 2018
*/
internal class LoggingSinkProvider : SinkProvider {
override fun invoke(ctx: ClientContext): Sink {
return object : Sink {
private val totalMessages = AtomicLong()
private val totalBytes = AtomicLong()
override fun send(messages: Flux<RoutedMessage>): Flux<ConsumedMessage> =
messages.doOnNext(this::logMessage).map(::SuccessfullyConsumedMessage)
private fun logMessage(msg: RoutedMessage) {
val msgs = totalMessages.addAndGet(1)
val bytes = totalBytes.addAndGet(msg.message.wtpFrame.payloadSize.toLong())
val logMessageSupplier = { "Message routed to ${msg.topic}. Total = $msgs ($bytes B)" }
if (msgs % INFO_LOGGING_FREQ == 0L)
logger.info(ctx, logMessageSupplier)
else
logger.trace(ctx, logMessageSupplier)
}
}
}
companion object {
const val INFO_LOGGING_FREQ = 100_000
private val logger = Logger(LoggingSinkProvider::class)
}
}
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