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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.utils
import arrow.effects.IO
import org.onap.dcae.collectors.veshv.utils.logging.Logger
import reactor.netty.DisposableServer
import java.time.Duration
/**
* @author Piotr Jaszczyk <piotr.jaszczyk@nokia.com>
* @since August 2018
*/
abstract class ServerHandle(val host: String, val port: Int) {
abstract fun shutdown(): IO<Unit>
abstract fun await(): IO<Unit>
}
/**
* @author Piotr Jaszczyk <piotr.jaszczyk@nokia.com>
* @since August 2018
*/
class NettyServerHandle(private val ctx: DisposableServer) : ServerHandle(ctx.host(), ctx.port()) {
override fun shutdown() = IO {
logger.info { "Graceful shutdown" }
ctx.disposeNow(SHUTDOWN_TIMEOUT)
logger.info { "Server disposed" }
}
override fun await() = IO<Unit> {
ctx.channel().closeFuture().sync()
}
companion object {
val logger = Logger(NettyServerHandle::class)
private val SHUTDOWN_TIMEOUT = Duration.ofSeconds(10)
}
}
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