Service.kt 1.55 KB
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/*
 * mapper-service
 * Copyright (C) 2020 Memoriav
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

package org.memobase

import org.apache.kafka.streams.KafkaStreams
import org.apache.logging.log4j.LogManager
import org.memobase.settings.SettingsLoader

class Service(file: String = "app.yml") {
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    private val log = LogManager.getLogger("MapperService")
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    val settings = SettingsLoader(
        listOf(
            "institutionId",
            "recordSetId",
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            "configs",
            "isPublished"
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        ),
        file,
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        useStreamsConfig = true
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    )
    fun run() {
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        val stream = KafkaStreams(KafkaTopology(settings).prepare().build(), settings.kafkaStreamsSettings)
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        stream.use {
            it.start()
            while (stream.state().isRunning) {
                log.info("Service is running.")
                Thread.sleep(10_000L)
            }
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            throw Exception("Stream stopped running!")
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        }
    }
}