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/*
* MIT License
*
* Copyright (c) 2017 atlarge-research
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package platform
import com.atlarge.opendc.model.odc.platform.JpaExperimentManager
import com.atlarge.opendc.omega.OmegaKernelFactory
import mu.KotlinLogging
import java.util.concurrent.Executors
import javax.persistence.Persistence
val logger = KotlinLogging.logger {}
/**
* The main entry point of the program. This program polls experiments from a database and runs the
* simulation and reports the results back to the database.
*
* @param args The command line arguments of the program.
*/
fun main(args: Array<String>) {
val properties = HashMap<Any, Any>()
val env = System.getenv()
properties["javax.persistence.jdbc.url"] = env["PERSISTENCE_URL"] ?: ""
properties["javax.persistence.jdbc.user"] = env["PERSISTENCE_USER"] ?: ""
properties["javax.persistence.jdbc.password"] = env["PERSISTENCE_PASSWORD"] ?: ""
val factory = Persistence.createEntityManagerFactory("opendc-simulator", properties)
val timeout = 10000L
val threads = 4
val executorService = Executors.newFixedThreadPool(threads)
val experiments = JpaExperimentManager(factory)
val kernel = OmegaKernelFactory
logger.info { "Waiting for enqueued experiments..." }
while (true) {
experiments.poll()?.let { experiment ->
logger.info { "Found experiment. Submitting for simulation now..." }
executorService.submit {
experiment.use { it.run(kernel, timeout) }
}
}
Thread.sleep(500)
}
}
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