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/*
* Copyright (c) 2022 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 org.opendc.web.runner.internal
import org.opendc.web.client.runner.OpenDCRunnerClient
import org.opendc.web.proto.JobState
import org.opendc.web.proto.runner.Job
import org.opendc.web.runner.JobManager
/**
* Default implementation of [JobManager] that uses the OpenDC client to receive jobs.
*/
internal class JobManagerImpl(private val client: OpenDCRunnerClient) : JobManager {
override fun findNext(): Job? {
return client.jobs.queryPending().firstOrNull()
}
override fun claim(id: Long): Boolean {
return try {
client.jobs.update(id, Job.Update(JobState.CLAIMED, 0))
true
} catch (e: IllegalStateException) {
false
}
}
override fun heartbeat(
id: Long,
runtime: Int,
): Boolean {
val res = client.jobs.update(id, Job.Update(JobState.RUNNING, runtime))
return res?.state != JobState.FAILED
}
override fun fail(
id: Long,
runtime: Int,
) {
client.jobs.update(id, Job.Update(JobState.FAILED, runtime))
}
override fun finish(
id: Long,
runtime: Int,
results: Map<String, Any>,
) {
client.jobs.update(id, Job.Update(JobState.FINISHED, runtime))
}
}
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