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/*
* Copyright (c) 2024 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.experiments.base.experiment
import kotlinx.serialization.encodeToString
import kotlinx.serialization.json.Json
import org.opendc.experiments.base.experiment.specs.ScenarioSpec
import java.io.File
/**
* A writer for writing scenarios to a file.
* @param jsonText The JSON text to write to the file, which is constantly updated during the writing process.
* @param json The JSON object used to encode the scenario specification.
*/
public class ExperimentWriter {
private var jsonText = "["
private val json = Json { prettyPrint = true }
/**
* Write the given [scenariosSpec] to the given [file].
*/
public fun write(
scenarioSpec: ScenarioSpec,
file: File,
) {
openArray(file)
val jsonString = json.encodeToString(scenarioSpec) + ","
jsonText += jsonString + "\n"
file.writeText(jsonText)
closeArray(file)
}
/**
* Delete the last character of the file.
*/
private fun openArray(file: File) {
val text = file.readText()
file.writeText(text.dropLast(0))
}
/**
* Add the closing bracket to the file.
*/
private fun closeArray(file: File) {
file.appendText("]")
}
}
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