it.unibo.collektive.compiler.logging.SLF4JMessageCollector.kt Maven / Gradle / Ivy

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DSL for Aggregate Computing in Kotlin

There is a newer version: 11.2.0

package it.unibo.collektive.compiler.logging

import org.jetbrains.kotlin.cli.common.messages.CompilerMessageSeverity
import org.jetbrains.kotlin.cli.common.messages.CompilerMessageSourceLocation
import org.jetbrains.kotlin.cli.common.messages.MessageCollector
import org.slf4j.Logger
import org.slf4j.LoggerFactory

/**
 * A message collector that logs messages using a SLF4J [logger].
 */
class SLF4JMessageCollector(val logger: Logger) : MessageCollector {

    override fun clear() = Unit

    override fun hasErrors(): Boolean = false

    override fun report(
        severity: CompilerMessageSeverity,
        message: String,
        location: CompilerMessageSourceLocation?,
    ) {
        val logOperation: (String, Array) -> Unit = when (severity) {
            CompilerMessageSeverity.ERROR, CompilerMessageSeverity.EXCEPTION -> logger::error
            CompilerMessageSeverity.STRONG_WARNING -> logger::warn
            CompilerMessageSeverity.WARNING -> logger::warn
            CompilerMessageSeverity.OUTPUT, CompilerMessageSeverity.INFO -> logger::info
            CompilerMessageSeverity.LOGGING -> logger::debug
        }
        when (location) {
            null -> logOperation("{} {}", arrayOf(severity, message))
            else -> logOperation("{} {} at {}", arrayOf(severity, message, location))
        }
    }

    /**
     * Global defaults.
     */
    companion object {

        /**
         * A default message collector that logs messages to the "Collektive Compiler" SLF4J logger.
         */
        val default = SLF4JMessageCollector(LoggerFactory.getLogger("Collektive Compiler"))
    }
}