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Exception handling with logging in Kotlin coroutines
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| plugins { | |
| id "org.jetbrains.kotlin.jvm" version "1.7.22" | |
| id "application" | |
| } | |
| sourceSets { | |
| main { | |
| kotlin { | |
| srcDir "." | |
| include "*.kt" | |
| } | |
| resources { | |
| srcDir "." | |
| include "*.xml" | |
| } | |
| } | |
| } | |
| repositories { | |
| mavenCentral() | |
| } | |
| dependencies { | |
| implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.6.4") | |
| implementation("org.jetbrains.kotlinx:kotlinx-coroutines-slf4j:1.6.4") | |
| implementation("io.github.microutils:kotlin-logging:3.0.4") | |
| implementation("ch.qos.logback:logback-classic:1.3.5") | |
| } | |
| application { | |
| mainClass = "CoroutineExceptionHandlerLoggingKt" | |
| } |
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| import kotlinx.coroutines.CoroutineExceptionHandler | |
| import kotlinx.coroutines.CoroutineScope | |
| import kotlinx.coroutines.Dispatchers | |
| import kotlinx.coroutines.Job | |
| import kotlinx.coroutines.SupervisorJob | |
| import kotlinx.coroutines.delay | |
| import kotlinx.coroutines.launch | |
| import kotlinx.coroutines.runBlocking | |
| import kotlinx.coroutines.slf4j.MDCContext | |
| import mu.KotlinLogging | |
| import org.slf4j.MDC | |
| private val logger = KotlinLogging.logger {} | |
| fun main() = runBlocking { | |
| var handler: CoroutineExceptionHandler = CoroutineExceptionHandler { context, exception -> | |
| logger.error(exception) { "Exception-logging" } | |
| } | |
| val scope: CoroutineScope = CoroutineScope(SupervisorJob() + Dispatchers.IO + handler) | |
| val jobs: MutableList<Job> = mutableListOf() | |
| for (i in 0..9) { | |
| MDC.put("foo", i.toString()) | |
| jobs.add(scope.launch(MDCContext()) { | |
| if (i < 5) { | |
| delay(100) | |
| } else { | |
| delay(200) | |
| } | |
| println("Print[${i}]") | |
| throw RuntimeException("RuntimeException[${i}]") | |
| }) | |
| } | |
| for (job in jobs) { | |
| job.join() | |
| } | |
| } |
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| <?xml version="1.0" encoding="UTF-8"?> | |
| <!DOCTYPE logback> | |
| <configuration> | |
| <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender"> | |
| <encoder> | |
| <pattern>%n[%X{foo}] %m%n</pattern> | |
| </encoder> | |
| </appender> | |
| <root> | |
| <appender-ref ref="STDOUT" /> | |
| </root> | |
| </configuration> |
Author
dmikurube
commented
Feb 13, 2023
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