Hi everyone! I wonder if anybody knows why all my /tmp directory full of kotlin-daemon.2019-01-16.07-43-48-057.02.log files And how to get rid of them System info: linux gradle 4.5.1 kotlin plugin id 'org.jetbrains.kotlin.jvm' version '1.2.60' run via

gradle clean test

I am facing issue with go to declaration (ctr+b) for layout file in Android studio 3.3. It is always open R.java file instead of xml file.it is only happens in kotlin class.it is working for Java class file.

I have a compile error on my project when I use default parameter on a function of Inline Classe (Kotlin 1.3.11)

Hey guys! Is it possible for a coroutine to cancel a potentially infinite loop? I believe it's not, and I can't do it either:

GlobalScope.launch {
  val deferred = GlobalScope.async {
    while (true) {

    }
  }

  val result = withTimeout(100) {
    deferred.await()
  }

  println(result)
}

Nevermind, I solve it in another way by storing just the functions to be used in the coroutine

Anyone able to download intelliJ at the moment? The server seems to be down at the moment (at least from Canada)

hi there!

so Kotlin's smart-casting has played me for a fool 🙂

i need to check if a value is not-null, then assign it to null, else throw an error

so the common way to do this is:

if (n != null) { n = null } else throw Exception

i want to do it the fancy way, the Kotlin way. so I write:

n.takeIf { it != null }?.let { it = null } ?: throw Exception

so, two questions:

1. any way around this?

I like functional programming 🙂

Hello 👋 Can someone help me please? https://stackoverflow.com/q/62124218/13655413

I want to create a Kotlin script that can represent current files structure in JSON or XML code but with some conditions. • I want to my representation to not mention middle empty directories. • I want to only list files ended with 

Activity.*

For example: for this structure

my_project
 -> feature1
  -> src
   -> java
    -> com
     -> directory
      -> MainActivity.kt
      -> MainFragment.kt
 -> feature2
  -> src
   -> java
    -> com
     -> directory
      -> Feature2Activity.kt
      -> Feature2Fragment.kt

Should generate

{
  "my_project": {
    "feature1": {
      "directory": [
        "MainActivity"
      ]
    },
    "feature2": {
      "directory": [
        "Feature2Activity"
      ]
    }
  }
}

I don't have decencies to any Android modules, just Kotlin maybe using FileTreeWalk

I am making kotlin springboot milti module proejct as gradle kotlin DSL script: Then How can I import another sibling module as a dependecy ?

dependencies {
    val swaggerVersion = "2.9.2"
    val hikaricpVersion = "3.3.1"
    val typesafeVersion = "1.4.0"
    val kotlinloggingVersion = "1.7.9"
    val modelMapperVersion = "2.3.7"

    subprojects.forEach {

        if( it.name != "common" ) {
            implementation(project(it.path)) {
                dependencies {
                    implementation(project(":common"))
                }
            }
        } else {
            implementation(project(":common"))
        }
    }

    implementation("com.zaxxer:HikariCP:${hikaricpVersion}")
    implementation("org.springframework.boot:spring-boot-starter-web")
    ::::
}

I trid this but it(internal) don't import common modules as a dependency. settings.gradle.kts

rootProject.name = "gia"
include("common", "internal")

Or maybe I'm looking at it the wrong way.. Basically I'd like to have a hierarchy (like the example Animal) and be able to copy an instance of an implementation without knowing which one it is, considering I'm changing a field that is declared in that interface.

hello! by any chance anyone here wrote a log4j2 Plugin using Kotlin? Basically trying to do something like this

@Plugin(name = "StandardLogLayout", category = Node.CATEGORY, elementType = Layout.ELEMENT_TYPE)
class StandardLogLayout(config: Configuration?, aCharset: Charset?, headerSerializer: Serializer? = null, footerSerializer: Serializer? = null) : AbstractStringLayout(config, aCharset, headerSerializer, footerSerializer) {

    companion object {
        @PluginFactory
        @JvmStatic
        fun createLayout(
            @PluginConfiguration config: Configuration?,
            @PluginAttribute(value = "charset", defaultString = "UTF-8") charset: Charset?
        ): StandardLogLayout = StandardLogLayout(config, charset)

// actual logging logic that auto formats the message
}

and then in my

log4j2.xml

<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="DEBUG">
    <Appenders>
        <Console name="standardLayout" target="SYSTEM_OUT" follow="true">
            <StandardLogLayout/>
        </Console>
    </Appenders>

    <Loggers>
        <Root level="INFO">
            <AppenderRef ref="standardLayout"/>
        </Root>
    </Loggers>
</Configuration>

but unfortunately it doesn’t work. Tried configuring

kapt

with

log4j2-core

as annotation processor but it didn’t work either…. Any help would be appreciated

Kotlin 1.4-M2 Released Time flies, and today we want to present a few more powerful features of Kotlin 1.4 for your preview. Learn what Kotlin 1.4-M2 has in store, try it, and enjoy its features before they are officially released in Kotlin 1.4. … Continue reading →

https://twitter.com/kotlin/status/1268511168748019714 Kotlin 1.4-M2 is released 🎉 with a new portion of features for you to preview: - Improved code sharing in multiplatform projects - New flexible project wizard - Explicit API mode for libraries We look forward to your feedback! https://t.co/5Y4HBDJYvy https://t.co/hXgmDOdUmG Twitter

some backend projects on 1.3.70 where 1.4-M2 halves the build time 🎉 (compared to 1.3.70)

I guess “do your own testing” applies as always, but is there anyone using 1.4-M1 for a backend app in production (or 1.4-M2 if one did such a daring deploy) ? The build time savings are attractive

Hey guys. We are really happy to introduce KorGE Game jam to you. KorGE is a 100% Kotlin game engine which has a full multiplatform apporach leveraging all the best features of Kotlin. Our slack channel is on this server --> #korge . We would be happy if one you skilled coders would join our jam. You can also win prizes from the 600 $ prize pool. If you have any questions: just ask

can I cast something to multiple interfaces? e.g. as Number and Comparable? to pass it along to something that accepts N where N : Number, N : Comparable<N>

if you cast to number you can use it as comparable

unfortunately, number is not comparable by itself

but you could do .doubleValue

Don't know where to ask this but here

Exception in thread "main" java.lang.NoSuchFieldError: burstLimiter
    at mdnet.base.Netty$toServer$1$start$$inlined$apply$lambda$1.<init>(Netty.kt:91)
    at mdnet.base.Netty$toServer$1.start(Netty.kt:89)
    at mdnet.base.Client.runLoop(MangadexClient.java:59)
    at mdnet.base.Client.main(MangadexClient.java:190)

Code (without the anonymous object for BurstLimiter) it works fine:

.childHandler(object : ChannelInitializer<SocketChannel>() {
                        private val counter = ConnectionCounter()
                        private val burstLimiter = object: GlobalTrafficShapingHandler(
                            workerGroup, 1024 * clientSettings.maxBurstRateKibPerSecond, 0, 50) {
                            override fun doAccounting(counter: TrafficCounter) {
                                stats.get().bytesSent.getAndAdd(counter.cumulativeWrittenBytes())
                            }
                        }

                        public override fun initChannel(ch: SocketChannel) {

                            ch.pipeline().addLast("ssl", OptionalSslHandler(sslContext))

                            ch.pipeline().addLast("codec", HttpServerCodec())
                            ch.pipeline().addLast("counter", counter)
                            ch.pipeline().addLast("aggregator", HttpObjectAggregator(65536))
                            ch.pipeline().addLast("burstLimiter", this.burstLimiter)
                            ch.pipeline().addLast("streamer", ChunkedWriteHandler())
                            ch.pipeline().addLast("handler", Http4kChannelHandler(httpHandler))
                        }
                    })