CODEWITHSUNDEEP
javascriptingkotlin
mojtab23
mojtab23

Reputation: 2675

Can I run kotlin as script with Java Scripting API

I want to run kotlin code as script from java with Java Scripting API similar to this for javascript:

import javax.script.*;
public class EvalScript {
    public static void main(String[] args) throws Exception {
        // create a script engine manager
        ScriptEngineManager factory = new ScriptEngineManager();
        // create a JavaScript engine
        ScriptEngine engine = factory.getEngineByName("JavaScript");
        // evaluate JavaScript code from String
        engine.eval("print('Hello, World')");
    }
}

or with similar APIs like this.

Upvotes: 7

Views: 5648

Answers (2)

Ilya Serbis
Ilya Serbis

Reputation: 22283

Yes, it's possible starting from the Kotlin 1.1: http://kotlinlang.org/docs/reference/whatsnew11.html#javaxscript-support

KEEP-75 has an example of the JSR-223 API call:

val engine = ScriptEngineManager().getEngineByExtension("main.kts")!!
engine.eval("""
@file:DependsOn("junit:junit:4.11")

org.junit.Assert.assertTrue(true)

println("Hello, World!")
""")

Configuration below adds Kotlin scripts engine to my Kotlin 1.2 project:

        <dependency>
            <groupId>org.jetbrains.kotlin</groupId>
            <artifactId>kotlin-script-runtime</artifactId>
            <version>${kotlin.version}</version>
        </dependency>
        <dependency>
            <groupId>org.jetbrains.kotlin</groupId>
            <artifactId>kotlin-script-util</artifactId>
            <version>${kotlin.version}</version>
        </dependency>

Update: Starting from Kotlin 1.2.20 kotlin-script-util doesn't depend on kotlin-compiler explicitly (see https://youtrack.jetbrains.com/issue/KT-17561). So one more module should be provided (as of the build file in example project):

        <dependency>
            <groupId>org.jetbrains.kotlin</groupId>
            <artifactId>kotlin-compiler-embeddable</artifactId>
            <version>${kotlin.version}</version>
        </dependency>

Upvotes: 10

yole
yole

Reputation: 97148

Kotlin support for the Java Scripting API is planned, but as of version 1.0.3 is not available yet. For the mean time, you can try to use an existing open-source implementation.

Upvotes: 4

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