Using Nashorn Script Engine in AEM

Avatar

Avatar

Nitin_Tyagi

Avatar

Nitin_Tyagi

Nitin_Tyagi

15-10-2015

Hi All,

I am currently working on  AEM SP2 with JDK8 & trying to build a Handlebar Script Engine in AEM. For the Handlebar Compilation & processing we were loading the Nashorn Script Engine inside AEM & the Nashorn will be used to evaluate handlebars.js & other processing. I am loading the Nashorn engine as per instructions on http://www.oracle.com/technetwork/articles/java/jf14-nashorn-2126515.html with below lines of code. But the nashorn Engine is not initializing.

ScriptEngineManager engineManager = new ScriptEngineManager(); ScriptEngine engine = engineManager.getEngineByName("nashorn");

Another option which I tries was to Initialize  ScriptEngineManager via OSGi @Reference Notation. When I do that It gives me all the Registered Script Engines in AEM available @ http://localhost:4502/system/console/status-slingscripting , but again Nashorn isn't among them.

Can anyone help me how to load Nashorn Engine inside AEM or do I have to do a Custom Implementation OF Nashorn Script Engine in AEM?

Thanks

Nitin

Accepted Solutions (1)

Accepted Solutions (1)

Avatar

Avatar

justin_at_adobe

Employee

Avatar

justin_at_adobe

Employee

justin_at_adobe
Employee

15-10-2015

From within AEM, the available ScriptEngineManager does not pick up ScriptEngines (like Nashorn) which are registered outside the OSGi framework. You will need to register Nashorn with Sling's ScriptEngineManager. Better yet would be if Nashorn was available as an OSGi bundle, in which case it could just be dropped in. This is the case, for example, with Groovy.

Answers (3)

Answers (3)

Avatar

Avatar

Nitin_Tyagi

Avatar

Nitin_Tyagi

Nitin_Tyagi

15-10-2015

Thanks for your response Peter. Yes It's not yet added in the AEM's list of Script Engines. That's the reason I am trying to load it directly from JDK considering nashorn.jar is already in the classpath.

ScriptEngineManager engineManager = new ScriptEngineManager();

ScriptEngine engine = engineManager.getEngineByName("nashorn");

It looks like I will have to create a new NashornScriptEngine in AEM using nashorn.jar.

Thanks

Nitin

Avatar

Avatar

PuzanovsP

MVP

Avatar

PuzanovsP

MVP

PuzanovsP
MVP

15-10-2015

Hey Nitin,

Current AEM6 runtime is Rhino and it's implementation can be found here:

org.apache.sling.scripting.javascript.RhinoJavaScriptEngine

As per my current understanding Nashorn is not supported in AEM 6, even so it's added as default engine in JDK 8.

Peter

Avatar

Avatar

anisazula

Avatar

anisazula

anisazula

10-09-2020

this is nice psot thanks for sharing this ----We will provide any antivirus installation error solution you can use this support service team members and find a solution to complex issues related to antivirus.

https://garminexpress.global/
http://rand-mcnally-gps-update.com/
http://belkin-setup.com/
http://mywifi-extt.com/