package org.kodejava.example.script;
import javax.script.ScriptEngineManager;
import javax.script.ScriptEngineFactory;
import java.util.List;
public class GetSupportedScriptingEngine {
public static void main(String[] args) {
// Creating an instance of ScriptEngineManager an get the list
// of available ScriptEngineFactory.
ScriptEngineManager manager = new ScriptEngineManager();
List<ScriptEngineFactory> factories = manager.getEngineFactories();
for (ScriptEngineFactory factory : factories) {
System.out.println(
"EngineName = " + factory.getEngineName());
System.out.println(
"EngineVersion = " + factory.getEngineVersion());
System.out.println(
"LanguageName = " + factory.getLanguageName());
System.out.println(
"LanguageVersion = " + factory.getLanguageVersion());
System.out.println(
"Extensions = " + factory.getExtensions());
List<String> names = factory.getNames();
for (String name : names) {
System.out.println("Engine Alias = " + name);
}
}
}
}
The code above produces the following information.
EngineName = Mozilla Rhino
EngineVersion = 1.7 release 3 PRERELEASE
LanguageName = ECMAScript
LanguageVersion = 1.8
Extensions = [js]
Engine Alias = js
Engine Alias = rhino
Engine Alias = JavaScript
Engine Alias = javascript
Engine Alias = ECMAScript
Engine Alias = ecmascript
Currently, as you can see in the result of the program above, Mozilla Rhino is the only scripting engine provided in the JDK 6 libraries. You can also see that the factory provides many engine name aliases that help you to obtain an engine for the JavaScript programming language.
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