## page was renamed from rhino
= rhino =
Rhino is an open-source implementation of JavaScript written entirely in Java. 

It is typically embedded into Java applications to provide scripting to end users. 

It is embedded in J2SE 6 as the default Java scripting engine.

[[https://developer.mozilla.org/en-US/docs/Rhino]]

== Invoke JavaScript from Java example ==
{{{#!highlight javascript
// /tmp/test.js
function isOdd(number) { 
  if(number % 2){
    return false;
  }
  else{
  return  true;  
  }
};
}}}

{{{#!highlight java
import javax.script.Invocable;
import javax.script.ScriptEngine;
import javax.script.ScriptEngineManager;
import javax.script.ScriptException;
import java.io.FileNotFoundException;
import java.io.FileReader;

public class JSTest {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		ScriptEngineManager sem = new ScriptEngineManager();
		ScriptEngine engine = sem.getEngineByName("ECMAScript");
		FileReader fr = null;
		String path = "/tmp/test.js";
		try {
			fr = new FileReader(path);
		} catch (FileNotFoundException e) {
			System.out.println(String.format("File %s not found", path));
		}

		if (fr != null) {
			try {
				engine.eval(fr);
				if (engine instanceof Invocable) {
					Invocable iv = (Invocable) engine;

					try {
						System.out.println(iv.invokeFunction("isOdd", new Integer(4)));
						System.out.println(iv.invokeFunction("isOdd", new Integer(5)));
					} catch (NoSuchMethodException ex) {
						ex.printStackTrace();
					} catch (ScriptException ex) {
						ex.printStackTrace();
					}
				}
			} catch (ScriptException ex) {
				ex.printStackTrace();
			}
		}
	}

}

}}}