JavaScriptUtils.java Source code

Introduction

Here is the source code for JavaScriptUtils.java

Source

import static java.lang.annotation.ElementType.FIELD;
import static java.lang.annotation.ElementType.METHOD;
import static java.lang.annotation.RetentionPolicy.RUNTIME;

import java.lang.annotation.Retention;
import java.lang.annotation.Target;
import java.lang.reflect.Method;

import javax.script.ScriptEngine;
import javax.script.ScriptEngineManager;
import javax.script.ScriptException;

public class JavaScriptUtils {

    @Target({ METHOD, FIELD })
    @Retention(RUNTIME)
    @interface JavaScript {
        String value();
    }

    public static void eval(Method method) throws ScriptException {
        JavaScript script = method.getAnnotation(JavaScript.class);
        eval(script);
    }

    public static void eval(JavaScript script) throws ScriptException {
        ScriptEngineManager manager = new ScriptEngineManager();
        ScriptEngine engine = manager.getEngineByName("js");
        engine.eval(script.value());
    }
}