com.btr.proxy.selector.pac.ScriptAvailability Maven / Gradle / Ivy
package com.btr.proxy.selector.pac;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
/****************************************************************************
* Utility to check availablility of javax.script
*
* @author Bernd Rosstauscher ([email protected]) Copyright 2009
***************************************************************************/
abstract class ScriptAvailability {
/*************************************************************************
* Checks whether javax.script is available or not. Completely done per
* Reflection to allow compilation under Java 1.5
*
* @return true if javax.script is available; false otherwise
************************************************************************/
public static boolean isJavaxScriptingAvailable() {
Object engine = null;
try {
Class managerClass = Class.forName("javax.script.ScriptEngineManager");
Method m = managerClass.getMethod("getEngineByMimeType", String.class);
engine = m.invoke(managerClass.newInstance(), "text/javascript");
} catch (ClassNotFoundException | NoSuchMethodException
| IllegalAccessException | InvocationTargetException
| InstantiationException e) {
return false;
}
return engine != null;
}
/*************************************************************************
* Constructor
************************************************************************/
ScriptAvailability() {
super();
}
}