import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.io.Reader;

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

public class ScriptRunner {
  class ExecuteScript implements Runnable {
    private String fileName;
    public ExecuteScript(String fileName) {
      this.fileName = fileName;
    }
    public void run() {
      try {
        execute(fileName);
      } catch (IOException e) {
        e.printStackTrace();
      }
    }
    private void execute(String fileName) throws IOException {
      FileReader reader = null;
      try {
        reader = new FileReader(fileName);
        runScript(reader);
      } catch (FileNotFoundException e) {
        e.printStackTrace();
      } finally {
        if (reader != null) {
          reader.close();
        }
      }
    }
    private void runScript(Reader reader) {
      ScriptEngineManager manager = new ScriptEngineManager();
      ScriptEngine engine = manager.getEngineByName("FX");
      if (engine != null) {
        try {
          engine.eval(reader);
        } catch (ScriptException e) {
          e.printStackTrace();
        }
      }
    }
  }
  public static void main(String[] args) {
    String fileName;
    if (args.length == 0) {
      fileName = "SimpleFxSample.fx";
    } else {
      fileName = args[0];
    }
    ScriptRunner runner = new ScriptRunner();
    SwingUtilities.invokeLater(runner.new ExecuteScript(fileName));
  }
}