コード例 #1
1
  static void nashornCompiledScript(String code) throws ScriptException, NoSuchMethodException {
    ScriptEngineManager factory = new ScriptEngineManager();
    ScriptEngine engine = factory.getEngineByName("nashorn");

    CompiledScript compiled = ((Compilable) engine).compile(code);

    Object result = null;
    ScriptContext context = new SimpleScriptContext();
    Bindings engineScope = context.getBindings(ScriptContext.ENGINE_SCOPE);
    long total = 0;
    for (int i = 0; i < RUNS; ++i) {
      long start = System.nanoTime();
      for (int j = 0; j < BATCH; ++j) {
        engineScope.put("value", "12345678");
        result = compiled.eval(context);
      }
      long stop = System.nanoTime();
      System.out.println(
          "Run "
              + (i * BATCH + 1)
              + "-"
              + ((i + 1) * BATCH)
              + ": "
              + Math.round((stop - start) / BATCH / 1000)
              + " us");
      total += (stop - start);
    }

    System.out.println("Average run: " + Math.round(total / RUNS / BATCH / 1000) + " us");
    System.out.println(
        "Data is " + ((Invocable) engine).invokeMethod(result, "toString").toString());
  }
コード例 #2
0
  static void nashornCompiledScriptReturningFunction(String code, String library)
      throws ScriptException, NoSuchMethodException {
    ScriptEngineManager factory = new ScriptEngineManager();
    ScriptEngine engine = factory.getEngineByName("nashorn");

    ScriptContext libraryContext = new SimpleScriptContext();
    ScriptContext privateContext = new SimpleScriptContext();

    ScriptObjectMirror errorFunc =
        (ScriptObjectMirror) ((Compilable) engine).compile(library).eval(libraryContext);
    ScriptObjectMirror func =
        (ScriptObjectMirror) ((Compilable) engine).compile(code).eval(privateContext);
    Object result = null;

    long total = 0;
    for (int i = 0; i < RUNS; ++i) {
      long start = System.nanoTime();
      for (int j = 0; j < BATCH; ++j) {
        result = func.call(null, "12345678", errorFunc);
      }
      long stop = System.nanoTime();
      System.out.println(
          "Run "
              + (i * BATCH + 1)
              + "-"
              + ((i + 1) * BATCH)
              + ": "
              + Math.round((stop - start) / BATCH / 1000)
              + " us");
      total += (stop - start);
    }

    System.out.println("Average run: " + Math.round(total / RUNS / BATCH / 1000) + " us");
    System.out.println("Data is " + result.toString());
  }
コード例 #3
0
  static void nashornInvokeMethod(String code) throws ScriptException, NoSuchMethodException {
    ScriptEngineManager factory = new ScriptEngineManager();
    ScriptEngine engine = factory.getEngineByName("nashorn");

    engine.eval(code);
    Invocable inv = (Invocable) engine;
    JSObject propertiesDict = (JSObject) engine.get("properties");

    Object result = null;
    Object property;
    long total = 0;
    for (int i = 0; i < RUNS; ++i) {
      long start = System.nanoTime();
      for (int j = 0; j < BATCH; ++j) {
        property = propertiesDict.getMember("ssn");
        result = inv.invokeMethod(property, "clean", "12345678");
      }
      long stop = System.nanoTime();
      System.out.println(
          "Run "
              + (i * BATCH + 1)
              + "-"
              + ((i + 1) * BATCH)
              + ": "
              + Math.round((stop - start) / BATCH / 1000)
              + " us");
      total += (stop - start);
    }
    System.out.println("Average run: " + Math.round(total / RUNS / BATCH / 1000) + " us");
    System.out.println(
        "Data is " + ((Invocable) engine).invokeMethod(result, "toString").toString());
  }