Examples with SimpleScriptContext javax.script.SimpleScriptContext used on opensource projects

Example 36 with SimpleScriptContext

use of javax.script.SimpleScriptContext in project tomee by apache.

the class OpenEJBScripter method evaluate.

public Object evaluate(final String language, final String script, final ScriptContext context) throws ScriptException {
    if (!ENGINE_FACTORIES.containsKey(language)) {
        throw new IllegalArgumentException("can't find factory for language " + language + ". You probably need to add the jar to openejb libs.");
    }
    ScriptContext executionContext = context;
    if (executionContext == null) {
        executionContext = new SimpleScriptContext();
    }
    // we bind local variables (per execution) every time we execute a script
    bindLocal(executionContext);
    final ScriptEngine engine = engine(language);
    return engine.eval(script, executionContext);
}

Example 37 with SimpleScriptContext

use of javax.script.SimpleScriptContext in project proxyee-down by monkeyWie.

the class ExtensionUtil method invoke.

/**
 * 运行一个js方法
 */
public static Object invoke(ExtensionInfo extensionInfo, Event event, Object param, boolean async) throws NoSuchMethodException, ScriptException, FileNotFoundException, InterruptedException {
    // 初始化js引擎
    ScriptEngine engine = ExtensionUtil.buildExtensionRuntimeEngine(extensionInfo);
    Invocable invocable = (Invocable) engine;
    // 执行resolve方法
    Object result = invocable.invokeFunction(StringUtils.isEmpty(event.getMethod()) ? event.getOn() : event.getMethod(), param);
    // 结果为null或者异步调用直接返回
    if (result == null || async) {
        return result;
    }
    final Object[] ret = { null };
    // 判断是不是返回Promise对象
    ScriptContext ctx = new SimpleScriptContext();
    ctx.setAttribute("result", result, ScriptContext.ENGINE_SCOPE);
    boolean isPromise = (boolean) engine.eval("!!result&&typeof result=='object'&&typeof result.then=='function'", ctx);
    if (isPromise) {
        // 如果是返回的Promise则等待执行完成
        CountDownLatch countDownLatch = new CountDownLatch(1);
        invocable.invokeMethod(result, "then", (Function) o -> {
            try {
                ret[0] = o;
            } catch (Exception e) {
                LOGGER.error("An exception occurred while resolve()", e);
            } finally {
                countDownLatch.countDown();
            }
            return null;
        });
        invocable.invokeMethod(result, "catch", (Function) o -> {
            countDownLatch.countDown();
            return null;
        });
        // 等待解析完成
        countDownLatch.await();
    } else {
        ret[0] = result;
    }
    return ret[0];
}

Example 38 with SimpleScriptContext

use of javax.script.SimpleScriptContext in project proxyee-down by monkeyWie.

the class JavascriptEngine method main.

public static void main(String[] args) throws ScriptException, NoSuchMethodException, JsonProcessingException, InterruptedException {
    ScriptEngine engine = buildEngine();
    Invocable invocable = (Invocable) engine;
    engine.eval("load('E:/study/extensions/bilibili-helper/dist/hook.js')");
    HttpRequestForm requestForm = new HttpRequestForm();
    requestForm.setUrl("https://www.bilibili.com/video/av34765642");
    Object result = invocable.invokeFunction("error");
    ScriptContext ctx = new SimpleScriptContext();
    ctx.setAttribute("result", result, ScriptContext.ENGINE_SCOPE);
    System.out.println(engine.eval("!!result&&typeof result=='object'&&typeof result.then=='function'", ctx));
}

Example 39 with SimpleScriptContext

use of javax.script.SimpleScriptContext in project keycloak by keycloak.

the class JSPolicyProvider method evaluate.

@Override
public void evaluate(Evaluation evaluation) {
    Policy policy = evaluation.getPolicy();
    AuthorizationProvider authorization = evaluation.getAuthorizationProvider();
    EvaluatableScriptAdapter adapter = evaluatableScript.apply(authorization, policy);
    try {
        SimpleScriptContext context = new SimpleScriptContext();
        context.setAttribute("$evaluation", evaluation, ScriptContext.ENGINE_SCOPE);
        adapter.eval(context);
    } catch (Exception e) {
        throw new RuntimeException("Error evaluating JS Policy [" + policy.getName() + "].", e);
    }
}

Example 40 with SimpleScriptContext

use of javax.script.SimpleScriptContext in project OpenAM by OpenRock.

the class StandardScriptEvaluator method buildScriptContext.

/**
     * Build the script context for evaluating a script, using the given set of variables for the engine scope.
     *
     * @param engineScope the variable bindings to use for the engine scope.
     * @return the configured script context.
     */
private ScriptContext buildScriptContext(Bindings engineScope) {
    final ScriptContext context = new SimpleScriptContext();
    context.setBindings(engineScope, ScriptContext.ENGINE_SCOPE);
    context.setBindings(scriptEngineManager.getBindings(), ScriptContext.GLOBAL_SCOPE);
    // Replace reader/writer instances with null versions
    context.setReader(null);
    // Groovy expects these writers to be non-null, so use the Groovy-supplied NullWriter instance
    context.setWriter(NullWriter.DEFAULT);
    context.setErrorWriter(NullWriter.DEFAULT);
    return context;
}