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

Example 31 with Invocable

use of javax.script.Invocable 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 32 with Invocable

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

the class JavascriptEngine method buildEngine.

public static ScriptEngine buildEngine() throws ScriptException, NoSuchMethodException {
    NashornScriptEngineFactory factory = new NashornScriptEngineFactory();
    ScriptEngine engine = factory.getScriptEngine(new SafeClassFilter());
    Window window = new Window();
    Object global = engine.eval("this");
    Object jsObject = engine.eval("Object");
    Invocable invocable = (Invocable) engine;
    invocable.invokeMethod(jsObject, "bindProperties", global, window);
    engine.eval("var window = this");
    return engine;
}

Example 33 with Invocable

use of javax.script.Invocable in project rivescript-java by aichaos.

the class Jsr223ScriptingHandler method call.

/**
 * {@inheritDoc}
 */
@Override
public String call(RiveScript rs, String name, String[] fields) {
    String result = null;
    if (scriptEngine == null) {
        logger.warn("Cannot call macro '{}' as no script engine was found for '{}'", name, engineName);
    } else {
        long startTime = System.currentTimeMillis();
        // Invoke the function in the script engine.
        try {
            Invocable invocable = (Invocable) scriptEngine;
            Object value = invocable.invokeFunction(resolveFunctionName(name), rs, fields);
            if (value != null) {
                result = value.toString();
            }
            if (logger.isDebugEnabled()) {
                long elapsedTime = System.currentTimeMillis() - startTime;
                if (result == null) {
                    logger.debug("Returned null from macro '{}' in {} ms", name, elapsedTime);
                } else {
                    logger.debug("Returned '{}' from macro '{}' in {} ms", result, name, elapsedTime);
                }
            }
        } catch (ScriptException e) {
            logger.error("Error invoking function for macro '{}'", name, e);
        } catch (NoSuchMethodException e) {
            logger.error("Error invoking function for macro '{}'", name, e);
        }
    }
    return result;
}

Example 34 with Invocable

use of javax.script.Invocable in project spring-framework by spring-projects.

the class ScriptTemplateView method renderMergedOutputModel.

@Override
protected void renderMergedOutputModel(Map<String, Object> model, HttpServletRequest request, HttpServletResponse response) throws Exception {
    try {
        ScriptEngine engine = getEngine();
        Invocable invocable = (Invocable) engine;
        String url = getUrl();
        String template = getTemplate(url);
        Function<String, String> templateLoader = path -> {
            try {
                return getTemplate(path);
            } catch (IOException ex) {
                throw new IllegalStateException(ex);
            }
        };
        RenderingContext context = new RenderingContext(this.getApplicationContext(), this.locale, templateLoader, url);
        Object html;
        if (this.renderObject != null) {
            Object thiz = engine.eval(this.renderObject);
            html = invocable.invokeMethod(thiz, this.renderFunction, template, model, context);
        } else {
            html = invocable.invokeFunction(this.renderFunction, template, model, context);
        }
        response.getWriter().write(String.valueOf(html));
    } catch (ScriptException ex) {
        throw new ServletException("Failed to render script template", new StandardScriptEvalException(ex));
    }
}

Example 35 with Invocable

use of javax.script.Invocable in project lucene-solr by apache.

the class StatelessScriptUpdateProcessorFactory method initEngines.

//================================================ Helper Methods ==================================================
/**
   * Initializes a list of script engines - an engine per script file.
   *
   * @param req The solr request.
   * @param rsp The solr response
   * @return The list of initialized script engines.
   */
private List<EngineInfo> initEngines(SolrQueryRequest req, SolrQueryResponse rsp) throws SolrException {
    List<EngineInfo> scriptEngines = new ArrayList<>();
    ScriptEngineManager scriptEngineManager = new ScriptEngineManager(resourceLoader.getClassLoader());
    scriptEngineManager.put("logger", log);
    scriptEngineManager.put("req", req);
    scriptEngineManager.put("rsp", rsp);
    if (params != null) {
        scriptEngineManager.put("params", params);
    }
    for (ScriptFile scriptFile : scriptFiles) {
        ScriptEngine engine = null;
        if (null != engineName) {
            engine = scriptEngineManager.getEngineByName(engineName);
            if (engine == null) {
                String details = getSupportedEngines(scriptEngineManager, false);
                throw new SolrException(SolrException.ErrorCode.SERVER_ERROR, "No ScriptEngine found by name: " + engineName + (null != details ? " -- supported names: " + details : ""));
            }
        } else {
            engine = scriptEngineManager.getEngineByExtension(scriptFile.getExtension());
            if (engine == null) {
                String details = getSupportedEngines(scriptEngineManager, true);
                throw new SolrException(SolrException.ErrorCode.SERVER_ERROR, "No ScriptEngine found by file extension: " + scriptFile.getFileName() + (null != details ? " -- supported extensions: " + details : ""));
            }
        }
        if (!(engine instanceof Invocable)) {
            String msg = "Engine " + ((null != engineName) ? engineName : ("for script " + scriptFile.getFileName())) + " does not support function invocation (via Invocable): " + engine.getClass().toString() + " (" + engine.getFactory().getEngineName() + ")";
            log.error(msg);
            throw new SolrException(SolrException.ErrorCode.SERVER_ERROR, msg);
        }
        if (scriptEngineCustomizer != null) {
            scriptEngineCustomizer.customize(engine);
        }
        scriptEngines.add(new EngineInfo((Invocable) engine, scriptFile));
        try {
            Reader scriptSrc = scriptFile.openReader(resourceLoader);
            try {
                engine.eval(scriptSrc);
            } catch (ScriptException e) {
                throw new SolrException(SolrException.ErrorCode.SERVER_ERROR, "Unable to evaluate script: " + scriptFile.getFileName(), e);
            } finally {
                IOUtils.closeQuietly(scriptSrc);
            }
        } catch (IOException ioe) {
            throw new SolrException(SolrException.ErrorCode.SERVER_ERROR, "Unable to evaluate script: " + scriptFile.getFileName(), ioe);
        }
    }
    return scriptEngines;
}