Example usage for javax.script ScriptEngineManager getEngineByName

List of usage examples for javax.script ScriptEngineManager getEngineByName

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Introduction

In this page you can find the example usage for javax.script ScriptEngineManager getEngineByName.

Prototype

public ScriptEngine getEngineByName(String shortName)

Source Link

Document

Looks up and creates a ScriptEngine for a given name.

Usage

From source file:io.stallion.tools.ScriptExecBase.java

public void executeJavascript(String source, URL url, String scriptPath, String folder, List<String> args,
        String plugin) throws Exception {
    ScriptEngine scriptEngine = null;
    if (plugin.equals("js") || plugin.equals("stallion")) {
        JsPluginEngine pluginEngine = PluginRegistry.instance().getEngine("main.js");
        if (pluginEngine != null) {
            scriptEngine = pluginEngine.getScriptEngine();
        }/*from   ww  w.  j  av  a 2  s  .com*/
    } else if (!empty(plugin)) {
        JsPluginEngine pluginEngine = PluginRegistry.instance().getEngine(plugin);
        if (pluginEngine != null) {
            scriptEngine = pluginEngine.getScriptEngine();
        }
    }
    if (scriptEngine == null) {
        ScriptEngineManager scriptEngineManager = new ScriptEngineManager();
        scriptEngine = scriptEngineManager.getEngineByName("nashorn");
        scriptEngine.eval(IOUtils.toString(getClass().getResource("/jslib/jvm-npm.js"), UTF8));
        scriptEngine.eval(IOUtils.toString(getClass().getResource("/jslib/stallion_shared.js"), UTF8));
        String nodePath = folder + "/node_modules";
        scriptEngine.eval("require.NODE_PATH = \"" + nodePath + "\"");
        scriptEngine.put("myContext",
                new SandboxedContext(plugin, Sandbox.allPermissions(), new JsPluginSettings()));
    }
    if (true || newCommandOptions().isDevMode()) {
        Scanner in = new Scanner(System.in);
        while (true) {
            source = IOUtils.toString(url, UTF8);
            try {
                scriptEngine.eval("load("
                        + JSON.stringify(map(val("script", source), val("name", url.toString()))) + ");");
                //scriptEngine.eval(IOUtils.)
            } catch (Exception e) {
                ExceptionUtils.printRootCauseStackTrace(e);
            } finally {

            }
            System.out.println("Hit enter to re-run the script. Type quit and hit enter to stop.");
            String line = in.nextLine().trim();
            if (empty(line)) {
                continue;
            } else {
                break;
            }
        }
    } else {
        scriptEngine.eval(source);
    }

}

From source file:mrf.Graficar.java

private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton1ActionPerformed
    // TODO add your handling code here:
    ScriptEngineManager manager = new ScriptEngineManager();
    ScriptEngine engine = manager.getEngineByName("js");
    ArrayList<Integer> Datosx = new ArrayList<Integer>();
    ArrayList<Double> Datosy = new ArrayList<Double>();
    int in = Integer.parseInt(jTextField2.getText());
    int sup = Integer.parseInt(jTextField3.getText());
    try {//from   www  .  j ava  2  s .c  om
        XYSeries series = new XYSeries("");
        int inferior = in, superior = sup;
        while (inferior <= superior) {
            Datosx.add(inferior);
            engine.put("X", inferior);
            String a = jTextField1.getText();
            Object operation = engine.eval(a);
            Datosy.add(Double.parseDouble("" + operation));
            jTextArea1.append("Parejas ordenadas " + inferior + ":" + operation + "\n");
            series.add(inferior, Double.parseDouble("" + operation));
            inferior++;
        }

        XYSeriesCollection dataset = new XYSeriesCollection();
        dataset.addSeries(series);

        JFreeChart chart = ChartFactory.createXYLineChart("Grafica del polinomio ingresado", // Ttulo
                "Eje x", // Etiqueta Coordenada X
                "Eje y", // Etiqueta Coordenada Y
                dataset, // Datos
                PlotOrientation.VERTICAL, true, // Muestra la leyenda de los productos (Producto A)              
                false, false);

        // Mostramos la grafica en pantalla
        ChartFrame frame = new ChartFrame("GRAFICA POLINOMIO", chart);
        frame.pack();
        frame.setVisible(true);

    } catch (ScriptException e) {
        e.printStackTrace();
    }

}

From source file:Engine.Lua.PlayerLua.java

public PlayerLua(String luaFile) {
    ScriptEngineManager sem = new ScriptEngineManager();
    ScriptEngine scriptEngine = sem.getEngineByName("luaj");
    ClassLoader classloader = Thread.currentThread().getContextClassLoader();
    InputStream is = classloader.getResourceAsStream("Scripts/" + luaFile);
    InputStreamReader isr = new InputStreamReader(is);
    CompiledScript script;/*from w  w w . j  a  v a 2s .com*/
    try {
        script = ((Compilable) scriptEngine).compile(isr);
        isr.close();
        is.close();
        sb = new SimpleBindings();
        script.eval(sb); // Put the Lua functions into the sb environment
    } catch (ScriptException ex) {
        Logger.getLogger(PlayerLua.class.getName()).log(Level.SEVERE, null, ex);
    } catch (IOException ex) {
        Logger.getLogger(PlayerLua.class.getName()).log(Level.SEVERE, null, ex);
    }
}

From source file:org.jumpmind.metl.core.runtime.component.Transformer.java

@Override
public void handle(Message inputMessage, ISendMessageCallback callback, boolean unitOfWorkBoundaryReached) {
    if (scriptEngine == null) {
        ScriptEngineManager factory = new ScriptEngineManager();
        scriptEngine = factory.getEngineByName("groovy");
    }//from www.ja v  a2s . c om
    totalTime = 0;
    if (inputMessage instanceof EntityDataMessage) {
        Model inputModel = getComponent().getInputModel();
        List<EntityData> inDatas = ((EntityDataMessage) inputMessage).getPayload();
        ArrayList<EntityData> outDatas = new ArrayList<EntityData>(inDatas != null ? inDatas.size() : 0);

        if (inDatas != null) {
            for (EntityData inData : inDatas) {
                EntityData outData = new EntityData();
                outData.setChangeType(inData.getChangeType());
                outDatas.add(outData);

                Set<String> attributeIds = new HashSet<String>();
                Set<ModelEntity> processedEntities = new HashSet<ModelEntity>();
                for (String attributeId : inData.keySet()) {
                    ModelAttribute attribute = inputModel.getAttributeById(attributeId);
                    if (attribute != null) {
                        ModelEntity entity = inputModel.getEntityById(attribute.getEntityId());
                        if (entity != null && !processedEntities.contains(entity)) {
                            List<ModelAttribute> attributes = entity.getModelAttributes();
                            for (ModelAttribute modelAttribute : attributes) {
                                attributeIds.add(modelAttribute.getId());
                            }
                            processedEntities.add(entity);
                        }
                    }
                }

                for (String attributeId : attributeIds) {
                    String transform = transformsByAttributeId.get(attributeId);
                    Object value = inData.get(attributeId);
                    if (isNotBlank(transform)) {
                        ModelAttribute attribute = inputModel.getAttributeById(attributeId);
                        ModelEntity entity = inputModel.getEntityById(attribute.getEntityId());

                        ModelAttributeScriptHelper helper = helpers.get(attribute.getId());
                        if (helper == null) {
                            long ts = System.currentTimeMillis();
                            scriptEngine.put("entity", entity);
                            scriptEngine.put("attribute", attribute);
                            scriptEngine.put("context", context);

                            try {
                                String importString = "import org.jumpmind.metl.core.runtime.component.ModelAttributeScriptHelper;\n";
                                String code = String.format(
                                        "return new ModelAttributeScriptHelper(context, attribute, entity) { public Object eval() { return %s } }",
                                        transform);
                                helper = (ModelAttributeScriptHelper) scriptEngine.eval(importString + code);
                                helpers.put(attribute.getId(), helper);
                            } catch (ScriptException e) {
                                throw new RuntimeException("Unable to evaluate groovy script.  Attribute ==> "
                                        + attribute.getName() + ".  Value ==> " + value.toString() + "."
                                        + e.getCause().getMessage(), e);
                            }

                            log.debug("It took " + (System.currentTimeMillis() - ts) + "ms to create class");
                        }

                        helper.setData(inData);
                        helper.setValue(value);
                        helper.setMessage(inputMessage);
                        long ts = System.currentTimeMillis();
                        value = helper.eval();
                        totalTime += (System.currentTimeMillis() - ts);
                        totalCalls++;
                    }
                    if (value != ModelAttributeScriptHelper.REMOVE_ATTRIBUTE) {
                        outData.put(attributeId, value);
                    }
                }
                getComponentStatistics().incrementNumberEntitiesProcessed(threadNumber);
            }
        }
        callback.sendEntityDataMessage(null, outDatas);

        if (totalCalls > 0) {
            log.debug("It took " + (totalTime / totalCalls) + "ms on average to call eval");
        }

    } else if (inputMessage instanceof ControlMessage) {
        callback.sendControlMessage();
    }
}

From source file:org.jumpmind.metl.core.runtime.component.Script.java

@Override
protected void start() {
    String importStatements = getComponent().get(IMPORTS);
    String initScript = getComponent().get(INIT_SCRIPT);
    String handleMessageScript = getComponent().get(HANDLE_SCRIPT);
    String methods = getComponent().get(METHODS);
    String onSuccess = getComponent().get(ON_FLOW_SUCCESS);
    String onError = getComponent().get(ON_FLOW_ERROR);

    ScriptEngineManager factory = new ScriptEngineManager();
    ScriptEngine engine = factory.getEngineByName("groovy");

    engine.put("component", this);
    StringBuilder script = new StringBuilder();
    try {/*from  ww  w.  j  a  v a  2s.  com*/
        script.append(String.format("import %s;\n", ISendMessageCallback.class.getName()));
        script.append(String.format("import %s;\n", File.class.getName()));
        script.append(String.format("import %s;\n", FileUtils.class.getName()));
        script.append(String.format("import static %s.*;\n", FileUtils.class.getName()));
        script.append(String.format("import %s.*;\n", Message.class.getPackage().getName()));
        script.append(String.format("import %s;\n", ScriptHelper.class.getName()));
        script.append(String.format("import %s;\n", EntityDataMessage.class.getName()));
        script.append(String.format("import %s;\n", TextMessage.class.getName()));
        script.append(String.format("import %s;\n", ControlMessage.class.getName()));
        script.append(String.format("import %s;\n", BinaryMessage.class.getName()));
        script.append(String.format("import %s;\n", MisconfiguredException.class.getName()));
        script.append(String.format("import %s;\n", AssertException.class.getName()));
        script.append(
                String.format("import %s.%s;\n", EntityData.class.getName(), ChangeType.class.getSimpleName()));
        script.append("import org.jumpmind.db.sql.*;\n");
        if (isNotBlank(importStatements)) {
            script.append(importStatements);
        }
        script.append("\n");
        script.append(String.format("helper = new %1$s(component) { \n", ScriptHelper.class.getSimpleName()));

        if (isNotBlank(methods)) {
            script.append("\n");
            script.append(String.format("%s\n", methods));
        }

        if (isNotBlank(initScript)) {
            script.append("\n");
            script.append(String.format(" protected void onInit() { %s \n} \n", initScript));
        }
        if (isNotBlank(handleMessageScript)) {
            script.append("\n");
            script.append(String.format(" protected void onHandle() { %s \n} \n", handleMessageScript));
        }
        if (isNotBlank(onSuccess)) {
            script.append("\n");
            script.append(String.format(" protected void onSuccess() { %s \n} \n", onSuccess));
        }
        if (isNotBlank(onError)) {
            script.append("\n");
            script.append(String.format(" protected void onError(Throwable myError) { %s \n} \n", onError));
        }
        script.append("\n};\n");

        log(LogLevel.DEBUG, script.toString());
        script.append("helper.onInit();");
        engine.eval(script.toString());
        this.engine = engine;
    } catch (ScriptException e) {
        Throwable rootCause = ExceptionUtils.getRootCause(e);
        if (rootCause != null) {
            if (rootCause instanceof RuntimeException) {
                throw (RuntimeException) rootCause;
            } else {
                throw new RuntimeException(rootCause);
            }
        } else {
            throw new RuntimeException(e);
        }
    }
}

From source file:com.mnxfst.stream.pipeline.element.script.ScriptEvaluatorPipelineElement.java

/**
 * @see akka.actor.UntypedActor#preStart()
 *//*w ww .ja v a 2  s  . co m*/
public void preStart() throws Exception {

    // initialize the script engine 
    ScriptEngineManager factory = new ScriptEngineManager();
    try {
        this.scriptEngine = factory.getEngineByName(getStringProperty(CONFIG_SCRIPT_ENGINE_NAME));
    } catch (Exception e) {
        context().parent()
                .tell(new PipelineElementSetupFailedMessage(getPipelineElementConfiguration().getPipelineId(),
                        getPipelineElementConfiguration().getElementId(),
                        PipelineElementSetupFailedMessage.GENERAL, e.getMessage()), getSelf());
        return;
    }

    // iterate from zero to max, read out init code snippets and interrupt if an empty one occurs
    for (int i = 0; i < Integer.MAX_VALUE; i++) {
        String initScript = getStringProperty(CONFIG_SCRIPT_INIT_CODE_PREFIX + i);
        if (StringUtils.isNotBlank(initScript)) {
            this.initScripts.add(loadScript(initScript.toString()));
        } else {
            break;
        }
    }

    // fetch the script to be applied for each message
    String scriptUrl = getStringProperty(CONFIG_SCRIPT_EVAL_CODE);
    //      this.evalScript = getStringProperty(CONFIG_SCRIPT_EVAL_CODE);
    if (StringUtils.isBlank(scriptUrl)) {
        context().parent()
                .tell(new PipelineElementSetupFailedMessage(getPipelineElementConfiguration().getPipelineId(),
                        getPipelineElementConfiguration().getElementId(),
                        PipelineElementSetupFailedMessage.GENERAL, "Required script code missing"), getSelf());
        return;
    }
    this.evalScript = loadScript(scriptUrl);

    // retrieve the name of the variable where the script expects the input 
    this.scriptInputVariable = getStringProperty(CONFIG_SCRIPT_INPUT_VARIABLE);
    if (StringUtils.isBlank(this.scriptInputVariable)) {
        context().parent()
                .tell(new PipelineElementSetupFailedMessage(getPipelineElementConfiguration().getPipelineId(),
                        getPipelineElementConfiguration().getElementId(),
                        PipelineElementSetupFailedMessage.GENERAL, "Required input variable missing"),
                        getSelf());
        return;
    }

    // retrieve the name of the variable where the script writes the identifier of the next pipeline element to
    this.scriptOutputNextElementVariable = getStringProperty(CONFIG_SCRIPT_OUTPUT_NEXT_ELEMENT_VARIABLE);
    if (StringUtils.isBlank(this.scriptOutputNextElementVariable)) {
        context().parent()
                .tell(new PipelineElementSetupFailedMessage(getPipelineElementConfiguration().getPipelineId(),
                        getPipelineElementConfiguration().getElementId(),
                        PipelineElementSetupFailedMessage.GENERAL,
                        "Required output (next element) variable missing"), getSelf());
        return;
    }

    // if the set of init scripts is not empty, provide them to the script engine 
    if (!initScripts.isEmpty()) {
        for (String script : initScripts) {
            this.scriptEngine.eval(script);
        }
    }
}

From source file:org.cryptomator.ui.ExitUtil.java

private void showTrayNotification(TrayIcon trayIcon) {
    if (settings.getNumTrayNotifications() <= 0) {
        return;/*w ww .  jav a2  s .  c  om*/
    } else {
        settings.setNumTrayNotifications(settings.getNumTrayNotifications() - 1);
        settings.save();
    }
    final Runnable notificationCmd;
    if (SystemUtils.IS_OS_MAC_OSX) {
        final String title = localization.getString("tray.infoMsg.title");
        final String msg = localization.getString("tray.infoMsg.msg.osx");
        final String notificationCenterAppleScript = String
                .format("display notification \"%s\" with title \"%s\"", msg, title);
        notificationCmd = () -> {
            try {
                final ScriptEngineManager mgr = new ScriptEngineManager();
                final ScriptEngine engine = mgr.getEngineByName("AppleScriptEngine");
                if (engine != null) {
                    engine.eval(notificationCenterAppleScript);
                } else {
                    Runtime.getRuntime()
                            .exec(new String[] { "/usr/bin/osascript", "-e", notificationCenterAppleScript });
                }
            } catch (ScriptException | IOException e) {
                // ignore, user will notice the tray icon anyway.
            }
        };
    } else {
        final String title = localization.getString("tray.infoMsg.title");
        final String msg = localization.getString("tray.infoMsg.msg");
        notificationCmd = () -> {
            trayIcon.displayMessage(title, msg, MessageType.INFO);
        };
    }
    SwingUtilities.invokeLater(() -> {
        notificationCmd.run();
    });
}

From source file:Engine.Lua.PlayerLua.java

public void tester(String luaFile) {
    Dog dog = new Dog("Rex");
    Cat cat = new Cat("Felix");
    ScriptEngineManager sem = new ScriptEngineManager();
    ScriptEngine scriptEngine = sem.getEngineByName("luaj");
    ClassLoader classloader = Thread.currentThread().getContextClassLoader();
    InputStream is = classloader.getResourceAsStream("Scripts/" + luaFile);
    InputStreamReader isr = new InputStreamReader(is);
    CompiledScript script;/*from   w w w . j a v a2 s . c o m*/
    try {
        script = ((Compilable) scriptEngine).compile(isr);
        isr.close();
        is.close();
        Bindings sb = new SimpleBindings();
        script.eval(sb); // Put the Lua functions into the sb environment
        LuaValue luaDog = CoerceJavaToLua.coerce(dog); // Java to Lua
        //CoerceLuaToJava()
        LuaFunction onTalk = (LuaFunction) sb.get("onTalk"); // Get Lua function
        LuaValue b = onTalk.call(luaDog); // Call the function
        System.out.println("onTalk answered: " + b);
        LuaFunction onWalk = (LuaFunction) sb.get("onWalk");
        LuaValue[] dogs = { luaDog };
        Varargs dist = onWalk.invoke(LuaValue.varargsOf(dogs)); // Alternative

        System.out.println("onWalk returned: " + dist);

        Dog retunredDog = (Dog) CoerceLuaToJava.coerce(luaDog, Dog.class);
        System.out.println("AAAAAAAAAa:" + retunredDog.name);
    } catch (ScriptException ex) {
        Logger.getLogger(PlayerLua.class.getName()).log(Level.SEVERE, null, ex);
    } catch (IOException ex) {
        Logger.getLogger(PlayerLua.class.getName()).log(Level.SEVERE, null, ex);
    }

}

From source file:org.jumpmind.metl.core.runtime.component.ContentRouter.java

@Override
protected void start() {
    ScriptEngineManager factory = new ScriptEngineManager();
    scriptEngine = factory.getEngineByName("groovy");
    TypedProperties properties = getTypedProperties();
    rowsPerMessage = properties.getLong(ROWS_PER_MESSAGE);
    String json = getComponent().get(SETTING_CONFIG);
    onlyRouteFirstMatch = getComponent().getBoolean(ONLY_ROUTE_FIRST_MATCH, false);
    if (isNotBlank(json)) {
        try {/*  ww  w. j a  va 2 s.  co  m*/
            routes = new ObjectMapper().readValue(json, new TypeReference<List<Route>>() {
            });
            // Verify all routes are valid
            for (Route route : routes) {
                FlowStepLink link = getFlow().findLinkBetweenSourceAndTarget(this.getFlowStepId(),
                        route.getTargetStepId());
                if (link == null) {
                    throw new MisconfiguredException("A route target step is not linked.");
                }
            }
        } catch (Exception e) {
            throw new IoException(e);
        }
    }
}

From source file:com.servioticy.dispatcher.SOProcessor010.java

public boolean checkFilter(JsonPathReplacer filterField, Map<String, String> inputJsons)
        throws ScriptException {
    ScriptEngineManager factory = new ScriptEngineManager();
    ScriptEngine engine = factory.getEngineByName("JavaScript");
    if (filterField == null) {
        return true;
    }/*  w  w w .j  a  v  a 2 s .com*/
    String filterCode = filterField.replace(inputJsons);

    engine.eval("var result = Boolean(" + filterCode + ")");
    return (Boolean) engine.get("result");

}