Example usage for javax.script ScriptEngineManager getEngineByName

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:edu.anu.spice.SpiceScorer.java

public void scoreBatch(SpiceArguments args) throws IOException, ScriptException {
    Stopwatch timer = Stopwatch.createStarted();
    SpiceParser parser = new SpiceParser(args.cache, args.numThreads, args.synsets);

    // Build filters for tuple categories
    Map<String, TupleFilter> filters = new HashMap<String, TupleFilter>();
    if (args.tupleSubsets) {
        filters.put("Object", TupleFilter.objectFilter);
        filters.put("Attribute", TupleFilter.attributeFilter);
        filters.put("Relation", TupleFilter.relationFilter);
        filters.put("Cardinality", TupleFilter.cardinalityFilter);
        filters.put("Color", TupleFilter.colorFilter);
        filters.put("Size", TupleFilter.sizeFilter);
    }/*from   w  ww.j  a  va  2 s.c o m*/

    // Parse test and refs from input file
    ArrayList<Object> image_ids = new ArrayList<Object>();
    ArrayList<String> testCaptions = new ArrayList<String>();
    ArrayList<String> refCaptions = new ArrayList<String>();
    ArrayList<Integer> refChunks = new ArrayList<Integer>();
    JSONParser json = new JSONParser();
    JSONArray input;
    try {
        input = (JSONArray) json.parse(new FileReader(args.inputPath));
        for (Object o : input) {
            JSONObject item = (JSONObject) o;
            image_ids.add(item.get("image_id"));
            testCaptions.add((String) item.get("test"));
            JSONArray refs = (JSONArray) item.get("refs");
            refChunks.add(refs.size());
            for (Object ref : refs) {
                refCaptions.add((String) ref);
            }
        }
    } catch (ParseException e) {
        System.err.println("Could not read input: " + args.inputPath);
        System.err.println(e.toString());
        e.printStackTrace();
    }

    System.err.println("Parsing reference captions");
    List<SceneGraph> refSgs = parser.parseCaptions(refCaptions, refChunks);
    System.err.println("Parsing test captions");
    List<SceneGraph> testSgs = parser.parseCaptions(testCaptions);

    this.stats = new SpiceStats(filters, args.detailed);
    for (int i = 0; i < testSgs.size(); ++i) {
        this.stats.score(image_ids.get(i), testSgs.get(i), refSgs.get(i), args.synsets);
    }
    if (!args.silent) {
        System.out.println(this.stats.toString());
    }

    if (args.outputPath != null) {
        BufferedWriter outputWriter = new BufferedWriter(new FileWriter(args.outputPath));

        // Pretty print output using javascript
        String jsonStringNoWhitespace = this.stats.toJSONString();
        ScriptEngineManager manager = new ScriptEngineManager();
        ScriptEngine scriptEngine = manager.getEngineByName("JavaScript");
        scriptEngine.put("jsonString", jsonStringNoWhitespace);
        scriptEngine.eval("result = JSON.stringify(JSON.parse(jsonString), null, 2)");
        String prettyPrintedJson = (String) scriptEngine.get("result");

        outputWriter.write(prettyPrintedJson);
        outputWriter.close();
    }
    System.out.println("SPICE evaluation took: " + timer.stop());
}

---

From source file:org.pentaho.platform.plugin.condition.scriptable.ScriptableCondition.java

public boolean shouldExecute(final Map currentInputs, final Log logger) throws Exception {
    boolean shouldExecute = this.getDefaultResult();
    ScriptEngineManager mgr = new ScriptEngineManager();
    ScriptEngine engine = mgr.getEngineByName(this.getScriptLanguage());
    if (engine == null) {
        throw new IllegalArgumentException(Messages.getInstance().getErrorString(
                "ScriptableCondition.ERROR_0001_ENGINE_NOT_AVAILABLE", this.getScriptLanguage())); //$NON-NLS-1$
    }//from  w w  w. ja  v a  2  s .co  m
    Object inputValue;
    IActionParameter inputParameter;
    String inputName = null;
    Iterator inputs = currentInputs.entrySet().iterator();
    Map.Entry mapEntry;
    while (inputs.hasNext()) {
        mapEntry = (Map.Entry) inputs.next();
        inputName = (String) mapEntry.getKey();
        if (this.getIgnoreInputNamesWithMinus() && inputName.indexOf('-') >= 0) {
            logger.info(Messages.getInstance().getString("ScriptableCondition.INFO_IGNORED_INPUT", inputName)); //$NON-NLS-1$
            continue;
        }
        inputParameter = (IActionParameter) mapEntry.getValue();
        inputValue = inputParameter.getValue();
        engine.put(inputName, inputValue); // What happens to resultset objects I wonder...
    }
    engine.put("out", System.out);
    engine.put("rule", this);
    Object resultObject = engine.eval(this.getScript());
    if (resultObject instanceof Boolean) {
        return ((Boolean) resultObject).booleanValue();
    } else if (resultObject instanceof String) {
        return ("true".equalsIgnoreCase(resultObject.toString()))
                || ("yes".equalsIgnoreCase(resultObject.toString())); //$NON-NLS-1$ //$NON-NLS-2$
    } else if (resultObject instanceof Number) {
        return ((Number) resultObject).intValue() > 0;
    } else if (resultObject instanceof IPentahoResultSet) {
        return ((IPentahoResultSet) resultObject).getRowCount() > 0;
    }
    logger.info(Messages.getInstance().getString("ScriptableCondition.INFO_DEFAULT_RESULT_RETURNED")); //$NON-NLS-1$
    return shouldExecute;
}

---

From source file:net.mindengine.galen.suite.actions.GalenPageActionRunJavascript.java

@Override
public List<ValidationError> execute(Browser browser, GalenPageTest pageTest,
        ValidationListener validationListener) throws Exception {

    File file = GalenUtils.findFile(javascriptPath);
    Reader scriptFileReader = new FileReader(file);
    ScriptEngineManager factory = new ScriptEngineManager();
    ScriptEngine engine = factory.getEngineByName("JavaScript");
    ScriptContext context = engine.getContext();
    context.setAttribute("name", "JavaScript", ScriptContext.ENGINE_SCOPE);

    engine.put("global", new ScriptExecutor(engine, file.getParent()));
    engine.put("browser", browser);

    provideWrappedWebDriver(engine, browser);

    importAllMajorClasses(engine);/*from w  w  w. j av a  2s .c  om*/
    engine.eval("var arg = " + jsonArguments);
    engine.eval(scriptFileReader);
    return NO_ERRORS;
}

---

From source file:it.geosolutions.geobatch.action.scripting.ScriptingTest.java

@Test
public void testGroovy() throws ScriptException {

    String engineName = "groovy";

    ScriptEngineManager mgr = new ScriptEngineManager();
    // create a JavaScript engine
    ScriptEngine engine = mgr.getEngineByName(engineName);
    assertNotNull("Can't find engine '" + engineName + "'", engine);

    ScriptEngineFactory sef = engine.getFactory();
    System.out.println("FACTORY for " + engineName + ": " + "'" + sef.getEngineName() + "' " + "'"
            + sef.getLanguageName() + "' " + "'" + sef.getExtensions() + "' " + "'" + sef.getNames() + "' ");

    // evaluate code from String
    engine.eval("println \"hello, groovy\"");
}

---

From source file:it.geosolutions.geobatch.action.scripting.ScriptingTest.java

@Test
public void testGroovyFileAndParam() throws ScriptException, IOException {

    String engineName = "groovy";

    ScriptEngineManager mgr = new ScriptEngineManager();
    // create a JavaScript engine
    ScriptEngine engine = mgr.getEngineByName(engineName);
    assertNotNull("Can't find engine '" + engineName + "'", engine);

    File script = new ClassPathResource("test-data/test.groovy").getFile();

    assertNotNull("Can't find test script", script);

    engine.put("gbtest", "testok");

    // evaluate code from File
    engine.eval(new FileReader(script));
}

---

From source file:org.apache.ranger.plugin.conditionevaluator.RangerScriptConditionEvaluator.java

@Override
public void init() {

    if (LOG.isDebugEnabled()) {
        LOG.debug("==> RangerScriptConditionEvaluator.init(" + condition + ")");
    }//  ww w .  j a va 2 s .c  om

    super.init();

    String engineName = "JavaScript";

    Map<String, String> evalOptions = conditionDef.getEvaluatorOptions();

    if (MapUtils.isNotEmpty(evalOptions)) {
        engineName = evalOptions.get("engineName");
    }

    if (StringUtils.isBlank(engineName)) {
        engineName = "JavaScript";
    }

    if (LOG.isDebugEnabled()) {
        LOG.debug("RangerScriptConditionEvaluator.init() - engineName=" + engineName);
    }

    try {
        ScriptEngineManager manager = new ScriptEngineManager();
        scriptEngine = manager.getEngineByName(engineName);
    } catch (Exception exp) {
        LOG.error("RangerScriptConditionEvaluator.init() failed with exception=" + exp);
    }

    if (LOG.isDebugEnabled()) {
        LOG.debug("<== RangerScriptConditionEvaluator.init(" + condition + ")");
    }
}

---

From source file:org.sonar.fortify.crawler.Main.java

private void executeJSCode(String pageSrc) throws ScriptException {
    ScriptEngineManager factory = new ScriptEngineManager();
    ScriptEngine engine = factory.getEngineByName("JavaScript");
    engine.put("d", this);
    engine.eval(pageSrc);//from w w w .j a v a2s .  c  o m
}

---

From source file:com.qwazr.scripts.ScriptManager.java

private ScriptManager(ExecutorService executorService, File rootDirectory)
        throws IOException, URISyntaxException {

    // Load Nashorn
    ScriptEngineManager manager = new ScriptEngineManager();
    scriptEngine = manager.getEngineByName("nashorn");
    runsMap = new HashMap<String, RunThreadAbstract>();
    this.executorService = executorService;
}

---

From source file:com.viddu.handlebars.HandlebarsNashorn.java

HandlebarsNashorn(Reader handlebarsLib) throws HandlebarsException {
    ScriptEngineManager engineManager = new ScriptEngineManager();
    this.engine = engineManager.getEngineByName("nashorn");
    try {/* www.  java2  s. c  o  m*/
        engine.eval(handlebarsLib);
        handlebars = engine.eval("Handlebars");
        JSON = engine.eval("JSON");

        engine.eval("var ScriptUtils = Java.type('jdk.nashorn.api.scripting.ScriptUtils')\n"
                + "var wrapper = function(name, biFunctionInstance){\n"
                + "    Handlebars.registerHelper(name, function(context, options){\n"
                + "        var wrappedContext = ScriptUtils.wrap(context);\n"
                + "        var wrappedOptions = ScriptUtils.wrap(options);\n"
                + "        return biFunctionInstance.apply(wrappedContext, wrappedOptions); \n" + "    }); \n"
                + "}");
    } catch (ScriptException e) {
        logger.debug("Error in script:{}", e);
        throw new HandlebarsException(e);
    }
    this.objectMapper = new ObjectMapper();
    this.objectMapper.enable(SerializationFeature.WRAP_ROOT_VALUE);
    this.mapper = new ObjectMapper();
}

---

From source file:org.craftercms.engine.scripting.impl.Jsr233CompiledScriptFactory.java

@PostConstruct
public void init() {
    ScriptEngineManager scriptEngineManager = new ScriptEngineManager();
    scriptEngine = (Compilable) scriptEngineManager.getEngineByName(scriptEngineName);
}

---

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