Example usage for javax.script ScriptEngineManager ScriptEngineManager

Introduction

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

Prototype

public ScriptEngineManager() 

Source Link

Document

The effect of calling this constructor is the same as calling ScriptEngineManager(Thread.currentThread().getContextClassLoader()).

Usage

From source file:org.openhab.core.jsr223.internal.engine.scriptmanager.Script.java

public void loadScript(File file) throws FileNotFoundException, ScriptException, NoSuchMethodException {
    logger.info("Loading Script " + file.getName());
    String extension = getFileExtension(file);
    ScriptEngineManager factory = new ScriptEngineManager();
    engine = factory.getEngineByExtension(extension);
    if (engine != null) {
        logger.info("EngineName: " + engine.getFactory().getEngineName());
        initializeSciptGlobals();//  w ww  .  j  a  v a2  s.  c o m
        engine.eval(new FileReader(file));
        Invocable inv = (Invocable) engine;
        RuleSet ruleSet = (RuleSet) inv.invokeFunction("getRules");
        rules.addAll(ruleSet.getRules());
    }
}

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From source file:com.aionemu.commons.scripting.AionScriptEngineManager.java

private AionScriptEngineManager() {
    ScriptEngineManager scriptEngineManager = new ScriptEngineManager();
    List<ScriptEngineFactory> factories = scriptEngineManager.getEngineFactories();
    if (USE_COMPILED_CACHE) {
        _cache = loadCompiledScriptCache();
    } else {/*  w ww  . jav  a  2s .c  o  m*/
        _cache = null;
    }
    log.info("Initializing Script Engine Manager");

    for (ScriptEngineFactory factory : factories) {
        try {
            log.info("Script Engine: " + factory.getEngineName() + " " + factory.getEngineVersion()
                    + " - Language: " + factory.getLanguageName() + " " + factory.getLanguageVersion());

            ScriptEngine engine = factory.getScriptEngine();

            for (String name : factory.getNames()) {
                if (_nameEngines.containsKey(name))
                    throw new IllegalStateException("Multiple script engines for the same name!");

                _nameEngines.put(name, engine);
            }

            for (String ext : factory.getExtensions()) {
                if (_extEngines.containsKey(ext))
                    throw new IllegalStateException("Multiple script engines for the same extension!");

                _extEngines.put(ext, engine);
            }
        } catch (Exception e) {
            log.warn("Failed initializing factory.", e);
        }
    }
}

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From source file:com.mgmtp.jfunk.core.scripting.ScriptExecutor.java

/**
 * Executes the specified Groovy script.
 *
 * @param script/*from w ww  .  j a v  a  2 s  .  c  o m*/
 *            the script file
 * @param scriptProperties
 *            properties that are set to the script engine's binding and thus will be available
 *            as variables in the Groovy script
 * @return the execution result, {@code true} if successful, {@code false} code
 */
public boolean executeScript(final File script, final Properties scriptProperties) {
    checkState(script.exists(), "Script file does not exist: %s", script);
    checkState(script.canRead(), "Script file is not readable: %s", script);

    Reader reader = null;
    boolean success = false;
    Throwable throwable = null;

    scriptScope.enterScope();
    ScriptContext ctx = scriptContextProvider.get();
    try {
        reader = Files.newReader(script, charset);

        ScriptEngine scriptEngine = new ScriptEngineManager().getEngineByExtension("groovy");
        ctx.setScript(script);
        ctx.load(JFunkConstants.SCRIPT_PROPERTIES, false);
        ctx.registerReporter(new SimpleReporter());
        initGroovyCommands(scriptEngine, ctx);
        initScriptProperties(scriptEngine, scriptProperties);
        ScriptMetaData scriptMetaData = scriptMetaDataProvider.get();
        scriptMetaData.setScriptName(script.getPath());

        Date startDate = new Date();
        scriptMetaData.setStartDate(startDate);
        ctx.set(JFunkConstants.SCRIPT_START_MILLIS, String.valueOf(startDate.getTime()));

        eventBus.post(scriptEngine);
        eventBus.post(new BeforeScriptEvent(script.getAbsolutePath()));
        scriptEngine.eval(reader);
        success = true;
    } catch (IOException ex) {
        throwable = ex;
        log.error("Error loading script: " + script, ex);
    } catch (ScriptException ex) {
        throwable = ex;

        // Look up the cause hierarchy if we find a ModuleExecutionException.
        // We only need to log exceptions other than ModuleExecutionException because they
        // have already been logged and we don't want to pollute the log file any further.
        // In fact, other exception cannot normally happen.
        Throwable th = ex;
        while (!(th instanceof ModuleExecutionException)) {
            if (th == null) {
                // log original exception
                log.error("Error executing script: " + script, ex);
                success = false;
                break;
            }
            th = th.getCause();
        }
    } finally {
        try {
            ScriptMetaData scriptMetaData = scriptMetaDataProvider.get();

            Date endDate = new Date();
            scriptMetaData.setEndDate(endDate);
            ctx.set(JFunkConstants.SCRIPT_END_MILLIS, String.valueOf(endDate.getTime()));

            scriptMetaData.setThrowable(throwable);
            eventBus.post(new AfterScriptEvent(script.getAbsolutePath(), success));
        } finally {
            scriptScope.exitScope();
            closeQuietly(reader);
        }
    }

    return success;
}

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From source file:org.nuxeo.automation.scripting.test.TestCompileAndContext.java

@Test
public void testNashornWithCompile() throws Exception {
    ScriptEngineManager engineManager = new ScriptEngineManager();
    ScriptEngine engine = engineManager.getEngineByName(AutomationScriptingConstants.NASHORN_ENGINE);
    assertNotNull(engine);/*  www.  j a va  2s.  c  o  m*/

    Compilable compiler = (Compilable) engine;
    assertNotNull(compiler);

    InputStream stream = this.getClass().getResourceAsStream("/testScript" + ".js");
    assertNotNull(stream);
    String js = IOUtils.toString(stream);

    CompiledScript compiled = compiler.compile(new StringReader(js));

    engine.put("mapper", new Mapper());

    compiled.eval(engine.getContext());
    assertEquals("1" + System.lineSeparator() + "str" + System.lineSeparator() + "[1, 2, {a=1, b=2}]"
            + System.lineSeparator() + "{a=1, b=2}" + System.lineSeparator() + "This is a string"
            + System.lineSeparator() + "This is a string" + System.lineSeparator() + "2"
            + System.lineSeparator() + "[A, B, C]" + System.lineSeparator() + "{a=salut, b=from java}"
            + System.lineSeparator() + "done" + System.lineSeparator(), outContent.toString());
}

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From source file:com.orange.clara.cloud.servicedbdumper.config.CatalogConfig.java

private float getCostFromQuota(String quota, String formula) throws ParseException, ScriptException {
    long size = ByteFormat.parse(quota);
    String formulaInjected = formula.replaceAll("quota", String.valueOf(size * this.getDefaultCost()));
    ScriptEngineManager factory = new ScriptEngineManager();
    ScriptEngine engine = factory.getEngineByName("JavaScript");
    Object eval = engine.eval(formulaInjected);
    if (eval instanceof Integer) {
        return new Float((Integer) eval);
    }//from  ww  w.j a  va2  s. c  om
    if (eval instanceof Float) {
        return (Float) eval;
    }
    return Math.round((Double) eval);
}

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From source file:com.heisenberg.api.WorkflowEngineConfiguration.java

protected void initializeScriptEngineManager() {
    registerService(new ScriptEngineManager());
}

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From source file:com.l2jfree.gameserver.scripting.L2ScriptEngineManager.java

private L2ScriptEngineManager() {
    ScriptEngineManager scriptEngineManager = new ScriptEngineManager();
    List<ScriptEngineFactory> factories = scriptEngineManager.getEngineFactories();
    if (USE_COMPILED_CACHE) {
        _cache = loadCompiledScriptCache();
    } else {/*from  ww  w  .ja  v  a 2s  . c o  m*/
        _cache = null;
    }
    _log.info("Initializing Script Engine Manager");

    for (ScriptEngineFactory factory : factories) {
        try {
            _log.info("Script Engine: " + factory.getEngineName() + " " + factory.getEngineVersion()
                    + " - Language: " + factory.getLanguageName() + " " + factory.getLanguageVersion());

            ScriptEngine engine = factory.getScriptEngine();

            for (String name : factory.getNames()) {
                if (_nameEngines.containsKey(name))
                    throw new IllegalStateException("Multiple script engines for the same name!");

                _nameEngines.put(name, engine);
            }

            for (String ext : factory.getExtensions()) {
                if (_extEngines.containsKey(ext))
                    throw new IllegalStateException("Multiple script engines for the same extension!");

                _extEngines.put(ext, engine);
            }
        } catch (Exception e) {
            _log.warn("Failed initializing factory.", e);
        }
    }

    preConfigure();
}

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From source file:com.seajas.search.profiler.controller.ModifierController.java

/**
 * Available script languages.//from   w w w.j  a  v  a 2  s .  com
 * 
 * @return Map<String, String>
 */
@ModelAttribute("scriptLanguages")
public Map<String, String> populateScriptLanguages() {
    Map<String, String> scriptLanguages = new LinkedHashMap<String, String>();

    for (ScriptEngineFactory factory : new ScriptEngineManager().getEngineFactories())
        if (factory.getLanguageName().equalsIgnoreCase("ECMAScript"))
            scriptLanguages.put(factory.getLanguageName(), "JavaScript");
        else if (factory.getLanguageName().equalsIgnoreCase("Groovy")
                || factory.getLanguageName().equalsIgnoreCase("Scala")
                || factory.getLanguageName().equalsIgnoreCase("Ruby"))
            scriptLanguages.put(factory.getLanguageName(), StringUtils.capitalize(factory.getLanguageName()));

    scriptLanguages.put("xslt", "XSLT");

    return scriptLanguages;
}

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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));
}

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From source file:org.nyu.edu.dlts.CodeViewerDialog.java

/**
 * Method to evaluate the syntax of the script.
 * Basically try running and see if any syntax errors occur
 *//*  ww w . ja v a  2s. com*/
private void evaluateButtonActionPerformed() {
    try {
        if (textArea.getSyntaxEditingStyle().equals(RSyntaxTextArea.SYNTAX_STYLE_JAVA)) {
            Interpreter bsi = new Interpreter();
            bsi.set("record", new String("Test"));
            bsi.set("recordType", "test");
            bsi.eval(getCurrentScript());
        } else if (textArea.getSyntaxEditingStyle().equals(RSyntaxTextArea.SYNTAX_STYLE_RUBY)) {
            ScriptEngineManager manager = new ScriptEngineManager();
            ScriptEngine jri = manager.getEngineByName("jruby");
            jri.put("recordType", "test");
            jri.eval(getCurrentScript());
        } else if (textArea.getSyntaxEditingStyle().equals(RSyntaxTextArea.SYNTAX_STYLE_PYTHON)) {
            PythonInterpreter pyi = new PythonInterpreter();
            pyi.set("record", new String("Test"));
            pyi.set("recordType", "test");
            pyi.exec(getCurrentScript());
        } else {
            // must be java script
            ScriptEngineManager manager = new ScriptEngineManager();
            ScriptEngine jsi = manager.getEngineByName("javascript");
            jsi.put("record", new String("Test"));
            jsi.put("recordType", "test");
            jsi.eval(getCurrentScript());
        }

        messageTextArea.setText("No Syntax Errors Found ...");
    } catch (Exception e) {
        messageTextArea.setText("Error Occurred:\n" + dbCopyFrame.getStackTrace(e));
    }
}

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