Example usage for javax.script ScriptEngineManager getEngineFactories

Introduction

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

Prototype

public List<ScriptEngineFactory> getEngineFactories() 

Source Link

Document

Returns a list whose elements are instances of all the ScriptEngineFactory classes found by the discovery mechanism.

Usage

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

public void setListAvailableEngines(final boolean value) {
    this.listAvailableEngines = value;
    if (value) {//from  w w  w .j  a v  a  2  s .com
        System.out.println("*** DEBUG - Display Script Engine List ***");
        ScriptEngineManager manager = new ScriptEngineManager();
        List<ScriptEngineFactory> factories = manager.getEngineFactories();
        for (ScriptEngineFactory factory : factories) {
            System.out.println(String.format("Engine %s, Version %s, Language %s, Registered Names: %s",
                    factory.getEngineName(), factory.getEngineVersion(), factory.getLanguageName(),
                    factory.getNames().toString()));
        }
    }
}

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From source file:sample.fa.ScriptRunnerApplication.java

void createGUI() {
    Box buttonBox = Box.createHorizontalBox();

    JButton loadButton = new JButton("Load");
    loadButton.addActionListener(this::loadScript);
    buttonBox.add(loadButton);//w  w  w. j  a va2  s  .  c  om

    JButton saveButton = new JButton("Save");
    saveButton.addActionListener(this::saveScript);
    buttonBox.add(saveButton);

    JButton executeButton = new JButton("Execute");
    executeButton.addActionListener(this::executeScript);
    buttonBox.add(executeButton);

    languagesModel = new DefaultComboBoxModel();

    ScriptEngineManager sem = new ScriptEngineManager();
    for (ScriptEngineFactory sef : sem.getEngineFactories()) {
        languagesModel.addElement(sef.getScriptEngine());
    }

    JComboBox<ScriptEngine> languagesCombo = new JComboBox<>(languagesModel);
    JLabel languageLabel = new JLabel();
    languagesCombo.setRenderer((JList<? extends ScriptEngine> list, ScriptEngine se, int index,
            boolean isSelected, boolean cellHasFocus) -> {
        ScriptEngineFactory sef = se.getFactory();
        languageLabel.setText(sef.getEngineName() + " - " + sef.getLanguageName() + " (*."
                + String.join(", *.", sef.getExtensions()) + ")");
        return languageLabel;
    });
    buttonBox.add(Box.createHorizontalGlue());
    buttonBox.add(languagesCombo);

    scriptContents = new JTextArea();
    scriptContents.setRows(8);
    scriptContents.setColumns(40);

    scriptResults = new JTextArea();
    scriptResults.setEditable(false);
    scriptResults.setRows(8);
    scriptResults.setColumns(40);

    JSplitPane jsp = new JSplitPane(JSplitPane.VERTICAL_SPLIT, scriptContents, scriptResults);

    JFrame frame = new JFrame("Script Runner");
    frame.add(buttonBox, BorderLayout.NORTH);
    frame.add(jsp, BorderLayout.CENTER);

    frame.pack();
    frame.addWindowListener(new WindowAdapter() {
        @Override
        public void windowClosing(WindowEvent e) {
            System.exit(0);
        }
    });
    frame.setVisible(true);
}

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From source file:ca.hedlund.jiss.preprocessor.LangPreprocessor.java

private void printLangs(JissModel model, StringBuffer cmd) {
    final ScriptEngineManager manager = new ScriptEngineManager(JissModel.class.getClassLoader());
    final List<String> cmds = new ArrayList<String>();

    for (ScriptEngineFactory factory : manager.getEngineFactories()) {
        final String engineInfo = factory.getLanguageName() + " " + factory.getLanguageVersion() + ":"
                + factory.getEngineName() + " " + factory.getEngineVersion();
        cmds.add(createPrintCmd(model, engineInfo));
    }//w w  w  .j a v a 2 s . c om
    final ScriptEngineFactory factory = model.getScriptEngine().getFactory();
    final String prog = StringEscapeUtils.unescapeJava(factory.getProgram(cmds.toArray(new String[0])));
    cmd.append(prog);
}

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From source file:ca.hedlund.jiss.preprocessor.LangPreprocessor.java

@Override
public boolean preprocessCommand(JissModel jissModel, String orig, StringBuffer cmd) {
    final String c = cmd.toString();
    if (c.equals("::langs")) {
        cmd.setLength(0);/*  w w w. j  ava 2s . com*/
        printLangs(jissModel, cmd);
    } else if (c.equals("::lang")) {
        cmd.setLength(0);
        printCurrentLang(jissModel, cmd);
    } else if (c.startsWith("::lang")) {
        cmd.setLength(0);

        final String parts[] = c.split("\\p{Space}");
        if (parts.length == 2) {
            final String lang = parts[1];

            final ScriptEngineManager manager = new ScriptEngineManager(JissModel.class.getClassLoader());
            ScriptEngine newEngine = null;
            for (ScriptEngineFactory factory : manager.getEngineFactories()) {
                if (factory.getLanguageName().equals(lang) || factory.getExtensions().contains(lang)
                        || factory.getMimeTypes().contains(lang)) {
                    newEngine = factory.getScriptEngine();
                    break;
                }
            }

            if (newEngine != null) {
                jissModel.setScriptEngine(newEngine);
                printCurrentLang(jissModel, cmd);
            }
        }
    }
    return false;
}

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From source file:org.apache.accumulo.core.util.shell.commands.ScriptCommand.java

private void listJSREngineInfo(ScriptEngineManager mgr, Shell shellState) throws IOException {
    List<ScriptEngineFactory> factories = mgr.getEngineFactories();
    Set<String> lines = new TreeSet<String>();
    for (ScriptEngineFactory factory : factories) {
        lines.add("ScriptEngineFactory Info");
        String engName = factory.getEngineName();
        String engVersion = factory.getEngineVersion();
        String langName = factory.getLanguageName();
        String langVersion = factory.getLanguageVersion();
        lines.add("\tScript Engine: " + engName + " (" + engVersion + ")");
        List<String> engNames = factory.getNames();
        for (String name : engNames) {
            lines.add("\tEngine Alias: " + name);
        }//from w  w w  .  j  a  v  a  2  s  .  co  m
        lines.add("\tLanguage: " + langName + " (" + langVersion + ")");
    }
    shellState.printLines(lines.iterator(), true);

}

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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 {//from w  ww .  ja v  a  2s .  c om
        _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.l2jfree.gameserver.scripting.L2ScriptEngineManager.java

private L2ScriptEngineManager() {
    ScriptEngineManager scriptEngineManager = new ScriptEngineManager();
    List<ScriptEngineFactory> factories = scriptEngineManager.getEngineFactories();
    if (USE_COMPILED_CACHE) {
        _cache = loadCompiledScriptCache();
    } else {/*from  w  w  w.ja  va2 s. 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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