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

Example 1 with ScriptEngineManager

use of javax.script.ScriptEngineManager in project cas by apereo.

the class ScriptedRegisteredServiceAttributeReleasePolicy method getAttributesInternal.

@Override
protected Map<String, Object> getAttributesInternal(final Map<String, Object> attributes, final RegisteredService service) {
    try {
        String engineName = null;
        if (this.scriptFile.endsWith(".py")) {
            engineName = "python";
        } else if (this.scriptFile.endsWith(".js")) {
            engineName = "js";
        } else if (this.scriptFile.endsWith(".groovy")) {
            engineName = "groovy";
        }
        final ScriptEngine engine = new ScriptEngineManager().getEngineByName("python");
        if (engine == null || StringUtils.isBlank(engineName)) {
            LOGGER.warn("Script engine is not available for [{}]", engineName);
        } else {
            final File theScriptFile = ResourceUtils.getResourceFrom(this.scriptFile).getFile();
            if (theScriptFile.exists()) {
                LOGGER.debug("Created python object instance from class [{}]", theScriptFile.getCanonicalPath());
                final Object[] args = { attributes, LOGGER };
                LOGGER.debug("Executing python script's run method, with parameters [{}]", args);
                engine.eval(new FileReader(theScriptFile));
                final Invocable invocable = (Invocable) engine;
                final Map<String, Object> personAttributesMap = (Map<String, Object>) invocable.invokeFunction("run", args);
                LOGGER.debug("Final set of attributes determined by the script are [{}]", personAttributesMap);
                return personAttributesMap;
            }
            LOGGER.warn("Python script [{}] does not exist, or cannot be loaded", scriptFile);
        }
    } catch (final Exception e) {
        LOGGER.error(e.getMessage(), e);
    }
    return new HashMap<>();
}

Example 2 with ScriptEngineManager

use of javax.script.ScriptEngineManager in project jOOQ by jOOQ.

the class NashornTest method testScripts.

@Test
public void testScripts() throws Exception {
    Stream.of(new File(getClass().getResource("/org/jooq/example/test").toURI()).listFiles((dir, name) -> name.endsWith(".js"))).forEach(file -> {
        ScriptEngineManager manager = new ScriptEngineManager();
        ScriptEngine engine = manager.getEngineByName("nashorn");
        Bindings bindings = engine.getBindings(ENGINE_SCOPE);
        bindings.put("connection", connection);
        try {
            engine.eval(new FileReader(file));
        } catch (Exception e) {
            throw new RuntimeException("Error while running " + file, e);
        }
    });
}

Example 3 with ScriptEngineManager

use of javax.script.ScriptEngineManager in project opennms by OpenNMS.

the class OSGiScriptEngineManager method getEngineByMimeType.

public ScriptEngine getEngineByMimeType(String mimeType) {
    //TODO this is a hack to deal with context class loader issues
    ScriptEngine engine = null;
    for (ScriptEngineManager manager : classLoaders.keySet()) {
        ClassLoader old = Thread.currentThread().getContextClassLoader();
        Thread.currentThread().setContextClassLoader(classLoaders.get(manager));
        engine = manager.getEngineByMimeType(mimeType);
        Thread.currentThread().setContextClassLoader(old);
        if (engine != null)
            break;
    }
    return engine;
}

Example 4 with ScriptEngineManager

use of javax.script.ScriptEngineManager in project opennms by OpenNMS.

the class OSGiScriptEngineManager method getEngineByExtension.

public ScriptEngine getEngineByExtension(String extension) {
    //TODO this is a hack to deal with context class loader issues
    ScriptEngine engine = null;
    for (ScriptEngineManager manager : classLoaders.keySet()) {
        ClassLoader old = Thread.currentThread().getContextClassLoader();
        Thread.currentThread().setContextClassLoader(classLoaders.get(manager));
        engine = manager.getEngineByExtension(extension);
        Thread.currentThread().setContextClassLoader(old);
        if (engine != null)
            break;
    }
    return engine;
}

Example 5 with ScriptEngineManager

use of javax.script.ScriptEngineManager in project POL-POM-5 by PlayOnLinux.

the class NashornEngineFactory method createEngine.

NashornEngine createEngine() {
    final Set<List<String>> includedScripts = new HashSet<>();
    final NashornEngine nashornEngine = new NashornEngine(new ScriptEngineManager().getEngineByName("nashorn"));
    nashornEngine.eval(new InputStreamReader(getClass().getResourceAsStream("utils.js")), this::throwException);
    nashornEngine.put("Bean", (Function<String, Object>) title -> applicationContext.getBean(title), this::throwException);
    nashornEngine.put("SetupWizard", (Function<String, UiSetupWizardImplementation>) (name) -> {
        final UiSetupWizardImplementation uiSetupWizardImplementation = uiSetupWizardFactory.create(name);
        nashornEngine.addErrorHandler(e -> uiSetupWizardImplementation.close());
        return uiSetupWizardImplementation;
    }, this::throwException);
    nashornEngine.put("EngineProgressUi", (Function<String, UiProgressWizardImplementation>) (name) -> {
        final UiProgressWizardImplementation uiProgressWizardImplementation = uiProgressWizardFactory.create(name);
        nashornEngine.addErrorHandler(e -> uiProgressWizardImplementation.close());
        return uiProgressWizardImplementation;
    }, this::throwException);
    nashornEngine.put("include", (Consumer<ScriptObjectMirror>) args -> {
        final String[] arguments = args.to(String[].class);
        final String script = scriptFetcher.getScript(arguments);
        if (script == null) {
            throwException(new ScriptException(Arrays.asList(arguments).toString() + " is not found"));
        }
        if (includedScripts.add(Arrays.asList(arguments))) {
            nashornEngine.eval("//# sourceURL=" + Arrays.asList(arguments).toString() + "\n" + script, this::throwException);
        }
    }, this::throwException);
    return nashornEngine;
}