public static void main(String[] args) throws Exception {
ScriptEngineManager manager = new ScriptEngineManager();
ScriptEngine jsengine = Helper.getJsEngine(manager);
if (jsengine == null) {
System.out.println("Warning: No js engine found; test vacuously passes.");
return;
}
String langVersion = jsengine.getFactory().getLanguageVersion();
if (!langVersion.equals(JS_LANG_VERSION)) {
throw new RuntimeException("Expected JavaScript version is " + JS_LANG_VERSION);
}
String engineVersion = jsengine.getFactory().getEngineVersion();
if (!engineVersion.equals(JS_ENGINE_VERSION)) {
throw new RuntimeException("Expected Rhino version is " + JS_ENGINE_VERSION);
}
}
private L2ScriptEngineManager() {
ScriptEngineManager scriptEngineManager = new ScriptEngineManager();
List<ScriptEngineFactory> factories = scriptEngineManager.getEngineFactories();
if (Config.SCRIPT_CACHE) {
_cache = loadCompiledScriptCache();
} else {
_cache = null;
}
_log.info("Initializing Script Engine Manager");
for (ScriptEngineFactory factory : factories) {
try {
ScriptEngine engine = factory.getScriptEngine();
boolean reg = false;
for (String name : factory.getNames()) {
ScriptEngine existentEngine = _nameEngines.get(name);
if (existentEngine != null) {
double engineVer = Double.parseDouble(factory.getEngineVersion());
double existentEngVer =
Double.parseDouble(existentEngine.getFactory().getEngineVersion());
if (engineVer <= existentEngVer) {
continue;
}
}
reg = true;
_nameEngines.put(name, engine);
}
if (reg) {
_log.info(
"Script Engine: "
+ factory.getEngineName()
+ " "
+ factory.getEngineVersion()
+ " - Language: "
+ factory.getLanguageName()
+ " - Language Version: "
+ factory.getLanguageVersion());
}
for (String ext : factory.getExtensions()) {
if (!ext.equals("java") || factory.getLanguageName().equals("java")) {
_extEngines.put(ext, engine);
}
}
} catch (Exception e) {
_log.warn("Failed initializing factory. ");
e.printStackTrace();
}
}
preConfigure();
}
@SuppressWarnings("unchecked")
protected static void includeScriptLibraries(ScriptEngine engine) throws ScriptException {
FacesContext context = FacesContext.getCurrentInstance();
String language = engine.getFactory().getLanguageName();
Set<String> mimeTypes = new HashSet<String>(engine.getFactory().getMimeTypes());
mimeTypes.add("text/x-script-" + language);
Set<String> includedLibraries =
(Set<String>) getScopeMap().get("_" + language + "IncludedLibraries");
if (includedLibraries == null) {
includedLibraries = new HashSet<String>();
getScopeMap().put("_" + language + "IncludedLibraries", includedLibraries);
}
// Now look through the view's resources for appropriate scripts and load them
UIViewRootEx2 view = (UIViewRootEx2) context.getViewRoot();
if (view != null) {
for (Resource res : view.getResources()) {
if (res instanceof ScriptResource) {
ScriptResource script = (ScriptResource) res;
if (script.getType() != null && mimeTypes.contains(script.getType())) {
// Then we have a script - find its contents and run it
String properName = (script.getSrc().charAt(0) == '/' ? "" : "/") + script.getSrc();
if (!includedLibraries.contains(properName)) {
InputStream is =
context
.getExternalContext()
.getResourceAsStream("/WEB-INF/" + language + properName);
if (is != null) {
engine.eval(new InputStreamReader(is));
}
includedLibraries.add(properName);
}
}
}
}
}
}
protected void initScriptEngine() {
if (log.isDebugEnabled()) {
log.debug("Initializing script mediator for language : " + language);
}
ScriptEngineManager manager = new ScriptEngineManager();
manager.registerEngineExtension("js", new RhinoScriptEngineFactory());
manager.registerEngineExtension("groovy", new GroovyScriptEngineFactory());
manager.registerEngineExtension("rb", new JRubyScriptEngineFactory());
this.scriptEngine = manager.getEngineByExtension(language);
if (scriptEngine == null) {
handleException("No script engine found for language: " + language);
}
xmlHelper = XMLHelper.getArgHelper(scriptEngine);
this.multiThreadedEngine = scriptEngine.getFactory().getParameter("THREADING") != null;
log.debug(
"Script mediator for language : "
+ language
+ " supports multithreading? : "
+ multiThreadedEngine);
}
