void beforeBeanDiscovery(@Observes BeforeBeanDiscovery event, final BeanManager beanManager) {
// We are in provided mode
if (this.context == null) {
// This is not really clean : it couples the inject to the application notion
// but avoiding that would mean to introduce more complex stuff and so
// it's fine for the moment
try {
final ClassLoader cl = Thread.currentThread().getContextClassLoader();
InputStream in = cl.getResourceAsStream("juzu/config.json");
String serializedConfig = Tools.read(in);
JSON config = (JSON) JSON.parse(serializedConfig);
JSON applications = config.getJSON("application");
if (applications.names().size() != 1) {
throw new RuntimeException(
"Was expecting application size to be 1 instead of " + applications);
}
String packageFQN = applications.names().iterator().next();
ApplicationDescriptor descriptor = ApplicationDescriptor.create(cl, packageFQN);
// For now we don't resolve anything...
ResourceResolver resourceResolver =
new ResourceResolver() {
public URL resolve(String uri) {
return null;
}
};
//
ProvidedCDIInjector injector =
new ProvidedCDIInjector(cl, beanManager, descriptor, resourceResolver);
// We start the application
// it should:
// - instantiate the plugins
// - bind the beans from the plugins in the container
// we rely on the lazy nature of the beans for not really starting...
Application application = injector.getApplication();
application.start();
// At this point the application is not really started
// we must go through the other CDI phases for effectively registering
// the beans in the container
this.context = (CDIContext) application.getInjectionContext();
} catch (Exception e) {
throw new UnsupportedOperationException(e);
}
}
}
public ApplicationDescriptor(Class<?> applicationClass) throws Exception {
// Load config
JSON config;
InputStream in = null;
try {
in = applicationClass.getResourceAsStream("config.json");
String s = Tools.read(in);
config = (JSON) JSON.parse(s);
} catch (IOException e) {
throw new AssertionError(e);
} finally {
Tools.safeClose(in);
}
//
Class<?> packageClass;
try {
packageClass =
applicationClass
.getClassLoader()
.loadClass(applicationClass.getPackage().getName() + ".package-info");
} catch (ClassNotFoundException e) {
AssertionError ae = new AssertionError("Cannot load package class");
ae.initCause(e);
throw ae;
}
//
HashMap<String, ApplicationPlugin> pluginMap = new HashMap<String, ApplicationPlugin>();
for (ApplicationPlugin plugin : ServiceLoader.load(ApplicationPlugin.class)) {
pluginMap.put(plugin.getName(), plugin);
}
//
HashMap<String, Descriptor> pluginDescriptors = new HashMap<String, Descriptor>();
for (String name : config.names()) {
ApplicationPlugin plugin = pluginMap.get(name);
if (plugin == null) {
throw new UnsupportedOperationException("Handle me gracefully : missing plugin " + name);
}
JSON pluginConfig = config.getJSON(name);
Descriptor pluginDescriptor = plugin.init(applicationClass.getClassLoader(), pluginConfig);
pluginDescriptors.put(name, pluginDescriptor);
}
//
for (Iterator<String> i = pluginMap.keySet().iterator(); i.hasNext(); ) {
String name = i.next();
if (!pluginDescriptors.containsKey(name)) {
i.remove();
}
}
//
this.applicationClass = applicationClass;
this.name = applicationClass.getSimpleName();
this.packageName = applicationClass.getPackage().getName();
this.templates = (TemplatesDescriptor) pluginDescriptors.get("template");
this.packageClass = packageClass;
this.controllers = (ControllersDescriptor) pluginDescriptors.get("controller");
this.pluginDescriptors = pluginDescriptors;
this.plugins = pluginMap;
}