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;
}
public void addPlugin(ApplicationPlugin plugin) throws Exception {
plugins.put(plugin.getName(), plugin);
pluginDescriptors.put(name, plugin.init(applicationClass.getClassLoader(), new JSON()));
}