@SuppressWarnings("unchecked")
public static <P extends Plugin, VPP extends P> List<P> createPluginsOfType(
BRJS brjs, Class<P> pluginInterface, Class<VPP> virtualProxyClass) {
ClassLoader classLoader = Plugin.class.getClassLoader();
try {
pluginInterface = (Class<P>) classLoader.loadClass(pluginInterface.getCanonicalName());
} catch (Exception ex) {
throw new RuntimeException(ex);
}
Logger logger = brjs.logger(BRJSPluginLocator.class);
List<P> objectList = new ArrayList<P>();
try {
ServiceLoader<P> loader = ServiceLoader.load(pluginInterface, classLoader);
Iterator<P> objectIterator = loader.iterator();
while (objectIterator.hasNext()) {
P object = objectIterator.next();
if (virtualProxyClass != null) {
object = virtualProxyClass.getConstructor(pluginInterface).newInstance(object);
}
objectList.add(object);
}
} catch (ServiceConfigurationError serviceError) {
Throwable cause = serviceError.getCause();
if (cause != null && cause.getClass() == InstantiationException.class) {
if (logger != null) {
logger.error(Messages.CANNOT_CREATE_INSTANCE_LOG_MSG, cause.getMessage());
} else {
System.err.println(
String.format(Messages.CANNOT_CREATE_INSTANCE_LOG_MSG, cause.getMessage()));
}
} else {
if (logger != null) {
logger.error(Messages.ERROR_CREATING_OBJECT_LOG_MSG, serviceError);
} else {
System.err.println(String.format(Messages.ERROR_CREATING_OBJECT_LOG_MSG, serviceError));
}
}
} catch (NullPointerException
| NoSuchMethodException
| InstantiationException
| IllegalAccessException
| IllegalArgumentException
| InvocationTargetException
| SecurityException e) {
throw new RuntimeException(e);
}
// use this utility to set BRJS so we catch any runtime errors thrown by model observers
PluginLocatorUtils.setBRJSForPlugins(brjs, objectList);
return objectList;
}
@Override
public void setBRJS(BRJS brjs) {
this.brjs = brjs;
logger = brjs.logger(LoggerType.APP_SERVER, this.getClass());
}