/** Get the Plugin annotation for the class */
static Plugin getPluginMetadata(final Class<?> cls) throws PluginException {
// try to get plugin provider name
final String pluginname;
if (!cls.isAnnotationPresent(Plugin.class)) {
throw new PluginException("No Plugin annotation was found for the class: " + cls.getName());
}
final Plugin annotation = (Plugin) cls.getAnnotation(Plugin.class);
pluginname = annotation.name();
if (null == pluginname || "".equals(pluginname)) {
throw new PluginException(
"Plugin annotation 'name' cannot be empty for the class: " + cls.getName());
}
// get service name from annotation
final String servicename = annotation.service();
if (null == servicename || "".equals(servicename)) {
throw new PluginException(
"Plugin annotation 'service' cannot be empty for the class: " + cls.getName());
}
return annotation;
}
/** Return true if the ident matches the Plugin annotation for the class */
static ProviderIdent getProviderDeclaration(final Class<?> cls) throws PluginException {
final Plugin annotation = getPluginMetadata(cls);
return new ProviderIdent(annotation.service(), annotation.name());
}
/** Return true if the ident matches the Plugin annotation for the class */
static boolean matchesProviderDeclaration(final ProviderIdent ident, final Class<?> cls)
throws PluginException {
final Plugin annotation = getPluginMetadata(cls);
return ident.getFirst().equals(annotation.service())
&& ident.getSecond().equals(annotation.name());
}