public static boolean isSupported(String scheme) {
Assertions.notNull(scheme, SCHEME_PARAM);
debug(CHECKING_SUPPORT_FOR_CUSTOM_PROTOCOL, scheme);
boolean result = Loader.SINGLETON.getHandler(scheme, false) != null;
debug("Protocol '%s' is %s.", scheme, result ? "supported" : "not supported");
return result;
}
public static <T extends URLStreamHandler> boolean addProvider(Class<T> handlerClass) {
Assertions.notNull(handlerClass, "handlerClass");
if (!"Handler".equals(handlerClass.getSimpleName())) {
throw new IllegalArgumentException(
"Handler class '"
+ handlerClass.getCanonicalName()
+ "' is not a valid URLStreamHandler class: name does meet specification");
}
String protocolPackage = handlerClass.getPackage().getName();
int pointBreak = protocolPackage.lastIndexOf('.');
String providerPackage = protocolPackage.substring(0, pointBreak);
String scheme = protocolPackage.substring(pointBreak + 1);
return Loader.SINGLETON.addProvider(providerPackage, scheme);
}
public static URLStreamHandler getHandler(String scheme) {
Assertions.notNull(scheme, SCHEME_PARAM);
return Loader.SINGLETON.getHandler(scheme, true);
}