TransformationFactory.java 文件源码

public Transformation create(String name, List<List<Extension.Parameter>> preferences,
        boolean isServer) {
    if (PerMessageDeflate.NAME.equals(name)) {
        return PerMessageDeflate.negotiate(preferences, isServer);
    }
    if (Constants.ALLOW_UNSUPPORTED_EXTENSIONS) {
        return null;
    } else {
        throw new IllegalArgumentException(
                sm.getString("transformerFactory.unsupportedExtension", name));
    }
}