FilterChain.java 文件源码

public void add(final Class<? extends FilterReader> filterType, final Map<String, ?> properties) {
    transformers.add(new Transformer<Reader, Reader>() {
        public Reader transform(Reader original) {
            try {
                Constructor<? extends FilterReader> constructor = filterType.getConstructor(Reader.class);
                FilterReader result = constructor.newInstance(original);

                if (properties != null) {
                    ConfigureUtil.configureByMap(properties, result);
                }
                return result;
            } catch (Throwable th) {
                throw new InvalidUserDataException("Error - Invalid filter specification for " + filterType.getName(), th);
            }
        }
    });
}