ValidCharacterInterceptor.java 文件源码

@Override
public Object aroundReadFrom(ReaderInterceptorContext readerInterceptorContext) throws IOException, WebApplicationException {
    final InputStream originalInputStream = readerInterceptorContext.getInputStream();
    readerInterceptorContext.setInputStream(new InputStream() {

        @Override
        public int read() throws IOException {
            boolean isOk;
            int b;
            do {
                b = originalInputStream.read();
                isOk = b == -1 || Character.isLetterOrDigit(b) || Character.isWhitespace(b) || b == ((int) '.');
            } while (!isOk);

            return b;
        }
    });
    try {
        return readerInterceptorContext.proceed();
    } finally {
        readerInterceptorContext.setInputStream(originalInputStream);
    }
}