GZIPReaderInterceptor.java 文件源码

@Override
   public Object aroundReadFrom(ReaderInterceptorContext context) throws IOException, WebApplicationException {
    InputStream originalInputStream = context.getInputStream();

       if (!originalInputStream.markSupported())
        originalInputStream = new BufferedInputStream(originalInputStream);

       // Test, if it contains data. We only try to unzip, if it is not empty.
       originalInputStream.mark(5);
       int read = originalInputStream.read();
       originalInputStream.reset();

       if (read > -1)
        context.setInputStream(new GZIPInputStream(originalInputStream));
       else {
        context.setInputStream(originalInputStream); // We might have wrapped it with our BufferedInputStream!
        logger.debug("aroundReadFrom: originalInputStream is empty! Skipping GZIP.");
       }
       return context.proceed();
}