/**
* Method description
*
* @param request
* @param response
* @param chain
* @throws IOException
* @throws ServletException
*/
@Override
protected void doFilter(
HttpServletRequest request, HttpServletResponse response, FilterChain chain)
throws IOException, ServletException {
if (WebUtil.isGzipSupported(request)) {
GZipResponseWrapper wrappedResponse = new GZipResponseWrapper(response);
chain.doFilter(request, wrappedResponse);
wrappedResponse.finishResponse();
} else {
chain.doFilter(request, response);
}
}
/** {@inheritDoc} */
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
throws IOException, ServletException {
if (request instanceof HttpServletRequest && response instanceof HttpServletResponse) {
HttpServletRequest httpRequest = (HttpServletRequest) request;
HttpServletResponse httpResponse = (HttpServletResponse) response;
String acceptEncoding = httpRequest.getHeader("accept-encoding");
if (acceptEncoding != null && acceptEncoding.contains("gzip")) {
httpResponse.addHeader("Accept-Encoding", "gzip");
httpResponse.addHeader("Vary", "Accept-Encoding");
GZipResponseWrapper wrappedResponse = new GZipResponseWrapper(httpResponse);
chain.doFilter(request, wrappedResponse);
wrappedResponse.finishResponse();
return;
}
}
chain.doFilter(request, response);
}