@Override
public void doFilter(
ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain)
throws IOException, ServletException {
// Use the repose internal Wrapper to grab a response and modify it
MutableHttpServletRequest mutableRequest =
MutableHttpServletRequest.wrap((HttpServletRequest) servletRequest);
mutableRequest.setInputStream(servletRequest.getInputStream());
// Use a repose internal mutable response
MutableHttpServletResponse mutableResponse =
MutableHttpServletResponse.wrap(
(HttpServletRequest) servletRequest, (HttpServletResponse) servletResponse);
// Fire off the next one in the filter chain
filterChain.doFilter(mutableRequest, mutableResponse);
HttpServletRequest req = (HttpServletRequest) servletRequest;
// Print out info from request & response wrapper
LOG.debug("URI: " + req.getRequestURI());
LOG.debug("Status: " + mutableResponse.getStatus());
// I don't know why this doesn't work :(
LOG.debug("mutable content-type: " + mutableResponse.getContentType());
// I don't know why this doesn't work either :(
LOG.debug("regular content-type: " + servletRequest.getContentType());
LOG.debug("resp Header 'Content-Type: " + mutableResponse.getHeader("Content-Type"));
// THis is not reliable either. You'll have to check the body proper by getting the input stream
// and reading it
LOG.debug("Has body: " + mutableResponse.hasBody());
// Just a scanner to read in the entire content
String content = "";
Scanner s = new Scanner(mutableResponse.getInputStream()).useDelimiter("\\A");
if (s.hasNext()) {
content = s.next();
}
LOG.debug("Content Body: '" + content + "'");
// verify that the content is not empty.
if (content.isEmpty()) {
throw new RuntimeException("Content is empty");
}
// Make the changes to the body you want to do here, then commit it.
mutableResponse
.getWriter()
.write(
content
+ "<extra> Added by TestFilter, should also see the rest of the content </extra>");
mutableResponse
.commitBufferToServletOutputStream(); // THIS MUST BE CALLED HERE TO GET THE THINGS INTO THE
// BODY
}
@Override
public void applyTo(MutableHttpServletRequest request) {
if (requestHeaderManager().hasHeaders()) {
requestHeaderManager().applyTo(request);
}
if (requestUriQuery != null) {
request.setQueryString(requestUriQuery);
}
if (requestUri != null && StringUtilities.isNotBlank(requestUri)) {
request.setRequestUri(requestUri);
}
if (requestUrl != null && StringUtilities.isNotBlank(requestUrl.toString())) {
request.setRequestUrl(requestUrl);
}
for (RouteDestination dest : destinations) {
request.addDestination(dest);
}
}
