Filter for logging request content?

Hi all,

I want to build a logging filter that does not only log the user/method/url
but also the content of the request (i.e. for PUT requests).

I easily can extract the content of the request via getReader().
The problem is that I always get:
java.lang.IllegalStateException: getReader() has already been called for
this request

I already tried to create a RequestWrapper (see below) but the getReader()
method of my wrapper never gets called and I still get the above exception.
Unfortunately I don't have access to the source code of the called servlet.

Am I doing something wrong?
Does anybody have a possible reason/solution?

Any hint is much appreciated

Guido



    chain.doFilter(new BodyWrapper((HttpServletRequest)request, body),
response);
    // body is a String containing the body of the request

}
private class BodyWrapper extends HttpServletRequestWrapper {
    private String body;
    private BodyWrapper(HttpServletRequest req, String bo) {
        super(req);
        body = bo;
    }
    public BufferedReader getReader()
    throws java.io.IOException {
        System.out.println("BodyWrapper.getReader() called");
        return new BufferedReader(new StringReader(body));
    }
}

___________________________________________________________________________
To unsubscribe, send email to [email protected] and include in the body
of the message "signoff SERVLET-INTEREST".

Archives: http://archives.java.sun.com/archives/servlet-interest.html
Resources: http://java.sun.com/products/servlet/external-resources.html
LISTSERV Help: http://www.lsoft.com/manuals/user/user.html