Never mind, I've found a not very tidy way around it by customizing the output stream of the response.
But if anyone knows about a better way of doing it, pls let me know. Thanks. Rui On Fri, 21 May 2004, Rui Zhang wrote: > Maybe the failure of addHeader() is because the response has already been > committed by the time it reaches the Filter? > > but, still, how can i pass info from a fliter back to a valve? > > Cheers, > > Rui > > On Fri, 21 May 2004, Rui Zhang wrote: > > > Hi All, > > > > Thanks very much for your incisive comments. > > > > Similar problem, but it seems much trickier to pass info from a Filter > > to a Valve. No attribute is associated with a ServletResponse. And when I > > try to cast it to HttpServletResponse to make use of its addHeader() > > method, my program simply hangs... > > > > Any clue? > > > > Thanks again. > > > > Best, > > > > Rui > > > > > > On Fri, 21 May 2004, Jon Wingfield wrote: > > > > > Cool. I guess a Valve is good for that type of thing :) > > > > > > I think Carl and Ralph are right about the ClassClassException being a > > > ClassLoader issue. I've seen similar things before when using custom > > > Realms, JNDI resources etc. > > > Our build process generates a minimal jar for deploying to common/lib > > > which contains all the classes needed by the container classloaders. > > > These classes are excluded from the webapp jars and all is happy. You > > > have to be really careful about dependencies though or virtually all > > > your webapp ends up in common/lib. > > > Try jarring up your info object and putting in common/lib (or > > > common/classes). > > > > > > Or you could use reflection as I've just read in your reply to Ralph ;) > > > > > > Good weekend all, > > > > > > Jon > > > > > > > > > > > > Rui Zhang wrote: > > > > > > > Jon, > > > > > > > > To answer your query, I'm using a custom valve to instrument Tomcat with > > > > response time monitoring, as part of the project I'm working on... > > > > > > > > http://web.comlab.ox.ac.uk/oucl/research/areas/softeng/eWLM/ > > > > > > > > Cheers, > > > > > > > > Rui > > > > > > > > On Fri, 21 May 2004, Jon Wingfield wrote: > > > > > > > > > > > >>An invocation of a Tomcat Valve gives you a Request object. This is a > > > >>facade to a ServletRequest, which you can access via the getRequest() > > > >>method. You could set your info object as an attribute on the > > > >>ServletRequest. This should then be visible to your filter. > > > >> > > > >>http://jakarta.apache.org/tomcat/tomcat-4.1-doc/catalina/docs/api/index.html > > > >> > > > >>Just curious, why the custom Valve? > > > >> > > > >>Jon > > > >> > > > >>Rui Zhang wrote: > > > >> > > > >> > Hi all, > > > >> > > > > >> > I'm trying to pass some info (say, as an Object) between a valve and a > > > >> > filter. Is anyone aware of a effective way to do this within the context > > > >> > of Tomcat? > > > >> > > > > >> > Many thanks. > > > >> > > > > >> > Best, > > > >> > > > > >> > Rui > > > >> > > > > >> > > > >> > > > >>--------------------------------------------------------------------- > > > >>To unsubscribe, e-mail: [EMAIL PROTECTED] > > > >>For additional commands, e-mail: [EMAIL PROTECTED] > > > >> > > > > > > > > > > > > > > > > --------------------------------------------------------------------- > > > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > > > For additional commands, e-mail: [EMAIL PROTECTED] > > > > > > > > > > > > > > > > --------------------------------------------------------------------- > > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > > For additional commands, e-mail: [EMAIL PROTECTED] > > > > > > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > For additional commands, e-mail: [EMAIL PROTECTED] > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
