I looked for the source code, at least on github, there's no tag for 7.0.55 defined (see [1])
How do I get access to a StandardContext? CAn I cast the Context object? [1]: https://github.com/apache/tomcat On Mon, Jun 30, 2014 at 4:51 AM, Mark Thomas <ma...@apache.org> wrote: > On 30/06/2014 01:27, John D. Ament wrote: >> I spoke a little too quickly, ServletContext is avilable from ctx >> (just didn't search hard enough). Adding the request listener here >> though results in: >> >> java.lang.NullPointerException >> >> at >> org.apache.catalina.core.ApplicationContext.createListener(ApplicationContext.java:1402) >> >> at >> org.apache.catalina.core.ApplicationContext.addListener(ApplicationContext.java:1307) >> >> at >> org.apache.catalina.core.ApplicationContextFacade.addListener(ApplicationContextFacade.java:636) > > A quick look in the source code will tell you why you are getting an NPE > here. > > You can't add a ServletRequestListener directly. There are a couple of > ways to do this. Probably the simplest is to create a > ServletContextListener, add that directly to Tomcat's StandardContext > with addApplicationLifecycleListener() and then from that > ServletContextListener add and request and/or session listeners from the > contextInitialized() event. > > You could also do this with a ServletContainerInitializer. > > Mark > > >> >> On Sun, Jun 29, 2014 at 8:21 PM, John D. Ament <john.d.am...@gmail.com> >> wrote: >>> Hi, >>> >>> I'm on Tomcat 7.0.54, though I would hope your APIs aren't volatile >>> enough that your internals should matter.. >>> >>> I tried this: >>> >>> Wrapper wrapper = >>> Tomcat.addServlet(ctx,"Greeter",GreeterServlet.class.getName()); >>> wrapper.addMapping("/*"); >>> wrapper.getServlet().getServletConfig().getServletContext().addListener(MyListener.class); >>> >>> This results in a NPE. This makes me think I don't have access to the >>> context yet. I would actually think it's somewhere in this chain: >>> >>> tomcat = new Tomcat(); >>> tomcat.setPort(8080); >>> File base = new File("target/webapp-runner"); >>> if(!base.exists()) { >>> base.mkdirs(); >>> } >>> Context ctx = tomcat.addContext("/",base.getAbsolutePath()); >>> >>> however, it doesn't look like Context here is a ServletContext. >>> >>> >>> On Sun, Jun 29, 2014 at 6:30 PM, Caldarale, Charles R >>> <chuck.caldar...@unisys.com> wrote: >>>>> From: John D. Ament [mailto:john.d.am...@gmail.com] >>>>> Subject: Embedded Tomcat question >>>> >>>>> Playing around a bit with embedded tomcat. It looks like there are >>>>> APIs to add all of the tomcat specific listeners, however how would I >>>>> add a ServletRequestListener? >>>> >>>> Look in the servlet spec for the version of Tomcat you're using (which you >>>> didn't mention), and the JavaDoc for ServletContext (e.g., addListener). >>>> >>>> - Chuck >>>> >>>> >>>> THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY >>>> MATERIAL and is thus for use only by the intended recipient. If you >>>> received this in error, please contact the sender and delete the e-mail >>>> and its attachments from all computers. >>>> >>>> >>>> --------------------------------------------------------------------- >>>> To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org >>>> For additional commands, e-mail: users-h...@tomcat.apache.org >>>> >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org >> For additional commands, e-mail: users-h...@tomcat.apache.org >> > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
