[jbossseam-issues] [JBoss JIRA] Closed: (JBSEAM-1610) Add log4j diagnostic context filter to Seam logging package

Add log4j diagnostic context filter to Seam logging package ----------------------------------------------------------- Key: JBSEAM-1610 URL: http://jira.jboss.com/jira/browse/JBSEAM-1610 Project: JBoss Seam Issue Type: Feature Request Components: Core Affects Versions: 2.0.0.BETA1 Reporter: Eric Trautman Assigned To: Gavin King Fix For: 2.0.0.CR1 Consider adding a web filter that populates the log4j mapped diagnostic context with the identity username. Thanks, Eric Trautman Here is an example of what I am currently using: /** * This filter adds the authenticated user name to the log4j * mapped diagnostic context so that it can be included in * formatted log output if desired. */ @Startup @Scope(ScopeType.APPLICATION) @Name("org.jboss.seam.web.loggingContextFilter") @Intercept(InterceptionType.NEVER) @Install public class LoggingContextFilter extends AbstractFilter { /** Identifier for the username "diagnostic context". */ public static final String USERNAME_CONTEXT = "username"; public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException { if (servletRequest instanceof HttpServletRequest) { HttpServletRequest req = (HttpServletRequest) servletRequest; if (matchesRequestPath(req)) { HttpSession session = req.getSession(); Object o = session.getAttribute("org.jboss.seam.security.identity"); if (o instanceof Identity) { Identity identity = (Identity) o; String username = identity.getUsername(); if (username != null) { MDC.put(USERNAME_CONTEXT, username); } } } } filterChain.doFilter(servletRequest, servletResponse); MDC.remove(USERNAME_CONTEXT); } }