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