Package com.wavemaker.runtime.web.servlet

Class MdcAwareServletWrapper

java.lang.Object

com.wavemaker.runtime.web.servlet.MdcAwareServletWrapper

All Implemented Interfaces:

jakarta.servlet.Servlet

public class MdcAwareServletWrapper
extends Object
implements jakarta.servlet.Servlet

A load-on-startup servlet's init() is called by the container after all ServletContextListeners have returned, so it runs outside any listener's or filter's wm.app.name MDC scope and its logs would otherwise go unattributed (missing from the per-app log file). This wrapper sets wm.app.name around delegate.init() without needing to modify the delegate servlet's own source (needed since DispatcherServlet is a third-party class). The same gap exists in reverse on undeploy: the container calls servlet destroy() before running any listener's contextDestroyed(), so destroy() is wrapped the same way, using the context path captured at init() time since destroy() isn't given a ServletConfig.

Constructor Summary

Constructors

Constructor	Description
MdcAwareServletWrapper(jakarta.servlet.Servlet delegate)

Method Summary

Modifier and Type	Method	Description
void	destroy()
jakarta.servlet.ServletConfig	getServletConfig()
String	getServletInfo()
void	init(jakarta.servlet.ServletConfig config)
void	service(jakarta.servlet.ServletRequest req, jakarta.servlet.ServletResponse res)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

MdcAwareServletWrapper

public MdcAwareServletWrapper(jakarta.servlet.Servlet delegate)

Method Details

init

public void init(jakarta.servlet.ServletConfig config)
          throws jakarta.servlet.ServletException

Specified by:

init in interface jakarta.servlet.Servlet

Throws:

jakarta.servlet.ServletException

getServletConfig

public jakarta.servlet.ServletConfig getServletConfig()

Specified by:

getServletConfig in interface jakarta.servlet.Servlet

service

public void service(jakarta.servlet.ServletRequest req,
 jakarta.servlet.ServletResponse res)
             throws jakarta.servlet.ServletException,
IOException

Specified by:

service in interface jakarta.servlet.Servlet

Throws:

jakarta.servlet.ServletException

IOException

getServletInfo

public String getServletInfo()

Specified by:

getServletInfo in interface jakarta.servlet.Servlet

destroy

public void destroy()

Specified by:

destroy in interface jakarta.servlet.Servlet