Question

I have a little problem figuring this out the right way.

I have a Java application reading a log file continuously using threads. While that application is still reading the log file, a client should be able to query the current status (i.e. a certain key was found in the log file) through a java servlet.

My current issue is that I am having problems getting that status using the doGet-Method of the servlet. WHile running the thread is supposed to change a single boolean variable.

My question is:

How do I get the Log Reader Thread to start running when I deploy the Servlet on my Tomcat. In idle mode the Log Reader is listening for new files in a folder and starts to read them once they appear?

Answer 1

Please check below link you can use SevletcontexListener

In SevletcontexListener you can start you logger

Link

public void contextInitialized(ServletContextEvent servletContextEvent) 
    {
          System.out.println("ServletContextListener started"); 
         //start thread here
    }
public void contextDestroyed(ServletContextEvent servletContextEvent) {
     //stop thread here
}