thoerup/traininfoservice/SettingsListener.java

package dk.thoerup.traininfoservice;

import java.util.logging.Logger;

import javax.servlet.ServletContext;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
import javax.servlet.ServletRegistration;
import javax.servlet.annotation.WebListener;

import dk.thoerup.webconfig.ConfigServlet;


/**
 * Application Lifecycle Listener implementation class JmxListener
 *
 */
@WebListener
public class SettingsListener implements ServletContextListener {

        Logger logger = Logger.getLogger(SettingsListener.class.getName());


        /**
     * @see ServletContextListener#contextInitialized(ServletContextEvent)
     */
    public void contextInitialized(ServletContextEvent sce) {
        logger.warning("Context Init - Loading settings");

                ServletContext cxt = sce.getServletContext();
                TraininfoSettings settings = loadSettings(cxt);
                
                
                ConfigServlet servlet = new ConfigServlet();
                servlet.setConfigObject( settings );
                ServletRegistration.Dynamic dynconf = cxt.addServlet("webconfig", servlet );
                dynconf.addMapping("/ConfigServlet");

    }
    
    public static TraininfoSettings loadSettings(ServletContext cxt) {
        TraininfoSettings settings = (TraininfoSettings) cxt.getAttribute("settings"); 
        if (settings != null)  
                return settings;
        
                settings = new TraininfoSettings(cxt);
                settings.reloadConfig();

                cxt.setAttribute("settings", settings);
                
                return settings;
    }

        /**
     * @see ServletContextListener#contextDestroyed(ServletContextEvent)
     */
    public void contextDestroyed(ServletContextEvent sce) {
    }
        
}
1	torben	1303	package dk.thoerup.traininfoservice;
2
3			import java.util.logging.Logger;
4
5			import javax.servlet.ServletContext;
6			import javax.servlet.ServletContextEvent;
7			import javax.servlet.ServletContextListener;
8	torben	1320	import javax.servlet.ServletRegistration;
9	torben	1303	import javax.servlet.annotation.WebListener;
10
11	torben	1320	import dk.thoerup.webconfig.ConfigServlet;
12	torben	1303
13
14	torben	1320
15	torben	1303	/**
16			* Application Lifecycle Listener implementation class JmxListener
17			*
18			*/
19			@WebListener
20			public class SettingsListener implements ServletContextListener {
21
22			Logger logger = Logger.getLogger(SettingsListener.class.getName());
23
24
25			/**
26			* @see ServletContextListener#contextInitialized(ServletContextEvent)
27			*/
28			public void contextInitialized(ServletContextEvent sce) {
29			logger.warning("Context Init - Loading settings");
30
31			ServletContext cxt = sce.getServletContext();
32	torben	1320	TraininfoSettings settings = loadSettings(cxt);
33
34
35			ConfigServlet servlet = new ConfigServlet();
36			servlet.setConfigObject( settings );
37			ServletRegistration.Dynamic dynconf = cxt.addServlet("webconfig", servlet );
38			dynconf.addMapping("/ConfigServlet");
39	torben	1303
40	torben	1316	}
41
42			public static TraininfoSettings loadSettings(ServletContext cxt) {
43			TraininfoSettings settings = (TraininfoSettings) cxt.getAttribute("settings");
44			if (settings != null)
45			return settings;
46
47	torben	1340	settings = new TraininfoSettings(cxt);
48			settings.reloadConfig();
49	torben	1303
50	torben	1316	cxt.setAttribute("settings", settings);
51
52			return settings;
53	torben	1303	}
54
55			/**
56			* @see ServletContextListener#contextDestroyed(ServletContextEvent)
57			*/
58			public void contextDestroyed(ServletContextEvent sce) {
59			}
60
61			}