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;
import dk.thoerup.webconfig.ContextConfigLoader;


/**
 * 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();
                new ContextConfigLoader(cxt).loadConfig(settings);

                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	1345	import dk.thoerup.webconfig.ContextConfigLoader;
13	torben	1303
14
15	torben	1320
16	torben	1303	/**
17			* Application Lifecycle Listener implementation class JmxListener
18			*
19			*/
20			@WebListener
21			public class SettingsListener implements ServletContextListener {
22
23			Logger logger = Logger.getLogger(SettingsListener.class.getName());
24
25
26			/**
27			* @see ServletContextListener#contextInitialized(ServletContextEvent)
28			*/
29			public void contextInitialized(ServletContextEvent sce) {
30			logger.warning("Context Init - Loading settings");
31
32			ServletContext cxt = sce.getServletContext();
33	torben	1320	TraininfoSettings settings = loadSettings(cxt);
34
35
36			ConfigServlet servlet = new ConfigServlet();
37			servlet.setConfigObject( settings );
38			ServletRegistration.Dynamic dynconf = cxt.addServlet("webconfig", servlet );
39			dynconf.addMapping("/ConfigServlet");
40	torben	1303
41	torben	1316	}
42
43			public static TraininfoSettings loadSettings(ServletContext cxt) {
44			TraininfoSettings settings = (TraininfoSettings) cxt.getAttribute("settings");
45			if (settings != null)
46			return settings;
47
48	torben	1345	settings = new TraininfoSettings();
49			new ContextConfigLoader(cxt).loadConfig(settings);
50	torben	1303
51	torben	1316	cxt.setAttribute("settings", settings);
52
53			return settings;
54	torben	1303	}
55
56			/**
57			* @see ServletContextListener#contextDestroyed(ServletContextEvent)
58			*/
59			public void contextDestroyed(ServletContextEvent sce) {
60			}
61
62			}