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package dk.thoerup.traininfoservice; |
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import java.util.logging.Logger; |
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import javax.servlet.ServletContext; |
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import javax.servlet.ServletContextEvent; |
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import javax.servlet.ServletContextListener; |
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import javax.servlet.ServletRegistration; |
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import javax.servlet.annotation.WebListener; |
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import dk.thoerup.webconfig.ConfigServlet; |
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import dk.thoerup.webconfig.ContextConfigLoader; |
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/** |
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* Application Lifecycle Listener implementation class JmxListener |
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* |
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*/ |
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@WebListener |
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public class SettingsListener implements ServletContextListener { |
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Logger logger = Logger.getLogger(SettingsListener.class.getName()); |
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/** |
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* @see ServletContextListener#contextInitialized(ServletContextEvent) |
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*/ |
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public void contextInitialized(ServletContextEvent sce) { |
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logger.warning("Context Init - Loading settings"); |
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ServletContext cxt = sce.getServletContext(); |
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TraininfoSettings settings = loadSettings(cxt); |
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ConfigServlet servlet = new ConfigServlet(); |
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servlet.setConfigObject( settings ); |
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ServletRegistration.Dynamic dynconf = cxt.addServlet("webconfig", servlet ); |
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dynconf.addMapping("/ConfigServlet"); |
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} |
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public static TraininfoSettings loadSettings(ServletContext cxt) { |
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TraininfoSettings settings = (TraininfoSettings) cxt.getAttribute("settings"); |
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if (settings != null) |
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return settings; |
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settings = new TraininfoSettings(); |
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new ContextConfigLoader(cxt).loadConfig(settings); |
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cxt.setAttribute("settings", settings); |
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return settings; |
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} |
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/** |
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* @see ServletContextListener#contextDestroyed(ServletContextEvent) |
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*/ |
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public void contextDestroyed(ServletContextEvent sce) { |
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} |
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} |