teichmann@5861: /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
teichmann@5861:  * Software engineering by Intevation GmbH
teichmann@5861:  *
teichmann@5861:  * This file is Free Software under the GNU AGPL (>=v3) 
teichmann@5861:  * and comes with ABSOLUTELY NO WARRANTY! Check out the
teichmann@5861:  * documentation coming with Dive4Elements River for details. 
teichmann@5861:  */
teichmann@5861: 
teichmann@5835: package org.dive4elements.river.client.server;
bjoern@3478: 
bjoern@3478: import java.io.IOException;
bjoern@3478: 
bjoern@3478: import javax.servlet.ServletContext;
bjoern@3478: import javax.servlet.ServletContextEvent;
bjoern@3478: import javax.servlet.ServletContextListener;
bjoern@3478: 
bjoern@3478: import org.apache.log4j.Logger;
bjoern@3478: 
teichmann@5835: import org.dive4elements.river.client.server.LoggingConfigurator;
teichmann@5835: import org.dive4elements.river.client.server.features.Features;
teichmann@5835: import org.dive4elements.river.client.server.features.XMLFileFeatures;
bjoern@3478: 
bjoern@3478: /**
bjoern@3478:  * ServletContextListenter to initalize the Features globally for
bjoern@3478:  * all Servlets
bjoern@3478:  */
bjoern@3478: public class BaseServletContextListener implements ServletContextListener {
bjoern@3478: 
bjoern@3478:     public static final String LOG4J_PROPERTIES = "FLYS_CLIENT_LOG4J_PROPERIES";
bjoern@3478: 
bjoern@3478:     public static final Logger logger = Logger.getLogger(BaseServletContextListener.class);
bjoern@3478: 
bjoern@3478:     @Override
bjoern@3478:     public void  contextInitialized(ServletContextEvent sce) {
bjoern@3478:         ServletContext sc = sce.getServletContext();
bjoern@3478: 
bjoern@3478:         this.initLogging(sc);
bjoern@3478: 
bjoern@3478:         String filename = sc.getInitParameter("features-file");
bjoern@3478: 
bjoern@3478:         logger.debug("Initializing ServletContext");
bjoern@3478:         try {
bjoern@3478:             XMLFileFeatures features = new XMLFileFeatures(sc.getRealPath(filename));
bjoern@3478:             sc.setAttribute(Features.CONTEXT_ATTRIBUTE, features);
bjoern@3478:         } catch(IOException e) {
bjoern@3478:             logger.error(e);
bjoern@3478:         }
bjoern@3478:     }
bjoern@3478: 
bjoern@3478:     @Override
bjoern@3478:     public void contextDestroyed(ServletContextEvent sce) {
bjoern@3478:         //DO NOTHING
bjoern@3478:     }
bjoern@3478: 
bjoern@3478: 
bjoern@3478:     private void initLogging(ServletContext sc) {
bjoern@3478:         String log4jProperties = System.getenv(LOG4J_PROPERTIES);
bjoern@3478: 
bjoern@3478:         if (log4jProperties == null || log4jProperties.length() == 0) {
bjoern@3478:             String file = sc.getInitParameter("log4j-properties");
bjoern@3478: 
bjoern@3478:             if (file != null && file.length() > 0) {
bjoern@3478:                 log4jProperties = sc.getRealPath(file);
bjoern@3478:             }
bjoern@3478:         }
bjoern@3478:         System.out.println(log4jProperties);
bjoern@3478: 
bjoern@3478:         LoggingConfigurator.init(log4jProperties);
bjoern@3478:     }
bjoern@3478: }