Mercurial > dive4elements > river
view flys-client/src/main/java/de/intevation/flys/client/server/BaseServletContextListener.java @ 4421:0b0f415203f0
Add new Filter class to change caching
Add new Filter class to avoid caching of GWT nocache files in browsers and http
proxies. The new Filter class NoCacheFilter sets http headers to stop the
proxies and browesers from storing the nocache files.
author | Björn Ricks <bjoern.ricks@intevation.de> |
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date | Tue, 06 Nov 2012 13:32:06 +0100 |
parents | 763789a9acca |
children |
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package de.intevation.flys.client.server; import java.io.IOException; import javax.servlet.ServletContext; import javax.servlet.ServletContextEvent; import javax.servlet.ServletContextListener; import org.apache.log4j.Logger; import de.intevation.flys.client.server.LoggingConfigurator; import de.intevation.flys.client.server.features.Features; import de.intevation.flys.client.server.features.XMLFileFeatures; /** * ServletContextListenter to initalize the Features globally for * all Servlets */ public class BaseServletContextListener implements ServletContextListener { public static final String LOG4J_PROPERTIES = "FLYS_CLIENT_LOG4J_PROPERIES"; public static final Logger logger = Logger.getLogger(BaseServletContextListener.class); @Override public void contextInitialized(ServletContextEvent sce) { ServletContext sc = sce.getServletContext(); this.initLogging(sc); String filename = sc.getInitParameter("features-file"); logger.debug("Initializing ServletContext"); try { XMLFileFeatures features = new XMLFileFeatures(sc.getRealPath(filename)); sc.setAttribute(Features.CONTEXT_ATTRIBUTE, features); } catch(IOException e) { logger.error(e); } } @Override public void contextDestroyed(ServletContextEvent sce) { //DO NOTHING } private void initLogging(ServletContext sc) { String log4jProperties = System.getenv(LOG4J_PROPERTIES); if (log4jProperties == null || log4jProperties.length() == 0) { String file = sc.getInitParameter("log4j-properties"); if (file != null && file.length() > 0) { log4jProperties = sc.getRealPath(file); } } System.out.println(log4jProperties); LoggingConfigurator.init(log4jProperties); } }