D-Net

package eu.dnetlib.utils;

import javax.servlet.ServletContextEvent;

import javax.servlet.ServletContextListener;

import org.apache.log4j.Logger;

/**

 * A simple context listener that reads the servlet context and sets the context

 * path as a system property. 

 * 

 * @author antleb

 *

 */

public class ContextPathReader implements ServletContextListener {

	private static Logger logger = Logger.getLogger(ContextPathReader.class);

	public void contextDestroyed(ServletContextEvent arg0) {

		// doing nothing

	}

	public void contextInitialized(ServletContextEvent event) {

		try {

			String propertyName = event.getServletContext().getInitParameter("applicationContextProperty");

			String path = event.getServletContext().getContextPath();

			if (propertyName == null)

				propertyName = "driver.service.context";

			logger.debug("Web application path: " + path + " (in property '" + propertyName + "')");

			if (path.startsWith("/"))

				path = path.substring(1);

			System.setProperty("driver.service.context", path);

		} catch (Exception e) {

			logger.error("Error reading application context path", e);

		}

	}

}