InitializeLeagues.java

gistfile1.txt

package io.pivotal.workshop.web;

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.LinkedList;
import java.util.List;

import javax.servlet.ServletContext;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;

import io.pivotal.workshop.model.League;

/**
 * Application Lifecycle Listener implementation class InitializeLeagues
 *
 */
public class InitializeLeagues implements ServletContextListener {

	/**
     * @see ServletContextListener#contextDestroyed(ServletContextEvent)
     */
    public void contextDestroyed(ServletContextEvent arg0)  { 
         // TODO Auto-generated method stub
    }

	/**
     * @see ServletContextListener#contextInitialized(ServletContextEvent)
     */
    public void contextInitialized(ServletContextEvent event)  { 
    	ServletContext context = event.getServletContext();
    	 List leagueList = new LinkedList();
    	 String leaguesFile = context.getInitParameter("leagues-file");
    	 InputStream is = null;
    	 BufferedReader reader = null;
    	 
    	 try {
    		  is = context.getResourceAsStream(leaguesFile);
    		  reader = new BufferedReader(new InputStreamReader(is));
    		  String record;
    		 
    		  // Read every record (one per line)
    		  while ( (record = reader.readLine()) != null ) {
    		  String[] fields = record.split("\t");
    		 
    		  // Extract the data fields for the record
    		  int year = Integer.parseInt(fields[0]);
    		  String season = fields[1];
    		  String title = fields[2];
    		 
    		  // Add the new League item to the list
    		  League item = new League(year, season, title);
    		  leagueList.add(item);
    		  }
    		  context.setAttribute("leagueList", leagueList);
    		  
    		   context.log("The league list has been loaded.");
    		  
    		   } catch (Exception e) {
    		   context.log("Exception occured while processing the leagues file.", e);
    		  
    		   } finally {
    		  if ( is != null ) {
    		   try { is.close(); } catch (Exception e) {}
    		   }
    		   if ( reader != null ) {
    		   try { reader.close(); } catch (Exception e) {}
    		   }
    		   }
    		  
    		   } // END of contextInitialized
}