/* 
 *  LogHttpSessionBindingEvent - Verify the Bound/Unbound of SessionBinding 
 *                               event (bug 4817526)
 */

package event_listeners;

import java.sql.*;
import javax.sql.*;
import javax.naming.*;
import java.io.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;

public class LogHttpSessionBindingEvent
    implements HttpSessionBindingListener {
    
    private static File baseDir = null;
    private PrintWriter logFileOut = null;
    private static final String logFileName = "LogHttpSessionBindingEvent.txt";
    
    public void valueBound(HttpSessionBindingEvent event) {
        HttpSession session = event.getSession();
        try {
            if (baseDir == null) {
                ServletContext context = session.getServletContext();
                baseDir = (File) context.getAttribute(
                    "javax.servlet.context.tempdir");
                logFileOut = new PrintWriter(new FileWriter(
                    new File(baseDir, logFileName)), true);
            }
            Context context = 
                (Context) new InitialContext().lookup("java:comp/env");
            logFileOut.println("[LogHttpSessionBindingEvent.valueBound()]: " +
                               "InitialContext.lookup(\"java:comp/env\") OK");
            DataSource pool = (DataSource) context.lookup("jdbc/jdbc-simple");
            logFileOut.println("[LogHttpSessionBindingEvent.valueBound()]: " +
                               "context.lookup(\"jdbc/jdbc-simple\") OK");
            Connection connection = pool.getConnection();
            logFileOut.println("[LogHttpSessionBindingEvent.valueBound()]: " +
                               "pool.getConnection() OK");
            PreparedStatement statement = 
                connection.prepareStatement("INSERT INTO LOGGING (namevalue, sessid) values (?,?)");
            statement.setString(1, "Bound");
            statement.setString(2, (String) session.getId());
            statement.executeUpdate();
            logFileOut.println("[LogHttpSessionBindingEvent.valueBound()]: " +
                               "statement.executeUpdate() OK");
            connection.close();
            logFileOut.close();
            baseDir = null;
        } catch (Exception e) {
            System.out.println("[LogHttpSessionBindingEvent.valueBound()]: " +
                               "*** EXCEPTION -> " + e);
            e.printStackTrace(System.out);
        }
    }
    
    public void valueUnbound(HttpSessionBindingEvent event) {
        HttpSession session = event.getSession();
        try {
            if (baseDir == null) {
                ServletContext context = session.getServletContext();
                baseDir = (File) context.getAttribute(
                    "javax.servlet.context.tempdir");
                logFileOut = new PrintWriter(new FileWriter(
                    new File(baseDir, logFileName)), true);
            }
            Context context = 
                (Context) new InitialContext().lookup("java:comp/env");
            logFileOut.println("[LogHttpSessionBindingEvent.valueUnbound()]: "
                               + "InitialContext.lookup(\"java:comp/env\") " +
                               "OK");
            DataSource pool = (DataSource) context.lookup("jdbc/jdbc-simple");
            logFileOut.println("[LogHttpSessionBindingEvent.valueUnbound()]: "
                               + "context.lookup(\"jdbc/jdbc-simple\") OK");
            Connection connection = pool.getConnection();
            logFileOut.println("[LogHttpSessionBindingEvent.valueUnbound()]: "
                               + "pool.getConnection() OK");
            PreparedStatement statement = 
                connection.prepareStatement("UPDATE LOGGING SET namevalue = ? WHERE sessid = ?");
            statement.setString(1, "Unbound");
            statement.setString(2, (String) session.getId());
            statement.executeUpdate();
            logFileOut.println("[LogHttpSessionBindingEvent.valueBound()]: " +
                               "statement.executeUpdate() OK");
            connection.close();
            logFileOut.close();
            baseDir = null;
        } catch (Exception e) {
            System.out.println("[LogHttpSessionBindingEvent.valueUnbound()]: " +
                               "*** EXCEPTION -> " + e);
            e.printStackTrace(System.out);
        }
    }
    
}