JndiFilter.java Source code

Introduction

Here is the source code for JndiFilter.java

Source

import java.io.IOException;

import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;

public class JndiFilter implements Filter {

    private FilterConfig config;

    private Context env;

    public JndiFilter() {
    }

    public void init(FilterConfig filterConfig) throws ServletException {

        this.config = filterConfig;

        try {

            env = (Context) new InitialContext();

        } catch (NamingException ne) {

            throw new ServletException(ne);

        }

    }

    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
            throws IOException, ServletException {

        javax.mail.Session mailSession = null;

        try {

            mailSession = (javax.mail.Session) env.lookup("MyEmail");

        } catch (NamingException ne) {
        }

        HttpServletRequest hRequest = null;

        if (request instanceof HttpServletRequest) {

            hRequest = (HttpServletRequest) request;

            HttpSession hSession = hRequest.getSession();

            if (hSession != null)
                hSession.setAttribute("MyEmail", mailSession);

        } //if

        chain.doFilter(request, response);

    }// doFilter

    public void destroy() {
        /*
         * called before the Filter instance is removed from service by the web
         * container
         */
    }

}