package filter;

import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;

/**
 * Servlet Filter implementation class Encooding
 */
public class Encooding implements Filter {

    /**
     * Default constructor. 
     */
    public Encooding() {
        // TODO Auto-generated constructor stub
    }

	/**
	 * @see Filter#destroy()
	 */
	public void destroy() {
		// TODO Auto-generated method stub
	}

	/**
	 * @see Filter#doFilter(ServletRequest, ServletResponse, FilterChain)
	 */
	public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
		String encooding=context.getInitParameter("encooding");
		request.setCharacterEncoding(encooding);
		response.setContentType("text/html;charset="+encooding);
		chain.doFilter(request, response);
	}

	/**
	 * @see Filter#init(FilterConfig)
	 */
	ServletContext context;
	public void init(FilterConfig fConfig) throws ServletException {
		context=fConfig.getServletContext();
	}

}