package lt.kompanija.filtrai;

import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import java.io.IOException;

@WebFilter("/*")
public class CharsetFilter implements Filter
{
    private String encoding;

    public void init(FilterConfig config) throws ServletException
    {
        encoding = config.getInitParameter("requestEncoding");
        if (encoding == null)
        {
            encoding = "UTF-8";
        }
    }

    public void doFilter(ServletRequest request, ServletResponse response, FilterChain next)
            throws IOException, ServletException
    {
        // Respect the client-specified character encoding
        // (see HTTP specification section 3.4.1)
        if (null == request.getCharacterEncoding())
        {
            request.setCharacterEncoding(encoding);
        }

        // Set the default response content type and encoding
        response.setContentType("text/html; charset=UTF-8");
        response.setCharacterEncoding("UTF-8");

        next.doFilter(request, response);
    }

    public void destroy()
    {
    }
}