import javax.servlet.*;
import java.util.Enumeration;
import java.io.IOException;

public class RequestDemoServlet implements Servlet {

  public void init(ServletConfig config) throws ServletException {
  }

  public void destroy() {
  }

  public void service(ServletRequest request, ServletResponse response) 
    throws ServletException, IOException {

    System.out.println("Server Port: " + request.getServerPort());
    System.out.println("Server Name: " + request.getServerName());
    System.out.println("Protocol: " + request.getProtocol());
    System.out.println("Character Encoding: " + 
      request.getCharacterEncoding());
    System.out.println("Content Type: " + request.getContentType());
    System.out.println("Content Length: " + request.getContentLength());
    System.out.println("Remote Address: " + request.getRemoteAddr());
    System.out.println("Remote Host: " + request.getRemoteHost());
    System.out.println("Scheme: " + request.getScheme());
    Enumeration parameters = request.getParameterNames();
    while (parameters.hasMoreElements()) {
      String parameterName = (String) parameters.nextElement();
      System.out.println("Parameter Name: " + parameterName);
      System.out.println("Parameter Value: " +
        request.getParameter(parameterName));
    }
    Enumeration attributes = request.getAttributeNames();
    while (attributes.hasMoreElements()) {
      String attribute = (String) attributes.nextElement();
      System.out.println("Attribute name: " + attribute);
      System.out.println("Attribute value: " +
        request.getAttribute(attribute));
    }
  }

  public String getServletInfo() {
    return null;
  }

  public ServletConfig getServletConfig() {
    return null;
  }

}