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java.lang.Object
   |
   +----javax.servlet.GenericServlet
           |
           +----javax.servlet.http.HttpServlet
                   |
                   +----kh.servlet.BaseServlet

Summary

public class  BaseServlet
     extends javax.servlet.http.HttpServlet
{
          // Constructors 1
     public BaseServlet();

          // Methods 7
     public static void dumpParameters(ServletRequest);
     public static void inheritParameters(StreamReplacement, ServletRequest);
     protected static void setMessage(StreamReplacement, Object);

     public String getServletInfo();
     protected void reportTooLarge(HttpServletResponse) throws IOException;
     protected void sendPage(InputStream, StreamReplacement, HttpServletResponse) throws ServletException, IOException;
     protected void sendPage(URL, StreamReplacement, HttpServletResponse) throws ServletException, IOException;
}

Cross Reference

Extended By:

BasicWrapper

   public BaseServlet() 

Default constructor

   public static void dumpParameters(ServletRequest in) 

Print parameters - a useful diagnostic routine

   public String getServletInfo() 

Tell the world about ourselves. Subclasses should override this function to include copyright etc...

Returns:

"Author: kevinh@geeksville.com"

Overrides:

getServletInfo in class GenericServlet

Implements:

getServletInfo in interface Servlet

   public static void inheritParameters(StreamReplacement out, 
                                        ServletRequest in) 

Converts parameters into replacement tokens

   protected void reportTooLarge(HttpServletResponse res)  throws IOException

We validate the size of POSTs to prevent denial of service attacks. This routine prints the error message to the response stream.

Parameter	Description
res	the place to send our prepackaged response

   protected void sendPage(InputStream instream, 
                           StreamReplacement repSet, 
                           HttpServletResponse res)  throws ServletException, IOException

Using the specified replacement set, send the template file as a response.

This method also adds a replacement: "date" will be replaced with the current date.

Parameter	Description
instream	the source file
repSet	the set of replacements to apply, or null for no replacements
res	the response this method generates

   protected void sendPage(URL path, 
                           StreamReplacement repSet, 
                           HttpServletResponse res)  throws ServletException, IOException

Using the specified replacement set, send the template file as a response.

This method also adds a replacement: "date" will be replaced with the current date.

Parameter	Description
path	the location of the source file
repSet	the set of replacements to apply
res	the response this method generates

   protected static void setMessage(StreamReplacement replace, 
                                    Object value) 

Changes the message line. By convention the message line on each form is named "warning".

Parameter	Description
replace	the replacement set to change
value	the new value for the "warning" replacement

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