fc.web.servlet
Class PathServlet

java.lang.Object
  javax.servlet.GenericServlet
      javax.servlet.http.HttpServlet
          fc.web.servlet.PathServlet

All Implemented Interfaces:

Serializable, javax.servlet.Servlet, javax.servlet.ServletConfig

public abstract class PathServlet
extends javax.servlet.http.HttpServlet

A convenient base class for servlets that use path info (must be path mapped; extension mapped servlets (like *.mp) do not have any path info associated with them.

If the request has a non-null non-empty path, then that path is sent to the doPathInfo method, which a subclass should implement. A request with an empty or null path info results in sending a 404 error back to the client.

See Also:

Serialized Form

Constructor Summary

PathServlet()

Method Summary

void	doGet(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse res)
abstract void	doPathInfo(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse res, String pathinfo) The pathinfo parameter is not intern()'ed but can be if/as needed in this method.
void	doPost(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse res)
void	error(javax.servlet.http.HttpServletResponse res, String msg) Sends a 404 (page not found) error to the client.
void	init(javax.servlet.ServletConfig conf)

Methods inherited from class javax.servlet.http.HttpServlet

service

Methods inherited from class javax.servlet.GenericServlet

destroy, getInitParameter, getInitParameterNames, getServletConfig, getServletContext, getServletInfo, getServletName, init, log, log

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PathServlet

public PathServlet()

Method Detail

init

public void init(javax.servlet.ServletConfig conf)
          throws javax.servlet.ServletException

Specified by:

init in interface javax.servlet.Servlet

Overrides:

init in class javax.servlet.GenericServlet

Throws:

javax.servlet.ServletException

doPost

public void doPost(javax.servlet.http.HttpServletRequest req,
                   javax.servlet.http.HttpServletResponse res)
            throws javax.servlet.ServletException,
                   IOException

Overrides:

doPost in class javax.servlet.http.HttpServlet

Throws:

javax.servlet.ServletException

IOException

doGet

public void doGet(javax.servlet.http.HttpServletRequest req,
                  javax.servlet.http.HttpServletResponse res)
           throws javax.servlet.ServletException,
                  IOException

Overrides:

doGet in class javax.servlet.http.HttpServlet

Throws:

javax.servlet.ServletException

IOException

error

public void error(javax.servlet.http.HttpServletResponse res,
                  String msg)
           throws IOException

Sends a 404 (page not found) error to the client. Invoke this method if there is missing/bad path info and return from the servlet.

Throws:

IOException

doPathInfo

public abstract void doPathInfo(javax.servlet.http.HttpServletRequest req,
                                javax.servlet.http.HttpServletResponse res,
                                String pathinfo)
                         throws javax.servlet.ServletException,
                                IOException

The pathinfo parameter is not intern()'ed but can be if/as needed in this method.

Throws:

javax.servlet.ServletException

IOException