fc.web.servlet

Class PathServlet

java.lang.Object

javax.servlet.GenericServlet

javax.servlet.http.HttpServlet

fc.web.servlet.PathServlet

All Implemented Interfaces:

java.io.Serializable, Servlet, ServletConfig

public abstract class PathServlet
extends 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

Constructors

Constructor and Description
PathServlet()

Method Summary

Modifier and Type	Method and Description
void	doGet(HttpServletRequest req, HttpServletResponse res)
abstract void	doPathInfo(HttpServletRequest req, HttpServletResponse res, java.lang.String pathinfo) The pathinfo parameter is not intern()'ed but can be if/as needed in this method.
void	doPost(HttpServletRequest req, HttpServletResponse res)
void	error(HttpServletResponse res, java.lang.String msg) Sends a 404 (page not found) error to the client.
void	init(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(ServletConfig conf)
          throws ServletException

Specified by:

init in interface Servlet

Overrides:

init in class GenericServlet

Throws:

ServletException

doPost

public void doPost(HttpServletRequest req,
                   HttpServletResponse res)
            throws ServletException,
                   java.io.IOException

Overrides:

doPost in class HttpServlet

Throws:

ServletException

java.io.IOException

doGet

public void doGet(HttpServletRequest req,
                  HttpServletResponse res)
           throws ServletException,
                  java.io.IOException

Overrides:

doGet in class HttpServlet

Throws:

ServletException

java.io.IOException

error

public void error(HttpServletResponse res,
                  java.lang.String msg)
           throws java.io.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:

java.io.IOException

doPathInfo

public abstract void doPathInfo(HttpServletRequest req,
                                HttpServletResponse res,
                                java.lang.String pathinfo)
                         throws ServletException,
                                java.io.IOException

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

Throws:

ServletException

java.io.IOException