com.jdc.http.mvc
Class HttpController

java.lang.Object
  |
  +--jdc.javax.servlet.http.HttpServlet
        |
        +--com.jdc.http.HttpServlet
              |
              +--com.jdc.http.mvc.HttpController

public abstract class HttpController

extends HttpServlet

HttpController implements servlet methods common to all web application servlets. All web application servlets should extend this servlet class.

Version:

1.0

Author:

Jay Damon

See Also:

Serialized Form

Field Summary

static String	ERROR_PAGE The default error page.
protected Logger	log A logging object.
protected StringHelper	string A string helper object.

Constructor Summary

HttpController()

Method Summary

void	doGet(HttpServletRequest request, HttpServletResponse response) Handles HTTP GET requests.
void	doPost(HttpServletRequest request, HttpServletResponse response) Handles HTTP POST requests.
protected abstract void	doRequest(HttpServletRequest request, HttpServletResponse response) Processes web application servlet requests.
String	getFullHostName(HttpServletRequest request) Returns the full (complete) host name.
String	getRequestURI(HttpServletRequest request) Gets current request Uniform Resource Identifier (URI).
HttpSession	getSession(HttpServletRequest request) Returns the HTTP user session object.
HttpUserProfile	getUser(HttpServletRequest request) Returns the HTTP user profile object.
void	init(ServletConfig config) Initializes the web application servlet.

Methods inherited from class com.jdc.http.HttpServlet

getRequestDispatcher, getServletConfig, getServletContext, getServletName, getWebAppPathName

Methods inherited from class java.lang.Object

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

Field Detail

ERROR_PAGE

public static final String ERROR_PAGE

The default error page.

See Also:

Constant Field Values

string

protected StringHelper string

A string helper object. The string helper object is used to simplify the manipulation of String objects in subclasses that extend this class.

log

protected Logger log

A logging object. The logging object is used to simplify the logging of output in servlet subclasses.

Constructor Detail

HttpController

public HttpController()

Method Detail

doGet

public void doGet(HttpServletRequest request,
                  HttpServletResponse response)
           throws ServletException,
                  IOException

Handles HTTP GET requests. By default, all HTTP GET requests are routed to the processRequest servlet method.

ServletException

IOException

See Also:

(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)

doPost

public void doPost(HttpServletRequest request,
                   HttpServletResponse response)
            throws ServletException,
                   IOException

Handles HTTP POST requests. By default, all HTTP POST requests are routed to the processRequest servlet method.

ServletException

IOException

See Also:

(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)

doRequest

protected abstract void doRequest(HttpServletRequest request,
                                  HttpServletResponse response)
                           throws ServletException,
                                  IOException

Processes web application servlet requests. This method must be implemented in all web application servlets that extend this servlet class.

ServletException

IOException

getFullHostName

public String getFullHostName(HttpServletRequest request)

Returns the full (complete) host name.

Returns:

String

getRequestURI

public String getRequestURI(HttpServletRequest request)

Gets current request Uniform Resource Identifier (URI). An example of a URL returned: /webappname/servlet/servletname?parameter=value

Returns:

String

getSession

public HttpSession getSession(HttpServletRequest request)

Returns the HTTP user session object. A new HTTP user session object is created if one does not exist.

Returns:

HttpSession The HTTP user session object.

getUser

public HttpUserProfile getUser(HttpServletRequest request)

Returns the HTTP user profile object. A new HTTP user profile object is created if one does not exist.

Returns:

HttpUserProfile The HTTP user profile object.

init

public void init(ServletConfig config)
          throws ServletException

Initializes the web application servlet.

Overrides:

init in class HttpServlet

ServletException