org.openqa.jetty.jetty.servlet

Class WebApplicationHandler

java.lang.Object

org.openqa.jetty.util.Container

org.openqa.jetty.jetty.servlet.ServletHandler

org.openqa.jetty.jetty.servlet.WebApplicationHandler

All Implemented Interfaces:

Serializable, HttpHandler, EventProvider, LifeCycle

public class WebApplicationHandler
extends ServletHandler

WebApp HttpHandler. This handler extends the ServletHandler with security, filter and resource capabilities to provide full J2EE web container support.

Since:

Jetty 4.1

Version:

$Id: WebApplicationHandler.java,v 1.62 2006/01/04 13:55:31 gregwilkins Exp $

Author:

Greg Wilkins

See Also:

WebApplicationContext, Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected HashMap[]	_chainCache
protected Object	_contextAttributeListeners
protected HashMap[]	_namedChainCache
protected Object	_requestAttributeListeners
protected Object	_requestListeners
protected Object	_sessionListeners
protected JSR154Filter	jsr154Filter
protected FilterHolder	jsr154FilterHolder

Fields inherited from class org.openqa.jetty.jetty.servlet.ServletHandler

__DEFAULT_SERVLET, __J_S_CONTEXT_TEMPDIR, __J_S_ERROR_EXCEPTION, __J_S_ERROR_EXCEPTION_TYPE, __J_S_ERROR_MESSAGE, __J_S_ERROR_REQUEST_URI, __J_S_ERROR_SERVLET_NAME, __J_S_ERROR_STATUS_CODE, _attributes, _context, _contextLog, _formErrorPage, _formLoginPage, _httpContext, _loader, _nameMap, _servletMap, _sessionManager

Constructor Summary

Constructors

Constructor and Description
WebApplicationHandler()

Method Summary

Methods

Modifier and Type	Method and Description
protected void	addComponent(Object o)
void	addEventListener(EventListener listener) Add a server event listener.
void	addFilterHolder(FilterHolder holder)
FilterHolder	addFilterPathMapping(String pathSpec, String filterName, int dispatches) Add a mapping from a pathSpec to a Filter.
FilterHolder	addFilterServletMapping(String servletName, String filterName, int dispatches) Add a servlet filter mapping
FilterHolder	defineFilter(String name, String className)
void	destroy() Destroy a stopped server.
protected void	dispatch(String pathInContext, javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response, ServletHolder servletHolder, int type) Dispatch to a servletHolder.
protected void	doStart() Do start operations.
protected void	doStop() Do stop operations.
String	getErrorPage(int status, ServletHttpRequest request)
FilterHolder	getFilter(String name)
List	getFilters()
JSR154Filter	getJsr154Filter()
void	initializeServlets() Initialize load-on-startup servlets.
boolean	isAcceptRanges()
boolean	isFilterChainsCached()
static void	main(String[] arg)
protected FilterHolder	newFilterHolder(String name, String className)
protected void	removeComponent(Object o)
void	removeContextAttribute(String name)
void	removeEventListener(EventListener listener)
void	setAcceptRanges(boolean ar) Set if the handler accepts range requests.
void	setContextAttribute(String name, Object value)
void	setFilterChainsCached(boolean filterChainsCached) Cache filter chains.
void	setSessionManager(SessionManager sm)

Methods inherited from class org.openqa.jetty.jetty.servlet.ServletHandler

addServlet, addServlet, addServlet, addServletHolder, finalize, formAuthInit, getClassLoader, getContextAttribute, getContextAttributeNames, getHolderEntry, getHttpContext, getHttpSession, getName, getNamedDispatcher, getRealPath, getRequestDispatcher, getResource, getResourceAsStream, getResourcePaths, getServletContext, getServletHolder, getServletMap, getServlets, getSessionManager, handle, handleOptions, handleTrace, handleTrace, initialize, isAutoInitializeServlets, isUsingCookies, mapPathToServlet, newHttpSession, newServletHolder, newServletHolder, notFound, setAutoInitializeServlets, setDynamicInitParams, setDynamicServletPathSpec, setName, setServeDynamicSystemServlets, setSessionInactiveInterval, setUsingCookies

Methods inherited from class org.openqa.jetty.util.Container

getComponents, isStarted, isStarting, isStopping, start, stop

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.openqa.jetty.util.LifeCycle

isStarted, start, stop

Field Detail

_requestListeners

protected transient Object _requestListeners

_requestAttributeListeners

protected transient Object _requestAttributeListeners

_sessionListeners

protected transient Object _sessionListeners

_contextAttributeListeners

protected transient Object _contextAttributeListeners

jsr154FilterHolder

protected transient FilterHolder jsr154FilterHolder

jsr154Filter

protected transient JSR154Filter jsr154Filter

_chainCache

protected transient HashMap[] _chainCache

_namedChainCache

protected transient HashMap[] _namedChainCache

Constructor Detail

WebApplicationHandler

public WebApplicationHandler()

Method Detail

isAcceptRanges

public boolean isAcceptRanges()

setAcceptRanges

public void setAcceptRanges(boolean ar)

Set if the handler accepts range requests. Default is false;

Parameters:

ar - True if the handler should accept ranges

getJsr154Filter

public JSR154Filter getJsr154Filter()

Returns:

Returns the jsr154Filter.

defineFilter

public FilterHolder defineFilter(String name,
                        String className)

newFilterHolder

protected FilterHolder newFilterHolder(String name,
                           String className)

addFilterHolder

public void addFilterHolder(FilterHolder holder)

getFilter

public FilterHolder getFilter(String name)

addFilterPathMapping

public FilterHolder addFilterPathMapping(String pathSpec,
                                String filterName,
                                int dispatches)

Add a mapping from a pathSpec to a Filter.

Parameters:

pathSpec - The path specification

filterName - The name of the filter (must already be added or defined)

dispatches - An integer formed by the logical OR of FilterHolder.__REQUEST, FilterHolder.__FORWARD,FilterHolder.__INCLUDE and/or FilterHolder.__ERROR.

Returns:

The holder of the filter instance.

addFilterServletMapping

public FilterHolder addFilterServletMapping(String servletName,
                                   String filterName,
                                   int dispatches)

Add a servlet filter mapping

Parameters:

servletName - The name of the servlet to be filtered.

filterName - The name of the filter.

dispatches - An integer formed by the logical OR of FilterHolder.__REQUEST, FilterHolder.__FORWARD,FilterHolder.__INCLUDE and/or FilterHolder.__ERROR.

Returns:

The holder of the filter instance.

getFilters

public List getFilters()

addEventListener

public void addEventListener(EventListener listener)
                      throws IllegalArgumentException

Description copied from class: Container

Add a server event listener.

Specified by:

addEventListener in interface EventProvider

Overrides:

addEventListener in class Container

Parameters:

listener - ComponentEventListener or LifeCycleEventListener

Throws:

IllegalArgumentException - If the EventListener type is not supported.

removeEventListener

public void removeEventListener(EventListener listener)

Specified by:

removeEventListener in interface EventProvider

Overrides:

removeEventListener in class Container

setSessionManager

public void setSessionManager(SessionManager sm)

Overrides:

setSessionManager in class ServletHandler

doStart

protected void doStart()
                throws Exception

Description copied from class: Container

Do start operations. This abstract method is called by start to perform the actual start operations.

Overrides:

doStart in class ServletHandler

Throws:

Exception

initializeServlets

public void initializeServlets()
                        throws Exception

Description copied from class: ServletHandler

Initialize load-on-startup servlets. Called automatically from start if autoInitializeServlet is true.

Overrides:

initializeServlets in class ServletHandler

Throws:

Exception

doStop

protected void doStop()
               throws Exception

Description copied from class: Container

Do stop operations. This abstract method is called by stop to perform the actual stop operations.

Overrides:

doStop in class ServletHandler

Throws:

Exception

getErrorPage

public String getErrorPage(int status,
                  ServletHttpRequest request)

Overrides:

getErrorPage in class ServletHandler

dispatch

protected void dispatch(String pathInContext,
            javax.servlet.http.HttpServletRequest request,
            javax.servlet.http.HttpServletResponse response,
            ServletHolder servletHolder,
            int type)
                 throws javax.servlet.ServletException,
                        javax.servlet.UnavailableException,
                        IOException

Description copied from class: ServletHandler

Dispatch to a servletHolder. This method may be specialized to insert extra handling in the dispatch of a request to a specific servlet. This is used by WebApplicatonHandler to implement dispatched filters. The default implementation simply calls ServletHolder.handle(request,response)

Overrides:

dispatch in class ServletHandler

Parameters:

pathInContext - The path used to select the servlet holder.

type - the type of dispatch as defined in the Dispatcher class.

Throws:

javax.servlet.ServletException

javax.servlet.UnavailableException

IOException

setContextAttribute

public void setContextAttribute(String name,
                       Object value)

Overrides:

setContextAttribute in class ServletHandler

removeContextAttribute

public void removeContextAttribute(String name)

Overrides:

removeContextAttribute in class ServletHandler

isFilterChainsCached

public boolean isFilterChainsCached()

Returns:

Returns the filterChainsCached.

setFilterChainsCached

public void setFilterChainsCached(boolean filterChainsCached)

Cache filter chains. If true, filter chains are cached by the URI path within the context. Caching should not be used if the webapp encodes information in URLs.

Parameters:

filterChainsCached - The filterChainsCached to set.

addComponent

protected void addComponent(Object o)

Overrides:

addComponent in class Container

See Also:

Container.addComponent(java.lang.Object)

removeComponent

protected void removeComponent(Object o)

Overrides:

removeComponent in class Container

See Also:

Container.removeComponent(java.lang.Object)

destroy

public void destroy()

Description copied from class: Container

Destroy a stopped server. Remove all components and send notifications to all event listeners. The HttpServer must be stopped before it can be destroyed.

Overrides:

destroy in class ServletHandler

main

public static void main(String[] arg)