org.mortbay.jetty.webapp
Class WebAppContext

java.lang.Object
  org.mortbay.component.AbstractLifeCycle
      org.mortbay.jetty.handler.AbstractHandler
          org.mortbay.jetty.handler.AbstractHandlerContainer
              org.mortbay.jetty.handler.HandlerWrapper
                  org.mortbay.jetty.handler.ContextHandler
                      org.mortbay.jetty.servlet.Context
                          org.mortbay.jetty.webapp.WebAppContext

All Implemented Interfaces:

Attributes, Handler, HandlerContainer, LifeCycle

public class WebAppContext

extends Context

Web Application Context Handler. The WebAppContext handler is an extension of ContextHandler that coordinates the construction and configuration of nested handlers: SecurityHandler, SessionHandler and ServletHandler. The handlers are configured by pluggable configuration classes, with the default being WebXmlConfiguration and JettyWebXmlConfiguration.

Author:

gregw

Nested Class Summary

class

WebAppContext.WebAppErrorHandler

Nested classes inherited from class org.mortbay.jetty.handler.ContextHandler

ContextHandler.Context

Field Summary

static String	ERROR_PAGE
static String	WEB_DEFAULTS_XML

Fields inherited from class org.mortbay.jetty.servlet.Context

_securityHandler, _servletHandler, _sessionHandler, NO_SECURITY, NO_SESSIONS, SECURITY, SESSIONS

Fields inherited from class org.mortbay.jetty.handler.AbstractHandler

_string

Fields inherited from interface org.mortbay.jetty.Handler

ALL, DEFAULT, ERROR, FORWARD, INCLUDE, REQUEST

Constructor Summary

WebAppContext()

WebAppContext(HandlerContainer parent, String webApp, String contextPath)

WebAppContext(SecurityHandler securityHandler, SessionHandler sessionHandler, ServletHandler servletHandler, ErrorHandler errorHandler)

WebAppContext(String webApp, String contextPath)

Method Summary

void	addEventListener(EventListener listener) Add EventListener Conveniance method that calls setEventListeners(EventListener[])
static void	addWebApplications(HandlerContainer contexts, String webapps, String defaults, boolean extract, boolean java2CompliantClassLoader) Add Web Applications.
static void	addWebApplications(HandlerContainer contexts, String webapps, String defaults, String[] configurations, boolean extract, boolean java2CompliantClassLoader) Add Web Applications.
static void	addWebApplications(Server server, String webapps, String defaults, boolean extract, boolean java2CompliantClassLoader) Add Web Applications.
static void	addWebApplications(Server server, String webapps, String defaults, String[] configurations, boolean extract, boolean java2CompliantClassLoader) Add Web Applications.
protected void	doStart()
protected void	doStop()
String[]	getConfigurationClasses()
Configuration[]	getConfigurations()
static WebAppContext	getCurrentWebAppContext()
String	getDefaultsDescriptor()
PermissionCollection	getPermissions()
Resource	getResource(String uriInContext)
String	getResourceAlias(String alias)
Map	getResourceAliases()
String[]	getServerClasses()
String[]	getSystemClasses()
File	getTempDirectory() Get a temporary directory in which to unpack the war etc etc.
String	getWar()
Resource	getWebInf()
boolean	isDistributable()
boolean	isExtractWAR()
boolean	isParentLoaderPriority()
protected boolean	isProtectedTarget(String target) Check the target.
boolean	isTempWorkDirectory() Check if the _tmpDir itself is called "work", or if the _tmpDir is in a directory called "work".
protected void	loadConfigurations()
String	removeResourceAlias(String alias)
protected void	resolveWebApp() Resolve Web App directory If the BaseResource has not been set, use the war resource to derive a webapp resource (expanding WAR if required).
void	setConfigurationClasses(String[] configurations)
void	setConfigurations(Configuration[] configurations)
void	setDefaultsDescriptor(String defaultsDescriptor)
void	setDistributable(boolean distributable)
void	setEventListeners(EventListener[] eventListeners)
void	setExtractWAR(boolean extractWAR)
void	setParentLoaderPriority(boolean java2compliant)
void	setPermissions(PermissionCollection permissions)
void	setResourceAlias(String alias, String uri) Set Resource Alias.
void	setResourceAliases(Map map)
void	setSecurityHandler(SecurityHandler securityHandler)
void	setServerClasses(String[] serverClasses)
void	setServletHandler(ServletHandler servletHandler)
void	setSessionHandler(SessionHandler sessionHandler)
void	setSystemClasses(String[] systemClasses)
void	setTempDirectory(File dir) Set temporary directory for context.
void	setWar(String war)
protected void	startContext()

Methods inherited from class org.mortbay.jetty.servlet.Context

addFilter, addFilter, addFilter, addServlet, addServlet, addServlet, getSecurityHandler, getServletHandler, getSessionHandler

Methods inherited from class org.mortbay.jetty.handler.ContextHandler

addLocaleEncoding, clearAttributes, getAttribute, getAttributeNames, getAttributes, getBaseResource, getClassLoader, getConnectorNames, getContextPath, getCurrentContext, getDisplayName, getErrorHandler, getEventListeners, getHosts, getInitParameter, getInitParameterNames, getInitParams, getLocaleEncoding, getMimeTypes, getResourceBase, getResourcePaths, getVirtualHosts, getWelcomeFiles, handle, isShutdown, loadClass, removeAttribute, setAttribute, setAttributes, setBaseResource, setClassLoader, setConnectorNames, setContextPath, setDisplayName, setErrorHandler, setHosts, setInitParams, setMimeTypes, setResourceBase, setServer, setShutdown, setVirtualHosts, setWelcomeFiles, toString

Methods inherited from class org.mortbay.jetty.handler.HandlerWrapper

addHandler, expandChildren, getHandler, setHandler

Methods inherited from class org.mortbay.jetty.handler.AbstractHandlerContainer

expandHandler, getChildHandlerByClass, getChildHandlers, getChildHandlersByClass

Methods inherited from class org.mortbay.jetty.handler.AbstractHandler

getServer

Methods inherited from class org.mortbay.component.AbstractLifeCycle

isFailed, isRunning, isStarted, isStarting, isStopping, start, stop

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.mortbay.component.LifeCycle

isFailed, isRunning, isStarted, isStarting, isStopping, start, stop

Field Detail

WEB_DEFAULTS_XML

public static final String WEB_DEFAULTS_XML

See Also:

Constant Field Values

ERROR_PAGE

public static final String ERROR_PAGE

See Also:

Constant Field Values

Constructor Detail

WebAppContext

public WebAppContext()

WebAppContext

public WebAppContext(String webApp,
                     String contextPath)

Parameters:

contextPath - The context path

webApp - The URL or filename of the webapp directory or war file.

WebAppContext

public WebAppContext(HandlerContainer parent,
                     String webApp,
                     String contextPath)

Parameters:

parent - The parent HandlerContainer.

contextPath - The context path

webApp - The URL or filename of the webapp directory or war file.

WebAppContext

public WebAppContext(SecurityHandler securityHandler,
                     SessionHandler sessionHandler,
                     ServletHandler servletHandler,
                     ErrorHandler errorHandler)

Method Detail

getCurrentWebAppContext

public static WebAppContext getCurrentWebAppContext()

addWebApplications

public static void addWebApplications(Server server,
                                      String webapps,
                                      String defaults,
                                      boolean extract,
                                      boolean java2CompliantClassLoader)
                               throws IOException

Add Web Applications. Add auto webapplications to the server. The name of the webapp directory or war is used as the context name. If the webapp matches the rootWebApp it is added as the "/" context.

Parameters:

server - Must not be null

webapps - Directory file name or URL to look for auto webapplication.

defaults - The defaults xml filename or URL which is loaded before any in the web app. Must respect the web.dtd. If null the default defaults file is used. If the empty string, then no defaults file is used.

extract - If true, extract war files

java2CompliantClassLoader - True if java2 compliance is applied to all webapplications

Throws:

IOException

addWebApplications

public static void addWebApplications(Server server,
                                      String webapps,
                                      String defaults,
                                      String[] configurations,
                                      boolean extract,
                                      boolean java2CompliantClassLoader)
                               throws IOException

Add Web Applications. Add auto webapplications to the server. The name of the webapp directory or war is used as the context name. If the webapp matches the rootWebApp it is added as the "/" context.

Parameters:

server - Must not be null.

webapps - Directory file name or URL to look for auto webapplication.

defaults - The defaults xml filename or URL which is loaded before any in the web app. Must respect the web.dtd. If null the default defaults file is used. If the empty string, then no defaults file is used.

configurations - Array of classnames of Configuration implementations to apply.

extract - If true, extract war files

java2CompliantClassLoader - True if java2 compliance is applied to all webapplications

Throws:

IOException

IllegalAccessException

InstantiationException

addWebApplications

public static void addWebApplications(HandlerContainer contexts,
                                      String webapps,
                                      String defaults,
                                      boolean extract,
                                      boolean java2CompliantClassLoader)
                               throws IOException

Add Web Applications. Add auto webapplications to the server. The name of the webapp directory or war is used as the context name. If the webapp is called "root" it is added as the "/" context.

Parameters:

contexts - A HandlerContainer to which the contexts will be added

webapps - Directory file name or URL to look for auto webapplication.

defaults - The defaults xml filename or URL which is loaded before any in the web app. Must respect the web.dtd. If null the default defaults file is used. If the empty string, then no defaults file is used.

extract - If true, extract war files

java2CompliantClassLoader - True if java2 compliance is applied to all webapplications

Throws:

IOException

IllegalAccessException

InstantiationException

addWebApplications

public static void addWebApplications(HandlerContainer contexts,
                                      String webapps,
                                      String defaults,
                                      String[] configurations,
                                      boolean extract,
                                      boolean java2CompliantClassLoader)
                               throws IOException

Add Web Applications. Add auto webapplications to the server. The name of the webapp directory or war is used as the context name. If the webapp is called "root" it is added as the "/" context.

Parameters:

contexts - A HandlerContainer to which the contexts will be added

webapps - Directory file name or URL to look for auto webapplication.

defaults - The defaults xml filename or URL which is loaded before any in the web app. Must respect the web.dtd. If null the default defaults file is used. If the empty string, then no defaults file is used.

configurations - Array of classnames of Configuration implementations to apply.

extract - If true, extract war files

java2CompliantClassLoader - True if java2 compliance is applied to all webapplications

Throws:

IOException

IllegalAccessException

InstantiationException

setResourceAlias

public void setResourceAlias(String alias,
                             String uri)

Set Resource Alias. Resource aliases map resource uri's within a context. They may optionally be used by a handler when looking for a resource.

Parameters:

alias -

uri -

getResourceAliases

public Map getResourceAliases()

setResourceAliases

public void setResourceAliases(Map map)

getResourceAlias

public String getResourceAlias(String alias)

removeResourceAlias

public String removeResourceAlias(String alias)

getResource

public Resource getResource(String uriInContext)
                     throws MalformedURLException

Overrides:

getResource in class ContextHandler

Throws:

MalformedURLException

doStart

protected void doStart()
                throws Exception

Overrides:

doStart in class ContextHandler

Throws:

Exception

doStop

protected void doStop()
               throws Exception

Overrides:

doStop in class ContextHandler

Throws:

Exception

getConfigurationClasses

public String[] getConfigurationClasses()

Returns:

Returns the configurations.

getConfigurations

public Configuration[] getConfigurations()

Returns:

Returns the configurations.

getDefaultsDescriptor

public String getDefaultsDescriptor()

Returns:

Returns the defaultsDescriptor.

getPermissions

public PermissionCollection getPermissions()

Returns:

Returns the permissions.

getServerClasses

public String[] getServerClasses()

Returns:

Returns the serverClasses.

getSystemClasses

public String[] getSystemClasses()

Returns:

Returns the systemClasses.

getTempDirectory

public File getTempDirectory()

Get a temporary directory in which to unpack the war etc etc. The algorithm for determining this is to check these alternatives in the order shown:

A. Try to use an explicit directory specifically for this webapp:

1. Iff an explicit directory is set for this webapp, use it. Do NOT set delete on exit.
2. Iff javax.servlet.context.tempdir context attribute is set for this webapp && exists && writeable, then use it. Do NOT set delete on exit.

B. Create a directory based on global settings. The new directory will be called "Jetty_"+host+"_"+port+"__"+context+"_"+virtualhost Work out where to create this directory:

1. Iff $(jetty.home)/work exists create the directory there. Do NOT set delete on exit. Do NOT delete contents if dir already exists.
2. Iff WEB-INF/work exists create the directory there. Do NOT set delete on exit. Do NOT delete contents if dir already exists.
3. Else create dir in $(java.io.tmpdir). Set delete on exit. Delete contents if dir already exists.

Returns:

isTempWorkDirectory

public boolean isTempWorkDirectory()

Check if the _tmpDir itself is called "work", or if the _tmpDir is in a directory called "work".

Returns:

getWar

public String getWar()

Returns:

Returns the war as a file or URL string (Resource)

getWebInf

public Resource getWebInf()
                   throws IOException

Throws:

IOException

isDistributable

public boolean isDistributable()

Returns:

Returns the distributable.

isExtractWAR

public boolean isExtractWAR()

Returns:

Returns the extractWAR.

isParentLoaderPriority

public boolean isParentLoaderPriority()

Returns:

Returns the java2compliant.

loadConfigurations

protected void loadConfigurations()
                           throws Exception

Throws:

Exception

isProtectedTarget

protected boolean isProtectedTarget(String target)

Description copied from class: ContextHandler

Check the target. Called by ContextHandler.handle(String, HttpServletRequest, HttpServletResponse, int) when a target within a context is determined. If the target is protected, 404 is returned. The default implementation always returns false.

Overrides:

isProtectedTarget in class ContextHandler

See Also:

isProtectedTarget(String)

resolveWebApp

protected void resolveWebApp()
                      throws IOException

Resolve Web App directory If the BaseResource has not been set, use the war resource to derive a webapp resource (expanding WAR if required).

Throws:

IOException

setConfigurationClasses

public void setConfigurationClasses(String[] configurations)

Parameters:

configurations - The configuration class names. If setConfigurations is not called these classes are used to create a configurations array.

setConfigurations

public void setConfigurations(Configuration[] configurations)

Parameters:

configurations - The configurations to set.

setDefaultsDescriptor

public void setDefaultsDescriptor(String defaultsDescriptor)

Parameters:

defaultsDescriptor - The defaultsDescriptor to set.

setDistributable

public void setDistributable(boolean distributable)

Parameters:

distributable - The distributable to set.

setEventListeners

public void setEventListeners(EventListener[] eventListeners)

Overrides:

setEventListeners in class ContextHandler

addEventListener

public void addEventListener(EventListener listener)

Add EventListener Conveniance method that calls setEventListeners(EventListener[])

Overrides:

addEventListener in class ContextHandler

Parameters:

listener -

setExtractWAR

public void setExtractWAR(boolean extractWAR)

Parameters:

extractWAR - The extractWAR to set.

setParentLoaderPriority

public void setParentLoaderPriority(boolean java2compliant)

Parameters:

java2compliant - The java2compliant to set.

setPermissions

public void setPermissions(PermissionCollection permissions)

Parameters:

permissions - The permissions to set.

setSecurityHandler

public void setSecurityHandler(SecurityHandler securityHandler)

Parameters:

securityHandler - The SecurityHandler to set on this context.

setServerClasses

public void setServerClasses(String[] serverClasses)

Parameters:

serverClasses - The serverClasses to set.

setServletHandler

public void setServletHandler(ServletHandler servletHandler)

Parameters:

servletHandler - The servletHandler to set.

setSessionHandler

public void setSessionHandler(SessionHandler sessionHandler)

Parameters:

sessionHandler - The sessionHandler to set.

setSystemClasses

public void setSystemClasses(String[] systemClasses)

Parameters:

systemClasses - The systemClasses to set.

setTempDirectory

public void setTempDirectory(File dir)

Set temporary directory for context. The javax.servlet.context.tempdir attribute is also set.

Parameters:

dir - Writable temporary directory.

setWar

public void setWar(String war)

Parameters:

war - The war to set as a file name or URL

startContext

protected void startContext()
                     throws Exception

Overrides:

startContext in class ContextHandler

Throws:

Exception