org.apache.jasper.servlet

Class JspCServletContext

java.lang.Object

org.apache.jasper.servlet.JspCServletContext

All Implemented Interfaces:

javax.servlet.ServletContext

public class JspCServletContext
extends Object
implements javax.servlet.ServletContext

Simple ServletContext implementation without HTTP-specific methods.

Author:

Peter Rossbach (pr@webapp.de)

Field Summary

Fields

Modifier and Type	Field and Description
protected Hashtable<String,Object>	myAttributes Servlet context attributes.
protected PrintWriter	myLogWriter The log writer we will write log messages to.
protected URL	myResourceBaseURL The base URL (document root) for this context.

Fields inherited from interface javax.servlet.ServletContext

ORDERED_LIBS, TEMPDIR

Constructor Summary

Constructors

Constructor and Description
JspCServletContext(PrintWriter aLogWriter, URL aResourceBaseURL) Create a new instance of this ServletContext implementation.

Method Summary

Methods

Modifier and Type	Method and Description
javax.servlet.FilterRegistration.Dynamic	addFilter(String filterName, Class<? extends javax.servlet.Filter> filterClass)
javax.servlet.FilterRegistration.Dynamic	addFilter(String filterName, javax.servlet.Filter filter)
javax.servlet.FilterRegistration.Dynamic	addFilter(String filterName, String className)
void	addFilter(String filterName, String description, String className, Map<String,String> initParameters) Adds the filter with the given name, description, and class name to this servlet context.
void	addListener(Class<? extends EventListener> listenerClass)
void	addListener(String className)
<T extends EventListener> void	addListener(T t)
javax.servlet.ServletRegistration.Dynamic	addServlet(String servletName, Class<? extends javax.servlet.Servlet> servletClass)
javax.servlet.ServletRegistration.Dynamic	addServlet(String servletName, javax.servlet.Servlet servlet)
javax.servlet.ServletRegistration.Dynamic	addServlet(String servletName, String className)
void	addServlet(String servletName, String description, String className, Map<String,String> initParameters, int loadOnStartup)
void	addServletMapping(String servletName, String[] urlPatterns) Adds servlet mappings from the given url patterns to the servlet with the given servlet name to this servlet context.
<T extends javax.servlet.Filter> T	createFilter(Class<T> c)
<T extends EventListener> T	createListener(Class<T> clazz)
<T extends javax.servlet.Servlet> T	createServlet(Class<T> c)
void	declareRoles(String... roleNames)
Object	getAttribute(String name) Return the specified context attribute, if any.
Enumeration<String>	getAttributeNames() Return an enumeration of context attribute names.
ClassLoader	getClassLoader()
javax.servlet.ServletContext	getContext(String uripath) Return the servlet context for the specified path.
String	getContextPath() Returns the context path of the web application.
Set<javax.servlet.SessionTrackingMode>	getDefaultSessionTrackingModes()
int	getEffectiveMajorVersion()
int	getEffectiveMinorVersion()
Set<javax.servlet.SessionTrackingMode>	getEffectiveSessionTrackingModes()
javax.servlet.FilterRegistration	getFilterRegistration(String filterName)
Map<String,javax.servlet.FilterRegistration>	getFilterRegistrations()
String	getInitParameter(String name) Return the specified context initialization parameter.
Enumeration<String>	getInitParameterNames() Return an enumeration of the names of context initialization parameters.
javax.servlet.descriptor.JspConfigDescriptor	getJspConfigDescriptor()
int	getMajorVersion() Return the Servlet API major version number.
String	getMimeType(String file) Return the MIME type for the specified filename.
int	getMinorVersion() Return the Servlet API minor version number.
javax.servlet.RequestDispatcher	getNamedDispatcher(String name) Return a request dispatcher for the specified servlet name.
String	getRealPath(String path) Return the real path for the specified context-relative virtual path.
javax.servlet.RequestDispatcher	getRequestDispatcher(String path) Return a request dispatcher for the specified context-relative path.
URL	getResource(String path) Return a URL object of a resource that is mapped to the specified context-relative path.
InputStream	getResourceAsStream(String path) Return an InputStream allowing access to the resource at the specified context-relative path.
Set<String>	getResourcePaths(String path) Return the set of resource paths for the "directory" at the specified context path.
String	getServerInfo() Return descriptive information about this server.
javax.servlet.Servlet	getServlet(String name) Deprecated. This method has been deprecated with no replacement
String	getServletContextName() Return the name of this servlet context.
Enumeration<String>	getServletNames() Deprecated. This method has been deprecated with no replacement
javax.servlet.ServletRegistration	getServletRegistration(String servletName)
Map<String,javax.servlet.ServletRegistration>	getServletRegistrations()
Enumeration<javax.servlet.Servlet>	getServlets() Deprecated. This method has been deprecated with no replacement
javax.servlet.SessionCookieConfig	getSessionCookieConfig()
void	log(Exception exception, String message) Deprecated. Use log(String,Throwable) instead
void	log(String message) Log the specified message.
void	log(String message, Throwable exception) Log the specified message and exception.
void	removeAttribute(String name) Remove the specified context attribute.
void	setAttribute(String name, Object value) Set or replace the specified context attribute.
boolean	setInitParameter(String name, String value)
void	setSessionTrackingModes(Set<javax.servlet.SessionTrackingMode> sessionTrackingModes)

Methods inherited from class java.lang.Object

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

Field Detail

myAttributes

protected Hashtable<String,Object> myAttributes

Servlet context attributes.

myLogWriter

protected PrintWriter myLogWriter

The log writer we will write log messages to.

myResourceBaseURL

protected URL myResourceBaseURL

The base URL (document root) for this context.

Constructor Detail

JspCServletContext

public JspCServletContext(PrintWriter aLogWriter,
                  URL aResourceBaseURL)

Create a new instance of this ServletContext implementation.

Parameters:

aLogWriter - PrintWriter which is used for log() calls

aResourceBaseURL - Resource base URL

Method Detail

getAttribute

public Object getAttribute(String name)

Return the specified context attribute, if any.

Specified by:

getAttribute in interface javax.servlet.ServletContext

Parameters:

name - Name of the requested attribute

getAttributeNames

public Enumeration<String> getAttributeNames()

Return an enumeration of context attribute names.

Specified by:

getAttributeNames in interface javax.servlet.ServletContext

getContextPath

public String getContextPath()

Returns the context path of the web application.

Specified by:

getContextPath in interface javax.servlet.ServletContext

getContext

public javax.servlet.ServletContext getContext(String uripath)

Return the servlet context for the specified path.

Specified by:

getContext in interface javax.servlet.ServletContext

Parameters:

uripath - Server-relative path starting with '/'

getInitParameter

public String getInitParameter(String name)

Return the specified context initialization parameter.

Specified by:

getInitParameter in interface javax.servlet.ServletContext

Parameters:

name - Name of the requested parameter

getInitParameterNames

public Enumeration<String> getInitParameterNames()

Return an enumeration of the names of context initialization parameters.

Specified by:

getInitParameterNames in interface javax.servlet.ServletContext

getMajorVersion

public int getMajorVersion()

Return the Servlet API major version number.

Specified by:

getMajorVersion in interface javax.servlet.ServletContext

getMimeType

public String getMimeType(String file)

Return the MIME type for the specified filename.

Specified by:

getMimeType in interface javax.servlet.ServletContext

Parameters:

file - Filename whose MIME type is requested

getMinorVersion

public int getMinorVersion()

Return the Servlet API minor version number.

Specified by:

getMinorVersion in interface javax.servlet.ServletContext

getEffectiveMajorVersion

public int getEffectiveMajorVersion()

Specified by:

getEffectiveMajorVersion in interface javax.servlet.ServletContext

getEffectiveMinorVersion

public int getEffectiveMinorVersion()

Specified by:

getEffectiveMinorVersion in interface javax.servlet.ServletContext

getNamedDispatcher

public javax.servlet.RequestDispatcher getNamedDispatcher(String name)

Return a request dispatcher for the specified servlet name.

Specified by:

getNamedDispatcher in interface javax.servlet.ServletContext

Parameters:

name - Name of the requested servlet

getRealPath

public String getRealPath(String path)

Return the real path for the specified context-relative virtual path.

Specified by:

getRealPath in interface javax.servlet.ServletContext

Parameters:

path - The context-relative virtual path to resolve

getRequestDispatcher

public javax.servlet.RequestDispatcher getRequestDispatcher(String path)

Return a request dispatcher for the specified context-relative path.

Specified by:

getRequestDispatcher in interface javax.servlet.ServletContext

Parameters:

path - Context-relative path for which to acquire a dispatcher

getResource

public URL getResource(String path)
                throws MalformedURLException

Return a URL object of a resource that is mapped to the specified context-relative path.

Specified by:

getResource in interface javax.servlet.ServletContext

Parameters:

path - Context-relative path of the desired resource

Throws:

MalformedURLException - if the resource path is not properly formed

getResourceAsStream

public InputStream getResourceAsStream(String path)

Return an InputStream allowing access to the resource at the specified context-relative path.

Specified by:

getResourceAsStream in interface javax.servlet.ServletContext

Parameters:

path - Context-relative path of the desired resource

getResourcePaths

public Set<String> getResourcePaths(String path)

Return the set of resource paths for the "directory" at the specified context path.

Specified by:

getResourcePaths in interface javax.servlet.ServletContext

Parameters:

path - Context-relative base path

getServerInfo

public String getServerInfo()

Return descriptive information about this server.

Specified by:

getServerInfo in interface javax.servlet.ServletContext

getServlet

public javax.servlet.Servlet getServlet(String name)
                                 throws javax.servlet.ServletException

Deprecated. This method has been deprecated with no replacement

Return a null reference for the specified servlet name.

Specified by:

getServlet in interface javax.servlet.ServletContext

Parameters:

name - Name of the requested servlet

Throws:

javax.servlet.ServletException

getServletContextName

public String getServletContextName()

Return the name of this servlet context.

Specified by:

getServletContextName in interface javax.servlet.ServletContext

getServletNames

public Enumeration<String> getServletNames()

Deprecated. This method has been deprecated with no replacement

Return an empty enumeration of servlet names.

Specified by:

getServletNames in interface javax.servlet.ServletContext

getServlets

public Enumeration<javax.servlet.Servlet> getServlets()

Deprecated. This method has been deprecated with no replacement

Return an empty enumeration of servlets.

Specified by:

getServlets in interface javax.servlet.ServletContext

log

public void log(String message)

Log the specified message.

Specified by:

log in interface javax.servlet.ServletContext

Parameters:

message - The message to be logged

log

public void log(Exception exception,
       String message)

Deprecated. Use log(String,Throwable) instead

Log the specified message and exception.

Specified by:

log in interface javax.servlet.ServletContext

Parameters:

exception - The exception to be logged

message - The message to be logged

log

public void log(String message,
       Throwable exception)

Log the specified message and exception.

Specified by:

log in interface javax.servlet.ServletContext

Parameters:

message - The message to be logged

exception - The exception to be logged

removeAttribute

public void removeAttribute(String name)

Remove the specified context attribute.

Specified by:

removeAttribute in interface javax.servlet.ServletContext

Parameters:

name - Name of the attribute to remove

setAttribute

public void setAttribute(String name,
                Object value)

Set or replace the specified context attribute.

Specified by:

setAttribute in interface javax.servlet.ServletContext

Parameters:

name - Name of the context attribute to set

value - Corresponding attribute value

addServlet

public void addServlet(String servletName,
              String description,
              String className,
              Map<String,String> initParameters,
              int loadOnStartup)

addServletMapping

public void addServletMapping(String servletName,
                     String[] urlPatterns)

Adds servlet mappings from the given url patterns to the servlet with the given servlet name to this servlet context.

addFilter

public void addFilter(String filterName,
             String description,
             String className,
             Map<String,String> initParameters)

Adds the filter with the given name, description, and class name to this servlet context.

setInitParameter

public boolean setInitParameter(String name,
                       String value)

Specified by:

setInitParameter in interface javax.servlet.ServletContext

addServlet

public javax.servlet.ServletRegistration.Dynamic addServlet(String servletName,
                                                   String className)

Specified by:

addServlet in interface javax.servlet.ServletContext

addServlet

public javax.servlet.ServletRegistration.Dynamic addServlet(String servletName,
                                                   javax.servlet.Servlet servlet)

Specified by:

addServlet in interface javax.servlet.ServletContext

addServlet

public javax.servlet.ServletRegistration.Dynamic addServlet(String servletName,
                                                   Class<? extends javax.servlet.Servlet> servletClass)

Specified by:

addServlet in interface javax.servlet.ServletContext

createServlet

public <T extends javax.servlet.Servlet> T createServlet(Class<T> c)
                                              throws javax.servlet.ServletException

Specified by:

createServlet in interface javax.servlet.ServletContext

Throws:

javax.servlet.ServletException

getServletRegistration

public javax.servlet.ServletRegistration getServletRegistration(String servletName)

Specified by:

getServletRegistration in interface javax.servlet.ServletContext

getServletRegistrations

public Map<String,javax.servlet.ServletRegistration> getServletRegistrations()

Specified by:

getServletRegistrations in interface javax.servlet.ServletContext

addFilter

public javax.servlet.FilterRegistration.Dynamic addFilter(String filterName,
                                                 String className)

Specified by:

addFilter in interface javax.servlet.ServletContext

addFilter

public javax.servlet.FilterRegistration.Dynamic addFilter(String filterName,
                                                 javax.servlet.Filter filter)

Specified by:

addFilter in interface javax.servlet.ServletContext

addFilter

public javax.servlet.FilterRegistration.Dynamic addFilter(String filterName,
                                                 Class<? extends javax.servlet.Filter> filterClass)

Specified by:

addFilter in interface javax.servlet.ServletContext

createFilter

public <T extends javax.servlet.Filter> T createFilter(Class<T> c)

Specified by:

createFilter in interface javax.servlet.ServletContext

getFilterRegistration

public javax.servlet.FilterRegistration getFilterRegistration(String filterName)

Specified by:

getFilterRegistration in interface javax.servlet.ServletContext

getFilterRegistrations

public Map<String,javax.servlet.FilterRegistration> getFilterRegistrations()

Specified by:

getFilterRegistrations in interface javax.servlet.ServletContext

getSessionCookieConfig

public javax.servlet.SessionCookieConfig getSessionCookieConfig()

Specified by:

getSessionCookieConfig in interface javax.servlet.ServletContext

setSessionTrackingModes

public void setSessionTrackingModes(Set<javax.servlet.SessionTrackingMode> sessionTrackingModes)

Specified by:

setSessionTrackingModes in interface javax.servlet.ServletContext

getDefaultSessionTrackingModes

public Set<javax.servlet.SessionTrackingMode> getDefaultSessionTrackingModes()

Specified by:

getDefaultSessionTrackingModes in interface javax.servlet.ServletContext

getEffectiveSessionTrackingModes

public Set<javax.servlet.SessionTrackingMode> getEffectiveSessionTrackingModes()

Specified by:

getEffectiveSessionTrackingModes in interface javax.servlet.ServletContext

addListener

public void addListener(String className)

Specified by:

addListener in interface javax.servlet.ServletContext

addListener

public <T extends EventListener> void addListener(T t)

Specified by:

addListener in interface javax.servlet.ServletContext

addListener

public void addListener(Class<? extends EventListener> listenerClass)

Specified by:

addListener in interface javax.servlet.ServletContext

createListener

public <T extends EventListener> T createListener(Class<T> clazz)
                                       throws javax.servlet.ServletException

Specified by:

createListener in interface javax.servlet.ServletContext

Throws:

javax.servlet.ServletException

getJspConfigDescriptor

public javax.servlet.descriptor.JspConfigDescriptor getJspConfigDescriptor()

Specified by:

getJspConfigDescriptor in interface javax.servlet.ServletContext

getClassLoader

public ClassLoader getClassLoader()

Specified by:

getClassLoader in interface javax.servlet.ServletContext

declareRoles

public void declareRoles(String... roleNames)

Specified by:

declareRoles in interface javax.servlet.ServletContext