ServletContextImpl (Red Hat JBoss Enterprise Application Platform 7.2.0.GA public API)

java.lang.Object
- io.undertow.servlet.spec.ServletContextImpl

All Implemented Interfaces:: ServletContext

public class ServletContextImpl
extends Object
implements ServletContext

Author:: Stuart Douglas

Field Summary
- Fields inherited from interface javax.servlet.ServletContext
  ORDERED_LIBS, TEMPDIR

Constructor Summary

Constructors
Constructor and Description

ServletContextImpl(ServletContainer servletContainer, Deployment deployment)

Constructors
Constructor and Description
`ServletContextImpl(ServletContainer servletContainer, Deployment deployment)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`FilterRegistration.Dynamic`	`addFilter(String filterName, Class<? extends Filter> filterClass)` Adds the filter with the given name and class type to this servlet context.
`FilterRegistration.Dynamic`	`addFilter(String filterName, Filter filter)` Registers the given filter instance with this ServletContext under the given `filterName`.
`FilterRegistration.Dynamic`	`addFilter(String filterName, String className)` Adds the filter with the given name and class name to this servlet context.
`ServletRegistration.Dynamic`	`addJspFile(String servletName, String jspFile)` Adds the servlet with the given jsp file to this servlet context.
`void`	`addListener(Class<? extends EventListener> listenerClass)` Adds a listener of the given class type to this ServletContext.
`void`	`addListener(String className)` Adds the listener with the given class name to this ServletContext.
`<T extends EventListener> void`	`addListener(T t)` Adds the given listener to this ServletContext.
`ServletRegistration.Dynamic`	`addServlet(String servletName, Class<? extends Servlet> servletClass)` Adds the servlet with the given name and class type to this servlet context.
`ServletRegistration.Dynamic`	`addServlet(String servletName, Servlet servlet)` Registers the given servlet instance with this ServletContext under the given `servletName`.
`ServletRegistration.Dynamic`	`addServlet(String servletName, String className)` Adds the servlet with the given name and class name to this servlet context.
`ServletRegistration.Dynamic`	`addServlet(String servletName, String className, List<HandlerWrapper> wrappers)`
`<T extends Filter> T`	`createFilter(Class<T> clazz)` Instantiates the given Filter class.
`<T extends EventListener> T`	`createListener(Class<T> clazz)` Instantiates the given EventListener class.
`<T extends Servlet> T`	`createServlet(Class<T> clazz)` Instantiates the given Servlet class.
`void`	`declareRoles(String... roleNames)` Declares role names that are tested using `isUserInRole`.
`void`	`destroy()`
`Object`	`getAttribute(String name)` Returns the servlet container attribute with the given name, or `null` if there is no attribute by that name.
`Enumeration<String>`	`getAttributeNames()` Returns an `Enumeration` containing the attribute names available within this ServletContext.
`ClassLoader`	`getClassLoader()` Gets the class loader of the web application represented by this ServletContext.
`ServletContext`	`getContext(String uripath)` Returns a `ServletContext` object that corresponds to a specified URL on the server.
`String`	`getContextPath()` Returns the context path of the web application.
`Set<SessionTrackingMode>`	`getDefaultSessionTrackingModes()` Gets the session tracking modes that are supported by default for this `ServletContext`.
`Deployment`	`getDeployment()`
`int`	`getEffectiveMajorVersion()` Gets the major version of the Servlet specification that the application represented by this ServletContext is based on.
`int`	`getEffectiveMinorVersion()` Gets the minor version of the Servlet specification that the application represented by this ServletContext is based on.
`Set<SessionTrackingMode>`	`getEffectiveSessionTrackingModes()` Gets the session tracking modes that are in effect for this `ServletContext`.
`FilterRegistration`	`getFilterRegistration(String filterName)` Gets the FilterRegistration corresponding to the filter with the given `filterName`.
`Map<String,? extends FilterRegistration>`	`getFilterRegistrations()` Gets a (possibly empty) Map of the FilterRegistration objects (keyed by filter name) corresponding to all filters registered with this ServletContext.
`String`	`getInitParameter(String name)` Returns a `String` containing the value of the named context-wide initialization parameter, or `null` if the parameter does not exist.
`Enumeration<String>`	`getInitParameterNames()` Returns the names of the context's initialization parameters as an `Enumeration` of `String` objects, or an empty `Enumeration` if the context has no initialization parameters.
`JspConfigDescriptor`	`getJspConfigDescriptor()` Gets the `<jsp-config>` related configuration that was aggregated from the `web.xml` and `web-fragment.xml` descriptor files of the web application represented by this ServletContext.
`int`	`getMajorVersion()` Returns the major version of the Servlet API that this servlet container supports.
`String`	`getMimeType(String file)` Returns the MIME type of the specified file, or `null` if the MIME type is not known.
`int`	`getMinorVersion()` Returns the minor version of the Servlet API that this servlet container supports.
`RequestDispatcher`	`getNamedDispatcher(String name)` Returns a `RequestDispatcher` object that acts as a wrapper for the named servlet.
`String`	`getRealPath(String path)` Gets the real path corresponding to the given virtual path.
`String`	`getRequestCharacterEncoding()` Gets the request character encoding that are supported by default for this `ServletContext`.
`RequestDispatcher`	`getRequestDispatcher(String path)` Returns a `RequestDispatcher` object that acts as a wrapper for the resource located at the given path.
`URL`	`getResource(String path)` Returns a URL to the resource that is mapped to the given path.
`InputStream`	`getResourceAsStream(String path)` Returns the resource located at the named path as an `InputStream` object.
`Set<String>`	`getResourcePaths(String path)` Returns a directory-like listing of all the paths to resources within the web application whose longest sub-path matches the supplied path argument.
`String`	`getResponseCharacterEncoding()` Gets the response character encoding that are supported by default for this `ServletContext`.
`String`	`getServerInfo()` Returns the name and version of the servlet container on which the servlet is running.
`Servlet`	`getServlet(String name)`
`String`	`getServletContextName()` Returns the name of this web application corresponding to this ServletContext as specified in the deployment descriptor for this web application by the display-name element.
`Enumeration<String>`	`getServletNames()`
`ServletRegistration`	`getServletRegistration(String servletName)` Gets the ServletRegistration corresponding to the servlet with the given `servletName`.
`Map<String,? extends ServletRegistration>`	`getServletRegistrations()` Gets a (possibly empty) Map of the ServletRegistration objects (keyed by servlet name) corresponding to all servlets registered with this ServletContext.
`Enumeration<Servlet>`	`getServlets()`
`HttpSessionImpl`	`getSession(HttpServerExchange exchange, boolean create)` Gets the session
`HttpSessionImpl`	`getSession(ServletContextImpl originalServletContext, HttpServerExchange exchange, boolean create)`
`HttpSessionImpl`	`getSession(String sessionId)` Gets the session with the specified ID if it exists
`SessionConfig`	`getSessionConfig()`
`SessionCookieConfigImpl`	`getSessionCookieConfig()` Gets the `SessionCookieConfig` object through which various properties of the session tracking cookies created on behalf of this `ServletContext` may be configured.
`int`	`getSessionTimeout()` Gets the session timeout in minutes that are supported by default for this `ServletContext`.
`String`	`getVirtualServerName()` Returns the configuration name of the logical host on which the ServletContext is deployed.
`void`	`initDone()`
`void`	`log(Exception exception, String msg)`
`void`	`log(String msg)` Writes the specified message to a servlet log file, usually an event log.
`void`	`log(String message, Throwable throwable)` Writes an explanatory message and a stack trace for a given `Throwable` exception to the servlet log file.
`void`	`removeAttribute(String name)` Removes the attribute with the given name from this ServletContext.
`void`	`setAttribute(String name, Object object)` Binds an object to a given attribute name in this ServletContext.
`void`	`setDefaultSessionTrackingModes(HashSet<SessionTrackingMode> sessionTrackingModes)`
`boolean`	`setInitParameter(String name, String value)` Sets the context initialization parameter with the given name and value on this ServletContext.
`void`	`setRequestCharacterEncoding(String encoding)` Sets the request character encoding for this ServletContext.
`void`	`setResponseCharacterEncoding(String encoding)` Sets the response character encoding for this ServletContext.
`void`	`setSessionTimeout(int sessionTimeout)` Sets the session timeout in minutes for this ServletContext.
`void`	`setSessionTrackingModes(Set<SessionTrackingMode> sessionTrackingModes)` Sets the session tracking modes that are to become effective for this `ServletContext`.
`void`	`updateSessionAccessTime(HttpServerExchange exchange)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - ServletContextImpl
```
public ServletContextImpl(ServletContainer servletContainer,
                          Deployment deployment)
```
- Method Detail
  - initDone
```
public void initDone()
```
  - getContextPath
```
public String getContextPath()
```
    Description copied from interface: ServletContext
    
    Returns the context path of the web application.
    The context path is the portion of the request URI that is used to select the context of the request. The context path always comes first in a request URI. If this context is the "root" context rooted at the base of the Web server's URL name space, this path will be an empty string. Otherwise, if the context is not rooted at the root of the server's name space, the path starts with a / character but does not end with a / character.
    It is possible that a servlet container may match a context by more than one context path. In such cases the HttpServletRequest.getContextPath() will return the actual context path used by the request and it may differ from the path returned by this method. The context path returned by this method should be considered as the prime or preferred context path of the application.
    
    Specified by:
    
    getContextPath in interface ServletContext
    
    Returns:
    
    The context path of the web application, or "" for the root context
    
    See Also:
    
    HttpServletRequest.getContextPath()
  - getContext
```
public ServletContext getContext(String uripath)
```
    Description copied from interface: ServletContext
    
    Returns a ServletContext object that corresponds to a specified URL on the server.
    This method allows servlets to gain access to the context for various parts of the server, and as needed obtain RequestDispatcher objects from the context. The given path must be begin with /, is interpreted relative to the server's document root and is matched against the context roots of other web applications hosted on this container.
    In a security conscious environment, the servlet container may return null for a given URL.
    
    Specified by:
    
    getContext in interface ServletContext
    
    Parameters:
    
    uripath - a String specifying the context path of another web application in the container.
    
    Returns:
    
    the ServletContext object that corresponds to the named URL, or null if either none exists or the container wishes to restrict this access.
    
    See Also:
    
    RequestDispatcher
  - getMajorVersion
```
public int getMajorVersion()
```
    Description copied from interface: ServletContext
    
    Returns the major version of the Servlet API that this servlet container supports. All implementations that comply with Version 4.0 must have this method return the integer 4.
    
    Specified by:
    
    getMajorVersion in interface ServletContext
    
    Returns:
    
    4
  - getMinorVersion
```
public int getMinorVersion()
```
    Description copied from interface: ServletContext
    
    Returns the minor version of the Servlet API that this servlet container supports. All implementations that comply with Version 4.0 must have this method return the integer 0.
    
    Specified by:
    
    getMinorVersion in interface ServletContext
    
    Returns:
    
    0
  - getEffectiveMajorVersion
```
public int getEffectiveMajorVersion()
```
    Description copied from interface: ServletContext
    
    Gets the major version of the Servlet specification that the application represented by this ServletContext is based on.
    The value returned may be different from ServletContext.getMajorVersion(), which returns the major version of the Servlet specification supported by the Servlet container.
    
    Specified by:
    
    getEffectiveMajorVersion in interface ServletContext
    
    Returns:
    
    the major version of the Servlet specification that the application represented by this ServletContext is based on
  - getEffectiveMinorVersion
```
public int getEffectiveMinorVersion()
```
    Description copied from interface: ServletContext
    
    Gets the minor version of the Servlet specification that the application represented by this ServletContext is based on.
    The value returned may be different from ServletContext.getMinorVersion(), which returns the minor version of the Servlet specification supported by the Servlet container.
    
    Specified by:
    
    getEffectiveMinorVersion in interface ServletContext
    
    Returns:
    
    the minor version of the Servlet specification that the application represented by this ServletContext is based on
  - getMimeType
```
public String getMimeType(String file)
```
    Description copied from interface: ServletContext
    
    Returns the MIME type of the specified file, or null if the MIME type is not known. The MIME type is determined by the configuration of the servlet container, and may be specified in a web application deployment descriptor. Common MIME types include text/html and image/gif.
    
    Specified by:
    
    getMimeType in interface ServletContext
    
    Parameters:
    
    file - a String specifying the name of a file
    
    Returns:
    
    a String specifying the file's MIME type
  - getResourcePaths
```
public Set<String> getResourcePaths(String path)
```
    Description copied from interface: ServletContext
    Returns a directory-like listing of all the paths to resources within the web application whose longest sub-path matches the supplied path argument.
    Paths indicating subdirectory paths end with a /.
    The returned paths are all relative to the root of the web application, or relative to the /META-INF/resources directory of a JAR file inside the web application's /WEB-INF/lib directory, and have a leading /.
    The returned set is not backed by the ServletContext object, so changes in the returned set are not reflected in the ServletContext object, and vice-versa.
    
    For example, for a web application containing:
```
   /welcome.html
   /catalog/index.html
   /catalog/products.html
   /catalog/offers/books.html
   /catalog/offers/music.html
   /customer/login.jsp
   /WEB-INF/web.xml
   /WEB-INF/classes/com.acme.OrderServlet.class
   /WEB-INF/lib/catalog.jar!/META-INF/resources/catalog/moreOffers/books.html
 
```
    getResourcePaths("/") would return {"/welcome.html", "/catalog/", "/customer/", "/WEB-INF/"}, and getResourcePaths("/catalog/") would return {"/catalog/index.html", "/catalog/products.html", "/catalog/offers/", "/catalog/moreOffers/"}.
    Specified by:
    
    getResourcePaths in interface ServletContext
    
    Parameters:
    
    path - the partial path used to match the resources, which must start with a /
    
    Returns:
    
    a Set containing the directory listing, or null if there are no resources in the web application whose path begins with the supplied path.
  - getResource
```
public URL getResource(String path)
                throws MalformedURLException
```
    Description copied from interface: ServletContext
    
    Returns a URL to the resource that is mapped to the given path.
    The path must begin with a / and is interpreted as relative to the current context root, or relative to the /META-INF/resources directory of a JAR file inside the web application's /WEB-INF/lib directory. This method will first search the document root of the web application for the requested resource, before searching any of the JAR files inside /WEB-INF/lib. The order in which the JAR files inside /WEB-INF/lib are searched is undefined.
    This method allows the servlet container to make a resource available to servlets from any source. Resources can be located on a local or remote file system, in a database, or in a .war file.
    The servlet container must implement the URL handlers and URLConnection objects that are necessary to access the resource.
    This method returns null if no resource is mapped to the pathname.
    Some containers may allow writing to the URL returned by this method using the methods of the URL class.
    The resource content is returned directly, so be aware that requesting a .jsp page returns the JSP source code. Use a RequestDispatcher instead to include results of an execution.
    This method has a different purpose than java.lang.Class.getResource, which looks up resources based on a class loader. This method does not use class loaders.
    
    Specified by:
    
    getResource in interface ServletContext
    
    Parameters:
    
    path - a String specifying the path to the resource
    
    Returns:
    
    the resource located at the named path, or null if there is no resource at that path
    
    Throws:
    
    MalformedURLException - if the pathname is not given in the correct form
  - getResourceAsStream
```
public InputStream getResourceAsStream(String path)
```
    Description copied from interface: ServletContext
    
    Returns the resource located at the named path as an InputStream object.
    The data in the InputStream can be of any type or length. The path must be specified according to the rules given in getResource. This method returns null if no resource exists at the specified path.
    Meta-information such as content length and content type that is available via getResource method is lost when using this method.
    The servlet container must implement the URL handlers and URLConnection objects necessary to access the resource.
    This method is different from java.lang.Class.getResourceAsStream, which uses a class loader. This method allows servlet containers to make a resource available to a servlet from any location, without using a class loader.
    
    Specified by:
    
    getResourceAsStream in interface ServletContext
    
    Parameters:
    
    path - a String specifying the path to the resource
    
    Returns:
    
    the InputStream returned to the servlet, or null if no resource exists at the specified path
  - getRequestDispatcher
```
public RequestDispatcher getRequestDispatcher(String path)
```
    Description copied from interface: ServletContext
    
    Returns a RequestDispatcher object that acts as a wrapper for the resource located at the given path. A RequestDispatcher object can be used to forward a request to the resource or to include the resource in a response. The resource can be dynamic or static.
    The pathname must begin with a / and is interpreted as relative to the current context root. Use getContext to obtain a RequestDispatcher for resources in foreign contexts.
    This method returns null if the ServletContext cannot return a RequestDispatcher.
    
    Specified by:
    
    getRequestDispatcher in interface ServletContext
    
    Parameters:
    
    path - a String specifying the pathname to the resource
    
    Returns:
    
    a RequestDispatcher object that acts as a wrapper for the resource at the specified path, or null if the ServletContext cannot return a RequestDispatcher
    
    See Also:
    
    RequestDispatcher, ServletContext.getContext(java.lang.String)
  - getNamedDispatcher
```
public RequestDispatcher getNamedDispatcher(String name)
```
    Description copied from interface: ServletContext
    
    Returns a RequestDispatcher object that acts as a wrapper for the named servlet.
    Servlets (and JSP pages also) may be given names via server administration or via a web application deployment descriptor. A servlet instance can determine its name using ServletConfig.getServletName().
    This method returns null if the ServletContext cannot return a RequestDispatcher for any reason.
    
    Specified by:
    
    getNamedDispatcher in interface ServletContext
    
    Parameters:
    
    name - a String specifying the name of a servlet to wrap
    
    Returns:
    
    a RequestDispatcher object that acts as a wrapper for the named servlet, or null if the ServletContext cannot return a RequestDispatcher
    
    See Also:
    
    RequestDispatcher, ServletContext.getContext(java.lang.String), ServletConfig.getServletName()
  - getServlet
```
public Servlet getServlet(String name)
                   throws ServletException
```
    Specified by:
    
    getServlet in interface ServletContext
    
    Parameters:
    
    name - the servlet name
    
    Returns:
    
    the javax.servlet.Servlet Servlet with the given name
    
    Throws:
    
    ServletException - if an exception has occurred that interfaces with servlet's normal operation
  - getServlets
```
public Enumeration<Servlet> getServlets()
```
    Specified by:
    
    getServlets in interface ServletContext
    
    Returns:
    
    an Enumeration of javax.servlet.Servlet Servlet
  - getServletNames
```
public Enumeration<String> getServletNames()
```
    Specified by:
    
    getServletNames in interface ServletContext
    
    Returns:
    
    an Enumeration of javax.servlet.Servlet Servlet names
  - log
```
public void log(String msg)
```
    Description copied from interface: ServletContext
    
    Writes the specified message to a servlet log file, usually an event log. The name and type of the servlet log file is specific to the servlet container.
    
    Specified by:
    
    log in interface ServletContext
    
    Parameters:
    
    msg - a String specifying the message to be written to the log file
  - log
```
public void log(Exception exception,
                String msg)
```
    Specified by:
    
    log in interface ServletContext
    
    Parameters:
    
    exception - the Exception error
    
    msg - a String that describes the exception
  - log
```
public void log(String message,
                Throwable throwable)
```
    Description copied from interface: ServletContext
    
    Writes an explanatory message and a stack trace for a given Throwable exception to the servlet log file. The name and type of the servlet log file is specific to the servlet container, usually an event log.
    
    Specified by:
    
    log in interface ServletContext
    
    Parameters:
    
    message - a String that describes the error or exception
    
    throwable - the Throwable error or exception
  - getRealPath
```
public String getRealPath(String path)
```
    Description copied from interface: ServletContext
    
    Gets the real path corresponding to the given virtual path.
    For example, if path is equal to /index.html, this method will return the absolute file path on the server's filesystem to which a request of the form http://<host>:<port>/<contextPath>/index.html would be mapped, where <contextPath> corresponds to the context path of this ServletContext.
    The real path returned will be in a form appropriate to the computer and operating system on which the servlet container is running, including the proper path separators.
    Resources inside the /META-INF/resources directories of JAR files bundled in the application's /WEB-INF/lib directory must be considered only if the container has unpacked them from their containing JAR file, in which case the path to the unpacked location must be returned.
    This method returns null if the servlet container is unable to translate the given virtual path to a real path.
    
    Specified by:
    
    getRealPath in interface ServletContext
    
    Parameters:
    
    path - the virtual path to be translated to a real path
    
    Returns:
    
    the real path, or null if the translation cannot be performed
  - getServerInfo
```
public String getServerInfo()
```
    Description copied from interface: ServletContext
    
    Returns the name and version of the servlet container on which the servlet is running.
    The form of the returned string is servername/versionnumber. For example, the JavaServer Web Development Kit may return the string JavaServer Web Dev Kit/1.0.
    The servlet container may return other optional information after the primary string in parentheses, for example, JavaServer Web Dev Kit/1.0 (JDK 1.1.6; Windows NT 4.0 x86).
    
    Specified by:
    
    getServerInfo in interface ServletContext
    
    Returns:
    
    a String containing at least the servlet container name and version number
  - getInitParameter
```
public String getInitParameter(String name)
```
    Description copied from interface: ServletContext
    
    Returns a String containing the value of the named context-wide initialization parameter, or null if the parameter does not exist.
    This method can make available configuration information useful to an entire web application. For example, it can provide a webmaster's email address or the name of a system that holds critical data.
    
    Specified by:
    
    getInitParameter in interface ServletContext
    
    Parameters:
    
    name - a String containing the name of the parameter whose value is requested
    
    Returns:
    
    a String containing the value of the context's initialization parameter, or null if the context's initialization parameter does not exist.
    
    See Also:
    
    ServletConfig.getInitParameter(java.lang.String)
  - getInitParameterNames
```
public Enumeration<String> getInitParameterNames()
```
    Description copied from interface: ServletContext
    
    Returns the names of the context's initialization parameters as an Enumeration of String objects, or an empty Enumeration if the context has no initialization parameters.
    
    Specified by:
    
    getInitParameterNames in interface ServletContext
    
    Returns:
    
    an Enumeration of String objects containing the names of the context's initialization parameters
    
    See Also:
    
    ServletConfig.getInitParameter(java.lang.String)
  - setInitParameter
```
public boolean setInitParameter(String name,
                                String value)
```
    Description copied from interface: ServletContext
    
    Sets the context initialization parameter with the given name and value on this ServletContext.
    
    Specified by:
    
    setInitParameter in interface ServletContext
    
    Parameters:
    
    name - the name of the context initialization parameter to set
    
    value - the value of the context initialization parameter to set
    
    Returns:
    
    true if the context initialization parameter with the given name and value was set successfully on this ServletContext, and false if it was not set because this ServletContext already contains a context initialization parameter with a matching name
  - getAttribute
```
public Object getAttribute(String name)
```
    Description copied from interface: ServletContext
    
    Returns the servlet container attribute with the given name, or null if there is no attribute by that name.
    An attribute allows a servlet container to give the servlet additional information not already provided by this interface. See your server documentation for information about its attributes. A list of supported attributes can be retrieved using getAttributeNames.
    The attribute is returned as a java.lang.Object or some subclass.
    Attribute names should follow the same convention as package names. The Java Servlet API specification reserves names matching java.*, javax.*, and sun.*.
    
    Specified by:
    
    getAttribute in interface ServletContext
    
    Parameters:
    
    name - a String specifying the name of the attribute
    
    Returns:
    
    an Object containing the value of the attribute, or null if no attribute exists matching the given name.
    
    See Also:
    
    ServletContext.getAttributeNames()
  - getAttributeNames
```
public Enumeration<String> getAttributeNames()
```
    Description copied from interface: ServletContext
    
    Returns an Enumeration containing the attribute names available within this ServletContext.
    Use the ServletContext.getAttribute(java.lang.String) method with an attribute name to get the value of an attribute.
    
    Specified by:
    
    getAttributeNames in interface ServletContext
    
    Returns:
    
    an Enumeration of attribute names
    
    See Also:
    
    ServletContext.getAttribute(java.lang.String)
  - setAttribute
```
public void setAttribute(String name,
                         Object object)
```
    Description copied from interface: ServletContext
    
    Binds an object to a given attribute name in this ServletContext. If the name specified is already used for an attribute, this method will replace the attribute with the new to the new attribute.
    If listeners are configured on the ServletContext the container notifies them accordingly.
    If a null value is passed, the effect is the same as calling removeAttribute().
    Attribute names should follow the same convention as package names. The Java Servlet API specification reserves names matching java.*, javax.*, and sun.*.
    
    Specified by:
    
    setAttribute in interface ServletContext
    
    Parameters:
    
    name - a String specifying the name of the attribute
    
    object - an Object representing the attribute to be bound
  - removeAttribute
```
public void removeAttribute(String name)
```
    Description copied from interface: ServletContext
    
    Removes the attribute with the given name from this ServletContext. After removal, subsequent calls to ServletContext.getAttribute(java.lang.String) to retrieve the attribute's value will return null.
    If listeners are configured on the ServletContext the container notifies them accordingly.
    
    Specified by:
    
    removeAttribute in interface ServletContext
    
    Parameters:
    
    name - a String specifying the name of the attribute to be removed
  - getServletContextName
```
public String getServletContextName()
```
    Description copied from interface: ServletContext
    
    Returns the name of this web application corresponding to this ServletContext as specified in the deployment descriptor for this web application by the display-name element.
    
    Specified by:
    
    getServletContextName in interface ServletContext
    
    Returns:
    
    The name of the web application or null if no name has been declared in the deployment descriptor.
  - addServlet
```
public ServletRegistration.Dynamic addServlet(String servletName,
                                              String className)
```
    Description copied from interface: ServletContext
    
    Adds the servlet with the given name and class name to this servlet context.
    The registered servlet may be further configured via the returned ServletRegistration object.
    The specified className will be loaded using the classloader associated with the application represented by this ServletContext.
    If this ServletContext already contains a preliminary ServletRegistration for a servlet with the given servletName, it will be completed (by assigning the given className to it) and returned.
    This method introspects the class with the given className for the ServletSecurity, MultipartConfig, javax.annotation.security.RunAs, and javax.annotation.security.DeclareRoles annotations. In addition, this method supports resource injection if the class with the given className represents a Managed Bean. See the Java EE platform and JSR 299 specifications for additional details about Managed Beans and resource injection.
    
    Specified by:
    
    addServlet in interface ServletContext
    
    Parameters:
    
    servletName - the name of the servlet
    
    className - the fully qualified class name of the servlet
    
    Returns:
    
    a ServletRegistration object that may be used to further configure the registered servlet, or null if this ServletContext already contains a complete ServletRegistration for a servlet with the given servletName
  - addServlet
```
public ServletRegistration.Dynamic addServlet(String servletName,
                                              String className,
                                              List<HandlerWrapper> wrappers)
```
  - addServlet
```
public ServletRegistration.Dynamic addServlet(String servletName,
                                              Servlet servlet)
```
    Description copied from interface: ServletContext
    
    Registers the given servlet instance with this ServletContext under the given servletName.
    The registered servlet may be further configured via the returned ServletRegistration object.
    If this ServletContext already contains a preliminary ServletRegistration for a servlet with the given servletName, it will be completed (by assigning the class name of the given servlet instance to it) and returned.
    
    Specified by:
    
    addServlet in interface ServletContext
    
    Parameters:
    
    servletName - the name of the servlet
    
    servlet - the servlet instance to register
    
    Returns:
    
    a ServletRegistration object that may be used to further configure the given servlet, or null if this ServletContext already contains a complete ServletRegistration for a servlet with the given servletName or if the same servlet instance has already been registered with this or another ServletContext in the same container
  - addServlet
```
public ServletRegistration.Dynamic addServlet(String servletName,
                                              Class<? extends Servlet> servletClass)
```
    Description copied from interface: ServletContext
    
    Adds the servlet with the given name and class type to this servlet context.
    The registered servlet may be further configured via the returned ServletRegistration object.
    If this ServletContext already contains a preliminary ServletRegistration for a servlet with the given servletName, it will be completed (by assigning the name of the given servletClass to it) and returned.
    This method introspects the given servletClass for the ServletSecurity, MultipartConfig, javax.annotation.security.RunAs, and javax.annotation.security.DeclareRoles annotations. In addition, this method supports resource injection if the given servletClass represents a Managed Bean. See the Java EE platform and JSR 299 specifications for additional details about Managed Beans and resource injection.
    
    Specified by:
    
    addServlet in interface ServletContext
    
    Parameters:
    
    servletName - the name of the servlet
    
    servletClass - the class object from which the servlet will be instantiated
    
    Returns:
    
    a ServletRegistration object that may be used to further configure the registered servlet, or null if this ServletContext already contains a complete ServletRegistration for the given servletName
  - createServlet
```
public <T extends Servlet> T createServlet(Class<T> clazz)
                                    throws ServletException
```
    Description copied from interface: ServletContext
    
    Instantiates the given Servlet class.
    The returned Servlet instance may be further customized before it is registered with this ServletContext via a call to ServletContext.addServlet(String,Servlet).
    The given Servlet class must define a zero argument constructor, which is used to instantiate it.
    This method introspects the given clazz for the following annotations: ServletSecurity, MultipartConfig, javax.annotation.security.RunAs, and javax.annotation.security.DeclareRoles. In addition, this method supports resource injection if the given clazz represents a Managed Bean. See the Java EE platform and JSR 299 specifications for additional details about Managed Beans and resource injection.
    
    Specified by:
    
    createServlet in interface ServletContext
    
    Type Parameters:
    
    T - the class of the Servlet to create
    
    Parameters:
    
    clazz - the Servlet class to instantiate
    
    Returns:
    
    the new Servlet instance
    
    Throws:
    
    ServletException - if the given clazz fails to be instantiated
  - getServletRegistration
```
public ServletRegistration getServletRegistration(String servletName)
```
    Description copied from interface: ServletContext
    
    Gets the ServletRegistration corresponding to the servlet with the given servletName.
    
    Specified by:
    
    getServletRegistration in interface ServletContext
    
    Parameters:
    
    servletName - the name of a servlet
    
    Returns:
    
    the (complete or preliminary) ServletRegistration for the servlet with the given servletName, or null if no ServletRegistration exists under that name
  - getServletRegistrations
```
public Map<String,? extends ServletRegistration> getServletRegistrations()
```
    Description copied from interface: ServletContext
    
    Gets a (possibly empty) Map of the ServletRegistration objects (keyed by servlet name) corresponding to all servlets registered with this ServletContext.
    The returned Map includes the ServletRegistration objects corresponding to all declared and annotated servlets, as well as the ServletRegistration objects corresponding to all servlets that have been added via one of the addServlet and addJspFile methods.
    If permitted, any changes to the returned Map must not affect this ServletContext.
    
    Specified by:
    
    getServletRegistrations in interface ServletContext
    
    Returns:
    
    Map of the (complete and preliminary) ServletRegistration objects corresponding to all servlets currently registered with this ServletContext
  - addFilter
```
public FilterRegistration.Dynamic addFilter(String filterName,
                                            String className)
```
    Description copied from interface: ServletContext
    
    Adds the filter with the given name and class name to this servlet context.
    The registered filter may be further configured via the returned FilterRegistration object.
    The specified className will be loaded using the classloader associated with the application represented by this ServletContext.
    If this ServletContext already contains a preliminary FilterRegistration for a filter with the given filterName, it will be completed (by assigning the given className to it) and returned.
    This method supports resource injection if the class with the given className represents a Managed Bean. See the Java EE platform and JSR 299 specifications for additional details about Managed Beans and resource injection.
    
    Specified by:
    
    addFilter in interface ServletContext
    
    Parameters:
    
    filterName - the name of the filter
    
    className - the fully qualified class name of the filter
    
    Returns:
    
    a FilterRegistration object that may be used to further configure the registered filter, or null if this ServletContext already contains a complete FilterRegistration for a filter with the given filterName
  - addFilter
```
public FilterRegistration.Dynamic addFilter(String filterName,
                                            Filter filter)
```
    Description copied from interface: ServletContext
    
    Registers the given filter instance with this ServletContext under the given filterName.
    The registered filter may be further configured via the returned FilterRegistration object.
    If this ServletContext already contains a preliminary FilterRegistration for a filter with the given filterName, it will be completed (by assigning the class name of the given filter instance to it) and returned.
    
    Specified by:
    
    addFilter in interface ServletContext
    
    Parameters:
    
    filterName - the name of the filter
    
    filter - the filter instance to register
    
    Returns:
    
    a FilterRegistration object that may be used to further configure the given filter, or null if this ServletContext already contains a complete FilterRegistration for a filter with the given filterName or if the same filter instance has already been registered with this or another ServletContext in the same container
  - addFilter
```
public FilterRegistration.Dynamic addFilter(String filterName,
                                            Class<? extends Filter> filterClass)
```
    Description copied from interface: ServletContext
    
    Adds the filter with the given name and class type to this servlet context.
    The registered filter may be further configured via the returned FilterRegistration object.
    If this ServletContext already contains a preliminary FilterRegistration for a filter with the given filterName, it will be completed (by assigning the name of the given filterClass to it) and returned.
    This method supports resource injection if the given filterClass represents a Managed Bean. See the Java EE platform and JSR 299 specifications for additional details about Managed Beans and resource injection.
    
    Specified by:
    
    addFilter in interface ServletContext
    
    Parameters:
    
    filterName - the name of the filter
    
    filterClass - the class object from which the filter will be instantiated
    
    Returns:
    
    a FilterRegistration object that may be used to further configure the registered filter, or null if this ServletContext already contains a complete FilterRegistration for a filter with the given filterName
  - createFilter
```
public <T extends Filter> T createFilter(Class<T> clazz)
                                  throws ServletException
```
    Description copied from interface: ServletContext
    
    Instantiates the given Filter class.
    The returned Filter instance may be further customized before it is registered with this ServletContext via a call to ServletContext.addFilter(String,Filter).
    The given Filter class must define a zero argument constructor, which is used to instantiate it.
    This method supports resource injection if the given clazz represents a Managed Bean. See the Java EE platform and JSR 299 specifications for additional details about Managed Beans and resource injection.
    
    Specified by:
    
    createFilter in interface ServletContext
    
    Type Parameters:
    
    T - the class of the Filter to create
    
    Parameters:
    
    clazz - the Filter class to instantiate
    
    Returns:
    
    the new Filter instance
    
    Throws:
    
    ServletException - if the given clazz fails to be instantiated
  - getFilterRegistration
```
public FilterRegistration getFilterRegistration(String filterName)
```
    Description copied from interface: ServletContext
    
    Gets the FilterRegistration corresponding to the filter with the given filterName.
    
    Specified by:
    
    getFilterRegistration in interface ServletContext
    
    Parameters:
    
    filterName - the name of a filter
    
    Returns:
    
    the (complete or preliminary) FilterRegistration for the filter with the given filterName, or null if no FilterRegistration exists under that name
  - getFilterRegistrations
```
public Map<String,? extends FilterRegistration> getFilterRegistrations()
```
    Description copied from interface: ServletContext
    
    Gets a (possibly empty) Map of the FilterRegistration objects (keyed by filter name) corresponding to all filters registered with this ServletContext.
    The returned Map includes the FilterRegistration objects corresponding to all declared and annotated filters, as well as the FilterRegistration objects corresponding to all filters that have been added via one of the addFilter methods.
    Any changes to the returned Map must not affect this ServletContext.
    
    Specified by:
    
    getFilterRegistrations in interface ServletContext
    
    Returns:
    
    Map of the (complete and preliminary) FilterRegistration objects corresponding to all filters currently registered with this ServletContext
  - getSessionCookieConfig
```
public SessionCookieConfigImpl getSessionCookieConfig()
```
    Description copied from interface: ServletContext
    
    Gets the SessionCookieConfig object through which various properties of the session tracking cookies created on behalf of this ServletContext may be configured.
    Repeated invocations of this method will return the same SessionCookieConfig instance.
    
    Specified by:
    
    getSessionCookieConfig in interface ServletContext
    
    Returns:
    
    the SessionCookieConfig object through which various properties of the session tracking cookies created on behalf of this ServletContext may be configured
  - setSessionTrackingModes
```
public void setSessionTrackingModes(Set<SessionTrackingMode> sessionTrackingModes)
```
    Description copied from interface: ServletContext
    
    Sets the session tracking modes that are to become effective for this ServletContext.
    The given sessionTrackingModes replaces any session tracking modes set by a previous invocation of this method on this ServletContext.
    
    Specified by:
    
    setSessionTrackingModes in interface ServletContext
    
    Parameters:
    
    sessionTrackingModes - the set of session tracking modes to become effective for this ServletContext
  - getDefaultSessionTrackingModes
```
public Set<SessionTrackingMode> getDefaultSessionTrackingModes()
```
    Description copied from interface: ServletContext
    
    Gets the session tracking modes that are supported by default for this ServletContext.
    The returned set is not backed by the ServletContext object, so changes in the returned set are not reflected in the ServletContext object, and vice-versa.
    
    Specified by:
    
    getDefaultSessionTrackingModes in interface ServletContext
    
    Returns:
    
    set of the session tracking modes supported by default for this ServletContext
  - getEffectiveSessionTrackingModes
```
public Set<SessionTrackingMode> getEffectiveSessionTrackingModes()
```
    Description copied from interface: ServletContext
    
    Gets the session tracking modes that are in effect for this ServletContext.
    The session tracking modes in effect are those provided to setSessionTrackingModes.
    The returned set is not backed by the ServletContext object, so changes in the returned set are not reflected in the ServletContext object, and vice-versa.
    
    Specified by:
    
    getEffectiveSessionTrackingModes in interface ServletContext
    
    Returns:
    
    set of the session tracking modes in effect for this ServletContext
  - addListener
```
public void addListener(String className)
```
    Description copied from interface: ServletContext
    Adds the listener with the given class name to this ServletContext.
    The class with the given name will be loaded using the classloader associated with the application represented by this ServletContext, and must implement one or more of the following interfaces:
    If this ServletContext was passed to ServletContainerInitializer.onStartup(java.util.Set<java.lang.Class<?>>, javax.servlet.ServletContext), then the class with the given name may also implement ServletContextListener, in addition to the interfaces listed above.
    As part of this method call, the container must load the class with the specified class name to ensure that it implements one of the required interfaces.
    If the class with the given name implements a listener interface whose invocation order corresponds to the declaration order (i.e., if it implements ServletRequestListener, ServletContextListener, or HttpSessionListener), then the new listener will be added to the end of the ordered list of listeners of that interface.
    This method supports resource injection if the class with the given className represents a Managed Bean. See the Java EE platform and JSR 299 specifications for additional details about Managed Beans and resource injection.
    Specified by:
    
    addListener in interface ServletContext
    
    Parameters:
    
    className - the fully qualified class name of the listener
  - addListener
```
public <T extends EventListener> void addListener(T t)
```
    Description copied from interface: ServletContext
    Adds the given listener to this ServletContext.
    The given listener must be an instance of one or more of the following interfaces:
    If this ServletContext was passed to ServletContainerInitializer.onStartup(java.util.Set<java.lang.Class<?>>, javax.servlet.ServletContext), then the given listener may also be an instance of ServletContextListener, in addition to the interfaces listed above.
    If the given listener is an instance of a listener interface whose invocation order corresponds to the declaration order (i.e., if it is an instance of ServletRequestListener, ServletContextListener, or HttpSessionListener), then the listener will be added to the end of the ordered list of listeners of that interface.
    Specified by:
    
    addListener in interface ServletContext
    
    Type Parameters:
    
    T - the class of the EventListener to add
    
    Parameters:
    
    t - the listener to be added
  - addListener
```
public void addListener(Class<? extends EventListener> listenerClass)
```
    Description copied from interface: ServletContext
    Adds a listener of the given class type to this ServletContext.
    The given listenerClass must implement one or more of the following interfaces:
    If this ServletContext was passed to ServletContainerInitializer.onStartup(java.util.Set<java.lang.Class<?>>, javax.servlet.ServletContext), then the given listenerClass may also implement ServletContextListener, in addition to the interfaces listed above.
    If the given listenerClass implements a listener interface whose invocation order corresponds to the declaration order (i.e., if it implements ServletRequestListener, ServletContextListener, or HttpSessionListener), then the new listener will be added to the end of the ordered list of listeners of that interface.
    This method supports resource injection if the given listenerClass represents a Managed Bean. See the Java EE platform and JSR 299 specifications for additional details about Managed Beans and resource injection.
    Specified by:
    
    addListener in interface ServletContext
    
    Parameters:
    
    listenerClass - the listener class to be instantiated
  - createListener
```
public <T extends EventListener> T createListener(Class<T> clazz)
                                           throws ServletException
```
    Description copied from interface: ServletContext
    
    Instantiates the given EventListener class.
    The specified EventListener class must implement at least one of the ServletContextListener, ServletContextAttributeListener, ServletRequestListener, ServletRequestAttributeListener, HttpSessionAttributeListener, HttpSessionIdListener, or HttpSessionListener interfaces.
    The returned EventListener instance may be further customized before it is registered with this ServletContext via a call to ServletContext.addListener(EventListener).
    The given EventListener class must define a zero argument constructor, which is used to instantiate it.
    This method supports resource injection if the given clazz represents a Managed Bean. See the Java EE platform and JSR 299 specifications for additional details about Managed Beans and resource injection.
    
    Specified by:
    
    createListener in interface ServletContext
    
    Type Parameters:
    
    T - the class of the EventListener to create
    
    Parameters:
    
    clazz - the EventListener class to instantiate
    
    Returns:
    
    the new EventListener instance
    
    Throws:
    
    ServletException - if the given clazz fails to be instantiated
  - getJspConfigDescriptor
```
public JspConfigDescriptor getJspConfigDescriptor()
```
    Description copied from interface: ServletContext
    
    Gets the <jsp-config> related configuration that was aggregated from the web.xml and web-fragment.xml descriptor files of the web application represented by this ServletContext.
    
    Specified by:
    
    getJspConfigDescriptor in interface ServletContext
    
    Returns:
    
    the <jsp-config> related configuration that was aggregated from the web.xml and web-fragment.xml descriptor files of the web application represented by this ServletContext, or null if no such configuration exists
    
    See Also:
    
    JspConfigDescriptor
  - getClassLoader
```
public ClassLoader getClassLoader()
```
    Description copied from interface: ServletContext
    
    Gets the class loader of the web application represented by this ServletContext.
    If a security manager exists, and the caller's class loader is not the same as, or an ancestor of the requested class loader, then the security manager's checkPermission method is called with a RuntimePermission("getClassLoader") permission to check whether access to the requested class loader should be granted.
    
    Specified by:
    
    getClassLoader in interface ServletContext
    
    Returns:
    
    the class loader of the web application represented by this ServletContext
  - declareRoles
```
public void declareRoles(String... roleNames)
```
    Description copied from interface: ServletContext
    
    Declares role names that are tested using isUserInRole.
    Roles that are implicitly declared as a result of their use within the setServletSecurity or setRunAsRole methods of the ServletRegistration interface need not be declared.
    
    Specified by:
    
    declareRoles in interface ServletContext
    
    Parameters:
    
    roleNames - the role names being declared
  - addJspFile
```
public ServletRegistration.Dynamic addJspFile(String servletName,
                                              String jspFile)
```
    Description copied from interface: ServletContext
    
    Adds the servlet with the given jsp file to this servlet context.
    The registered servlet may be further configured via the returned ServletRegistration object.
    If this ServletContext already contains a preliminary ServletRegistration for a servlet with the given servletName, it will be completed (by assigning the given jspFile to it) and returned.
    
    Specified by:
    
    addJspFile in interface ServletContext
    
    Parameters:
    
    servletName - the name of the servlet
    
    jspFile - the full path to a JSP file within the web application beginning with a `/'.
    
    Returns:
    
    a ServletRegistration object that may be used to further configure the registered servlet, or null if this ServletContext already contains a complete ServletRegistration for a servlet with the given servletName
  - getSessionTimeout
```
public int getSessionTimeout()
```
    Description copied from interface: ServletContext
    
    Gets the session timeout in minutes that are supported by default for this ServletContext.
    
    Specified by:
    
    getSessionTimeout in interface ServletContext
    
    Returns:
    
    the session timeout in minutes that are supported by default for this ServletContext
  - setSessionTimeout
```
public void setSessionTimeout(int sessionTimeout)
```
    Description copied from interface: ServletContext
    
    Sets the session timeout in minutes for this ServletContext.
    
    Specified by:
    
    setSessionTimeout in interface ServletContext
    
    Parameters:
    
    sessionTimeout - session timeout in minutes
  - getRequestCharacterEncoding
```
public String getRequestCharacterEncoding()
```
    Description copied from interface: ServletContext
    
    Gets the request character encoding that are supported by default for this ServletContext. This method returns null if no request encoding character encoding has been specified in deployment descriptor or container specific configuration (for all web applications in the container).
    
    Specified by:
    
    getRequestCharacterEncoding in interface ServletContext
    
    Returns:
    
    the request character encoding that are supported by default for this ServletContext
  - setRequestCharacterEncoding
```
public void setRequestCharacterEncoding(String encoding)
```
    Description copied from interface: ServletContext
    
    Sets the request character encoding for this ServletContext.
    
    Specified by:
    
    setRequestCharacterEncoding in interface ServletContext
    
    Parameters:
    
    encoding - request character encoding
  - getResponseCharacterEncoding
```
public String getResponseCharacterEncoding()
```
    Description copied from interface: ServletContext
    
    Gets the response character encoding that are supported by default for this ServletContext. This method returns null if no response encoding character encoding has been specified in deployment descriptor or container specific configuration (for all web applications in the container).
    
    Specified by:
    
    getResponseCharacterEncoding in interface ServletContext
    
    Returns:
    
    the request character encoding that are supported by default for this ServletContext
  - setResponseCharacterEncoding
```
public void setResponseCharacterEncoding(String encoding)
```
    Description copied from interface: ServletContext
    
    Sets the response character encoding for this ServletContext.
    
    Specified by:
    
    setResponseCharacterEncoding in interface ServletContext
    
    Parameters:
    
    encoding - response character encoding
  - getVirtualServerName
```
public String getVirtualServerName()
```
    Description copied from interface: ServletContext
    
    Returns the configuration name of the logical host on which the ServletContext is deployed. Servlet containers may support multiple logical hosts. This method must return the same name for all the servlet contexts deployed on a logical host, and the name returned by this method must be distinct, stable per logical host, and suitable for use in associating server configuration information with the logical host. The returned value is NOT expected or required to be equivalent to a network address or hostname of the logical host.
    
    Specified by:
    
    getVirtualServerName in interface ServletContext
    
    Returns:
    
    a String containing the configuration name of the logical host on which the servlet context is deployed.
  - getSession
```
public HttpSessionImpl getSession(String sessionId)
```
    Gets the session with the specified ID if it exists
    
    Parameters:
    
    sessionId - The session ID
    
    Returns:
    
    The session
  - getSession
```
public HttpSessionImpl getSession(ServletContextImpl originalServletContext,
                                  HttpServerExchange exchange,
                                  boolean create)
```
  - getSession
```
public HttpSessionImpl getSession(HttpServerExchange exchange,
                                  boolean create)
```
    Gets the session
    
    Parameters:
    
    create -
    
    Returns:
  - updateSessionAccessTime
```
public void updateSessionAccessTime(HttpServerExchange exchange)
```
  - getDeployment
```
public Deployment getDeployment()
```
  - getSessionConfig
```
public SessionConfig getSessionConfig()
```
  - destroy
```
public void destroy()
```
  - setDefaultSessionTrackingModes
```
public void setDefaultSessionTrackingModes(HashSet<SessionTrackingMode> sessionTrackingModes)
```

Class ServletContextImpl

Field Summary

Fields inherited from interface javax.servlet.ServletContext

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

ServletContextImpl

Method Detail

initDone

getContextPath

getContext

getMajorVersion

getMinorVersion

getEffectiveMajorVersion

getEffectiveMinorVersion

getMimeType

getResourcePaths

getResource

getResourceAsStream

getRequestDispatcher

getNamedDispatcher

getServlet

getServlets

getServletNames

log

log

log

getRealPath

getServerInfo

getInitParameter

getInitParameterNames

setInitParameter

getAttribute

getAttributeNames

setAttribute

removeAttribute

getServletContextName

addServlet

addServlet

addServlet

addServlet

createServlet

getServletRegistration

getServletRegistrations

addFilter

addFilter

addFilter

createFilter

getFilterRegistration

getFilterRegistrations

getSessionCookieConfig

setSessionTrackingModes

getDefaultSessionTrackingModes

getEffectiveSessionTrackingModes

addListener

addListener

addListener

createListener

getJspConfigDescriptor

getClassLoader

declareRoles

addJspFile

getSessionTimeout

setSessionTimeout

getRequestCharacterEncoding

setRequestCharacterEncoding

getResponseCharacterEncoding

setResponseCharacterEncoding

getVirtualServerName

getSession

getSession

getSession

updateSessionAccessTime

getDeployment

getSessionConfig

destroy

setDefaultSessionTrackingModes