Package org.glassfish.grizzly.servlet

Class WebappContext

java.lang.Object
org.glassfish.grizzly.servlet.WebappContext
All Implemented Interfaces:
javax.servlet.ServletContext
public class WebappContext extends Object implements javax.servlet.ServletContext

This class acts as the foundation for registering listeners, servlets, and filters in an embedded environment.

Additionally, this class implements the the requirements set forth by the Servlet 2.5 specification of ServletContext, however, it also exposes the dynamic registration API of Servlet 3.0.

TODO: Provide code examples once the api firms up a bit.

Since:
2.2

  • Field Details

  • Constructor Details

    • WebappContext

      protected WebappContext()

    • WebappContext

      public WebappContext(String displayName)

      Creates a simple WebappContext with the root being "/".

      Parameters:
      displayName -

    • WebappContext

      public WebappContext(String displayName, String contextPath)

    • WebappContext

      public WebappContext(String displayName, String contextPath, String basePath)

  • Method Details

    • setServerInfo

      public void setServerInfo(String serverInfo)
      Set the value of the Server header to be sent in the response. If the value is a zero-length String or null, no Server header will be sent.
      Parameters:
      serverInfo - the string to be sent with the response.

    • deploy

      public void deploy(org.glassfish.grizzly.http.server.HttpServer targetServer)
      Parameters:
      targetServer -

    • undeploy

      public void undeploy()

    • addContextInitParameter

      public void addContextInitParameter(String name, String value)
      Parameters:
      name -
      value -

    • removeContextInitParameter

      public void removeContextInitParameter(String name)
      Parameters:
      name -

    • clearContextInitParameters

      public void clearContextInitParameters()

    • addFilter

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

      Specified by:
      addFilter in interface javax.servlet.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 WebappContext already contains a complete FilterRegistration for a filter with the given filterName
      Throws:
      IllegalStateException - if this WebappContext has already been initialized

    • addFilter

      public FilterRegistration addFilter(String filterName, javax.servlet.Filter filter)
      Registers the given filter instance with this WebappContext under the given filterName.

      The registered filter may be further configured via the returned FilterRegistration object.

      If this WebappContext 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 javax.servlet.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 WebappContext 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 WebappContext in the same container
      Throws:
      IllegalStateException - if this WebappContext has already been initialized
      Since:
      Servlet 3.0

    • addFilter

      public FilterRegistration addFilter(String filterName, String className)
      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 WebappContext.

      If this WebappContext 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.

      Specified by:
      addFilter in interface javax.servlet.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 WebappContext already contains a complete FilterRegistration for a filter with the given filterName
      Throws:
      IllegalStateException - if this WebappContext has already been initialized

    • addServlet

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

      Specified by:
      addServlet in interface javax.servlet.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 WebappContext already contains a complete ServletRegistration for the given servletName
      Throws:
      IllegalStateException - if this WebappContext has already been initialized

    • addServlet

      public ServletRegistration addServlet(String servletName, javax.servlet.Servlet servlet)
      Registers the given servlet instance with this WebappContext under the given servletName.

      The registered servlet may be further configured via the returned ServletRegistration object.

      If this WebappContext 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 javax.servlet.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 WebappContext 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 WebappContext in the same container
      Throws:
      IllegalStateException - if this WebappContext has already been initialized
      IllegalArgumentException - if the given servlet instance implements SingleThreadModel

    • addServlet

      public ServletRegistration addServlet(String servletName, String className)
      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 WebappContext.

      If this WebappContext 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.

      Specified by:
      addServlet in interface javax.servlet.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 WebappContext already contains a complete ServletRegistration for a servlet with the given servletName
      Throws:
      IllegalStateException - if this WebappContext has already been initialized

    • getFilterRegistration

      public FilterRegistration getFilterRegistration(String name)
      Gets the FilterRegistration corresponding to the filter with the given filterName.
      Specified by:
      getFilterRegistration in interface javax.servlet.ServletContext
      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()
      Gets a (possibly empty) Map of the FilterRegistration objects (keyed by filter name) corresponding to all filters registered with this WebappContext.

      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 WebappContext.

      Specified by:
      getFilterRegistrations in interface javax.servlet.ServletContext
      Returns:
      Map of the (complete and preliminary) FilterRegistration objects corresponding to all filters currently registered with this WebappContext

    • getServletRegistration

      public ServletRegistration getServletRegistration(String name)
      Gets the ServletRegistration corresponding to the servlet with the given servletName.
      Specified by:
      getServletRegistration in interface javax.servlet.ServletContext
      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()
      Gets a (possibly empty) Map of the ServletRegistration objects (keyed by servlet name) corresponding to all servlets registered with this WebappContext.

      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 methods.

      If permitted, any changes to the returned Map must not affect this WebappContext.

      Specified by:
      getServletRegistrations in interface javax.servlet.ServletContext
      Returns:
      Map of the (complete and preliminary) ServletRegistration objects corresponding to all servlets currently registered with this WebappContext
      Since:
      Servlet 3.0

    • addListener

      public void addListener(Class<? extends EventListener> listenerClass)
      Adds the given listener class to this WebappContext.

      The given listener must be an instance of one or more of the following interfaces:

      • ServletContextAttributeListener
      • ServletRequestListener
      • ServletRequestAttributeListener
      • HttpSessionListener
      • HttpSessionAttributeListener

      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 javax.servlet.ServletContext
      Throws:
      IllegalArgumentException - if the given listener is not an instance of any of the above interfaces
      IllegalStateException - if this WebappContext has already been initialized

    • addListener

      public void addListener(String className)
      Adds the listener with the given class name to this WebappContext.

      The class with the given name will be loaded using the classloader associated with the application represented by this WebappContext, and must implement one or more of the following interfaces:

      • ServletContextAttributeListener
      • ServletRequestListener
      • ServletRequestAttributeListener
      • HttpSessionListener
      • HttpSessionAttributeListener

      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.

      Specified by:
      addListener in interface javax.servlet.ServletContext
      Parameters:
      className - the fully qualified class name of the listener
      Throws:
      IllegalArgumentException - if the class with the given name does not implement any of the above interfaces
      IllegalStateException - if this WebappContext has already been initialized

    • addListener

      public <T extends EventListener> void addListener(T eventListener)
      Specified by:
      addListener in interface javax.servlet.ServletContext

    • createServlet

      public <T extends javax.servlet.Servlet> T createServlet(Class<T> clazz) throws javax.servlet.ServletException
      Specified by:
      createServlet in interface javax.servlet.ServletContext
      Throws:
      javax.servlet.ServletException

    • createFilter

      public <T extends javax.servlet.Filter> T createFilter(Class<T> clazz) throws javax.servlet.ServletException
      Specified by:
      createFilter in interface javax.servlet.ServletContext
      Throws:
      javax.servlet.ServletException

    • 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

    • declareRoles

      public void declareRoles(String... roleNames)
      Specified by:
      declareRoles in interface javax.servlet.ServletContext

    • getContextPath

      public String getContextPath()
      Specified by:
      getContextPath in interface javax.servlet.ServletContext

    • getContext

      public javax.servlet.ServletContext getContext(String uri)
      Specified by:
      getContext in interface javax.servlet.ServletContext

    • getMajorVersion

      public int getMajorVersion()
      Specified by:
      getMajorVersion in interface javax.servlet.ServletContext

    • getMinorVersion

      public int getMinorVersion()
      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

    • getMimeType

      public String getMimeType(String file)
      Specified by:
      getMimeType in interface javax.servlet.ServletContext

    • getResourcePaths

      public Set<String> getResourcePaths(String path)
      Specified by:
      getResourcePaths in interface javax.servlet.ServletContext

    • getResource

      public URL getResource(String path) throws MalformedURLException
      Specified by:
      getResource in interface javax.servlet.ServletContext
      Throws:
      MalformedURLException

    • getResourceAsStream

      public InputStream getResourceAsStream(String path)
      Specified by:
      getResourceAsStream in interface javax.servlet.ServletContext

    • getRequestDispatcher

      public javax.servlet.RequestDispatcher getRequestDispatcher(String path)
      Specified by:
      getRequestDispatcher in interface javax.servlet.ServletContext

    • getNamedDispatcher

      public javax.servlet.RequestDispatcher getNamedDispatcher(String name)
      Specified by:
      getNamedDispatcher in interface javax.servlet.ServletContext

    • getServlet

      @Deprecated public javax.servlet.Servlet getServlet(String name) throws javax.servlet.ServletException
      Deprecated.
      Specified by:
      getServlet in interface javax.servlet.ServletContext
      Throws:
      javax.servlet.ServletException

    • getServlets

      @Deprecated public Enumeration<javax.servlet.Servlet> getServlets()
      Deprecated.
      Specified by:
      getServlets in interface javax.servlet.ServletContext

    • getServletNames

      @Deprecated public Enumeration<String> getServletNames()
      Deprecated.
      Specified by:
      getServletNames in interface javax.servlet.ServletContext

    • log

      public void log(String message)
      Specified by:
      log in interface javax.servlet.ServletContext

    • log

      @Deprecated public void log(Exception e, String message)
      Deprecated.
      Specified by:
      log in interface javax.servlet.ServletContext

    • log

      public void log(String message, Throwable throwable)
      Specified by:
      log in interface javax.servlet.ServletContext

    • getRealPath

      public String getRealPath(String path)
      Specified by:
      getRealPath in interface javax.servlet.ServletContext

    • getVirtualServerName

      public String getVirtualServerName()
      Specified by:
      getVirtualServerName in interface javax.servlet.ServletContext

    • getServerInfo

      public String getServerInfo()
      Specified by:
      getServerInfo in interface javax.servlet.ServletContext

    • getInitParameter

      public String getInitParameter(String name)
      Specified by:
      getInitParameter in interface javax.servlet.ServletContext

    • getInitParameterNames

      public Enumeration<String> getInitParameterNames()
      Specified by:
      getInitParameterNames in interface javax.servlet.ServletContext

    • setInitParameter

      public boolean setInitParameter(String name, String value)
      Specified by:
      setInitParameter in interface javax.servlet.ServletContext

    • getAttribute

      public Object getAttribute(String name)
      Specified by:
      getAttribute in interface javax.servlet.ServletContext

    • getAttributeNames

      public Enumeration<String> getAttributeNames()
      Specified by:
      getAttributeNames in interface javax.servlet.ServletContext

    • setAttribute

      public void setAttribute(String name, Object value)
      Specified by:
      setAttribute in interface javax.servlet.ServletContext

    • removeAttribute

      public void removeAttribute(String name)
      Specified by:
      removeAttribute in interface javax.servlet.ServletContext

    • getServletContextName

      public String getServletContextName()
      Specified by:
      getServletContextName 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

    • 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

    • normalize

      protected String normalize(String path)
      Return a context-relative path, beginning with a "/", that represents the canonical version of the specified path after ".." and "." elements are resolved out. If the specified path attempts to go outside the boundaries of the current context (i.e. too many ".." path elements are present), return null instead.
      Parameters:
      path - Path to be normalized

    • getBasePath

      protected String getBasePath()
      Returns:

    • setDispatcherHelper

      protected void setDispatcherHelper(org.glassfish.grizzly.http.server.util.DispatcherHelper dispatcherHelper)
      Parameters:
      dispatcherHelper -

    • setSessionManager

      public void setSessionManager(org.glassfish.grizzly.http.server.SessionManager sessionManager)
      Sets the SessionManager that should be used by this WebappContext. The default is an instance of ServletSessionManager
      Parameters:
      sessionManager - an implementation of SessionManager

    • getEventListeners

      protected EventListener[] getEventListeners()
      Returns:

    • addFilterMap

      protected void addFilterMap(FilterMap filterMap, boolean isMatchAfter)
      Add a filter mapping to this Context.
      Parameters:
      filterMap - The filter mapping to be added
      isMatchAfter - true if the given filter mapping should be matched against requests after any declared filter mappings of this servlet context, and false if it is supposed to be matched before any declared filter mappings of this servlet context
      Throws:
      IllegalArgumentException - if the specified filter name does not match an existing filter definition, or the filter mapping is malformed

    • getFilterMaps

      protected List<FilterMap> getFilterMaps()

    • removeFilterMaps

      protected void removeFilterMaps()
      Removes any filter mappings from this Context.

    • getServletNameFilterMappings

      protected Collection<String> getServletNameFilterMappings(String filterName)
      Gets the current servlet name mappings of the Filter with the given name.

    • getUrlPatternFilterMappings

      protected Collection<String> getUrlPatternFilterMappings(String filterName)
      Gets the current URL pattern mappings of the Filter with the given name.

    • getFilterChainFactory

      protected FilterChainFactory getFilterChainFactory()

    • unregisterFilter

      protected void unregisterFilter(javax.servlet.Filter f)

    • unregisterAllFilters

      protected void unregisterAllFilters()

    • destroyFilters

      protected void destroyFilters()

    • createServletInstance

      protected javax.servlet.Servlet createServletInstance(ServletRegistration registration) throws Exception
      Instantiates the given Servlet class.
      Returns:
      the new Servlet instance
      Throws:
      Exception

    • createServletInstance

      protected javax.servlet.Servlet createServletInstance(Class<? extends javax.servlet.Servlet> servletClass) throws Exception
      Instantiates the given Servlet class.
      Returns:
      the new Servlet instance
      Throws:
      Exception

    • createFilterInstance

      protected javax.servlet.Filter createFilterInstance(FilterRegistration registration) throws Exception
      Instantiates the given Filter class.
      Returns:
      the new Filter instance
      Throws:
      Exception

    • createFilterInstance

      protected javax.servlet.Filter createFilterInstance(Class<? extends javax.servlet.Filter> filterClass) throws Exception
      Instantiates the given Filter class.
      Returns:
      the new Filter instance
      Throws:
      Exception

    • createEventListenerInstance

      protected EventListener createEventListenerInstance(Class<? extends EventListener> eventListenerClass) throws Exception
      Instantiates the given EventListener class.
      Returns:
      the new EventListener instance
      Throws:
      Exception

    • createEventListenerInstance

      protected EventListener createEventListenerInstance(String eventListenerClassname) throws Exception
      Instantiates the given EventListener class.
      Returns:
      the new EventListener instance
      Throws:
      Exception

    • createHttpUpgradeHandlerInstance

      public <T extends javax.servlet.http.HttpUpgradeHandler> T createHttpUpgradeHandlerInstance(Class<T> clazz) throws Exception
      Instantiates the given HttpUpgradeHandler class.
      Type Parameters:
      T -
      Parameters:
      clazz -
      Returns:
      a new T instance
      Throws:
      Exception

    • validateURLPattern

      protected boolean validateURLPattern(String urlPattern)
      Validate the syntax of a proposed <url-pattern> for conformance with specification requirements.
      Parameters:
      urlPattern - URL pattern to be validated