org.apache.struts2.jasper.servlet
Class JspCServletContext

java.lang.Object
  extended by org.apache.struts2.jasper.servlet.JspCServletContext
All Implemented Interfaces:
javax.servlet.ServletContext

public class JspCServletContext
extends java.lang.Object
implements javax.servlet.ServletContext

Simple ServletContext implementation without HTTP-specific methods.

Author:
Peter Rossbach (pr@webapp.de)

Field Summary
protected  java.util.Hashtable myAttributes
          Servlet context attributes.
protected  java.io.PrintWriter myLogWriter
          The log writer we will write log messages to.
 
Constructor Summary
JspCServletContext(java.io.PrintWriter aLogWriter, ClassLoaderInterface classLoaderInterface)
          Create a new instance of this ServletContext implementation.
 
Method Summary
 java.lang.Object getAttribute(java.lang.String name)
          Return the specified context attribute, if any.
 java.util.Enumeration getAttributeNames()
          Return an enumeration of context attribute names.
 javax.servlet.ServletContext getContext(java.lang.String uripath)
          Return the servlet context for the specified path.
 java.lang.String getContextPath()
          Return the context path.
 java.lang.String getInitParameter(java.lang.String name)
          Return the specified context initialization parameter.
 java.util.Enumeration getInitParameterNames()
          Return an enumeration of the names of context initialization parameters.
 int getMajorVersion()
          Return the Servlet API major version number.
 java.lang.String getMimeType(java.lang.String file)
          Return the MIME type for the specified filename.
 int getMinorVersion()
          Return the Servlet API minor version number.
 javax.servlet.RequestDispatcher getNamedDispatcher(java.lang.String name)
          Return a request dispatcher for the specified servlet name.
 java.lang.String getRealPath(java.lang.String path)
          Return the real path for the specified context-relative virtual path.
 javax.servlet.RequestDispatcher getRequestDispatcher(java.lang.String path)
          Return a request dispatcher for the specified context-relative path.
 java.net.URL getResource(java.lang.String path)
          Return a URL object of a resource that is mapped to the specified context-relative path.
 java.io.InputStream getResourceAsStream(java.lang.String path)
          Return an InputStream allowing access to the resource at the specified context-relative path.
 java.util.Set getResourcePaths(java.lang.String path)
          Return the set of resource paths for the "directory" at the specified context path.
 java.lang.String getServerInfo()
          Return descriptive information about this server.
 javax.servlet.Servlet getServlet(java.lang.String name)
          Deprecated. This method has been deprecated with no replacement
 java.lang.String getServletContextName()
          Return the name of this servlet context.
 java.util.Enumeration getServletNames()
          Deprecated. This method has been deprecated with no replacement
 java.util.Enumeration getServlets()
          Deprecated. This method has been deprecated with no replacement
 void log(java.lang.Exception exception, java.lang.String message)
          Deprecated. Use log(String,Throwable) instead
 void log(java.lang.String message)
          Log the specified message.
 void log(java.lang.String message, java.lang.Throwable exception)
          Log the specified message and exception.
 void removeAttribute(java.lang.String name)
          Remove the specified context attribute.
 void setAttribute(java.lang.String name, java.lang.Object value)
          Set or replace the specified context attribute.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

myAttributes

protected java.util.Hashtable myAttributes
Servlet context attributes.


myLogWriter

protected java.io.PrintWriter myLogWriter
The log writer we will write log messages to.

Constructor Detail

JspCServletContext

public JspCServletContext(java.io.PrintWriter aLogWriter,
                          ClassLoaderInterface classLoaderInterface)
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 java.lang.Object getAttribute(java.lang.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 java.util.Enumeration getAttributeNames()
Return an enumeration of context attribute names.

Specified by:
getAttributeNames in interface javax.servlet.ServletContext

getContext

public javax.servlet.ServletContext getContext(java.lang.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 '/'

getContextPath

public java.lang.String getContextPath()
Return the context path.


getInitParameter

public java.lang.String getInitParameter(java.lang.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 java.util.Enumeration 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 java.lang.String getMimeType(java.lang.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

getNamedDispatcher

public javax.servlet.RequestDispatcher getNamedDispatcher(java.lang.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 java.lang.String getRealPath(java.lang.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(java.lang.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 java.net.URL getResource(java.lang.String path)
                         throws java.net.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:
java.net.MalformedURLException - if the resource path is not properly formed

getResourceAsStream

public java.io.InputStream getResourceAsStream(java.lang.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 java.util.Set getResourcePaths(java.lang.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 java.lang.String getServerInfo()
Return descriptive information about this server.

Specified by:
getServerInfo in interface javax.servlet.ServletContext

getServlet

public javax.servlet.Servlet getServlet(java.lang.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 java.lang.String getServletContextName()
Return the name of this servlet context.

Specified by:
getServletContextName in interface javax.servlet.ServletContext

getServletNames

public java.util.Enumeration 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 java.util.Enumeration 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(java.lang.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(java.lang.Exception exception,
                java.lang.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(java.lang.String message,
                java.lang.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(java.lang.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(java.lang.String name,
                         java.lang.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


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