org.apache.jasper.servlet

Class JspCServletContext

Implemented Interfaces:
ServletContext

public class JspCServletContext
extends java.lang.Object
implements ServletContext

Simple ServletContext implementation without HTTP-specific methods.

Author:
Peter Rossbach (pr@webapp.de)

Field Summary

protected Hashtable
myAttributes
Servlet context attributes.
protected PrintWriter
myLogWriter
The log writer we will write log messages to.
protected URL
myResourceBaseURL
The base URL (document root) for this context.

Constructor Summary

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

Method Summary

Object
getAttribute(String name)
Return the specified context attribute, if any.
Enumeration
getAttributeNames()
Return an enumeration of context attribute names.
ServletContext
getContext(String uripath)
Return the servlet context for the specified path.
String
getInitParameter(String name)
Return the specified context initialization parameter.
Enumeration
getInitParameterNames()
Return an enumeration of the names of context initialization parameters.
int
getMajorVersion()
Return the Servlet API major version number.
String
getMimeType(String file)
Return the MIME type for the specified filename.
int
getMinorVersion()
Return the Servlet API minor version number.
RequestDispatcher
getNamedDispatcher(String name)
Return a request dispatcher for the specified servlet name.
String
getRealPath(String path)
Return the real path for the specified context-relative virtual path.
RequestDispatcher
getRequestDispatcher(String path)
Return a request dispatcher for the specified context-relative path.
URL
getResource(String path)
Return a URL object of a resource that is mapped to the specified context-relative path.
InputStream
getResourceAsStream(String path)
Return an InputStream allowing access to the resource at the specified context-relative path.
Set
getResourcePaths(String path)
Return the set of resource paths for the "directory" at the specified context path.
String
getServerInfo()
Return descriptive information about this server.
Servlet
getServlet(String name)
Deprecated. This method has been deprecated with no replacement
String
getServletContextName()
Return the name of this servlet context.
Enumeration
getServletNames()
Deprecated. This method has been deprecated with no replacement
Enumeration
getServlets()
Deprecated. This method has been deprecated with no replacement
void
log(Exception exception, String message)
Deprecated. Use log(String,Throwable) instead
void
log(String message)
Log the specified message.
void
log(String message, Throwable exception)
Log the specified message and exception.
void
removeAttribute(String name)
Remove the specified context attribute.
void
setAttribute(String name, Object value)
Set or replace the specified context attribute.

Field Details

myAttributes

protected Hashtable myAttributes
Servlet context attributes.


myLogWriter

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


myResourceBaseURL

protected URL myResourceBaseURL
The base URL (document root) for this context.

Constructor Details

JspCServletContext

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

Parameters:
aLogWriter - PrintWriter which is used for log() calls
aResourceBaseURL - Resource base URL

Method Details

getAttribute

public Object getAttribute(String name)
Return the specified context attribute, if any.

Parameters:
name - Name of the requested attribute


getAttributeNames

public Enumeration getAttributeNames()
Return an enumeration of context attribute names.


getContext

public ServletContext getContext(String uripath)
Return the servlet context for the specified path.

Parameters:
uripath - Server-relative path starting with '/'


getInitParameter

public String getInitParameter(String name)
Return the specified context initialization parameter.

Parameters:
name - Name of the requested parameter


getInitParameterNames

public Enumeration getInitParameterNames()
Return an enumeration of the names of context initialization parameters.


getMajorVersion

public int getMajorVersion()
Return the Servlet API major version number.


getMimeType

public String getMimeType(String file)
Return the MIME type for the specified filename.

Parameters:
file - Filename whose MIME type is requested


getMinorVersion

public int getMinorVersion()
Return the Servlet API minor version number.


getNamedDispatcher

public RequestDispatcher getNamedDispatcher(String name)
Return a request dispatcher for the specified servlet name.

Parameters:
name - Name of the requested servlet


getRealPath

public String getRealPath(String path)
Return the real path for the specified context-relative virtual path.

Parameters:
path - The context-relative virtual path to resolve


getRequestDispatcher

public RequestDispatcher getRequestDispatcher(String path)
Return a request dispatcher for the specified context-relative path.

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


getResource

public URL getResource(String path)
            throws MalformedURLException
Return a URL object of a resource that is mapped to the specified context-relative path.

Parameters:
path - Context-relative path of the desired resource


getResourceAsStream

public InputStream getResourceAsStream(String path)
Return an InputStream allowing access to the resource at the specified context-relative path.

Parameters:
path - Context-relative path of the desired resource


getResourcePaths

public Set getResourcePaths(String path)
Return the set of resource paths for the "directory" at the specified context path.

Parameters:
path - Context-relative base path


getServerInfo

public String getServerInfo()
Return descriptive information about this server.


getServlet

public Servlet getServlet(String name)
            throws ServletException

Deprecated. This method has been deprecated with no replacement

Return a null reference for the specified servlet name.

Parameters:
name - Name of the requested servlet


getServletContextName

public String getServletContextName()
Return the name of this servlet context.


getServletNames

public Enumeration getServletNames()

Deprecated. This method has been deprecated with no replacement

Return an empty enumeration of servlet names.


getServlets

public Enumeration getServlets()

Deprecated. This method has been deprecated with no replacement

Return an empty enumeration of servlets.


log

public void log(Exception exception,
                String message)

Deprecated. Use log(String,Throwable) instead

Log the specified message and exception.

Parameters:
exception - The exception to be logged
message - The message to be logged


log

public void log(String message)
Log the specified message.

Parameters:
message - The message to be logged


log

public void log(String message,
                Throwable exception)
Log the specified message and exception.

Parameters:
message - The message to be logged
exception - The exception to be logged


removeAttribute

public void removeAttribute(String name)
Remove the specified context attribute.

Parameters:
name - Name of the attribute to remove


setAttribute

public void setAttribute(String name,
                         Object value)
Set or replace the specified context attribute.

Parameters:
name - Name of the context attribute to set
value - Corresponding attribute value


Copyright B) 2000 Apache Software Foundation. All Rights Reserved.