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java.lang.Objectorg.apache.jasper.servlet.JspCServletContext
public class JspCServletContext
Simple ServletContext implementation without
HTTP-specific methods.
| 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 |
getContextPath()
Returns the context path of the web application. |
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. |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Field Detail |
|---|
protected Hashtable myAttributes
protected PrintWriter myLogWriter
protected URL myResourceBaseURL
| Constructor Detail |
|---|
public JspCServletContext(PrintWriter aLogWriter,
URL aResourceBaseURL)
aLogWriter - PrintWriter which is used for log() callsaResourceBaseURL - Resource base URL| Method Detail |
|---|
public Object getAttribute(String name)
getAttribute in interface ServletContextname - Name of the requested attribute
Object containing the value
of the attribute, or null
if no attribute exists matching the given
nameServletContext.getAttributeNames()public Enumeration getAttributeNames()
getAttributeNames in interface ServletContextEnumeration of attribute
namesServletContext.getAttribute(java.lang.String)public String getContextPath()
getContextPath in interface ServletContextHttpServletRequest.getContextPath()public ServletContext getContext(String uripath)
getContext in interface ServletContexturipath - Server-relative path starting with '/'
ServletContext object that
corresponds to the named URL, or null if either
none exists or the container wishes to restrict
this access.RequestDispatcherpublic String getInitParameter(String name)
getInitParameter in interface ServletContextname - Name of the requested parameter
String containing at least the
servlet container name and version numberServletConfig.getInitParameter(java.lang.String)public Enumeration getInitParameterNames()
getInitParameterNames in interface ServletContextEnumeration of String
objects containing the names of the context's
initialization parametersServletConfig.getInitParameter(java.lang.String)public int getMajorVersion()
getMajorVersion in interface ServletContextpublic String getMimeType(String file)
getMimeType in interface ServletContextfile - Filename whose MIME type is requested
String specifying the file's MIME typepublic int getMinorVersion()
getMinorVersion in interface ServletContextpublic RequestDispatcher getNamedDispatcher(String name)
getNamedDispatcher in interface ServletContextname - Name of the requested servlet
RequestDispatcher object
that acts as a wrapper for the named servlet,
or null if the ServletContext
cannot return a RequestDispatcherRequestDispatcher,
ServletContext.getContext(java.lang.String),
ServletConfig.getServletName()public String getRealPath(String path)
getRealPath in interface ServletContextpath - The context-relative virtual path to resolve
String specifying the real path,
or null if the translation cannot be performedpublic RequestDispatcher getRequestDispatcher(String path)
getRequestDispatcher in interface ServletContextpath - Context-relative path for which to acquire a dispatcher
RequestDispatcher object
that acts as a wrapper for the resource
at the specified path, or null if
the ServletContext cannot return
a RequestDispatcherRequestDispatcher,
ServletContext.getContext(java.lang.String)
public URL getResource(String path)
throws MalformedURLException
getResource in interface ServletContextpath - Context-relative path of the desired resource
null if there is no resource
at that path
MalformedURLException - if the resource path is
not properly formedpublic InputStream getResourceAsStream(String path)
getResourceAsStream in interface ServletContextpath - Context-relative path of the desired resource
InputStream returned to the
servlet, or null if no resource
exists at the specified pathpublic Set getResourcePaths(String path)
getResourcePaths in interface ServletContextpath - Context-relative base path
public String getServerInfo()
getServerInfo in interface ServletContextString containing at least the
servlet container name and version number
public Servlet getServlet(String name)
throws ServletException
getServlet in interface ServletContextname - Name of the requested servlet
ServletExceptionpublic String getServletContextName()
getServletContextName in interface ServletContextpublic Enumeration getServletNames()
getServletNames in interface ServletContextpublic Enumeration getServlets()
getServlets in interface ServletContextpublic void log(String message)
log in interface ServletContextmessage - The message to be logged
public void log(Exception exception,
String message)
log in interface ServletContextexception - The exception to be loggedmessage - The message to be logged
public void log(String message,
Throwable exception)
log in interface ServletContextmessage - The message to be loggedexception - The exception to be loggedpublic void removeAttribute(String name)
removeAttribute in interface ServletContextname - Name of the attribute to remove
public void setAttribute(String name,
Object value)
setAttribute in interface ServletContextname - Name of the context attribute to setvalue - Corresponding attribute value
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