org.apache.sling.scripting.jsp.jasper.runtime

Class PageContextImpl

java.lang.Object

PageContext

org.apache.sling.scripting.jsp.jasper.runtime.PageContextImpl

public class PageContextImpl
extends PageContext

Implementation of the PageContext class from the JSP spec. Also doubles as a VariableResolver for the EL.

Method Summary

Modifier and Type	Method and Description
Object	findAttribute(String name)
void	forward(String relativeUrlPath)
void	forwardToErrorPage(String relativeUrlPath)
Object	getAttribute(String name)
Object	getAttribute(String name, int scope)
Enumeration<String>	getAttributeNamesInScope(int scope)
int	getAttributesScope(String name)
ELContext	getELContext()
Exception	getException() Returns the exception associated with this page context, if any.
ExpressionEvaluator	getExpressionEvaluator() Provides programmatic access to the ExpressionEvaluator.
JspWriter	getOut()
Object	getPage()
ServletRequest	getRequest()
ServletResponse	getResponse()
Servlet	getServlet()
ServletConfig	getServletConfig()
ServletContext	getServletContext()
HttpSession	getSession()
VariableResolver	getVariableResolver()
void	handlePageException(Exception ex)
void	handlePageException(Throwable t)
void	include(String relativeUrlPath)
void	include(String relativeUrlPath, boolean flush)
void	initialize(Servlet servlet, ServletRequest request, ServletResponse response, String errorPageURL, boolean needsSession, int bufferSize, boolean autoFlush)
JspWriter	popBody()
static Object	proprietaryEvaluate(String expression, Class expectedType, PageContext pageContext, ProtectedFunctionMapper functionMap, boolean escape) Proprietary method to evaluate EL expressions.
BodyContent	pushBody()
JspWriter	pushBody(Writer writer)
void	release()
void	removeAttribute(String name)
void	removeAttribute(String name, int scope)
void	setAttribute(String name, Object attribute)
void	setAttribute(String name, Object o, int scope)

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

initialize

public void initialize(Servlet servlet,
                       ServletRequest request,
                       ServletResponse response,
                       String errorPageURL,
                       boolean needsSession,
                       int bufferSize,
                       boolean autoFlush)
                throws IOException

Throws:

IOException

release

public void release()

getAttribute

public Object getAttribute(String name)

getAttribute

public Object getAttribute(String name,
                           int scope)

setAttribute

public void setAttribute(String name,
                         Object attribute)

setAttribute

public void setAttribute(String name,
                         Object o,
                         int scope)

removeAttribute

public void removeAttribute(String name,
                            int scope)

getAttributesScope

public int getAttributesScope(String name)

findAttribute

public Object findAttribute(String name)

getAttributeNamesInScope

public Enumeration<String> getAttributeNamesInScope(int scope)

removeAttribute

public void removeAttribute(String name)

getOut

public JspWriter getOut()

getSession

public HttpSession getSession()

getServlet

public Servlet getServlet()

getServletConfig

public ServletConfig getServletConfig()

getServletContext

public ServletContext getServletContext()

getRequest

public ServletRequest getRequest()

getResponse

public ServletResponse getResponse()

getException

public Exception getException()

Returns the exception associated with this page context, if any.

Added wrapping for Throwables to avoid ClassCastException: see Bugzilla 31171 for details.

Returns:

The Exception associated with this page context, if any.

getPage

public Object getPage()

include

public void include(String relativeUrlPath)
             throws ServletException,
                    IOException

Throws:

ServletException

IOException

include

public void include(String relativeUrlPath,
                    boolean flush)
             throws ServletException,
                    IOException

Throws:

ServletException

IOException

getVariableResolver

public VariableResolver getVariableResolver()

forward

public void forward(String relativeUrlPath)
             throws ServletException,
                    IOException

Throws:

ServletException

IOException

forwardToErrorPage

public void forwardToErrorPage(String relativeUrlPath)
                        throws ServletException,
                               IOException

Throws:

ServletException

IOException

pushBody

public BodyContent pushBody()

pushBody

public JspWriter pushBody(Writer writer)

popBody

public JspWriter popBody()

getExpressionEvaluator

public ExpressionEvaluator getExpressionEvaluator()

Provides programmatic access to the ExpressionEvaluator. The JSP Container must return a valid instance of an ExpressionEvaluator that can parse EL expressions.

handlePageException

public void handlePageException(Exception ex)
                         throws IOException,
                                ServletException

Throws:

IOException

ServletException

handlePageException

public void handlePageException(Throwable t)
                         throws IOException,
                                ServletException

Throws:

IOException

ServletException

proprietaryEvaluate

public static Object proprietaryEvaluate(String expression,
                                         Class expectedType,
                                         PageContext pageContext,
                                         ProtectedFunctionMapper functionMap,
                                         boolean escape)
                                  throws ELException

Proprietary method to evaluate EL expressions. XXX - This method should go away once the EL interpreter moves out of JSTL and into its own project. For now, this is necessary because the standard machinery is too slow.

Parameters:

expression - The expression to be evaluated

expectedType - The expected resulting type

pageContext - The page context

functionMap - Maps prefix and name to Method

Returns:

The result of the evaluation

Throws:

ELException

getELContext

public ELContext getELContext()