org.apache.jasper.servlet

Class JspServletWrapper

public class JspServletWrapper extends Object

The JSP engine (a.k.a Jasper). The servlet container is responsible for providing a URLClassLoader for the web application context Jasper is being used in. Jasper will try get the Tomcat ServletContext attribute for its ServletContext class loader, if that fails, it uses the parent class loader. In either case, it must be a URLClassLoader.

Author: Anil K. Vijendran Harish Prabandham Remy Maucherat Kin-man Chung Glenn Nielsen Tim Fennell

Constructor Summary
	JspServletWrapper(ServletContext servletContext, Options options, String tagFilePath, TagInfo tagInfo, JspRuntimeContext rctxt, URL tagFileJarUrl)

Method Summary
int	decTripCount()
void	destroy()
List	getDependants() Get a list of files that the current page has source dependency on.
JspCompilationContext	getJspEngineContext()
long	getLastModificationTest()
Servlet	getServlet()
ServletContext	getServletContext()
protected JasperException	handleJspException(Exception ex) Attempts to construct a JasperException that contains helpful information about what went wrong.
int	incTripCount()
boolean	isTagFile()
Class	loadTagFile() Compile (if needed) and load a tag file
Class	loadTagFilePrototype() Compile and load a prototype for the Tag file.
void	service(HttpServletRequest request, HttpServletResponse response, boolean precompile)
void	setCompilationException(JasperException je) Sets the compilation exception for this JspServletWrapper.
void	setLastModificationTest(long lastModificationTest)
void	setReload(boolean reload)
void	setServletClassLastModifiedTime(long lastModified) Sets the last-modified time of the servlet class file associated with this JspServletWrapper.

Constructor Detail

JspServletWrapper

public JspServletWrapper(ServletContext servletContext, Options options, String tagFilePath, TagInfo tagInfo, JspRuntimeContext rctxt, URL tagFileJarUrl)

Method Detail

decTripCount

public int decTripCount()

destroy

public void destroy()

getDependants

public List getDependants()

Get a list of files that the current page has source dependency on.

getJspEngineContext

public JspCompilationContext getJspEngineContext()

getLastModificationTest

public long getLastModificationTest()

Returns: Returns the lastModificationTest.

getServlet

public Servlet getServlet()

getServletContext

public ServletContext getServletContext()

handleJspException

protected JasperException handleJspException(Exception ex)

Attempts to construct a JasperException that contains helpful information about what went wrong. Uses the JSP compiler system to translate the line number in the generated servlet that originated the exception to a line number in the JSP. Then constructs an exception containing that information, and a snippet of the JSP to help debugging. Please see http://issues.apache.org/bugzilla/show_bug.cgi?id=37062 and http://www.tfenne.com/jasper/ for more details.

Parameters: ex the exception that was the cause of the problem.

Returns: a JasperException with more detailed information

Parameters: je The compilation exception

Parameters: lastModified Last-modified time of servlet class