Class JspServletWrapper

java.lang.Object

org.apache.jasper.servlet.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.

Field Summary

Fields

Modifier and Type	Field	Description
private long	available
private JasperException	compileException
private javax.servlet.ServletConfig	config
private JspCompilationContext	ctxt
private boolean	firstTime
private boolean	isTagFile
private File	jspFile
private JspProbeEmitter	jspProbeEmitter
private String	jspUri
private long	lastModificationTest
private static Logger	log
private Options	options
private boolean	reload
private Class	servletClass
private long	servletClassLastModifiedTime
private Class	tagHandlerClass
private javax.servlet.Servlet	theServlet
private int	tripCount

Constructor Summary

Constructors

Constructor	Description
JspServletWrapper(javax.servlet.ServletConfig config, Options options, String jspUri, boolean isErrorPage, JspRuntimeContext rctxt)
JspServletWrapper(javax.servlet.ServletContext servletContext, Options options, String tagFilePath, javax.servlet.jsp.tagext.TagInfo tagInfo, JspRuntimeContext rctxt, URL tagFileJarUrl)

Method Summary

Modifier and Type	Method	Description
int	decTripCount()
void	destroy()
List<String>	getDependants()	Get a list of files that the current page has source dependency on.
JspCompilationContext	getJspEngineContext()
File	getJspFile()
long	getLastModificationTest()
javax.servlet.Servlet	getServlet()
long	getServletClassLastModifiedTime()	Gets the last-modified time of the servlet class file associated with this JspServletWrapper.
javax.servlet.ServletContext	getServletContext()
int	incTripCount()
boolean	isTagFile()
private void	jspFileNotFound(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response)
Class	loadTagFile()	Compile (if needed) and load a tag file
Class	loadTagFilePrototype()	Compile and load a prototype for the Tag file.
void	service(javax.servlet.http.HttpServletRequest request, javax.servlet.http.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.

Methods inherited from class Object

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

Field Details

log

private static Logger log

theServlet

private javax.servlet.Servlet theServlet

jspUri

private String jspUri

servletClass

private Class servletClass

tagHandlerClass

private Class tagHandlerClass

ctxt

private JspCompilationContext ctxt

available

private long available

config

private javax.servlet.ServletConfig config

options

private Options options

firstTime

private boolean firstTime

reload

private boolean reload

isTagFile

private boolean isTagFile

tripCount

private int tripCount

compileException

private JasperException compileException

jspProbeEmitter

private JspProbeEmitter jspProbeEmitter

servletClassLastModifiedTime

private long servletClassLastModifiedTime

jspFile

private File jspFile

lastModificationTest

private long lastModificationTest

Constructor Details

JspServletWrapper

JspServletWrapper(javax.servlet.ServletConfig config,
 Options options,
 String jspUri,
 boolean isErrorPage,
 JspRuntimeContext rctxt)
           throws JasperException

Throws:

JasperException

JspServletWrapper

public JspServletWrapper(javax.servlet.ServletContext servletContext,
 Options options,
 String tagFilePath,
 javax.servlet.jsp.tagext.TagInfo tagInfo,
 JspRuntimeContext rctxt,
 URL tagFileJarUrl)
                  throws JasperException

Throws:

JasperException

Method Details

getJspEngineContext

public JspCompilationContext getJspEngineContext()

setReload

public void setReload(boolean reload)

getServlet

public javax.servlet.Servlet getServlet()
                                 throws javax.servlet.ServletException,
IOException,
ClassNotFoundException

Throws:

javax.servlet.ServletException

IOException

ClassNotFoundException

getServletContext

public javax.servlet.ServletContext getServletContext()

setCompilationException

public void setCompilationException(JasperException je)

Sets the compilation exception for this JspServletWrapper.

Parameters:

je - The compilation exception

setServletClassLastModifiedTime

public void setServletClassLastModifiedTime(long lastModified)

Sets the last-modified time of the servlet class file associated with this JspServletWrapper.

Parameters:

lastModified - Last-modified time of servlet class

getServletClassLastModifiedTime

public long getServletClassLastModifiedTime()

Gets the last-modified time of the servlet class file associated with this JspServletWrapper.

Returns:

Last-modified time of servlet class

loadTagFile

public Class loadTagFile()
                  throws JasperException

Compile (if needed) and load a tag file

Throws:

JasperException

loadTagFilePrototype

public Class loadTagFilePrototype()
                           throws JasperException

Compile and load a prototype for the Tag file. This is needed when compiling tag files with circular dependencies. A prototpe (skeleton) with no dependencies on other other tag files is generated and compiled.

Throws:

JasperException

getDependants

public List<String> getDependants()

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

isTagFile

public boolean isTagFile()

incTripCount

public int incTripCount()

decTripCount

public int decTripCount()

service

public void service(javax.servlet.http.HttpServletRequest request,
 javax.servlet.http.HttpServletResponse response,
 boolean precompile)
             throws javax.servlet.ServletException,
IOException

Throws:

javax.servlet.ServletException

IOException

destroy

public void destroy()

getLastModificationTest

public long getLastModificationTest()

Returns:

Returns the lastModificationTest.

setLastModificationTest

public void setLastModificationTest(long lastModificationTest)

Parameters:

lastModificationTest - The lastModificationTest to set.

getJspFile

public File getJspFile()

jspFileNotFound

private void jspFileNotFound(javax.servlet.http.HttpServletRequest request,
 javax.servlet.http.HttpServletResponse response)
                      throws javax.servlet.ServletException,
IOException

Throws:

javax.servlet.ServletException

IOException