org.apache.struts2.jasper.servlet
Class JspServlet

java.lang.Object
  extended by javax.servlet.GenericServlet
      extended by javax.servlet.http.HttpServlet
          extended by org.apache.struts2.jasper.servlet.JspServlet
All Implemented Interfaces:
java.io.Serializable, javax.servlet.Servlet, javax.servlet.ServletConfig, org.apache.PeriodicEventListener

public class JspServlet
extends javax.servlet.http.HttpServlet
implements org.apache.PeriodicEventListener

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
See Also:
Serialized Form

Constructor Summary
JspServlet()
           
 
Method Summary
 void destroy()
           
 int getJspCount()
          Returns the number of JSPs for which JspServletWrappers exist, i.e., the number of JSPs that have been loaded into the webapp with which this JspServlet is associated.
 int getJspReloadCount()
          Gets the number of JSPs that have been reloaded.
 void init(javax.servlet.ServletConfig config)
           
 void periodicEvent()
           
 void service(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response)
           
 void setJspReloadCount(int count)
          Resets the JSP reload counter.
 
Methods inherited from class javax.servlet.http.HttpServlet
doDelete, doGet, doHead, doOptions, doPost, doPut, doTrace, getLastModified, service
 
Methods inherited from class javax.servlet.GenericServlet
getInitParameter, getInitParameterNames, getServletConfig, getServletContext, getServletInfo, getServletName, init, log, log
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

JspServlet

public JspServlet()
Method Detail

init

public void init(javax.servlet.ServletConfig config)
          throws javax.servlet.ServletException
Specified by:
init in interface javax.servlet.Servlet
Overrides:
init in class javax.servlet.GenericServlet
Throws:
javax.servlet.ServletException

getJspCount

public int getJspCount()
Returns the number of JSPs for which JspServletWrappers exist, i.e., the number of JSPs that have been loaded into the webapp with which this JspServlet is associated.

This info may be used for monitoring purposes.

Returns:
The number of JSPs that have been loaded into the webapp with which this JspServlet is associated

setJspReloadCount

public void setJspReloadCount(int count)
Resets the JSP reload counter.

Parameters:
count - Value to which to reset the JSP reload counter

getJspReloadCount

public int getJspReloadCount()
Gets the number of JSPs that have been reloaded.

This info may be used for monitoring purposes.

Returns:
The number of JSPs (in the webapp with which this JspServlet is associated) that have been reloaded

service

public void service(javax.servlet.http.HttpServletRequest request,
                    javax.servlet.http.HttpServletResponse response)
             throws javax.servlet.ServletException,
                    java.io.IOException
Overrides:
service in class javax.servlet.http.HttpServlet
Throws:
javax.servlet.ServletException
java.io.IOException

destroy

public void destroy()
Specified by:
destroy in interface javax.servlet.Servlet
Overrides:
destroy in class javax.servlet.GenericServlet

periodicEvent

public void periodicEvent()
Specified by:
periodicEvent in interface org.apache.PeriodicEventListener


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