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JspServlet (Jasper Internal API Documentation)

org.apache.jasper.servlet
Class JspServlet


java.lang.Object

  |

  +--javax.servlet.GenericServlet

        |

        +--javax.servlet.http.HttpServlet

              |

              +--org.apache.jasper.servlet.JspServlet

All Implemented Interfaces:
java.io.Serializable, javax.servlet.Servlet, javax.servlet.ServletConfig

public class JspServlet
extends javax.servlet.http.HttpServlet

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
See Also:
Serialized Form

Field Summary
protected  javax.servlet.ServletConfig config
           
protected  javax.servlet.ServletContext context
           
protected  ServletEngine engine
           
protected  java.util.Hashtable jsps
           
protected  Options options
           
protected  java.net.URLClassLoader parentClassLoader
           
protected  java.lang.String serverInfo
           
 
Constructor Summary
JspServlet()
           
 
Method Summary
 void destroy()
           
 void init(javax.servlet.ServletConfig config)
           
 boolean isOutDated(java.io.File jsp, JspCompilationContext ctxt, Mangler mangler)
          Determines whether the current JSP class is older than the JSP file from whence it came
protected  java.lang.String normalize(java.lang.String path)
          Return a context-relative path, beginning with a "/", that represents the canonical version of the specified path after ".." and "." elements are resolved out.
 void service(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response)
           
 
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
 

Field Detail

context


protected javax.servlet.ServletContext context

jsps


protected java.util.Hashtable jsps

config


protected javax.servlet.ServletConfig config

options


protected Options options

parentClassLoader


protected java.net.URLClassLoader parentClassLoader

engine


protected ServletEngine engine

serverInfo


protected java.lang.String serverInfo
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
javax.servlet.ServletException

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
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

isOutDated


public boolean isOutDated(java.io.File jsp,
                          JspCompilationContext ctxt,
                          Mangler mangler)
Determines whether the current JSP class is older than the JSP file from whence it came


normalize


protected java.lang.String normalize(java.lang.String path)
Return a context-relative path, beginning with a "/", that represents the canonical version of the specified path after ".." and "." elements are resolved out. If the specified path attempts to go outside the boundaries of the current context (i.e. too many ".." path elements are present), return null instead.

Parameters:
path - Path to be normalized


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