org.apache.jasper.compiler

Class JspRuntimeContext

java.lang.Object

org.apache.jasper.compiler.JspRuntimeContext

All Implemented Interfaces:

java.lang.Runnable

public final class JspRuntimeContext
extends java.lang.Object
implements java.lang.Runnable

Class for tracking JSP compile time file dependencies when the &060;%@include file="..."%&062; directive is used. A background thread periodically checks the files a JSP page is dependent upon. If a dpendent file changes the JSP page which included it is recompiled. Only used if a web application context is a directory.

Version:

$Revision: 1.19 $

Author:

Glenn L. Nielsen

Constructor Summary

Constructors

Constructor and Description
JspRuntimeContext(javax.servlet.ServletContext context, Options options) Create a JspRuntimeContext for a web application context.

Method Summary

Methods

Modifier and Type	Method and Description
void	addWrapper(java.lang.String jspUri, JspServletWrapper jsw) Add a new JspServletWrapper.
void	destroy() Process a "destory" event for this web application context.
java.lang.String	getClassPath() The classpath that is passed off to the Java compiler.
java.security.CodeSource	getCodeSource() Get the SecurityManager Policy CodeSource for this web applicaiton context.
java.net.URLClassLoader	getParentClassLoader() Get the parent URLClassLoader.
java.security.PermissionCollection	getPermissionCollection() Get the SecurityManager PermissionCollection for this web application context.
JspServletWrapper	getWrapper(java.lang.String jspUri) Get an already existing JspServletWrapper.
void	removeWrapper(java.lang.String jspUri) Remove a JspServletWrapper.
void	run() The background thread that checks for changes to files included by a JSP and flags that a recompile is required.
protected void	threadSleep() Sleep for the duration specified by the checkInterval property.
protected void	threadStart() Start the background thread that will periodically check for changes to compile time included files in a JSP.
protected void	threadStop() Stop the background thread that is periodically checking for changes to compile time included files in a JSP.

Methods inherited from class java.lang.Object

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

Constructor Detail

JspRuntimeContext

public JspRuntimeContext(javax.servlet.ServletContext context,
                 Options options)

Create a JspRuntimeContext for a web application context. Loads in any previously generated dependencies from file.

Parameters:

context - ServletContext for web application

Method Detail

addWrapper

public void addWrapper(java.lang.String jspUri,
              JspServletWrapper jsw)

Add a new JspServletWrapper.

Parameters:

jspUri - JSP URI

jsw - Servlet wrapper for JSP

getWrapper

public JspServletWrapper getWrapper(java.lang.String jspUri)

Get an already existing JspServletWrapper.

Parameters:

jspUri - JSP URI

Returns:

JspServletWrapper for JSP

removeWrapper

public void removeWrapper(java.lang.String jspUri)

Remove a JspServletWrapper.

Parameters:

jspUri - JSP URI of JspServletWrapper to remove

getCodeSource

public java.security.CodeSource getCodeSource()

Get the SecurityManager Policy CodeSource for this web applicaiton context.

Returns:

CodeSource for JSP

getParentClassLoader

public java.net.URLClassLoader getParentClassLoader()

Get the parent URLClassLoader.

Returns:

URLClassLoader parent

getPermissionCollection

public java.security.PermissionCollection getPermissionCollection()

Get the SecurityManager PermissionCollection for this web application context.

Returns:

PermissionCollection permissions

destroy

public void destroy()

Process a "destory" event for this web application context.

getClassPath

public java.lang.String getClassPath()

The classpath that is passed off to the Java compiler.

threadStart

protected void threadStart()

Start the background thread that will periodically check for changes to compile time included files in a JSP.

Throws:

java.lang.IllegalStateException - if we should not be starting a background thread now

threadStop

protected void threadStop()

Stop the background thread that is periodically checking for changes to compile time included files in a JSP.

threadSleep

protected void threadSleep()

Sleep for the duration specified by the checkInterval property.

run

public void run()

The background thread that checks for changes to files included by a JSP and flags that a recompile is required.

Specified by:

run in interface java.lang.Runnable