org.apache.turbine.modules.screens
Class VelocitySecureScreen

java.lang.Object
  org.apache.turbine.modules.Assembler
      org.apache.turbine.modules.Screen
          org.apache.turbine.modules.screens.TemplateScreen
              org.apache.turbine.modules.screens.VelocityScreen
                  org.apache.turbine.modules.screens.VelocitySecureScreen

public abstract class VelocitySecureScreen

extends VelocityScreen

VelocitySecureScreen Always performs a Security Check that you've defined before executing the doBuildtemplate(). You should extend this class and add the specific security check needed. If you have a number of screens that need to perform the same check, you could make a base screen by extending this class and implementing the isAuthorized(). Then each screen that needs to perform the same check could extend your base screen.

Version:

$Id: VelocitySecureScreen.java 264148 2005-08-29 14:21:04Z henning $

Author:

Dave Bryson

Field Summary

Fields inherited from class org.apache.turbine.modules.screens.TemplateScreen

log

Constructor Summary

VelocitySecureScreen()

Method Summary

protected void	doBuildTemplate(RunData data) This method overrides the method in VelocityScreen to perform a security check first.
protected abstract void	doBuildTemplate(RunData data, org.apache.velocity.context.Context context) Implement this to add information to the context.
protected abstract boolean	isAuthorized(RunData data) Implement this method to perform the security check needed.

Methods inherited from class org.apache.turbine.modules.screens.VelocityScreen

buildTemplate, getContext

Methods inherited from class org.apache.turbine.modules.screens.TemplateScreen

doBuild, doPostBuildTemplate, doRedirect, doRedirect, setTemplate

Methods inherited from class org.apache.turbine.modules.Screen

build, getLayout, prepareText, prepareTextMinimum, setLayout

Methods inherited from class java.lang.Object

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

Constructor Detail

VelocitySecureScreen

public VelocitySecureScreen()

Method Detail

doBuildTemplate

protected abstract void doBuildTemplate(RunData data,
                                        org.apache.velocity.context.Context context)
                                 throws java.lang.Exception

Implement this to add information to the context.

Overrides:

doBuildTemplate in class VelocityScreen

Parameters:

data - Turbine information.

context - Context for web pages.

Throws:

Exception, - a generic exception.

java.lang.Exception

doBuildTemplate

protected void doBuildTemplate(RunData data)
                        throws java.lang.Exception

This method overrides the method in VelocityScreen to perform a security check first.

Overrides:

doBuildTemplate in class VelocityScreen

Parameters:

data - Turbine information.

Throws:

Exception, - a generic exception.

java.lang.Exception

isAuthorized

protected abstract boolean isAuthorized(RunData data)
                                 throws java.lang.Exception

Implement this method to perform the security check needed. You should set the template in this method that you want the user to be sent to if they're unauthorized. See the VelocitySecurityCheck utility.

Parameters:

data - Turbine information.

Returns:

True if the user is authorized to access the screen.

Throws:

Exception, - a generic exception.

java.lang.Exception