org.acegisecurity.taglibs.authz
Class AuthenticationTag

java.lang.Object
  javax.servlet.jsp.tagext.TagSupport
      org.acegisecurity.taglibs.authz.AuthenticationTag

All Implemented Interfaces:

Serializable, javax.servlet.jsp.tagext.IterationTag, javax.servlet.jsp.tagext.JspTag, javax.servlet.jsp.tagext.Tag

public class AuthenticationTag
extends javax.servlet.jsp.tagext.TagSupport

An Tag implementation that allows convenient access to the current Authentication object.

Whilst JSPs can access the SecurityContext directly, this tag avoids handling null conditions. The tag also properly accommodates Authentication.getPrincipal(), which can either be a String or a UserDetails.

Version:

$Id: AuthenticationTag.java 1496 2006-05-23 13:38:33Z benalex $

Author:

Ben Alex

See Also:

Serialized Form

Field Summary

Fields inherited from class javax.servlet.jsp.tagext.TagSupport

id, pageContext

Fields inherited from interface javax.servlet.jsp.tagext.IterationTag

EVAL_BODY_AGAIN

Fields inherited from interface javax.servlet.jsp.tagext.Tag

EVAL_BODY_INCLUDE, EVAL_PAGE, SKIP_BODY, SKIP_PAGE

Constructor Summary

AuthenticationTag()

Method Summary

int	doStartTag()
String	getMethodPrefix()
String	getOperation()
protected String	invokeOperation(Object obj)
void	setMethodPrefix(String methodPrefix)
void	setOperation(String operation)
protected void	validateArguments()
protected void	writeMessage(String msg)

Methods inherited from class javax.servlet.jsp.tagext.TagSupport

doAfterBody, doEndTag, findAncestorWithClass, getId, getParent, getValue, getValues, release, removeValue, setId, setPageContext, setParent, setValue

Methods inherited from class java.lang.Object

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

Constructor Detail

AuthenticationTag

public AuthenticationTag()

Method Detail

doStartTag

public int doStartTag()
               throws javax.servlet.jsp.JspException

Specified by:

doStartTag in interface javax.servlet.jsp.tagext.Tag

Overrides:

doStartTag in class javax.servlet.jsp.tagext.TagSupport

Throws:

javax.servlet.jsp.JspException

getMethodPrefix

public String getMethodPrefix()

getOperation

public String getOperation()

invokeOperation

protected String invokeOperation(Object obj)
                          throws javax.servlet.jsp.JspException

Throws:

javax.servlet.jsp.JspException

setMethodPrefix

public void setMethodPrefix(String methodPrefix)

setOperation

public void setOperation(String operation)

validateArguments

protected void validateArguments()
                          throws javax.servlet.jsp.JspException

Throws:

javax.servlet.jsp.JspException

writeMessage

protected void writeMessage(String msg)
                     throws javax.servlet.jsp.JspException

Throws:

javax.servlet.jsp.JspException