org.acegisecurity.taglibs.authz
Class AuthenticationTag

java.lang.Object
  extended by javax.servlet.jsp.tagext.TagSupport
      extended by 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 1784 2007-02-24 21:00:24Z luke_t $
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


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