org.openxava.util
Class Users

java.lang.Object
  org.openxava.util.Users

public class Users
extends java.lang.Object

Utilities to work with users.

Author:

Javier Paniza

Constructor Summary

Users()

Method Summary

static java.lang.String	getCurrent() The user name associated to the current thread.
static java.util.prefs.Preferences	getCurrentPreferences() Preferences of the user associated to the current thread.
static UserInfo	getCurrentUserInfo() Info about the current logged user.
static void	setCurrent(HttpServletRequest request) Associated the user of the request to the current thread.
static void	setCurrent(java.lang.String userName) Associated an user to the current thread.

Methods inherited from class java.lang.Object

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

Constructor Detail

Users

public Users()

Method Detail

getCurrent

public static java.lang.String getCurrent()

The user name associated to the current thread.

Returns:

null if no user logged.

getCurrentPreferences

public static java.util.prefs.Preferences getCurrentPreferences()
                                                         throws java.util.prefs.BackingStoreException

Preferences of the user associated to the current thread.

You can use this preference for read and update user preferences, in this way:

 // Obtain preferences for the current user and node (an arbitrary category of your choice).
 Preferences preferences = Users.getCurrentPreferences().node("mynode");
 
 // Read a property value
 boolean rowsHidden = preferences.getBoolean(ROWS_HIDDEN, false);
  
 // Modify and save a property  
 preferences.putBoolean(ROWS_HIDDEN, rowsHidden);
 preferences.flush();
 

Remember, you must call flush() always in order to make persistent the changes in preferences.

Returns:

The preferences object associated to the current user.

Throws:

java.util.prefs.BackingStoreException - Some problem on load preferences.

getCurrentUserInfo

public static UserInfo getCurrentUserInfo()

Info about the current logged user.

It only returns meaningful info if we are inside a portal.

Returns:

Not null. If not info available it returns a UserInfo object with no info.

setCurrent

public static void setCurrent(java.lang.String userName)

Associated an user to the current thread.

setCurrent

public static void setCurrent(HttpServletRequest request)

Associated the user of the request to the current thread.

Takes into account JetSpeed 1.5 user managament, althought it's generic enought to work in any servlet container.