org.apache.wiki.auth.authorize

Class XMLGroupDatabase

java.lang.Object

org.apache.wiki.auth.authorize.XMLGroupDatabase

All Implemented Interfaces:

GroupDatabase

public class XMLGroupDatabase
extends Object
implements GroupDatabase

GroupDatabase implementation for loading, persisting and storing wiki groups, using an XML file for persistence. Group entries are simple <group> elements under the root. Each group member is representated by a <member> element. For example:

<groups>
<group name="TV" created="Jun 20, 2006 2:50:54 PM" lastModified="Jan 21, 2006 2:50:54 PM">
<member principal="Archie Bunker" />
<member principal="BullwinkleMoose" />
<member principal="Fred Friendly" />
</group>
<group name="Literature" created="Jun 22, 2006 2:50:54 PM" lastModified="Jan 23, 2006 2:50:54 PM">
<member principal="Charles Dickens" />
<member principal="Homer" />
</group>
</groups>

Since:

2.4.17

Field Summary

Fields

Modifier and Type	Field and Description
protected static org.apache.log4j.Logger	log
static String	PROP_DATABASE The jspwiki.properties property specifying the file system location of the group database.

Constructor Summary

Constructors

Constructor and Description
XMLGroupDatabase()

Method Summary

Modifier and Type	Method and Description
void	delete(Group group) Looks up and deletes a Group from the group database.
Group[]	groups() Returns all wiki groups that are stored in the GroupDatabase as an array of Group objects.
void	initialize(WikiEngine engine, Properties props) Initializes the group database based on values from a Properties object.
void	save(Group group, Principal modifier) Saves a Group to the group database.

Methods inherited from class java.lang.Object

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

Field Detail

log

protected static final org.apache.log4j.Logger log

PROP_DATABASE

public static final String PROP_DATABASE

The jspwiki.properties property specifying the file system location of the group database.

See Also:

Constant Field Values

Constructor Detail

XMLGroupDatabase

public XMLGroupDatabase()

Method Detail

delete

public void delete(Group group)
            throws WikiSecurityException

Looks up and deletes a Group from the group database. If the group database does not contain the supplied Group. this method throws a NoSuchPrincipalException. The method commits the results of the delete to persistent storage.

Specified by:

delete in interface GroupDatabase

Parameters:

group - the group to remove

Throws:

WikiSecurityException - if the database does not contain the supplied group (thrown as NoSuchPrincipalException) or if the commit did not succeed

groups

public Group[] groups()
               throws WikiSecurityException

Returns all wiki groups that are stored in the GroupDatabase as an array of Group objects. If the database does not contain any groups, this method will return a zero-length array. This method causes back-end storage to load the entire set of group; thus, it should be called infrequently (e.g., at initialization time).

Specified by:

groups in interface GroupDatabase

Returns:

the wiki groups

Throws:

WikiSecurityException - if the groups cannot be returned by the back-end

initialize

public void initialize(WikiEngine engine,
                       Properties props)
                throws NoRequiredPropertyException,
                       WikiSecurityException

Initializes the group database based on values from a Properties object. The properties object must contain a file path to the XML database file whose key is PROP_DATABASE.

Specified by:

initialize in interface GroupDatabase

Parameters:

engine - the wiki engine

props - the properties used to initialize the group database

Throws:

NoRequiredPropertyException - if the user database cannot be located, parsed, or opened

WikiSecurityException - if the database could not be initialized successfully

save

public void save(Group group,
                 Principal modifier)
          throws WikiSecurityException

Saves a Group to the group database. Note that this method must fail, and throw an IllegalArgumentException, if the proposed group is the same name as one of the built-in Roles: e.g., Admin, Authenticated, etc. The database is responsible for setting create/modify timestamps, upon a successful save, to the Group. The method commits the results of the delete to persistent storage.

Specified by:

save in interface GroupDatabase

Parameters:

group - the Group to save

modifier - the user who saved the Group

Throws:

WikiSecurityException - if the Group could not be saved successfully