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## org.jbpm.task.identity
Class JAASUserGroupCallbackImpl

    java.lang.Object
      org.jbpm.task.identity.JAASUserGroupCallbackImpl

All Implemented Interfaces:
  UserGroupCallback

    public class JAASUserGroupCallbackImpl

extends Object
implements UserGroupCallback

JAAS based implementation of user group callback dedicated when using LocalTaskService in container such as JBoss AS. It relies on JACC api to collect information on currently logged on user when querying for tasks.
JACC exposes following named context in PolicyContext:
`javax.security.auth.Subject.container`
This returns `Subject` instance for currently authenticated user and next principals will be examined to find instances of `Group` and with given rolePrincipleName (by default Roles).
By default it works with JBoss Application Servers as it uses specific principal name to find the groups.

Field Summary
`protected static String` | `DEFAULT_PROPERTIES_NAME`

Constructor Summary
`JAASUserGroupCallbackImpl()`
`JAASUserGroupCallbackImpl(String rolesPrincipleName)`

Method Summary
`boolean` | `existsGroup(String groupId)` Resolves existence of group id.
`boolean` | `existsUser(String userId)` Resolves existence of user id.
`List<String>` | `getGroupsForUser(String userId, List<String> groupIds, List<String> allExistingGroupIds)` Returns list of group ids for specified user id.
`String` | `getRolePrincipleName()`
`void` | `setRolePrincipleName(String rolePrincipleName)`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### DEFAULT_PROPERTIES_NAME

    protected static final String DEFAULT_PROPERTIES_NAME

See Also:
  Constant Field Values

Constructor Detail

### JAASUserGroupCallbackImpl

    public JAASUserGroupCallbackImpl()

### JAASUserGroupCallbackImpl

    public JAASUserGroupCallbackImpl(String rolesPrincipleName)

Method Detail

### getRolePrincipleName

    public String getRolePrincipleName()

### setRolePrincipleName

    public void setRolePrincipleName(String rolePrincipleName)

### existsUser

    public boolean existsUser(String userId)

  Description copied from interface: `UserGroupCallback`
  Resolves existence of user id.

  Specified by:
    `existsUser` in interface `UserGroupCallback`
  Parameters:
    `userId` - the user id assigned to the task
  Returns:
    true if userId exists, false otherwise.

### existsGroup

    public boolean existsGroup(String groupId)

  Description copied from interface: `UserGroupCallback`
  Resolves existence of group id.

  Specified by:
    `existsGroup` in interface `UserGroupCallback`
  Parameters:
    `groupId` - the group id assigned to the task
  Returns:
    true if groupId exists, false otherwise.

### getGroupsForUser

    public List<String> getGroupsForUser(String userId,
                                         List<String> groupIds,
                                         List<String> allExistingGroupIds)

  Description copied from interface: `UserGroupCallback`
  Returns list of group ids for specified user id.

  Specified by:
    `getGroupsForUser` in interface `UserGroupCallback`
  Parameters:
    `userId` - the user id assigned to the task
    `groupIds` - list of group ids assigned to the task
    `allExistingGroupIds` - list of all currently known group ids
  Returns:
    List of group ids.

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