List getAuthorizedUsers()

in src/main/java/org/apache/directory/fortress/core/impl/UserDAO.java [1117:1196]
73 lines of code
7 McCabe index (conditional complexity)

    List<User> getAuthorizedUsers( Role role ) throws FinderException
    {
        List<User> userList = new ArrayList<>();
        LdapConnection ld = null;
        String userRoot = getRootDn( role.getContextId(), GlobalIds.USER_ROOT );

        try
        {
            String roleVal = encodeSafeText( role.getName(), GlobalIds.USERID_LEN );
            StringBuilder filterbuf = new StringBuilder();
            filterbuf.append( GlobalIds.FILTER_PREFIX );
            filterbuf.append( USERS_AUX_OBJECT_CLASS_NAME );
            filterbuf.append( ")(" );

            Set<String> roles = RoleUtil.getInstance().getDescendants( role.getName(), role.getContextId() );

            if ( CollectionUtils.isNotEmpty( roles ) )
            {
                filterbuf.append( "|(" );
                filterbuf.append( USER_ROLE_ASSIGN );
                filterbuf.append( "=" );
                filterbuf.append( roleVal );
                filterbuf.append( ")" );

                for ( String uRole : roles )
                {
                    filterbuf.append( "(" );
                    filterbuf.append( USER_ROLE_ASSIGN );
                    filterbuf.append( "=" );
                    filterbuf.append( uRole );
                    filterbuf.append( ")" );
                }

                filterbuf.append( ")" );
            }
            else
            {
                filterbuf.append( USER_ROLE_ASSIGN );
                filterbuf.append( "=" );
                filterbuf.append( roleVal );
                filterbuf.append( ")" );
            }

            filterbuf.append( ")" );
            ld = getAdminConnection();
            try ( SearchCursor searchResults = search( ld, userRoot, SearchScope.ONELEVEL, filterbuf.toString(), defaultAtrs, false,
                Config.getInstance().getInt(GlobalIds.CONFIG_LDAP_MAX_BATCH_SIZE, GlobalIds.BATCH_SIZE ) ) )
            {
                long sequence = 0;
                while ( searchResults.next() )
                {
                    userList.add( unloadLdapEntry( searchResults.getEntry(), sequence++, role.getContextId() ) );
                }
            }
            catch ( IOException e )
            {
                String warning = "getAuthorizedUsers role name [" + role.getName() + "] caught IOException=" + e
                        .getMessage();
                throw new FinderException( GlobalErrIds.URLE_SEARCH_FAILED, warning, e );
            }
            catch ( CursorException e )
            {
                String warning = "getAuthorizedUsers role name [" + role.getName() + "] caught LDAPException=" + e
                        .getMessage();
                throw new FinderException( GlobalErrIds.URLE_SEARCH_FAILED, warning, e );
            }
        }
        catch ( LdapException e )
        {
            String warning = "getAuthorizedUsers role name [" + role.getName() + "] caught LDAPException=" + e
                .getMessage();
            throw new FinderException( GlobalErrIds.URLE_SEARCH_FAILED, warning, e );
        }
        finally
        {
            closeAdminConnection( ld );
        }

        return userList;
    }