public String fillTemplateWithDocumentInfos( String strTemplatePath, Collection<Blog> listBlogs, Locale locale, String strBaseUrl, AdminUser user )
    {
        Collection<Portlet> porletCollec = null;
        Map<String, Object> model = new HashMap<String, Object>( );
        Collection<Blog> listBlogAuthorized = new ArrayList<Blog>( );

        for ( Blog blog : listBlogs )
        {

            porletCollec = PublishingService.getInstance( ).getPortletsByBlogId( Integer.toString( blog.getId( ) ) );
            porletCollec = PortletService.getInstance( ).getAuthorizedPortletCollection( porletCollec, user );

            // the document insert in the buffer must be publish in a authorized portlet
            if ( porletCollec.size( ) > 0 )
            {

                String strProdUrl = AppPathService.getProdUrl( strBaseUrl );
                model.put( MARK_PROD_URL, strProdUrl );

                Blog blg = BlogService.getInstance( ).loadBlog( blog.getId( ) );
                listBlogAuthorized.add( blg );
            }
        }

        if ( listBlogAuthorized.size( ) != 0 )
        {

            model.put( MARK_LIST_BLOG, listBlogAuthorized );
            model.put( NewsLetterConstants.MARK_BASE_URL, strBaseUrl );

        DAOUtil daoUtil = new DAOUtil( SQL_QUERY_SELECT_NEWSLETTER_CATEGORY_IDS, plugin );
        daoUtil.setInt( 1, nTopicId );
        daoUtil.executeQuery( );

        List<Integer> list = new ArrayList<Integer>( );

        while ( daoUtil.next( ) )
        {
            int nResultId = daoUtil.getInt( 1 );
            list.add( Integer.valueOf( nResultId ) );
        }

        int [ ] nIdsArray = new int [ list.size( )];

        for ( int i = 0; i < list.size( ); i++ )
        {
            Integer nId = list.get( i );
            nIdsArray [i] = nId.intValue( );
        }

        daoUtil.free( );

        return nIdsArray;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public void associateNewsLetterDocumentPortlet( int nTopicId, int nPortletId, Plugin plugin )